SPARKS Autumn Issue 2016

AUTUMN 2016

THE ONLY MAGAZINE FOR APPRENTICE ELECTRICIANS

INSIDE...

THROUGH THE KEYHOLE KLEIN TOOLS COMPETITION SPECIAL FEATURE: MERCEDES-BENZ VANS LEVEL 2 & 3 EXERCISES

WIN!

COULD YOU BE THE 2017 SPARKS UK ELECTRICAL APPRENTICE OF THE YEAR?

EDITOR’S NOTE | AUTUMN ISSUE 2016 | SPARKS MAGAZINE

01

AUTUMN 2016

THE ONLY MAGAZINE FOR APPRENTICE ELECTRICIANS

INSIDE...

THROUGH THE KEYHOLE KLEIN TOOLS COMPETITION SPECIAL FEATURE: MERCEDES-BENZ VANS LEVEL 2 & 3 EXERCISES

WIN!

COULD YOU BE THE 2017 SPARKS UK ELECTRICAL APPRENTICE OF THE YEAR?

EDITOR: BECKY MARTIN editor@sng-publishing.co.uk TECHNICAL CONTRIBUTORS: Michael Davies & Graham Valentine ADVERTISING: SUE CATT / PATRICK BLORE sue.catt@sng-publishing.co.uk patrick.blore@sng-publishing.co.uk GRAPHIC DESIGN: STUDIO 74 www.studio-74.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.

For some of you, this will be the first issue of SPARKS Magazine you’ve ever seen so let me introduce us to you! We are the only magazine for apprentice electricians and hopefully you will find this a usual source of information to discover new products, industry news and tips and tricks of the trade.

We are proud to have so many major industry names working with us, mostly because it means that the people we make this magazine for (here’s looking at you!) can turn these pages and know that they are looking at a number one resource for all things electrical.

And if you are new to SPARKS Magazine (or even if you’re not, Level 3s!) then you should definitely consider entering our major annual competition which is open for entries now: the SPARKS UK Electrical Apprentice of the Year Competition. The 2017 competition is guaranteed to be bigger and better because we are very excited to announce that we are now going to Northern Ireland for the first time. Head to page 10 to find out how you can apply.

We also bring you practice exercises so that you can test yourself away from your textbook, so make sure you check your answers on our website at www. sparks-magazine.co.uk. And we love making new friends, so check out our Facebook and Twitter pages too!

Becky Martin EDITOR

© SNG Publishing Ltd, 2016

SPARKS-MAGAZINE.CO.UK

/SPARKSMAG

/SPARKSMAGAZINE

02 AUTUMN ISSUE 2016 | CONTENTS

SYLLABUS Cable Selection Cable Selection 2 Health and Safety Quiz The Use of BS7671:2008 +A3 2015 - Requirements for Electrical Installation Electric Cables Electric Cables 2 Steel Containment Systems Wiring Containment Multiple Choice Questions Selecting and Using Power and Hand Tools Hand and Power Tools Multiple Choice Questions

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30 31 32 36 38 41 42 43 44 46

FEATURES PAGE 10

06 We Can't Believe They Were An Electrician SPARKS Magazine uncovers some familiar faces with links to electrical engineering

08 What Are They Up To Now? SPARKS Magazine catches up with Scott Wigmore, winner of the 2010 SPARKS UK Electrical Apprentice of the Year competition

10 Could You Be The Next SPARKS UK Electrical Apprentice of the Year?

Entry is now open for the 2017 competition. We give you the low down on the biggest SPARKS event of the year

11 Schneider Electric Supporting Young Talent

Schneider Electric is onboard to support SPARK's search for the 2017 UK Electrical Apprentice of the Year

13 Go Brushless for More Power

Power tool manufactures like Hitachi are now incorporating brushless motors into their power tools

WI N PAGE 12

14 Makita G-Series Could be a Whizz for You

Power tool manufacturer Makita introduce their new G-Series range of tools specifically designed for young trades-people

16 Mini But Mighty HellermannTyton launch the new HelaCon Plus Mini series of push-in wire connectors

17 Gland Pack Evolution

SWA showcase their new cable gland pack, Tauras

18 On The Mark

BASEC fills us in on the importance of understanding cable markings

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20 Through the Keyhole

SPARKS Magazine has a nose around Burnley College

23 Schneider Electric Embrace the New

Schneider Electric introduce their Easy9+ and Resi9+ ranges

Mercedes-Benz know a van is more than just a mode of transport to an electrician, so they tailor their services to fit you!

28 Starring Role for Trainee Electricians in IET Films

Trainee Electricians from Cambridge Regional College are featured in the IET's new series of videos showing best practice in the industry

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26 Keeping Businesses Moving

35 The Only Way Is Up EAL's qualifications can now open doors to Higher Education and a future career in the industry

REGULARS 01 04 22 29

Editor’s Note Industry News App-rentice Tweet All About It!

34 Teabreak Time 47 Products & Services 49 Fired Up

COMPETITIONS 12 WIN a Klein Tools MM2300A Multi-meter

PAGE 26

Protecting homes for over 40 years

Bringing you the latest innovation with a new generation of consumer units and a brand you can trust The BS7671 Amendment 3 compliant Easy9+ and Resi9+ consumer unit ranges offer stylish, efficient and practical solutions with unique features at competitive prices.

schneider-electric.co.uk/easy9

Features include: • Over 30% more cabling space • 180˚ reversible enclosure door • Improved cable entries • Flush mount option • Customisable front face • Cable clamp kit option

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SPARKS MAGAZINE | AUTUMN ISSUE 2016 | INDUSTRY NEWS

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

BIGGEST SPARKS EVENT OF THE YEAR EXPANDS TO NORTHERN IRELAND The SPARKS UK Electrical Apprentice of the Year Competition will include Northern Ireland for the first time ever next year, with an additional regional heat taking place at Belfast Metropolitan College on Thursday 2nd March.

