Professional Electrician & Installer February 2023

16 ROBUS gives more details about the plans it has in place to improve the circular economy

19 One electrician’s path from prison to a fulfilling career

36 Why business success is based on consistency rather than greatness

39 Identifying the different types of control cables and why a new certification scheme should help to improve the quality of cables being sourced and used

52 The additional revenue streams electricians could be generating by segueing into solar, as well as the core training needed to take on PV installations

55 With energy savings high on the agenda for customers in 2023, we learn more about the benefits of utilising water tank control

45 Exploring the different types of hearing assistance solutions available

56 The team at LEDVANCE shine a light on the latest storage and production solutions

29 What type of lighting is best for use on snooker tables?

31 Following Amendment 2 to the 18th Edition Wiring Regulations, the team at Electrium provide us with more detail as to the correct use of RCBOs in the workplace

32 The experts at Vent-Axia provide advice on Part F of the Building Regulations for commercial and industrial buildings

34 Taking a closer look at the requirements for automatic disconnection in case of a fault

48 Unicrimp adds a brand new category to its cable accessories portfolio

51 What is the outlook for the electric vehicle industry and what can we take away from last year?

assistance solutions explained

56 Reece Hardy tries out the IDEAL 61-847 Dual Laser Targeting Infrared Thermometer

62 Casting a glance at the latest projects and products installed on them

64 Rounding-up the newest products, tools and equipment to help you in your work

Prize Draw

15 WIN! A solid silver bar and coins are up for grabs with Knightsbridge

Meet the team

Editor

RICHARD BOWLER

email: pe@hamerville co uk

Digital Manager

REBECCA MCGEOCH

email: rmcgeoch@hamerville co uk

Digital Assistant

ADAM ROBERTS

email: aroberts@hamerville co uk

Advertisement Manager

ANTHONY SCOTT

email: ascott@hamerville co uk

Assistant Advertisement Manager

IAN TURNER

email: ianturner@hamerville co uk

Design ADEEL QADRI

Production Assistant

KERRI SMITH

Group Production Manager

CAROL PADGETT

Distribution Manager

KARL CLARK

Managing Editor

TERRY SMITH

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Published by:

HAMERVILLE MEDIA GROUP

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PROFESSIONAL ELECTRICIAN is the business journal for the electrical contracting industry It is available to the trade at leading electrical wholesalers throughout the UK © 2023

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I t ’s ‘ t o o l ’s g o l d ’ f o r

t h i e v e s a s ‘ v a n

c o n t i n u e s t o b i t e

According to recent research by UK price comparison website, Compare the Market, levels of van theft are predicted to double to 20,000 in the next decade following an 81% increase in the period from 2015 to 2019

Using UK van theft data, they’ve predicted that the number of vans stolen each year will rise to 20,000 by 2030, with an average of 56 vans stolen each day in the UK – a 70% increase from predicted 2022 figures.

Unsurprisingly, tools are the most commonly stolen items from van break-ins This hurts businesses and forces tradespeople to invest even more into equipment for their work Nearly 67% of break-ins include having tools stolen, and research shows that only 1% are ever recovered due to their high resale value, leaving a devasting impact on tradespeople and their ability to do their job

in light of the difficulties that our country will continue to face this year

It’s an usual situation that trade professionals find themselves in, with their ‘mobile office’ essentially containing everything that they need to do their job on a daily basis – the van providing the means of transportation, and the tools inside essential for the undertaking of work It’s understandable that individuals would choose to insure against loss of the most expensive asset (the van) but the tools are just as valuable

Image References (Adobe Stock):

Pg 15 Silver scene © BillionPhotos

Pg 16 Circular economy © Paradee

Pg 19 Prison cell © Anthony Brown

Pg 20 New direction © Paradee

Pg 23 CPD sign © TreenaBeena

Pg 39 Control centre © Leonidkis

Furthermore, new data released by car and leasing company Vanarama has revealed that just 6% of tradespeople in the UK protected their tools when insuring their van in the last year, with even less (4 5%) the year before Vanarama analysed the number of van insurance policies they sold and compared them against how many of those tradesman also took out tools insurance The tool theft insurance data is made only more shocking when looking at tool theft figures from the last year which are up by a quarter While tradespeople seem reluctant to insure their tools, they’re not against insuring the value of their vehicles. GAP insurance was taken on by 55% of van drivers

It’s no secret that the recent struggles the UK has faced, including the pandemic and the cost of living crisis that we’re currently embroiled in, have led to a rise in desperate, unscrupulous individuals who will think nothing of stealing an individual’s assets (and in the case of trade professionals, the key items that they require for their livelihood), often in broad daylight

And let’s not be fooled into thinking that situation will change anytime soon, especially

Perhaps some professionals have been led to believe that as long as the van is covered, the assets inside are as well, but clearly this is not the case in the majority of circumstances It’s therefore vital that you protect your everyday tools at the same time With more trade professionals sharing stories every day of van break-ins and thefts, one wonders how we’ll overcome this challenge universally Cutting off the arms and hands of convicted offenders to create a deterrent would be a great start, but in the highly likely scenario that this won’t happen, it’s up to electricians to safeguard their own interests through the use of sensible safeguards such as van alarms, CCTV cameras and tool storage solutions

Electricians talk regularly about the frustrations they face with customers cutting corners to save money, which we all know is likely to cost more in the long run That same consideration needs applying by trade professionals when it comes to safeguarding their most prized assets – the ‘entire’ mobile office, including the tools inside – especially in these times where so many thieves believe it is open-season to take what they want, when they want

Have a good month and enjoy the issue

NAPIT welcomes change to de-energisation and re-energisation works

NAPIT has expressed its delight at the decision taken by OFGEM to approve Distribution Connection and Use of System Agreement (DCUSA) Change Proposal 394 to widen the scope of DCUSA to allow any authorised REC accredited meter operator to carry out de-energisation and re-energisation works

This Change Proposal, which will be implemented on 29th June, will allow any Retail Energy Code (REC) accredited Meter Equipment Manager (MEM), in the capacity of a Safe Isolations Provider (SIP), to carry out de-energisation and re-energisation works and if reasonably necessary adjust the terminals or terminate/replace the customer tails of the meter at metering points at which they are not the appointed MEM

NAPIT has been calling for action to be taken to make the process of requesting the removal and replacement of a service cut-out fuse simpler for over a decade following concerns raised by members on wait times, cost differences, challenges getting through to the right department and receiving conflicting information about the right thing to do

Whilst the organisation’s preferred option to allow registered, qualified electrical contractors to perform this role is not currently permitted, it is a welcome positive step that accredited MEM’s will be able to perform de-energisation and re-energisation works from the end of June

NAPIT has supported the Change Proposal process over the last 18 months, actively contributing to the stakeholder meetings, and providing empirical evidence, through member survey

results, to assist with justifying the need for change It is hoped this change will make the process of requesting and arranging the removal and replacement of a service cut-out fuse quicker and easier, thereby enhancing electrical safety standards by reducing wait times, and by reducing the number of unauthorised service cut-out fuse removals

Makita celebrates 50 years with anniversary promotion

To celebrate a half century in the UK market, Makita has launched a special 50th anniversary promotion, offering end users the opportunity to claim free products with the purchase of selected items from its range.

With the purchase of either the18V LXT Combi Drill Kit DHP482JX14, or DHP484TJX9, or DHP485TJX8, end users can select either a free USB Adaptor (ADP05) to power mobile devices via their Makita LXT batteries or Makita’s 18V LXT DML186 LED Torch

Alternatively, purchasing one of the 2-Piece Combo Kits with 18V Combi Drill and Jigsaw (either the DLX2202TJ1 or DLX2134TJ) gives the opportunity to choose between a free DAB+ Site Radio (DMR110) or a free 18V LXT 5 0Ah Battery (BL1850B).

Makita has also included a free

100-Piece Drill and Screwdriver Bit Set (B-53811) in the promotional offer that can be redeemed with the purchase of the 18V LXT Combi Drill (DHP453F001) or the Brushless Combi Drill (DHP485T001).

Kevin Brannigan, Marketing Manager at Makita UK, said: “This has been a very exciting year in celebrating 50 years of successful operation in the UK To thank our customers, we’re delighted to offer a fantastic choice of free products and we’ve even included some of our most popular LXT products in the promotion ”

The redemption offer runs until 31st March Customers who have purchased any of the qualifying models from an authorised dealer must register their purchase online within 28 days of making their purchase to claim their free product On successful application, customers will receive their free gift after 30 days

Head-on Electrical charges ahead with eVito

Hull-based Head-on Electrical has taken a positive stride towards switching its entire van fleet to clean, green battery power.

The successful contractor runs a fleet of 12 vans, each racked to carry tools, cabling and other components used by its electricians to take on assignments for a wide range of commercial and domestic clients – including the installation of electric vehicle recharging points

Tony Fethon, who established the company with brother James, said: “Given that an increasing amount of our work is in the provision of charging infrastructure to help customers switch over to electric vehicles, it makes obvious sense for us to be running battery-powered vans on our own fleet

“The Mercedes-Benz eVito is the first of many, and is already proving to be a great mobile advertisement for our company as well as a highly effective and efficient performer.

“Moving to electric transportation will be a major step forward in our strategic goal to reduce the impact of our activities on the local environment as much as possible and make the company as sustainable as it can be”

The keys to the eVito were handed to Senior Electrician, Paul Sinclair, who said: “I’d never driven an electric vehicle before but

Tool calendar raises funds for children’s charity

making the transition was no problem at all I love driving the eVito – it’s much smoother and quieter than a diesel van, and with full torque available from a standstill the performance feels effortless.”

Following the launch of its 2022 tool advent calendar at the end of last year, Draper Tools has made a significant donation to children’s charity, Cash for Kids.

With Christmas being the season of goodwill, the company pledged to donate £1 from the sale of every calendar to the charity The calendar proved so popular that it raised £2,000, which was recently presented to the charity alongside a bumper donation of toys and gifts for the charity’s Mission Christmas appeal

Cash for Kids supports families facing financial hardship. In light of the cost of living crisis and the difficult choices being faced by many families in the region, the Draper Tools team wanted to extend its support by raising funds through the sale of its advent calendar

NICEIC has made a charitable donation of over £10,000 to the Electrical Industries Charity (EIC).

The sizeable sum, confirmed before Christmas, was raised through several activities, including NICEIC quiz nights and the company's customer satisfaction survey

"We’re delighted to have been able to provide this much-needed support to such a worthy cause," said NICEIC’s Head of Marketing, James Ellis

"I would like to say a special thank you to the many NICEIC businesses who took part in the quizzes and completed our survey The amount raised is a direct result of your actions, with £1 being donated by NICEIC for every completed survey

"Added to that, your generous donations from the quiz nights were also match-funded by NICEIC, making this a true team effort "

Offering a broad range of services, including but not limited to, mental health support, debt advice and financial relief in immediate need, the EIC exists to protect everyone associated with the electrical and energy industries

If you’re a member of the electrical Industry and you or a family member need assistance, please reach out to the charity to see what options are available You can do this by emailing: support@electricalcharity.org or by calling the confidential helpline on: 0800 652 1618

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

EIC receives £10,000 donation from NICEIC

Temporary Power courses announced for 2023

James Eade, a leading expert on temporary electrical power safety, has announced the availability of his popular electrical safety training courses for 2023.

James, who trained almost 500 professionals in event, touring, theatre, film and television during 2022 alone, is chairman of the British Standard 7909 committee and author of The IET Practitioner’s Guide to Temporary Power Systems and the IET Code of Practice on In-service Inspection and Testing of Electrical Equipment (ISITEE), 5th edition

Among a range of courses being offered for this year are one-day and three-day courses on the new 2023 edition of BS 7909, as well as courses providing important updates on ISITEE (which replaces PAT Testing) and new guidance for generator earthing and bonding.

Courses include the three-day Jet 7909, which covers the vital understanding and application of BS 7909 to temporary event power systems Next, Jet 2377 covers the revised 5th edition of the IET Code of Practice on In-service Inspection and Testing of Electrical Equipment (ISITEE) and changes to what was known as ‘PAT testing’ The structure includes a basic introduction to electrical theory including the interaction of current, resistance, voltage and power

Short courses include the new City & Guilds in the Practical Application of Earthing and Protective Bonding, developed to teach the basics of James Eade’s IET Practitioner’s Guide to Temporary Power Systems. Also available

is a one-day course on how the IET Wiring Regulations and BS 7909 apply to temporary events, why they’re relevant and how compliance isn’t necessarily difficult to achieve!

Record breaking year for THE WIRE

THE WIRE, NICEIC's hit technical webinar programme, has smashed all previous records, more than doubling its reach in 2022.

Delivering 22 episodes between January and December last year, the season racked up an impressive 80,000 views through its live broadcasts and on-demand service

Furthermore, audiences for the live broadcasts were up a whopping 50% vs the previous year with average viewing numbers exceeding 1,300 per episode.

Paul Collins, NICEIC's Head of Technical Services, said: “We’ve identified a real winning formula with THE WIRE. The feedback received shows we are consistently hitting 4 7 out of 5 stars, with comments indicating that the topics covered are both relevant and timely Our Amendment 2 episode was a great

example Timed to coincide with the day the details were released, this episode has now been viewed over 10,000 times

“We’re confident our 2023 line-up will deliver more success January kicked off by covering covering EICR Coding –Amendment 2 Special, Everything you need to know about SPDs, Consumer Unit Replacement and Shedding the light on Solar”.

Free and exclusive to NICEIC registered businesses, all episodes from the 2022 series are available to watch on-demand now All CPD-certified THE WIRE webinars count towards your EAS

requirement, and for each episode watched, viewers will receive a personalised CPD certificate

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

Hudson Group strikes new partnership with Wibe

The Hudson Group, which owns RMS and Armorduct, has formed a new partnership with Wibe Group to provide specialist cable management solutions for corrosive and hazardous environments.

