Professional Electrician & Installer June 2021

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TO EE FR DE RA ET TH

PROFESSIONAL

ELECTRICIAN THE BUSINESS MAGAZINE FOR THE ELECTRICAL TRADE

& INSTALLER

JUNE 2021

CONSUMER CULTURE SCOLMORE GETS CONSUMER FOCUSED AS IT LAUNCHES A NEW PRODUCT FAMILY

TECHNICAL & TRAINING

UNDERSTANDING EICR CODES, AM2 ADVICE AND UNDERFLOOR HEATING TIPS ALSO IN THIS ISSUE: PRIZE GIVEAWAYS ● NEW PRODUCTS ● CAUGHT ON CAMERA ● NEWS & VIEWS AND MORE…

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Total Average Net Distribution: 68,683 Certification period 1 January 2020 - 31 December 2020

June 2021 Volume 37 No.6

Regulars 7 11 32 37 44 47 76 87 88

19

VIEWPOINT NEWS CODEBREAKERS ASK OVIA MADE 2 MEASURE THE TRAINING GROUND NEW PRODUCTS IN PRACTICE CAPTAIN C-TEC CAUGHT ON CAMERA

News & Views 19 Electrical business owner, Ben Curry, tells us why he's been working 'on' the company, rather than 'in' it 23 Are you the ideal candidate to mentor a trainee?

“I decided to work on the business, rather than just in it”

Special Reports 26 We profile the team at Prowired Electrical Contractors 29 Why the electrical industry needs to attract more female professionals

Technical & Training 35 The significance of the change introduced by the 18th Edition to the verification required for the protective measure automatic disconnection of Supply (ADS) 39 A comprehensive guide to EICR coding 42 Additional protection for socket-outlets and risk assessments 46 Will the upturn in CPD continue in a post-pandemic landscape?

49 Understanding the requirements for selection of circuit-breakers when supplying LED lighting 52 How to ensure a safe, long-lasting underfloor heating installation

Products & Business Solutions

72 Peter Monfort reviews Di-LOG's new safe isolation kit

55 Why one business is benefitting from investment in the latest appliance testing technology

74 Gary Fisher tries out the Quickwire pluggable T-connector

56 Scolmore introduces a new product group to it’s growing family

79 Rounding-up the latest products, tools and equipment to help you in your work

58 The three things to consider when choosing fire safety systems

Prize Draws

60 Do you understand the various light bulb codes and categories?

24 WIN! C.K Mightyrod Toolbox sets to be won

62 A look at the evolution of emergency lighting systems

37 WIN! Bag a £250 multi-store voucher with Scolmore

65 Why you need the right workwear on-site this summer 68 The technical team at Zano Controls give us the lowdown on the testing processes involved to check for lamp compatibility and performance of its products 70 The things that electricians should consider if they're to make the most of their customers' outdoor space

29

Why the industry needs more women

PROFESSIONAL ELECTRICIAN June 2021 3

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@proelectrician

pe@hamerville.co.uk

professionalelectrician

Editor’s Viewpoint

Meet the team Editor RICHARD BOWLER email: pe@hamerville.co.uk Editorial Assistant PATRICK SWAN email: pswan@hamerville.co.uk Digital Manager REBECCA MCGEOCH email: rmcgeoch@hamerville.co.uk Advertisement Manager ANTHONY SCOTT email: ascott@hamerville.co.uk Assistant Advertisement Manager IAN TURNER Design ADEEL QADRI Production Assistant KERRI SMITH Group Production Manager CAROL PADGETT Distribution Manager KARL CLARK Managing Editor TERRY SMITH Publisher BRYAN SHANNON Printed by: WALSTEAD PETERBOROUGH Published by: HAMERVILLE MEDIA GROUP Regal House, Regal Way, Watford, Herts, WD24 4YF Tel: 01923 237799 Fax: 01923 246901 Email: pe@hamerville.co.uk PROFESSIONAL ELECTRICIAN is the business journal for the electrical contracting industry. It is available to the trade at leading electrical wholesalers throughout the UK. © 2021

Subscriptions to PROFESSIONAL ELECTRICIAN are available.

Image References (Adobe Stock): Pg 35 Building inspection © F Pg 39 Number codes © EyeMatrix Pg 40 Assessing job © Auremar Pg 46 Continuous learning © Tasha Tuvanaga Pg 49 Light question © YY Department

Professional Electrician, Regal House, Regal Way, Watford, Herts, WD24 4YF

A ‘home’ run ou don’t have to be mad to work here – but it helps” … So says the old adage, and one which will certainly resonate with a good few who make their living from the construction sector, given all its intrinsically linked economic turmoil, endless red tape and customer/supplier challenges.

And, of course, that was long before all the collateral damage to potential earnings of a worldwide pandemic. It begs the question: was there a screw loose in the first place? Or does the industry itself drive these otherwise sane persons to the point of distraction?

Remarkably, it would seem, the destabilising events of the past twelve months have actually done nothing to dissuade budding entrepreneurs that their long-term future lies in the construction and electrical sectors.

In fact, a new survey by Circleloop confirms that specialised construction activities currently tops the list of the ten industries with the most active start-ups and new businesses, with an impressive 245,230 taking the plunge.

So, what’s fuelling this trend? There’s little doubt that the stay-at-home message has had a huge impact on the way homeowners now view their living spaces, and in this in turn has created a resurgence in DIY projects, which had previously been on a noticeable decline.

As a result, significant sales increases have been reported by most of the wholesale supply chains.

Of course, there is no way of knowing just how successful those improvements were in reality, but you can safely assume that a pretty large percentage were unmitigated disasters requiring professional assistance along the way. (see our Codebreakers and Caught on

Y

Richard B owler

Camera pages for further confirmation!)

In the short term this is good news for already established existing contractors, and the proliferation of home improvements has been a welcome shot-in-the-arm for all parts of the construction sector.

The key now, will be whether electricians can capitalise on this rare opportunity as the landscape changes once again moving forwards and presents more ways to add strings to your business bows.

Those who gain a good understanding of the way the market is heading – with renewables, EVs and ‘green’ technologies likely to be high on the agenda in the next few years – will be the businesses that can prosper the most from it all.

In this issue we’ve got a couple of great examples of electrical business owners who have put their time to good use during the pandemic and are growing their firms nicely, so we hope you can take some inspiration from them.

How do you like to consume Professional Electrician & Installer’s content?

We’re after a bit of a favour from readers as PE is conducting a little straw poll of the folk that read the magazine every month, and/or follow our various digital and social channels.

As has always been the case with PE, the thoughts and habits of our readers are what counts most, so we’re keen to understand further how you like to consume our content.

All it will take is a couple of minutes of your time, so please answer the survey via the link below when you get a spare moment in your busy schedules.

Have a good month and enjoy the issue.

ANSWER THE QUICK SURVEY AT: WWW.RDR.LINK/EB054

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news @proelectrician

For the latest electrical news visit www.professional-electrician.com

professionalelectrician

pe@hamerville.co.uk

Professional Electrician, Regal House, Regal Way, Watford, Herts, WD24 4YF

Rishi Sunak meets with industry to discuss low carbon heating Rishi Sunak, MP for Richmond (Yorks) has met with representatives from organisations with an interest in low carbon heating to help better prepare the supply chain for the changes which are set to take place over the next few years.

The meeting was arranged and hosted by GTEC at its training centre in the MP’s constituent area in Hawes, North Yorkshire. It allowed organisations to demonstrate their efforts to simplify the journey for installers looking to enter the low carbon heating market. From Awarding Organisation (LCL Awards) who develop qualifications that could be delivered by a training provider (GTEC Training) delivering courses to installers and preparing them for assessment by a certification body (NAPIT) in order to join a certification scheme (MCS).

This collaboration resulted from the Renewable Heat Installer Support Scheme (RHITSS). RHITSS offers vouchers to provide up to 70% off the cost of becoming a renewable heating installer, and proved to be immensely popular with 1,000 vouchers claimed within 10 days of the scheme opening.

The visit coincided with confirmation from Midlands Energy Hub and BEIS that the RHITSS scheme has had its deadline extended to 30th September. The extension was granted in recognition of the difficulties that some candidates have had in securing a place due to COVID restrictions (previously it was May 14th.)

With the Prime Minister’s announcement confirming the government will bring forward the current target for reducing carbon emissions by 15 years, setting in law the requirement to cut carbon emissions by 78% compared to 1990 levels by 2035 rather than 2050 – it is clear that this is an area of high importance.

Rishi Sunak said: “The RHITSS scheme has been a great success; GTEC has been able to pull together many different parts of the low carbon sector to deliver this ambitious programme very quickly. It’s been great to meet a local company playing their part in such an important national cause.”

TESP calls for more industry mentors The Electrotechnical Skills Partnership (TESP) is calling for people from all corners of the electrotechnical industry to donate just 45 minutes of their time to mentor a young person.

So far, The Youth Group has supported over 1.7 million young people across all sectors of UK industry. Under a new partnership, TESP is now working with The Youth Group to build a network of mentors with electrotechnical experience to inspire and inform young people about electrical opportunities.

The minimum commitment is to support just one 45 minute online mentoring session with a young person.

If you choose to continue as a mentor, you can speak to a variety of different job seekers and share your experiences and insights, or work with one individual and support them on their journey to develop and get a job.

As an added benefit, for each mentoring session carried out via The Youth Group, a tree will be planted in one of the National Parks across the UK as part of the ‘Net Zero with Nature’ programme.

Jack Parsons, CEO of The Youth Group, said: “I’m over the moon that TESP and The Youth Group are going to be working together to pioneer a new wave of mentoring in the electrotechnical industry. It’s so important that young people who want to get into this sector are provided with the hope, skills, and opportunities they need to reach their full potential in work” FIND OUT MORE ABOUT BECOMING A MENTOR AT: WWW.RDR.LINK/EB001 PROFESSIONAL ELECTRICIAN June 2021 11

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news

For the latest electrical news visit www.professional-electrician.com

Ovia introduces free lighting design service Ovia’s free lighting design service is available to electrical contracting companies and anyone involved in the specification and design of lighting and lighting control equipment.

The aim of the new service is to provide expertise in choosing the right products and solutions for a proposed scheme, ensuring full compliance with the relevant regulations and standards.

With all the information gathered, including drawings and specifications, a Lighting Design Proposal will be prepared. A schedule of lighting and lighting controls will be shared with the Ovia internal sales team who will prepare a quotation. The Lighting Design Proposal and prepared quotation will then be sent back to the Ovia sales team member and the quote will then either go through the wholesaler of choice, or the enquiry will be directed through one of Ovia’s supporting Elite stockists.

A dedicated lighting design page is now available on the Ovia website. This includes an easy to access lighting design files section, where lighting designers can download individual product files. All the lighting design files have been grouped into categories – commercial, domestic, floodlights, industrial, utility and emergency – with the relevant products listed under the category heading.

VISIT OVIA'S DEDICATED LIGHTING DESIGN PAGE AT: WWW.RDR.LINK/EB002

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@proelectrician

professionalelectrician

pe@hamerville.co.uk

Professional Electrician, Regal House, Regal Way, Watford, Herts, WD24 4YF

Bosch Professional ramps up #builtwithBosch campaign Bosch Professional UK is building on the success of its hugely popular #builtwithBosch campaign and taking it to the absolute EXTREME this year.

The new #builtwithBosch EXTREME programme sees Bosch offering a massive 500 tools throughout the year to be put through their paces by tradie testers, who will share short videos about real-life usage on-site. The best bit is that testers can then keep the tools free of charge!

All 500 tools are from the BITURBO Brushless range which brings together Bosch’s best battery (the ProCORE18V) with its best 1800W brushless motor. Delivering a superior range of lightweight, easy to handle, cordless tools that perform with the power of their corded equivalents and the convenience of cordless use.

There will be two further rounds of #builtwithBosch EXTREME throughout this year, which will be announced soon. Over the course of ten weeks, chosen testers will film two or three videos per week for Bosch Professional to share via its Instagram channel.

Kate Pritchard, User Marketing Manager for Bosch Professional UK, commented: “We’ve already built a great community of testers from the initial #builtwithBosch programme.

The user feedback benefits our R&D and it’s great to see the testers supporting each other with ideas and building their own ‘band of Bosch’ community.”

YOU CAN APPLY TO BE A BOSCH TESTER BY VISITING: WWW.RDR.LINK/EB003

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news @proelectrician

For the latest electrical news visit www.professional-electrician.com

professionalelectrician

pe@hamerville.co.uk

Professional Electrician, Regal House, Regal Way, Watford, Herts, WD24 4YF

Significant upturn in queries for NICEIC technical line As the final deadline for the new PRS legislation in England came into force on April 1st, calls to NICEIC and ELECSA’s technical helpline peaked at over 600 calls a day, a figure which is more than double the daily average seen during the same period last year.

The majority of the call volume came from contractors seeking clarity on the rules relating to EICRs and guidance on appropriate coding. In addition, there was also a significant increase in calls from landlords and letting agents who were again seeking advice on the rules, particularly concerning enforcement during the pandemic.

Sam Donaghy, NICEIC & ELECSA’s Technical Helpline Manager, said. “From the conversations myself and my colleagues were having, it was clear, despite the deadline being set in 2020, many landlords had left it to the last minute to comply. A situation which, of course, wasn’t helped by COVID-19.

“Many of the questions from contractors related to appropriate coding on EICRs which, as we all know, are not always straightforward, while landlords sought guidance on the legislation itself. In both scenarios, we signposted callers to the NICEIC website.

“Here we outlined the latest government advice which promotes the use of free materials such as Electrical Safety First’s Best Practice Guide 4 and the Wiring Regulations Advisory Groups (WRAG) FAQ’s.”

Issued by MHCLG in April, the latest government advice confirmed the planned implementation and timings of the PRS legislation would not change.

Recognising the impact of COVID-19, the guidance went on to discuss renting during the pandemic. In this general guidance, MHCLG called for a pragmatic risk-based approach to enforcement during COVID-19.

The advice also signposted Electrical Contractors and Landlords to resources relating to undertaking EICRs and correct coding. The two reference points given were Electrical Safety First’s Best Practice Guide 4 and the WRAG FAQs. “We welcome MHCLG’s promotion of the Best Practice Guide 4 and WRAG FAQs”, said Martyn Allen, Electrical Safety First’s Technical Director.

“If you're an electrical contractor undertaking electrical safety checks I urge you to download your free copy today.”

Aico launches online community

Electricians among the most in-demand professions

Aico has announced the launch of the Aico Installer Community, a connected online community built to support Expert Installers.

The community will provide a platform for electrical contractors to discover opportunities, interact and engage with one another to share knowledge and earn rewards.

It will offer opportunities for Expert Installers to network and connect with fellow professionals, participate in discussions and expand their knowledge. Members will be able to access the knowledge base within the community, view FAQs, how-to videos and new technical bulletins.

REGISTER YOUR INTEREST IN THE AICO EXPERT INSTALLER COMMUNITY AT: WWW.RDR.LINK/EB005

14 June 2021 PROFESSIONAL ELECTRICIAN

DOWNLOAD THE ESF BEST PRACTICE GUIDE 4 AT: WWW.RDR.LINK/EB004

A new study by Paymentsense has found that electricians are among the highest increase in-demand for job vacancies.

As the growing demand for installing new smart and green energy technologies rises, the need for the skilled trades people increases also.

A study by The Electrotechnical and Skills Partnership (TESP) demonstrated that between 12,500 and 15,000 skilled electricians will be needed over the next five years to accommodate forecasted growth.

When looking at the data pulled by Paymentsense, it is a clear reflection of the demand needed, as 492,926 roles have been advertised.

The most in-demand job roles were for couriers, as online orders reached a record high last year.

VIEW THE FULL STUDY AT: WWW.RDR.LINK/EB006

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COMMENT

Ben Curry, Owner of Electrical Innovations, tells us more about how his company put its time to good use over lockdown and why business is booming as a result.

“I WORKED ON THE BUSINESS, RATHER THAN IN IT!”

I

won't lie, the last 12-14 months have been pretty wild for us as a business.

If we cast our minds back to well over a year ago now, when the first lockdown originally kicked off, I genuinely had no idea how business might go for us. My team were furloughed and I found myself at home not knowing if or when we'd ever be returning to work.

During this period I decided that I'd make the most of some of the free time I had available and set about working ON the business, rather than IN it. The next five weeks saw me in the office working solidly on building a new website, recording YouTube videos on our CCTV and alarm systems offering, and ensuring we were not forgotten as a company.

I was determined that COVID-19 and its repercussions were not going to beat our company and we would use our time off to grow and develop.

Our small, local electrical business has boomed as a result.

Getting the basics right At the start of 2020 we employed one electrician, Colin, along with myself. Brad, our 2nd year apprentice, and my wife Kelly were then tasked with doing our office work and getting things moving with social media marketing.

Social media is a place that we've really ramped up our efforts so as to boost our company name in the local area, constantly putting out updates and ensuring the posts are interesting and engaging.

We focus on a good mixture of our electrical work, our lifestyles, photos of the team, the vans, along with funny and interesting things we find at jobs. We also make sure our presence is known on local social media platforms.

The part that has really rocketed our business, however, is the fact that we keep to the promises we make in our posts and marketing materials, such as:

● Answering the phone when it rings ● Getting back to customers when we

say we will ● On the spot quotes, or fast-as-possible

that customers really seem to appreciate and value. We ensure that we leave our customers with a clean and tidy home and, as importantly, a standard of work that they're happy with.

I believe that this attitude has largely contributed to the amount of work we're now seeing, as we're constantly recommended via word of mouth or through local social media sites. We've

turnaround times ● Highest standards of work ● Communication about all aspects of

the job ● Clean and tidy staff who turn up in

new, sign written vans wearing proper uniforms ● Insured and background checked.

Nice touches like the ever-present boot covers, face masks, PPE, carpet protectors and company mats placed down before our tool bags go on them are all things

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COMMENT

also gained hundreds of reviews across Google, Facebook, CheckATrade and other online referral platforms.

Growing the family

By August of last year we found ourselves in the position where we needed some extra assistance in the office to cope with the number of queries we were fielding.