The premier facilities at the college will provide the ideal home for the Northern Ireland regional heat, which will see one winner from that region attending the grand final in March where an overall UK winner will be announced.

MEGGER'S NEW MFT

August marked an important milestone for NICEIC as it celebrated the 60th anniversary since its first inception.

The UK’s voluntary body for electrical contractors was officially incorporated on 10th August 1956.

The National Inspection Council for Electrical Installation Contracting as it was first known started out with 3,500 contractors.

Today, it has more than 19,000 Approved Contractors and an additional 9,000 domestic installers, making it the UK’s largest voluntary body within the electrical industry.

Megger’s new MFT1711 multifunction tester offers valuable extra features that were previously only available on more expensive instruments. These include a maximum Zs function, which makes it unnecessary to remember individual Zs readings when testing an installation, automatic RCD testing and true RMS voltage measurement.

The new entry-level model in Megger’s popular MFT1700 family of testers, it combines outstanding value for money with exceptional ease of use, and it features robust construction to guarantee long life, even when regularly used in tough, on-site conditions.

Safety is central to the design of the MFT1711. It is dust and rain proof to IP54, and it has a CAT IV 300V safety rating, which means that it can be used without concerns in any environment.

 NICEIC.COM

 UK.MEGGER.COM

The 2017 Competition is now open for entries  SPARKS-MAGAZINE.CO.UK/APPRENTICE-OF-THE-YEAR

NICEIC REACHES 60

INDUSTRY NEWS | AUTUMN ISSUE 2016 | SPARKS MAGAZINE

NEW WAGE AGREEMENT FOR ELECTRICAL INDUSTRY The electrical contracting industry has agreed on a four-year wage deal, which will take effect from January 2017. This is the first time that an agreement spanning four years has been determined between trade union Unite and the Electrical Contractors’ Association (ECA).

Some of the key changes to be implemented include wage increases of 2% in 2017, 2.5% in 2018, 2.75% in 2019 and 3% in 2020, and an encouragement of the recruitment of apprentices.  JIB.ORG.UK/PUBLICATIONS

NEW FIRE STANDARD BS 8592:2016 OFFERS GREATER CERTAINTY FOR INSTALLERS The cable industry has welcomed the introduction of the new British Standard BS 8592:2016 Electric cables; thermosetting insulated, non-armoured, fire-resistant, single core, non-sheathed cable of rated voltage 450/750V. The new single core cable standard ensures these small sized cables, commonly used for final circuit wiring of critical systems such as fire alarms and emergency lighting, now have a specification.

One of the major requirements to meet the new standard is to have ‘low emission of smoke and corrosive gases when affected by fire’.  BASEC.ORG.UK

DICKIES LAUNCH NEW TROUSERS FOR APPRENTICES Apprentices can now look stylish while at work when they wear the new Dickies two-tone ED24/7 trousers.

The 245gsm fabric ensures they are tough but light enough to retain agility. Most importantly they are free of any exposed metals such as zips, and buttons making them scratch free, with cargo pockets to ensure direct access to your tools so you can finish the job quickly and easily.

Functional and durable, these garments retain Dickies traditional construction standards.  DICKIESWORKWEAR.COM/EN

ARE YOU READY FOR THE ZOMBIE INVASION? The Electrical Industries Charity is looking for brave runners to participate in a 5k Zombie Evacuation Run to save the Allianz Park, London from a Zombie Invasion this Halloween on Monday 31st October.

The charity is offering a choice of two races including the Apocalypse at Alliance Park and the Dusk ‘Till Dawn Race that will leave you running for your life through a 5k course while navigating through a multitude of challenging obstacles. Challenge yourself at the Dusk ‘Till Dawn and test your survival abilities by being the last one standing to win a £200 reward.  SIGN UP HERE: ELECTRICALCHARITY.ORG

APPRENTICES VISIT PARLIAMENT Three Electrical Contractors’ Association representatives have given verbal evidence to a UK parliamentary inquiry looking into apprenticeships, held jointly by the House of Commons Business and Education Committees.

Apprentices Niall Watson of Derry Building Services and Charlotte Burton of NG Bailey participated in the session, alongside Frank Clayton, the Head of Group Learning and Development at NG Bailey.

Both Niall and Charlotte proved to be great ambassadors for the industry and took part in a lively debate with the MPs, describing how they got into their careers, including the limited role of their schools in this process.

Their own experiences of undertaking apprenticeships were also discussed during the session.

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SPARKS MAGAZINE | AUTUMN ISSUE 2016 | FEATURE

Y E H T A E D I O WE HAD N !

N A I C I R T C E L E N WERE A Some of the coolest and most influential people of all time have had links with electrical engineering. Familiar faces could have led very different, sparky lives if things had been a little different. Don’t believe us? Read on to find out who tried their hand at being an electrician.

Stuart Pearce was an electrician when he was signed up by Nottingham Forest. And he wasn't daft - he advertised his services in the match day programme! He worked as an electrician for four and a half years and is now a champion for asbestos awareness, fearing he was exposed to the substance whilst on the tools.

EARCE

SIR DAVID JASON

Long before the days of Del Boy, Sir David Jason was an apprentice electrician for six years. Lovely jubbly!

STUART P

ROWAN ATKINSON Rowan Atkinson studied electrical engineering at Newcastle University. He then continued to achieve a masters in the subject at The Queens College, Oxford in 1975.

GEORGE HARRISON George Harrison of legendary Beatles fame was quoted in an interview saying this: “I had a short go at being an electrician's apprentice, but I kept blowing things up, so I got dumped.”

