SPARKS Magazine - Summer 2017 by SNG Publishing

WINTER 2017 SUMMER 2017

THE ONLY MAGAZINE FOR APPRENTICE ELECTRICIANS

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EDITOR’S NOTE | SUMMER ISSUE 2017 | SPARKS MAGAZINE

WINTER 2017 SUMMER 2017

THE ONLY MAGAZINE FOR APPRENTICE ELECTRICIANS

INSIDE... COMPETITION REVIEW HALL OF SHAME SAVE THE DATE: CEF LIVE LEVEL 2 & 3 EXERCISES

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TOUGHBUILT® 16" MASSIVE MOUTH™ BAG

EDITOR: BECKY MARTIN editor@sng-publishing.co.uk TECHNICAL CONTRIBUTOR: Michael Davies ADVERTISING: PATRICK BLORE patrick.blore@sng-publishing.co.uk GRAPHIC DESIGN: STUDIO 74 www.studio-74.co.uk MANAGING DIRECTOR: 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 Summer Issue of SPARKS Magazine, where you can read all about the SPARKS UK Electrical Apprentice of the Year Competition, our major annual event. This year, the most striking thing for all of us here at SPARKS Magazine was how friendly, polite, professional and talented the competition entrants were. The finalists you will read about within these pages were a pleasure to spend time with and if they are the future, the industry is going to be first class throughout the UK. They are what the competition is all about and they make it the success that it is. You can read all about our Platinum sponsor Schneider Electric who generously provided all of the materials the competitors used in their bays for all seven regions, as well as the Grand Final, which was held at the amazing 3M Customer Innovation Centre in Bracknell. Test yourself with the exercises towards the back of the magazine, read all about the latest products and industry news and win yourself a Toughbuilt® 16” Massive Mouth™ Bag so you’re ready to enter next year’s competition, because we’d love to see you there!

Becky Martin EDITOR

SPARKS-MAGAZINE.CO.UK

/SPARKSMAG

/SPARKSMAGAZINE

02 SUMMER ISSUE 2017 | CONTENTS

SYLLABUS Defining Terms: Earthing and Bonding Special Locations Quiz Inspection, Testing and Commissioning Fault Diagnosis and Rectification Matching Terms and Meanings Electrical Principles Electrical Measuring Instruments

WI N PAGE 04

34 36 38 40 42 43 44

FEATURES 06 Sparks UK Electrical Apprentice of the Year Winner

Thomas Seward from Coleg Gwent wins the coveted title for 2017

08 Review of our Annual UK Competition

A round-up of this year’s successful event which now includes Northern Ireland

News from our 2017 platinum sponsor

10 When the Lecturers Met the Manufacturers

Our annual lecturer's CPD event proved to be as popular as ever

12 The Final Countdown

SPARKS Magazine gets the low down from this year's eight competition finalists

PAGE 08

09 Schneider Electric, Supporting the Next Generation of Electricians

14 How to be a Winner

We share some of the things we learnt at this year's UK competition

16 Bahco's New 'Slim Blade' Screwdriver Solution

Bahco reveal how they've solved the problem of reaching sunken screws and spring elements, particularly in confined spaces

CPN-Cudis explain how electricians can protect themselves against the potential dangers of working with electrical systems

18 The MFT with the Most

Megger showcase their new MFT1731 multifunction installation tester

20 "Safety First" with Testo's Electrical Instruments

PAGE 10

17 A Guide to Surge Protection Devices

Testo ask if electricians really know the safety features of their instruments

21 Click Smart: Scolmore's 'Back to Basics' Smart Solutions

Scolmore highlight the benefits of their 'Back to Basics' range of Click Smart Intelligent Wiring accessories

22 Smart Sense

Honeywell discuss what makes a thermostat 'smart'

24 Knipex: Pliers You Can Rely On

Knipex offer advice on choosing good quality tools

25 CEF Live 2017

Get the low down on CEF Live, which returns to Birmingham's NEC on 8 & 9 June

PAGE 18

26 Snickers WorkTrousers Are Now Getting Even 'Smarter'

Snickers explain how their WorkTrousers are getting 'smarter' thanks to the integration of technology

28 Through the Keyhole

SPARKS Magazine has a nose around Petroc College

SPARKS Magazine chats to the author of the Student's Guide to the IET Wiring Regulations

32 Shining a Light on Talent

EAL champion the benefits of skills competitions for electrical apprentices

PAGE 24

30 Interview with Steven Devine

REGULARS 37 Teabreak Time 46 Hall of Shame

COMPETITIONS 04 WIN a ToughBuilt® 16" Massive Mouth™ Bag 35 WIN a £50 Amazon voucher from 3M

48 App-rentice 49 Products & Services

PAGE 26

01 Editor’s Note 05 Industry News 35 Tweet All About It!

SPARKS MAGAZINE | SUMMER ISSUE 2017 | COMPETITION

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INDUSTRY NEWS | SUMMER ISSUE 2017 | SPARKS MAGAZINE

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

INDUSTRY UNITES TO FOCUS ON ELECTRICAL APPRENTICESHIPS In an attempt to shake up the industry to improve the way it attracts, trains and retains young people, a white paper has been launched about the future of apprenticeships. The white paper, written by Malcolm Duncan, Managing Director at Super Rod, discusses the strengths and weaknesses of current apprenticeships, routes to learning and how the industry can attract the talent it needs for future growth. It’s a follow up to the industry roundtable hosted by Super Rod last September. The easy-to-read and free to download white paper is intended to open the apprenticeships debate up to more people within the industry.  SUPER-ROD.CO.UK/APPRENTICESHIP/JPEG

ANSWER YOUR FRONT DOOR FROM THE OTHER SIDE OF THE WORLD WITH ESP

Hager has launched the new Sollysta Twin USB socket. Complying to the latest standards (BS 1363-2:2016), it is suitable for charging most portable electronic devices connected via a USB 2.0 and 3.0 type A plug. It includes two USB charging ports capable of delivering a total maximum charging current of 2.4A. The charge can be delivered to either port or divided between the two ports. With built-in intelligent connection, the dual USB adapter communicates with the automatic host charger identification circuitry for USB dedicated chargers.

WISKA have introduced the TKS 32, which is a multiple cable entry solution created to make installation easier. The TKS 32 is a membrane with 4 entries, giving IP 66 protection and cable retention (according to EN 62444) for quick and easy installation. You simply have to push the TKS 32 into the unit and insert cable through the membrane to complete installation. The TKS 32 is suitable for 16 or 25mm tails and 10 or 16mm earth. The sleek low profile design allows for a flush fitting, helping to save on space.

ESP has launched a Wi-Fi Door Station which allows you to view and talk to visitors at your home whether you are on the premises or not. Using the free ESP app from a smart phone or tablet, homeowners can easily see who is at the door or gate, engage in two-way communication and allow remote access if they choose. The Wi-Fi Door Station comes in a kit containing everything required for the installer to quickly and simply get the system up and running, including the Wi-Fi door station, power supply, 10DB Wi-Fi antenna, micro SD card (pre-installed) and LAN terminal. For a successful set up, the installer must ensure that the user’s smart phone is connected to the Wi-Fi network, the Door Station is within the network’s Wi-Fi range and that the key/password is available.

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WISKA GO TO THE TOP WITH THEIR TAILS KIT

SPARKS MAGAZINE | SUMMER ISSUE 2017 | UK COMPETITION

Sponsors featured in main photo (L-R): Richard Colwell from BASEC, Chris Day from 3M, May Lee from Schneider Electric

We caught up with the 2017 SPARKS UK Electrical Apprentice of the Year winner straight after his name was announced at the grand final. Thomas Seward from Coleg Gwent is just 18 years old and he is still a full time student, which makes his victory all the more impressive. We managed to have a chat with him in the midst of the excitement. SPARKS: How does it feel to be the winner of a UK competition? TS: I can’t describe it. I had butterflies when my name was announced because I wasn’t expecting it! SPARKS: What made you think about entering? TS: I took part in the WorldSkills regionals last year and it gave me a taste for competing. I wanted to try this one because I thought it would be a good experience with it being a different type of competition. SPARKS: How did you cope with completing the task in a given time over two days? TS: I had to pace myself and make sure I didn’t rush it and make mistakes, but at the same time I couldn’t work too slowly and not finish. It was very much about attention to detail.

