SPARKS Winter Issue 2018

WINTER 2018

THE ONLY MAGAZINE FOR APPRENTICE ELECTRICIANS

INSIDE...

THE HITACHI POWER TOOLS REBRAND LEDS VERSUS TUNGSTEN THE CONSTRUCTION PRODUCT REGULATION LEVEL 2 & 3 EXERCISES

WIN! ALL-NEW AMAZON ECHO (2ND GEN)

HIGH PERFORMANCE, COMPACT DESIGN

DV18DBFL2/JM Brushless Combi Drill ✓ ✓ ✓ ✓

Hitachi original brushless motor technology 70Nm hard torque 2 x 3.0Ah compact Li-Ion batteries Compact & lightweight

www.hitachi-powertools.co.uk

EDITOR’S NOTE | WINTER ISSUE 2018 | SPARKS MAGAZINE

01

WINTER 2018

THE ONLY MAGAZINE FOR APPRENTICE ELECTRICIANS

INSIDE...

THE HITACHI POWER TOOLS REBRAND LEDS VERSUS TUNGSTEN THE CONSTRUCTION PRODUCT REGULATION LEVEL 2 & 3 EXERCISES

WIN! ALL-NEW AMAZON ECHO (2ND GEN)

EDITOR: BECKY MARTIN editor@sng-publishing.co.uk TECHNICAL CONTRIBUTOR: Michael Davies ADVERTISING: PATRICK BLORE sales@sng-publishing.co.uk GRAPHIC DESIGN: STUDIO 74 www.studio74.design

MANAGING DIRECTOR: NATACHA FIELDING

natacha.fielding@sng-publishing.co.uk

PUBLISHER: CELIA MATTHEWS

celia.matthews@sng-publishing.co.uk

PRINTERS

Stephens & George, England

GENERAL ENQUIRIES To subscribe to SPARKS Magazine call 0870 774 3049 or subscribe online at www.sparks-magazine.co.uk DISCLAIMER SPARKS Magazine is published by SNG Publishing Ltd (SNG).

All content and artwork is © SNG Publishing Ltd or its contributors and SNG is a trade mark of SNG Publishing Ltd. No part of SPARKS Magazine may be copied, transmitted or published in any form or by any means without prior permission.

Although SNG has made every effort to ensure the accuracy of this publication, it does not verify any claims or other information appearing in the advertisements contained in SPARKS Magazine. It therefore cannot accept any responsibility whatsoever for consequences that may arise from the content or artwork contained in SPARKS Magazine, including any errors or omissions or any opinions or advice given therein. This publication and its content is not a substitute for professional advice on a particular matter.

Advertisements are accepted for publication in SPARKS Magazine only upon SNG Publishing Ltd standard terms of advertising.

Welcome to the latest issue of SPARKS Magazine where we share with you everything you need to know in 2018 as an apprentice or student electrician.

Never ones to leave the syllabus behind, we have features on circuit protection, tools and cables. We also give you the heads-up on the upcoming Hitachi Power Tools rebrand by chatting to their brand manager Simon Miller. Watch this space as ‘HiKOKI’ promises to be everywhere later on this year!

As ever, we give you the chance to take a peek at another college. This issue, Coleg Gwent gets the ‘Through The Keyhole’ treatment. We’ve also included plenty of practice exercises for you towards the back of this magazine, so you can do some revision away from your text book. All of the answers are on our website so make sure you cross check yours against those.

The start of this year also marks the start of the SPARKS UK Electrical Apprentice of the Year Competition, with the heats taking place in seven different regions across the UK. Good luck if you are competing – we look forward to seeing you there!

Becky Martin EDITOR

© SNG Publishing Ltd, 2018

SPARKS-MAGAZINE.CO.UK

/SPARKSMAG

/SPARKSMAGAZINE

02 WINTER ISSUE 2018 | CONTENTS

SYLLABUS 36 Hand & Power Tools Multiple Choice Questions 38 Laws of Illumination 40 Lighting 42 Lighting Crossword 43 Types of Cable & Accessories 44 MICC Cable 45 Circuit Protection

PAGE 06

WI N

FEATURES 08 Hitachi Power Tools is Rebranding to Hikoki

Marketing Director, Simon Miller, talks about the future development of the company

10 Get Smart with CEDIA

CEDIA, the trade association representing the professional home integration community, promote their training schemes

12 Through the Keyhole

SPARKS Magazine has a nose around Coleg Gwent

14 It's All About Being Social

Hager encourage apprentices to get involved with their #HagerGang online campaign

16 CPR and Cables

PAGE 08

BASEC explains the extra meaning of CPR in relation to the electrical sector

18 From Scolmore...Cutting-edge Integrated LED Downlights

Scolmore showcase the latest offerings to their fire-rated, LED downlights range

20 20% of All Electrical Cable in the UK is Dangerous

The Prysmian Group highlight their campaign for making the manufacturing and importing of substandard electrical cable illegal in the UK

21 Saving Lives & Helping Contractors Stay Compliant

SWA promote their range of Firefly safety clips

22 The SPRINT System From Wiska

Wiska explains the 4-in-1 principle behind their new SPRINT system

24 MT Supertube Helps With Tate Modern Extension

PAGE 12

Marshall-Tufflex caused a stir when their MT Supertube was chosen to deliver electrical services at the new Tate Gallery extension

26 Toolbox of Delights

Malcolm Duncan from Klein Tools shares his top five toolbox essentials for apprentices

Draper Tools introduce the two new, high-quality VDE tools they’ve added to their product range

30 Getting to the Route of the Problem

C.K Tools reveals the four main issues electricians face when cable routing and how their C.K MightyRods PRO cable rods can help overcome these

PAGE 16

28 Essential Tools for Electricians

31 A Guide to Voltage Optimisation Units

CPN-Cudis explains how voltage optimisation units reduce electricity use

32 Embrace the Install Revolution

Armour Home urge electricians to look at built-in music and audio systems

The ECA highlights the need for increased recognition of work-based apprenticeships in schools and colleges

34 Work Safe, Stay Safe and Think Electricity

UK Power Network are urging electricians and tradespeople to work safe, stay safe and think electricity!

PAGE 30

33 "Time for Apprenticeships to be on Equal Terms with University Study"

35 Old Dimming + New Technology = Flicker & Buzz

Zano Controls explains why electricians should be switching to LED dimmers

REGULARS 46 Hall of Shame 48 App-rentice

49 Products & Services

COMPETITION 06 WIN an all-new Amazon Echo (2nd Generation) in heather grey fabric

PAGE 34

01 Editor’s Note 04 Industry News

04

SPARKS MAGAZINE | WINTER ISSUE 2018 | INDUSTRY NEWS

READ THE FULL STORY IN THE NEWS SECTION OF SPARKS-MAGAZINE.CO.UK

ARE YOU UP FOR A LIFE-CHANGING CHALLENGE IN 2018?

The Electrical Industries Charity is offering a once in lifetime opportunity. You could take on the Great Wall of China trek in 2018 which stretches 6000 km in a dotted line across China, or you could journey to the Lost City of the Inca – Machu Picchu.

Both of the challenges are part of the Charity’s Challenge for a Cause campaign which aims to raise £250,000.

To take part, please contact Charlotte Laurent: charlotte.laurent@electricalcharity.org  ELECTRICALCHARITY.ORG

CHARITIES BENEFIT FROM MARSHALL-TUFFLEX GENEROSITY Staff at Marshall-Tufflex ended 2017 on a high having donated more than £54,000 to charities throughout the year.

The East Sussex-based company prides itself on supporting a wide range of charities each year, with 2017 being no different.

Nationally the business gave to the Electrical Industries Charity, Comic Relief, Mind, Army Cadets, The Poppy Appeal and the Bobby Moore Fund, amongst others. Worldwide it worked with Rotary International on its Dentaid initiative.  MARSHALL-TUFFLEX.COM

MERCEDES-BENZ VANS UK CELEBRATE RECORD SALES

Scolmore has added another ‘everything you need in one box’ solution to its Click Smart range of intelligent wiring accessories with the launch of a new Click Smart Dimmer, which is designed to overcome the problems associated with flickering lights.

The solution to flickering rotary dimmers is to use a retractive switch instead of a rotary dimmer (wired). Everything required is contained in the box, including a dimming module, face plate and one retractive switch module.

In the first full year since MercedesBenz Vans UK Ltd became a legal entity, the brand continued to shine with a record-breaking eighth consecutive year of growth representing a 12% increase in total registrations, with 41,404 vehicles sold in 2017.

The vehicles themselves reached record levels of sales, including the best ever year for Vito (up 25% from 2016), Sprinter van (up 3%), Vito Sport (up 49%) and Vito Taxi, which more than doubled the previous record from 2013.