The collaboration will see Wibe cable ladders and Mita Glass Reinforced Polymer (GRP) containment products distributed to the UK through ‘Milton’, a new division of the Hudson Group

The long-standing Mita brand, ubiquitous in the electrical industry for over 35 years, is a leader in corrosion-resistant GRP containment products, which are ideal for extreme applications across sectors including nuclear, oil and gas, marine, pharmaceutical, and transport infrastructure

Recognised throughout the world for optimal strength and durability, Wibe cable ladders offer a highly efficient and flexible solution for the most demanding projects

Commenting on the new agreement, Hudson’s CEO Simon Hudson-Smith, said: “Wibe has a track record that spans 100 years and is universally renowned for the quality of its cable support products We’re looking forward to building on this foundation and exploring new opportunities, including the potential to collaborate with RMS and Armorduct to bolster our offer to clients across the UK ”

Patrick Arcidiacono, Chief Executive Officer, Wibe Group added: “This partnership will result in synergies that will benefit customers across a vast range of industries Through Milton, we can quickly and effectively target the UK market with specialist products that will generate efficiencies and improve the quality of cable management solutions

“An important part of the Wibe Group strategy is to join key players in cable management around the globe and by joining forces with Milton and the wider Hudson group including RMS and Armorduct, we are fulfilling our objective.”

SELECT makes appeal for apprenticeship funding

SELECT has issued an urgent appeal to Deputy First Minister John Swinney, asking him to allocate additional funding for apprenticeships to prevent a shortfall in essential training.

In a letter to the Cabinet Secretary for Covid Recovery, Alan Wilson, Managing Director of SELECT (pictured), said that more funding would be essential to prevent a shortfall in essential training of apprentices.

His appeal came at a time when the electrotechnical industry has achieved record numbers of apprentices for the second year in a row, from just over 800 last year to just under 1,000 this year, which he described as a “true vote of confidence in what is on offer”

Mr Wilson highlighted the work undertaken by the Scottish Electrical Charitable Trust (SECTT) on behalf of the Scottish Joint Industry Board (SJIB) to deliver the electrical installation apprenticeship.

He said that the cap of 660 places in SECTT’s contract with

Milton will be headed by Project Director, Paul Nolan who has worked in the electrical industry for more than three decades With extensive experience in the cable management sector, Paul has particular knowledge of extreme environment challenges

He added: “Our key aim is to provide M&E contractors and consultants with ‘fit and forget’ cable management systems Our specialist product ranges enable solutions that deliver maintenance-free peak performance for harsh and hazardous projects throughout the lifecycle of the installation

“The Mita products will bolster our specialist portfolio with GRP ladders, trays, channels, troughing and support systems that can be tailored for the most severe environments ”

Skills Development Scotland (SDS) originally meant that 300 places would be unfunded, placing a huge strain on businesses that wanted to give young people an opportunity

A further 116 places were subsequently allocated, but that still left a shortfall of 184 places which meant that the sector still faced a financial gap of £1 6 million to fund these additional apprentices

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

PUT A SILVER LINING ON 2023 WITH KNIGHTSBRIGE!

It’s a hi-ho silver jubilee for Knightsbridge, with the chance for readers to win a solid silver bar and coins.

this New Year sees Knightsbridge – one of the UK’s leading manufacturers of wiring accessories and lighting – celebrating its silver jubilee: the 25th anniversary of its foundation in north London in 1998.

Since then, with 25 years’ experience within the electrical industry behind it and more than 3,000 quality products on its books, Knightsbridge has gone on to become one of the UK’s most popular brands, not least because of the high level of service offered by its customer team.

Always a pioneer in terms of both style, design and innovative technologies, Knightsbridge’s comprehensive product ranges will enhance the amenity and finish of any d commercial or industrial space; a the company has evolved to become a major supplier of some of the highest quality solutions on the UK market today

For the latest introductions and innovations in the Knightsbridge collection, grab a copy of the newly published 2023 catalogue, featuring over 3,000 lines for all applications and demands.

WHAT CAN YOU WIN?

To help celebrate its special Silver Jubilee, Knightsbridge has teamed up with PE to launch a stunning prize draw with silver bars and coins, totalling thousands of pounds in value, to be won

One lucky verified electrical contractor

WIN

stands the chance to win a 1Kg bar of solid silver from the Royal Mint, worth (at the time of writing) over £850, plus nners-up prizes of 10 ounce Britannia silver orth around £35 each

HOW TO ENTER

FOR A CHANCE TO WIN A SILVER BAR, OR ONE OF 10 SILVER BRITANNIA RUNNERS-UP PRIZES, ENTER THE FREE PRIZE DRAW BY FILLING OUT THE CONTACT FORM AT: WWW.RDR.LINK/EAO007

Deadline for entries: 10/03/2023.

Usual T&Cs apply

WHAT GOES AROUND, COMES AROUND

as the saying goes: ‘what goes around comes around ’ And when thinking about a circular economy, this saying fits perfectly

A ‘circular economy’ operates on the principle of restoration and regeneration by design It is driven by a need to transition to more renewable energy and materials. As the earth has a finite amount of resources, the aim is to create and develop practices that enable us to develop products that reduce the reliance on these resources and instead optimise product lifecycles

To understand the necessity for a circular economy, we must first look at our current state – a linear economy In a linear economy system, we take materials from the earth, make products, and eventually throw them away as waste when we no longer need them

In a circular economy, the opposite is true We use less raw materials, design products for long life and recyclability, we share products, we use them for longer and repair things before we recycle or throw them away

The idea is to keep components in use for as long as possible and thus, ROBUS fittings will last longer as a result. This can involve improving the cycle of product development and designing for product integrity This means designing for long use, extended use, and recovery Here we have a resilient system that decouples economic activity from the consumption of raw materials which helps to benefit business, people, and the environment

What is ROBUS doing to tackle the circular economy?

As part of our Environmental, Social Governance (ESG) proposition, we’re taking steps to build circular design into our processes In becoming a Carbon neutral company in 2022, the mission is to keep moving towards opportunities that allow us to continue creating more sustainable practices and products. In order to reach this feat, we have developed a set of principles to help us to achieve a circular economy

Our three main principles are:

l Design out waste and pollution (Green/Eco manufacturing methods and component materials)

l Keep products and materials in use (Service and re-manufacturability)

l Regenerate natural systems (Design for sustainable products)

The first steps

Our mission to engage in a circular economy means we now must take necessary steps to ensure that what we’re producing is being made with sustainability in mind. This all starts with design.

When developing new products or looking at key ranges we can wholly control the design of new luminaries and look at existing key ranges to see what we can change, develop and improve

This can involve making fittings modular so users have the flexibility to swap out components or including switches to fittings to enable them to be dual

wattage, CCT selectable or dual test so users can choose one fitting to suit a range of purposes

As such we need to move away from a reliance on single use products and have a greater emphasis on innovation to keep materials in use and, prolong their lifespan and upcycle The ROBUS GOLF Modular and LUNATE Quad pro fittings are two examples of fittings which benefit from having modular parts and selectable switches

As well as this, increasing the longevity of our products by having longer warranties has been a major focus This will ensure our fittings will have more durable components and the need to replace them will be reduced For instance, our ROBUS CAPELLA now has a 10-year warranty, our longest warranty yet.

Nothing creates waste like packaging. As we all know, when we buy something, it usually comes wrapped in plastic, bubble wrap or additional film At ROBUS we have undertaken to tackle this by making our packaging as sustainable as possible This work has meant reducing all unnecessary plastic, unrecyclable materials and eliminating the need for additional film in our internal packaging.

Over 760 of our product SKUs have seen reduced plastics in their packaging, resulting in reduced plastic coming into the UK by 1 tonne per month and only increasing over time! The results speak for themselves, but we’re not finished there as we’re working on making our outer packaging more sustainable and completely recyclable

Future plans

Looking at the road ahead, a pivotal step in ensuring we’re engaging in a circular economy that ROBUS is focusing on is standardising batteries, drivers and accessories This key project will reduce the number of accessories available and will ensure that a small number of drivers, batteries and accessories will work across more of our ranges and will be replaceable instead of the end user having to buy a whole new fitting This will keep fittings in use longer, and thus

contribute to the steps of creating a circular economy

ROBUS is continuing to look at more ways to keep on the road to creating a circular economy, with plans to investigate other avenues such as ‘selling lighting as a service’ We look forward to seeing what other exciting innovations and plans the circular economy brings

“Our mission to engage in a circular economy means we now must take necessary steps to ensure that what we’re producing is being made with sustainability in mind. This all starts with design.”

A CHANCE TO CHANGE

We learn more about one electrician’s path from prison to a fulfilling career.

Last summer, UK unemployment reached its lowest point in nearly 50 years While generally a success story for the country, this figure does not consider the economy on a sector-by-sector basis. Furthermore, it creates real challenges for businesses who rely on finding people with the right skills, as the pool of suitable and available workers is smaller

Data from the Electrotechnical Skills Partnership (TESP) shows that the UK will need between 12,500 and 15,000 electricians in the next five years, and this type of shortage is also faced by other business sectors such as retail, recycling, homebuilding and hospitality. However, among a range of initiatives, leading businesses in those sectors are already working with prisons as part of their response – leaving our sector at a competitive disadvantage

In fact, the electrotechnical industry should be no different – there are a number of workshops operating within

prisons where individuals can train to become fully qualified electricians, ready to join the workforce upon release Many employers say that these people are among the best colleagues in their workforce

With reportedly 11 million people (one in six) in the UK holding some form of criminal record, businesses are already likely to have employed people who have made mistakes in their past – so it is not such a big leap to consciously look to prisons for people who may be ready and able to be trained and employed

A fresh start

For Stuart Smith, ECA Vice President and Director of ECA Member firm Stromtechs, the decision to employ an ex-offender was not a conscious one “It was pure chance,” he says “Mark (name changed for confidentiality purposes) was introduced to us by a current employee who knew him well and vouched for his strong work ethic

“During the hiring process, once Mark’s

record was disclosed, I will admit that I was concerned we could be dealing with a difficult individual But that notion was quickly dispelled – and it could not be further from reality

“I am proud to say we have gained a

“Once Mark’s record was disclosed, I will admit that I was concerned we could be dealing with a difficult individual. But that notion was quickly dispelled –and it could not be further from reality.”

loyal and hardworking employee who has fitted in with our team very well ”

For Mark, the opportunity to make a fresh start and find a fulfilling career after his incarceration was not guaranteed “After spending two and a half years inside, I was worried about my future and where I might end up,” he says.

After hearing about an apprenticeship opening at Stromtechs, Mark took some time to examine the benefits of an electrical career, and how it could align with his personal goals

“I felt that the electrical industry could offer a solid career with great prospects for progression and new knowledge,” he says “That, and a constantly changing work environment, sounded like something that could hold my interest and focus ”

Making the case

The case for looking to prisons for new electrotechnical industry entrants is already strong Prisons around the country are increasingly geared up to work with employers, and organisations such as the

New Futures Network can guide employers through the process Set up by the Ministry of Justice, its role is to understand the needs of companies large and small, and make sure the hiring process is as simple and easy as possible

While Stuart did not meet Mark through the New Futures Network, the organisation aims to make the employment of ex-offenders far more commonplace, rather than happenstance

When evaluating his job application, the point that stood out for Stuart was Mark’s clear commitment to self-improvement and the drive to succeed, despite the challenging circumstances. “I strongly believe that the best way to break the cycle of reoffending is a chance to change and a clear path to education or vocation,” says Stuart

“In our industry, which is crying out for labour, giving an ex-prisoner a chance to start again and better their situation was absolutely a no-brainer ”

Now approaching the latter part of his apprenticeship, Mark expects to qualify

as an electrical engineer within the next two years.

Stuart adds: “Mark made a mistake and spent his conviction for it. That should not affect the rest of his life He is 100 percent focused on looking forward and is working incredibly hard to gain new skills For me, and our colleagues at Stromtechs, the chance to meet and work with Mark has been truly worthwhile ”

Find out more

In its education and employment strategy, published in May 2018, the MoJ outlined its plans for reducing re-offending, which costs the country around £15bn a year Currently, only 17 per cent of ex-offenders manage to get a job on release, and many of these are part-time or very low-wage roles

It’s entirely understandable that taking the leap of actively considering and going on to hire an ex-offender may seem daunting at first. While there are clearly a number of factors to consider, experience shows that time and again, these can be addressed successfully

“I felt that the electrical industry could offer a solid career with great prospects for progression and new knowledge.”

CONTINUE YO UR P ROF E S SION A L DEVELOPMENT AT ELE X SHOW!

Taking place across two days, at six regional venues, ELEX is back for 2023. Furthermore, we’ve got great news for visitors that are serious about their CPD!

Recent changes to The Electrotechnical Assessment Specification (EAS) which sets out the minimum requirements for a business to be recognised as technically competent by a Certification or Registration Body, includes a requirement for businesses to maintain appropriate records of qualifications, training (including Continuing Professional Development) and experience

To support this requirement, EVERY ELEX seminar is now CPD accredited, ensuring those individuals who make the time and effort to attend will receive a direct certificate of completion, which can

form a key part of your ongoing Continuing Professional Development record.

With industry regulation and legislation changing constantly, the extensive ELEX seminar programme will cover an array of topics, including the latest Amendment 2 to the 18th Edition and the changes this covers, along with best practice and technical advice for professionals to get stuck into Presentations will be delivered by experts in their field and the only cost to delegates is their time.