Charlene, a part time PA, soon arrived to fill that role and it didn't take her long to settle into a permanent full time Office Manager position.

Two new electricians joined us a couple of months later, with Harley and Frazer starting on the same day. Ironically, both lads already knew each other from their college studies. Amazingly, we found that we were still struggling to keep up with demand so, just before Christmas, we added a second apprentice to the team.

electrical businesses, we've signed up for OZEV to install EV chargers under the grant scheme. We've also taken on additional training in CCTV, alarms, and further electrical qualifications.

Realising our potential When I look back to life at the time we originally started the business, the biggest hurdle was finding work and making sure we had enough to keep us ticking over. In the last two years the scales have tipped completely and my biggest challenge now is finding the right type of people to join our team, who share our values and approach to quality.

Over time, I've tried to build our company into the sort of place I'd loved to have worked as an employee: ● Local and interesting work, carried out

for good people New year, new challenges The enforced 3-4 month lockdown that was re-introduced at the beginning of this year obviously brought with it some significant challenges, including team members having to isolate from one another, panicked late night calls from customers who'd had to cancel jobs due to being symptomatic and also having ours and our customers' homes transformed into home schooling hubs.

That said, we've followed all the guidance properly and, as per the first lockdown, we made sure we put our time to productive use by building a new office and purchasing two new vans for the business. It was an amazing feeling to take delivery of a brand new 21 plate Transit Connect and to subsequently pass it on to one of the team. In March we even took on our 9th team member – Sean.

To make sure we're up to speed and ready to take advantage of new business opportunities that are available to

20 June 2021 PROFESSIONAL ELECTRICIAN

● Overtime available if you want it, but

not expected or required ● No working away from home ● The opportunity to learn and advance

in your career ● Use quality brands and products only ● Smart, branded vans, workwear and

tools/equipment.

The family has just grown by two more bodies, as we've recently appointed a security engineer and an electrician's mate/adult improver, both of who started last month.

We can always be better As the business owner I reflect and consider every day how we could do a better job of increasing the service levels we offer, such as faster response times or fitting in a job for a customer that bit sooner, and much of this is based on finding the right individuals that can help to grow the business.

Employing and investing in apprentices is a big part of this future plan. If we were to never hire an 'experienced' individual again, and instead introduced two new apprentices to the business each year to replace the ones that are becoming qualified, this would represent a really strong, organic growth in itself.

Obviously it can be difficult for a small business to cover the overheads associated with employing an apprentice, but I strongly feel that they're required and are going to be so important to the future of not only my own business, but the electrical industry in general.

The last 14 months have clearly been the most difficult that many will experience in their lifetime, and every business will have been affected in different ways. For us, however, that period has ended up being one of the most exciting and prosperous in our company's relatively short lifetime.

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COMMENT

Mick Fitzgerald, Director at Options Skills, discusses the multiple benefits of recruiting a trainee, as well as the skills you need to become a successful mentor.

ARE YOU MEANT TO BE A MENTOR?

I

n 2020, the turbulent and unpredictable financial strain in the UK saw many businesses pausing their recruitment plans. As lockdown eases and the economy begins to move again, aspirational electrical businesses can now look to get their recruitment and growth strategies back on the right track.

How do you know if/when it’s the right time to grow your team?

Your work/life balance isn’t right You may be finding yourself spending more time ‘on the tools’ than you’d like to, or perhaps you want to spend more time working on your business to develop it further.

You want to keep up the momentum of growth in your business Has your business started to rapidly grow, and you want to continue this success? You may want to think about investing in team growth to increase your capacity so you can cater for more customers at once.

What kind of investment does it take to grow your team?

In the UK, the average cost per hire is around £3,000. When using a recruitment agency, this can be even higher, with the fee generally at around 20-30% of the employee’s salary. For smaller electrical businesses, these costs

may deter team growth.

An electrical trainee – someone who is looking to develop their practical skills portfolio to fully qualify – is a great addition to any electrical team.

This is also a cost-effective recruitment strategy, as some training providers will match you with the right trainee for your business, without any fees.

As an experienced electrician, it’s likely you already have all of the skills you’ll need to become a successful mentor to a trainee. These include: 1. Experience and knowledge of the trade Your first-hand experience means you have all the ‘on the job’ skills that trainees need to be able to build their practical

You’re starting to think about retirement If you’re planning for retirement – even if that’s in 5 or 10 years’ time – you may be wondering about the future of your business once you hang up the tools. Recruiting a junior team member can help you to build your business’ legacy, giving you peace of mind that your company is in safe hands if and when you’re ready to leave.

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COMMENT

PRIZE DRAW

portfolio and add to the theory they’ve learnt in the classroom.

2. Commitment to the trade If you’re enthusiastic about your work, you’ll find it more enjoyable to share your craft with a trainee, and your passion will inspire them to feel the same.

3. Patience and understanding Trainees want to learn and develop. So, like any teacher or mentor, patience and understanding are crucial skills. It’s an ongoing process, but trainees are likely to pick up key skills quickly and apply them to their work.

4. Ambitious If you’re committed to business growth, you’ll be keen to work closely with trainees to develop their skills and ensure they offer great service to all of your clients.

So, what’s in it for you?

Trainees are committed to personal growth As they're funding their own learning, trainees are dedicated to their own professional development, making them a committed and reliable addition to your business.

Adult trainee means adult attitudes Often, electrical trainees have chosen to pursue a new career path, so they should have lots of previous work experience.

This means they're likely to have a mature attitude when it comes to working life.

The right cultural fit Adult trainees are likely to have a range of soft skills, and some training providers offer additional support to develop these further.

Increase your capacity A larger team means a wider reach, allowing you to service more clients. You can then use the additional income to invest in further business growth.

Leave a learning legacy It gives you an opportunity to make your mark on the industry by training the next generation of trades professionals and leaving a legacy that lasts way beyond your retirement.

Could you mentor a budding electrician?

As an experienced tradesperson, you have a wide range of knowledge and experience which you can share with your junior team members and trainees to grow their skills portfolio and help them to develop into both successful professionals and assets for your business.

GET MORE INFORMATION ABOUT BECOMING A MENTOR AT: WWW.RDR.LINK/EB007

24 June 2021 PROFESSIONAL ELECTRICIAN

W IN

WIN A C.K

MIGHTYRODS TOOLBOX SET

Access all areas with these greats sets – five are up for grabs!

C

.K offers a fantastic range of MightyRods PRO Cable Rods which feature the ultimate in cable rod technology and are 100% splinterproof, thanks to their unique SplinterShield coating.

The C.K MightyRods PRO Toolbox Set 3.3m (T5419) – available to win in this competition – offers all the features and benefits of the full length MightyRods PRO kits, in a compact handy toolbag size, making them perfect for cable installation in tight access situations.

Supplied in a storage tube sized to fit tool boxes and bags for quick and easy use, the set can be easily transported and includes 10 x 33cm rods, which, when combined, create a total length of 3.3m, offering a convenient and robust alternative to carrying full length rods.

The 6mm rods feature SplinterShield – a significant advancement in cable rod technology – the durable, 100% splinterproof coating fully encasing the inner fibreglass rod to prevent harmful and painful splintering.

‘Mighty-Fix’ zinc plated steel connectors feature a slimline design and are glued, indented and crimped, enabling them to withstand up to 275kg of tensile pull strength.

This versatile toolbox cable rod set also includes a 5mm thread adapter and cable hook, a 190mm coiled steel flexi lead and a mini eye ring, providing all the solutions needed for even the most difficult of cable routing tasks.

HOW TO ENTER ENTER THE FREE PRIZE DRAW BY FILLING OUT THE CONTACT FORM AT: WWW.RDR.LINK/EB008 Deadline for entries: 10/07/2021. Usual T&Cs apply.

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SPECIAL REPORT

WIRED AND WONDERFUL We catch up with Danny Edmonds, Co-owner of Prowired Electrical Contractors, to find out more about why teamwork really is dreamwork as the business continues to prosper.

Tell us a bit about the history of Prowired Electrical Contractors and how the business originated I used to work for (now business-partner) Nathan, and over time we built a very good relationship which was primarily based on having full trust in one another.

Nine years ago we had a discussion about whether we could potentially set up a business together. It didn't take long for us to agree that it was the right thing to do and, before you knew it, we'd started our own company.

We both had a vision that Prowired should be heavily brand-focused and recognisable, with an onus on getting the right clients and servicing them correctly.

As with most business owners, we had to make some big sacrifices early on to enable the company to get where it is today, but it’s definitely been the best decision we’ve made.

Prowired has become the company we dreamed of and that’s also down to the support of our staff, wholesalers, subcontractors and clients. It wouldn’t have happened without everyone’s involvement.

26 June 2021 PROFESSIONAL ELECTRICIAN

How many individuals are employed within the business?

We employ 14 site-based members of staff and will be looking to expand this to at least 20 before the end of the year. We have a further eight employees working in the office, which we hope to increase to 10 in the near future, plus we employ our own health and safety consultant and a specialist HR company to look after all of the staff.

What type of work do you primarily undertake?

Our main bread and better has always been new build work, however in the last couple of years we’ve been undertaking more industrial jobs, so we’re now capable of taking on work in domestic, commercial and industrial environments.

How do you make your business stand out from the crowd?

Branding is something that we're into big time. I feel that many electrical firms are still a bit old fashioned in the way they look and work, so we want to make sure our company is modern and fresh. I also want

to be different in the ways that we look after the staff on-site and in our office, and to build a culture that teamwork brings everything together. To me, this is the most important part of the business.

026_PE_JUNE21_Layout 1 05/05/2021 20:35 Page 27

How do you ensure your staff are up-to-date with training and development?

We have test rigs in our office for the apprentices to learn from, not to mention the support from the team in the office and the knowledge that myself, Nathan and our Projects Manager, Pat, are able to pass on.

We regularly check that qualifications are up-to-date and, if not, we support the staff to get to the end result they’ve worked hard to achieve. We also use a dedicated specialist training provider which gives us the peace of mind that our employees will receive the correct training.

How have you reacted and adapted during the pandemic?

The pandemic taught us to be dynamic and structured as a business. We put a lot of time into working on the infrastructure of the company early on during lockdown, plus I’ve spent the last year building a Prowired App which all our engineers will be using every day.

This is to ensure site-based staff communicate better with the office and the rest of the team to bring the business together. During the second lockdown we had more of a focus on pushing and utilising social media, with all of the team

buying into the process and becoming a part of the social experience.

Where do you see the business (and the electrical industry) moving in the future?

We believe that there will be lots of opportunities for electrical businesses moving forwards, with renewables taking a much larger role. We’re already an MCS accredited installer and an OLEV approved contractor, and see things like industrial power stations, utility industries, EV charging stations (domestic and commercial), commercial and industrial lighting, maintenance shut down, battery storage and PV installations as potential growth areas for our business.

Do you have any funny/interesting stories that the company can share?

When I mentioned to the team about taking part in the social media experiment, their faces were a picture! I think they thought I was crazy, but it is something that is working to raise awareness and they’ve all brought into it now.

Can you offer any words of wisdom for fellow electrical business owners?

Focus on structure, structure and more structure – how effective your business

will ultimately be is going to be down to this. It takes a lot of work to put a proper structure and processes in place but when you’ve achieved this the feeling (and results) are great. All of the effort that we’ve put in from every part of our team has definitely helped us.

Building a business is not just about one or two people – it’s about the whole team, as without them you’d be nothing.

Create the unity and culture that you want within your business and the rest will naturally come together.

PROFESSIONAL ELECTRICIAN June 2021 27

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SPECIAL REPORT

CHANGING THE PERCEPTIONS

Brett Smyth, General Manager of Ideal Industries EMEA, discusses the need to recruit more women to the sector and the challenges currently associated with attracting them.

I

t’s not that long ago that, no matter who you talked to, you’d rarely meet someone who knew a female electrician working ‘on the tools.’ But times are changing, and women make up an estimated 3% of electricians working in the UK currently.

Things are only changing slowly, however. That 3% is still a tiny proportion of the trade and, at a time when we need to boost the number of skilled electricians to enable the roll out of electrical vehicle infrastructure, renewables technologies and smart buildings, it's indicative of a key challenge the industry faces.

If we need more electricians but most of the sector’s new recruits are being drawn from just half of the population – the male half – we’re missing a trick. And, unfortunately, the challenge is founded on a 'chicken and egg' conundrum: with so few women working as electricians, the next generation of potential female professionals often perceive electrical installation as a male preserve. As a result, the industry remains lacking in female role models and the slow pace of change remains frustratingly slow.

That’s why, when we came across Amy Barratt-Singh, a woman who retrained as an electrician – at her own expense – just four years ago, we were so impressed with her that we offered her some samples of our products and a sponsorship opportunity.

Why? Because she's exactly the type of electrician the industry needs to inspire both women and men – including those already working in the sector and the next generation of professionals.

Having been discouraged from following her dream as a young school leaver, she returned to education aged 28 to retrain at her own expense while continuing to work as she learned. Now, just four years later, Amy has recently been promoted to Contracts Manager by her employer, Synergy Smart Homes, where she manages a team of four electricians.

It’s not just the way that Amy is progressing her own career that's so impressive, it’s also how hard she’s

working to inspire and encourage others.

Active on both Instagram and YouTube, Amy is helping to show other women how rewarding a career ‘on the tools’ can be in both electrical and other trades, as well as encouraging school leavers into vocational training.

Let’s pick up the pace With role models like Amy inspiring a new generation of potential electricians, it seems that the industry is making progress in attracting more women. Ideal Industries is keen to play a part in driving positive change too so that we can nurture talent and encourage a more diverse profession.

PROFESSIONAL ELECTRICIAN June 2021 29

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SPECIAL REPORT

AN INTERVIEW WITH AMY What made you want to become an electrician?

My grandad was a plumber and, as a kid, I loved helping him do jobs. Through this, I developed an enjoyment for learning practical skills.

My two brothers grew up to be electricians but, as a girl, I wasn’t encouraged in that direction at school or at home. I didn’t really consider it as an option, so I ended up working in education.

It was only when I was travelling for a year that I was able to step back and think about what I wanted from a career.

Travelling also gave me the confidence to go for it, and I needed that because I had to pay my own way as a mature student and deal with being the only woman on my course.

Were your friends and family supportive of your choice?

There was a real male/female split in the response to my decision to retrain as an electrician. My mum was encouraging and my female friends were very supportive because they knew I really wanted it.

What did you find most challenging about training as an electrician?

Getting people to take me seriously was quite challenging at first and, because I had bills to pay, despite being in college 25 hours a week, I was working as many hours as I could to pay for my course and my living expenses too. That commitment is what helped me to gain the respect of

30 June 2021 PROFESSIONAL ELECTRICIAN

my peers though, so it was worth it.

And the most rewarding?

Doing a job that I love! I’ve worked really hard from the outset and built on my initial decision to invest in myself with retraining by investing in tools and a van to boost my career.

How important has the Ideal Industries sponsorship been to you?

It’s great to have a globally-recognised electrical brand support and acknowledge what I’m doing to encourage others. I’ve used a few of the products and love them, especially the FT-45 Feed Thru modular plug system for data terminations, which I’ll be using a lot of now I’m working for a smart homes specialist. I’m excited to see where the relationship with Ideal will go and it’s great to know that the company is getting behind the need to encourage more women in the sector.

What else do you think can be done to encourage more women into the sector?

The best way is to show them images of people like them doing the job. That’s why I'm so active on social media. Companies can also help by putting women on their website and in the marketing materials so that the idea of women working as electricians becomes a normal, accepted career choice.

Why did you start your YouTube channel?

I started the channel and my Instagram

to encourage other women to work as electricians and in the trades. I’m really proud to be inspiring others and it’s so rewarding when I’m contacted by women who just need a role model to help them believe in themselves and follow their dream.

What would your advice be to other women who want to work in the electrical sector?

I would definitely tell them to go for it! I love my job and have already progressed beyond where I anticipated in my career, but I can see more potential for career development ahead.

I’d advise women to be confident, and committed to their goals, though. I wish I’d been tougher in my first job as an electrician because I did encounter some prejudice, and I was so taken aback by how hostile some of my colleagues were to having a woman on the team that I didn’t respond in the way that would have earned me respect and acceptance a lot sooner.

The other piece of advice I’d give to anyone, male or female, is to invest in your career development for the long term.

Work hard, get as much experience as you can by working in different environments and with different people that you can learn from.

And, of course, if an opportunity comes your way, whether it’s sponsorship from a company like Ideal, a chance to learn a new skill or a promotion, grab it with both hands!

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THE

CODEBREAKERS GRAHAM FENNING: UNFORTUNATELY, THE INDIVIDUAL THAT INSTALLED THIS BOX DIDN’T TIGHTEN UP ALL THE TERMINALS. Another popular contender on the EICR front is cables showing thermal damage close to a termination, RCD, RCB, RCBO, or MCB. There can be multiple causes, but in this case it initially appears as if the conductor hasn’t been adequately torqued down into the MCB terminal cage.

Not torquing conductor terminals correctly can lead to overheating, often caused by the subtle expansion and contraction of a conductor under load, giving a high resistance join which can cause small arcs. This culmination of events can then cause carbon build-up, which exasperates the high resistance of the termination, and we're left with the conductor in the picture, along with a damaged MCB. However, in this case, I feel the terminal may have been tightened down, just not on the copper conductor. We can see a pronounced indentation in the insulation about 3mm up from the copper-stranded conductor. This is strong evidence that the MCB terminal cage has trapped the insulation, and the copper conductors have never been adequately held.

Where the stranded conductors haven't been held adequately, they're free to expand and contract under load and increase the already high resistance joint, which has led to the thermal damage in the photo. Great care must always be taken when terminating conductors to make sure they're the part that is actually in any termination and not the insulation surrounding them. Given the finding here, it would be strongly recommended that all of the CU terminations are checked, as there appears to be a significant amount of insulation deep inside the other MCB conductor termination points.

The Observations, Regulation infringements and Codes applicable to this observation would be: Conductors not adequately terminated for the OCPD, causing thermal damage

The remaining conductors may not be correctly torqued/be terminated by their insulation

GET THE BOOK AND CRACK THOSE CODES!