 CLICK-SMART.COM | SCOLMORE.COM

 MBVANS.CO.UK

SCOLMORE ADDS SMART DIMMER TO RANGE

06

SPARKS MAGAZINE | WINTER ISSUE 2018 | COMPETITION

ALL-NEW AMAZON ECHO (2ND GENERATION) IN HEATHER GREY FABRIC Introducing mySchneider Electrician Partner programme Be in with a chance to win an all-new Amazon Echo (2nd generation) in Heather Grey Fabric simply by registering for mySchneider Electrician Portal at: www.schneider-electric.co.uk/apprentice-electrician Select your college from the drop-down list and complete the registration form in order to enter. Competition closing date: 30th April 2018.

Join for FREE today to gain access to:

HURRY!

ION COMPETIT CLOSES 18 30 APR 20

 Online training  Support tools

 Industry news  Business tips and advice

Once qualified, you can also apply to become an approved Electrician Partner and receive further free benefits! If you are already a member, log-in today to see more on our latest promotions and giveaways.

See u Elexsh s at ow Lon do 31st J anuary n – 1st Fe bruary

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08

SPARKS MAGAZINE | WINTER ISSUE 2018 | INTERVIEW

HITACHI POWER TOOLS IS REBRANDING TO HIKOKI We talk to Simon Miller, Marketing Director for Hitachi Power Tools, about the company’s rebrand and its future development of innovative, professional power tools.

INTERVIEW | WINTER ISSUE 2018 | SPARKS MAGAZINE

SPARKS: What will Hitachi Power Tools now be known as?

SM: It is an exciting time for everyone here at Hitachi Power Tools, as we will be rebranding in late 2018 to “HiKOKI".

The rebrand marks the next step in our commitment to expand and become a market leader across the globe, following the acquisition earlier this year by KKR of our larger parent company, Hitachi Koki Co. Ltd. It will change its name to Koki Holdings Co. Ltd and Hitachi Power Tools will become HiKOKI (pronounced Hai-koh-key) from 1 October 2018.

SPARKS: Why are you rebranding?

SM: Hitachi Power Tools are designed to be high end and we have some fantastic, innovative tools already on the market. Our owners, KKR, have an ambitious international growth strategy, but to do this successfully we need to create a brand that delivers our key message – power tools that are top quality.

SPARKS: Tell us more about what we can expect.

SM: Although we produce high-end tools for professionals, historically, the Hitachi brand has links to the DIY market. This will change.

Going forward, the HiKOKI brand will be known as a professional brand.

SPARKS: Will there be a new product range?

SM: Over the coming 12 months, we will be launching innovative new power tools as we invest in, and transition to, the new HiKOKI brand. From October 2018 we will be carrying out a full rebrand on all existing tools and following that, all tools launched

09

Over the coming 12 months, we will be launching innovative new power tools as we invest in, and transition to, the new HiKOKI brand.

will carry the new brand. Breaking away from the Hitachi brand will remove the limitations on what we can produce and we can now expand into any sector.

Don’t expect the new tools to just be green with a new badge on them. Although at first the product range will be consistent with the existing Hitachi offering (and we have some incredible tools already) we also have some exciting plans for new high-end ranges of tools. We are going to innovate and improve end user working capacity and combine this with Japanese engineering skill, precision and reliability. Our game-changing tools will be at the forefront of the industry and technology.

SPARKS: Do current Hitachi Power Tools users benefit?

SM: Of course, our customers are so important to us. The warranties of any existing power tools will not be affected. In the future we will even look to extend and improve our warranties in line with the advances we are making to our tools.

As a company, we will ensure we maintain 100% compatibility with existing Hitachi battery platforms. Not only will the battery platform continue, it will significantly expand with higher end capability.

As regards end user support, we keep parts indefinitely after a product is discontinued so existing owners don’t need to be concerned that there will be no support for their current tools.

SPARKS: So what does the future hold for HiKOKI? SM: The Hitachi brand has spent over 70 years delivering award-winning innovation in the power tool market and now is the time for us to focus on expansion and delivering truly game-changing tools. We have fully committed to accelerate growth and will

pursue our goal to become a global leader in power tools. We are confident we can take our business to the next level, building a company that exceeds our customers' expectations, and the revamping of the brand name is the first step to making this possible.  For more information, visit hitachi.com

*See hitachi-koki.com/powertools for test details

10

SPARKS MAGAZINE | WINTER ISSUE 2018 | FEATURE

GET SMART WITH CEDIA

High-tech homes are no longer just for the rich and famous.

Smart homes

A professionally integrated and controlled smart home can be a reality for middle income homeowners, with systems scaled to suit different price points and budgets. In these projects, a full spectrum of home technology devices and sub-systems can now be connected to provide home entertainment, security, heating, lighting, energy management, voice and video telecommunications, and assisted living benefits to more and more homeowners.

These technologies can be professionally integrated to provide maximum convenience to occupants in operating the home, whilst giving them the best possible access to a wide variety of external digital services.

Training for a growing market The expansion of this exciting market is creating a growing demand for skilled labour, creating significant opportunities for the workforce of tomorrow.

In this context, CEDIA, the trade association representing the professional home integration community, offers high quality training for electrical engineering students who are looking to progress their careers in the fastdeveloping world of smart home technology.

At the beginning of 2016, CEDIA launched its City & Guilds Smart Home Technician programme. City & Guilds training courses are recognised as an industry standard, valued by employers across the world, and proven to help individuals develop their talents and abilities which can further their career progression.

Face-to-face training is offered at CEDIA’s newly expanded training facility in St Neots, Cambridgeshire and at industry partner venues across the UK. Combining a range of CEDIA courses, this programme allows students to develop a comprehensive knowledge across the industry.

CEDIA’s Smart Home Technician programme features twelve courses from the CEDIA Boot Camp, Technical and Networking schools.

Attendees to the course undertake modules on Home Cinema and HD Video Distribution, Rack Building and Wiring Fundamentals, Smart Home Control and Lighting Systems, and Wireless Residential Networking before sitting the certification examinations (ESC-T and ESC-N). This programme will help students gain a unique overview of the smart home installation process and will improve specific skills in a variety of topics.

Face-to-face training is offered at CEDIA’s newly expanded training facility in St Neots,

Cambridgeshire and at industry partner venues across the UK. Offerings include not just dedicated classroom-based courses and certifications, but e-learning too. In total, CEDIA now offers over 100 online resources for self-paced training. In addition, CEDIA continues to make training more mobile friendly and interactive.

CEDIA’s Training and Curriculum Guide, which lists the full training programme for the year, is on the CEDIA Training website. For students, the guide is a useful tool for understanding how to progress in the industry.

 To find out more, or to book a place onto one of CEDIA’s City & Guilds Accredited courses, visit cediaeducation.com

SLIM SHAFTED SCREWDRIVERS FOR EASY ACCESS TO RECESSED SCREWS

• Dual component handle • VDE approved • Slim blade

The New C.K dextroVDE Slim screwdrivers provide easy access to recessed screws.

Eliminating the need to remove insulation and compromise safety, they are slim enough to fit into the tightest of spaces yet still offer outstanding torsional strength and feature active torque feedback for an extended working life.

For more information visit www.ck-tools.com

12

SPARKS MAGAZINE | WINTER ISSUE 2018 | FEATURE

Ever fancied having a nose around another college? Then look no further. This issue we went through the keyhole at Coleg Gwent to indulge the nosey parker in you and we liked what we saw!



WHERE

Coleg Gwent is one of Wales’ top performing colleges. It is also one of the biggest with over 20,000 students across five campuses and a business training centre, serving the boroughs of Blaenau Gwent, Newport, Caerphilly, Torfaen and Monmouthshire.

The college was ranked ‘excellent’ by the Welsh Government in 13 out of 24 subject areas and has an excellent A Level pass rate of 99%.

In addition, businesses and individuals can get professional training from Coleg Gwent Business, either in the workplace or at our commercial training centre. An extensive range of vocational courses across all major sector areas provides a huge choice of career pathways.

FEATURE | WINTER ISSUE 2018 | SPARKS MAGAZINE



EXPERT LECTURERS

In recent years they’ve significantly grown their HE profile, offering Foundation Degrees, HNCs and HNDs in partnership with the University of South Wales, University of Worcester and Aberystwyth University.

Coleg Gwent lecturers have years of industry experience behind them so not only do students learn from experts, but they also get offered advice on getting a job after college or even starting their own business.

Last year, lecturer Gareth Jones was appointed to the highly coveted role of WorldSkills Expert for Electrical Installation and recently returned from accompanying Team UK to Abu Dhabi for the 2017 world finals in October. Gareth will continue to work with WorldSkills UK as a training manager alongside his role at Coleg Gwent.