Good job he stuck with the music then…

ALFRED HITCHCOCK Hitchcock’s first ever job when he left school at 16 was as an apprentice electrician at Henleys who manufactured electronic appliances.

SIR BOBBY CHARLTON Sir Bobby Charlton was originally an apprentice electrical engineer, believing that football wouldn't bring in a sustainable income. Football didn't pay as well in those days so he still used to pick up the tools in the off season when he didn’t get paid - who knew!

ELVIS

Sir David Jason Photograph by James McMilan | Rowan Atkinson Photograph by Eva Rinaldi

Elvis Presley went on a training course as an electrician with the Crown Electric Company but he didn't stick it out. He said: "I was training to be an electrician.

I suppose I got wired the wrong way round somewhere along the line."

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SPARKS MAGAZINE | AUTUMN ISSUE 2016 | INTERVIEW

WHAT ARE THEY UP TO NOW...

An Interview with a Previous SPARKS UK Electrical Apprentice of the Year Winner

INTERVIEW | AUTUMN ISSUE 2016 | SPARKS MAGAZINE

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The annual SPARKS UK Electrical Apprentice of the Year Competition has seen some incredible talent over the years, but what happens to the winner after they have enjoyed their well-earned victory? We thought it was about time that we caught up with one of our winners to see what they’ve been up to…

Scott Wigmore was our winner back in 2010 and he has become an extremely well-established electrician over the years: he’s already the main electrician at Portakabin, based in Bridgwater, and he has only just turned 26.

He took a tea break to tell us how he has gone from strength to strength, and he gave us some sterling advice while he was at it.

SPARKS: Where did you go to college and when did you graduate?

SW: I went to Bridgwater College and I graduated in 2011.

SPARKS: How did you manage to get your apprenticeship?

SW: I did my apprenticeship with PRP Electrical after doing some volunteer work with them. The volunteer work came about because they were subcontracting from my dad’s company at the time.

SPARKS: What made you enter the SPARKS UK Apprentice of the Year Competition originally?

SW: One of my tutors wanted to enter someone from my group after reading about the competition in SPARKS. It was really flattering to be chosen out of all of the other students.

SPARKS: What was the best thing about winning?

SW: It opened more doors for me and it gave me a really good buzz. I entered other competitions afterwards because I enjoyed it so much.

SPARKS: What was the highlight of the competition for you? Other than winning of course!

SW: The SPARKS UK Apprentice of the Year Final was set up really well because there were lots of things going on throughout the day. Other colleges were invited and there

were stalls and talks on things like the latest regulations. There was something for everyone who was there. I actually came back to the South West regional heat which was being hosted again at Bridgwater College a couple of years ago to help judge the competition with the Head Judge at the time, Tony Cable.

SPARKS: What are your views on apprenticeships? Would you encourage other people to do them?

SPARKS: What did you do after you graduated?

SPARKS: Do you have a brand that you swear by?

SW: I stayed with the same company that I did my apprenticeship with for eight years and I only left them two years ago.

SW: I always go straight for Knipex tools, but if I can’t find them I’ll buy CK Tools instead.

SPARKS: Who do you work for now?

SW: They’re one of the most important things out there! They keep our country afloat because they’re one of the best ways to get involved in a trade. You learn best by actually doing stuff and getting out there in the real world.

SPARKS: Do you think lecturers have an influence on the brands you buy?

SW: I’m now the main electrician at Portakabin in Bridgwater. I used to do a little bit of work for them when I worked with PRP Electrical when we were subcontracted, but they went on to get really busy and because they’d worked with me before, they called me and asked me to apply as a new electrician working for them full time. It’s a good job with lots of variety: one minute I can be in a small building, and the next I can be building a classroom. I get to do everything – not just the electrical stuff – and I wouldn’t change it for the world. The two years that I’ve worked here have gone really fast!

SW: I would say that it was my employer that had an influence on that.

SPARKS: What’s your favourite thing about being an electrician?

SPARKS: Was there a particular event or a person like your lecturer who really influenced during your time as a student?

SW: I’d have to say the more complex wiring diagrams like wiring boards, heating systems and panelling.

SPARKS: What’s your least favourite thing about being an electrician?

SW: Domestic work, like crawling into attic spaces! I’m more into commercial work, because domestic is very set in its way and you can easily be doing the same thing every day.

SPARKS: Have you got any advice for current students?

SW: Don’t put your site diary / portfolio on a backburner. The sooner that you can do your diary the better you’re going to be at the end of your course. You should be doing it throughout the course.

SW: There were two people for me, both from my college. The first was Roger Rogers because he was always there for me. If I was ever in college in the evening, he would stay in with me and we’d train until 9pm. The other is my lecturer Nick Roberts. He was a good teacher and he was always there with anything that I needed, and he put himself in charge of competition arrangements, which he didn’t have to do.

Apprenticeships are one of the most important things out there! They keep our country afloat because they’re one of the best ways to get involved in a trade.

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SPARKS MAGAZINE | AUTUMN ISSUE 2016 | UK COMPETITION

COULD YOU BE THE NEXT SPARKS UK ELECTRICAL APPRENTICE OF THE YEAR? The winner of the biggest SPARKS event of the year will go home with thousands of pounds worth of prizes from our major sponsors…

2016 WINNER

What happens then?

Students will be invited with their lecturers to attend one of seven regional events around the UK where they’ll spend the day competing against other students on practical tasks. Keep an eye on the SPARKS Magazine website to find out where these regional heats will take place.

The winner of each regional heat – plus the person who has received the highest score overall from all of the seven regional heats will then go forward to the grand final which will be held on 8th & 9th March 2017.

How does it work?