134.1.1, 134.1.4, 526.1, 651.2 (ii)

C2

134.1.1, 134.1.4

FI

Updated for BS 7671:2018, NAPIT’s EICR Codebreakers publication is purpose-written to aid contractors, inspectors and clients, and now includes updates to align with the 18th Edition of the wiring regulations. A 2018 Professional Electrician & Installer ‘Top Product’ award winner, the book is the perfect technical aid for electrical professionals and their customers.

32 June 2021 PROFESSIONAL ELECTRICIAN

032_PE_JUN21_Layout 1 04/05/2021 23:35 Page 33

Need help with cracking those all-important EICR codes? Every month the technical team at NAPIT will be studying your latest ‘Caught on Camera’ photos and offering advice on the next steps, should you find a similar installation. If you want the team at NAPIT to help crack your codes then send your pictures through to us at: pe@hamerville.co.uk

DEAN WILKINSON: I WAS CALLED OUT TO A HOUSE EXPERIENCING FLASHING LIGHTS, FOUND SEVERAL LOOSE CONNECTIONS WITHIN A NEWLY INSTALLED CONSUMER UNIT AND THIS MESS OF CABLES ABOVE IT. Unfortunately, we usually see this issue with two types of reasoning: 1. It was carried out using either unskilled operatives, or 2. It was carried out by skilled operatives using a cost-based approach.

Either way, it is a poor and unsatisfactory installation. One of the key issues is the lack of appropriate enclosure and support for the wiring system, which leads to mechanical stress on the terminations in the connector blocks, which can (and has, in this case) lead to loose connections.

Flickering lights are only a minor indication and, in many cases, loose The Observations, Regulation infringements and Codes applicable to this observation would be: terminals can/have caused overheating, which has led to a fire. Along with the lack Access to Live parts at connector block terminals: terminations C1 416, 526.5 not made in an acceptable enclosure of adequate support for either the cables or the terminal block, the connections haven't been made inside a suitable enclosure.

Wiring system not adequately supported throughout its length, strain 134.1.1, 522.8.5, C2 on terminations 526.6 Basic insulation of the twin and earth cable isn't taken into an enclosure and has no mechanical protection. Above all of C2 Basic insulation not taken into an enclosure 134.1.1, 526.8 this, the live conductors are all accessible, albeit by a smaller object, which is seen as access to live parts and attracts a C1.

C2 Conductor terminals likely to be loose 134.1.1, 134.1.4 By working on one circuit individually, the inspector runs the risk of disturbing an adjacent circuit. This could cause them EICR of the electrical installation 1651.1 FI harm directly if a live conductor breaks free installations should be checked regularly, and any new of a terminal and then becomes an exposed live part, or others in installation work, maintenance, or alterations, be carried out by a the installation indirectly through fluctuations in power through competent person using the correct materials and methods. loose connections. In this case, the inspector must assess their Further investigative work in the form of an EICR would be safety and that of their team to ensure that they're not at risk by carrying on with the inspection without modifying their approach. required to ascertain if the remainder of the electrical installation is in a similar condition.

This type of observation is precisely the reason why electrical

The 18th Edition Codebreakers publication is priced at £17.99* (members) or £19.99* (non-members). Hard copies and digital issues are available. * Prices exclude VAT, postage and packaging

ORDER YOUR COPY OF NAPIT CODEBREAKERS BY VISITING: WWW.RDR.LINK/EB009

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TECHNICAL & TRAINING

VERIFICATION OF AUTOMATIC DISCONNECTION OF SUPPLY

This article discusses the significance of the change introduced by the 18th Edition of BS 7671 to the verification required for the protective measure automatic disconnection of Supply (ADS).

A

DS, is the most common protective measure used to provide protection against electric shock for low voltage installations. For the purposes of verifying ADS, the earth fault loop impedance (Zs) of each circuit that relies on ADS is normally determined by testing.

However, as discussed in this article, for some installations, particularly those of domestic premises where most, if not all, final circuits are provided with RCD protection, Zs does not need to be determined in order to verify ADS. The purpose of ADS is to ensure that, in the event of a fault of negligible impedance between a line conductor and an exposed-conductive-part or protective conductor, the protective device will

automatically disconnect the circuit within the appropriate disconnection times of Chapter 41 of BS 7671.

Table 41.1 gives the maximum disconnection times for final circuits having a current rating not exceeding: ● 63 A containing socket-outlets, and ● 32 A for those supplying only fixed

connected current-using equipment (411.3.2.2).

Disconnection times relevant to single-phase AC circuits are shown in Table 1.

Earth fault loop impedance testing Earth fault loop impedance (Zs) testing is

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the most common method used to verify ADS for overcurrent protective devices.

The purpose of this ‘live’ test is to confirm that, under earth fault conditions, the magnitude of fault current (earth fault loop current) as illustrated in Fig 1 will be sufficient to disconnect the protective device within the appropriate disconnection time, see Table 1.

For these purposes, the measured value of Zs should not exceed the maximum value permitted by the manufacturer of the protective device, taking into account any adjustment for difference in temperature between design and test values.

Where required, verification of ADS

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Table 1. Maximum disconnection times applicable to single-phase AC circuits

PROFESSIONAL ELECTRICIAN June 2021 35

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TECHNICAL & TRAINING

Fig 1. Earth fault loop current (TN-S earthing arrangement shown)

may be confirmed by comparing the (corrected) measured impedance values against those given in the relevant tables contained in Chapter 41.

For example, from Table 41.3 the maximum permitted value of Zs for the 6 A type B (BS EN 60898) circuit-breaker shown in Fig 1 is 7.28 Ω.

Therefore, to verify that under earth fault conditions the device will disconnect the circuit within the required time (0.4 s given a TN system), the measured value of earth fault loop impedance shouldn’t exceed: 7.28 Ω x 0.8 = 5.82 Ω Where impedance measurements are made at ambient temperature, the applied factor 0.8 takes account of an increase in resistance of conductors with the increase of temperature due to load current, Appendix 3 of BS 7671 refers.

Whilst the verification methods described should continue to be used appropriately where fault protection is provided by an overcurrent device, where an RCD is installed upstream of the protective device, Regulation 643.7.1 permits a different approach to be used to verify ADS. Regulation 643.7.1 At first glance, the requirements detailed for verifying ADS for both TN and TT systems in Regulation 643.7.1 may appear to be no different than those previously detailed in Regulation 612.8.1 of the seventeenth edition of BS 7671. However, Regulation 643.7.1 includes the following statement which is applicable for both TN and TT systems: ‘Where the effectiveness of the protective measure has been confirmed at a point located downstream of an RCD,

36 June 2021 PROFESSIONAL ELECTRICIAN

Fig 2. Verifying ADS for typical domestic installation

the protection of the installation downstream from this point may be proved by confirmation of the continuity of the protective conductors.’

Considering the requirements of BS 7671 for additional protection, especially those relating to cables concealed in walls, generally all final circuits installed in domestic premises will be protected by RCDs having a residual current rating not exceeding 30 mA. Typically, this is achieved by a consumer unit having a dual RCD configuration and, increasingly, by the use of RCBOs protecting individual circuits.

Therefore, where continuity of protective conductors is verified as required by Regulation 643.2.1, ADS for the final circuits connected downstream of an RCD can be confirmed by verifying the effectiveness of the RCD. For a typical domestic installation as shown in Fig 2, a 30 mA RCD will provide additional protection for a number of final circuits. Where continuity has been confirmed as part of the dead testing completed for initial verification and the installation is energised, an external earth fault loop impedance test (Ze) should be carried out, normally at the consumer unit intake, to verify the protective measure upstream of that point, that is to confirm that the installation is connected to Earth and the loop impedance is appropriate for the Earthing arrangement (TN-S in the case of Fig 1).

However, conducting earth fault loop impedance tests downstream of this point is unnecessary, because ADS for the final circuits shown in Fig 2 is achieved by verifying the effectiveness of the RCD. Whether an RCD is installed to provide fault or additional protection, it must be

tested to verify its effectiveness, and where an RCD satisfies the disconnection requirements for additional protection, it will also satisfy the requirements for fault protection. An RCD installed to provide additional protection must disconnect within 40 ms (See note to 643.8), whereas an RCD installed to provide fault protection must disconnect within the relevant time stated in Chapter 41 of BS 7671 (see Table 1 of this article).

Where a circuit, such as a distribution circuit, is provided with fault protection by an overcurrent device only, the verification for ADS requires the earth fault loop impedance to be determined at the furthest point of the circuit.

However, where an RCD is connected upstream of an overcurrent device, as shown in Fig 2, the verification for ADS should be provided by testing the effectiveness of the RCD. As such, there is no reason to determine the earth fault loop impedance of the circuits, Zs. The purpose of the RCD test is to verify that the RCD will disconnect within the required time. The test performed on each RCD should be conducted at the most convenient place closest downstream of the device, such as at a socket-outlet.

The measured reading for each RCD tested should be recorded in the appropriate column on the ‘Schedule of circuit details and test results’, which forms part of NICEIC and ELECSA certificates.

For the column entitled ‘Maximum measured earth fault loop impedance’ not applicable ‘N/A’ should be recorded.

Summary As discussed in this article, where an RCD is connected upstream of an overcurrent device, we can rely on the RCD, subject to the verification described, to provide ADS. Where this is the case, performing earth fault loop impedance tests on the circuits connected to this RCD would be unnecessary and should be avoided, particularly considering the requirements of the Electricity at Work Regulations 1989 (EWR) regarding unnecessary live testing.

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PRIZE DRAW

W IN

ASK OVIA

®

The column where you get to put your lighting questions to the Head of the Ovia Lighting business, Mike Collins, and his team of experts.

Q: WHAT IS UGR<19 AND WHY IS IT IMPORTANT? UGR is the metric for defining the level of discomfort glare for interior applications. Discomfort glare is a feeling of visual discomfort from a light source, the level of which is influenced by factors such as:

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colmore’s comprehensive new Click Smart+ range of smart products gives installers the opportunity to boost their business with an enhanced smart home offering that will deliver a complete connected home experience to householders.

Designed to simplify and streamline connected home products – lighting controls, smart sockets, security cameras and sensors – the Click Smart+ range utilises Zigbee technology – one of the most widely adopted smart home communication protocols.

Zigbee certified devices require the Click Smart+ Hub and communicate with each other using a mesh network which creates multiple pathways for the connection of multiple smart home devices without compromising signal and communication range.

A key benefit of Zigbee and the new Click Smart+ range is that there is no requirement for a signal repeater, as all the hard wired devices have repeaters built in.

Click Smart+ has at its core accessibility and simplicity for the installer and end user and is designed to bring convenience, comfort, security, energy saving and more control in the home.

Installation is simple and flexible, with no additional cables or wall cutting required, making it ideal for existing or newly constructed buildings.

The bespoke Click Smart+ App gives householders ultimate control of the smart devices, which can also be operated through voice control in conjunction with a smart speaker.

The Click Smart+ connected home products range currently comprises the Smart Gateway Hub – the control centre of all Zigbee connected devices – 1 and 2-gang smart sockets, a plug-in smart socket, switching and dimming receivers, camera, PIR sensor, window and door sensor, plus a temperature and humidity sensor.

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The brightness of a luminaire (lumen output) The mounting height of luminaires The number of luminaires in an area/room/workspace The décor of an area/room (room reflectance)

The best way of avoiding discomfort glare is to provide a luminaire with anti-glare properties. The anti-glare properties can range from controlling the direction of light emission to diffusing the emission of light, and will have the glare performance calculated when testing the luminaire.

The values of UGR range from 13 to 30. The lower the UGR value the less discomfort there will be. Guidance is given on the maximum UGR values acceptable for certain applications. For instance, the maximum UGR advised for offices is UGR<19. This guidance can be found in either BSEN12464-1 or the SLL Code for Lighting.

The overall UGR value can be determined when using lighting design software such as Relux. This is simply done by combining the glare performance of the luminaire with the room characteristics. The calculation is carried out from an observer position such as a desk/workspace.

We've seen a lot of demand for our range of Inceptor Slate TP(a) Backlit Panels recently. With a low, <19 UGR diffuser, they're suitable for a range of installations and working environments, featuring a pre-wired push-fit 3-Pole Flow connector to ensure quick and easy installation.

Thanks to Jason Wood at AJ Electrical Services for this month’s query. A special edition Ovia travel mug is on its way to him!

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TECHNICAL & TRAINING

Gary Parker, ECA Technical Manager, gives an overview of the codes that make up those all-important Electrical Installation Condition Reports.

E

CA’s technical experts are often quizzed by members about the coding on electrical installation condition reports (EICRs). Most commonly, we're asked about which codes should be applied to specific faults during inspections of existing electrical installations.

A huge number of factors can impact an inspector’s decision-making process when drawing up an EICR, so it's no wonder they can sometimes be a source of confusion.

For a deeper dive into the rationale behind the different codes when undertaking an EICR, read on…

Who decides what codes to assign?

The inspector is the only person who can make an informed decision about what code is suitable in any given situation. This is because they're on-site and can see any defects first-hand, and therefore make an

A GUIDE TO EICR CODING informed call on how safe an installation is.

As an aside, it's important to note that any item raised should be set against the requirements of the Wiring Regulations (BS 7671:2018) – not against the inspector’s personal judgement.

Is it a type of risk assessment?

Indeed it is. When considering what code is relevant to any given situation, the inspector needs to consider the environment and the potential risk of damage or injury.

So, simply saying that scenario ‘x’ results in outcome ‘y’ isn't always suitable.

A nuanced decision-making process is required. To do this, we must first look at what the codes actually mean: C1: Danger present. Risk of injury.

Immediate remedial action required.

In this scenario, there is an immediate danger of shock or fire to persons,

property or livestock.

C2: Potentially dangerous – urgent remedial action required.

In this scenario, there is a fault that could potentially become dangerous (a hazard), but another fault or foreseeable action must occur in order for danger to arise.

C3: Improvement recommended.

In this scenario, there is a defect against BS 7671, but it doesn't present any immediate or potential danger to people or property.

FI: Further investigation required without delay.

In this scenario there is an electrical issue, but additional time is required to ascertain what this is.

PROFESSIONAL ELECTRICIAN June 2021 39

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TECHNICAL & TRAINING

Decisions, decisions The 'decision' tree for selecting an appropriate code during an EICR (the concept of which, we're about to explain) expands this further.

Codes with consequences It's extremely important to understand the consequences of any code raised during an EICR. For instance, both a C1 and C2 result in an ‘unsatisfactory’ outcome.

Therefore, overzealous use of these codes can potentially cause unwarranted disruption to the client, their building and possibly their business.

An example: if an installation is found to be lacking RCD protection for socket outlets, most guidance would recommend a C3 code. Should a contractor decide to instead raise a C2, then the client could be looking at a significant cost or inconvenience.

Of course, BS 7671 does not account for cost, and cost most certainly should not dictate decisions concerning electrical safety. But the implications of getting a code wrong, whichever way it

40 June 2021 PROFESSIONAL ELECTRICIAN

may be, can be evidently significant.

Additionally, an inspector should not reduce a code from a more serious to a lesser code just because it is the whim of the client. The inspector has been employed as an expert in electrical safety and shouldn't let their decisions become compromised by any external influence.

It's essential that the inspector be well-versed in the requirements of the latest version of the Wiring Regulations and offer appropriate codes for each defect. If need be, before raising a coded item, the inspector should always be in a position to reference a BS 7671 Regulation number on the issue, if challenged.

Where further investigation is required, this will also result in an unsatisfactory report as the inspector has highlighted a safety issue, but requires additional time to clarify the details.

Only defects against BS 7671 should be recorded The EICR is aimed specifically at defects against the requirements of BS 7671. The inspector shouldn't raise a code against defects noticed against other British

Standards, however they're at liberty to raise comments or notes about other issues or defects and inform the client.

Take, for example, defective emergency light fittings. If they don't present any electrical hazard to the user, then they're effectively safe and therefore shouldn't appear as a coded item on an EICR. However, this scenario may show a departure from BS 5266 and, in this case, it may be useful to inform the client of this situation on a separate document.

The final decision Of course, guidance material can't take the place of the skill, knowledge and experience of the inspector. The ultimate decision is down to them.

The recognised industry guidance is there, but only as a guide, and it can certainly be deviated from should the inspector be able to suitably argue the reasons for it.

GET MORE TECHNICAL SUPPORT AND GUIDANCE FROM THE ECA AT: WWW.RDR.LINK/EB014

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TECHNICAL & TRAINING

RCD RISK ASSESSMENTS NAPIT’s Technical Manager, Trevor Milner, discusses additional protection for socketoutlets and risk assessments.

Initial installation BS 7671:2018 introduced a provision in Regulation 411.3.3, which permits an exception via a documented risk assessment, for RCD protection of socket-outlets, should the electrical installation designer, client, responsible person or duty-holder determine it is not necessary.

Where we refer to the electrical installation designer, this is the person designing the original installation or any additions or alterations, and in doing this must have communicated with the client the requirement for any risk assessment, in order to understand fully their business needs.

Regulation 411.3.3 requires an RCD, with a residual operating current not

exceeding 30 mA, be used to provide additional protection for: (i) Socket-outlets with a rated current not exceeding 32 A (ii) Mobile equipment with a rated current not exceeding 32 A for use outdoors There is an exception to 411.3.3 (i) which permits when a particular requirement is met or needed. The exception states that: “Other than for an installation in a dwelling, a documented risk assessment determines that RCD protection is not necessary.”

It is also worth noting that BS 7671:2018

It is the responsibility of the client, duty-holder or responsible person to carry out a risk assessment 42 June 2021 PROFESSIONAL ELECTRICIAN

also removed the ability to use a suitably identified and labelled socket-outlet for a specific item of equipment.

When we look at the permitted exception, 411.3.3 (i), we can see that if a risk assessment is carried out, dependent on the outcome, the additional protection by an RCD ≤ 30 mA may be relaxed.

Where the installation is a dwelling, however, the requirement for additional protection by an RCD is mandatory, and cannot use a risk assessment.

The important thing to remember here is, who should do the risk assessment?