SPARKS: How did you get on with the other contestants? TS: I mixed well with them. Everyone was open with each other and we bonded well. SPARKS: Who are you going to call first to let them know that you have won? TS: My mum! SPARKS: What has been the best part of the competition overall? TS: Just taking part has been the best and being a part of the final. SPARKS: Do you think you’ll use Schneider Electric products in the future after using them throughout the competition? TS: Yes, definitely - they’re good quality. SPARKS: What attracted you to a career in the electrical industry? TS: I’ve always wanted to be a part of a trade and this one stood out to me. It looked like the most interesting. SPARKS: What’s your least favourite thing about the industry? TS: I haven’t found out yet! I don’t like the fact that it takes four years to get qualified but I know that you reap the rewards in the end. SPARKS: What’s the main thing you’ll take away from the whole competition experience? TS: That you should never doubt yourself.

 FOR ALL THE LATEST COMPETITION NEWS VISIT SPARKS-MAGAZINE.CO.UK

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SPARKS MAGAZINE | SUMMER ISSUE 2017 | UK COMPETITION

W E I V E R N O I COMPETIT

This year the SPARKS UK Electrical Apprentice of the Year Competition was bigger than ever before because we had seven regions and eight finalists. Top that off with the best venue we’ve ever held the Grand Final at and you’ve got yourself a seriously great competition! As soon as the regional finalists arrived at the 3M Customer Innovation Centre on Wednesday 8th March, the two-day challenge to find the overall UK winner began…

The finalists were given ten hours over two days to go head-to-head in an attempt to be crowned the SPARKS UK Electrical Apprentice of the Year. Our Platinum sponsor Schneider Electric once again provided all of the quality materials the students were using in their bays, just like they did in the regional heats. Our sponsors also donated some incredible prizes – over £8000 worth, in fact – so there was even more incentive for the competitors to win. The standard of work made marking extremely difficult for our judges because each and every contestant would have been a worthy winner, so well done to each and every finalist: you were fantastic! If all of this has sparked your interest and you’d like to enter next year, then keep an eye on our website, Twitter and Facebook to stay posted on how you can enter the 2018 competition. We’d love to see you there!

 FOR ALL THE LATEST COMPETITION NEWS VISIT SPARKS-MAGAZINE.CO.UK

COMPETITION SPONSORS

UK COMPETITION | SUMMER ISSUE 2017 | SPARKS MAGAZINE

PLATINUM SPONSOR

SCHNEIDER ELECTRIC SUPPORTING THE NEXT GENERATION OF ELECTRICIANS Schneider Electric were proud to be this year’s Platinum Sponsor of the SPARKS UK Electrical Apprentice of the Year Competition, supporting all entrants on their journey through the competition and beyond.

As a global specialist in energy management and automation, we believe that recognising and rewarding talent among young electricians is key to the future success of the electrical industry. That’s why we are committed to supporting, encouraging and investing in the development of young people who are training to work in the sector.

Regional heats As 2017’s Platinum Sponsor, we attended the SPARKS UK Electrical Apprentice of the Year regional heats to support the students as they got to work on some of our products.

The Easy9+ consumer unit is a great fit for apprentices as well as professional electricians. Entrants were challenged to build a system within a restricted timeframe using the Easy9+ consumer unit, Lisse wiring devices, conduits and cable clips. This gave them the opportunity to work with some of our latest ranges and see the benefits of them in action. The Easy9+ consumer unit is a great fit for apprentices as well as professional electricians. It boasts an improved design to offer cabling space where it’s needed most, clearly numbered terminals with conductor clearance, and easy-to-read label kits. The crisp white modern design aligns perfectly with our Lisse white moulded wiring accessories, which have clean curved edges and are also cleverly designed with many time and space saving solutions.

At the regional heats, we also spent time with the lecturers from the attending colleges, presenting the growing trends we are investing in and showcasing the products the students were working on that day. We focused our discussions around the rise of smart homes and the increasing demand for smart electricians, exploring how our products integrate with this growing trend. One of the products presented was the Drayton miGenie smart thermostat, which is controlled via a phone app from anywhere in the world and has options for multiple heating zones.

 For the latest product news, training opportunities, support tools and much more, visit our free mySchneider electrician portal at schneider-electric.co.uk/electricianpartner.

 FOR ALL THE LATEST COMPETITION NEWS VISIT SPARKS-MAGAZINE.CO.UK

SPARKS MAGAZINE | SUMMER ISSUE 2017 | UK COMPETITION

WHEN THE LECTURERS MET THE MANUFACTURERS Every year SPARKS Magazine runs a CPD day for lecturers across the UK, where they are given the chance to discuss and see first hand the latest products available for electricians. In turn, the best manufacturers around are given a unique opportunity to interact with the brand ambassadors teaching their future clientele. Itâ&#x20AC;&#x2122;s a win-win situation! These Meet The Lecturer presentations take place whilst our student competitors are knuckling down in their bays in the annual SPARKS UK Electrical Apprentice of the Year Competition. This year certainly did not disappoint, as it featured an array of interactive demonstrations, product showcases and free goodies.

Here are the manufacturers who took part and joined us in seven different regions across the UK

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

KNIPEX Alligator® Water Pump Pliers

www.knipex.de

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 robust construction, insensitive to dirt; particularly suitable for outdoor work

For more details about the Knipex range of tools, and for details of your nearest stockist please contact: Alex Garami 0777 543 74 69 a.garami@knipex.com

SPARKS MAGAZINE | SUMMER ISSUE 2017 | UK COMPETITION

THE FINAL COUNTDOWN Whilst they were anxiously waiting to find out who would be crowned the winner of the SPARKS UK Electrical Apprentice of the Year Competition and enjoying a brew, we asked all of this year’s finalists some quick-fire questions. JOE MONTGOMERY

TRAFFORD COLLEGE

E JOSHUA PAYN

H COLLEGE OF

FARNBOROUG

TECHNOLOGY

be a finalist in does it feel to SPARKS: How tition? a major compe f and it’s a sed with mysel ea pl ry ve I’m JP: ent. great achievem best part of t has been the SPARKS: Wha n overall? the competitio tical. e? k into the prac uc of the experienc JP: Getting st allenging part ch t os m e th . perfect t’s been SPARKS: Wha hing has to be because ever yt g in ep ke e m JP: Ti n years’ time? e yourself in te se u yo do re lots of money. SPARKS: Whe m and making fir g bi a ity, who r fo with one celebr JP: Working a desert island on k uc st re u we SPARKS: If yo d why? an be it d ul wo f! so I can get of lls ry JP: Bear G

KIERAN ROBERTS

CORNWALL COLLEGE CAMBOR

be a SPARKS: How does it feel to ? tion peti com or maj a in finalist good KR: Very good – it’s a far. this e com achievement to best SPARKS: What has been the rall? part of the competition ove explained properly. KR: How everything has been t challenging part of the SPARKS: What’s been the mos experience? -trained electricians. KR: Competing against other well rself in ten years’ time? SPARKS: Where do you see you KR: In a hot country! a desert island with one SPARKS: If you were stuck on why? celebrity, who would it be and  say ’t can ret, KR: Sec

SPARKS: How does it feel to be a finalist in a major competition? JM: It’s a massive achievement to get this far, although winning it would be even better. SPARKS: What has been the best part of the competition overall? JM: Day 2 – twin and earth installatio n. SPARKS: What’s been the most chal lenging part of the experience? JM: Making the conduit bends to the given measurements. SPARKS: Where do you see yourself in ten years’ time? JM: Project Manager at NG Baileys. SPARKS: If you were stuck on a dese rt island with one celebrity, who would it be and why? JM: Zlatan Ibrahimović because he seem s a right laugh.

ALEX TOON

LEICESTER COLLEGE

SPARKS: How does it feel to be a finalist in a major competition? AT: I feel really honoured and surprised. SPARKS: What has been the best part of the competition overall? AT: Meeting the fantastic SPARKS team  SPARKS: What’s been the most challenging part of the experience? AT: Waiting for the results. SPARKS: Where do you see yourself in ten years’ time? AT: Hopefully retired on a sunny beach. SPARKS: If you were stuck on a desert island with one celebrity, who would it be and why? AT: Tom Hanks so I could be Wilson.

 FOR ALL THE LATEST COMPETITION NEWS VISIT SPARKS-MAGAZINE.CO.UK

UK COMPETITION | SUMMER ISSUE 2017 | SPARKS MAGAZINE

THOMAS SEWARD COLEG GWENT SPARKS: How does it feel to be a finalist in a major competition? TS: It feels good to get this far. SPARKS: What has been the best part of the comp etition overall? TS: Actually finishing on time. SPARKS: What’s been the most challenging part of the experience? TS: Working out the wiring spec.