All seminars will take place in the IET Seminar Theatre located centrally in the exhibition hall and there’s no need for delegates to pre-book, just pre-register to attend the show

Whether you need some advice on the direction the sector is heading, want to chat with manufacturers about their latest solutions, view live demonstrations of the latest products or bag yourself a great

YOUR S H OW, NEA R YO U. . .

l At a venue near you

l Across two days

l Free parking (van friendly)

l Free entry

l Free T-Shirt & a free bacon roll* (*limited to first 1,000 visitors)

l Show bargains

l Hands-on demos

l Meet manufacturers

l Networking opportunities

l CPD accredited seminars and certificates

show deal on tools and equipment from leading brands, your regional ELEX tradeshow has it all

ELEX’s first stop is at the Bolton Arena on March 9th and 10th, with visits to Alexandra Palace, Harrogate, Coventry, Exeter and Surrey later in the year

ENTER THE CPD ZONE AND EARN 1 CPD CREDIT TOWARDS YOUR PROFESSIONAL RECORD!

continuing professional development (CPD) can be broadly defined as any type of learning you undertake which increases your knowledge, understanding and experiences of a subject area or role.

To help professionals to better document and prove this process, our brand new CPD Zone contains content and articles that have been checked, verified and accredited by a third-party specialist organisation

Collectively, the content within this section has been deemed worthy of 1 CPD credit, or 1 hours’ worth of CPD

Once this content has been consumed, readers will have the opportunity to scan a QR code which will provide a bespoke, downloadable certificate that can be used as part of a

professional’s ongoing CPD record

This means that if you’re a monthly reader of PE, you could earn up to 11 credits, or 11 hours’ worth of CPD, just by reading a regular copy of your favourite independent industry magazine in 2023

DO NOT SCAN THE QR CODE

UNLESS

YOU HAVE READ ALL OF THE CONTENT WITHIN THIS SECTION!

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CODEBREAKERS

As m o re s o l a r P V i n s t a l l at i o n s a re re q u e s te d, t h e re i s a g o o d c h a n ce we w i l l s e e s o m e p o o r q u a l i t y i n s t a l l at i o n s a l o n g t h e way – i n s t a l l at i o n s w h i c h r i s k b e i n g p u t to g e t h e r w i t h l i t t l e o r n o b a s i c u n d e r s t a n d i n g o f s o l a r P V s ys te m s o r t h e i r i nte grat i o n w i t h a n ex i s t i n g i n s t a l l at i o n by d e s i gn e r s o r co nt ra c to r s.

Th e i n s t a l l at i o n i n t h i s p h o to a l s o s h ows a l a c k o f b a s i c u n d e r s t a n d i n g o f i s o l at i o n , a s t h e P V co n s u m e r u n i t c a n’t b e i s o l ate d a s i t ’s fe d f ro m t h e i n co m i n g s i d e o f a n i s o l ato r, w h i c h a l s o m e a n s i t wa s p ro b a b l y e n e rgi s e d w h i l e l i ve !

A P V i nve r te r m ay b e s u p p l i e d by a s u b - b o a rd, a s t h e i n s p e c to r p o i nt s o u t, b u t t h e s u p p l y to i t, w h i c h i s e f fe c t i ve l y a s u b - m a i n , n e e d s to b e d e s i gn e d a n d co n f i g u re d co r re c t l y Th e s t i c k e r s t at i n g ‘AC I s o l ato r ’ i s a l s o i n d i c at i n g t h at t h e m a i n C U i s p rov i d i n g i s o l at i o n . Th i s i s n o t t h e c a s e, a n d e ve n i f t h e s u b - m a i n we re fe d f ro m a n M C B, t h i s s t i l l wo u l d n’t b e

t h e c a s e Th e i s o l at i o n n e e d s to b e v i a a s e p a rate d e v i ce, w h i c h m ay o r m ay n o t b e t h e s u b - b o a rd ’s m a i n i s o l at i n g s w i tc h Th e t y p e s o f d e v i ce s u s e d m u s t a l s o b e c a p a b l e o f o p e rat i n g u n d e r o p e rat i n g co n d i t i o n s t h at w i l l a l l ow c u r re nt f l ow

b i - d i re c t i o n a l l y, a s t h i s i s a re q u i re m e nt fo r a l l ow i n g t h e g e n e rate d e n e rg y to f l ow i nto t h e u s e r ’s

n e t wo r k

S o l a r P V i n s t a l l at i o n s

c a n b e co m p l ex a n d m u s t b e d e s i gn e d a n d i n s t a l l e d

by a p p ro p r i ate l y s k i l l e d

a n d co m p e te nt p e o p l e.

Wh i c h e ve r way we l o o k at

t h i s, a l a r m b e l l s w i l l b e

r i n gi n g d u e to t h e p o o r d e s i gn c h a ra c te r i s t i c s b e i n g d i s p l aye d

The Observations, Regulation infringements and Codes applicable to this observation would be:

134.1.1, 314, 435.1 No method isolation for PV sub main supply

No overcurrent or fault current protection for PV sub-main supply

The existing switch gear and new sub-board switch gear may not allow bi-directional current ow 134.1.1,

DANNYHARMSWORTH: WE CAME ACROSS THIS ON A RECENT JOB: A SOLAR INSTALLER TOOK THE POWER FOR THE SOLAR CONSUMER UNIT DISTRIBUTION BOARD STRAIGHT OFF THE MAINS TAILS RCD RCCB WITH NO OVERCURRENT FUSING USING 2 5 MM PVC T WIN AND EARTH CABLE – VERY DANGEROUS, I THINK!

Need help with cracking those all-impor tant EICR codes? Ever y 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 pic tures through to us at: pe@hamer ville.co.uk

Whether its fault finding or an EICR, an inspector needs to understand or have a good work ing k nowledge of previous installation techniques and legac y equipment available to an installer at that given time Equipment and advanced termination devices that we use today simply weren’t around or commonplace 15+ years ago

H istorically, termination blocks and adaptable boxes (metal or plastic) were the ‘go -to’ wiring centres for many applications This t ype of arrangement was commonplace (as shown here in the photo) and I’d imagine there are thousands more still out there I f they ’re put together correc tly, they ’ll continue to give good ser vice with no requirement or need to upgrade them. Unfor tunately, they can wear with age, deteriorate and need replacement, as with any installation.

I should also point out that I see numerous modern termination devices that are damaged by heat, incorrectly sized

or not fitted in accordance with their manufacturer ’s requirements, that have failed or caused more sinister damage

In general, the photo shows a site -built wiring centre that looks to have been put together as well as a site -built centre could be I t ’s not that visually stunning, admittedly, and could have been tidier, and some identification wouldn’t go amiss, but other than the thermal damage, is it a real issue?

The thermal damage to the terminal block could be heat build-up over many years, or it could be that the circuit has been modified past its original design parameters Larger capacity accessories may have been installed, which may have caused the thermal damage

Simply upgrading the damaged terminal block with a similar accessor y or a newer variant may not solve the problem I feel the whole circuit should be investigated to ensure that the existing accessories and replacements are adequately rated and consider any

modifications to the original design

Although the original design may not be available, the equipment there now is available for inspection, and any design deficiencies can be understood via a retrospective circuit design process

TheObservations,RegulationinfringementsandCodesapplicabletothisobservationwouldbe:

Thermaldamagetoterminalblock133.2.2,133.2.4, 651.2(ii)

Possiblecircuitoverloadinganddesignissues133.2.2,133.2.4, 512.1.2

Possiblemultiplecircuitsmayrequireidentication134.1.3,514.1.2, 514.1.3

The A2:2022 18th Edition Codebreakers publication is priced at £22.00 (members) and £24.00 (non-members). It is available in both hard copy and digital versions

GERRY ARNOLD: WE DISCOVERED THIS LIT TLE FIND IN AN ADAPTABLE BOX AT A WORKING MEN’S CLUB WHERE THE W.C LIGHTS HAD STOPPED WORKING!

FI C3

C2

COMPONENTS OF AN ELECTRICAL ENERGY STORAGE SYSTEM

before we start, it should be noted that such types of storage media may be connected in various configurations to the host installation and/or any embedded generation

Manufacturer’s instructions should always be consulted

EES system components

Any EESS consists of a number of component parts, including:

l Batteries

l Inverters

l Charge/discharge control equipment

l DC/DC conversion equipment

l Thermal management equipment

l EESS control equipment

l Independent earthing arrangement (where required)

l Monitoring and metering equipment (not discussed here)

All of these components may be arranged in a series of modules comprising several of the individual functions Their functionality is summarised in this article.

EES system types

Within the scope of BS 7671, that is operating at a voltage not exceeding low voltage, an EESS may be categorised as a:

l residential EESS, or

l commercial and industrial EESS

An EESS may be designed and built for a particular application or it may be assembled from a range of component parts to provide the desired functionality. A self-contained EESS system is one in

which the components have been matched and assembled at the factory and is ready to be installed on delivery to site

EESS subsystems

Although exact terminology used in the various standards and guidance documents varies, an EESS may be constructed from a number of subsystems, including:

l the control subsystem containing the communication, management and protection functions and the user interface, and

l the primary subsystem containing the energy storage and power conversion functions and the point(s) of connection to the electrical power system

Batteries: types & characteristics

The two most commonly employed battery types in an EESS are deep-cycle lead-acid and lithium-ion

The following characteristics and factors will have an influence on choice of battery type employed:

l Operational lifespan.

This can be affected by a number of factors including:

n The frequency of discharge, and

n The depth of discharge (DOD) (greater DOD generally equates to shorter battery life)

n Characteristic calendar life (projected life irrespective of usage)

n Overcharge tolerance (lithium-ion batteries are more prone to damage than lead-acid)

l Required effective/usable energy storage capacity

l Charge/discharge efficiency.

This can be affected by factors such as:

n Battery type

n Ambient temperature

n Battery operational temperature

n Battery age

n Frequency of maintenance

l Required recovery time.

This is the time needed by an EESS, for the specific operating mode and operating conditions, to recover from a duty cycle so that it can be sufficiently recharged to serve the following duty cycle

Generally, lead-acid batteries perform less well across most of the above categories. However, they may still offer

This article from the experts at NICEIC looks at some of the component parts that may be employed in an electrical energy storage system (EESS).

Fig 2 Lithium-ion batter y

Fig 1 Example of a selfcontained EESS suitable for use in a domestic installation

the most cost-effective option in some cases based on the nature of the system and operational expectations

The arrangement of individual batteries or cells to create batteries/battery banks in order to achieve the desired terminal voltage and output current can vary. A system containing battery storage but no local generation is defined as a battery energy storage system (BESS) (see Fig 4)

Inverters: types & characteristics

An inverter is a static semi-conductor device (power converter) which converts DC to AC. Inverters often include additional functionalities, discussed later in this article

A number of types of inverter may be employed within an EESS to permit:

l Grid connection

l Standalone operation (without grid connection)

l Combination grid/standalone operation

l Bi-directional operation, which can allow output to the grid and/or the installation and also act as a charger for the storage batteries. Both grid connection and standalone bi-directional inverters are available

It should be noted that where an EESS is installed at a premises with an existing PV system designed to operate in parallel with the DNO supply only, and is not forming part of a prosumers low-voltage installation (PEI), the associated inverter will shut down when loss of mains or fluctuation in the supply characteristics outside of nominal parameters is detected

If any form of continued battery charging and/or operation of loads within the premises is required a second inverter or other power conversion equipment (charger/charge controller) will need to be

installed or the existing inverter could be replaced

This may be seen as the favourable option where the inverter has been operating for some time, as inverters are often the first component to fail and may be near end of life

Battery charger/ battery charge controller

In an EESS, an inverter/battery charger is a two-way device which converts:

l DC power from the batteries into AC to supply loads within an installation, and l AC energy into DC energy to charge batteries

A charge controller sends power in one direction only to charge the batteries whilst also preventing current from draining back into the source of supply.

Inverter/chargers are not designed to charge batteries directly from the DC current provided by an unstable source such as, for example, a PV system A charge controller is needed to match the PV output voltage to the battery and to regulate charging.

In general, an EESS will contain both an inverter/battery charger and a charge controller to ensure optimum functionality and efficiency

In the case of an EESS utilising a PV generator, there may be insufficient capacity to charge the storage batteries effectively using a charge controller alone in the winter or during extended periods of cloudy weather This can affect energy availability and so an inverter/charger will be required to keep batteries adequately charged from the grid supply.

DC/DC converter

A DC/DC converter makes it possible to:

l Raise/step-up battery output voltage

l Provide a constant DC output voltage regardless of fluctuations in battery output voltage

l Provide galvanic isolation of the battery from the rest of the EESS to provide, for example, corrosion mitigation

It can also simplify the matching of multiple battery sets to the EESS.

Battery discharge controller

A discharge controller can provide the following:

l Control of the rate of discharge

l Prevention of further discharge of batteries when their depth of discharge (DOD) limit is reached (that is, the percentage of total capacity that can be utilised)

l Feedback on battery temperature to optimise efficiency and/or minimise damage

l Control of the times at which batteries can discharge to loads

l Prevent discharge until battery charge thresholds have been reached

Battery balancer

The service life of batteries forming part of a bank can be shortened considerably by a charge imbalance

A cell or battery having even slightly higher internal leakage current in a bank of several series connected cells or batteries will cause undercharge of the whole battery in relation to the other cells or batteries to which it is connected in series, which may also be subjected to overcharging

Left untreated this can set up a cyclical passage of current between batteries or cells and a resultant temperature increase or thermal runaway. Overcharging can cause damage due to excessive gassing.