Each college can put forward one student for the competition. You can find the online application form on the SPARKS Magazine website at www.sparks-magazine.co.uk and it must be completed no later than 30TH NOVEMBER 2016. The entrant must be a Level 2 or 3 student who has completed an in-house practical test successfully and be no older than 24 years of age.

Previous finalists cannot be entered and there can be only one student entered per college or campus.

2016 prizes

What did this year’s winner have to say about it?

Luke Shield from Lakes College said: “I was so happy to be announced as the winner.

It was a surprise but I did work really hard, so it was nice to see that effort paying off. At the start I would never have thought that I would ever do it. It’s good for your CV and it’s a good thing to be a part of generally.”

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

UK COMPETITION | AUTUMN ISSUE 2016 | SPARKS MAGAZINE

PLATINUM SPONSOR

SCHNEIDER ELECTRIC SUPPORTING YOUNG TALENT Schneider Electric is delighted to have the opportunity to recognise and reward talent among young electricians by sponsoring this year’s SPARKS UK Electrical Apprentice of the Year Award.

Schneider Electric, a global specialist in energy management and automation and operating in over 100 countries, believes in investing in the future of the electrical industry and that means providing support and encouragement for young electricians.

Across the UK, Schneider has been running a successful Apprenticeship Programme for over 30 years, providing practical experience and educational training to more than 15 electrical apprentices per year, many of which are now in senior manager positions.

Working with local colleges, Schneider has influenced the apprenticeship curriculum to ensure industry needs are being met now and in the future.

Our teams regularly visit colleges

to encourage young talent to think about a career in Engineering and promote STEM (Science, Technology, Engineering, Maths) subjects.

Because tomorrow’s biggest challenges require the best education today, Schneider also offers Energy University, a free online, educational resource with more than 200 courses to help support and widen knowledge for students and professionals.

 Find out more: schneider-electric.co.uk/ energyuniversity

Schneider has been running a successful Apprenticeship Programme for over 30 years...  FOR ALL THE LATEST COMPETITION NEWS VISIT SPARKS-MAGAZINE.CO.UK

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SPARKS MAGAZINE | AUTUMN ISSUE 2016 | COMPETITION

TOOLS | AUTUMN ISSUE 2016 | SPARKS MAGAZINE

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GO BRUSHLESS AND GET POWERFUL

Why are power tool manufacturers such as Hitachi now incorporating brushless motors into their power tools?

Because brushless motors can be more powerful, as there is space to make the copper windings on the outside of the motor larger and there is none of the friction energy loss during use that brushed motors inevitably suffer from.

The result is a more efficient and longer lasting power tool.

Improved design Due to the more compact design, incorporating the brushless motor permits a reduction in size and weight of tools for easier handling. Not only that, the Hitachi brushless motor has large FETs (Field Effect Transistors) and highly durable electronic circuits for superior durability.

Brushless motors also improve dust proofing, which is important for installers as it gives the power tools a longer service life, saving time and money, not just in respect of cleaning the

power tools but replacing them too. The Hitachi electronic circuit board is silicone-coated to protect it from dust.

Benefits Another important benefit of brushless motors is the increased operator safety and overload protection. Brushless motors don’t generate the same heat as there are no carbon brushes and they can’t be burnt out.

They also offer better protection on kick-back control when operating.

Perhaps the area where the introduction of brushless technology has had most impact is in the cordless power tool sector. There’s nothing more frustrating than a power tool failing midjob simply because it needs to be charged.

With the huge improvement in efficiency this is no longer a pressing consideration. Brushless motors work particularly well in big cordless grinders and hammer drills because these tend to be overworked by users.

An important benefit of brushless motors is the increased operator safety and overload protection.

When powerful Lithium-ion (Li-ion) battery technology is combined with the benefits of brushless motors in cordless power tool ranges, electricians get more flexibility and choice out of their tools than ever before.

Manufacturers, such as Hitachi, are leading the way in providing this combination, providing tougher, faster and more advanced power tools with quick charging times and super efficient motors.  For more details on Hitachi Power Tools visit hitachi-powertools.co.uk

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SPARKS MAGAZINE | AUTUMN ISSUE 2016 | TOOLS

MAKITA G-SERIES COULD BE A WHIZZ FOR YOU Makita’s 18v LXT cordless tools are a popular choice for trade professionals: since launching the Lithium-Ion battery to power their cordless tools, this 18v range has expanded to more than 100 different products all powered by the same slide-on battery with fast charge times.

The new Makita G-Series range has been developed especially to meet the needs and aspirations of ambitious young tradesmen requiring quality power tools but at an effective level of performance and purchasing capacity.

The G-Series battery is identifiable by the white or grey top section and offers a 1.3Ah battery capacity and a 60-minute charge time with the DC18WA battery charger.

A quality range In the G-Series range of machines, quality is strictly maintained whilst the specification and performance factor is tailored to match the lower budget and less stringent applications of trade apprentices and trainees who are not yet able, or have the need, to purchase professional-level Makita power tools.

Both 14.4v and 18v tools are included in this expanding Makita range – drills, drill drivers, impact drivers, jigsaws, garden hedgetrimmers and line trimmers...

New legislation This Lithium-Ion battery platform also fills the void that will be left due to the withdrawal of Ni-cad battery power tools from 2017. New UK legislation will come into effect by the end of this year whereby manufacturers cannot supply tools with nickel-cadmium batteries due to the negative environmental impact from the disposal of cadmium, so the Li-ion Makita G-Series range offers affordable quality products without damaging the environment.