 Visit coleggwent.ac.uk



SPARKS APPRENTICE OF THE YEAR WINNER

Closer to home, Electrical Installation student Thomas Seward brought back a silver medal from the 2017 National Finals of the WorldSkills UK competitions held at the Birmingham NEC in November. Following on from this success, Thomas has also been selected for Squad UK to further train with a chance of representing the UK in Kazan, Russia in 2019.

Nineteen-year-old Thomas is currently an apprentice with P.I.Lewis Ltd but when he was crowned overall winner of the SPARKS UK Electrical Apprentice of the Year Competition in March this year, he was still a full time student at Coleg Gwent’s Blaenau Gwent Learning Zone and yet to go out on the tools!

13

14

SPARKS MAGAZINE | WINTER ISSUE 2018 | SPONSORED FEATURE

IT’S ALL ABOUT BEING SOCIAL Over the last five years the use of social media has vastly increased.

Whether you’re a tweeter, checking in on Facebook or having the perfect #nofilter on Instagram, most of us are using one of these digital platforms.

As you progress with your career, you can use social media to your advantage to promote your skills or your new business venture.



Follow us on @hageruk on Twitter, like our posts on Instagram with @hager_uk and watch us on /hageruktv on YouTube.

SO, HOW CAN YOU MAKE IT WORK FOR YOU? HERE ARE SOME TIPS:

1

Promote your work

2

Be social

3

Keep it professional

4

Join #HagerGang

Social media is a great way to promote your hard work and attention to detail in every install you do. So, tell people about it. Post a picture of your work, explain what you’ve done and who it was for. Make sure you post regularly. From a socket to a large commercial board, show pride in what you’ve been working on.

It’s all in the name. Social Media is about interacting with other users. Use #hashtags to find conversations about topics you’re interested in and get involved. Learn from others and share your experiences with your counterparts.

All your hard work promoting what you do can be ruined with a few, or in some cases, a single post. You’re not only promoting your work, but who you are as a professional.

So make sure you use common sense. If you’re unsure about posting something, use this as a rule of thumb: would you say it out loud in a coffee shop?

Here at Hager we have the #HagerGang. As soon as you tweet us a picture (@hageruk) of your latest Hager install using #HagerGang, you will be part of our team. We’ll send you a t-shirt as a welcoming gift but that’s just the start. By being part of the #HagerGang, you can interact with other Hager Gang members, share your best practice, join in debates and learn tips that you can use for your next install.

New multifunction tester

The complete single-phase installation tester MFT1711 Includes the features you demanded ¢ Auto RCD test ¢ 2 and 3 wire non-trip loop tests ¢ Zmax for final ring circuit testing ¢ Variable and selective RCD tests ¢ TRMS Voltage measurement Combined with Meggers leading input protection system, auto start capability and menu free operation, the MFT1711 ticks all the boxes!

Call 01304 502 101 for your free leaflet or visit uk.megger.com Megger Ltd, Archcliffe Road, Dover, CT17 9EN, UK. T. 01304 502 101

16

SPARKS MAGAZINE | WINTER ISSUE 2018 | SPONSORED FEATURE

CPR AND CABLES: WHAT IS IT?

You may have heard of CPR from first aid training’, but there is now an extra meaning of CPR for the electrical sector – it means the Construction Products Regulation.

For cables of all types (power, data and fibre optic) that are fixed into buildings and other structures, this now means extra requirements and a fire classification code for each product. There are several performance classes, from low (Eca) to very high (Aca).

test, similar to a Bunsen burner or blowtorch.

At the higher classes (Dca up to B1ca) a large-scale test is used, similar to a fire inside a vertical shaft or duct. This test also provides information on smoke emission and burning droplets, and will be used for better performing cables.

Regulations Right now, there are no requirements in the IET Wiring Regulations BS7671 to use particular CPR classes of cable for particular applications, but this may change during the life of the 18th Edition, due this year. Watch this space.

In the meantime, look out for CPR classes on cable packaging and in customer specifications. You may find traditional PVC cables such as BS 6004 twin and earth that appear at class Eca. Low smoke halogen free cables such as BS 6724 armoured may appear with classes like Dca, Cca or even higher. Some customers are already beginning to ask for specific classes for their buildings, so it will be important to check with them that you are using the right CPR class of cable for the job.  For more details, visit basec.org.uk

Correct labelling All cables used for fixed installations in buildings now have to be supplied with a CPR fire classification, the correct labelling including a CE mark, and an important document called the Declaration of Performance (DoP). Cable manufacturers and suppliers have spent the last few years having their products tested, and will now be labelling products and supplying DoPs.

Fire tests Several different fire tests are applied to cables, depending on the class. At the lowest level (class Eca) is a simple flame

...look out for CPR classes on cable packaging and in customer specifications.

18

SPARKS MAGAZINE | WINTER ISSUE 2018 | SPONSORED FEATURE

FROM SCOLMORE...

CUTTING-EDGE INTEGRATED LED DOWNLIGHTS

The latest additions to Scolmore’s range of fire-rated, LED downlights, Inceptor Omni and Inceptor Nano5, are proving highly successful since they were launched last year.

With flexibility and ease of installation as vital attributes, Inceptor Omni’s key features are an adjustable colour temperature switch, allowing the selection of colour temperatures to suit the installation, interchangeable fixed and adjustable bezels, and an insulation support clip for use when insulation is present. It is this combination of features that Scolmore believes positions Inceptor Omni as unique in the marketplace.

Inceptor Nano5 is a compact, fire-rated, dimmable downlight, which packs an array of features into its shallow profile.

COLOUR TEMPERATURE SWITCH – a builtin, three position switch allows for instant change of the colour temperature. In utilising the latest Chip On Board COB LED lighting technology and using a faceted front lens, Scolmore has modified the single point of light to give a dichroic effect, resulting in a halogen type illumination.

BEZEL OPTIONS – each Inceptor Omni has the option for a fixed or adjustable bezel. It comes with the fixed bezel as standard in the desired finish - White, Chrome or Satin Chrome.

A simple twist and lock feature means the bezel can be quickly and easily replaced.

INSULATION SUPPORT CLIP – the removable insulation support clip fixes directly onto the Omni. This means that insulation is lifted away from the unit, maintaining a minimum air space and helping to dissipate any heat generated.

Inceptor Nano5 is a compact, fire-rated, dimmable downlight, which packs an array of features into its shallow profile. The

competitively priced, high-performance 4.8W LED downlights are suitable for a variety of domestic applications.

There are two models: Inceptor Nano5 Fixed and Inceptor Nano5 Adjustable, which allows the luminaire to be moved and directed to where light is needed.

Both feature a compact, high-powered driver, which is suitable for installation in a fire rated ceiling. Inceptor Nano5 Fixed is designed for a 60mm cut out, to fit a recess depth of 45mm, while the Adjustable version is designed for a 75mm cut out, with a recess depth fitting of 54mm.  To see Inceptor Omni and Nano5 in action, and for further details, visitscolmore.com

Email sales@scolmore.com or contact Scolmore on 01827 63454.

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Thanks to the unique design and variety of product accessories, WISKA can offer superior cable gland flexibility. The SPRINT System offers such features as: a wide clamping range (e.g. M20 clamping range 6.2 - 14mm), various insert options (flat cable, multiple cable insert combinations and reduction inserts), EMC inserts options, IP68 protection, fast installation, Halogen free/ LSF, vibration proof, Venting fitting options and explosion proof options are also available.

The SPRINT System from WISKA… One Gland, One Solution.

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SPARKS MAGAZINE | WINTER ISSUE 2018 | FEATURE

20% OF ALL ELECTRICAL CABLE IN THE UK IS DANGEROUS

Prysmian Group, the largest manufacturer of electrical cable in the UK and part of the largest global cable manufacturer, has been campaigning for many years to make the manufacturing and importing of substandard electrical cable into the UK illegal.

Industry estimates that 20% of all the cable in the UK is substandard, nonapproved or counterfeit* and that some 4,000 fires in buildings each year are down to faulty electrics1.

“Properly manufactured and tested electrical cable is very safe”, says Llyr Roberts, CEO of Prysmian in the UK, “but cable that is substandard or is being used in the wrong situation is a real hazard that can electrocute and causes fires.”

“As a responsible manufacturer, Prysmian ensures that all of its products conform to the most rigorous quality standards and we are appalled that substandard and dangerous cable is still allowed into the UK market.

“For many years we have been calling for appropriate legislation to prevent substandard cable – typically manufactured abroad – being brought into the UK supply chain. We support the British Approvals Service for Cables (BASEC) and actively promote the Approved Cables Initiative (ACI), both of which have been established and supported by the cable industry to try and stop dangerous cable getting into UK homes.”