Fig 4 Basic AC-coupled, grid-connected, batter y energy storage (BESS) system

Fig 3 Deep-cycle lead-acid batter y

In the case of L-Ion batteries the aforementioned effects can result in an explosion and/or fire hazard For lead-acid batteries, undercharging can cause sulphation of the batteries/cells with the lower initial state of charge

Thermal management system

Although varying in complexity, thermal management systems maintain the component parts of an EESS within their normal operational temperature limits to maintain functionality and efficiency and to prevent thermal damage At the most basic level, this could be a thermal cut-out In more complex systems, particularly where continuity of supply is essential, it might trigger cooling equipment to start and/or instigate some degree of non-essential load shedding

Power conditioning equipment (PCE)

This term is often used where multiple components/functions such as inverters, battery chargers and controllers, DC/DC converters, battery discharge controllers and thermal management equipment are integrated into a single unit

EESS management system

This may monitor the availability and quality of the connected sources of supply, control charge and discharge operations and may also interface with external resources such as those of distributors and suppliers. It may also instigate other actions such as making/breaking the connection to a public distribution network, load shedding, information exchange and provision of information to building user/operator

Independent earthing arrangement

An EESS operating in Island mode; that is, where supply to all or part of an installation is maintained from internal sources although the supply from the grid has been disconnected, cannot rely on the earthing arrangement provided by distributor when running independently of the DNO supply (551 4 3 2 1) as doing so could place persons working on the distribution system in danger

Summary

A typical EEES consists of a number of component parts designed to provide a system which is both economical and remains reliable for its predicted service life An EEES may be assembled from a number of components or sub-sets, or may be manufactured as a self-contained system

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

QWE’VE

BEEN ASKED TO QUOTE FOR LIGHTING

TO BE SUSPENDED OVER A NUMBER OF SNOOKER TABLES APPARENTLY, THERE IS A CIBSE AND SPORTS ENGLAND (LG4) REQUIREMENT THAT THE LIGHT VALUE SHOULD BE 500 LUX ON THE TABLE WITH A MAX OF 0 8 REDUCTION FACTOR THE CUSTOMER IS CONCERNED THE FULL LED MAY HAVE A HIGH GLARE FOR THE SNOOKER PLAYERS AND THAT PARTS OF THE EXTREMES (POCKETS) MAY BE IN SHADOW. CAN YOU SUGGEST CAT 2 OR DIFFUSED LIGHTING THAT CAN REDUCE GLARE? THE TABLES ARE FULL SIZE (12 FT X 6 FT), WITH A REFLECTIVE INDEX IN THE LOW 40S OR LATE 30S

The guidelines for snooker are split into three categories based on the level of competition that is being played

Assuming that this isn’t elite level snooker and is more toward recreational, for this application 500 lux is required on the table with a desired unifor mity of 0 8 This is quite a high level of unifor mity and should ensure vir tually no shadowing

Unifor mity is the ratio of the minimum lighting level to the average lighting level in a specific area, in this case a snooker table. The higher the level of unifor mity the less difference there is between the minimum and average level of illumination If the customer has concer ns regarding the glare, we’d steer more toward a UGR friendly luminaire UGR stands for unified glare rating and measures the amount of discomfor t causing glare UGR 19 is considered a good level of glare for wor king at a computer and is at the lower end of the glare rating. In summar y, we would aim to achieve 500 lux with a unifor mity of 0 8 using a UGR 19 luminaire The Ovia Inceptor Slate is a premium range of LED panel lights with a low UGR19 diffuser, making them ideal for this type of installation

Fig 5 Batter y balancer

RCBOs IN THE WORKPLACE

In the workplace power continuity is an important factor Business services must not be interrupted by unwanted power outages. That’s why RCBOs (Residual Current Breaker with Over-Current) should be used when there is also a requirement for 30mA protection for the users of the installation Additionally, personal safety is an equally important factor

Protecting users to Amendment 2

Regulation 411.3.3 of the Wiring Regulations was revised by Amendment 2. This regulation now requires additional protection by means of a 30mA device for users of socket outlets (not rated higher than 32A) in locations where they’re liable to be used by persons of capability BA1, BA2 or BA3

The terms BA1, BA2 or BA3 probably need some further explanation Appendix 5 includes a list of external influences, and under the sub-heading of ‘Utilization’ BA refers to the capability of persons. BA1 is described as an ordinary person (a person

who is neither a skilled person nor an instructed person) BA2 as children, and BA3 as disabled.

No exceptions permitted

So, in all locations where socket outlets (not rated higher than 32A) are liable to be used by ordinary persons, disabled persons, or children, additional protection by use of a 30mA device is mandatory No exceptions are permitted

Providing protection

Providing additional protection and maintaining power continuity is actually quite easy Each circuit should be protected by an individual Type A 30mA RCBO This will meet the requirements of Regulation 411 3 3 and the requirements of the business because it will eradicate unwanted tripping and guarantee that all healthy circuits remain in service

Other considerations

In a modern workplace, school or

university environment, for example, the connected equipment, and portable devices will have a significant impact upon the design of the installation and will no doubt bring DC influences and PE currents into consideration for both the designer and installer

Regulation 531 3 2 requires protective conductor currents (standing earth leakage not due to a fault) to be limited to 9mA for a 30mA device in order to help to avoid unwanted tripping, but that can’t be achieved if several circuits are protected by one device.

Designers will not only have to take account of PE currents when dividing the installation into the necessary number of circuits, there are also the requirements of Chapter 31 & Regulations 314 1 to consider Regulation 314 1 requires the installation to be divided into the necessary number of circuits to:

- a v o i d d a n g e r a n d m i n i m i z e i n c o n v e n i e n c e i n t h e e v e n t o f a s i n g l e f a u l t ,

- take account of hazards that may arise from the failure of a single circuit

- reduce the possibility of unwanted tripping of RCDs,

- facilitate safe inspection, testing and maintenance

Wherever additional protection by a 30mA device is required each circuit should be served by an individual Type A RCBO in order to meet the requirements of BS7671, including Amendment 2

Following Amendment 2 to the 18th Edition Wiring Regulations, the team at Electrium provide us with more detail as to the correct use of RCBOs in the workplace.

THE ‘F’ WORD

The experts at Vent-Axia provide advice on Part F of the Building Regulations for commercial and industrial buildings.

Part F of the Building Regulations came into effect from 15th June 2022, but how do they affect commercial and industrial clients?

With Part F (Means of Ventilation) focusing heavily on health and wellbeing, a key addition to the document is a new section on monitoring indoor air quality (IAQ) Other key points include designing ventilation systems to minimise external pollutants entering indoor spaces, and assessing ventilation requirements when installing energy efficiency measures to ensure good IAQ

The scope of Part F of the Building Regulations covers both new build and refurbishment and now looks to both minimise the entry of external pollutants and ensure humidity and pollutants are extracted effectively and efficiently. The document also includes guidance on minimum levels of air quality, to ensure good occupant health, and considers ways to monitor IAQ as part of this Furthermore, the document looks at energy efficiency and ventilation requirements

While the Regulations cover both residential and commercial, a new change for the Building Regulations is

that flats with communal areas are now seen as commercial rather than residential buildings

With the pandemic highlighting the importance of good ventilation to mitigate virus transmission, Part F is also introducing improvements to ventilation in new non-residential properties to help prevent the spread of airborne viruses In fact, it states that in “locations where continuous talking or singing takes place, or there are high levels of physical activity (such as dancing, playing sport or exercising), providing ventilation sufficient to keep CO2 levels below 800ppm is recommended”

There is also a sub-section entitled ‘Indoor Air Quality Monitoring’, which states that in new buildings in the occupiable rooms it refers that there “should have a means of monitoring the indoor air quality. This may be achieved using CO2 monitors or other means of measuring indoor air quality ” These actions will help ensure better indoor air quality in non-residential properties

Published on 15th December 2021, the Building Regulations are being hailed as a “vital step to improve indoor air quality”

Vent-Axia is well prepared for the amendments to Part F for non-residential properties, with a wide range of sensors. These include sensors for CO2, which can be discreetly located on a wall and can intelligently boost ventilation based on the detected CO2 levels They can also provide a warning indication for occupants if CO2 levels rise above acceptable levels with a useful traffic light system on the front, so occupants can activate purge ventilation when required These sensors are designed to work in conjunction with a wide range of ventilation solutions including the Sentinel range of demand controlled inline fans, suitable for either supply of fresh air or extracts of stale air. The inclusion of a CO2 sensor in the control provides optimal air quality control while minimising the actual running costs of the fan.

For more simplistic ventilation solutions where ducting cannot be easily installed Vent-Axia’s Lo-Carbon T-Series fans can provide background or purge ventilation and are easily fitted to an existing window or through a wall

ABOUT

DON’T FORGET, DISCONNECT!

Introduction

BS 7671 Chapter 41 deals with protection against electric shock, and this is where the requirements for automatic disconnection in case of a fault can be found

The disconnection times stated in Table 41 1 are influenced by the type of earthing system and the voltage range used. Also, RCDs are included within the design for fault protection for certain installations, meaning there are many different parameters to be met

Automatic Disconnection of Supply (ADS)

In general, there are two aspects involved with this protective measure:

l Basic protection is used to prevent contact with live parts, and

l Fault protection is provided by the protective earthing system and automatic disconnection in case of a fault

Fault to Earth

Fig 1 relates to TN systems and shows the

path of the Earth fault current in the event of line to Earth fault in one of the circuits. For clarity, only one circuit is shown, and it supplies a load with a metal casing that is connected to the Earth via the circuit protective conductor (CPC) The example shown is for a TN-S earthing system

The direction of the Earth fault current path is indicated by the arrows in Fig 1 It will be observed that the fault current flows in a loop It returns back to the supply transformer via the protective conductors, then goes through the winding of the transformer and returns to the fault within the installation via the line conductor

For TT systems, refer to Fig 2, where the mass of Earth between the installation and the origin forms part of the Earth fault current path

The resistance met by the fault current is known as impedance due to the presence of the transformer winding in the path, and the symbol for impedance is Z This fault path is called the Earth fault loop impedance and is abbreviated to Zs

The unit of impedance is the same as the unit of resistance, which is an ohm. The intention is that the fault current will be high enough to disconnect the overcurrent protective device within the required time, known as the disconnection time

The value of the Earth fault current is directly related to the value of operating voltage and Earth fault loop impedance, known simply as Ohm’s Law

Therefore, the lower the value of Zs, the higher the value of the Earth fault current and the quicker it will operate the protective device in order to disconnect the faulty circuit.

Disconnection times

As the severity of an electric shock depends not only on the value of the current flowing but also upon the time that the current flows, BS 7671 quotes the maximum disconnection times for each type and rating of overcurrent protective device This means that the protective device of the circuit must operate to disconnect the electricity supply within these times in the event of a fault to Earth

Regulation 411 3 2 2 states that disconnection times in Table 41.1, found in

Paul Chaffers, Technical Events Manager and Technical Author of NAPIT On-site Solutions, takes a closer look at the requirements for automatic disconnection in case of a fault.

BS 7671, shall be applied to final circuits with a rated current not exceeding:

l 63 A with one or more socket-outlets, and

l 32 A supplying only fixed connected current-using equipment.

The disconnection times for 230 V AC final circuits, found in Table 41 1, are:

l 0 4 s for TN systems

l 0.2 s for TT systems.

You should be aware that when disconnection is achieved in a TT system by an overcurrent protective device and protective equipotential bonding of all extraneous-conductive-parts has been carried out, in accordance with Regulation 411 3 1 2, the maximum disconnection times for TN systems may be used

In distribution circuits, i e , sub-mains, and for final circuits not covered by Regulation 411 3 2 2, Table 41 1 does not apply In TN systems, the disconnection time must not exceed 5 s; in TT systems, the disconnection time must not exceed 1 s (see Regulations 411 3 2 3 and 411 3 2 4)

When the Earth fault loop impedance, Zs, is measured using an Earth fault loop impedance tester, the reading obtained must be less than the relevant maximum value of Zs in the appropriate table.

Maximum Zs values are given in BS 7671

Tables 41 2, 41 3 and 41 4 The headings of these tables must be carefully noted to understand how each table is to be used

Zs corrected for temperature

It should be noted that BS 7671 Tables 41 2, 41 3 and 41 4 all have a similar note at the end of the table.

This note states that the maximum impedance given in the table should not be exceeded if the impedance is measured when the circuit conductors are at their maximum operating temperature (i e , 70°C) Usually, the circuit conductors will be at much less than this when testing is carried out They may be assumed to be 20°C

Values taken at 20°C can be corrected to 70°C for 70°C cables by multiplying the maximum value of Zs by 0 8, as stated in Appendix 3 of BS 7671

Maximum Zs figures for commonly used devices, corrected for temperature, are produced in Table 1

RCDs used for fault protection

For TT Earthing systems, RCDs are often used to provide fault protection This is mainly due to the fact that Earth electrode

resistance is too excessive to meet the maximum Earth fault loop impedance requirements for the circuit’s protective device It is important that the electrode resistance remains stable and therefore should be as low as practicable (under 200 Ω is deemed satisfactory) Table 41 5 of BS 7671 lists the maximum Earth fault loop impedance values to ensure effective RCD operation, as summarised in Table 2.

Conclusion

We commonly see multiple protective devices used throughout installations, with ratings for different applications It is vital inspectors are careful to note the exact characteristics of the device to ensure the correct look-up table is used to confirm ADS can be achieved

TT system Earth fault current path in a standard circuit

BUSINESS MATTERS

“SUCCESS ISN’T ALWAYS ABOUT GREATNESS, IT’S ALSO ABOUT CONSISTENCY”

When I first came across the above quote, I thought it would be from one of the great business minds or geniuses It was, in fact, said by Dwayne Johnson, otherwise known as wrestling superstar, The Rock

The Bright ‘Operations sector’ is about consistency of the ‘work’ of your business, the products and services it delivers The Operations sector is one of the ‘legs’ of our Bright 7 sector model. When you strengthen it to carry the weight of your business, you can

grow bigger, go further and achieve things faster

To carry out installations consistently and to a high standard we use the following W.O.R.K.S. process:

THE FIRST LETTER OF W O R K S IS ‘W’ WHICH STANDS FOR WORKFLOW

For this, we’ll utilise another acronym –F L E X – to ensure your systems are flexible, yet can still work under pressure

F = Flowchart

Map out your customer journey from start to finish. A good idea is to create a flowchart with post-it notes or use a

whiteboard This will help you to identify where things are working (or not) and can assist with identifying bottle necks or hot spots

L = List

Using the flowchart, we now need to ‘brain dump’ from all the team into a ‘how to’ manual List down (in step-by-step checklists) exactly how each area of the business works, much like a recipe book This does not have to be just text, it can be supported with photos, videos or screen captures

E = Engage

In order to engage the team with new or existing systems they need to be involved Training or brainstorming with them to get their ideas for improvements is crucial as they will know where problem areas are By showing that you’re willing to implement their ideas your team are much more likely to get behind them and will be more engaged in the business.