THOMAS LEWIS

SPARKS: Where do you see yourself in ten years’ time? TS: I see myself as a fully qualified electrician, maybe with

CARDIFF AND VALE COLLEGE

SPARKS: How does it feel to be a finalist in a major competition? TL: It feels really good to get this far. SPARKS: What has been the best part of the competition overall? TL: Getting ever ything done on time. t SPARKS: What’s been the mos e? rienc expe the of part ing leng chal TL: Working out my plan and how I was going to wire it. in SPARKS: Where do you see yourself ten years’ time? TL: As a fully qualified electrician. rt SPARKS: If you were stuck on a dese it island with one celebrity, who would be and why? a TL: Michelle Keegan because she’s 10!

my own company. SPARKS: If you were stuck on a desert island with one celebrity, who would it be and why? TS: Heather Trott because I love her hair.

CONNOR HYLAND NORTHERN REGIONAL COLLEGE (NI) SPARKS: How does it feel to be a finalist in a major competition? CH: It’s been a great experience as a first year apprentice to compete against other people from the UK. It’s been a tough challenge but I have enjoyed it and feel like I will benefit from it. SPARKS: What has been the best part of the competition overall? CH: For me, the best part was just participating. It’s been great and I would love to be able to do it again. It felt good to be the first competitor from Northern Ireland and I enjoyed representing the NRC and Dowds Group. SPARKS: What’s been the most challenging part of the experience? CH: The plastic conduit. It was tricky to get the bubble sets and off-sets in the conduit as it’s the first time I’ve worked with it properly. SPARKS: Where do you see yourself in ten years’ time? CH: The aim is to become a contracts manager or to have started my own company. SPARKS: If you were stuck on a desert island with one celebrity, who would it be and why? CH: Gino D’Acampo because then I would always have something to eat and since he won ‘I’m A Celebrity Get Me Out Of Here’ I think I’d survive okay.

REECE BRENNAN GATESHEAD COLLEG E

SPARKS: How does it feel to be a finalist in a major competition ? RB: I feel proud to have had the chance to represent not only my company and college but the North East, too. To make it this far is a massive achievement for myself. SPARKS: What has been the bes t part of the competition overall? RB: The whole competition in general has been an excellent experience and sharing it with my fellow competitors has also been good. I love the ven ue and what the 3M building consists of, in terms of science and innovation idea s. I’ve loved it all! The hosts and involved have been lovely – they all of the staff deserve credit, too. SPARKS: What’s been the mos t challenging part of the experie nce? RB: The most challenging part has been the tolerances and dim ensions that had to be met in given, but this task is another the time limit excellent aspect of the competi tion as I really do love a challen ge. SPARKS: Where do you see you rself in ten years’ time? RB: In 10 years’ time I hope to be working with the same com pany in a higher role, earning lots different kinds of work, maybe of money doing even be in partnership with my gaffer. SPARKS: If you were stuck on a desert island with one celebrity , who would it be and why? RB: Jim Carey because he is an absolute barrel of laughs and with out a shadow of a doubt my favo Him, or Beyoncé. urite actor.

 FOR ALL THE LATEST COMPETITION NEWS VISIT SPARKS-MAGAZINE.CO.UK

SPARKS MAGAZINE | SUMMER ISSUE 2017 | UK COMPETITION

Here are some of the things we learnt this year at the SPARKS UK Electrical Apprentice of the Year Competition. Think you could be a competitor next year? Then here’s some advice we collected from our competition judges that you should keep in mind for when you’re about to get in your bay and down to work!

Stay hydrated throughout the competition by drinking plenty of water

Remember that when in doubt you can ask the judges – they are happy to advise and assist where possible

Work safely at all times (wear safety goggles, take care with power tools, etc.)

Draw a datum line and measure off it

Try to get a good night’s sleep prior to the competition

Spend some time planning the task you have been given

Practice your skills on a timed assessment before the competition

Make sure you eat breakfast!

Don’t panic if you make a mistake

Respect your fellow competitors

Don’t forget to measure twice, cut once

Take pride in your work – would you install it in your own property that way?

Make sure you have all the correct tools with you

Check the tape measure, because some tape measures can have an unforgiving amount of play at the end

Always check your connections and make sure that there is no copper visible when viewing the component at 90°

Don’t forget that additional materials and wastage will cost you points

Don’t judge yourself against another competitor’s progress – focus on pacing yourself because everyone works at different speeds

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SPARKS MAGAZINE | SUMMER ISSUE 2017 | FEATURE

BAHCO’S NEW ‘SLIM BLADE’ SCREWDRIVER SOLUTION Bahco designers have solved an old problem which electricians have wrestled with for years: how to reach sunken screws and spring elements in especially confined spaces such as consumer units, safely and easily. Not only is the blade of the new ‘Slim’ 1000V insulated screwdriver 30% narrower than others but its ergonomic handle is slimmer too.

Specifications With many 1000V screwdrivers, the insulation often obstructs and prevents access to low-lying fasteners. Bahco’s ‘extra slim’ solution reduces the blade diameter, using integrated protective insulation. The new screwdriver also enables a higher transfer of force with less effort, while its ergonomic features protect even the toughest hands from the risk of muscle strain or injury.

Safety has always been a top priority for Bahco. All the brand’s insulated screwdrivers are water bath tested at 10,000V to ensure safe working at 1000V, fully meeting the IEC 60900 Standard.

The quality of the ‘Slim’ screwdriver’s blade exceeds current standards relating to hardness by 130% and in relation to torque strength by 200%.

Quality materials Several materials, each with individual properties, are used to make the ergonomic handle. A resistant plastic is used for the core, ensuring that the blade is held securely, even under high strain. A softer material is used for the coloured zones, providing high frictional resistance and allowing the transfer of high forces, resulting in less screw driving effort being required.

Red sections of the handle, with their hard surfaces, prevent the user’s hand sticking to the handle, making it possible to reposition the hand quickly and easily.

Screw head symbols and tip size identification markings make it easier for electricians to find the screwdriver they need for each task.

Stringent testing Plastics used in the handle meet the most stringent test requirements for low temperature impact strength, at minus 40 degrees C.

 Visit bahco.com to see the full Bahco range of electricians’ insulated screwdrivers, side cutting pliers and other tools designed for professional use.

FEATURE | SUMMER ISSUE 2017 | SPARKS MAGAZINE

A GUIDE TO SURGE PROTECTION DEVICES Electrical systems can be vulnerable to transient overvoltages and have the potential to cause harm. Jason Hallam, technical manager at CPN-Cudis, explains how electricians can protect against the associated risks. What are they? A lightning bolt can contain up to one billion volts and up to 200,000 amperes of current. These potentially harmful voltages can be induced into buildings from a direct strike or the secondary effects of lightning. The greater the overvoltage, the bigger the risk of disruption, degradation and damage to the equipment connected to the electrical system. To protect equipment it’s necessary to select a Surge Protection Device (SPD) that can deal with these effects. A Type 1 SPD deals with a direct strike, Type 2 and Type 3 deal with the locally generated surges and a combination of these can provide full protection.

Fitting a SPD is straightforward but it’s important to allow for a spare way in the distribution board, either three-phase or single-phase, and to fit it at the origin.

MCBs kept as short as possible in order for the SPD to operate at its best performing clamping voltage.

Product range CPN-Cudis has a wide range of surge protection devices. The T1SP (Class 1 & 2) and the DSP series (Class 2) are available in single and three-phase configurations. The DSP provides double the protection of normal ‘plug-in’ surge arrestors, allowing for advance warning when the device needs replacing. For industrial and commercial applications requiring Class 2 protection levels, we suggest the SPM series of Type 2 arrestors. The units feature a pluggable surge protection module that allows for replacement without disconnecting cabling.

The Black Box is a Type 3, Class 3 surge arrestor that provides 10 metres of protection either side of the device. Its small size means that it can be mounted in confined spaces, making it perfectly suited to lighting, fire alarm panels, cameras and CCTV. When deciding whether surge protection is required, consider this question - does the building contain a lightning protection system? If the answer is yes, then it’s recommended that one is provided to protect against surges.

Siting an SPD The supply feeding the SPD is usually via a circuit breaker. Isolating of the SPD is recommended when carrying out loop impedance and insulation resistance testing. Those ﬁtted at the origin need to be on a non-earth leakage protected circuit. The SPD should be mounted as close as possible to the incoming terminals of the circuits being protected, with cables between protective

 Visit cudis.co.uk

SPARKS MAGAZINE | SUMMER ISSUE 2017 | FEATURE

THE MFT WITH THE MOST Meggerâ&#x20AC;&#x2122;s new MFT1731 multifunction installation tester is the top model in the newly updated MFT1700 range.