The new European Construction Product Regulation (CPR), which came into effect in

*Figures from the Approved Cables Initiative | 1From Home Office Fire Statistics for 2015/2016

July 2017, is a step in the right direction.

CPR makes it a legal requirement for cable sold in the UK to carry documentary evidence from the manufacturer identifying exactly which standards it conforms to but even this regulation does not apply to all types of cable.

There is a clear need for straightforward legislation that makes it illegal to import, sell or install cable that is not manufactured and tested to approved and declared BASEC quality standards.

We support the British Approvals Service for Cables (BASEC) and actively promote the Approved Cables Initiative (ACI)...  Visit prysmiangroup.com

FEATURE | WINTER ISSUE 2018 | SPARKS MAGAZINE

SAVING LIVES & HELPING CONTRACTORS STAY COMPLIANT SWA’s range of Firefly fire safety clips solve a real problem – and one that can have tragic consequences, too.

While overhead cabling does not normally present a risk (in fact, having cables neatly out of reach in plastic trunking is a very sensible safety measure), all that changes as soon as a fire breaks out.

The plastic quickly melts and the combined weight of the cables brings it all down, blocking escape routes in offices and industrial buildings. Those fallen cables then become a major safety hazard as people try to escape, often in poor visibility because of smoke and amid noxious fumes. From 2004 to 2014, there were 14 fatalities as a result of people becoming entrapped in cables. The figure includes firefighters, who are at particular risk of entanglement because of the equipment they carry.

Firefly clips SWA’s innovative Firefly clips have been specifically designed to solve this deadly problem, while at the same time complying

fully with the new regulations brought in to tackle it.

Their unique spring-loaded design ensures they dig in tighter as a fire takes hold, embedding themselves firmly into the substructure they are affixed to and virtually eliminating the risk of overhead cables falling.

The spring loading also allows for the easy addition or removal of cables in the months and years after installation.

Award-winning design Crucially, they have been proven to retain their shape and strength in the searing temperatures of a building fire. Firefly fire safety clips recently won eight Warrington Fire Safety Certificates, covering the entire range.

The tests were conducted using Prysmian Plus

fire alarm cable, and the clips stayed in place as temperatures reached 930ºC for 120 minutes, easily surpassing the required resistance time of 45 minutes set to allow fire alarms to ring for as long as possible.

The comprehensive Warrington procedure also included a shock and water spray test.

Firefly safety clips are 100% compliant with the BS7671:2015 Wiring Regulations, which make it mandatory to secure all surface cables in escape routes. The regulations, which came into effect from July 2015, prohibit non-metallic clips or plastic trunking as the sole means of support for fire alarms, HVAC, CCTV and general electrical cabling.

Scan to view Firefly Fire Safety Clip video or visit: https://www.youtube.com/ watch?v=V-f8diEFh-8&t

 Contact sales@swaonline.co.uk

21

22

SPARKS MAGAZINE | WINTER ISSUE 2018 | FEATURE

THE SPRINT SYSTEM FROM WISKA From the world’s first polyamide cable gland (ISOSTABIL) to the iconic SPRINT System, WISKA offers you 99 years’ worth of experience in cable management.

WISKA is your expert for cable entries and protection.

The SPRINT System (comprising of polyamide, brass and stainlesssteel cable glands) offers a solution for any type of cable. Thanks to the unique design and variety of product accessories, WISKA can offer a superior cable gland to suit almost any cable.

cables and everything in-between! WISKA’s SPRINT System is your one stop shop for all your cable entry needs.”

The 4-in-1 principle

The SPRINT System offers features:  a wide clamping range (e.g. M20 clamping range 6.2 - 14mm)  Various insert options (flat cable inserts suitable for twin and earth, multiple cable insert combinations and reduction inserts)

 EMC inserts  IP68 / IP69 protection  Fast installation  Halogen free / LSF  Vibration proof  Venting fitting options  Explosion proof options are also available.

The 4-in-1 principle (see diagram) shows the combinations of Cap Nuts, Sealing Inserts, EMC Inserts and Fittings available using the SPRINT System and how seamlessly all of these products work together.

Terry Boswell, WISKA UK’s Sales Engineer, said: “If you need a cable gland, the SPRINT System has what you’re after. From straightforward flex cables to twin and earth cables to braided

The SPRINT System from WISKA… One Gland, One Solution.

 Find out more at wiska.co.uk or contact Terry himself via t.boswell@wiska.co.uk

Dedicated BS 7671 guidance for students The handy Student’s Guide to the IET Wiring Regulations gives you all you need to make using BS 7671 quick and simple.

Written by a former college lecturer with students in mind, the book includes diagrams and examples to help explain and clarify the requirements of BS 7671.

This book helps you to: ■ ■ ■

Understand technical terminology Learn how to find the information you need, every time Improve confidence when working with BS 7671

Order now at

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24

SPARKS MAGAZINE | WINTER ISSUE 2018 | FEATURE

MT SUPERTUBE HELPS WITH TATE MODERN EXTENSION It’s not often a cable management installation creates a stir but this is just what happened when a standard conduit solution was chosen to deliver electrical services at London’s £260m Switch House, the extension to the Tate Modern art gallery.

The design allowed no voids for cable concealment in floors, walls or ceilings.

Consequently, an in-situ cable management solution was required to feed electrical services through the 10-storey concrete core of the building.

Teamwork Close co-operation between the contractor, architect and building services consultant was required, along with highly accurate working drawings and an intensive design phase prior to each concrete pour.

“This was the first installation of its kind we had ever been contracted to carry out,” said a REL spokesman. “We not only learned a lot about alternative approaches to cable management installation but we realised how valuable a flexible approach can be and the importance of interdisciplinary collaboration in addressing complex project challenges, both at design stage and through active engagement on site.”

Previous phases of the build had used traditional galvanised conduit but contractors REL Building Services considered this costly and unworkable, opting instead for Marshall-Tufflex’s MT Supertube. It was embedded within the concrete core and installed floor-by-floor ahead of the concrete pour for each storey.

This was the first installation of its kind...

MT Supertube During each level of the core build MT Supertube was fabricated on the deck level and threaded through the steel rebar, bending to fit around the steelwork before being secured to the rebar with cable ties.

Layers of insulation tape were applied to each conduit connection over a 50mm width each side to ensure no moisture penetration.

Installers allowed an excess of some two metres of conduit to protrude beyond the concrete to connect the next sections after each pour. The conduit’s smooth inner surface allowed cables to be inserted using a traditional draw wire, enabling cable pulls of up to 50m through a tube with no fittings and minimal risk of cable snagging.

MT Supertube is a lightweight tube-style conduit. Its three-layer construction (polyethylene internal and external layers sandwiching a welded aluminium tube) delivers strength that is pliable by hand.

 Visit marshall-tufflex.com

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Strength in Quality

26

SPARKS MAGAZINE | WINTER ISSUE 2018 | FEATURE

TOOL BOX OF DELIGHTS When you start out in the electrical industry, it pays to invest in a few good quality tools, which will see you through most – if not all – of your career.

Here Malcolm Duncan from Klein Tools shares his top five toolbox essentials for apprentices.  For further information on Klein Tools product range visit kleintools.com





WIRE STRIPPERS

VOLTAGE TESTER

A decent pair of wire strippers can do the job of 3 different hand tools, so ensure you buy a pair that can strip different types of wire (solid, stranded and Romex) like Klein Tools’ self adjusting wire strippers. Our strippers also feature a handy wire cutter in the handle, to save time swapping between tools.

A good quality voltage tester is essential to keep you safe at work.

Look for non-contact voltage detectors as these can find AC voltage in cables, cords, circuit breakers, light fixtures and switches without touching live wires or faulty installations. Our non-contact voltage tester can detect up to 1000V AC and even comes with a built-in torch to light up dark workspaces.





5 PIECE SCREWDRIVER KIT

LOCK OUT KIT

Screwdrivers are the bread and butter of any electrician’s toolbox. Start off with a selection of five of the most frequently used, including a mix of sizes and tip types (slot, Philips, keystone), and look for screwdrivers with a cushion grip handle. They might cost a bit extra but they are more comfortable to use and offer better torque.

If you need to lock off circuits or electrical kit for testing or inspection, then a lock out kit is a must-have to keep you safe while you carry out your work. The MCG lockout kit available at CEF, includes 5 different types of breaker lock outs, a multiple lockout hasp, a labelled padlock, and a pack of do not operate tags for clear lockout identification, all supplied in a strong canvas pouch allowing the kit to be carried at all times.

 TOOL BACKPACK To keep the tools you have got organised and in tip top condition, a decent tool bag is a sound investment. As well as the more traditional bucket and tote style bags, you can also get tool backpacks – great for keeping hands free and for taking on the bus.