Both 14.4v and 18v tools are included in this expanding Makita range – drills, drill drivers, impact drivers, jigsaws, garden hedge-trimmers and line trimmers, with no compromise on performance standards. For example, the 18v G-Series powered drill driver, the Makita DF457DWE, generates 42Nm of torque and is easily capable of boring a 13mm hole in steel. It has 2-speed gearbox, 16 torque settings, keyless chuck, electric brake and variable speed control by trigger action and weighs just 1.7kg. The 14.4v impact driver, the TD126DWE, will deliver 3,000 impacts per minute and with up to 135Nm of tightening torque can comfortably handle M12 high tensile bolts.

 makitauk.com

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SPARKS MAGAZINE | AUTUMN ISSUE 2016 | SELECTING CABLE

MINI BUT MIGHTY The new HelaCon Plus Mini series of push-in wire connectors proves that size and attention to detail do matter when it comes to maximising convenience in professional electrical installation.

HellermannTyton has announced the launch of HelaCon Plus Mini, a new generation of push-in wire connectors for fast, easy, reliable connection and distribution of cables and conductors in electrical installations across Europe.

Impressively, they are 40 percent smaller compared with original HelaCon Plus series connectors.

No tools are required to apply HelaCon Plus Mini connectors. The improved design offers low cable insertion force and the integrated double spring holds both solid and stranded wires securely and reliably.

The transparent housing makes it easy to check that all conductors have correctly connected.

The variety of input poles that HelaCon Plus Mini provides means that installers can now enjoy the highest application flexibility according to the number of conductors and the available space.

Six different colours make it easy to identify the connector for the number of conductors, from two to eight.

 Material: Polycarbonate (PC)  Maximum current / voltage (VDE): 24 A / 450 V  Wire range (VDE): 0.5 to 2.5 mm² solid wires / 1.0 to 2.5 mm² stranded wires  Flammability: UL94 40  Operating temperature: -30°C to +85°C  Specifications: CE, cULus, ENEC, EN 60998-2-2:2004 (Intertek Semko; NEMKO AS; SGS Fimko Ltd.)

Expanding product offering This expansion compliments the already successful and established range of HelaCon, the releasable HECP3-32A & HelaCon Lux connectors.

The space-saving design maximises the room that electrical installers can work with when connecting many wires in limited spaces, such as flush-mounted junction boxes.

The standard packaging carton has been designed to comfortably fit into the large side pocket of professional work wear.

The improved round cable entry ports accommodate different conductor diameters and a convenient access port at the rear of the housing allows for simple voltage testing at any time.

Why not take a look at the technical specifications?

A Practical Variobox kit with 350 pieces of selected HelaCon Plus Mini wire connectors is available from wholesalers.  Visit hellermanntyton.co.uk

SELECTING CABLE | AUTUMN ISSUE 2016 | SPARKS MAGAZINE

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GLAND PACK EVOLUTION Remember the last time you terminated an SWA cable? Struggling with two spanners or grips, tightening the thin locknut? With plastic enclosures, tightening the banjo earth tag between two locknuts and bending it to get a good earth using a nut and bolt in a confined space? ď‚Š For further information visit swaonline.co.uk

Not just time saving, but a gland offering high integrity earthing connections and easy EMC shielding.

Professional electricians have for years had to overcome the problems of terminating SWA cables to metal and plastic enclosures with no quick or easy solutions - until now that is.

Specialised Wiring Accessories have launched a new cable gland pack called Tauras with everything to make the job easier.

The Tauras gland range incorporates everything in one kit including the award-winning EarthingNut™ which vastly simplifies fitting, giving 60% quicker durable terminations compliant with BS7671 to both plastic and metal enclosures every time.

Once you've tried Tauras you may realise just how much you hate the old gland packs. No more hunting for nuts and bolts or crimps, extra hole drilling, pinched fingers, skinned knuckles, or getting your spanner or grips into an impossible space.

Don't take their word for it - scan the QR code with a Smartphone and see Tauras for yourself. Not just time saving, but a gland offering high integrity earthing connections and easy EMC shielding.

DON'T LEAVE CABLE EARTHING TO CHANCE - JOIN THE TERMINATION REVOLUTION!

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SPARKS MAGAZINE | AUTUMN ISSUE 2016 | FEATURE

ON THE MARK 

The British Approvals Service for Cables (BASEC) fills us in on why it is vital that you understand cable markings.

DID YOU KNOW? According to the Approved Cables Initiative (ACI), it is estimated that up to 20% of cable products in the supply chain are unsafe, non-approved or counterfeit. This is a major concern for installers, who may not even be aware of the legal ramifications for the organisation or individual. Often it is not until cables are installed and have been tested that a problem is discovered.

ensure their cable products and facilities meet British, European and international standards. Cables are subjected to rigorous testing procedures at BASEC’s world-class cable testing laboratory, the largest in the UK, to ensure that they conform to the standards that they should do.

Although the manufacturers are responsible for the conformity of products, BASEC tests the same cables in parallel, and only when the cable has demonstrated its conformity to the required standards can it use the BASEC mark.

If it hasn’t got BASEC on the cable, it’s not BASEC approved.

Always check the markings on the cable sheath - not just the packaging.

Peace of mind Looking for the BASEC mark on the actual cable before you start work is a sure way to know that the cable you use will meet the requirements of BS 7671 and importantly that you have honoured your duty of care effectively.

Using non-compliant cable could cost you more in the long run and seriously damage your reputation as a quality tradesperson.

Taking responsibility

Electricians should ensure that the cable supplied by the distributor or wholesaler is the correctly specified cable. Always check the markings on the cable sheath - not just the packaging.

BASEC’s role in the cable industry BASEC encourages anyone who installs cable to know what cable markings to look for and to report any suspect cable.

They work with cable manufacturers to test, inspect and certify cable products to

Spotting faulty or counterfeit cable is very difficult, as some faults can exist in the cable that cannot be seen, felt or tested on-site.