MFT1731 testers are supplied complete with carrying case, test leads, neck strap and a full twelvemonth calibration certificate.

It provides comprehensive functionality for those whose work includes not only standard domestic installations, but also industrial three-phase systems and TT systems for mobile homes.

Specifications The innovative MFT1731 provides all of the facilities needed for fast and efficient testing of low voltage installations in line with the IET Wiring Regulations. Insulation test voltages from 100V to 1,000V are offered, together with automatic and manual RCD test options. RCDs that can be tested include Type A, AC, B, selective and programmable types.

A choice of two-wire and threewire non-trip loop testing as well as high-current loop testing is offered, together with fast continuity checking, frequency measurement and true RMS voltage measurement. Current can be measured using the optional clamp.

When used with appropriate accessories, the MFT1731 also offers a choice of two-pole,

three-pole, stakeless and ART (attached rod technique) methods for measuring earth electrode resistance. And for work on threephase systems, this versatile instrument supports testing of three-phase RCDs even when no neutral connection is available; phase sequence detection; phase-to-phase loop testing at 415V; and determination of prospective short-circuit current (PSCC) up to 20 kA.

Efficiency An important aid to efficiency is the large capacity internal storage for test results, complemented by wireless downloading to Bluetooth-enabled laptops. It has long-life batteries that can be recharged rapidly without removing them from the instrument. A mains-operated battery charger is supplied as standard, with a charger for use from vehicle supplies available as an optional extra.

Safety features Like all Megger instruments, the new MFT1731 has been designed with safety firmly in mind. It has a CAT IV 300V rating in line with IEC 61010, and integral safety features that include protection against accidental connection to live circuits up to 600V, even when a dead-circuit test has been selected and locked on.

The new MFT1731 multifunction installation tester has IP54 rated protection against the ingress of dust and water, making it extremely robust and reliable.

ď&#x201A;Š Visit uk.megger.com

Get ahead in your electrical course The IET has the tools you need to succeed. Find everything you need throughout your course on the IET’s online Student’s Hub, including our: Student’s Guide to the IET Wiring Regulations – a handy companion to BS 7671 that gives you confidence working with the Regulations. Dedicated videos on various aspects of BS 7671 and much more, breaking down what you need to know into bite-size pieces. Job Profile Bank – find out about the variety of exciting careers available in the electrical industry.

Find all of these at www.theiet.org/students-hub1 The Institution of Engineering & Technology is registered as a Charity in England and Wales (No. 211014) and Scotland (No. SC038698).

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SPARKS MAGAZINE | SUMMER ISSUE 2017 | FEATURE

“SAFETY FIRST” WITH TESTO’S ELECTRICAL INSTRUMENTS

Every electrical engineer learns the safety procedures of working on electrical systems, but how many of them consider the safety features of their instruments? How many regularly check the integrity of their instruments? To protect the engineer, safety must be built into the test equipment to minimise those electrical measurement risks.

an integrated function test, which ensures that the instrument is in perfect condition prior to every test. Even if the batteries are empty, the product still indicates voltage presence, which highlights another safety feature of the complete Testo range.

Before working on a system, it is a crucial step to prove the system is dead, using a Voltage Tester which conforms to BS EN 61243.

Sometimes, working on live systems is unavoidable during fault-finding and commissioning. Measurements on live circuits with multimeters and clamp meters place even more emphasis on instrument safety features. GS38 Health & Safety guidance for electrical equipment highlights that one cause of accident that may lead to electric shocks is setting multimeters to the wrong function (e.g. set on voltage range when measuring current). The Testo 760 Multimeter range makes incorrect settings impossible, since the relevant parameter is detected automatically via the assignment of the measuring sockets. This prevents electric shocks and protects the meter’s fuse from blowing.

Dealing with live systems

Testo 750 Voltage Tester There are many suitable instruments on the market, including the Testo 750 Voltage Tester range which incorporates added safety features. It gives the clearest indication of dangerous voltages using patented all-round LED display together with vibration for high voltages. It also has

Another safety feature of Testo’s new product range can be found in the design of the Testo 770 clamp meter range. The unique hook design enables the user to isolate cables in tight switching cabinets without having to handle any cables.

Integrity and functionality Engineers should regularly check instrument integrity and functionality, because even the most robust products and probes can get damaged on site. It is important to confirm the instruments are reading accurately, either against a known source or, even better, by using an accredited calibration service. Through all those features as well as the offer of calibration service for the instruments, Testo intends to make electrical measurements safer and easier for users. Because, when talking about electrical measurements, it is always safety first for Testo.  Visit testo.co.uk

FEATURE | SUMMER ISSUE 2017 | SPARKS MAGAZINE

CLICK SMART:

SCOLMORE'S 'BACK TO BASICS' SMART SOLUTIONS Scolmore’s range of Click Smart intelligent wiring accessories aims to strip home automation right back to basics to offer a smart solution that has accessibility and simplicity at its core. The ‘Click Smart’ range provides a system that makes it easy, quick and relatively cheap to adapt and update a home. This is all with the aim to provide extra security, comfort and control and to save energy for homeowners and other occupants. The Smart Switches within the range make it easier than ever for installers to provide an upgrade to an existing wiring installation with minimal disruption.

HERE ARE THREE SCENARIOS WHERE SCOLMORE’S SMART SWITCHES PROVIDE A SIMPLE SOLUTION:

Add an additional switch to an existing light without the need for cabling. This is an ideal solution for lighting the way to the bathroom in the middle of the night. Fit a Click Smart switching module behind the light fitting you wish to activate in the bathroom and then add the switch controller to a convenient place in the bedroom and you can now easily turn the bathroom light on from your bedside.

Solve the problem of continuous flickering when you switch on one of your lights with a rotary dimmer (wired). Replace the wired rotary dimmer with the retractive switch and add the multi-functional dimming receiver to the light fitting, to instantly stop any flickering that may have occurred.

Introduce two-way dimming control from separate locations (wired). By using a Click Smart multi-functional dimming receiver and two retractive switches, you will be able to dim from two locations - for example at the top and bottom of the stairs.

Full range The Click Smart Switches are available in five switch types and in multiple finishes and styles from across the Click Wiring Accessory ranges to offer maximum choice. The plate styles available are from Scolmore’s popular wiring accessory ranges including Polar, Mode, Essentials, Deco, Define and Definity. Deco Define and Definity switches have a choice of product finishes - Antique Brass, Polished Brass, Satin Brass, Polished Chrome, Satin Chrome, Black Nickel, Pearl Nickel and Stainless Steel.  Full details and videos of the Click Smart range can be seen at click-smart.com

SPARKS MAGAZINE | SUMMER ISSUE 2017 | FEATURE

SMART SENSE As electricians of the future, having an understanding of all things ‘smart’ is crucial. But, when it comes to heating controls, smart doesn’t necessarily mean connected; it’s more about the automated features that help get the most out of the boiler. So, what makes a thermostat ‘smart’?

Accessibility What was once a simple wired thermostat that featured on most hallway walls is now a mobile control that efficiently controls what is the most complex system in any property – the central heating.

Today, smart thermostats allow homeowners to access their heating via the internet from anywhere at any time, meaning they can turn their heating on and off or up and down using a smart phone or tablet. This enables more frequent interactions with heating controls and the power to control their heating remotely.

TPI Room thermostats featuring time proportional integral (TPI) technology use a sophisticated algorithm to provide close control of room temperature to ensure the boiler is fired just long enough to achieve the desired temperature, and not a second longer.

Using such a thermostat, together with thermostatic radiator valves (TRVs), was shown to provide a 53% saving in energy costs; that’s a further 13% reduction compared to a conventional room thermostat.1

Location-based temperature control, or ‘Geo-fencing’ The latest technology, Geo-fencing, is a feature in software that uses the global positioning system (GPS) or radio frequency identification (RFID) to define geographical locations. Translated into thermostat-speak, this means that smart controls can now provide

...smart thermostats allow homeowners to access their heating via the internet from anywhere at any time...

remote control of the boiler by turning the heating on or off dependant on the location of the homeowner.