TRADE GET IT NEXT DAY Order by 6pm FREE DELIVERY on orders over £45* FREE RETURNS REQUEST YOUR FREE CATALOGUE TODAY! FREEPHONE: 8AM-6PM, 7 DAYS A WEEK

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SWA’s Firefly Fire Safety Clip range wins Industrial Product of the Year Award The full range encludes a variety of clips to secure cables both inside and outside trunking and conduits.

Hurry - Don’t miss out, closing date 28th February 2018

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28

SPARKS MAGAZINE | WINTER ISSUE 2018 | FEATURE

NEW FROM DRAPER TOOLS:

ESSENTIAL TOOLS FOR ELECTRICIANS Draper Tools has introduced two high-quality new VDE tools to its range, both designed with the professional electrician in mind.

Ergo Plus® VDE Approved Fully Insulated Plier & Screwdriver Set The 9 Piece Ergo Plus® VDE Approved Fully Insulated Plier & Screwdriver Set is the first of the new additions. Manufactured to DIN Standard and individually certified to EN 60900, this set is part of the Draper Expert range of tools, so it’s made to withstand frequent trade use.

Each plier in the set is manufactured from special tool steel with the cutting edges additionally induction hardened for longevity.

The screwdrivers are manufactured from hardened and tempered CRV steel with a chemically blacked finish. For maximum comfort fully insulated ergonomic soft grip handles are fitted to both the pliers and screwdrivers.

...these pliers are Professional Quality, tested to 10,000V and insulated to 1000V AC and 1500V DC for live line working.

Tested to 10kV, this set is suitable for working on live circuits of 1kV AC and 1.5kV DC. To safely store each screwdriver and plier, the set comes packed in a convenient vinyl wallet.

Knipex VDE 160mm Electricians Dismantling Pliers Also new to the Draper Tools range is the Knipex VDE 160mm Electricians Dismantling Pliers. These are ideal for dismantling and stripping round sheathed and damp-proof installation cables.

Thanks to their circular cutting edge, they enable easier access into deep mounted junction boxes, easily stripping cables without damage.

Universally useful, the precision 1.5 and 2.5 mm² wire stripping holes and diagonal cutters can be used for conductors, wires,

small screws and nails. All the cutting edges are additionally induction hardened for a longer life.

Manufactured from oil-hardened chrome vanadium steel, these pliers are Professional Quality, tested to 10,000V and insulated to 1000V AC and 1500V DC for live line working.



These two new VDE essentials are just part of Draper Tools’ wide range of electrician’s tools, to see the full range visit: drapertools.com

KNIPEX Quality – Made in Germany

KNIPEX Cobra® Hightech Water Pump Pliers > Push the button for adjustment on the workpiece > Fine adjustment for optimum adaptation to different sizes of workpieces and a comfortable handle width > Self-locking on pipes and nuts: no slipping on the workpiece and low handforce required > Gripping surfaces with special hardened teeth, teeth hardness approx. 61 HRC: high wear resistance and stable gripping > Box-joint design for high stability due to double guide > Reliable catching of the hinge bolt: no unintentional shifting > Guard prevents operators’ fingers being pinched

KNIPEX Cobra® KNIPEX Alligator® Water Pump Pliers More output and comfort compared to conventional water pump pliers of the same length: 9-notch adjustment positioning for 30 % more gripping capacity Good access to the workpiece due to slim size of head and joint area > Self-locking on pipes and nuts: no slipping on the workpiece and low handforce required > Gripping surfaces with special hardened teeth, teeth hardness approx. 61 HRC: high wear resistance and stable gripping > Box-joint design for high stability due to double guide > Robust construction, insensitive to dirt; particularly suitable for outdoor work > Guard prevents operators’ fingers being pinched

KNIPEX Alligator® For more details please contact: Contact UK North: Mr David Barnes 07464847278 Contact UK South: Mr Richard Beesley 07770898298

www.knipex.com

30

SPARKS MAGAZINE | WINTER ISSUE 2018 | FEATURE

GETTING TO THE ROUTE OF THE PROBLEM

When it comes to completing a job, it’s always good practice for electricians to take the ‘customer is always right’ approach to ensure great feedback and repeat business.

At times, this may mean taking a less efficient route in the completion of a job to ensure minimal aesthetic interference to the customer’s property.

This presents a common challenge for tradespeople: keeping customers’ fixtures and fittings intact when moving cables in floors or ceilings, which often requires electricians to route cables through small, dark gaps.

While cable rods make a huge difference when it comes to efficiency and dealing with issues such as this, C.K Tools reveals the four issues which are still faced by electricians when cable routing and how the groundbreaking C.K MightyRods PRO cable rods eliminate these common problems.

1 Splintering Every tradesperson is well acquainted with cable routing and the subsequent risks of snagging and painful splinters. The innovative C.K MightyRods PRO has been designed specifically to combat these exact issues, featuring ultra-slim profile connectors to reduce snagging and provide accessibility through smaller holes. Splintering occurs when rods are drawn across rough surfaces, so C.K tools has introduced SplinterSHIELD, Europe’s first 100 per cent splinter proof material that protects the rods’ fibreglass core, keeping sparks’ hands splinter free.

2 Flexibility A major challenge every electrician encounters when cable routing is flexibility, or a lack thereof! A tight access corner can be extremely challenging to navigate, especially when standard rods that claim to feature high tensile strength fail to bend to reach their destination. Bending all the rules, the C.K MightyRods PRO set includes a 4mm SPIRAFLEX rod, which is super flexible and glides around tight access corners that standard, rigid rods just couldn’t reach.

3 Darkness

 Visit ck-tools.com

Routing across suspended ceilings or raised flooring where there’s no natural light is considered by many electricians to be

both time consuming and frustrating. While tradespeople can see into a gap, often space is limited and using a torch may not be an option. Enlightening sparks to a new way of working, the C.K MightyRods PRO set includes the innovative phosphorescent 6mm Glo Rod, which glows in the dark, helping electricians to see exactly how close they are to a specific cable. This handy addition greatly increases efficiency and effectiveness.

4 Strength The tensile strength of cable rods is hugely important when routing cables. Attempting to pull a trapped cable using force can result in rods snapping and disconnecting, losing expensive equipment in the fixtures. The C.K MightyRods PRO has an unsurpassed tensile strength of 275kg, more than half the weight of a grand piano! The rods are supported by triple fixed, mighty-fix zincplated connectors, a feature that eliminates weak joints between rods and allows the product to be used to its full potential without fear of disconnection.

While electricians face many challenges when cable routing, with the input and insight of the electricians who must overcome these issues on a daily basis, C.K tools has produced the next generation of cable rods, which uses advanced technology to create a new level of efficiency.

FEATURE | WINTER ISSUE 2018 | SPARKS MAGAZINE

31

A GUIDE TO VOLTAGE OPTIMISATION UNITS Overvoltage is a huge waste of both energy and money. Jason Hallam, technical manager at CPN-Cudis, explains how voltage optimisation units reduce electricity use.

What is voltage optimisation?

Voltage optimisation is an accepted and proven technology, which can provide energy savings by up to 15 per cent. If the reduction in supply voltage is carefully matched to the needs of the electrical equipment it is possible to make a substantial energy saving.

Because the European market is far larger than the UK market, electrical equipment is predominantly designed to operate most efficiently at 220v (the agreed European harmonised supply voltage), which means that a considerable proportion of electrical equipment consumes more energy the higher the supply voltage applied to it. It makes more sense to reduce the supply voltage nearer to the lower end of the CE voltage range. With the right type of equipment, you will see roughly a two per cent reduction in energy consumption, for every one per cent reduction in voltage.

The benefits Voltage optimisation units offer many benefits to the end-user, the most significant being that it decreases energy consumption and lowers carbon emissions. Overvoltage is not only a huge waste of energy and money, but it can also decrease the life of electrical appliances. A television that should have a life span of about eight years, can be reduced to just a couple of years because of overvoltage.

Therefore, the voltage optimisation unit has a secondary saving by increasing the life of electrical equipment and reducing electrical breakdowns.

Different types of equipment deliver various levels of energy saving for the same reduction in voltage. For example, in an

office or commercial setting, when a voltage optimisation unit is installed, fixed speed motors (typically found in air conditioning units and machine shops) provide a very good energy saving, non-thermostatically controlled heating (such as towel rails and hand dryers) have a high saving and mains frequency lighting even higher.

Installing a VO unit The CPN-Cudis B60 is a single-phase voltage optimisation unit, suitable for residential, small business and light commercial applications. It reduces the incoming supply voltage by 18V and is equipped with short circuit, overload and protection. The B60 has third party testing approval to meet EMC and LVD standards.