Regulation 411.3.3, Note 2, refers to Appendix 2, paragraph 11, which advises that any risk assessment for BS 7671 should involve an appropriate electrically skilled person. This doesn’t mean that they are solely responsible, or that this type of person should carry out any risk assessment, it merely states that they should be involved.

The electrical installation designer, client, responsible person or duty-holder should have knowledge of the installation’s use in order to carry out an effective risk assessment.

Where this is not the designer or installer, the client, duty-holder or responsible person, may take the advice or any information given to them by the circuit or installation designer.

In all cases, however, it is the client, duty-holder or responsible person that has the ultimate responsibility for carrying out a risk assessment to comply with the exception for 411.3.3 (i).

Remember that this option is only open to us for use in installations that are not a dwelling. A caveat for risk assessments, to negate the installation of an RCD, in domestic dwellings does not exist and cannot be used.

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Periodic inspection and testing When during an Electrical Installation Condition Report you come across socket-outlets, in accordance with 411.3.3, which does not have additional protection from an RCD ≤ 30 mA, your options are: If the client is unable to provide you with the original documented Risk Assessment regarding the socket-outlets within the electrical installation, determine the use of the socket-outlet/circuit that does not have additional protection in accordance with 411.3.3. ●

If the installation was prior to BS 7671:2018 this would initially be an observation code C3, or if the socket-outlet use subjects the user to increased risk, such as external use, cleaners, coffee points or changing rooms, then it would attract observation C2 and/or

●

Make an observation that the socket-outlet/circuit does not have additional protection in accordance with 411.3.3 and issue an FI Code.

The client has requested that if these conditions arise, to notify them (agreed in limitations) and they will assess any risks going forward.

The outcome of this risk assessment will lead to either: (i) No Code being given, and therefore a satisfactory result or (ii) A C2 Code, which will need to be addressed by the client going forward.

In this case, you may be asked to, or have agreed to, advise your client. It is therefore vital that you understand what a risk assessment is and how to carry one out adequately.

We say ‘adequately’ because if a risk assessment is scant, missing information, or has been written in such a way as to wrongly favour a given situation, it will not accurately portray any associated risk and will be of little value. This will not be favourable if the Health and Safety Executive (HSE) is involved when things go wrong.

A risk assessment is defined as:

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“A systematic process for identifying, estimating, and analysing the levels of Fig 1: A sample of a Residual Current Devices risk presented by a (RCD) Risk Assessment form given scenario, to determine the advise on, a risk assessment, any liability probability of an outcome and its will remain with the duty-holder, not the consequence. This data can then be contractor. used to identify and initiate control Prior to commencing the EICR, if a measures and working practices, suitable risk assessment can be provided which may present themselves, to via a Risk Assessment/Declaration which enable a safe level of risk to be could be attached to the report to accepted.” alleviate the issuing of observations with a C2 code, this would allow the satisfactory In the previous definition, there is no EICR to be issued. mention of cost. An RCD for use in Fig 1 shows an example of a Risk 411.3.3 cannot be omitted for a cost Assessment for Regulation 411.3.3 (i). saving or because it is out of a client’s budget. This would simply be a failure to comply with BS 7671:2018, Regulation 411.3.3 (i). In the event of an accident, liability would be apportioned by the HSE, if an incident were to be severe enough.

For the purpose of an EICR, this would attract a C2 code. In all cases, the client or duty-holder is responsible for any assessment of risk for their business.

Even if a client or duty-holder uses a contractor to provide them with, or

“IN ALL CASES, THE CLIENT OR DUTY-HOLDER IS RESPONSIBLE FOR ANY ASSESSMENT OF RISK FOR THEIR BUSINESS.”

FOR MORE INFORMATION ON NAPIT SCHEME REGISTRATION, VISIT: WWW.RDR.LINK/EB015

PROFESSIONAL ELECTRICIAN June 2021 43

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Working on your own? Need some technical advice? Don’t know where to turn? Ask Megger. What it doesn’t know about installing and testing electrical systems isn’t worth knowing. Every question will be answered by the Megger Technical Team, and the best will be published in Professional Electrician. So, take advantage of the ‘every question answered’ guarantee today. email your questions to: meggermeasures@hamerville.co.uk

You ask: I’M LOOKING FOR AN EASY AND INEXPENSIVE WAY OF RECORDING THE CURRENT DRAWN FROM AN OLD SOLAR PANEL INSTALLATION OVER TIME AND PRODUCING A GRAPH OF THE RESULTS. DO YOU HAVE ANY SUGGESTIONS?

Megger says: We have a great new Megger Link App that will let you connect a whole range of Megger instruments to your tablet or smartphone via Bluetooth. Among the instruments it works with are our DPM1000 power clamps and DCM1500S solar clamps, both of which are ideal for working on solar PV systems. Once you have the Megger Link App, which you can download free from the Google Play or Apple App stores, you can use it to monitor and record test results from up to four different instruments at the same time. The App will display the ‘live’ values being measured by the instruments and also graphs of the values over time. The graph is updated at intervals you can choose in the App settings. The App also stores the results and you can export them using the share function in the menu. This sends a csv file via email (or other messaging application) to your computer where you can open the file with a spreadsheet like Excel and create the graphs you need for use in reports or presentations.

DOWNLOAD THE MEGGER LINK APP FROM GOOGLE PLAY AT: WWW.RDR.LINK/EB016 DOWNLOAD THE MEGGER LINK APP FROM THE APPLE STORE AT: WWW.RDR.LINK/EB017 44 June 2021 PROFESSIONAL ELECTRICIAN

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TECHNICAL & TRAINING

Kirsty Johnson, Technical Sales Director at Surge Protection Devices, ponders whether the upturn in CPD will continue in a post-pandemic landscape.

ARE WE CPD-ING THE LIGHT?

O

ne thing that's become apparent over the course of the pandemic is that the industry view of Continuing Professional Development (CPD) has really shifted.

With the circumstances as they were/are, and more electricians having a bit of free time on their hands, we've really noticed an upturn in the number of individuals who've seen the opportunity to 'upskill' themselves.

I think its also shone a light on how little training and further learning was being undertaken by the industry in general, pre-COVID.

What's the big deal with CPD? Competence scheme providers have long been advocates of CPD, along with industry groups such as e5, who regularly encourage contractors to ‘level up’ by increasing their knowledge.

With new technology emerging so quickly, electricians run the risk of being left behind if regular CPD isn't completed.

As someone who works for a company that specialises in surge protection, I've always seen CPD as an extremely

46 June 2021 PROFESSIONAL ELECTRICIAN

important area of the industry and my own career has centred largely around training and CPD. Before the 18th Edition arrived, surge devices were not widely used within most sectors of the industry, so my job has entailed lots of educational talks, seminars, CPD events, appearing on industry podcasts and writing articles for publications, such as PE. In fact, pre-pandemic, I was driving up to 1,000 miles a week covering events in both the UK and Ireland!

The show does go on So, when I was grounded in March of last year I honestly didn’t know what to do with myself for the first few days.

After discussions with colleagues and friends, I realised that I could carry on delivering quality training on a virtual basis and that eventually led to us launching the SPD Training Academy. I was overwhelmed with the response and one live session a week quickly became a daily event.

I've now trained thousands of electricians, specifiers, electrical consultants, lecturers and apprentices throughout every level of the electrical

industry, all for free, without even leaving the office. I've also had some lovely

046_PE_JUNE21_Layout 1 05/05/2021 20:58 Page 47

feedback from delegates and the sessions have been met with such gratitude.

It has, however, really highlighted to me the lack of free, easily digestible CPD that's being offered throughout the industry currently. It’s crazy now to think of all of the important training and CPD on vital issues, that was potentially missed pre-COVID due to the pressures of working as an electrician professional.

CPD, rightly or wrongly, gets put on the back-burner once the hectic pace of daily work picks up, especially for small contracting companies and sole traders who would likely lose income in order to undertake training. There are many who have made massive accomplishments in learning and training during lockdown which, during a normal period, would have been impossible.

What lessons have we learned?

In my opinion, the availability and suitability of free CPD opportunities is something that our industry needs to address moving forwards.

I personally feel that manufacturers have an obligation to offer CPD opportunities to anybody that wants to learn, and it would be a step backwards if we see a decrease in the amount of CPD being offered as we move closer to normality.

In the case of the training that we offer at Surge Protection Devices, I wanted to ensure that individuals could still take part, even if they're back at work. So, alongside my live sessions, I've broken down my training webinars into 10–15 minute modules, which can be watched on demand.

This means that contractors will have the option of partaking in a live session with myself where they can ask ‘real time' questions, or if the times and dates don’t suit, they can log in and do the training session in their own time, then contact me after with any questions.

It shouldn't be a sales exercise I've delivered training to contractors and consultants that have openly told me they don’t use my company’s products – something that might not go down well with some manufacturers.

What's important to me, however, is that the education is there to ensure that the correct devices are selected and installed, that professionals understand the regulations around surge devices and why they're being installed – not what brand of SPD is being used.

As much as we're all looking forward to getting back to a bit of normality, I hope CPD and its importance for the industry to stay relevant and up-to-date isn't quickly forgotten.

BOOK TRAINING OR VIEW ON DEMAND CPD FROM SURGE PROTECTION DEVICES AT: WWW.RDR.LINK/EB018

THE TRAINING GROUND Q. Why can’t I get detailed feedback on how I failed my AM2? I need to know where I went wrong, so I know what to focus on next time.

This is an area where NET has listened to your views and has recently made changes.

From April 2021, the AM2 results sheet lists a series of statements relating to the failed section/s, so candidates can understand more about where they didn’t meet the standard. For instance, ‘Selecting the correct cable as per the specification’, or ‘Positioning the equipment to the specification issued’.

We often get asked for more detail on specific points, like ‘which cable did I not select correctly?’, or ‘how did I position the equipment incorrectly?’

There’s a balance between giving helpful feedback and disclosing too much detail – if we told everyone exactly what they had failed on, and answered the questions above, it wouldn’t take long for people to work out the overall specification and marking criteria, which threatens the confidentiality of the assessment.

The assessment must be fair for all, rather than giving an unfair advantage to those who try to undermine the industry standard by seeking out what is essentially the ‘exam paper’ before their assessment.

The AM2 is an assessment of your overall industry competence rather than a ‘train to pass’ test. If you have been fully trained, have sufficient experience of all areas covered within the checklist and have studied the pre-assessment manual carefully, the AM2 is a fair benchmark of the standard that you should be able to meet.

The new feedback statements will enable you to look carefully at what areas to pay specific attention to next time. We’ll also continue to review our feedback within the permitted boundaries.

GET MORE ADVICE AND SUPPORT FROM NET AT: WWW.RDR.LINK/EB019

PROFESSIONAL ELECTRICIAN June 2021 47

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TECHNICAL & TRAINING

CIRCUIT-BREAKER SELECTION FOR LED LIGHTING BEAMA has produced a guide for the selection of circuit-breakers when supplying LED lighting, to avoid unintentional operation by inrush currents. This article provides a summary of the selection guidance.

P

rimarily, circuit-breakers and RCBOs are selected for overcurrent protection of the wiring system and fault/electric shock protection. In certain cases, to avoid unintentional operation, the peak current values of the loads must be taken into consideration.

The BEAMA guide relates to the selection of circuit-breakers when supplying LED lighting so as to avoid unintentional operation by inrush currents.

The electrical circuit interfacing between the AC mains supply and the LED lamp module, termed an LED driver, can cause high inrush currents to flow.

The LED driver circuit can be integrated in the lamp, in a separate case built into a luminaire or external to the luminaire. The LED driver circuit characteristics affect the inrush current peak and duration, as opposed to where it is located.

The term LED lighting is used in this guide regardless of where the AC supplied LED driver is located (internal or external). References to multiple LED drivers is to be interpreted as multiple

lamps, luminaires, drivers or a combination of them as appropriate.

LED lighting inrush current When the AC supply is switched on, LED lighting can cause an initial peak transient current several hundred times higher than their load current during normal operation; this is compounded by simultaneous switching of multiple LED lighting. This inrush current typically lasts less than 1 ms.

The inrush current is caused by the charging of capacitors in the power supplies of the LED lighting or because of the initial low magnetic flux in the transformer in the power supply.

The peak inrush current magnitude and

Fig 1. Typical LED lighting inrush current profile

inrush current pulse duration are key parameters in characterising the inrush current profile, which are important when selecting circuit-breakers so as to avoid unintentional operation.

The method for determining peak inrush current characteristics for lighting products is set out in BS EN IEC 63129 Determination of inrush current characteristics of lighting products. This standard establishes lighting products peak inrush current (Ipeak), and peak inrush current time period (tH50) at 0.5Ipeak.

Ipeak and tH50 are used for the selection of MCBs/RCBOs for LED lighting.

LED lighting manufacturers provide peak inrush current and time duration data however it should be verified that the data is Ipeak and tH50 as stipulated in BS EN IEC 63129.

Selection of MCBs & RCBOs for LED lighting circuits LED lighting inrush current characteristics can vary significantly between manufacturers therefore, when selecting an MCB or RCBO: It is critical that the MCB/RCBO

PROFESSIONAL ELECTRICIAN June 2021 49

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TECHNICAL & TRAINING

manufacturer’s and LED lighting manufacturer’s guidance is applied. It cannot be assumed that guidance from one MCB/RCBO manufacturer can be applied to another manufacturer’s MCBs/RCBOs. Many LED lighting manufacturers provide a table detailing the number of LED drivers that can be supplied from a rating/type of MCB/RCBO, but this is only to be considered as general guidance – it cannot accurately be applied to all MCB/RCBO manufacturers’ products.

As a general principle to avoid unwanted tripping of an MCB/RCBO, the number of LED drivers supplied by an MCB/RCBO can be increased if they're not switched on simultaneously.

MCB/RCBO manufacturers use varying methods for the selection of MCBs/RCBOs for supplying LED lighting, as detailed in the following options:

Fig 3. Example graph of non-tripping curve for time range 50 µs to 10 ms

2. Selection using the LED driver(s) peak inrush current (Ipeak) and peak inrush current time duration (tH) For this method, the peak inrush current (Ipeak) of the driver is divided by the MCB/RCBO (In) rating.

The result is correlated to the peak inrush current time (tH) to select the instantaneous type of MCB/RCBO to be applied.

The example in Fig 3 shows a graph of the average non-tripping curve for the time range of 50 µs to 10 ms.

Example: for a 10 A (In) MCB/RCBO and a load of 100 A LED driver peak inrush current (Ipeak) with a duration of 200 µs (tH50):

Fig 2. Example chart on number of LED drivers

Using the chart, Ipeak /In = 100/10 = 10 which correlates to 1 ms nontripping time, which is greater than the 200 µs peak inrush current time duration, therefore a Type B circuit breaker can be selected.

50 June 2021 PROFESSIONAL ELECTRICIAN

3. Selection using a ‘factor’ based on pulse duration This method uses a ‘factor’ based on the time duration of the peak inrush current. This factor is then used to calculate the MCB/RCBO maximum non-tripping peak current for the specified time. An example is given below: No-trip peak current = factor x lower value of instantaneous current* x current rating.

For example, 520 µs peak current time duration (factor 5) with B16 circuit breaker No-trip peak current = 5 x 3 x 16 = 240 A Therefore, for an LED driver with an inrush peak of 40A, the calculation would be: 240 / 40 = 6 drivers.

The full BEAMA guide also investigates a number of alternative solutions which are not possible to cover in this article: - Selection based on MCB/RCBO peak current/time data - Inrush limiter solutions - Timed switching of LED lighting - Integral programable, or random time delay.

BEAMA is the long established and respected trade association for the electrotechnical sector. The association has a strong track record in the development and implementation of standards to promote safety and product performance for the benefit of manufacturers and their customers.

1. Selection using a chart based on the rated power of the LED driver(s) and the instantaneous non-tripping current of the MCB/RCBO This method involves consideration of the power rating of the LED driver and the instantaneous tripping curves of the MCB/RCBO. The chart in Fig 2 is an example of the type of information provided by an MCB/RCBO manufacturer on how many LED drivers can be supplied by the MCB/RCBO based on the MCB/RCBO Type (B, C or D).

If tH50 > 1 ms, a Type C or Type D MCB/RCBO would need to be selected.

*MCB/RCBO minimum instantaneous tripping current - 3 for Type B, 5 for Type C, 10 for Type D

Fig 4. Example graph of factor based selection

VIEW THE FULL CIRCUIT-BREAKER SELECTION FOR LED LIGHTING GUIDE AT: WWW.RDR.LINK/EB020

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TECHNICAL & TRAINING

UNDERFLOOR HEATING: GETTING THE BASICS RIGHT

U

nderfloor heating systems were invented by the Romans, by heating water pipes that travelled through the ground.

With advances in technology, we're now able to provide electrical solutions that solve this need. However, there's a bit more to the installation process than just sticking a mat to the floor.

It’s important to remember that there are two main types of underfloor heating: Matting Where the cable is fixed to a mesh, with a double-sided tape fixing to the floor.

Single cable The cable is fed from a drum and is fixed to the floor (usually by means of hot glue).

Both methods provide the same overall effect of a fast-acting radiant heat in the room. Radiant heat is much like the way we feel the heat from the sun. It doesn't

52 June 2021 PROFESSIONAL ELECTRICIAN

actively heat the room, but instead the bodies within it when they intercept the radiated waves.

We also use electrical underfloor heating to achieve conducted heat. This is best described when we feel the warmth of the heat source on our feet through the floor covering. This method can be ideal when taking the chill off a tiled surface in the colder months.

Check the capacity of local circuits When designing an underfloor heating system, it's a good idea to check the capacity of local circuits and whether you need to run in a dedicated supply (Appendix 15 of BS7671 gives guidance).

In extreme cases you may even need to contact the DNO to upgrade the incoming supply.

A greatly missed detail during the survey, is the build up to the finished floor height.

An existing subfloor to be covered with a vinyl tile flooring covering would need an average build-up of approximately 24mm,

There's no better way to increase the thermal comfort of a living space than through the introduction of an underfloor heating system. Here, Peter Arrow EngTech MIET, offers best practice guidance to ensure a safe, long-lasting install.

including thermal board, cable, self-levelling compound and floor finish, increasing the floor height to well above any sub-floor.