OpenTherm Finally, OpenTherm technology is a communication method between an OpenTherm capable boiler and thermostat. It allows the amount of heat provided by the boiler to be altered to match the varying demand signal, by reducing the flow temperature to a minimum possible level as it leaves the boiler. This modulation improves boiler efficiency by running at lower flow temperatures for longer periods of time. Clever isn’t it? But what’s even more clever, is that these ‘layers’ are all concealed in a sophisticated back-end, while the control itself remains easy to use for any age of customer with a smart phone. It’s the electrician’s job to know about them…

 For more information, please visit honeywelluk.com http://www.beama.org.uk/news/high-efficiency room-thermostats.html#sthash.Jcw2ldqk.dpuf 1

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SPARKS MAGAZINE | SUMMER ISSUE 2017 | SPONSORED FEATURE

S R E I L P : X E P I N K N O Y L E R N A C U YO Your pliers are a crucial part of your tool bag and should be chosen on quality, powerful performance and user comfort, explains Alex Garami of KNIPEX. As an apprentice you are now learning the essential skills of your trade. It’s an exciting time and as you move from working in the classroom to working on site, the tools and equipment you choose will become even more important to you.

Choosing the right tools That’s especially true of your pliers, so getting the choice right will help ensure you work comfortably and safely with tools you can rely on. With professional users like you in mind we seek to find innovative solutions that enable electricians to get

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The KNIPEX range of VDE insulated tools offers everything you will need when working on electrical installations, including combination, crimping, needlenose, and dismantling pliers as well as a comprehensive choice of screwdrivers, knives and cutters.

High standard KNIPEX production and VDE test standards offer the greatest possible protection when working with a voltage up to 1000V AC and 1500V DC. The production methods

of KNIPEX and the equipment used for testing insulated tools are frequently examined, certified and monitored by the Association of German Electricians (VDE). Each design of KNIPEX insulated pliers is authorised by the independent VDE Institute concerning safety features before a type approval is granted.

Quality products Professionals know all KNIPEX tools are made from quality materials according to stipulated national and international standards, taking into account all the knowledge and experience that comes from 50 years of manufacturing insulated tools.  For more details on the KNIPEX range of VDE insulated tools visit knipex.com

SPECIAL FEATURE | SUMMER ISSUE 2017 | SPARKS MAGAZINE

CEF LIVE 2017... SET TO OFFER UNIQUE INSIGHT FOR YOUNG ELECTRICAL PROFESSIONALS CEF Live is returning to Birmingham’s NEC on the 8th and 9th June and this year’s show is placing a special focus on young professionals and students in the electrical sector. Hosted by CEF, the UK’s expert supplier of electrical products and services, the show is completely free to attend and offers apprentices valuable knowledge and training on the latest industry issues and technology.

Apprentice attendees will also be able to get their hands on a free copy of the IET’s Student’s Guide to the Wiring Regulations. A host of other sessions will give visitors a heads-up on industry changes and existing requirements, including the Knowledge seminar. Alongside the speakers and educational activities, over 45 top electrical brands will be at the show, with many offering exclusive, on-the-day deals for apprentices at unbeatable prices.

Exhibitors Those signed up so far include DeWALT, Milwaukee, Klein Tools, Schneider Electric, Eaton, 3M, Legrand and Aico, alongside technology innovators Nest and Hive. Young professionals will be able to take part in live demonstrations and get to grips with the latest products.

What's on? Day two of the show (Friday 9th June) in particular will feature a wide range of activities designed specifically for those new to the trade. Informative workshops and fun skills challenges will be available, giving the next generation of electricians unique insight on how to get ahead in today’s fast-paced industry. Seminars from the NICEIC and the IET will shed light on the upcoming 18th Edition of the IET Wiring Regulations and how these new laws could affect electrical projects.

Chris Ashworth, General Manager, CEF said: “Supporting the next generation of electricians is a crucial aspect of CEF’s culture. The electrical industry is extremely fast-paced, and we want to help apprentices get practical experience with the latest equipment and familiarise themselves with ever-changing legislation and best working practice. “With this in mind, CEF LIVE is set to be the perfect opportunity for young people working in the sector to find out more about new regulations and pick up some of the latest products and tools at unbeatable prices.”

 For details about CEF LIVE and to register to attend, visit

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SPARKS MAGAZINE | SUMMER ISSUE 2017 | SPONSORED FEATURE

SNICKERS WORKTROUSERS ARE NOW GETTING EVEN ‘SMARTER’ Snickers WorkTrousers are getting even ‘smarter’ thanks to the integration of technology. Wearable Technology is already woven into our daily lives through smartphones, fitness devices, sports clothing and accessories to help monitor and improve performance. A recent study carried out in Scandinavia* showed that more than 50% of their professional craftsmen are cutting corners at work and that they don't use the available health and safety equipment as they should. David Clark, managing director of the Hultafors Group UK said: “Our experience is that craftsmen usually are so focused on getting the job done that personal protection tends to be overlooked.” But repeated ‘corner cutting’ over the years definitely creates a long-term health problem, an issue that Snickers Workwear has been continually addressing with its patented KneeGuard System. Clark said: “The study shows that 6 out of 10 craftsmen are suffering from pain in their knees. So we see that there is definitely room for improving their wellbeing beyond just knee protection - and our ‘Smart Workwear’ is one way.”

‘Tracker 1’ is Snickers’ first prototype of wearable technology: a chip has been fitted to a pair of WorkTrousers, enabling the user to monitor work place noise levels, heat conditions and knee impact.

Market-leading technology and innovation have long been hallmarks of Snickers Workwear. “We are known for our KneeGuard System, 37.5 Fabric Technology and technical functionality, but the integration of ‘smart’ wearable technology into our clothing shows the extent to which we are looking at working clothes and wellbeing on site in a completely new way.”

 Clark said: “Market-leading technology and innovation have long been hallmarks of Snickers Workwear.

Getting more information about Snickers Workwear is easy. You can call the Helpline on 01484 854788; check out snickersworkwear.co.uk and download a digital catalogue; or you can email info@snickersworkwear.co.uk

* The recent study was carried out carried out among professional craftsmen in Sweden by Kantar Sifo during December 2016 and January 2017.

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SPARKS MAGAZINE | SUMMER ISSUE 2017 | FEATURE

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



WHERE

Petroc’s Mid Devon campus is based right in the heart of the community it is serving. Located in Tiverton, it is close to all of the town’s amenities and it is easily accessible from the M5. The new Future Technologies building provides stateof-the-art facilities specifically built to create the best learning environment for our construction apprentices. The building is just over two years old and packed with the technologies that our apprentices will be working with today and in the future. The college prides itself in staying ahead of the game and introducing students to new equipment and processes as they enter into the trade.

FEATURE | SUMMER ISSUE 2017 | SPARKS MAGAZINE



SPARKS EVENT

Petroc was given the fantastic opportunity to host one of the regional heats of the SPARKS UK Electrical Apprentice of the Year Competition this year, and was able to show it its facilities. The college was honoured to be chosen in this great event celebrating the best apprentices in the region. Petroc Mid Devon has had South West Regional winners in 2011 and 2015, and a UK winner in 2015.



STAFF

The teaching staff are all fully qualified, timeserved electricians with a wealth of experience and knowledge. They strive to give the students the best experience and foundation knowledge to take the trade into the future. Staff are dedicated and passionate about the subject they are teaching. Petroc works with a large number of employers, from sole traders to multi-national companies and treat them all on an individual basis. That is why they return again and again.

 Visit petroc.ac.uk

THE FUTURE Nobody can predict where the trade will be in 20 years’ time, with the ever-changing renewable market and the ever-depleting fossil fuels, but it is important that apprentices are trained to adapt to the changing market. It is important that students are not just installers but that they have the skills to commission and maintain the equipment they have chosen. Petroc aims to give students all of these skills so they have the opportunity to be the highly-skilled workforce of the future.

SPARKS MAGAZINE | SUMMER ISSUE 2017 | REGULATIONS

INTERVIEW WITH STEVEN DEVINE AUTHOR OF THE STUDENT’S GUIDE TO THE IET WIRING REGULATIONS You may have watched Steven’s technical videos or seen him at one of his Student Guide Roadshows. We interview Steven about his background and find out why he’s so passionate about helping electrotechnical students succeed in their studies.

SPARKS: What’s your background? SD: I began working part time with an electrician at weekends. At first I was carrying out fairly simple tasks: lifting floorboards, chasing walls and, of course, making the tea. I left school to work full time, enrolled on an apprenticeship and began working in commercial, industrial and off-shore environments. After a while I decided to use my knowledge of the industry to teach electrical students, helping them gain qualifications and successful careers in the industry. SPARKS: Do you miss lecturing? SD: I miss the rewards that lecturing can offer. I don’t think there is a feeling quite like when you have a class full of students pass exams, complete qualifications and move into the industry. SPARKS: What was the toughest subject to teach? SD: Good question, it’s a close contest between Health & Safety and Regulations. It is hard to make those subjects exciting.