Fitting the unit is straightforward and it can be easily installed by a qualified electrician.

The B60 is designed to be installed between the main electricity meter and consumer unit, in the most practical and accessible position available. It is a simple three wire connection. The installation location should

Voltage optimisation units...decrease energy consumption and lower carbon emissions. be clean, dry and well ventilated.

When discussing the benefits of installing a voltage optimisation unit with a customer, the fact that you are selling a saving should make it a simple decision. The financial benefit combined with the positive environmental impact of energy saving products, such as voltage optimisation units, provides customers with a strong reason to buy the product.  For more information about CPN-Cudis’ B60 single-phase voltage optimisation unit, visit cudis.co.uk

32

SPARKS MAGAZINE | WINTER ISSUE 2018 | FEATURE

EMBRACE THE INSTALL REVOLUTION Jonathan Bennett, Marketing Director at Armour Home, explains how…

The rapid development in technology over recent years has resulted in a growing demand for built-in music and audio systems both in the home and in corporate spaces. This has provided an exciting opportunity for electricians to diversify and add to the portfolio of services they provide, whilst increasing their income.

At Armour Home, we have a number of brands that provide install audio solutions for the home (Systemline), corporate and commercial spaces (Q Acoustics Install and Audica).

All our products have been designed to be simple to install – even for those who are just entering the profession.

It is extremely important to us that the end customer has an enjoyable experience and can appreciate the product’s full potential once it has been installed.

Therefore, ensuring that electricians can fit the solution properly and can confidently demonstrate how to use it, particularly in cases where the electrician may be the customer’s only face-to-face interaction with the company, is essential.

Easy installation To guarantee this, we have ensured that the installation process is as simple as possible.

For example, Systemline’s S7, which is an advanced multi-room audio solution, has an online tool which allows electricians to create a quote simply by inputting which speakers and keypads the customer would like to install in each room on the Systemline website.

We also have a Technical Brand team that fully supports electricians during the install process by providing advice and configuring the IT system once it has been wired.

Integrated audio systems certainly provide the ‘wow factor’ to any home and with the recent advancement in technology these innovative solutions are becoming far more accessible and in demand.

We are committed to helping electricians take advantage of this exciting opportunity to grow their portfolio and maximise their sales.

 For further information visit armourhome.co.uk

It is extremely important to us that the end customer has an enjoyable experience and can appreciate the product’s full potential once it has been installed.

FEATURE | WINTER ISSUE 2018 | SPARKS MAGAZINE

33

“TIME FOR APPRENTICESHIPS TO BE ON EQUAL TERMS WITH UNIVERSITY STUDY…” …says Andrew Eldred, ECA Director of Employment and Skills.

Skills shortages If I were to give you two options – take up an electrical apprenticeship in which over four years you could earn over £60,000, or go to university, at the end of which you would be saddled with debts of around £44,000 – which would you choose?

There are 100,000 reasons and more why the smart option would be to go for an apprenticeship.

It’s widely known that within engineering there is an ongoing skills shortage. However, recent YouGov survey findings, commissioned by leading electrotechnical and engineering services trade association ECA, the Joint Industry Board, and training provider JTL, show that very few young people are being encouraged into the industry.

In fact, less than 1 in 12 students (8 per cent) aged 15 to 18 in school or college in 2016/2017 were advised to seek a work-based apprenticeship afterwards.

This compares to some 85 per cent of students being encouraged to go into further or higher education, such as university study.

Raising awareness of apprenticeships The electrotechnical industry has a great

story to tell about the range of career opportunities that an apprenticeship can bring.

Given our industry is constantly evolving and is often at the cutting-edge of new technological developments, there will continue to be great opportunities along the way.

One approach to raising awareness could be utilising apprenticeship ambassadors, such as recent ECA Edmundson Apprentice of the Year Jordan Bancroft of Imtech Engineering Services, to talk in schools about the benefits and opportunities from a technical qualification. Jordan, for example, worked on the Olympic Stadium Transformation Project, which converted the stadium into a multi-use sporting venue.

If we are able to use ambassadors such as Jordan to help promote our industry, then in time apprenticeships may ultimately be given equal billing with university study. The ultimate goal - a revolution in career opportunities for young people – is one that we should not pass up.  Visit eca.co.uk

TOTAL INCOME AFTER FOUR YEARS

UNIVERSITY V ELECTROTECHNICAL APPRENTICESHIP

Andrew Eldred

80,000

Of course it’s not all about the money.

An apprenticeship also results in an electrotechnical engineering qualification, opening the door to many more career possibilities and a profession that will provide an income throughout your working life. Engineering technicians can earn around £40,000 per year, while chartered engineers are paid over £60,000.

Contrast this with the university route, which provides an academic degree, but at significant cost and, in many cases, little certainty about future job prospects. In fact, over 58 per cent of UK graduates actually work in non-graduate jobs, according to research from the Chartered Institute of Personnel and Development.

INCOME (£)

60,000 40,000 20,000 0 -20,000

University Electrotechnical Apprenticeship

-40,000 -60,000

CAREER CHOICE

Given our industry is constantly evolving and is often at the cutting-edge of new technological developments, there will continue to be great opportunities along the way.

34

SPARKS MAGAZINE | WINTER ISSUE 2018 | FEATURE

WORK SAFE, STAY SAFE AND THINK ELECTRICITY Sadly, life can be lost within seconds or terrible life-changing burns can be inflicted if you come into contact with electricity.

UK Power Networks are urging electricians and tradespeople to Work Safe, Stay Safe and Think Electricity.

In 2015/16, over 70,000 tradespeople suffered injuries at work.

More often, this results in taking time off and losing money. How would this affect you and your family?

It can be all too easy for busy tradespeople to be in a hurry, get distracted or not bother to check for electricity service cables when working on site.

Cables are not always visible, they can be hidden or out of sight.

The simple step of accurately locating service cables buried underground, hidden behind walls or under floorboards before starting work can mean you return home safe to your families at the end of each working day.

We’re proud of our strong safety record. Please take the time to read the full article ‘Work Safe. Stay Safe. Think Electricity – Safety Article for Tradespersons(s)’ on our website www. ukpowernetworks.co.uk/safety, download your FREE safety leaflet, and most importantly, think electricity.

 For more on electrical safety, visit ukpowernetworks.co.uk/

internet/en/about-us/regulatory-information/

SEND US YOUR SAFE MOMENTS: #BEBRIGHTSTAYSAFE

FEATURE | WINTER ISSUE 2018 | SPARKS MAGAZINE

35

OLD DIMMING + NEW TECHNOLOGY = FLICKER AND BUZZ Lighting technology has changed. LEDs are rapidly replacing tungsten lamps in domestic and commercial spaces – so why aren’t we also switching to LED dimmers to control them?

Old dimming vs new technology LEDs are a world apart from tungsten lamps – and not just in terms of the energy they consume.

LEDs run on a continuous forward current unlike tungsten, which uses an alternating current.

Why does that affect dimming?

We’re glad you asked…

A TRIAC dimmer, used for donkey’s years to control everything from Edison lamps to CFLs, is made for resistive loads. Pair an LED lamp with an old fashioned dimmer that was made for tungsten, and it will flicker and buzz.

Flicker and buzz A small copper coil is built into every TRIAC dimmer. As TRIAC dimmers switch at the peak of the cycle where there are maximum volts, the energy has to flow somewhere when it switches off. Where does it go? Through to the coil, which tries to absorb it, and across the cable network, which bleeds it in to the LED power supply. The result: flicker and buzz.

How can you fix it?

With a TRIAC dimmer – you can’t. LED lamps need to be paired with digital dimming technology. No coil? No flicker, no buzz*.

Our multi-award winning ZGRIDLED+ replaces the copper coil with digital software, for flawless dimming control on 5-250W circuits.

LED lamps need to be paired with digital dimming technology. No coil? No flicker, no buzz*.  For further information visit zanocontrols.co.uk

*when paired with good quality, compatible LED

36

SPARKS MAGAZINE | WINTER ISSUE 2018 | EXERCISE

Practice Multiple-Choice Questions for Hand & Power Tools Coverage of the practices and procedures for the preparation and installation of wiring systems in EAL Unit QELTK3/04, EAL 7345 and C&G Unit 305.

Q1

A plumb-line is used to provide which of the following?

Ans.

Q6

A vice consisting of two parallel jaws is NOT suitable for holding which of the following?

a

Horizontal levels between two points

a

Flat, square metal bar

b

Vertical alignment between two points

b

Tubes, pipes and round bar

c

To measure the height of a vertical surface

c

Timber planks

d

To measure the depth of a cavity in a wall

d

Plastic trunking

Q2

A device used to determine heights at the same level over long distances, between locations of a different height or around corners, is which one of the following?