X = X-Factors

The X-Factors are the ‘wow’ elements of your business – the things that will

In this regular column, Emerson Patton, founder of Bright Business Advice, creator of the ‘Bright 7-Sector Orbit’ business model and author of Bright Business Transformation for Contractors, shares his advice for building a better business.

make your customers say: “wow that’s amazing” It’s those little touches that add to the experience and stay in your customers’ memory, meaning they’re more likely to tell others about you, helping you to win more referral work.

THE SECOND LETTER IN W O R K S IS ‘O’ WHICH STANDS FOR OPTIMISE

Once you've mapped out your flowchart, it’s time to look for ways to optimise it by improving existing systems or adding new technology to create better efficiencies

Could there be a better software system? Does your phone system need upgrading to incorporate things like VOIP, on-hold sales information or auto-attendant call routing? Does your website need an overhaul to include pop-ups, call backs or a live chat option? Can you improve on training?

There’s some excellent field service operations software systems available in the market, such as simPRO, which manages your operations from enquiry to invoicing Our clients love it, but we’ve found that you really need to have an office team member to use it well For smaller 1-5 employee companies that may utilise their van as their office, the likes of Tradify, Servicem8 or Klipboard can be used.

THE

THIRD LETTER OF W.O.R.K.S IS ‘R’ WHICH STANDS FOR RESULTS

Ultimately, if you want to produce a great result for your clients you need to incorporate an element of project management to make sure they're getting what they want By managing the whole process and delivering the results along the way, you’ll start to realise that this is where the magic happens!

THE FOURTH LETTER OF W.O.R.K.S IS ‘K’ WHICH STANDS FOR KNOWLEDGE.

This is about protecting the knowledge in your business Are you backing up your computers into the cloud? Have you got Disaster Recovery plans in place to keep the business running in the event of an emergency? How can you make sure that the information that might be in team members’ heads remains in your business?

THE LAST LETTER IN W.O.R.K.S IS ‘S’ WHICH STANDS FOR SPECIALIST.

Finally, I would highly recommend that you have a ‘specialist’ in the business – someone who works specifically on operational organisation This could be an Operations Director/Manager and really needs to be someone who knows how to make sure that all the things you undertake as a business are done well, consistently and managed properly across the whole company

TAKING CONTROL BACK

The experts at ECA explain more about the different types of control cables and why a new certification scheme should help to improve the quality of cables being sourced and used.

Control cables are found in a vast array of industrial and everyday applications These products are flexible, interconnecting and used to measure, control or regulate equipment like assembly or production lines, and to provide support for their associated computer units and work processes

Control cables are used when a direct connection to the controlled object is impossible As such, control cables can occupy an intermediate position between communication cables and power cables

A new BASEC certification scheme

Currently, these control cables are not governed by any specific standards, which can often confuse manufacturers, installers and users In response to demands from the marketplace to help address this problem, BASEC has launched a certification scheme to encourage standardised and consistent levels of quality for control cable product ranges Reflecting industry requirements, the new scheme refers to YY,

SY and CY control cables

What do YY, SY, and CY mean?

YY, SY and CY control cables are some of the most commonly used cables for applications such as industrial automation, railways infrastructure and more. The cables transmit information about the location, status and operating condition of an industrial component being controlled

YY, SY and CY originate from the European Committee for Electrotechnical Standardisation (CENELEC) naming conventions, where the first characters refer to the following:

l ‘Y' = unscreened

l 'S' = steel wire braid

l 'C' = copper braid

The second character, ‘Y', in each group refers to the material types – usually PVC –but the cable sheathing may also be a low smoke type SY control cable may also be referred to as flexible, braided, flex or

instrumentation control cable.

Types of control cable

YY cables are unscreened, flexible control cables available in various cores and conductor sizes – suited to environments with light mechanical stress

SY cables have a braid of galvanised steel wire (GSWB); these cables are suited to installations with medium to high mechanical stress.

CY cables are screened, flexible control cables with construction options similar to YY types but they include a tinned copper braid over the bedded, laid up cores – this extra braid adds protection against external electromagnetic influence

All control cables are available as PVC or low smoke emission versions (LSHF), depending on their application Low smoke cable variations should be installed for environments where safety is critical, to limit the danger to life or equipment

Compliance with the Wiring Regulations

Under the IET Wiring Regulations (BS 7671), YY, SY and CY control cables are not recommended for use as part of a fixed installation The IET's supporting guidance states: "For the purposes of ensuring compliance with BS 7671, the installation and use of non-standard cables, such as SY, CY and YY cables is discouraged ”

This means that a deliberate decision not to fully comply with the Wiring Regulations by using control cables in a fixed installation, must be noted as a departure Any use of a custom, non-standard, or partially compliant cable

must be declared and assessed, and it must be ensured that the degree of safety isn’t compromised

Some manufacturers claim that YY, SY and CY cables comply with the general requirements of the BS EN 50525 series (flexible cables) but these designs differ from the requirements of the mentioned standards For example:

The BS EN 50525 series BS EN 50525-2-11 is the British Standard for PVC flexible cables, but it has no provision for any braid Therefore, braided cable, such as SY cable, can’t conform to this standard

In 2017, it was reported that the insulation and sheath thicknesses of cables designated YY, SY and CY often have lower insulation and sheath thicknesses in comparison with the BS EN flexible cables. Therefore BS EN 50525-2-11 is not an appropriate standard for YY, SY and CY cables

Some YY, SY, CY cables claim to be made to continental standards, though it is not clear what these standards are

BASEC Standard and Certification Scheme

As an authority and preferred testing and certification partner to the worldwide cable industry, BASEC is regularly contacted to support and advise on control cable products' comparability and application

The BASEC scheme offers the cable industry and its users a way to improve and evidence the levels of quality and safety that the products manufactured, specified or sourced hold There is

presently no referenceable standard for this, hence the reason these cable products are often a debated hot topic

The scheme comprises six BASEC specifications: BA 1411, BA 1413, BA 1415 for PVC design and BA 1412, BA 1414, BA 1416 for LSHF design

The new certification scheme is relevant to cable products up to and including 300/500 V, with a maximum conductor operating temperature of 70°C. Where applicable, standards EN 50525-1 and EN 50565-2 will be referenced in conjunction with the control cable scheme document

BASEC is known within the industry for rigorous certification, factory auditing and testing schemes, which work continuously to improve the quality and safety of cable products at manufacturing sources With this in mind the new scheme has been developed, offering an all-inclusive testing programme for this widely used and barely regulated range of cable products

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:

WHEN I’M TESTING ELECTRICAL INSTALLATIONS, I HATE FILLING IN TEST CERTIFICATES BY HAND. IT TAKES AGES AND IT’S EASY TO MAKE MISTAKES. IS THERE A SIMPLER AND MORE RELIABLE WAY?

Megger says:

There is if you ’ re using Megger’s new MFT-X1 multifunction installation tester, which integrates fully with the Megger CertSuite software package This is available as an App to run on iOS or Android mobile devices as well as on PCs and Macs When you use CertSuite, you can tag test results in the MFT-X1 itself and then they can be transferred directly to any test certificate or report that’s open in the App This means you can produce professional reports on-site accurately and easily – you can even include results from multiple users Another key feature is that all of your data is stored securely in the cloud, so you’ll have no more worries about losing those important test results! CertSuite can be used online or offline, so you don’t have to rely on having an internet connection when working When you work offline, CertSuite automatically synchronises your certificates, reports and photos as soon as you ’ re back online Certificates available in CertSuite include not only 18th Edition, Fire Alarm and Emergency Lighting, but also Solar/PV and Fan Maintenance reports along with the latest EV Charge Point installation certificate and inspection report

VISIT MEGGER’S DEDICATED CERTSUITE MICROSITE AT: WWW.RDR.LINK/EAO020

HEAR, HEAR!

Hearing assistance systems are required in many public places under BS8300, The Care Standards Act and Part M of the Building Regulations and, the latest version of The Equality Act, insists that anyone offering goods, facilities or services to the general public must make 'reasonable' adjustments to ensure they do not directly or indirectly discriminate against hearing impaired people or even discriminate by association

In the current climate, this legislation is vital as, according to RNID, a staggering 11 million people (that’s one in six of the UK population) are deaf or hard of hearing And a significant portion of those people have hearing aids. People with hearing loss are more likely to experience emotional distress and loneliness and twice as likely to develop depression and dementia Fortunately, there are a wide variety of assistive listening (AL) systems on the market specifically designed to help the hearing impaired and these are as follows:

Infrared systems

An infrared listening system transmits sound over infrared to compatible hearing devices without amplifying ambient noise Such systems typically comprise an audio source such as a microphone or PA system, a mixer (to generate a line level input from the audio source), a modulator and radiator (to transmit the infrared signal) and an infrared receiver such as an IR stethoscope

(to receive the infrared signal) Although they tend to be more expensive than hearing loop systems and require the supply, management and maintenance of custom IR receivers, infrared systems provide excellent sound quality, line of sight operation and no field wiring

Through-counter speech systems

Through counter speech systems are effectively window intercom systems that help make ticket counters, reception desks and other areas with a Perspex or

The team at C-TEC explore the different types of hearing assistance solutions available and explain how the company can help you find the right one for your next project.

glazed screen more accessible The vast majority on the market can be paired with a hearing loop amplifier to allow the audio to be broadcast directly to a compatible hearing aid Such systems

are now increasingly popular thanks to the pandemic as they allow social distancing to be maintained by making conversations easier for everyone, including people wearing masks.

Hearing loop systems

Of all the AL systems available, hearing loop systems are by far the most popular and cost-effective and they are used worldwide to allow the hearing impaired to hear more clearly Most hearing aids

Specialist hearing loop systems

In more complex applications – such as in buildings with a high metal content or in arts venues, theatres and music rooms –where minimal overspill and consistent coverage throughout is essential, a phased array loop system is recommended. The phase-shifting amplifier produces two signals that are 90° out of phase with each other These signals are connected to two hearing loops laid out in a special overlapping pattern The resultant magnetic field is evenly spread within the covered area and the field strength falls off very quickly outside the loop, thus avoiding ‘dead spots’ (the areas directly above or below the loop cable where the signal suddenly drops to zero and cuts out sound altogether) The current flowing through the two hearing loops generates a

magnetic field that radiates around the loop cable Within the covered area, people with hearing aids switched to the T or MT position or a person with a cochlear implant can hear more clearly

Free technical design service and training

have a ‘T’ or ‘MT’ switch which allows them to pick up the electromagnetic field generated by a hearing loop system The hearing aid converts this signal into a sound suited to its user’s specific hearing requirements Any person with a hearing aid positioned within or near the loop can hear the loop signal by switching their hearing aid to the correct position, allowing them to participate more effectively in general conversation, ordering goods or services, listening to public performances, etc

The installation of a hearing assistance system is recognised as an adjustment an organisation can make to help comply with the Equality Act C-TEC manufactures the UK’s widest range of hearing loop amplifiers, kits, microphones, connector plates and test equipment and we offer our customers a wealth of technical support, including a free hearing assistance design service which can save them time and money. In addition, we host regular free-of-charge hearing loop training sessions at our HQ in Wigan to provide installers, sales engineers and architects with a detailed overview of why, where and how our PDA Range of hearing loop systems are used The session also includes a section on how to test a hearing system to BS EN 60118-4 (Magnetic strength in audio-frequency hearing loops for hearing aid purposes). A one-hour online CPD session entitled ‘Hearing Assistance Solutions – The Route to DDA/Equality Act Compliance (CPD)’ is also available on request

GET Q-NECT-ED

Unicrimp has recently added a brand new category to its cable accessories portfolio. Here, we learn more about the Q-NECT range.

Unicrimp, part of the Scolmore Group of companies, continues to expand its comprehensive range of cable accessories and has introduced a brand new category of products to its portfolio Marketed under the new Q-NECT brand, the range comprises lever connectors and connection boxes

The aim of the launch is to bring together a selection of products that work in conjunction with each other to provide installers with strong, quick and reliable solutions that will offer them versatility when carrying out their everyday tasks

A total of ten products make up the full Q-NECT range, which comprises 2, 3 and 5 way lever connectors, IP66 weatherproof junction box, 2 and 3 way IP connection boxes and 5 pole, 3 way IP68 ‘T’ and 2 way inline connectors

2, 3 and 5 way lever connectors

S u i t a b l e f o r s o l i d , s t r a n d e d a n d f l e x i b l e c a b l e t y p e s , t h e s e l e v e r o p e r a t e d c o n n e c t o r s u s e s c r e w l e s s s p r i n g c l a m p t e c h n o l o g y, w h i c h m e a n s t h e r e i s n o n e e d f o r a n y t o o l s T h e y f e a t u r e a n i n s p e c t i o n w i n d o w, w h i c h i s l o c a t e d a t t h e t o p o f t h e l e v e r c o n n e c t o r a n d a l l o w s f o r q u i c k a n d e a s y t e s t i n g w h i l e t h e l e v e r c o n n e c t o r i s i n s t a l l e d

T h e y o f f e r a s t r o n g a n d r e l i a b l e c o n n e c t i o n , w i t h a c o n d u c t o r r a n g e o f 0. 2 - 4 m m . B e c a u s e t h e y a r e r e u s a b l e, t h e y a r e t h e p e r f e c t s o l u t i o n f o r t e m p o r a r y o r m o b i l e i n s t a l l a t i o n s

T h e h o u s i n g o n a l l U n i c r i m p

Q - N E C T l e v e r c o n n e c t o r s a r e t r a n s p a r e n t w h i c h m e a n s t h a t i n s t a l l e r s

c a n e a s i l y s e e i f t h e w i r e s i n s i d e a r e p o s i t i o n e d c o r r e c t l y t o e n s u r e t h e b e s t p o s s i b l e c o n n e c t i o n

IP66 weatherproof junction box

Available in black and anthracite grey finishes, the IP66 junction box is designed to make installations more efficient It can house four of the 3 port lever connectors using the 360° detachable cradle and with a curved lid, it provides additional space for wires The lid is locked using quarter turn fasteners

The junction box features ten membrane entry points Protection against moisture and dust is enhanced with the self-sealing membranes which provide a faster and more secure cable entry whilst at the same time maintaining the IP66 rating

Multiple fixing options are available –either fixing directly to a wall using four screws into the pre-moulded holes in the base or using the detachable wall clip which requires just two screws

Installers have the option of using up to eight M20 cable glands with the junction box. The M20 threaded entries with membrane ensure that the IP rating is maintained without needing to use any tools or locknuts.