SPARKS: What made you work for the IET? SD: I wanted to get involved with the development of BS 7671 and to develop resources based on my experience as a lecturer, to make them available to students everywhere.

SPARKS: What’s your favourite part of the job? SD: It’s definitely getting out and about and meeting people who are involved with teaching. I especially enjoy meeting students when we run the Student’s Guide Roadshows. SPARKS: You’re building up the student work - authoring the Student’s Guide to the IET Wiring Regulations, running the Student’s Guide Roadshows and presenting the student videos, for example. What drives your passion for this part of the industry? SD: It’s very disappointing when a student gives up on a course because they don’t have the support that they need and don’t understand how rewarding a career in the

electrical industry can be. I think that every student should have the support they need and good career guidance so that they can make the most out of life. SPARKS: Do you still enjoy hands-on electrical work, when you get the opportunity? SD: Absolutely, but maybe not as much when it involves being out in the cold.

SPARKS: What advice would you give those who are training as an electrician? SD: If you have an apprenticeship, great. If not then don’t stop looking. If you are serious about becoming an electrician then the opportunity will surely come along. Just keep applying. Get qualified, get out there and start earning.

 Visit theiet.org

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SPARKS MAGAZINE | SUMMER ISSUE 2017 | SPONSORED FEATURE

SHINING A LIGHT ON TALENT EAL Head of Communications and Public Affairs says skills competitions like the SPARKS UK Electrical Apprentice of the Year and WorldSkills UK competitions are a fantastic way to promote careers in electrical engineering. EAL, the specialist awarding organisation for industry, has some of the UK industry’s most talented learners and apprentices. Individuals on our qualifications made up more than half of the engineering, electrical and plumbing competition WorldSkills UK national finalists at the 2016 Skills Show (71 of the 132 competitors, with 32 going on to win medals). Meanwhile almost half of the SPARKS UK Electrical Apprentice of the Year 2017 regional winners were also studying for EAL qualifications.

Skill competitions Skills competitions allow competitors to become more productive and achieve

excellence in their chosen careers, which also benefits their employers. For colleges and training providers, skills competitions help to facilitate collaboration between education and industry and drive up teaching and learning to cutting edge standards.

Research In recent research, 95% of competitors said taking part in WorldSkills UK competitions had improved their technical and employability skills, while 80% said it had increased their confidence, team working, time management and ability to work under pressure. WorldSkills champions will tell you that taking part in competitions and showcasing their talent, expertise and knowledge to other young people is a life changing experience.

Showcasing vocational and technical education as an inspirational career path is good for employers, training providers, colleges, individuals and the wider UK economy. That is why EAL is proud to be playing an important role in supporting skills competitions, including the SPARKS UK Electrical Apprentice of the Year, and encouraging our learners to take part.  For more information about EAL qualifications visit eal.org.uk

 To visit the Skills Show and see WorldSkills UK competitors in action visit worldskillsuk.org

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SPARKS MAGAZINE | SUMMER ISSUE 2017 | EXERCISE

Defining Terms: Earthing and Bonding Covering Outcome 2 of C&G Unit 304 and EAL Unit QELTK3/04a ‘Understand the Principles of Planning and Selection for the Installation of Electro-technical Equipment and Systems in Buildings, Structures and the Environment, (Level 3 NVQ Diploma in Installing Electro-Technical Systems and Equipment 2357-13 / 91 or EAL 1605).

 TASK 1: Define the following terms. i) Earthing:

ii) Equipotential bonding:

iii) Exposed-conductive-part:

iv) Extraneous-conductive-part:

v) Main earthing terminal (MET):

vi) Protective conductor (PE):

 TASK 2: Look at the Key and then add the

correct labels to the following block diagram

ELECTRIC COOKER MOTOR

KEY A: Class I electrical equipment, e.g metal-enclosed washing machine, electric motor, any equipment requiring a circuit-protective-conductor B: Main earthing terminal, (MET) located in or near the Consumers Control Unit C: Extraneous conductive part, e.g. water pipe or gas pipe D: Supply for portable class I equipment E: Consumers means of earthing F: Earthing conductor G: Circuit protective conductor H: Main protective bonding conductor

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

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SPARKS MAGAZINE | SUMMER ISSUE 2017 | EXERCISE

Special Locations Quiz Covering Outcome 7 of C&G Unit 305 and EAL Unit QELTK3/04 (Level 3 NVQ Diploma in Installing Electro-Technical Systems and Equipment 2357-13 / 91 or EAL 1605).

ď&#x201A;Š TRUE OR FALSE: For each statement related to a special location, decide if the answer or statement is true or false. You may

need to refer to your notes, text books or Part 7 of BS 7671: 2008 +A3 2015 'Requirements for Electrical Installations.'

QUESTION 1

The space under the bath tub or shower basin is considered to be zone 1

Except for SELV and BS EN 61558-2-5, socket-outlets are permitted in a room containing a bath

In swimming pools and other basins there is no zone 2 for fountains

In a room containing electric sauna equipment, the equipment must have a degree of protection of at least IPX2

A plug and socket for use on a construction site must have a rated current equal to, or greater than, 16A and comply with the requirements of BS EN 60309-2

In a farm environment, protective conductors must be protected against mechanical damage and corrosion, and shall be selected to avoid electro-technical effects

Film or TV sets are excluded from Section 706 (BS 7671:2008 + A3 2015)

The length of flexible cable used to connect a caravan to a caravan pitch socket-outlet is 22m (+/- 4m)

Electrical equipment installed above a jetty, wharf, pier or pontoon must have a degree of protection of at least IP4X

In a Group 2 medical location, overload current protection shall not be used in either the primary or secondary circuit of the transformer of a medical IT system

The nominal supply voltage of a temporary electrical installation in an exhibition, show or stand shall not exceed 230 / 400V AC or 500V DC

The maximum disconnection time of 0.4 seconds applies to all electrical circuits feeding fixed equipment used in highway power supplies

In an extra-low voltage lighting installation, bare conductors may be used, providing the extra-low voltage does not exceed 25V AC or 60V DC and certain conditions are met

The periodic inspection of a caravan must preferably be not less than once every four years, and annually if the caravan is used frequently

Where an electric vehicle charging point is installed outdoors, the equipment must be selected to a degree of protection of at least IP44

In a fair ground situation, electric dodgems shall only be operated at voltages not exceeding 25V AC or 60V DC

TRUE

Now check your answers.

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

FALSE

PUZZLE CORNER | SUMMER ISSUE 2017 | SPARKS MAGAZINE

TEA BREAK

Try to find the following words that all relate to technical information in the workplace.

TIME

(Answers can be left to right, right to left, up, down or diagonal)

 CUSTOMER

 DATA

 INFORMATION

 SPECIFICATIONS

 SUPERVISOR

 TECHNICAL

 CONTRACTOR

 OPERATIVE  REPORT  SCHEDULE

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SPARKS MAGAZINE | SUMMER ISSUE 2017 | EXERCISE

Inspection, Testing and Commissioning Covering C&G Unit 307 and EAL Unit QELTK3/06 ‘Understand Principles, Practices and Legislation for the Inspection, Testing, Commissioning and Certification of Electro-technical Systems and Equipment in Buildings, Structures and the Environment’ (Level 3 NVQ Diploma in Installing Electro-Technical Systems and Equipment 2357-13 / 91 or EAL 1605).  TASK 1: Complete the following questions regarding electrical test instruments and test sequence. Q1. LIST the instruments which, during an electrical commissioning test on an installation, gave the following readings:

a) 10MΩ

b) 6kA

c) 20mS

Q2. State THREE safety checks to be carried out on an earth fault loop impedance tester and leads prior to conducting a test

on a lighting circuit.

Q3. State the TEST VOLTAGES required to test insulation resistance on circuits operating at:

a) 30V

b) 200V

c) 600V

Q4. With reference to insulation resistance testing, state the tabulated TEST VOLTAGES to be applied and the MINIMUM tabulated

acceptable value of insulation resistance for EACH of the following circuits: a) SELV b) LV circuit up to 500V c) LV circuit over 500V

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EXERCISE | SUMMER ISSUE 2017 | SPARKS MAGAZINE

Q5. List in the correct sequence, the first THREE tests that should be performed during an initial verification on a new domestic installation.