Different floor finishes can vary a lot, as tiles come in a number of thicknesses, as would their adhesive beds to level the existing floor.

There should be contact with the flooring contractor as to whether the final product will work with underfloor heating and, if so, what depth coverage they require. There have been several cases where the floor covering has not been deep enough and cables have started burning through the floor.

It's a good idea to get a layout of the room before designing the system.

Thermal blocking (placing of rugs, bean bags or similar) over the floor can reduce the ability of the cable to disperse its heat, and even cause the system to fail.

Units where food is to be stored shouldn't have underfloor heating installed beneath them as it can cause reduced lifespan and unwanted odours.

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The supplementary floor sensor can be left isolated in the box for future use. The heating cable will usually have a protective earth shield surrounding the line and neutral conductors.

To test the cable, a continuity test should be carried out and recorded for future maintenance and fault-finding works. The measured test results should mimic the readings provided by the manufacturer and should be tested:

After checking the availability of supply, allowing no diversity for the electric heat source, it's worth noting the existing RCD protection of the system. It is recommended that a Type A RCD is fitted.

Further safety considerations When designing a system, it's worth noting that one 30mA RCD should protect no more than 7.5kW/230V or 13kW/400V. Further safety considerations can be found in BS7671 chapter 753 Heating cables and embedded heating systems.

The system itself will comprise of: a local isolator, a thermostat suitable for electric underfloor heating (usually rated at 16A max), an underfloor heating cable and a floor sensor.

The underfloor heating cable has a cold tail (part of the cable that doesn't get hot), the heating cable itself and a resistor joint at the end. It's good practice to install a secondary floor sensor to allow for potential failures in the future.

The floor sensor should also not be located near other sources of heat which could affect its readings. The cold tail joint, end of cable resistor and floor sensor should be completely embedded in an adhesive or compound to prevent overheating.

No cable should cross another and the cables should ideally be spaced no less than 40mm and no more than 110mm apart (check with manufacturer’s instructions). The floor surface itself should be no hotter than 35˚C (compliance with CENELEC guide 29) and it can be achieved by following manufacturers' installation instructions.

The thermostat is best fitted to a 47mm deep pattress or flush box to allow suitable spacing for connection and supplementary floor sensor. The cables should be terminated with good practice, remembering that in accordance with IEC 60228 class 5 and 6, conductors should be ferruled.

a) before removing the cable from the box (to check it has arrived in good condition), b) after installation, and c) after the flooring contractor has carried out their work.

This would identify any faults and if so, what stage of the installation they were likely damaged.

The floor sensor should also be tested, and a measurement recorded to prove their functionality. Insulation resistance tests should be carried out between the live and earth conductors at 500V, unless otherwise stated by manufacturers.

An 'as installed' drawing showing dimensions of the room and the hot areas is good practice to avoid future damage, for example where people may drill into the floor to install door stops.

When commissioning the system, it can pay to have a thermal camera or thermochromic sheet to speed up the process. These instruments will identify the changing temperatures of the surface and even show the locations of the cable beneath to a reasonable degree of accuracy.

By following the best practices, you can proactively ensure that the installed system will last for many years, providing your client with an effective underfloor heating solution.

In his spare time, Pete co-produces the Hit The Lights podcast, providing electricians with the chance to chew the fat about the latest issues and share stories from the trade. Follow the podcast on Twitter @HittheLightsPod

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PRODUCTS & BUSINESS SOLUTIONS Investment in the latest appliance testing technology is helping a specialist electrical contracting business to introduce dedicated company-wide testing protocols and standards as part of a nationwide expansion programme. We learn more.

SHOOTING FOR THE MOON

F

ormerly known as South West PAT Test, the electrical contracting company started in 2006 by Managing Director, Peter McCallum has recently rebranded as The Electrical Compliance Collective (TECC) to reflect its success in growing its operations across the South West, South East, East Anglia and the Midlands.

As part of the expansion of its operations, TECC has equipped its 20-plus team of electrical field test engineers with Apollo 600+ Elite test kits from Seaward as part of a strategy to ensure that customers in a wide range of industries and sectors can meet their electrical safety responsibilities as efficiently and cost-effectively as possible.

The Apollo 600+ carries out all of the electrical safety tests required by the 5th Edition of the IET Code of Practice, with the instrument automatically sequencing through the required tests, which can include earth continuity, insulation resistance, protective

conductor current, touch current, IEC lead polarity and RCD trip times.

Test results are recorded in the instrument’s internal memory and downloaded to the PATGuard 3 PC software program.

Producing test and inspection reports After completing their daily test schedules, TECC engineers send the test results back to head office remotely for inclusion in client databases, with the downloaded data also being used to produce test and inspection reports, provide test certificates and produce client invoices.

This approach has enabled TECC to establish professional working practices and standards across its network of engineers, delivering a fully automatic and integrated electrical safety testing system for its customers.

Hannah Fruen, General Manager of TECC, explains: “As a business, we work across a diverse range of sectors, environments and locations carrying out all

types of electrical work, including appliance testing upwards of 500,000 items each year.

“Our responsibility to clients around the country means that we must carry out all testing as efficiently as possible, but without compromising the validity or integrity of the safety testing process.

“Consistency and reliability are essential in meeting this challenge and the use of the Apollo 600+ Elite kits ensure that we can provide a totally trustworthy and traceable record keeping and documentation system.”

Seaward has worked closely with TECC and its predecessor company to ensure that the PAT testers and accessories continue to meet their needs.

For example, TECC has already upgraded its test instruments with the latest firmware to meet the 5th Edition of the IET Code of Practice requirements and are among the first users of new customised QR code labels for automatic appliance identification and test specification set up.

Richard Slade, Seaward’s UK T&M Field Sales Manager, said: “We value our partnership with TECC and the company's practical feedback is invaluable in ensuring that our test technology continues to evolve to meet the needs of specialist electrical test contracting companies.”

The Apollo 600+ tester and PATGuard 3 test results management software forms part of a comprehensive range of Seaward PAT instruments, accessories and software that have been specifically designed to meet the needs of electrical safety duty holders in all workplaces.

VIEW THE SEAWARD APOLLO SERIES DATA SHEET AT: WWW.RDR.LINK/EB021

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CONSUMER CULTURE

Scolmore's latest product development programme has seen the company enter the consumer unit and circuit protection market with a brand new offering. We share details of the big launch.

D

esigned with the installer in mind, Elucian is an extensive range of metal consumer units that will cover a broad range of installations and offers a number of features and benefits that will enhance the products’ convenience, flexibility and safety properties.

The consumer unit collection comprises a total of 58 individual lines which fall under five main product groups.

1. 100A mains switch consumer unit A range of 6, 8, 10, 12, 14, 16 and 20 way consumer units furnished with a 100A mains switch. This will allow the contractor to fully populate the board to the exact requirements of the installation.

2. Dual RCCB consumer unit – 100A mains switch + 2 x 80A Type A RCCB A range of 4+4, 5+5, 6+6 and 8+8 way consumer units furnished with a 100A mains switch + 2 x 80A 30mA Type A RCCB. A Dual RCCB consumer unit allows for two separate banks of MCBs to be protected separately from Earth leakage by each RCCB. 3. Dual RCCB/SPD consumer unit – 100A mains switch + 2 x 80A RCCB + 2 pole SPD The 18th Edition regulations requires the installation to be protected against Transient Overvoltages. SPDs offer the required protection against overvoltages.

The Elucian consumer unit has located the SPDs adjacent to the main switch for ease of installation. By taking the supply to these direct from the outgoing terminals of the main switch all devices within the consumer unit are isolated when the main switch is in the off position.

4. Combination unit – 100A mains switch + 2 x 80A RCCB A range of 8, 10, 12 and 16 way consumer

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units furnished with a 100A mains switch + 2 x 80A RCCB. This unit allows for two separate banks of MCBs to be protected separately from Earth leakage by each RCCB but also contains additional incoming neutral terminals to allow connection for a separate bank of RCBOs or MCBs which commonly provide a total separation/protection for circuits deemed to be critical such as alarm systems, fridge freezers and stairwell lighting.

5. RCD incomer – mini board – RCD Mini boards offer a practical solution in workshops, garages, outhouses and sheds which require only a small number of circuits (three available ways). These units don’t contain a 100A 2 pole mains switch isolator – isolation is handled by either the 2 Pole 63A or 80A 30mA Type A RCD supplied. Earth leakage on every circuit is dealt with by the one main RCD, meaning that a residual current fault on any circuit will cut the power to all other circuits.

Features that will make these units stand out in the marketplace and help installers make an informed choice include: Non-combustible enclosures: robust metal

housings ensure compliance against the third amendment added to the wiring regulations in 2015 requiring consumer units and similar switchgear assemblies in domestic premises to have a non-combustible enclosure.

Mains switch tail clamp: each consumer and mini unit come supplied and pre-fitted with a mains switch tail clamp for added stress relief to ensure the mains tails terminations don't come loose and to help fix the mains switch Isolator more securely to prevent any rocking or movement. The mains switch tail clamp will accept a maximum of 25mm² double insulated tails.

Knockouts: The units come supplied with a wide range of 40, 32, 25 and 20mm knockouts making each board adaptable for all installation and cable types.

Rear knockouts: The units also come supplied with rounded rectangular knockouts for easy removal and to provide ample cabling capacity for any installation type. Each knockout will be supplied with a 0.5m grommet strip to allow a smooth entry into the board, protecting cable from any potential sharp edges.

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ELUCIAN CIRCUIT PROTECTION RANGE The Elucian circuit protection range comprises mains isolator switches, RCCBs, SPDs, MCBs, RCBOs and blank modules.

2 pole 100A mains isolator switch The central switch controlling the supply of mains electricity from the meter to the consumer unit and subsequently throughout the rest of the property. A mains isolator switch is switched on and off manually – it will not perform either action automatically or electronically.

When the mains isolator switch is turned to the off position, both the incoming Live and Neutral power will be isolated from the unit, isolating the consumer unit/property from the mains electrical supply.

Type A 2 pole 30mA RCCBs (63, 80 & 100A) Constantly monitor the balance of current in the line (Live) and neutral conductors. If an imbalance between the conductors of more than 30mA occurs the device will disconnect within 40mS. When an RCCB trips it is usually to prevent any electric shock or personal injury as electricity is flowing through an unintended path to Earth. The RCCB will detect the imbalance and will then trip and turn off the circuit. If Earth leakage is detected, the RCCB will limit the magnitude and duration of the current to Earth.

Type 2, 2 pole 40kA SPD available in 275Uc (V~) Surge Protection Devices are used to protect the circulatory aspects of the installation from an electrical surge, whether

that be man-made or due to natural causes such as lightning strikes not direct to the installation. SPDs are used to protect electronic equipment connected to the installation such as computers, televisions, washing machines and LED lighting.

1 pole, True 6kA B Curve & C Curve MCBs (6, 10, 16, 20, 25, 32, 40, 50 a& 63A) The range of B Curve and C Curve Miniature Circuit Breakers are safety switches that turn themselves off automatically to protect electrical circuits from damage in the event of an overcurrent and/or short circuit.

Compact Type A 1 pole + Neutral True 6kA B Curve & C Curve 30mA RCBOs (6, 10, 16, 20, 32 & 40A) complete with 450mm Neutral out tails Elucian RCBOs are compact single module devices that allow for additional space above to make it easier to install and terminate outgoing circuits. These devices are Type A rated offering a resilience when

DC current is present. They're single pole devices, isolating the Line (Live) conductor only. They only require a Neutral fly lead connection and accept Line (Live) and Neutral terminations direct into the device.

BS 7671 is proposing a move towards the use of RCBOs for the preferred method of protection. This change should be accepted in March 2022.

Single way din rail blank module Din rail blank modules are installed in consumer units in place of vacant spaces, with future expansion in mind. The modules provide complete protection against access to any potential live parts in applications where a consumer unit is not fully populated with an even amount of circuit protection.

GET MORE DETAILS ABOUT THE BRAND NEW ELUCIAN RANGE AT: WWW.RDR.LINK/EB022

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Steve Boggis, National Sales Manager at FireAngel, highlights the three things to consider when choosing fire safety systems.

CHOOSE WISELY

F

rom achieving remote monitoring, to improving energy efficiency and ensuring compliance, installers are under increasing pressure to fulfil a wide breadth of requirements when recommending and fitting fire safety systems for residential dwellings.

Let's take a look at the key areas professionals should be focusing on when completing these types of domestic projects:

1. Taking the sustainable stance Typically, a smoke alarm spends 99.9% of its time in standby, dissipating the unused energy through heat, which is extremely inefficient. Once the alarm is activated, a significant increase in power is utilised, which is commonly provided by ‘dropping’ the voltage from the mains power supply.

To combat this inefficiency, and support the government in achieving net zero carbon emissions by 2050, professionals should choose smoke alarms that feature an innovative ‘step down’ circuit, which monitors the active state of the alarm to adequately manage the power available.

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2. Surge in smart home adoption As the popularity of smart home devices continues to increase, installers should recommend systems that utilise Smart RF technology that wirelessly interlink all smoke, heat and carbon monoxide (CO) alarms together, whilst also providing the ability to be upgraded at a later date to remotely monitor all fire and CO alarms throughout a property.

Through the installation of a connected gateway, homeowners/nominated family members/carers can use an App, which is updated in real time, to receive information including current alarm status, device history and replacement dates.

providing the highest possible levels of protection, by following the updated Scottish Tolerable Standard. This requires the installation of mains-powered or 10 year sealed long-life lithium battery powered alarms that facilitate hard wired or wireless interlinking.

Professionals can achieve this through a hybrid network, however the mains-powered alarms must comply with a Grade D1 Specification, while the battery powered alarms must meet the requirements of a Grade F1 Specification.

Hybrid networks are particularly useful for projects where hardwiring isn’t feasible, as the network can be quickly extended wirelessly, whilst also offering the opportunity for additional safety products to be added to the system at a later date. The Smart RF technology also eliminates the time-consuming requirement for channelling or trunking.

FireAngel’s latest Specification Range, featuring Smart RF technology, has been designed to provide installers and their clients with a cost-effective, energy efficient solution that can be easily and instantly upgraded to ensure complete compliance and provide the highest standards in fire and CO safety.

3. Following suit with Scotland Installers also have an opportunity to successfully future-proof properties, whilst

GET MORE DETAILS ABOUT FIREANGEL'S SPECIFICATION RANGE AT: WWW.RDR.LINK/EB023

This ensures the device uses just 10% of the energy and is claimed to produce on average 95% less carbon dioxide than other mains-powered alarms, significantly improving its long-term efficiency and delivering impressive running costs of 60p over 10 years per alarm.

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CRACK THE LIGHT BULB CODE The team at V-TAC offers guidance to help electricians better understand light bulb codes and categories ahead of future purchases.

T

here's currently a vast range of light bulbs available in the market so knowing which is which will not just save you time, but can also avoid errors and unnecessary costs.

Generally, light bulbs are categorised according to their base, shape, and size.

The codes seen on the packaging pertain to these aforementioned attributes.

Base, shape and size A good example is the A60 light bulb. The letter – in this case 'A' – refers to the light bulb shape. The A shape is the classic bulb shape that has been most commonly used for GLS or General Lighting Service applications. The

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number that follows the letter indicates the nominal major diameter of the bulb in millimetres.

So, in the case of the A60 light bulb it has the classic light bulb shape, with a 60mm diameter.

The C series light bulbs refer to ‘candela’ or candle-shaped light bulbs, usually used in chandeliers, wall lamps, and similar applications.

The P & G series are spherical, golf ball-shaped light bulbs.

The R and PAR (Parabolic Aluminized Reflector) series are reflector or spotlight light bulbs used in directional, ceiling lighting fittings.

The F series light bulbs are big UFO-shaped light bulbs, useful for their broader lighting scope.

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All about the base It shouldn't be forgotten that choosing the correct base is a very important consideration, as they're generally not interchangeable. Each base corresponds to a certain holder where it will be perfectly compatible.

B22 - Found in most ceiling fittings in the United Kingdom, the B22 or Bayonet base is a push-and-twist type base that has a standard diameter of 22mm.

B15 - A smaller Bayonet base type that is 15mm in diameter.

E27 - Commonly used in ceiling fittings, table/desk lamps, or floor lamps, the E27 is also referred to as the Edison Screw (ES) base type with 27mm in diameter.

E14 - Also referred to as the Smaller Edison Screw (SES) base with a 14mm diameter, this is usually used in wall lamps and indoor lighting fittings.

Colour temperature, equivalent Watts and other attributes The lighting’s colour temperature sets the mood in every room and should be able to fit its purpose – whether it’s for mood lighting, task lighting, or just for general lighting purposes.

The standard colour temperatures range from 2700K/3000K Warm White, 4000K Day White, through to the coolest 6400K White. The unit Kelvin is used to measure the light’s colour temperature. The lower the number, the warmer the colour.

LED bulbs use significantly less wattage but offer the same, if not more, light output as traditional, incandescent light bulbs. The 9W A60 light bulb, for example, has an equivalent wattage of 60W. This means that it emits the same light output as that of a 60W, only it uses far less power (9W).

EXPLORE MORE LIGHT BULB SHAPES, SIZES, BASE TYPES AND COLOURS FROM THE V-TAC RANGE AT: WWW.RDR.LINK/EB024

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SAFE IS

SOUND

Amanda Speight, Business Development Manager at CFE Lighting, explains how emergency lighting systems are evolving and what this means for installers.

E

mergency lighting – whether standby lighting which enables normal activities to continue in the absence of illumination from the mains power supply, or emergency evacuation lighting which includes escape route and open area lighting – is an essential element of health and safety provision.

Fully functioning emergency lighting is required in virtually every commercial and public building, not to mention high-occupancy buildings. And yet, sub-standard or outdated emergency lighting systems – which could lead to inefficient evacuation, bringing about injuries or even deaths – are all too commonplace in the UK. As well as risking injuries or death, business or building owners also face prosecution and a heavy fine if they're found to have inadequate emergency lighting in place, with one private landlord in Lincoln recently receiving a record £400,000 fine.