2 and 3 way IP connection boxes

There are three products within the IP connection boxes range –4 pole 2 way 24A IP68 inline connection box; 4 pole 3 way 24A IP68 (M16+M20) connection box and 3 pole 2 way 16A IP66 connection box.

Both IP68 rated boxes come pre-installed with IP68 rated nylon glands. The nylon glands provide a dust and watertight seal, as well as excellent strain relief and cable protection. To aid installation the hinged lid enables quick and easy access with suitable fixing points provided. This allows the connection box to be fixed wherever it is suited.

The IP68 connection box prevents exposure with a strong sealing performance. It can withstand dust, dirt and sand, and is also resistant to submersion up to a maximum depth of 1m for up to 60 minutes. The more compact IP66 connection box is also protected against direct high pressure jets.

5

pole, 3 way IP68 ‘T’ and inline connectors

High quality and robust materials produce a tough nylon body which helps ensure that the connectors can withstand the harshest of environments. Whatever the installation conditions, the cables will be fully secure.

The ‘T’ and inline connectors are supplied with 5 pole terminals. This provides the installer with a variety of wiring options, covering a large range of installations. The ‘T’ shape of the IP68 ‘T’ connector facilitates the install of an inline switch or additional powered output whilst also offering IP68 weatherproof protection, making it perfect for multiple installations.

The IP68 inline connector provides a quick and simple solution for outdoor fixtures. It can be used to extend or repair existing cables while maintaining its IP68 weatherproof protection.

Unicrimp has produced a comprehensive brochure providing in-depth details of each of the products in the Q-NECT range. This can be downloaded from the Unicrimp website as well as from the Scolmore Group App.

Craig Slater, Managing Director of Sevadis, discusses the outlook for e electric vehicle industry d what we can take away m last year.

ELECTRIFICATION NATION

Rjust under 30 years away from fulfilling the nation’s commitment of becoming a completely decarbonised country Transport constitutes around almost one quarter (23%) of the UK’s CO2 emissions, meaning that electrification plays a paramount role in the road to Net Zero But, for targets to be reached, the need for readily available and reliable EV charging points remains a key element to accommodate both the current and future EV drivers on the nation’s roads

The ban on new ICE vehicles set to be implemented in 2030 has unsurprisingly prompted drivers to consider an EV as their next vehicle choice, whilst also encouraging wider discussions amongst businesses and organisations when contemplating environmental and

delivery lead times are prohibiting quicker uptake That being said, businesses and organisations are planning ahead, taking advantage of infrastructure grants available to them and implementing EV chargepoint roll-out plans to ensure both company fleet drivers and visitors are within reach of the facilities to recharge

What have we learned?

What we’ve learned from last year is that the elimination of the Electric Vehicle Homecharge Scheme (EVHS), which enabled home-owners to benefit from grant funding towards their chosen EV charging point, created concerns for electrical contractors who were carrying out domestic installations However, with the introduction of a diverse range of EV infrastructure grants, as well as the remaining Workplace Charging Scheme (WCS), doors were open for new, fresh business via the commercial installations route. The introduction of further fiscal support, combined with businesses and organisations ‘thinking green and going green’, meant that electrical

actors have been able to diversify portfolio, reaching territories they ps wouldn’t have prior to the new level of funding available

This pattern of greater opportunities in commercial EV installations remains strong for 2023 as we edge closer to the ICE ban, as well as businesses and their sustainability targets. The agenda for this year remains the same as the previous; a nationwide roll-out of EV charging points is required to increase and encourage EV uptake But, for the roll-out to be future-proofed and of quality, reliability of EV charging points is critical in generating consumer confidence, because with confidence breeds demand for EVs, and with that comes opportunities for EV chargepoint installations.

Starting the year on a high 2023 has already started on a high for the general EV industry with many drivers making the all-important switch Figures will only increase as OEMs introduce new vehicles to the market; businesses make the shift to operating zero emission fleets and consumers make sustainably conscious decisions about the way they travel.

For electrical contractors, the electrification of the nation presents ample opportunities in the immediate, near and far future

SKILLING UP FOR SOLAR

anew year brings new resolutions, and for electricians not yet working with solar, transitioning into the industry could be the one resolution to make and keep this year – especially with the current clamour for solar system installations to safeguard against soaring energy bills

In spite of this interest though, there remains a critical scarcity of competent workers who can meet demand In August 2022, it was reported that just over 3,000 solar installations are being carried out every week, according to trade association Solar Energy UK (up from 1,000 a week in July 2020) That said, many solar firms are struggling with the boom in demand

For electricians, taking a slice of the solar market is a lucrative opportunity that

could create a new revenue stream and help the nation become self-sufficient at the same time

The practice of PV

To become a proficient PV professional, installers will need a decent mix of theoretical background knowledge on available technology, as well as a host of practical skills

Looking at equipment first, string inverters are the typical go-to choice These range from commercial versions, such as GoodWe’s HT Series that comes in sizes such as 50kW, 60kW and 80kW, to residential inverters like GoodWe's XS Series, which has a footprint comparable to an A4 piece of paper

As a ‘halfway house’, hybrid inverters are also available These inverters let users add a battery system to store any extra energy Knowing the difference between batteries and functionality is key too as there are smart models that can be programmed to only charge at off-peak rates and offer backup for critical loads

On the more practical side, electricians need to be aware of the Work at Height Regulations as panels tend to go on rooftops Scaffolding typically needs to be placed around the property while the project is being undertaken,

and work must be properly planned, risk assessed, and scheduled

Good maths, design and specification skills are also required. This will make it easier to ascertain the anticipated energy consumption of the building's tenants and choose which solutions best suit the use-case

Specialist

Following on from this, electricians will then need to understand how to commission, monitor, troubleshoot, and maintain solar systems Every system has its quirks, but it is best practice to deal with a single manufacturer to ensure that all of the equipment is compatible, which will speed up, simplify, and reduce the cost of installations

The best way to learn solar is to undergo specialist training GoodWe has started a new professional training initiative, GoodWe PLUS+, which offers practical guidance and skills and is composed of three straightforward online sessions led by a technical specialist. After passing, the qualification opens a plethora of extra benefits, including accreditation as a GoodWe PLUS+ approved installer

solar skills

Eugene Lucarelli, Marketing Manager at GoodWe UK, discusses additional revenue streams electricians could be generating by segueing into solar, as well as the core training needed to take on PV installations.

THINK TANK

With energy savings high on the agenda for customers in 2023, the team at Prefect Controls tell us more about the benefits of utilising water tank control.

Since 1868, when the first instantaneous water heater was patented, we’ve witnessed a long evolution in the heating of water. With each innovation, safety, efficiency and convenience have incrementally improved, but the fundamental principles have remained the same

A supply of cold water accumulates in a tank This is heated, either by electric elements, or a coil of pipe through which water from a boiler transfers heat, which warms the tank’s contents.

Although the method of heating hasn’t changed, the current concerns regarding water scarcity and the cost of energy, means control has become increasingly important to ensure efficiency in the consumption of both commodities

Measuring up

Prefect Controls has been working closely with cylinder manufacturer, Gledhill, to produce a cylinder that combines the latest tank technology with state-of-the-art monitoring, measuring and management

The Irus SMART tank is an unvented stainless steel direct cylinder and is factory fitted with high-grade long-life titanium elements It leaves the factory pre-plumbed and pre-wired, meaning installation is simply a case of connecting

the cold-water supply, output feeds and electrical wiring to the mains

The brain of the tank is the control box. This is pre-wired to the elements, water meters, probes, sensors, and optional leak detection equipment

Two integrated water meters monitor supply in, and output to, the hot water system, providing accurate data on the volume of water being used By monitoring flow, should a tap or shower be left running, an alert is sent to facilities managers

Learning heating patterns

Two in-built pockets (at optimum alignment with the elements) contain probes that monitor water temperature at the core of the tank This provides managers with precise data for controlling heating patterns and will alert them in the unlikely event of a failing element

The Tundish sensor monitors any throughput and alerts that hot water is being wasted. Sensors attached to the cold inlet and hot outlet, monitor the temperature of water entering and leaving the tank, while another input, with the addition of a leak sensor, will detect any leak from pipework within the cupboard and inform of its intensity The environmental conditions within the vicinity of the tank are also recorded, including humidity, light and sound pressure levels

The SMART tank connects to Prefect’s Irus Central Control system and the data is displayed on the dedicated internet portal. This enables managers to control tanks remotely and gather information without the need to visit individual flats or cupboards where tanks are located

Will Mills, Senior Project Manager at Prefect Controls, said: “For student accommodation and other sites with multiple hot water tanks, this innovation will significantly reduce unnecessary energy consumption But, it also provides energy managers with data to inform their future energy strategies and understanding of energy-use patterns ”

In the summer of 2021 Prefect equipment was installed at a student accommodation site and controlled 39 existing tanks The performance of the tanks was monitored accurately for the first time In Spring 2022 these were replaced with Irus ready tanks

Data collected between September and November for both years provides a direct comparison between old and new The data is very encouraging and shows energy savings of 17 5% during the three month like-for-like monitoring periods

PRODUCTION LINES

The requirements for a lighting system in a storage environment are diverse, so a flexible system that can be easily adapted to changes in working processes is essential

The TruSys FLEX DALI system is an ideal lighting control for an entire building that can manage over 1,000 individually addressed luminaires across rooms and floors, operated by simply using a push button or App for smartphones/tablets. Energy-saving LED technology provides continuous operation and homogenous light distribution, with tool-free ‘click into place’ solutions for an easy installation Flexible application is possible due to a range of different lumen packages and beam angles

A typical high-bay warehouse is characterised by high ceilings, narrow aisles and hardly any natural daylight In addition, the large difference in brightness between indoor and outdoor areas produces a high risk of accidents in

entrances and exits Even from an exceptional ceiling height of nine metres, the LEDVANCE High Bay DALI LED luminaires provide uniformly good illumination, and the daylight control of the DALI-2 drivers enables additional potential for energy savings

The perfect combination

The luminaires can be combined with VIVARES DALI light management, including presence and daylight control, for ultimate efficiency. For harsh industrial environments, the luminaires carry increased shock resistance (IK08), dust-proof design and protection against water jets (IP65)

In a production environment, the demands for a lighting system are varied: from rough manual work to fine assembly activities and visual inspections The LEDVANCE DAMP PROOF Gen 2 DALI meets all these requirements with its high protection against shock, dust and water. It is fitted with easy to open/close stainless-steel fasteners without sharp

this article the team at DVANCE shines a light on e latest storage and p oduction solutions.

edges, and holes for anti-vandalism

screws In a recent installation by LEDVANCE, a production facility measured an increase in illuminance of 20%, coupled with an impressive 68% reduction in energy costs The luminaires can additionally be combined with VIVARES DALI light management for further energy savings

Loading areas are often particularly busy at night, so this makes lighting that provides orientation and safety all the more important. The LEDVANCE FLOODLIGHT performance is ideal for loading zones, as well as for facade illumination and lighting close to buildings Energy savings of up to 90% can be achieved, compared to lighting with conventional technology, and the floodlight offers illuminance of at least 50 lux (on average) for busier areas The floodlight also features strong robustness, including protection against moisture

Retrofit for purpose

For facilities looking to retrofit LED lamps into an existing lighting solution, the LEDVANCE LED Tube range is an ideal first step A stand-out product is the LED Tube T8EM PRO, which has a full-glass portfolio to protect against bending and a shatterproof protection sheet The product is VDE certified according to IEC62776 and low flicker according to EU 2019/2020 (SVM ≤0,4 / PstLM ≤ 1). The instant-on light operates in combination with sensor technology and the lamp also works at low temperatures

HEAT SEEKING

The IDEAL 61-847 Dual Laser Targeting Infrared Thermometer (IRT) is a non-contact temperature remote sensing thermometer which utilises dual laser beams to define the outside edges of the area where the temperature will be measured, increasing accuracy for the user The idea here is that an imaginary circle can be drawn between the upper/lower dots and the unit will use the distance in between as the sensing area

The instrument uses 2 x 1 5V AAA batteries and these are supplied with a certificate of conformance and user manual in a blister pack. It boasts a large, easy to read LCD screen with integrated selectable back light to allow for safer/faster work in poorly lit environments while the unit’s robust, industrial design and lanyard tie-off point allows for better gripping and ensures that the unit can withstand a drop from up to 2 metres

In use, the product us very light to handle and I like the fact that there are

function buttons included at the rear so the display can be viewed simultaneously

Functions available to the user include: temperature limits, laser on/off, audible beep on/off (allowing the meter to be operated with a visual only indication when working in noise sensitive/restricted areas), emissivity setting, low battery, scan/hold (which constantly updates the temperature readings in the display as different targets are scanned) and a secondary screen with four different modes – ‘Max’, ‘Min’, ‘Average’ and ‘Difference’ values of the most recent scan you’ve carried out

The Hi and Lo temperature alarms and emissivity are all user programmable and the lock measurement setting allows for temperature measurement over a period of time (from one minute to five hours) with the unit being mounted on a standard camera tripod

The IRT measures temperatures from -26° to 932°F (-32° to 500°C), with a 12:1 distance to spot ratio, meaning

measurements of 1 inch can be taken accurately from as far as 12 inches away I worked out that the average distance of measurement is about 600mm

Laser targeting system

Furthermore, the LCD backlit display can be illuminated when working in poor or zero lighting conditions and the laser targeting system can be turned on and off at the user's discretion The unit’s display will liven up when triggered and will stay active until there is a time out in the user’s operation

This is a solid and accurate tool that I’ve managed to get plenty of use from. There are some nice functions that you wouldn’t find on comparative units and I’d recommend that you give it a look if you’re in the market for this type of product

BROWSE IDEAL’S FULL TEST & MEASUREMENT RANGE IN THE ONLINE CATALOGUE AT: WWW.RDR.LINK/EAO027

This month Reece Hardy tries out the IDEAL 61-847 Dual Laser Targeting Infrared Thermometer.