Q6. The test for the continuity of a cpc in a radial circuit feeding one socket-outlet uses a temporary link and a low reading

ohmmeter. State: a) Where the temporary link is connected b) Where the low reading ohmmeter is connected c) What the meter reading actually represents

Q7. List THREE precautions to be taken before conducting an insulation resistance test on an installation.

Q8. When a periodic inspection and test is to be carried out, state:

a) What must be agreed with the customer or client before inspection and tests are made b) Who needs to agree this with the client c) What documentation is to be completed for this work

Q9. State the MAIN REASON for conducting a periodic inspection and testing on an electrical installation.

Q10. State the MAXIMUM re-inspection and test intervals for the following locations: a) Caravan used once every five years

b) Caravan used annually

c) Construction sites

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SPARKS MAGAZINE | SUMMER ISSUE 2017 | EXERCISE

Fault Diagnosis & Rectification Covering Outcome 3 ‘Understand How to Complete the Preparatory Work Prior to Fault Diagnosis and Correction Work’ C&G Unit 308 and EAL Unit QELTK3/07 (NVQ Level 3 Diploma 2357 – 13 or EAL 1605).

Which of the following combinations is the correct sequence of events when carrying out safe isolation?

1) Reprove test instrument 2) Isolate supply and lock off 3) Prove isolation with test instrument 4) Test instrument on known supply

1,3,4,2

4,2,3,1

1,4,3,2

1,2,3,4

The wrong wattage tube was fitted

The tube is old and needs replacing

There is a wiring fault to one of the tube connections

The starter has failed and needs replacing

Following decoration work in the hall and landing of a domestic house, the two-way operated Ans. landing light no longer works correctly. The fault is going to be...

The switch has been removed and not refitted correctly

The light fittings were removed and not reconnected

The hall light was removed and reconnected wrongly

The landing light has failed

When the supply is connected to a capacitorstart, single-phase electric motor, it fails to start and produces a continuous humming sound. The most likely fault is...

A loose neutral connection to the motor

An open-circuit run winding

A blown fuse

An open–circuit start winding

Start winding will have a lower resistance than the run winding

Auxiliary winding will have a lower resistance than the main winding

Start winding will have a higher resistance than the run winding

Run winding will have a higher resistance than the starting capacitor

Ans.

A fluorescent tube flashes on and off repeatedly Ans. and fails to light correctly. The fault is likely to be...

When carrying out continuity checks on the windings of a single-phase, capacitor-start electric motor, which of the following is most likely to be found?

Ans.

A domestic customer reports that an outside PIR security light fails to operate. The lamp has been replaced with no effect. Which one of the following is NOT likely to be the cause?

The protective device for the circuit has operated

The PIR has developed a fault

Both the old and new lamps are broken

There is a broken connection at the security lamp or PIR

Which one of the following senses is usually not required when carrying out fault finding?

Hearing

Seeing

Touching

Tasting

Which one of the following statements is TRUE?

A neutral conductor is connected to the centre pin of an Edison Screw lamp-holder

When viewed from the front, the line output of a BS1363 socket-outlet is on the left

The BS EN 60309-2 plug used on 400V AC supplies is coloured red

A solar photovoltaic array can be connected directly into a domestic consumer unit

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

Ans.

EXERCISE | SUMMER ISSUE 2017 | SPARKS MAGAZINE

A domestic central heating system fails to operate following an Electrical Installation Condition Report being undertaken on the property. What is the most likely cause of this failure?

Ans.

On inspection, it is found the main neutral connection at a distribution board is discoloured Q13 and the insulation has bubbled. The most probable cause of this condition is...

The heating system needs to be overhauled

A loose neutral connection

The electronic control panel has been damaged due to insulation resistance test voltages being applied

Prolonged overcurrent

The power supply has been isolated at the fusedconnection unit for insulation tests to be made

Too many loads connected to the distribution board

There is a closed circuit on the phase conductor

A short-circuit fault on one of the final circuits

Q10

A fluorescent tube glows at each end but fails to start. The cause of this fault is most likely to be...

Ans.

Q14

Which of the following must be issued following the replacement of a damaged final circuit cable?

Failure of the choke

Installation Certificate

The tube has come to the end of its life

Minor Electrical Installation Works Certificate

Incorrect tube has been fitted

Permit-to-Work

Failure of the starter

Electrical Installation Condition Report

A customer reports that hot water is pouring from an overflow pipe when the immersion Q11 heater has been switched on for half an hour. The probable cause of this fault is...

Ans.

Q15

Under-voltage caused by voltage drop in a circuit

The thermostat has failed and is permanently closed

Over-voltage resulting from a lightning strike

Insufficient hot water is being used by the customer

Over-current due to a line â&#x20AC;&#x201C; earth fault

Water pressure has increased in the supply mains

Frequent switching on-off of the equipment

The immersion heater has failed

A customer reports that a dimmer switch fails to dim a new lamp that replaces a broken 60W Q12 lamp. They notice that if the dimmer is operated from full-on, the lamp dims slightly then goes out. What is the most likely reason is?

Ans.

Damage can be caused to electronic components Ans. in a circuit due to which of the following?

Ans.

A three-phase and neutral power supply must be isolated in order to carry out a repair on Q16 an industrial machine. Which of the following procedures must be carried out after permission is given to isolate the supply?

The wiring has become disconnected at the ceiling rose

Locate the machine to be repaired

The dimmer switch has developed a fault

Safe isolation of the supply to the machine

The replacement lamp is a low-energy compact fluorescent type

Safe isolation of the supply to the building

The new lamp is the wrong voltage

Removal of the supply cable to the machine

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Ans.

SPARKS MAGAZINE | SUMMER ISSUE 2017 | EXERCISE

Matching Terms and Meanings Covering Outcome 7 ‘Special Locations;’ ‘Understanding the Practices and Procedures for the Preparation and Installation of Wiring Systems and Electro-technical Equipment in Buildings, Structures and the Environment’ C&G Unit 305 and EAL Unit QELTK3/04 (NVQ Level 3 Diploma 2357 – 13 or EAL 1605).

The following terms can be found in BS 7671:2008 +A3 2015. However, the exact wording of the definition may not be as found in the Standard. Try to identify the correct definition for the terms stated below.

No.

TERM

DEFINITION

Distributor

A location intended for the diagnosis, treatment monitoring and care of patients

Caravan

Assembly of photovoltaic arrays

Street furniture

An electrical system for electrical equipment provided to protect or warn persons in the event of a hazard, or essential to their evacuation from a location

PV generator

Person/s responsible for the distribution of electrical energy to the customer

Safety service

An operation intended to remove danger, as quickly as possible

Emergency switching

Area where one or more stands, amusement devices or booths are erected for leisure use

Fair ground

Fixed equipment located on a highway

Medical location

A trailer leisure accommodation vehicle

CHECK

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EXERCISE | SUMMER ISSUE 2017 | SPARKS MAGAZINE

Electrical Principles Covering C&G Unit 309 and EAL Unit QELTK3/08 ‘Understand the Electrical Principles Associated with the Design, Building, Installation and Maintenance of Electrical Equipment and Systems’ (Level 3 NVQ Diploma in Installing ElectroTechnical Systems and Equipment 2357-13 / 91 or EAL 1605).

Try these multiple – choice questions.

Which one of the following is a typical Distribution voltage?

230V

400V

11kV

400kV

When connected to a 50Hz supply, the inductive reactance of an inductor rated at 0.35H will be?

200Ω

172.8Ω

109.97Ω

86.4Ω

Three fixed resistors of 60Ω each are connected in series with each other. The combined resistance is...

180Ω

90Ω

60Ω

20Ω

The procedure to reverse the direction of a single-phase capacitor start motor is to...

Reverse connect line and neutral to the motor

Reverse the connection of the start and run winding

Reverse the connection of the run winding only

Reverse the connection of the capacitor

A four pole AC induction motor is connected to a three-phase supply of 60Hz. The synchronous speed of the stator magnetic flux is...

Ans.

Electrical power is measured using a...

kWh meter

Watt meter

Ammeter

Voltmeter

The efficiency of a motor that has an output of 50kW and an input of 60kW will be?

80.55%

83.33%

90.50%

98.87%

A light source of 7000cd is positioned 5m above a horizontal surface. The illumination on the surface immediately beneath the source is...

280 lux

280 lumen

1200 lux

1200 lumen

In lighting, the abbreviation SOX is which type of lamp?