Ans.

Q7

The purpose of the flutes on a twist drill is to...

a

Allow coolant to be poured onto the point of drilling

a

Water level

b

Allow good air flow to the point of drilling

b

Plumb-line

c

Ensure the drill rotates smoothly

c

Spirit level

d

Allow the swarf or waste material to be removed freely

d

Extendable tape

Q3

Which one of the following types of saw is best used, when cutting timber to make noggins for fitting between wooden joists, in a roof space?

Q8 Ans.

Which of the following safety equipment is essential when drilling holes in any material?

a

Neoprene gloves

a

Junior hacksaw

b

Face mask

b

Engineers hacksaw

c

Safety helmet

c

Electrically operated jig saw

d

Safety glasses or goggles

d

Carpenters panel saw

Q4

A hand-tool marked IEC 60900 ‘VDE tested’ means that...

a

The tool can be used at 1200V

b

The tool is insulated to a maximum of 1000V

c

The tool is mechanically tested

d

The tool is only suitable for live electrical working

Ans.

Q9

When marking a line on a newly painted wall to ensure alignment of conduit saddle fixing points. the best method is to use...

a

A straight-edge and pencil

b

A straight-edge and marker pen

c

A spirit-level and chalk line

d

A spirit-level and scriber

Ans.

Ans.

Ans.

Ans.

It is dangerous to strike the faces of two claw

Q5 hammers together. Which of the following descriptions explains why?

Ans.

Q10

When storing flat files used for removing metal, which one of the following is bad practice?

a

The hammer heads could fall off the handles

a

Throwing them together in a tool box

b

The surface of each face could become dented

b

Wrapping each file in paper

c

The shock can split the wooden handles of each hammer

c

Keeping the file separate from each other

d

The hardened steel can fracture and fly off at high speed

d

Laying them down side by side

Go to sparks-magazine.co.uk to download exercise answers for free

Ans.

Light that lasts easy to specify and install since 1928

5 Y E A R WA R R A N T Y W W W. T H O R N L I G H T I N G . C O . U K

38

SPARKS MAGAZINE | WINTER ISSUE 2018 | EXERCISE

Laws of Illumination Coverage of electrical science and principles in EAL Unit QELTK3/08, EAL 7345 and C&G Unit 309.

Q1. LIGHTING TERMINOLOGY: Define the flowing terms and show the symbol used to represent the unit and / or quantity.

Term

Definition

Unit/s

Luminous Intensity

Luminous Flux

Illuminance

Luminaire

Luminous Efficacy

Q2. POINT-TO-POINT LIGHTING PROBLEMS: Point-to-Point lighting calculations concern specific points of illumination, taking into account the light intensity, the distance the light source is from the surface and the angle at which the light ‘strikes’ the surface. The calculations are precise. DO NOT consider the illumination of whole areas such as floors, walls and ceilings.

State the names of the two laws that apply to Point-to-Point lighting calculations: i) ii)

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EXERCISE | WINTER ISSUE 2018 | SPARKS MAGAZINE

Q3. CALCULATE THE FOLLOWING: i) The intensity of a light source is 8500cd and is located perpendicular to a surface 4m beneath it.

What is the illuminance (E) at the surface?

8500cd

4m

E E=

ii) The illuminance (E) if the light source is raised to a height of 5m from the surface to be illuminated.

5m

E E=

Q4. CALCULATE EACH OF THE FOLLOWING: i) EA = 2800cd ii) h =

θ h

3m d

iii) Cos θ =

EA

EB

x 4m

iv) EB =

Q5. CALCULATE THE LIGHT LEVEL THAT WILL BE MEASURED AT POINT EB, ASSUMING NO OTHER LIGHT IS PRESENT: 1600cd

EB =

5m

EA

6m

EB

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SPARKS MAGAZINE | WINTER ISSUE 2018 | EXERCISE

Lighting Coverage of the practices and procedures for the preparation and installation of wiring systems in EAL Unit QELTK3/04, EAL 7345 and C&G Unit 305.

You will need BS7671:2008 +A3 2015, Requirements for Electrical Installations.

 The following questions concern Luminaires & Lighting Installations: Q1. Identify five examples of outdoor lighting installations. i) ii) iii) iv) v)

Q2. Give one example of street furniture.

Q3. Define the term ‘highway power supply’.

Q4. Identify the type and characteristics of a switch required for the isolation of supplies to high voltage (HV) signs.

Q5. Define the following terms found in Regulation group (559.3 and 559.4).

i) Festoon

ii) Pelmet

iii) Track

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EXERCISE | WINTER ISSUE 2018 | SPARKS MAGAZINE

Q6. State the maximum operating voltage of a standard ceiling rose.

Q7. A device designed to support a pendant luminaire must be capable of carrying a mass of how many kg?

Q8. Explain the meaning of the following lamp-holder references (B15, B22, E14, E27 and E40).

Q9. Define the following three terms relating to lighting:

i) Luminaire

ii) Ballast

iii) Stroboscopic effect

Q10. Answer the following questions relating to a low pressure mercury (MCF), luminaire:

a) Identify the functions of the following component found in the MCF luminaire

i) ii)

b) State the meaning of the abbreviation ‘MCF’

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SPARKS MAGAZINE | WINTER ISSUE 2018 | EXERCISE

Lighting Crossword Use the clues below to complete the following crossword.

1

2

3

4

5

6

7

9

8

10

11

12

ACROSS:

DOWN:

1 4 5 7 10 11 12

2 3 4 6 8 9

Device used to soften light High pressure sodium discharge lamp Designed to produce light One lumen per square metre Unit of luminous flux Inert gas used in display lighting Ratio of luminous flux emitted to power consumed

Amount of light falling on a surface 50 volts and under Low pressure sodium discharge lamp A package of light energy Standard filament lamp Inductive ballast used in MCF luminaries

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EXERCISE | WINTER ISSUE 2018 | SPARKS MAGAZINE

Types of Cable & Accessories Coverage of the practices and procedures for the preparation and installation of wiring systems in EAL Unit QELTK3/04, EAL 7345 and C&G Unit 305.

Complete the missing words using the IET BS7671:2008 +A3 2015 On-Site Guide (OSG) where appropriate.

ď‚Š PVC Steel Wire Armour (SWA) Cable Q1. The difference between the BW and CW cable gland is that the CW gland can be used.

Q2. PVC SWA cable can be attached to cable tray, laid directly in the ground or

Q3. The minimum internal radius of a bend formed in a steel wire armoured cable with circular stranded conductors and a diameter of 60mm is (Table D5 IET OSG)

Q4. Some SWA cable may use solid aluminium conductors, the internal bend radius of a four–core cable that has a diameter of 120mm

is

(Table D5 IET OSG)

Q5. A steel wire armour cable is to be clipped directly to a brick wall. The cable is first run vertically for approximately 4.4m and then

horizontally for approximately 8m. The cable has a diameter of 18mm, the estimated number of cable cleats required is

(Table D1 IET OSG)

4.4m

8m

Solution:

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SPARKS MAGAZINE | WINTER ISSUE 2018 | EXERCISE

MICC Cable Coverage of the practices and procedures for the preparation and installation of wiring systems in EAL Unit QELTK3/04, EAL 7345 and C&G Unit 305.

ď‚Š The following questions relate to mineral insulated copper clad cable and the tools required when terminating this cable.

Q1. What is the main design feature of MICC cable?

Q2. State the intended purpose of MICC with the following PVC coloured sheath:

(i) Orange

(ii) Red

(iii) White

Q3. The following images show tools specifically designed for use when working with MICC cable. Name each tool and state its function.

B A

D C

E Q4. State the insulation material used to separate the conductors in a MICC cable.

Q5. Briefly explain how the copper conductors of a MICC cable should be insulted at a typical termination.

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EXERCISE | WINTER ISSUE 2018 | SPARKS MAGAZINE

Circuit Protection Coverage of the planning and selection for the installation of electrotechnical equipment and systems in EAL Unit QELTK3/04a, EAL 7345 and C&G Unit 304.

To answer the following questions you will need the IET Requirements for Electrical Installations: BS7671:2008 +A3 2015.

ď‚Š Circuit protective devices: Q1. State the minimum current rating currently available for a BS88-3 fuse.

Q2. A certain circuit is protected by a 60A rated BS3036 fuse and is designed to disconnect in 5 seconds. What fault current will be

required to achieve this disconnection time?

Q3. A 500A BS88-2 fuse operates at a fault current of 5400A. How long does it take for the fuse to operate?

Q4. Identify: (a) The name of the device shown below, and (b) the type of fuses used in the device. (a)

(b)

Q5. The Time / Current characteristic curves for circuit-breakers to BS EN 60898 and RCBO’s to BS EN 61009-1 have a distinctive

shape. What do the two parts of the curve represent?