Dublin hospital discovers the missing LINX

The Dublin-based Mater Hospital, a centre of excellence for cardiac care and one of Ireland’s leading private cancer centres, recently underwent a retrofit of ROBUS fittings

When upgrading the lighting system, the hospital took advantage of the emergence in smart commercial technology by installing ROBUS LINX – a self-healing, smart lighting control system designed to automate lighting.

Using a range of LINX smart drivers, controllers, and power monitors in combination with a 'zigbee' wireless self-healing mesh, the ROBUS LINX system was successfully installed

Objective

C e n t r a l t o t h e h o s p i t a l ’s n e e d s w a s a l o w - ke y a n d e a s y t o u s e s o l u t i o n t h a t p r e s e r v e d e n e r g y a n d a l l o w e d t h e m t o m a n a g e l i g h t i n g w i t h n o i n p u t , b u t w o u l d s t i l l a l l o w m a n u a l c o n t r o l i f d e s i r e d T h e h o s p i t a l t o o k a d v a n t a g e o f t h i s w i t h t h e L I N X s y s t e m w h i c h o f f e r s i m p r o v e d e n e r g y s a v i n g s , s i m p l e i n s t a l l a t i o n , e a s e o f a c c e s s a n d c o n t r o l , w h i l e e n s u r i n g t h e s y s t e m w a s f u t u r e - p r o o f e d a n d s e t u p t o g r o w a t t h e s a m e p a c e a s t h e h o s p i t a l

LINX in action

LINX integrates motion sensors to activate and deactivate lighting automatically while photocells are used to adapt the light levels throughout the day based on the ambient light level detected for even greater energy savings The Mater Hospital was able to utilise the scheduling function which schedules lighting scenarios to automatically control light level and ensures hospital staff can focus on their work while LINX takes care of the lighting

Using the LINX software, staff can easily monitor the current operating status and total operating time Together with a layout map of the installation area imported into the software, LINX provides an intuitive platform to support urgent or planned maintenance

LINX energy savings

Ke y t o T h e M a t e r H o s p i t a l w a s t h e n e e d t o d e m o n s t r a t e t h e l e v e l o f e n e r g y s a v i n g s i t w a s a c h i e v i n g u s i n g

ESP provides a knock-out service to Bruno’s

In an effort to grow their business, the proprietors of family-run bakers, Bruno’s, made the decision to relocate from their original premises in the Warwickshire village of Studley, near Stratford upon Avon to a much larger site in the same village, where they could significantly expand their business

With much of their custom over the years having come from local company, ESP, the owners didn’t hesitate to get ESP involved with the project to kit out the new business property with fire protection and security solutions

Following a visit to the new premises to understand the requirements, the fire design team at ESP recommended the MAGDUO two-wire fire alarm system, and a 4-zone, two-wire fire panel, in black housing to suit the interior, was selected

The MAGDUO Two-Wire fire alarm system is aimed at small to medium contractors, offering them a highly flexible and adaptable system that will save them time and money on the installation process, making it perfect for the bakery’s requirements

Two-Wire fire alarm systems are based on standard conventional system technology Unlike standard conventional four wired systems where the detectors, call points and alarm devices for each zone are wired on separate circuits, MAGDUO utilises intelligent Two-Wire technology, which allows all devices to be wired on the same set of two-core zone cables back to the control panel – enabling it to use a single circuit per zone both for detection and to power the sounders In addition, the MAGDUO panel includes a clear LCD screen which assists the installer and end user with configuration and event reporting.

Installed at the same time from the fire protection range was the MAGDUO FlexiPoint detector – an essential component product for the MAGDUO Two Wire Fire System As well as offering seven different modes of fire detection including combined heat and smoke, the FlexiPoint detector is also available with an inbuilt sounder or inbuilt sounder strobe, which will assist with a compact install solution (as the detector and sounder is all-in-one as opposed to separate units)

FlexiPoint is a plug-in style smoke detector which utilises a photo-electric sensing chamber to make a measurement corresponding to smoke density The device also incorporates a thermistor sensing circuit to allow for accurate heat measurement These elements allow the device to be configured to a smoke, heat or combined setting

Having satisfied the fire alarm system requirement, ESP was also called on to provide the CCTV security protection for the premises. There were a number of requirements that the owners wanted fulfilled with CCTV coverage for the internal seating areas, bar areas as well as the external veranda, car park and roof top area ESP’s HDView IP 5MP CCTV system was selected to provide the best solution

The range features POE (Power-Over-Ethernet) which enables the camera and power feed to be wired in Cat5e cable up to 100 metres without the need for additional power, which makes installation much more convenient. A single Ethernet cable provides both the power and the HD digital feed, with just one cable per camera, and multiple cameras can be installed anywhere on the network where the NVR is connected

The HDView IP POE 8 channel 1TB NVR was set up along with a total of nine grey bullet style cameras to cover the different aspects of the site The installer opted for a mix of the 5MP resolution 2 8mm fixed lens cameras and the 2 8-12mm varifocal lens cameras, and these were mounted on deep camera bases which provide a neat and tidy finish by concealing the cable connections

BROWSE THE FULL ESP RANGE IN THE ONLINE CATALOGUE AT: WWW.RDR.LINK/EAO030

Innovation and dimming –taking things to the next level

There is an abundance of product in the lighting market that often leaves buyers confused as to what actually makes one product different from another? The guys at All LED seem to always be trying to innovate, this time focusing on the GU10. A GU10 that works with 99 1% of dimmers? Yes

The Caterham GU10 Lamp

This high lumen 4 7W dimmable LED GU10, available in four colour temperatures with a focus on dimming performance and compatibility, removes the constant worry about mismatch when paired with certain dimmer modules

OptiDim gives the lamp an unprecedented ability to dim from full power to zero in the smoothest way Your choice of dimmer will not matter as this amazing technology sets the trend for 2023

The Caterham tackles aspects that are important to the electrical world from a professional standpoint (output, dimming, aesthetics and performance) but everything else in the supply chain that actually takes place before the lamp is even born – its carbon and waste footprint

All of us are sick of seeing waste plastics littered all over the globe, on pristine beaches and rivers, on sidewalks and along nature trails It’s time that manufacturers started to be more conscious of the environment and people’s desire to be greener and produce less waste

Plastics – All LED has done something different by wiping out all plastics from the entire packaging supply chain. Every item of packaging used on the Caterham lamps is made from fully recycled cardboard.

Time saving – Instead of individual boxes that have to be opened one at a time, adding to expensive skip waste, the Caterham is supplied cleverly and compactly into neatly designed ten pack boxes, making them easy to carry and fit and saving the fitter time and effort that would be wasted on going up and down that ladder

Space saving – Over 34% smaller than traditionally packed GU10s, making the shipping and transport emissions vastly lower

than standard singly packed items

Good looks – The Caterham is also smartly packaged, with the outer box able to fold into a counter-top display, saving packaging waste at every step

CED ELECTRICAL Meridian LED Circular Bulkheads and Slimline Downlights with CCT Technology

Meridian Lighting has recently launched these new ranges, both featuring Colour Change Technology (CCT), to deliver a cool, natural or warm white output, as well as emergency options available on all fittings. The circular bulkhead is a variable wattage fitting (9W, 14W and 18W) and comes as standard, with a corridor sensor, a microwave sensor, or both IP65 rated for indoor or outdoor use, this slim design bulkhead has a white polycarbonate body and frosted opal diffuser, whilst fitted with a hinged gear tray for ease of installation The ultra slim flat downlights, which come in four sizes (6W, 9W , 12W and 18W), are recessed fittings manufactured with a die-cast aluminium body and finished in white with an opal polycarbonate diffuser Both ranges are ERP2 compliant, UK/CA and CE approved and backed with a five-year guarantee

SNICKERS WORKWEAR Protective Wear Range

HAMILTON LITESTAT 2023 Digital Catalogue

Hamilton’s new 2023 ‘quick look-up’ digital catalogue allows users to access the brand’s 23 collections in just one click, tap or swipe The comprehensive 428-page guide features all switch and insert options, plate finishes and functionality configurations, clearly itemised by product code, plus new collections for 2023 are in there, including: Linea-Tetra CFX – creating a sharp, raised relief appearance with its stylish 45˚ bevelled edge; Sheer G2 – Hamilton’s screwless modern, minimalist, flat-plate collection; Verve white plastic collection – for those situations where white is just right! Additionally, new Basalt Gray and Anthra Gray finishes along with 45W combined USB-A&C double-switched sockets and the new WSA50+ Wireless Streaming Amplifier – are also featured Users will also benefit from learning about details of Hamilton’s bespoke design service and the EuroFix and Grid-IT solutions Available on any desktop or handheld smart device, it’s the ideal reference for electrical contractors And no trees were harmed in its production!

ATC Energy Efficient Hand Dryers

ATC provides a wide range of Energy

Efficient Hand Dryers, with a model to suit your specific washroom needs The Energy

Efficient Hand Dryer range offers users energy efficiency, higher speed – all models dry hands in 15 seconds, lower energy bills, and the added benefit of being able to switch on/off the heating element Optional HEPA filters remove harmful particles such as bacteria, mould and dust and the units are kinder to the environment than paper towels, reducing CO2 emissions and waste to landfill Additional features include low running costs, competitive pricing and a variety of colours to choose from

Snickers Workwear’s Protective Wear range is the better-informed choice for professionals who demand quality, sustainable products that match protection standards for hazardous environments and foul weather Snickers offers a comprehensive selection of ergonomically designed base-, mid- and top-layer working clothes and accessories that also include work gloves, kneepads and specialist ProtecWork clothing They’re all certified as appropriate for different risks at work to ensure the comfort, health and workforce-wellbeing all day, every day The extensive range also includes Hi-Vis clothing that provides protection against dangers such as Electric Arc, heat and flame, chemicals and bad weather in high-risk environments So, whatever the hazard at work, Snickers Workwear’s Protective Wear collection – complimented by Solid Gear and Toe Guard safety footwear – can provide sustainable certified PPE solutions for maximum effective protection whatever the risks on-site.

BROWSE THE HAMILTON DIGITAL CATALOGUE AT: WWW.RDR.LINK/EAO033

The next generation of multifunction testers

Combining unique time-saving features with a new intuitive user interface, outstanding versatility and dependable futureproofing, the new Megger MFT-X platform is set to transform the market for multifunction installation testers (MFTs)

Among its numerous innovative features are True Loop impedance testing with patented Confidence Meter technology, user-configurable automated RCD testing, full CertSuite certification software compatibility, support for EV charge point testing, and easy on-site upgrading to meet changes in test requirements or add extra functions

A large full-colour display, which changes background colour according to the test being performed, makes the MFT-X1 easy and convenient to use, while enhanced Bluetooth connectivity means that results can be easily transferred to mobile phones or tablets running Megger’s CertSuite software, making test certificate completion on-site quick and easy

True Loop is the most advanced earth loop impedance measurement system that Megger has ever developed

Integrating the patented Confidence Meter with the latest 3-wire no-trip loop testing technology, the user is now able to get fast, reliable, accurate and repeatable readings in the

harshest of high-noise environments – where previously readings could not be obtained. In addition, the technology ensures that loop values are immune to “RCD uplift” and will perform tests on circuits protected by RCDs down to 10 mA. To further save time, a new RCD configurator for auto-sequence testing ensures only the tests required are completed EV charge point testing remains straightforward, thanks to a dedicated test and full compatibility with the Megger EVCA charge point adaptor

Users now have a choice of power sources for the MFT-X1 In an industry first, a high-capacity, rechargeable, fast-switch Li-ION battery is supplied as standard and a battery module that accommodates eight standard AA batteries for Alkaline of NiMH cells is also available

In line with Megger’s commitment to achieving the highest levels of safety in its products, the new MFT-X1 has a CAT IV 300 V rating in line with IEC 60101. It also features robust construction with an IP54 ingress protection rating allowing it to be used safely, even in demanding environmental conditions

ALEXANDRA Uniform Personalisation Service

Alexandra has launched a uniform personalisation service that offers easy customisation and instant design views. Ideal for installers wanting to create a professional image for their workplace or business, customisable garments include fleeces, beanies and hi-vis jackets and trousers The new personalisation tool boasts an easy-to-use interface that allows users to browse the catalogue, choose their item, and customise it with just a few clicks Not only that, but the innovative technology serves up an instant visual of your personalised design, saving customers time on waiting for proofs Alexandra is offering a variety of customisation options, ensuring that customers can get their uniform perfectly branded or personalised Users can upload images or text, with the option of having their logo embroidered or printed onto garments All text is fully customisable with a range of fonts and colours to choose from.