High pressure metal halide

Low pressure sodium

High pressure mercury fluorescent

Low pressure mercury fluorescent

Q10 The symbol shows a...

750rpm

Thyristor

1000rpm

Diac

1800rpm

Triac

3000rpm

Diode

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

Ans.

SPARKS MAGAZINE | SUMMER ISSUE 2017 | EXERCISE

Electrical Measuring Instruments Covering Outcome 7 C&G Unit 309 and EAL Unit QELTK3/08 â&#x20AC;&#x2DC;Understand how Different Electrical Properties can affect Electrical Circuits, Systems and Equipmentâ&#x20AC;&#x2122;. (Level 3 NVQ Diploma in Installing Electro-Technical Systems and Equipment 2357-13 / 91 or EAL 1605). Understanding the type and use of various electrical test instruments is important because incorrect connection can seriously damage the instrument, the circuit in which it is connected and could pose a danger to the operator.

Q1. The following 3 questions relate to the measuring or determination of power in single-phase a.c. circuits. Identify the correct

name for each of the numbered components shown in the single-phase circuit diagram below:

3 Inductor

Resistor

ANSWER: 1 =

Q2. State the reason for measuring the electrical quantities at the points shown in (1), (2) and (3), in the circuit shown above.

Q3. Calculate the power rating (W) of an inductive load if the power factor is 0.85, the current is 50A and the voltage is 230V.

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EXERCISE | SUMMER ISSUE 2017 | SPARKS MAGAZINE

Q4. Electrical measuring instruments with the symbol:

Q5. Electrical measuring instruments with the symbol:

shown on the scale means that the instrument has a...

shown on the scale means that the instrument is a...

Q6. The most practical method of measuring current in a â&#x20AC;&#x2DC;liveâ&#x20AC;&#x2122; ac circuit cable is to use which type of instrument?

Q7. The instrument used in question 6 operates on which basic magnetic principle?

Q8. The light level produced by a newly installed lighting system in a commercial location must be measured.

(a) What type of instrument is to be used for this measurement? (b) What is the unit of light measurement?

Q9. Analogue instruments have a number of specific features, name THREE typical features.

Q10. What action needs to be taken to ensure electrical test instruments remain accurate throughout their lifetime?

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SPARKS MAGAZINE | SUMMER ISSUE 2017 | 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. Hereâ&#x20AC;&#x2122;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.

@kva_northwest rth on 3C being hero. Notice the ea Another have-a-go ess! ase stop this madn used as a live! Ple Expert comment... on issue but ntification is a comm The lack of cable ide ble is used in the ed if the correct ca ts can easily be avoid specific requiremen lation 514.4.2 has . tor uc first instance. Regu nd co e colour protectiv for the use of the bi-

@Kelly_Electrics So dangerous. Tails extend ed with a 32A termination #roguetrader. Please always hire a competent electrician. Expert comment... Electrical installations sho uld be designed and installed to provide pro tection against electric shock as per cha pter 41 of BS 7671 and to provide protection against thermal effects as per chapter 42. Neithe r of these concepts seem to have been consid ered here. @AHBHServices From all of our weekend emergency call outs, this one was the DISASTROUS one. Lucky no one got hurt. ALWAYS get a qualified electrician! Expert comment... The importance of adequate and suitable electrical connections cannot be overstated. These requirements are all covered in Regulation group 526. Another example of poor workmanship and no doubt not following manufacturersâ&#x20AC;&#x2122; guidance as per 134.1.1.

HALL OF SHAME | SUMMER ISSUE 2017 | SPARKS MAGAZINE

IN ASSOCIATION WITH

@EastElectrical This house is beautiful in terms of decoration. Electrically it's a disaster waiting to happen. #testb4ubuy Expert comment... Here it appears as if the concept of suitable cable supports as per Regulation 522.8.4 has been ignored, let alone the requirements to maintain protection against electric shock as per Regulation 410.3.2.

If youâ&#x20AC;&#x2122;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

SPARKS MAGAZINE | SUMMER ISSUE 2017 | 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…

The JIB has launched an app to assist apprentices during their training. Available on iPhone and Android, the app features bite-sized chunks of information on areas such as ECS cards, the JIB handbook, safe isolation procedures and pay rates for JIB apprentices. The app also provides links to additional benefits and services such as the JIB Handtool Replacement Scheme, discounted driving lessons and counselling services. The app has been specifically designed for JIB-registered apprentices, but much of the information is useful to all electrotechnical apprentices. Visit www.jib.org.uk/new-apprentice

Easy Safety Cert’s electronic system is the quick and easy way to create, send and store PAT certificates on the go. The system leads the way in saving electricians both time and money when it comes to portable appliance testing. You can create and email professional electronic certificates directly to clients, save all your PAT certs, job and client details in one place, receive yearly reminders to repeat checks and a job management system for managing jobs on the go. The free iPhone and iPad app is available to download from the App Store – just search ESC PAT Cert.

The innovative new mobile app from the Scolmore Group is packed full of features and calculators to make life easier for electricians and apprentices on the job. The free-to-download app features a complete range of searchable products (9,000 in total), product and tutorial videos and catalogue downloads. What sets the Scolmore app apart is the FREE ‘Tool Kit’ feature, which includes a selection of valuable calculators, designed to make it quick and easy for electricians to make essential calculations on the job. Included are Z’s values; Cable Selection and Voltage Drop; KVA Convertor; Resistance Calculator; Voltage Calculator; Current Calculator and Power Calculator.

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

PRODUCTS AND SERVICES | SUMMER ISSUE 2017 | SPARKS MAGAZINE

SOLIDGEAR AND TOEGUARD’S NEW SAFETY FOOTWEAR CATALOGUE

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 around 12,000 electrical students throughout the UK.

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

SCOLMORE LAUNCHES NEW WIRING ACCESSORIES RANGE Totalling more than 800 products, Deco Plus is a comprehensive range of premium decorative metal wiring accessories that builds on the huge success of the classic Deco range. It introduces smooth, contemporary curves that will have wideranging appeal with contractors, specifiers and end users alike. The new, high-specification Deco Plus collection comprises a range of products that includes Switches, Power Socket Outlets, Fused Connection Units and Control Switches and Media cabling solutions. All products are offered in seven distinctive finishes and are available with black or white inserts.  scolmore.com

The 2017 Product and Price Catalogue contains the complete range of safety shoes, boots and trainers from Hultafors UK’s own SolidGear and ToeGuard brands. With four very different types of products – TUFF, ATHLETIC, TREKKING and OCCUPATIONAL – there’s a product to suit almost every footwear need on site. There’s also loads of information on important product features, such as comfort and safety, fabrics and linings, water repellency, etc., to get you working and walking safely, effectively and in comfort wherever you are on site.  solidgearfootwear.com

NEW ADDITIONS TO ESP’S EMERGENCY LIGHTING RANGE Latest additions to the Duceri Emergency Lighting range include LED Emergency Maintained Hanging Exit Signs and LED Emergency NonMaintained Open Lens and Corridor Lens Down Lighters. The new 2W LED Emergency Exit Signs (Up, Down, Left and Right) feature 16 SMD 2835 LEDs and offer a 60 lumen mains output and 44 lumen emergency output, with a viewing distance of 24m. A new range of high-power, ceiling-mounted LED down lighters have also been added, including a 3W and 5W LED Emergency NonMaintained Corridor Lens Down Lighter and a 5W LED Emergency Non-Maintained Open Lens Down Lighter.  espuk.com

NEW HULTAFORS TOOLS 2017 PRODUCT CATALOGUE

SUN, SCRUFFS & SHORTS

The new Hultafors Tools catalogue is free and packed with details of innovative hand tools and accessories for working effectively, wherever you are on site. Hultafors Tools has over 100 years experience in knowing what it takes to get a job done efficiently, effectively and safely. Hultafors’ ingrained quality and innovation is found in every hand tool. Ergonomically crafted with built-in Fisco technology, there’s a host of tools for measuring and marking, chopping, striking and levelling. You can also check out the new range of spirit levels, craftman’s knives and chisels.

Scruffs Trade Shorts are designed with warmer working days in mind. Available in three colours: black, ink blue and slate, these lightweight and durable work shorts offer function, comfort and style. Made from a lighter weight summer fabric with tough reinforcements in stress areas, these hard wearing trade shorts are made for on-site working. Multiple pockets including a cargo pocket, phone pocket and tuck away holster pockets keep tools and valuables to hand.

 hultafors.co.uk

Scruffs. For the masters at work, by the masters of workwear.  To find out more email sales@birchwoodpricetools.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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