There are other financial consequences too; insurance companies can use non-compliance with fire safety legislation as a reason for not paying out, and that’s before we even consider the reputational damage that a business may suffer.

Emergency lighting in a building can quickly fall out of compliance due to damage, lack of testing or maintenance, and evolving legislation.

And right now, with so many offices and shops finally reopening after a long period of closure, it’s more important than ever that systems are properly checked and maintained to ensure they're working

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effectively.

This presents a real opportunity for electrical contractors across the country, so now's a good time to share a few key points that should be helpful to those electricians working with emergency lighting over the coming months.

1. Have a plan Knowing exactly what emergency lighting is required and where it needs to be placed is vitally important.

Emergency lighting systems' classification is often based on how the emergency light has its power supplied.

Units will either be self-contained (single point) or central battery source. It’s all about choosing the right system for the environment it's being installed in, though we're starting to see a trend in end users opting for central battery systems over self-contained units.

While self-contained units are faster and cheaper to install, battery life is limited to a few years and testing requires the isolation and observation of individual luminaires, which can be problematic.

Central battery systems, while more expensive, make maintenance and routine testing far easier, with only one location to consider. Additionally, the life of a battery can be anything between five and 25 years, dependent upon type.

2. Know your standards Emergency lighting is covered by a series of interdependent British and European standards and it’s important you’re familiar with these. Two of the most relevant are the BS EN 1838 Lighting applications which specify the illumination, colour and duration to be provided by emergency lighting, and BS EN 60598-1, which outlines general product requirements and testing recommendations.

3. Invest in quality systems By investing in a quality, British-made system, you’re not only supporting UK manufacturers such as CFE Lighting, but you’re also giving yourself and your customers peace of mind for the future.

VIEW THE LATEST CFE LIGHTING BROCHURE AT: WWW.RDR.LINK/EB025

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PRODUCTS & BUSINESS SOLUTIONS

Peter Dumigan, MD of the Hultafors Group UK, looks at why sustainable workwear that's also great for leisure activities will be high on the agenda of trade professionals this summer.

IT'S COOL TO BE ENVIRONMENTALLY KIND

I

t’s nearly 150 years since Levi Strauss took the clothing world by storm with denim working clothes. Little did he know then that rugged looks, utilitarian garments and responsibly sustainable clothing would become one of the statements of the modern cool in fashion trends.

For over 50 years, Snickers Workwear has been building a workwear trend that now delivers eco-friendly, technically advanced, innovative and high-quality working clothes that are built to last and look good at work and at play. In essence, workwear that can be used both on-site, and for leisure activities too.

Nowadays though, environmental considerations are more important than ever for workwear and footwear brands. Just as the effects of

plastic waste on the environment has been brought to the centre of consumer consciousness in recent years, so the problems caused by the disposal of shoes and clothing are also coming to the fore.

Overwhelming amounts of waste Images of ‘ragpickers’ and animals feeding on waste clothing mountains in Africa are an increasing cause for concern as landfill sites become overwhelmed because we dispose of our waste on someone else’s doorstep. But it’s not just everyday consumer waste that’s causing problems.

Thousands of tonnes of used clothing and footwear end up in landfill or on waste mountains overseas. It’s time they were disposed of in an environmentally responsible manner so that ‘footprints’ can be maintained at levels that benefit everyone, not just the environment.

Snickers Workwear clothing is trialled from the arctic circle to the southern Mediterranean, tried and tested in extreme environmental conditions – cold, heat, wind and rain. But not only are these working clothes tested for performance,

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they’re now tested with regard to ‘environmental sustainability’.

What makes these garments so appealing to individuals and corporates alike is not only the ergonomic body mapping designs but also the 21st century fabrics including the latest in recycled, organic and sports fabric technology.

Design and development has always been driven by continual research into user needs and experiences in a variety of working environments and weather conditions, but nowadays recyclability and carbon footprint impact is a key part of that evaluation.

Great for work and play So, it’s not just the physical demands on the body when working hard on-site or in sports and leisure activities that’s researched, it’s the physical demands that product manufacturing and disposal place on the world around us that matters too.

So, if you’re thinking about what’s most practical – and beneficial – to wear this summer for work or leisure, some of Snickers Workwear’s LiteWork and FlexiWork clothing is dual purpose and works hard in reducing our collective carbon footprints.

If it’s performance you need, check out the upgraded lightweight and breathable 37.5 fabric technology in Snickers' shirts and base-layer clothes. With superb cooling technology, they’re great for demanding tasks on-site as well as high intensity gym work, circuit training, jogging, hill walking and mountain-biking.

The new AllroundWork styles are made from highly functional waffle- structured 37.5 fabric for optimal ventilation, cooling and moisture transport to keep you feeling fresh for longer.

If you want to be more than just cool and comfortable at work this summer – and do your for bit for saving the planet at the same time – the ‘verifiable sustainability’ in Snickers' new t- and polo-shirts will suit you down to the ground.

The polo and t-shirts are made of 100% recycled polyester with a bio-based, anti-odour finish plus a smooth texture and efficient moisture transport for great working comfort.

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Animal instincts If your focus is on being kind to animals, the Sustainable Merino Wool mid- and base-layer clothes are ‘Mulesing-Free which will help you stay warm or cool because of the nature of its 100% all-natural Merino Wool fabric that delivers optimal comfort for all kinds of working environments and leisure activities.

Designed by nature for excellent ventilation and insulation, Merino wool is extremely soft, and naturally odour-preventive for an all-day fresh feel. It’s also temperature-regulating, repels water, dirt particles. It’s anti-static and Snickers ensures that the wool it uses is produced in kind-to-animals, ‘Mulesing-Free’ environments.

Focusing on recyclability?

If recyclability is your particular focus in eco-friendly priorities, then the AllroundWork fleeces and bodywarmers could be your ‘sustainable choice’.

Made from 100% recycled polyester, the POLARTEC garments are comfortable and lightweight with great freedom of movement. They’ll also deliver just the right warmth and comfort to keep your body warm in chilly early mornings or comfortably cool in the warmer evenings.

If you want to ensure 100% Circularity in what you’re wearing, a product that’s completely made from a combination of recycled materials and materials that are recyclable is EMMA, Sustainably Responsible Footwear.

EMMA is a socially responsible brand because it’s totally committed to sustainability and reducing waste. Every shoe, trainer or boot in its range is safe for the environment with a ‘100% ‘circular’ manufacturing, usage-mapping and recycling process for every single product it produces.

So, to make a positive social impact in

your workplace, if your ordinary safety footwear just isn’t contributing to your sustainability policy, you can be sure there’s an EMMA product that is.

Improve your carbon/comfort footprints While style, comfort and functionality have been key drivers in Snickers Workwear clothing development over the years, fabric performance and sustainability is now central to the technical design of the garments and footwear, just as it is in performance sports and leisurewear.

The result is environmentally-friendly, ergonomically designed dual-purpose working clothes and footwear that are not only designed to meet the physical demands that tradesmen and women face at work but are also ideal for some sports and leisure activities – and reducing your carbon footprint too!

VIEW THE SNICKERS WORKWEAR DIGITAL CATALOGUE AT: WWW.RDR.LINK/EB026

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PRODUCTS & BUSINESS SOLUTIONS The technical team at Zano Controls give us the lowdown on the testing processes involved with checking for lamp compatibility and performance of its products.

BALANCING THE CHECKS

H

ere at Zano we test countless lamps every week at our in-house testing facility. What we come up against time and time again are queries on lamp compatibility and how we go about testing the lamps that we receive, what we look out for and the signs of a good performing LED.

What are the problem signs you look out for when testing?

The first thing we look for is a clean dimming range visually. If this is poor and we can perceive flicker when dimming, it’s typically an indicator of the results to come.

From there we test for inrush and look at the current draw across each cycle.

Combining the results from the inrush test and the current draw, means we can calculate the maximum number of lamps that we can fit on a circuit with one of our products, say for example the ZGRIDLED150.

Is the lamp or dimmer usually to blame for LED flicker?

The lamp. The biggest issue is typically with compatibility, not all LEDs are created equal. Even when it comes to big brand names and reputable manufacturers, LEDs can vary widely from model to model. Technical issues like inrush current and power factor can mean the wattage labelled on the box is very different to the actual power consumed by the lamp.

This is why it is so important that when you add a dimmer to your install and calculate the total load that you allow for inrush. The 18th Edition (BS7671:2018) states that you should multiply the wattage by 1.8 to leave a generous inrush allowance and avoid any nasty complications.

What LED lamps have you tested recently that stand out?

The most recent test we’ve carried out has been on the Bell Halo GU10 range. It

put up an outstanding performance with next to no inrush, a large dimming range and smooth dimming control from minimum to maximum. It’s definitely one of the best performing GU10s we’ve had to test to date.

What affects LED lamp longevity?

The biggest LED lamp killer is heat.

Unlike old school lamps, LEDs have an electronic driver that doesn’t react well to excessive heat. On top of that, LEDs themselves produce a lot of heat. If you’re fitting a lamp in an enclosed space, buying one with metal casing (as opposed to plastic) can help dissipate the heat away from the driver better.

Finally, why can’t you produce a lamp compatibility chart?

To put it simply, it’s because it would expire so quickly. The biggest reason behind why we’re yet to produce a lamp compatibility chart is because of the rate at which lamp manufacturers change their designs. Sometimes they even release the same design under the same product name causing us to believe a lamp is compatible when in reality, we haven’t actually tested that specific design.

However, we’re always more than happy to receive lamps for testing to ensure the best performance (and compatibility) with our products.

VIEW THE ZANO CONTROLS MINI CATALOGUE AT: WWW.RDR.LINK/EB027

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THE CHOICE IS YOURS

Timeguard Technical Manager, Peter Staniforth, gives some pointers that electricians should consider if they're to make the most of their customers' outdoor space this summer.

B

uying outdoor lighting and power accessories should be easy, shouldn’t it? Then, when you get to the wholesaler there’s an inch-thick of catalogue pages to choose from. That's why it's best to start with a checklist.

How much protection is needed?

Knowing about Ingress Protection (IP) ratings can be very useful and will help you to determine what level of IP protection you need for the job at hand. Naturally, products will mainly be priced accordingly but that should be no temptation to compromise.

In simple terms, the higher the number, the greater the degree of protection.

The first IP number is an indication of foreign object protection (dust) and the second digit defines the protection from

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water/moisture. An IP55 rated product is protected against dust ingress that could be harmful for the normal operation of the product, but it is not fully dust tight, like an IP65 or IP66 model.

The second digit of ‘5’ indicates protection against water projected by a low-pressure nozzle from any direction, whereas ‘6’ indicates protection against water projected from a high-pressure water jet. For very high levels of safety, IP68 is dust tight and protected against long periods of immersion in water under pressure.

Remember, IP ratings don't measure or offer any kind of UV protection that can cause a product to quickly degrade and become brittle, so choosing a quality manufacturer that adds a UV stabiliser to its products is vitally important. Look for a good, solid enclosure, avoiding flimsy tabs

that can snap off. Good seals are obviously important (neoprene is a hard-wearing long-term seal).

If the user wants to be able to check the status of outdoor power at a given distance, clear windows mean that they can see the switching status of the electrical supply without needing to open and close the enclosure so often. This also reduces wear and tear. Of course, any lid will help to deter unwanted hands.

What’s it for?

Sockets Outdoor sockets are likely to be workhorses for the factory maintenance yard or outdoor appliances and power tools for the patio and garden. Of course, you might get away with a bulky enclosure at the bottom of the garden but not in the sitting areas, so good looks do matter. You

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also want it to be easy to use and even lockable if you want to stop other people tapping into your power supply.

Is SRCD protection needed? For extra downstream safety, the answer is likely to be yes and not installing it is pretty much unthinkable where power tools are to be used and the likes of lawnmowers and hedge trimmers will be plugged in.

There are plenty of options on the market that offer SRCD-protected sockets in weatherproof enclosures, so there’s no need to compromise.

Be sure that your choice complies with the current British Standard (BS 7288:2016), and is RCD Class “A” rated.

Also be clear on the difference between ‘Active’ and ‘Passive’ protection – the last thing a clumsy gardener needs is a passive socket that automatically resets itself and starts the blades whirring

again after a power outage.

Therefore, installers and users will often choose ‘Active’ SRCDs so that in the event of a power outage or the unit tripping, users can check over the power equipment and the SRCD before manually re-setting and restoring power. Good news if someone has cut the hedge trimmer cable!

Another handy safety feature to look for is the padlock boss on the enclosure to keep tiny fingers out.

If control and energy saving when using, say, patio heaters is a consideration, why not fit an outdoor Wi-Fi controlled weather-protected fused spur?

The user can simply program On and Off times or switch ON or OFF via their mobile phone. There'e also plenty of options for in-line connectors and junction boxes.

Lighting Outdoor lighting will probably be for security or serenity, or sometimes both.

While basic LED floodlights may be fine for lighting up the back driveway, most homeowners want something a little prettier for the garden they hope to enjoy in the summer months.

Good design is subjective, but you’ll know it when you see it. Do consider asking for white options as well; where the housing and reflector plate are all pure white, floodlights and lanterns etc. can blend seamlessly into the soffits and paintwork.

Check out the adjustability; LED lighting is relatively bright so users may want to direct the light. Wide beams, a result of designers going the extra mile to engineer the LED diode arrays, provide a softer light and a more even ‘wash’, better suited to al fresco life than the more direct beam of a standard LED. Also, just how easy is it to direct the light to the right area of the garden/patio?

Look for products that have easy Pan and Tilt feature. They make it easier to set up and for users subsequently to move around themselves.

If you plan to use master/slave combinations check that there are enough knockouts and that the wiring block provides the loop out terminals you'll need.

Last but not least, don’t forget to fit out your own garden, and let’s all hope for another summer of great weather.

VIEW THE LATEST TIMEGUARD PRODUCT CATALOGUE AT: WWW.RDR.LINK/EB028

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PRODUCTS & BUSINESS SOLUTIONS

Pete Monfort, Director of Monty Electrics, Arena Training Centre and Sheffield Meadowhall AM2 Centre, takes a safety first approach this month as he tries out the Di-LOG 6790 CombiVolt 2 and PU690 Proving Unit.

“this kit COULD ‘prove’ A LIFE SAVER!”

T

here's been lots of activity in the trade press and on social media in recent times, reminding electricians of the importance of safe isolation.

Indeed, I'd recommend that fellow professionals check out Michael's Story and the video that was recently added to the IET's YouTube channel, which identifies additional steps that should now become part of the method statement for safe isolation, a procedure that ALL electricians should follow every time they work.

A key piece of equipment for safe isolation is, of course, a suitable approved voltage indicator so I was excited to receive two Di-LOG 6790 voltage continuity testers to review, along with the PU690 proving unit. As someone who runs a very busy electrical training centre I was able to put these into immediate use in our workshops, with everyone – from novice to seasoned veteran – getting hands-on with them.

The 6790 is supplied with 2 x AAA batteries and the unit is a lightweight but robust construction. The rubber finish will be excellent in warmer environments, providing a high level of grip and avoiding

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the possibility of hands slipping. In any event, there are finger guards and probe covers which ensure compliance with the all-important GS38 Electrical test equipment for use on low voltage electrical systems document that's produced by the HSE.

Straightforward voltage testing Cat IV rated, the tester is suitable for use on single and three phases and nominal voltages up to 600V. Additionally, the PU690 proving unit allows for confirmation that the tester is functioning correctly, whether for continuity (by pressing the probes together) or voltage (by use of the PU690 proving unit before/after, proving a supply is dead).

Voltage testing is very straightforward – simply place the probes on the AC or DC supply. Clear indication is provided and the probes are marked with ‘+’ and ‘–’ for DC measurements with an audible reverse polarity warning. The actual voltage is clearly shown with LEDs and on the LCD screen, while a single probe live test is also available to check for supply.

Moving on from safe isolation, the Di-LOG unit will also indicate continuity

which is particularly useful for making quick checks on connections or when you’re fault finding.

An added extra feature is the phase rotation test, and the key thing here is to make sure you orientate the probes correctly since the display provides a clear indication of rotation using LEDs to show right or left rotation.

That said, the instructions clearly state the product is for use by a competent person so it's a straightforward test that only requires a couple of minutes to familiarise yourself with the kit.

One thing I really like about the unit is the simplicity of design, and I was impressed at how quickly new users were able to pick it up and get used to it. It's a doddle to operate, gives clear indications and has already had lots of use across both of our electrical and training businesses.

A competitively priced product that is an essential tool for any business, the Di-LOG 6790 CombiVolt 2 and PU690 proving unit gets two thumbs up from me!

VIEW THE DI-LOG SAFE ISOLATION SERIES FLYER AT: WWW.RDR.LINK/EB029

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WHAT ABOUT USING A PHOTO?

Louise Taggart is all too aware of the repercussions associated with failing to adopt safe isolation practices in the electrical industry. Her brother, Michael, was tragically killed on-site in 2005, since which time Louise has campaigned tirelessly to raise awareness.

One interesting new concept related to safe isolation practices is the use of a photo ID – a process that Louise discovered courtesy of Shaun Malin, Proprietor of Shaun Malin Electrical & Plumbing.

She says: “At the end of the Lock Out Tag Out process is not a circuit, or a cable, or even a distribution board etc... it's a loved one!

How many electricians use a photo on their tags to reinforce this point?

“We need to make safety personal. That's why we should always start with 'why'.”

WATCH THE VIDEO OF MICHAEL'S STORY AT: WWW.RDR.LINK/EB030

Picture courtesy of Shaun Malin on Linkedin

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PRODUCTS & BUSINESS SOLUTIONS

IS IT TIME FOR ‘T’?

W

Gary Fisher of Lougar Electrical is back on the review trail as he tries out the Plug-in T-Connector. e're very fortunate in the electrical industry that a number of the companies whose products we use on a daily basis are regularly striving to bring new ways of saving on time and hassle to the market.

One example is the recently released pluggable T-Connector from Quickwire – a system that is designed to make life that bit easier when connecting light fittings together. Put simply, it's a very handy plug and play connection kit.