WERNER

Adjustable Height & Linking Pro Platform

Werner has launched its Adjustable Height & Linking Pro Platform, offering professionals the option to reach up to 2 51m; and the ability to connect two or more platforms for a longer working surface, with no tools required This lightweight and versatile aluminium platform offers users the unbeatable benefit of both height adjustability and working length extension –a win-win solution Thanks to its unique design, consisting of both adjustable legs and Quick Link technology, the Werner Adjustable Height & Linking Pro Platform provides a working height of up to 0 76m via 10 height adjustments The extra-large 1 17m x 0 36m platform offers a broad standing space which allows the user plenty of room to manoeuvre safely while working, and thanks to the linking element, there is the ability to double, triple or even quadruple the working space Featuring wide feet, which offer stability without the need for manual adjustment, the height adjustability and non-marring plastic bumpers allow for the platform to be used on uneven ground and stairs, without damaging finished surfaces Equipped with a range of features designed for user convenience, the new platform is quick to set up, with a one-handed lock which allows users to spend minimal time assembling equipment. When it comes to connecting additional platforms if a wider working space is needed, this is simply achieved by extending the linking hooks and clicking the platform into place.

KNIGHTSBRIDGE 2023 Catalogue

Knightsbridge has published its new 2023 catalogue, which is available to the trade now The handy A5-sized, full colour publication is packed from cover to cover – over 3,000 items across nearly 500 pages, including over 400 new products –with new range developments, impressive innovations, and lots of inspiring ideas Divided into easy-to-reference sections, the catalogue provides full product details along with high quality lifestyle and detailed product images New high design accessories reflect the evolving aesthetic of the home, while the trend towards smart appliances is represented with a comprehensive range of commercial, domestic, and outdoor products that are easy to use and all controllable via one easy App, ‘SmartKnight’ Outdoors, there’s plenty to choose from – whether the wide range of weatherproof wiring accessories featuring robust, easy-to-operate switched sockets and fused spur units or stylish 20AX outdoor switches; and outdoor enclosures In lighting, the latest developments include a new collection of recessed and surface-mounted downlights designed for the specification sector and intended for installation in light commercial, hospitality and high-end residential applications

GGD-Line fasteners go under-cover!

While D-Line has shaped a reputation around cable management for surface mounted cables, it’s notable how Safe-D fire-rated fasteners have become firm favourites under the surface!

For a channel with good substrate, single-piece D-Line Twin Stags can first-fix rest in a 5mm pilot hole, with no screw or wall-plug needed Then the open head can be closed around two cables, or to hold a 16mm or 20mm oval conduit, before being pushed home No screw or wall-plug is required

The surface can be boarded or plaster-finished in the knowledge that should it ever fail in event of a fire, the fire-rated Twin Stag Clips will hold the wires in-situ

With different solutions for different scenarios, D-Line likes to hear how innovative electricians are finding these under-cover applications.

Jonathan Davis, Director of DNA Electrical & Property Services in Southampton, explained: “We’ll often chase a channel to bury cables in oval conduits, that must be properly secured to eliminate risk of any movement that later might crack plaster finishes

“Recently we needed to rewire an older property with crumbly plaster and weaker bricks We appreciated the versatility of D-Line F40 and F50 clips We put F-Clips at the top and bottom of the trench, at 750mm centres in between, secured by screw-fixing through the base hole Then it was easy to locate the oval conduit, before ‘wrap & locking’ the F-Clips to give the

“We put F-Clips at the top and bottom of the trench, at 750mm centres in between, secured by screw-fixing through the base hole. Then it was easy to locate the oval conduit, before ‘wrap & locking’ the F-Clips to give the oval conduit a tight hold in a narrow channel.”

oval conduit a tight hold in a narrow channel The F-Clips are versatile and user friendly, doing a great job!”

Whether on the surface or behind a wall, D-Line’s fire-rated fasteners can tightly anchor conduits, as fast-fix and fire-safe solutions that give peace of mind for plastering works to follow For recessed installations, it’s worth keeping D-Line ‘out-of-sight, but not out-of-mind!’

ARMD ARMD GUARD Smart Van Alarm

ARMD has launched the ARMD GUARD Smart Van Alarm, its ‘plug and play’ sensor which provides the ultimate tool protection package combining smart technology with insurance Tested by the trade, the ARMD GUARD silently watches over your tools and in the event of a break-in the alarm triggers a phone call notification This instant alert allows you to take immediate action by calling the police and catching them in the act while it locates and tracks your van, if it is stolen, with the inbuilt GPS The ARMD GUARD sensor is a crucial piece of technology and deterrent in the battle against tool theft Many tool thieves use “peeling” – the cutting and bending back of a van panel – to get into the loading bay where tools are normally kept Many van alarms do not respond to this type of activity. No technical knowledge is needed to set up the ARMD GUARD in the van; it has been developed to be a simple “plug and play” installation in just two minutes Furthermore, it integrates seamlessly with the ARMD App, so that all your tool inventory, security, insurance, tool and van location is all in one place

ANSELL LIGHTING

Topline EVO CCT Batten

Ansell Lighting has added a new batten light to its industrial range Suitable for a wide variety of applications, the Topline EVO CCT Batten is a high-performance LED light capable of delivering an efficient 140lm/W Power selectable, it offers both high and low output power options and delivers excellent light uniformity thanks to a high transmittance polycarbonate diffuser Available in three lengths – 1200mm, 1500mm and 1800mm – a key feature of the new luminaire is that it is CCT selectable between 3000K, 4000K and 5700K, allowing users to choose their desired lighting hue. For added functionality, a range of additional options such as OCTO Smart Control, Digital Dimming, Corridor Function, Integral Microwave Sensor, Self-Test and DALI Emergency versions are also available. The product features an innovative spring clip gear tray release and is fitted with a Tridonic driver as standard It promises a long L70 54,000 hours LED lifespan and comes with a five-year warranty

MARTINDALE ELECTRIC Phase Sequence Indicators

When it comes to verifying the phase sequence, or rotation, of three phase circuits, Martindale Electric offers a professional range of testers Getting the phase sequence wrong can have devastating consequences for plant and machinery with serious implications for machine safety From motors running backwards through to cooling or lubricating systems underperforming, one wrong connection can lead to a major maintenance headache Providing enhanced user safety, the PSI4000 and PSI4300 non-contact phase sequence indicators can quickly and accurately identify three phase sequences for motor installations and other systems Designed for use on both insulated and non-insulated conductors, the units carry out measurements via inductive crocodile clips, which can be simply clipped on to speed up testing and reduce the risk of coming into contact with live parts LEDs provide a clear indication of phase rotation and have a high intensity setting when working in strong ambient light Both models also offer a buzzer indicator Similar in function, the only difference between the two-phase sequence indicators is that the PSI4000 provides a correct indication for clockwise sequence, as used in the building facilities industry, while the PSI4300 provides a correct indication for anticlockwise sequence as used, for example, in power utilities

‘Log’ on with the essential book selection from Docs-Store

Docs-Store has launched a comprehensive range of building logbooks related to the electrical system

With growing emphasis on the requirements for engineers to show what they have done and when, they offer guidance around the legal obligations of the responsible person for the building along with simple tables to aid capture relevant data. These logbooks are designed to help the user prove ongoing compliance within the building Engineers attending the building for any subsequent work will save time trying to locate historic information and will find the sections for system details and certificate records that are relevant in each book particularly beneficial.

Fire Safety Logbook – a complete logbook for on-site Fire Alarms and Emergency Lighting, this gives reference advice and contains the essential details of your system as well as the fire alarm testing register

Emergency Lighting Logbook – this references BS5266 Part 1 as the minimum Standard that emergency lighting systems should conform to and requires a comprehensive system of checking, maintaining and repairing all fire safety equipment on an on-going and regular basis

Fire Detection & Alarm System Logbook – this logbook aids the user with the comprehensive system of checking, maintaining and repairing all fire safety equipment on an on-going and regular basis, together with the appropriate level of training in fire safety for any employees

Electrical Installation Logbook – contains details of the distribution board and wiring used plus a recorded summary of work carried out, faults maintenance work and all tests for the building's electrical wiring system

AOV System Logbook – a complete logbook for smoke control systems or automatic opening vents (AOVs), it gives reference advice and contains the essential details of your system

CCTV System Logbook – this logbook is designed to help those responsible for CCTV systems to meet the recommendations of the 12 ‘Guiding Principles’, the relevant standards and, where relevant, current legislation which requires that where necessary to safeguard relevant persons

Disabled Call Alarm System Logbook – inspecting and testing disabled alarms on a regular basis ensures ongoing compliance with BS8300.

Landlords Fire Safety Logbook – from 1st October 2022 social landlords (including Private registered providers of social housing (PRPSH) and local authorities) are required to check that the smoke and carbon monoxide alarms in the property are working properly at the start of a new tenancy.

PAT Testing Logbook & Appliance Register – this logbook assists in demonstrating compliance with the Electricity at Work Regulations (HSR25) Records should be kept of the checks and tests carried out and the results of any inspections including the dates these were done. A record of any significant findings must also be made and should be retained for at least five years

Water Services Legionella Logbook – under health and safety law, as an employer or person in control of a premises (e g a landlord) there are health and safety duties and suitable precautions that must be taken to prevent or control the risk of exposure to Legionella. Records should be kept of the checks and tests carried out and the results of any inspections, including the dates these were done

Accident Report Book – this collects lots of useful information about each incident, broken down into a number of sections

SNICKERS WORKWEAR Waterproof Workwear

Whichever Snickers Workwear jacket you choose, you can count on real comfort and protection from rain and foul weather. Stay dry, warm and comfortable by choosing from a range of water-repellent jackets with welded seams that will keep you dry in light showers and deliver great breathability to ventilate your body when you’re active on-site If you need 100% waterproofness for long periods, check out the GORE-TEX jackets These highly technical garments are waterproof to keep you dry, windproof to keep you warm, and breathable to keep you comfortable all day long

KNIPEX CoBolt Range

KNIPEX

offers a range of tough CoBolt Compact Bolt Cutters designed to carry out those really hard cutting jobs out on-site. With 18 different tools in the CoBolt range, with sizes ranging from 160, 200 through to 250mm, there is a tool to suit a myriad of tough cutting applications In general use, the CoBolt range can be used for cutting nails and screws or for cutting wire mesh or fencing. Electrical contractors working with cable basket and cable tray will also find the range extremely useful, saving time and effort thanks to the tools’ engineering performance The 71 01 200 KNIPEX CoBolt Compact Bolt Cutter is a small tool that makes a big impact – those used to working with standard bolt cutters will appreciate how user-friendly the unit is Thanks to their practical size of 200mm and low weight of less than 400g, the strong KNIPEX CoBolt Compact Bolt Cutters are a powerful partner in demanding situations Even the hardest wire is no problem, and they master piano wire up to a diameter of 3 6mm reliably When cutting bolts, nails and rivets up to a diameter of 6mm (in the case of soft material), users benefit from maximum power and convenient handling The precision cutting edges made of chrome-vanadium high performance steel provide superior cutting-edge hardness, while the efficient lever action mechanism guarantees an extremely favourable lever ratio with simultaneously low friction Every cut hits the mark straight away: microstructures on the cutting edges hold the material in the perfect position, allowing the leverage of the CoBolt to take full effect: one cut – done!

RITHUM Rithum Switch

Smart home start-up, Rithum, has announced the launch of Rithum Switch; a third generation smart home control device that replaces an existing light switch and is also a thermostat The Rithum Switch gives installers and integrators an alternative option to a full-control system, offering a scalable and cost effective solution that provides control of the essentials, aimed at unlocking the underserved mid-market Whilst initially designed for residential applications, there has also been wide interest from hospitality, hotels and beyond By providing integrators a cost-effective and rapidly deployed control solution, integrators can focus on delivering better solutions for their clients, such as using budget on light fixtures or AV instead of a bulky control system The touchscreen device replaces an existing light switch or lighting keypad and offers control of third party systems such as Sonos, BluOS, Rako, FIBARO and HDANYWHERE, to name a few The new product now includes an ambient light and proximity sensor and a temperature sensor which means it can act as a thermostat out of the box Each Rithum Switch is smart in its own right; with no Rithum processor required just the system it is controlling, it is cost-effective and simple, but still effective

C AM E RA CAUGHT ON

SOCIAL SNAPS!

AUSTIN COSTELLO: Not a cable clip in sight Where do I even begin to start?

SHANE JACKSON: Diggers are the bane of my life! This one destroyed a number of underground cables, and continued to dig, destroying seven more further up the park. It was -5˚C while I undertook the repair on the 40mm SWA at 9pm!

NICK DAVIS: I’ve been testing for a well-known electrical contractor on a job for a very large financial institution in Canary Wharf Imagine my surprise when I opened this live sub mains chamber, to discover very poor ingress protection on a live bus bar and the confirmation of my incorrect phase rotation result

GRAHAM THEOBOLD: This was an interesting find from a hotel room in Richmond upon Thames!

RMT ELECTRICAL SERVICES: This mouse’s travels took a turn for the worse!

GARY: It did have a blank plate on! #condemned

SPARKLER: All the house lights are connected through this ‘wiring hub’ Presumably, the installer didn't like doing loop-through connections!

EDWARD FITZJOHN: Found this behind a cooker in a rental property The occupants said they replaced the cooker no screw in the terminal either!

ROBERT BLENKINSOPP: I’ll admit that this one left me speechless!

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 posts, or DM us your pictures and caption directly and you may just see your pictures featured on these pages or our website.

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.

WANT TO KNOW MORE?

TO HELP YOU FIND OUT MORE ABOUT ANYTHING YOU’VE SEEN IN THIS ISSUE, WE’VE INTRODUCED A NEW DIGITAL INFORMATION SERVICE.

RDR.LINK IS DESIGNED TO GET YOU FASTER ACCESS STRAIGHT TO THE EXACT ONLINE PLATFORM THAT HAS THE SPECIFIC INFORMATION YOU WANT.

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