Q6. How long will it take to operate a 20A rated Type D circuit-breaker to BS EN 60898, if the circuit is subjected to an overload current

of 100A?

Q7. (i) State the operating current for Type B and Type C 63A rated circuit- breakers.

(ii) State the multipliers applicable to each type of circuit-breaker current rating to determine the operating current of the circuit-breaker.

(i) Type B

Type C

(ii) Type B

Type C

Type D

Q8. A distribution circuit is designed to carry a maximum load current of 60A.

(i) (ii) (iii)

(iv)

State the disconnection time applicable to this circuit if the supply system is TN-S State the rating of a suitable Type B circuit-breaker for this circuit What is the operating current for the chosen circuit-breaker?

Identify the maximum earth-fault loop impedance permitted for this circuit

(i)

(ii) (iii)

(iv)

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SPARKS MAGAZINE | WINTER ISSUE 2018 | HALL OF SHAME

HALL OF

While many electricians and electrical engineers are fully qualified and do a great job, there are still some people out there who do shocking work, and the results can be disastrous.

Here’s some examples of what not to do!

We teamed up with Voltimum and the ECA to showcase some of the biggest electrical tragedies around.

Contractor comment (@daylightNorfCo)...

Spent all day uncovering beauties like this. How does anyone believe this is acceptable? Property needs rewire.

Expert comment...

This is a terrible example of DIY gone badly wrong. I imagine that there were a lot more like this throughout the property too!

522.6.202 • 526.1 • 526.5

Contractor comment (@EastElectrical Weekend call out)...

Customer had lost the neu tral back at the main inta ke and we opened the door to this.

Expert comment...

This looks relatively new, though it is incredible tha t whoever did this can believ e it is adequate!

416.2.1 • 526.1 • 526.5

Contractor comment (@ ReliableElec)...

A bit of fault finding this morning.

If the trip keeps activating there is always a reason!

... t (@kva_northwest) Contractor commen st have been Their cup of tea mu What a poor effor t. gh? e they’re just that rou getting cold, or mayb Expert comment... htening ept of adequately tig Seems as if the conc nd this person. connections is beyo 526.1

Expert comment...

A good job this was found before it became more serious.

421.1.1 • 526.1

HALL OF SHAME | WINTER ISSUE 2018 | SPARKS MAGAZINE

IN ASSOCIATION WITH

)... sionElecLtd ment (@Envi m co r mperature to te ac e Contr lating th gu re is V TR e ea where th Nifty little id . #idiotic of the socket ment...

Expert com le socket! anted a sing w ly on nt ie the cl Well I guess 421.1.4

Contractor comment (@NigelLec Ltd)...

Customer says: “Every time I swit ch this light on the fuse blows.” Not surprised; live and neutral shorted, were tightly twisted and no CPC either.

Expert comment...

Looks as if the cables were very tightly twisted indeed.

Seems like another good exampl e of what can happen when non-professionals do elec trical work.

411.3.1.1

Contractor comment (Jason Kernohan)...

I came across this Home made control panel for a lathe. The block connector strip had been made into a live strip by soldering all the connectors together. I disconnected the supply there and then.

Expert comment...

Wow. Someone obviously had a vague understanding of what they were doing in order to make this work, but it always amazes me how difficult people make it. It would be simpler to just do it right!

416.2.1 • 526.1 • 526.5

If you’ve come across a nightmare installation, send your pictures to us and they could be featured on this page.

Email all photos to editor@sng-publishing.co.uk A big thank you to Voltimum and ECA for supplying us with the above photos. For further information, pop over to their websites. www.voltimum.co.uk | www.eca.co.uk

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SPARKS MAGAZINE | WINTER ISSUE 2018 | APP REVIEW

APP-RENTICE

Rag & bone, ringer, handset, mobile, bleeper, cell… whatever you call your phone, it’s unlikely that you’re ever without it. So why not use it to go further as an electrician?

We take a look at some of the latest apps that are available to make all of that sparky malarkey just a little bit more straightforward…

WISER BY DRAYTON CONTROLS Wiser is the next generation of smart heating controls from British manufacturer Drayton, part of Schneider Electric.

The user interface has been designed to be intuitive so homeowners will have no problem taking control of their heating.

Downloadable on both Android and iOS devices, set up can be done in seconds and programming couldn’t be easier. Boost, set point and room selections can be accessed from the home screen, while away mode, auto mode and manual mode are also available.

WAGO’s Interface Configuration App brings the power of a PC-based configuration software to mobile end-user devices.

WAGO’s 857 Series signal conditioner’s input and output parameters can be configured via finger swipe on an Android-based smartphone or tablet.

Furthermore, both configuration data and actual measured values can be easily displayed.

WAGO’s 750-921 Bluetooth® Adapter seamlessly communicates between a smartphone and the signal conditioner.

P R O D U C T S & S E RV I C E S

PRODUCTS AND SERVICES | WINTER ISSUE 2018 | SPARKS MAGAZINE

DR. MARTENS LAUNCH NEW MODERN OUTDOOR COLLECTION

If you would like the professional electricians of the future to know about your products or services, why not advertise in this section?

It’s cost effective and your brand will reach over 11,000 electrical students throughout the UK.

 Call 0870 774 3049 for details.  sparks-magazine.co.uk

FLUKE T6 ELECTRICAL TESTERS WITH FIELDSENSE TECHNOLOGY The new Fluke® T6 Electrical Testers with FieldSense Technology make troubleshooting safer and more efficient by allowing electricians to take simultaneous voltage and current measurements, not just detection, without test leads.

The Fluke T6 testers now make it possible to take reliable true-rms measurements in crowded junction boxes or along conductors with inaccessible end points, saving time. At the heart of the T6 testers is the new Fluke FieldSense Technology that enables the testers to give simultaneous, reliable voltage and current readings, not just simple go / no-go voltage detection.  fluke.co.uk

Dr. Martens’ new Modern Outdoor range has been specifically designed to offer workers immediate work boot comfort and allow for a seamless transition when replacing boots.

The new collection comprises of two innovative designs including Ridge ST and Grapple ST. Ridge ST S3 is a 6-tie hiker boots with water-resistant, rich, oiled leather uppers. It features a steel toe cap, anti-penetration midsole and antistatic properties. Grapple ST is a 6-tie, lightweight lace-to-toe work hiker in soft industrial grade tumbled leather uppers, and features an internal steel toe cap, padded collar and bellows tongue. The new Modern Outdoor Collection is available in the UK, in sizes 3-13.  drmartens.com/uk/modern-outdoor

SNICKERS’ NEW ALLROUND 37.5® INSULATOR JACKET This quilted jacket is padded with 37.5® fabric insulation for warmth and climate control to keep your body warm or comfortably cool when you most need it. With a water-repellent fabric, it can be worn on its own or combined with other Next Generation working clothes such as Base Layer fleeces and shirts or Outer Layer waterproof Shell Jackets. It has long arm cuffs with thumb grips for warm comfort and a high collar that delivers extra wind protection. Stretchable side panels provide comfort and flexibility with Cordura-reinforced elbows for durability and reflective arm details to provide enhanced visibility.  snickersworkwear.co.uk

HATS OFF TO SCRUFFS

MT CABLE CATCHERS MAKE SITE WORK SAFER

Lined with soft microfleece and padded with 3M Thinsulate™ the Scruffs Vintage Bobble hat is designed for warmth and comfort.

Now available in Black & Red! The Scruffs Vintage Beanie, now available in Graphite, offers a simplistic approach to style. It’s padded with 3M Thinsulate™ to lock in warmth and has an additional layer of soft microfleece, keeping you toasty - even on the coldest of days. The Scruffs Peaked Beanie, now available in Graphite, features a stylish knitted peak cap with turn-up hem and ear flaps, plus a soft sherpa lining for added warmth and comfort. Scruffs. For the masters at work, by the masters of workwear.

Innovative Cable Catchers by MarshallTufflex are designed to lift trailing cables off the floor and remove site trip hazards during the construction and installation stages of a new-build or retrofit project, allowing electrical contractors to work safely and in line with Health and Safety Executive recommendations. The product comes in two variants. The Cable Catcher Hanger holds up to nine 110v arctic cables with a maximum load of 5kg. Hang from scaffolding, cable trays and ceiling grids, space every two metres. Cable Catcher Patch is designed for finished surfaces and holds up to six 110v arctic cables with a maximum load of 1kg. Fix with damage-free adhesive backing, space every two metres. Available at leading electrical wholesalers.

 Call 0115 938 9000 or email sales@birchwoodpricetools.com

 marshall-tufflex.com

Email press releases to editor@sng-publishing.co.uk if you would like your product or service featured in this section

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