Product capabilities The initial T-Connector socket is capable of taking a maximum of 2 x 1.0-2.5mm twin & earth solid core conductor cables (loop in loop out scenario), which when stripped back, just push into the connector socket, with the T-Connector plug taking a flexible cord.

When stripping, there's the option to obtain Quickwire's own automatic stripping tool which makes the process of stripping of the T&E and flex's that much easier. There's no need for any adjustment – you simply place the cable where you want to strip and away you go

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– no effort involved and you just need to get the correct length sorted before guiding them into the connector unit. I would, however, suggest a little bit of practice time beforehand so that you can get the hang of using them correctly.

Correctly positioned cores So, for the T-Connector socket it's recommended that you go with 20-22mm of the outer sheath stripped, and 15-17mm of the inner insulation stripped.

You then align and push into the connector until it can go no further and, to confirm you've carried out the process correctly, there's a window that allows you to see whether the cores are correctly positioned. To hold the cable in place you simply snap the shutters together – Bob’s your uncle!

Trust me, if you can get this process right there will be no need to identify the cpc with sleeving.

If, for any reason, you've made a mistake then the process of disconnection is just as easy. Using Quickwire removal tool (free with each order), or if you don’t have one to hand (I didn’t) a screwdriver, you place it under the side arms and with your thumbs push the shuttle out to

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release the cable. Again, I found this process a touch awkward at first, but soon got the hang of it after a few tries.

Gripping stuff When it comes to the T-Connector plug the process is very similar – it's recommended for 27mm of the outer sheath to be stripped and 9mm of the inner insulation, before you push in and close the unit together. This will also push the cable into the cord grip, holding it tight.

The whole design of this connection unit is rated at 16A and offers a simple way of carrying out any future replacement or testing of the circuit. One of the beauties of this system is that the connector will fit through a 30mm diameter hole, which is a far cry from the days when we used the small circular junction boxes and then found that they wouldn't fit through the light holes – a very harsh lesson learnt.

There's no need for a screwdriver, as its strip and push, and there are no live accessible parts, making the system basically maintenance-free.

The T-Connector plug and socket set that was sent to me by Quickwire was already flexed, plus it also had the ferruled trailing flex end ready for termination into the light position. You can obtain these in a variety of styles (with or without the flex) according to what best suits your application.

Again, this mode will save even more time (though may cost a little bit more) and serves to make the whole process easier and quicker. It also makes life less daunting for the lucky individual who has been tasked with undertaking all the terminations. There's nothing worse than knowing you've got a lot of downlights to connect

and only a limited time to carry this out.

For this review I had two different projects to utilise the products on, with ten downlights in total to connect, and I found that I was able to save time, hassle and money throughout.

Although I was a bit clumsy with everything initially, all it took was a quick demonstration to understand how the cables went together, and I was off and away from that point onwards.

Get through terminations quickly The product is particularly beneficial where you have repetition works on bigger sites. I can envisage scenarios where maybe on individual who knows how to use the system properly and gains a knack of using the tool, knowing their cutting lengths etc. can go through a lot of terminations in a very quick time.

If you're carrying out a lot of downlight replacement and maintenance work, I'd highly recommend that you take a look at this handy new product. You'll wonder how you ever lived without it.

WATCH A PRODUCT DEMONSTRATION VIDEO AT: WWW.RDR.LINK/EB031

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Products IN PRACTICE

Deta’s Slimline offering takes development to new Heights Regency Heights is a new residential development in a joint venture from L&Q and Fairview Homes, standing tall and proud in the heart of the UKs largest regeneration project in Park Royal, London. When it came to selecting wiring accessories to suit the contemporary design and sophistication of these stunning new homes, Deta’s Slimline and Slimline Décor ranges were chosen.

The new development has an interesting back story and is situated on the former site of the Guinness Brewery and two Queen’s Park Rangers Stadiums. Towering over 90 metres, the three newly built courtyard blocks are now home to 807 (1, 2 and 3 bedroom) apartments.

Deta’s Slimline range of switches and sockets were fitted in all homes, having been consistently specified by leading new build developers and professional installers across the country as the white plastic wiring accessory range of choice. The Slimline design was chosen for its slim and curved profile, suitable to meet the demands of this contemporary application.

Deta’s Slimline Décor sockets and switches were chosen for all kitchens, providing complementary elegance and sophistication to the high-spec design. The developer was able to choose from Chrome or Stainless Steel finishes with either black of white moulded inserts with matching metal rockers on all switched accessories, for clean contemporary styling.

A key element to the selection of both Slimline ranges, is how the installer benefits from a simple and straightforward installation.

The Slimline ranges incorporate a number of features including captive backed out terminal screws, high visibility terminal markings and colour coded terminals, enabling an effortless installation.

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sponsored by www.electricalcharity.org

C-TEC S AFRICAN BUSINESS PARK A vast multi-functional business park in South Africa’s Cape Town is the latest prestigious site to be protected by C-TEC’s revolutionary CAST fire alarm system. Featuring a fully-kitted business hub, warehouse storage areas, high specification meeting rooms and restaurants, the park is home to a wealth of fast-growing businesses and manned 24/7 by security guards.

Brigit Group, one of South Africa’s leading fire protection companies, was charged with equipping the site with its life safety systems. Comprising a powerful 2-loop XFP addressable fire alarm panel connecting to over one hundred CAST devices including heat and smoke detectors, call points and sounder visual alarm devices, the CAST system provides the ultimate fire protection at the site. A number of input/output units have been utilised to interface the system to third-party equipment such as sprinkler valves, flow and mains switches. Beam detectors are also in operation to protect the ceiling spaces in the extensive warehouse storage areas and a repeater panel is in operation in the on-site Park Manager’s office to display data and provide an alert in the event of an emergency.

ESP SNOOKER ROOM Mark Joyce made his debut appearance at the Crucible at the start of this year’s World Snooker Championship, facing defending champion, Ronnie O’Sullivan. Although he didn’t make it through, Mark said he was thrilled to have the had the experience of playing at the Crucible and is determined to qualify and come back next year. He will continue to make the most of his own personal, purpose-designed training facility to help improve his performance. It is here that he constantly records and plays back his training sessions using the high specification CCTV system that was specified and supplied by ESP. Products from ESP’s Rekor IP CCTV range were chosen to provide Mark with the optimum solution. A total of four cameras were installed, with one acting as a security measure to cover the facility as a whole, and the other three positioned at various locations within the room so that all angles of the snooker table are covered.

AICO CORNERSTONE HOUSING Cornerstone Housing, Exeter’s largest independent housing association, operates a rolling programme of Electrical Inspection Condition Reporting (EICR) and an Electrical Improvement Programme. As part of these upgrades, Cornerstone is installing Aico’s new Multi-Sensor detectors and Ei1000G SmartLINK Gateway. The first properties to receive these are at Beacon Avenue, Exeter through their Improvement Programme and the new Affordable Rented houses under construction at Otterton near Budleigh Salterton.

Reaching out for assistance from Aico’s Regional Specification Manager for the South West, Steve Bulley, Cornerstone is currently adopting the Grade D1 LD2 specification on all new installations and any detection upgrades. Cornerstone is utilising Aico’s Ei1000G SmartLINK Gateway as well as the Multi-Sensors with Radio Frequency (RF) interconnection for ease of installation and minimal disruption to residents.

NVC LIGHTING UK DERNIER & HAMLYN In 2020, bespoke lighting manufacturer Dernier & Hamlyn moved to much improved premises that house its manufacturing and project management teams as well as a new design studio.

This new facility allows designers and their clients to come to the Surrey site so that they can work directly with Dernier & Hamlyn’s designers, engineers, and artisans to produce the bespoke lighting they want collaboratively, making the whole process more efficient. Fundamental to an effective studio is lighting that is crisp, clear and does not cause glare from screens or other equipment. Having reviewed various options, NVC Lighting’s new DALLAS low glare, linear luminaires were specified and six were installed. Dernier & Hamlyn’s Head of Design, Mark Harper, says: “As lighting specialists we obviously appreciate its importance. However, the fittings we produce are more about aesthetic effect than functionality. We chose NVC Lighting because they provide an ideal solution to our practical lighting needs and enhance our modern studio environment.”

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Products round up SCOLMORE Specialist Medical Sockets

CED ELECTRICAL Meridian Wall Packs Meridian LED Lighting continues to expand and upgrade its comprehensive range of fittings, with the latest addition featuring uniquely styled 28W outdoor wall lights with or without photocells. Manufactured in diecast aluminium, with an anthracite finish and fitted with frosted polycarbonate diffusers, each wall pack boasts 168 top quality SMD LEDs, delivering upto 3500 lumens. What’s more, up-to-date colour change technology allows the user optional colour renditions of 3000k or 4000k. Quality wise, Meridian Wall Packs have a lifespan of 50,000 hours, meet all relevant BS standards, are CE approved and offer the reassurance of a five-year warranty. Built for durable outdoor use with an IP65 rating, a wide range of possible applications extend from landscaping to courtyards and industrial sites.

GET MORE DETAILS AT: WWW.RDR.LINK/EB032

Scolmore continues to build its portfolio of products and solutions dedicated to healthcare settings, with the introduction of two new products to its Click Mode range – blue 'medical equipment only' socket outlets and green outboard rocker sockets – both manufactured from Urea Formaldehyde which provides anti-bacterial and anti-viral properties. Blue 'medical equipment only' sockets are designed to distinguish them from non-IPS electrical sockets. This helps ensure medical equipment is plugged into IPS sockets and non-medical equipment is plugged into non-IPS sockets. The introduction of the new sockets means that specifiers, contractors and installers can provide healthcare establishments with products that meet the requirements of MEIGaN (Medical Electrical Installation Guidance Notes).

Available in one- and two-gang switched and unswitched options, with clean earth terminals provided as standard, the sockets feature laser-etched white lettering. The new green outboard rocker sockets provide installers with a colour differential for supply being switched and are an addition to the red versions that are already available.

GET MORE DETAILS AT: WWW.RDR.LINK/EB033

SNICKERS WORKWEAR Summer Range

Everyone wants to be cool and comfortable at work this summer while doing their bit for saving the planet. That’s why Snickers Workwear has integrated improved 37.5 fabric technology and ‘Verifiable Sustainability’ into its t- and polo-shirts. The new AllroundWork styles are made from highly functional waffle- structured 37.5 fabric for optimal ventilation, cooling and moisture transport to keep you feeling fresh for longer. Furthermore, the new lightweight polo and t-shirts are made of 100% recycled polyester with a bio-based, anti-odour finish to offer a smooth texture and efficient moisture transport for great working comfort.

GET MORE DETAILS AT: WWW.RDR.LINK/EB034

NIGLON New Catalogues Niglon has launched two new catalogues to keep customers up-to-date with the brand's latest offerings. The third issue of Niglon's general catalogue has just been released, featuring thousands of products that cover six core areas: circuit protection, wiring accessories, industrial accessories, cable management, general lighting, and fixing and tools.

In addition, the specific control and automation catalogue, which includes a further 600 products, has also been launched in print and online. There are a total of five ranges covering enclosures, motor control gear, relays, enclosed switchgear and panel components.

ACCESS THE CATALOGUES DIGITALLY AT: WWW.RDR.LINK/EB035

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Products round up

C-TEC Vibrating Pillow Pad Alarm

EMMA Sustainably Responsible Footwear EMMA will help you reduce your carbon footprint by supplying safety footwear that’s completely made from a combination of recycled materials and those that are recyclable. Every product in the EMMA range is safe for the environment with a ‘100% ‘circular’ manufacturing, usage-mapping and recycling process for every shoe and boot produced under the EMMA brand – the supply-chain partner that’s totally committed to sustainability and reducing waste. For buyers and specifiers in all industry sectors including construction and manufacturing, logistics and warehousing, office and retail, hospitality and medical, EMMA safety footwear will make a double-headed contribution to their businesses – a value for money investment in workforce-wellbeing and a commitment to improving corporate social impact.

GET MORE DETAILS AT: WWW.RDR.LINK/EB036

C-TEC has launched an innovative new vibrating pillow pad alarm.

Designed to warn the hearing impaired of a potential fire alarm or evacuation alert condition, the BF320 vibrates and pulses on and off when triggered as per the requirements of BS 5446-3.

Featuring a wide 10-30V DC voltage range, the stylishly compact device is ideal for residential, leisure and commercial projects and can be used in conjunction with the BF320JP, a new connection plate which allows it to be connected to the sounder circuit of a compatible conventional fire alarm system and also to C-TEC’s new evacuation alert system.

GET MORE DETAILS AT: WWW.RDR.LINK/EB037

NVC LIGHTING UK DALLAS Luminaire NVC Lighting UK has launched a new easy to install, low glare, linear light fitting for schools, offices and public areas. The DALLAS luminaire offers a variety of options to provide optimum flexibility for contractors and their customers. This includes: a choice of opal diffuser which provides a comfortable and uniformly lit installation or lens and specular louvre for offices and classrooms where low glare lighting is required; surface mounted or suspended fixing using the supplied steel wires (adjustable up to 1.5m) so that the light can be directed down only or bi-directionally; installation singly, in straight lines or in a choice of shapes with all variants available in 1200mm (4') and 1500mm (5') lengths; plus the option to select the latest lithium emergency packs with a choice of standard three-hours maintained (M3), self-test (STM3) and DALI addressable self-test (DAM3).

VIEW A PROMOTIONAL PRODUCT VIDEO AT: WWW.RDR.LINK/EB038

RF SOLUTIONS ELITEFOB Are you looking to meet the demands of outdoor home improvements this summer? For customers who may be looking to remote switch their garden lights, gates, water features and garage doors, this is made seamless. Using an ELITEFOB, a 4-channel wireless control system, the end user can remote switch up to 4 relay outputs from up to 200m away. Outputs can be set by the installer to operate in either momentary switching or in an ON/OFF switching mode, as well as via a set timer mode. For installation with the great outdoors in mind, the ELITE enclosure is IP68-weatherproof, meaning you can reliably place the receiver outdoors without fear of water or dust ingression. The system comes with two handy key fob transmitters, with up to 28 additional remotes able to be added.

For greater range or increased durability, end users also have the option of other controls, such as wireless gang switches for switching lights, or rugged handheld controls for heavier duty or longer-range switching. With outputs connected by screw terminals, the system is pre-paired and ready to go, making installation super easy. With two on-board power supply options available, installers also have the choice of supplying 6 – 32VDC or 110 – 230VAC. GET 39 MORE DETAILS ABOUT THE PRODUCT AT: WWW.RDR.LINK/EB039

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ESP Grey Finish Options

KNIGHTSBRIDGE Up & Down Lighting Knightsbridge is expanding its comprehensive range of decorative outdoor lighting with the introduction of its latest wall light range (product code: OWALL). The stylish, contemporary looking line-up provides options for both down- and up-lighting from a sleek cylindrical, stainless steel body that is configured to provide a choice of either single or dual source lighting. The single lamp option measures a compact 110mm in height, 60mm diameter and has a projection of 96mm. The two-lamp version is 170mm in height but with the same dimensions for diameter and projection as the single lamp version.

Available in a choice of popular finishes – black, anthracite, brushed chrome or white – the IP54-rated OWALL can take a standard sized GU10 lamp and is dimmable dependent on lamp type, further increasing the range of lighting effects. Both new versions come with a standard warranty of two years, giving peace of mind.

GET MORE DETAILS AT: WWW.RDR.LINK/EB040

ESP continues to expand its comprehensive CCTV range with the addition of a new anthracite grey finish for some of its IP camera housings. The new additions will help meet the increasing demand in the market for IP CCTV systems and for alternative colour options to suit building exteriors and interiors.

ESP’s 2MP Rekor IP Kits, which are available with a choice of dome or bullet cameras, will now have the additional option of those cameras being offered in either the new grey, or white finish. These 4 channel CCTV systems are available as two or four camera kits and provide all the component parts required to get a professional system up and running in one box. Selected cameras in the HDview IP 5MP range are also now available in a choice of grey and white. These include the 2.8-12mm lens bullet and dome cameras, the 3.6mm lens bullet and dome cameras, as well as the 2.8-12mm lens vandal resistant dome cameras. ESP’s IP66 rated deep bases are now also available in a choice of grey and white to tie in with the camera options.

GET MORE DETAILS AT: WWW.RDR.LINK/EB041

BRANDSAFE EV Charging Protection Range The resilient and flexible EV charge point protection range from Brandsafe is ideal for the all round protection of new or current EV charge point installations from vehicles in car park areas and features an array of durable and impact resistant bollards, wheel stops and Armco barriers. For light and medium duty applications, such as private office or public car parks, ImpactSAFE Protection Posts are available in either 600, 800 or 1000mm height options. These bollards are strong and robust and feature different colour options to suit individual requirements, offering added safety and visibility for vehicle drivers when they are either reversing up to or pulling alongside a charge point. In heavy-duty applications, ImpactSAFE Heavy Duty Bollards should be utilised. These bollards, which are available in 1000, 1300 or 1600mm height options, are highly reflective and feature shock absorbing rubber buffers to deflect the force of impact away from critical areas, offering the requisite protective benefits for industrial use.

GET MORE DETAILS AT: WWW.RDR.LINK/EB042

SCHNEIDER ELECTRIC Lisse Weatherproof Range Launched this month, Lisse Weatherproof comprises a full range of switch and socket modules with secure locking tab to maintain full IP66 rating. The enclosures have the benefit of conduit access via either 20mm or 25mm round conduit, gel flex entry for added IP protection, and the facility to add a padlock for additional security. Multi-purpose enclosures are available to enable easy adaptation for each application. Any Lisse white moulded accessory can be fitted into the weatherproof enclosures.

GET MORE DETAILS AT: WWW.RDR.LINK/EB043

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Products round up

Lightwave helps to start them young West College Scotland has taken a step into the future by incorporating Lightwave PRO training content within its SECTT accredited electrical apprentice course.

Smart home technology is finding its way into the average home, so the next generation of electricians needs to be ready to meet this trend head-on.