These faults may not even show up in your post installation testing but will only come to light after your installation has been in use for a number of weeks or months and you have moved on to another job. By then it can be too late to avoid the enormous cost of rectifying the situation.

At the end of any installation, the customer will expect an Electrical Installation Certificate or Minor Works Certificate that confirms that the work meets BS 7671.

Re-read clause 133.1.1 of BS 7671, to make sure that the cable you used is compliant.

 Visit basec.org.uk for more information  Follow @BASECCables

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SPARKS MAGAZINE | AUTUMN ISSUE 2016 | 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 E-catalogue app lets you browse thousands of Hager products, technical data and downloadable PDFs all at the touch of your fingertips.

Compile all the gear you need for your latest project. The E-Catalogue lets you choose and add Hager products to a personalised project list and you can share these via email with clients and colleagues.

Once you’ve installed the app, all the data can be viewed offline so you can always see the latest offering from Hager.

Download the E-catalogue app for free from the App Store and Google Play for Android.

The IDEAL Networks AnyWARE™ app allows you to share test data. Used with the new LanTEK® III cable certifier, which can serve as a Wi-Fi hotspot, this helps increase productivity and reduce downtime.

Once tests have been performed, users simply activate the app and transfer the test data to their mobile device.

Once transferred, test results can then be sent on via email or file sharing apps. This means that installers can share test data with colleagues based off site without delay.

Test data can be downloaded to the free and simple to use IDEAL DataCENTER test result management software.

Choosing cables and calculating voltage drops for electrical installations up to 25 kW takes just a second with the new easy-to-use app from Megger.

Megger’s Cable Calc+ covers all commonly used types of cable.

It also allows the user to choose between the four most commonly used reference methods – B, C, 101 and 102. Data entry is fast and straightforward, and the app instantly shows the minimum recommended cable size, the calculated voltage drop in volts and as a percentage, and also the load current.

Additional features of Megger Cable Calc+ include fast access to concise information about Megger’s extensive range of test instruments for electrical contractors.

CONTAINMENT SYSTEM | AUTUMN ISSUE 2016 | SPARKS MAGAZINE

SCHNEIDER ELECTRIC EMBRACE THE NEW

In light of the new BS7671 Amendment 3 regulations, Schneider Electric jumped at the opportunity to create a new product range: Easy9+ and Resi9+.

Picture perfect

The fact that consumer units and wiring systems are fitted into varying environments means that having the correct product type and system in place has become more important than ever.

Whilst keeping costs low is always front of mind for contractors, it is essential that thorough consideration is given to safety and functionality. As part of this, it is crucial that contractors have access to fully compliant products with the necessary superior safety credentials.

Making it easy The additional cabling space at the top, bottom, sides and behind the busbar ensures a trouble-free and flexible install for all applications.

To ensure that every installation is finished neatly, both ranges now include

ď‚Š Visit schneider-electric.co.uk

improved labelling kits with clear pictograms and supporting text. Both ranges also include an incoming cable clamp kit option, providing a mechanical means to limit cable disturbance at the incoming device. Cabling flexibility has been enhanced by providing four large rear knockouts and additional top and bottom knockouts with left and right entries for incoming cables.

Easy9+ offers a contemporary designed consumer unit with a conventional busbar system, and the enclosure can be modified to suit split-load or other configurations on site, while the flexible split load configuration option ensures that mainstream applications can be catered for with just one consumer unit. Resi9+ offers a removable plug on pan assembly and fewer terminals to torque test, designed for speed of installation.

Due to the increasing visibility of consumer units within living spaces, Easy9+ and Resi9+ blend seamlessly with modern home aesthetics.

The customisable front also offers flexibility. This unique feature allows homeowners or electricians to enhance the look of the unit with anything from a family photograph to an advert for your business respectively, by going to

www.easycustomise.co.uk Additionally, they can be semi-flush mounted, reducing obtrusion into living and communal spaces.

ď‚Š For more information visit knipex.com

23

24

SPARKS MAGAZINE | AUTUMN ISSUE 2016 | QUICK QUIZ

!

N U F R O F T J US Wordsearch Try to find the following words that are all different types of force.

(Answers can be left to right, right to left, up, down or diagonal) L F O R C E E S T V A H V C E S R Y J L

M A E L E E H T R T Y X X G S V O W A F

E U N Q V E N O D O E C M A V T A I R D

W V Y O A H E T S X O N M V P M T I O K

J O I R I G D I R M Z J S B C R P E A S

 ACCELERATION  ADHESIVE  CENTRIFUGAL  CENTRIPETAL  COHESIVE

I R I S P T C J P I S Z U I E P I U A T

M N W Z E O A R M Z F M J N L C H S U L

G O O V L S L Y X Y H S E D T R G I F I N V U M I G D I J T E N Z M Z S K Z Y T

N J F L S I Y A J V U P A A U T R T N X

G S A N R E O V E I U L T C E C P C I T T R W R F B I X A C A M A X R L U G G G D B L B E R I P O J X E R R D Y Y K A U

 COMPRESSIVE  ELECTRICAL  FORCE  FRICTION  GRAVITATIONAL

V K J G P U G Z V I X O F Z L E N E A G G N B P B B I D L J E T Z F C P K N A M

G T I J S C H Y Z G E T L B I A C C W N

S H U V A J L V Y A B E G P G W E H O C I P R N B D T O E M M I K U N T Y U W A T I C R E Q M E A V V L S H T E P X D C L N C C D H R A L A P I K N U N K G Z V

 INERTIAL  MAGNETIC  MASS  SHEARING  TENSILE

SWITCH ON TO INDUSTRY RECOGNISED ELECTRICAL QUALIFICATIONS WITH EAL • gain the skills to deliver outstanding services in domestic, commercial and industrial settings • industry recognised qualifications in inspection and testing, periodic reporting, portable appliance testing and the 17th Edition Wiring Regulations • ensure you meet the requirements for electrotechnical industry schemes.