Your future clients will want to monitor their homes from anywhere, while controlling their heating, lighting and appliances through voice commands and mobile Apps.

Further evidence of the rise in smart technology is seen in the results of a recent Smart Homes Week survey, which reveals 57% of British homes contain smart devices. Additionally, a report from John Burns Real Estate Consulting showed that 65% of people buying a house would pay more for a 'smart' home.

In partnership with the Scottish Joint Industry Board and SECTT, West College Scotland provides Apprentice and Adult Electrotechnical Training Programmes. The college is embracing the moves towards future technologies by incorporating Lightwave PRO training content within its normal curriculum.

The SJIB programme has always delivered a solid knowledge and understanding of a variety of electrical installation works to electrical apprentices. However, with the development of a new SVQ in Electrical Installation last year, the development group took the opportunity to embrace smart technology for all approved centres in Scotland.

Barrie McKay, SECTT Training Manager, explains: “We need the younger generation of electricians coming through to be aware of smart and renewable technology, to ensure these technologies are adopted more readily. Lightwave has been extremely supportive and SECTT is keen to see this partnership grow over the coming years.”

Seeing the Lightwave Lightwave is a British manufacturer of IoT connected (AKA ‘smart’) electrical accessories – dimmers, sockets, relays and sensors.

These clever devices can be installed as a retrofit smart home solution using traditional wiring – with or without a neutral. The Lightwave system allows installers to expand the boundaries of traditional control and works with Alexa, Google Assistant and Apple HomeKit. 82 June 2021 PROFESSIONAL ELECTRICIAN

What is Lightwave PRO? Lightwave PRO is a training course and membership benefits programme that is designed to help electrical installers to improve their skill-set and understanding. Lightwave hosts a PRO webinar every Friday at 10am, and it’s free to join.

LEARN MORE ABOUT THE LIGHTWAVE PRO PROGRAMME AT: WWW.RDR.LINK/EB044

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MEGGER DCM1500S Clamp Meter

KNIPEX StepCut Cable Shears KNIPEX StepCut Cable Shears take the effort out of cutting cables and wires or strands can be cut one after the other with its stepped blades, reducing the effort required by up to 40%. The StepCut makes it easier to cut single and multi-conductor cables made of copper and aluminium, up to a diameter of 15mm (50mm²). Solid NYM cables can be cut easily and precisely up to a maximum of 5 x 4mm². The stepped blades, with a milled serrated edge on the front and a flat edge on the back, have been additionally induction-hardened. The innovative step cutting allows for a clean cut without the cables being crushed in the cutting process. The KNIPEX StepCut is only 160mm long and therefore weighs relatively little. In addition, the ergonomic design of the handles enables an optimum cutting feel, even with larger diameters. A pinch guard also prevents injuries; the bolted joint makes the cable shears precise and smooth-running.

WATCH A DEMO VIDEO AT: WWW.RDR.LINK/EB045

Capable of measuring AC voltage up to 1000 V and DC voltage up to 2000 V, the new DCM1500S multifunction clamp meter from Megger is supplied complete with an MC4PV plug for direct voltage measurement from solar panels, as well as standard test leads. These features, together with the ability to measure AC or DC current up to 1500 A, make the DCM1500S an ideal choice for electricians who work on solar PV systems.

The compact handheld instrument also provides a wide range of other useful functions which, together with its capacity for storing up to 4000 test results, make it a convenient and versatile aid for testing on low-voltage installations of all kinds. Stored results are downloaded via a wireless Bluetooth connection which can also be used to stream measured values in real time to a smartphone or tablet running Megger Link. This new App is available free for iOS and Android devices. Once stored results have been transferred to the tablet or smartphone, they can easily be exported for use in spreadsheets and reports. Designed from the outset for safe operation, even when working with the high voltages often found in PV systems, the DCM1500S fully meets the requirements of IEC 61010 for CAT III 1000 V and CAT IV 600 V applications.

VIEW THE PRODUCT TECH DATA SHEET AT: WWW.RDR.LINK/EB046

NIGHTSEARCHER Galaxy Pro 6K Floodlight Nightsearcher has announced the launch of the new Galaxy Pro 6K professional rechargeable floodlight – an upgraded version of the popular Galaxy Pro. The product comes in a robust housing, made from the toughest composite materials and offers 6000 Lumens light output, along with a 60m beam distance.

Four light levels are available, and the unit is capable of 2.5 – 60 hours runtime. It features a hybrid design, powered by internal battery or AC charger, and is lightweight at just 1.5kg.

Drop-tested to a distance of 2.5m, the Galaxy Pro 6K is IP54 rated, utilises a Li-ion battery and offers battery status indication for the user. It comes supplied with AC mains charger (optional vehicle charger also available) with a variety of colours to choose from.

WATCH THE PRODUCT DEMO VIDEO AT: WWW.RDR.LINK/EB047

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Products round up

Smart+ thinking with new LEDVANCE range LEDVANCE has launched its portfolio of smart luminaires by introducing new wall and ceiling luminaires, outdoor luminaires, security camera and flex strips.

The wall and ceiling assortment includes round luminaires in a modern and decorative design as well as sleek and timeless panel luminaires. For outdoor installations, LEDVANCE offers products that will meet increased customer demand for mood and decorative lighting and security purposes.

Smart+ WiFi PLANON The smart panel luminaires offer a timeless, pure and sleek design that will slot seamlessly into any indoor installation. The Smart+ PLANON comes in three different form factors including square-shaped versions with 300, 400 or 600mm (20W/ 28W/ 40W) side length, as frameless rectangular option in six different sizes (20W/ 28W/ 35W/ 40W) or as frameless round luminaires with two diameters (20W/ 28W). All Smart+ WIFI PLANON models feature Tuneable White and some also RGB function, and can be connected via WiFi. Smart+ WiFi Flood Multicolour With their slim, lightweight, robust and durable design, the Smart+ WiFi Flood luminaires are ideal for installers aiming to achieve a colourful garden illumination. The luminaire’s tempered

84 June 2021 PROFESSIONAL ELECTRICIAN

glass cover with semi-frosted finish allows for a very homogenous illumination. The luminaires can be controlled by App or a voice controlled speaker device within the local WiFi, to change colours, dim the light or to switch it on/off. The IP65 certified luminaries are available in four versions.

Smart+ WiFi Flood Camera The new Smart+ WiFi Flood Camera combines a sensor luminaire with rotatable luminaire head and camera security function. Its 180° sensor detection range, 5-10m sensor range and high brightness of 1800lm ensure a high level of safety that will give customers peace of mind with regards to security.

Flex Strips SMART+ WiFi Neon Flex RGBW The new Smart+ WIFI Neon Flex strip offers a diffuse light appearance with invisible single LED dots for colourful light accents in indoor and outdoor environments alike, offering installers’ full flexibility. They feature two different white light colours as well as RGB and (tuneable) white in one strip. The App- or speaker-controlled smart LED strips are available as 3m and 5m versions.

GET MORE DETAILS ABOUT THE LEDVANCE SMART+ RANGE AT: WWW.RDR.LINK/EB048

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ESP Revamped RekorHD Range

KNIGHTSBRIDGE FASTCHARGE Socket Range Domestic USB charging points continue to grow in popularity with homeowners, and Knightsbridge is leading the trend with the introduction of 230V 13A two-gang switched sockets that uniquely support FASTCHARGE in two USB ports.

The sockets have either a Type-A USB port, for the most encountered chargers, and a Type-C, which is fast becoming the device charging standard; or two Type-A ports. In either combination, however, both ports are FASTCHARGE enabled.

This means that a device compatible with QC2.0/ QC3.0 (Quick Charge) or PD FASTCHARGE can achieve up to a 50% charge in 30 minutes or less. Both outlets are capable of delivering between 5V DC and 12V DC at a maximum of 3A. Standard charging mode provides up to 10W for both USB types; although charging rates depend on the type of device, for instance, mobile phones ‘determine’ how much power to draw.

The total output is a maximum of 4A when both outlets are in use. The Knightsbridge sockets are unique in the market in being able to shift voltages up to 9 or 12V in either port to achieve 18W. Finish options for both socket types include Matt White, Matt Black and Brushed Chrome from its Screwless range and Brushed Chrome in Raised Edged Square. A choice of pin inserts in white, grey or black is available for all Brushed Chrome models. Finally, all Knightsbridge USB FASTCHARGE 13A two-gang switched sockets are warrantied for two years.

VIEW THE LATEST KNIGHTSBRIDGE CATALOGUE AT: WWW.RDR.LINK/EB049

The latest product category to come under development by ESP is CCTV, with a revamp of the RekorHD 2MP CCTV range. Available in kit form, Rekor HD provides all the elements required to get a system up and running in one box – making it popular with installers because of the convenience, whilst offering wholesalers the advantage of ease of ordering and stocking. The only additional item required is a monitor to access the menu and system display. The systems have been designed with ease of set up as a key feature, including the option for remote monitoring via smartphone or tablet, using ESP’s specially developed ESP View App. The revamped range introduces new and improved cameras, which feature contemporary styling and robust metal housings. The infrared capture has been increased from 20 to 30 meters and the range now includes intelligent function, with perimeter intrusion detection and line crossing detection offering improved functionality compared with the traditional motion detection feature. The new Rekor HD kits include a stylish 4-channel DVR, pre-installed premium surveillance hard drive, cameras, camera cables, system power supply, mouse and HDMI cable. The menu is designed to be very user-friendly and is navigated via mouse control.

WATCH A SUPPORTING VIDEO AT: WWW.RDR.LINK/EB050

EUROLITE WIRING ACCESSORIES Euroseal Weatherproof Range The Euroseal weatherproof utility range from Eurolite Wiring Accessories has hit the market, ready to cater for all those outdoor and tough environments.

Designed to be both functional and practical, the range includes 13A 1 gang and 2 gang lockable socket outlets with both switched and unswitched versions, alongside 1 gang and 2 gang switches with neon light. The lockable socket covers offer IP66 level protection to prevent water and dust ingress, making them the first choice for outdoor environments and workshops. Manufactured from robust, impact resistant grey polycarbonate, Euroseal is UV resistant, fully certified to British Standards and comes with a 25-year guarantee. With contractors in mind, the product has been designed with multiple knock-out entries for easier cable access.

VIEW THE FULL WEATHERPROOF RANGE AT: WWW.RDR.LINK/EB051

PROFESSIONAL ELECTRICIAN June 2021 85

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Products round up

Improved light quality for industrial spaces Large indoor spaces require suitable illumination for safety and comfort. Areas such as manufacturing facilities, warehouses, large department stores and factories are typically vast and cover a lot of vertical and horizontal space. These areas require high output, low-glare fixtures that are efficient and cost-effective.

While warehouse and industrial settings typically use lighting technologies like metal halide, high-pressure sodium and fluorescent lights, it has been proven that LED lighting outperforms its conventional counterparts in both efficiency and efficacy.

For a well-lit application area between 8m and 15m height, such as primary production and processing sites, inspection areas, sports halls, warehouses and distribution centers, the Duros high bay from Tungsram offers a simple and effective design, along with additional features that result in cost savings both during the installation phase and future operation.

This industrial lighting fixture was specially designed to withstand harsh environments and meet the lighting needs and requirements of commercial areas, while considering the environment and luminosity needs of the work environment.

They're heavy-duty, well-constructed, and use cutting edge LED technology to save energy costs, providing an optimised return on investment. Achieving an excellent efficacy of up to 153 lm/W and brightness packages up to 30,000 lumens, a 50-70% saving on energy consumption can be achieved.

The new Duros high bay is available with the most-requested, uniform optical distributions, delivering lighting where you require it. Narrow light distributions focus the light and correct illumination levels on the floor and aisle racks, while wide light distribution is best for warehouses’ picking and loading areas.

The correct lighting in a warehouse can improve visibility and productivity in the workspace. Improved glare control with UGR (Unified Glare Rating) value < 22, together with sensors (daylight and motion), allow better visual comfort and a safer working environment for employees.

This new IP66 and IK08 rated LED fixture offers an exceptional mixture of value and performance for high bay applications 86 June 2021 PROFESSIONAL ELECTRICIAN

requiring high water and impact resistance, while the ISO 9001 certified European manufacturing guarantees product quality, 60,000 – 80,000 hours lifetime and high reliability. Clever features like prefabricated brackets make installation fast and easy, reducing installation costs and time.

VIEW THE TUNGSRAM E-CATALOGUE AT: WWW.RDR.LINK/EB052

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PROTECTING PEOPLE & PROPERTY

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088_PE_JUNE21_Layout 1 05/05/2021 22:20 Page 88

CAUGHT ON

C A M E R A MATT PALMESE: I've just purchased my first house and started to change the lights around a bit before finding this beauty in the wall. I ended up rewiring the whole lighting circuit as that seemed the easiest way.

SOCIAL SNAPS! DANIEL DEMPSTER: Here's one for you – MCB still held on and the client said they could hear buzzing with a burning smell. This is a bus bar for floor boxes that had got wet.

QUALITY ELECTRICIAN: This is a belter! Light switch joints complete with dimmer switch instructions that fold out from the wall. How very thoughtful...!

AARON GOLDTHORPE: Today's find on an EICR – cables live and rather than replacing the light, the tenant decided to screw the photocell light to the side of the existing mains light.

88 June 2021 PROFESSIONAL ELECTRICIAN

SMARTRR ELECTRICAL: Who's seen these state of the art DIN rail enclosures before?

They're so discreet you'll hardly notice they're there!

Supposedly, they come as standard when you buy a new build £600,000 house.

088_PE_JUNE21_Layout 1 05/05/2021 22:21 Page 89

JURASSIC ELECTRICS: Send help...!

LEC-ETEC SOLUTIONS: I think the last person may have been cutting corners...!

ROB SYKES ELECTRICS: Nice find today – meter tails below the consumer unit with the junction box screwed to the wall in front of it. It's probably been like that for 20 years.

ANDREW WARBURTON: Found this in the 'for sale' section. This is genuinely what people do...!

UMAR UBA: If you look closely you can see a roasted snake in our changeover switch. Taken at Kashim Ibrahim Library in Nigeria.

Get your regular fix of CAUGHT ON CAMERA! PE’s website includes weekly Caught on Camera ‘Exclusives’, featuring the best (and worst) of the shocking snaps that readers have posted to our Twitter, Facebook and Instagram pages. Don’t forget to tag us in on your tweets, or DM us your pictures and caption directly on Facebook, and you may just see your pictures featured on these pages or our site.

PROFESSIONAL ELECTRICIAN June 2021 89

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ADVERTISER INDEX Here is a useful summary of all the adverts that appear in this issue of Professional Electrician.

Each is listed with its page number and a direct URL that will get you straight to the relevant online information.

ABC .................................................................................. Page 78 www.rdr.link/EB100 BIG RED FIRE Ltd ........................................................ Page 69 www.rdr.link/EB101 Bird Home Automation Group ................................ Page 67 www.rdr.link/EB102 Carl Kammerling International Ltd......................... Page 73 www.rdr.link/EB103 CircPro (UK) Ltd........................................................... Page 59 www.rdr.link/EB104 C-TEC Ltd ....................................................................... Page 63 www.rdr.link/EB105 DETA Electrical Company Ltd ................................. Page 63 www.rdr.link/EB106 DETA Electrical Company Ltd ................................. Page 69 www.rdr.link/EB107 Electrorad UK Ltd ......................................................... Page 15 www.rdr.link/EB108 ELEX .............................................................. Inside Back Cover www.rdr.link/EB109 Elite Security Products Ltd....................................... Page 64 www.rdr.link/EB110 Ford Motor Co Ltd........................................................ Page 10 www.rdr.link/EB111 Forum Lighting Solutions ......................................... Page 64 www.rdr.link/EB112 FS Cables Ltd................................................................ Page 67 www.rdr.link/EB113 Hamilton Litestat .......................................................... Page 61 www.rdr.link/EB114 Honeywell ....................................................................... Page 41 www.rdr.link/EB115 Hudson Lighting Ltd................................................... Page 83 www.rdr.link/EB116 Hultafors Group UK Ltd ............................................... Page 6 www.rdr.link/EB117 IDEAL INDUSTRIES EMEA........................................ Page 34 www.rdr.link/EB118 Live Electrical Distribution UK Ltd...... Inside Front Cover www.rdr.link/EB119 Megger Ltd .................................................................... Page 22 www.rdr.link/EB120 Metrel UK Ltd ............................................................... Page 28 www.rdr.link/EB121

ML Accessories Ltd..................................................... Page 45 www.rdr.link/EB122 Mr. Resistor ................................................................... Page 83 www.rdr.link/EB123 NAPIT ............................................................................... Page 31 www.rdr.link/EB124 National Ventilation Ltd ............................................ Page 79 www.rdr.link/EB125 NET................................................................................... Page 47 www.rdr.link/EB126 Niglon Ltd ............................................................... Pages 12, 13 www.rdr.link/EB127 Ovia Lighting................................................................. Page 54 www.rdr.link/EB128 Prefect Controls Ltd.................................................... Page 67 www.rdr.link/EB129 Project Better Energy.......................................... Pages 16, 17 www.rdr.link/EB130 Ring .................................................................................. Page 78 www.rdr.link/EB131 Robert Bosch Ltd......................................................... Page 25 www.rdr.link/EB132 Saxby Lighting.............................................................. Page 38 www.rdr.link/EB133 Schneider Electric ................................................... Pages 8, 9 www.rdr.link/EB134 Scolmore International Ltd .................................. Pages 4, 5 www.rdr.link/EB135 Selectric.......................................................................... Page 59 www.rdr.link/EB136 Tesco Mobile Ltd .......................................................... Page 21 www.rdr.link/EB137 Test Instrument Solutions Ltd........... Outside Back Cover www.rdr.link/EB138 Timeguard Ltd ............................................................... Page 51 www.rdr.link/EB139 TRADE-DOCS................................................................ Page 54 www.rdr.link/EB140 Vauxhall Motors Ltd .................................................... Page 18 www.rdr.link/EB141 Zzeus Training Ltd ...................................................... Page 48 www.rdr.link/EB142

NEW ELEX MAG AD 285 PE_Layout 1 28/09/2020 10:50 Page 1

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