EAL qualifications are high quality, more demanding and make students aim higher.

David Quinton, Head of Plumbing and Electrical, South Gloucester and Stroud College

EAL Awards

EAL_Awards

01923 652400 customercare@eal.org.uk www.eal.org.uk

CLOSER TO

INDUSTRY

26

SPARKS MAGAZINE | AUTUMN ISSUE 2016 | SPONSORED FEATURE

KEEPING BUSINESSES MOVING

The amount of vans in the UK is growing because businesses who transport goods or services could not function without them.

A van is so much more than just a mode of transport; a van is an office, and it is an advert. This means that the demands placed upon it are so much higher. A van needs to be reliable, robust, up for the job, comfortable, smart and convey the right image.

At Mercedes-Benz Vans, they understand that a van needs to be on the road as much as is possible.

They can service vans outside of ‘normal’

working hours, which means businesses don’t need to miss out on work, as their van can be in workshops at night.

Mercedes-Benz Vans is able to do this as they offer extended opening hours across their nationwide Dealer Network, which has more than 110 after sales sites, with over one third offering round-the-clock servicing, and virtually all the rest operating at least two shifts daily to enable very late hour opening.

SPONSORED FEATURE | AUTUMN ISSUE 2016 | SPARKS MAGAZINE

27

MobiloVan In addition, Mercedes-Benz Vans customers benefit from MobiloVan – a free call-out service across the UK and Europe, which comes as part of the 30 year free roadside assistance cover with every vehicle purchase. Across the 150 MobiloVan roadside assistance vehicles covering the UK, there is an average response time of less than an hour, with over 80% of vehicles fixed at the roadside.

Mercedes-Benz Vans even sends their head office colleagues out to spend time with customers and understand the role that vans play in their operation, from Account Managers to Managing Director, Steve Bridge.

MobiloVan helps customers to keep their vehicles on the road - it can cost up to £500 per day for a business’ vehicle to be ‘off the road’.

MobiloVan cover includes notifiable failures such as indicator failures or damaged wing mirrors, and also contributes up to £130 (Inc. VAT) for roadside damage repairs.

Mercedes-Benz Vans is committed to the ongoing education of drivers to ensure that all of the vehicles’ safety features and benefits are utilised, with a strong focus on the maintenance of the van to ensure it runs at its best. For example, the use of GenuineParts to maximise uptime; Mercedes-Benz invests more than £4.6 billion annually in Research and Development to ensure that each vehicle part is developed to work in harmony with the rest of the van.

Mercedes-Benz invests more than £4.6 billion annually in Research and Development...

Making the right choice It is also important for uptime that the right vehicle is chosen in the first place. Depending on the operation of the van, it may be that the Extra-Long Citan is more effective for the job rather than a Compact Vito.

Utilising the advice from a professional vandedicated Dealer can guide you on the type of vehicle for the work required, and to fit within your budget. With extensive finance options, as well as an all-new Approved Used offering, getting the right van for a business is now easier than ever.

Approved used range Mercedes-Benz Vans has redeveloped its Approved Used offering, enabling all operators to access the right van for them, whatever their vehicle requirement. The Approved Used range of vans are all now available up to 6 years old, with a maximum mileage of 150,000 miles. The vans come with a full service history and have to meet a multi-point pre-sale check to qualify, with outstanding finance, theft and insurance write-off checked.

Approved Used vans come with a 12-month MOT, 12-month insurance-based ‘wear and tear’ warranty (which can be extended), and are serviced as required if there is less than

5,000 miles to the next service. The corrosion warranty is renewed and there is a minimum of 5mm tyre tread depth remaining, as well as the vehicle benefiting from a full valet.

Mercedes-Benz Vans understand that customers want to enjoy the benefits of owning a Mercedes-Benz van, and it is their job to ensure van drivers are in the right vehicle for their requirements and budget.

The Approved Used criteria has been developed to better serve the needs of van operators – it is very clear exactly what standards all of the Approved Used vans now adhere to, and enables customers to have a broader spectrum of vehicles that could better suit their needs.

Currently there are around 4 million vans on UK roads, and with more and more businesses requiring either the transportation of goods or services, keeping businesses moving is vital for the van industry as it continues to rise.

 For further information visit MBVans.co.uk

28

SPARKS MAGAZINE | AUTUMN ISSUE 2016 | REGULATIONS

STARRING ROLE FOR TRAINEE ELECTRICIANS IN IET FILMS Trainee electricians at Cambridge Regional College (CRC) are starring in a new series of videos produced by professional body the Institution of Engineering and Technology (IET) to show best practice in the industry.

Steven Devine, author of the Student's Guide to the IET Wiring Regulations, visited the college with a crew to record a film which will demonstrate risk assessment and safe isolation procedures essential when working in the electrical industry.

The videos will be used in an online training guide to feature on the IET’s website – part of a major push to ensure safe practice is at the heart of training in the industry.

John Malone, Head of Construction at CRC, said he was delighted that the college had been chosen to feature in the guide.

“We are very proud to work with the IET and help reinforce the message that regulations are essential for safe working and to avoid dangers like personal injury, fire and damage,” he said.

The IET, one of the world’s largest engineering institutions, has launched a new website where it will feature videos and industry updates as well as training information to support students and apprentices.

Steven, a former lecturer at CRC, said it was vital that students and apprentices understand the importance of the Wiring Regulations and follow the latest IET’s associated guidance.

“Training at CRC is an excellent example of good practice and by filming here we will help spread the message of the importance of key electrical regulations,” he said. “We want to provide students and apprentices with the support they need for their studies and careers and videos like this are essential.”

The IET also put on two masterclasses in working practices and wiring regulations for

students and set a test paper, with prizes for the top three students.

Winner Joe Smith, runner-up Joe Fallon and third place Hocine Lagoug each received a copy of the wiring regulations and other trade publications.  Visit theiet.org

TWEET

ALL ABOUT IT! Here's what we've been enjoying on Twitter lately!

ï…´/SPARKSMAGAZINE

30

SPARKS MAGAZINE | AUTUMN ISSUE 2016 | EXERCISE

Cable Selection Covering Outcome 4 of Unit 304 ‘Understand the Types, Applications and Limitations of Wiring Systems and Associated Equipment’ (Level 3 NVQ Diploma in Installing Electro-Technical Systems and Equipment 2357-13 / 91 and EAL unit QELTK3 / 04)

 TASK A: Cable specifications The following questions require you to study the relevant sections of the IET BS7671: 2008

Requirements for Electrical Installations.

Q1. Cable voltage ratings for cables to BS5467, thermosetting insulated, armoured cables with a conductor operating temperature

of 90°C are...

Q2. PVC insulated non-armoured cable to BS6004, rated at 450 / 750V with a conductor operating temperature of 70°C,

is suitable for what?

Q3. Cables having low emission of smoke and corrosive gases when affected by fire can be abbreviated using what letters?

Q4. Thermosetting insulated armoured cables for voltages of 600 / 1000V, with low emission of smoke and corrosive gases

and conductor operating temperature of 90°C, is British Standard...

Q5. 300 / 500V screened electric cables, to BS8436, are for use in what?

Q6. The maximum voltage recommended for mineral insulated cables and their terminations, to BS EN 60702-1, is?

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

EXERCISE | AUTUMN ISSUE 2016 | SPARKS MAGAZINE

Cable Selection 2 Covering Outcome 4 of Unit 304 ‘Understand the Types, Applications and Limitations of Wiring Systems and Associated Equipment’ (Level 3 NVQ Diploma in Installing Electro-Technical Systems and Equipment 2357-13 / 91 and EAL unit QELTK3 / 04)

 TASK A: The following questions require you to study the relevant parts of APPENDIX 4 of the IET BS7671: 2008 Requirements

for Electrical Installations.

Q1. The Table reference for current rating and voltage drop of 60°C thermosetting insulated flexible cable is...

Q2. The percentage voltage drop allowance for a lighting circuit supplied from a private generator is...

Q3. The rating factor for ambient temperature (Ca), of a 60°C mineral insulated cable covered with a 70°C PVC sheath is...

Q4. The rating factor for a single layer of 12 PVC insulated multi-core cables supported on a cable ladder is...

Q5. The maximum current rating of a 3-phase 400V, 25mm² multi-core 70°C thermoplastic non-armoured cable, fixed to cable tray is...

Q6. The maximum voltage drop per metre for the 25mm² in question 5 above, when supplying a resistive load is...

Q7. A 2-core, 10mm², 90°C thermosetting insulated flexible cable with protective conductor, supplying a single-phase load, has a

maximum current rating and voltage drop of what?

Q8. A 50mm², 90°C multi-core armoured cable with thermosetting insulation and aluminium conductors, installed to Reference

Method D, supplying a single-phase load has a maximum current rating of what?

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

31

32

SPARKS MAGAZINE | AUTUMN ISSUE 2016 | EXERCISE

Health and Safety Quiz By using the letter and number codes, match the abbreviation with the correct meaning.

No.

ABBREVIATION

1

HASAWA

A

Health and Safety Executive

2

CDM

B

Mobile Elevating Work Platform

3

PUWER

C

Reporting of Injuries, Diseases and Dangerous Occurrences Regulations

4

HSE

D

Personal Protective Equipment

5

RIDDOR

E

Construction (Design and Management) Regulations

6

COSHH

F

Approved Codes of Practice

7

MEWP

G

Provision and Use of Work Equipment Regulations

8

PPE

H

Respiratory Protective Equipment

9

RPE

I

Control of Substances Hazardous to Health

10

ACoP

J

Health & Safety at Work Act 1974

MEANING

CHECK

CHECK

1=

6=

2=

7=

3=

8=

4=

9=

5=

10 =

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

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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 | AUTUMN ISSUE 2016 | PUZZLE CORNER

TEA BREAK

?

TIME

DID YOU KNOW? Electric shocks from static electricity such as those experienced when getting out of a car or walking across a man-made carpet can be more than 10,000 volts, but the current flows for such a short amount of time that there is no dangerous effect on a person.

1 3

4

2 5

6

7

8

?

10

9

11

12 13 14

15

16

ELECTRICAL TRIVIA

17

The first private house in England ever to have electric lighting was Cragside in Northumberland, which was built by the industrialist and inventor Sir William Armstrong in 1863. The electric lighting was personally installed by the famous inventor Joseph Swan, a close friend of Sir William, in 1880.

JOKING ASIDE Q: What is the definition of

a shock absorber?

A: A careless electrician!

Q: Why are electricians

always up to date?

A: Because they are

ACROSS

DOWN

4. Loss or gain of an atom or group of atoms 7. An assembly of parts, some fixed, others movable 11. A chemical reaction that will continue if fuel,

oxygen and heat are present 12. A temperature device which has two different

metals bonded together with a lead for each one 13. The guy with the left hand rule 14. A type of nut or a place to live 16. This is safer than a ladder when working

above ground 17. Where the SPARKS UK Electrical Apprentice

of the Year Competition will be going next year

for the first time (2 words)

1. The rotating element in the stationary armature

of an a.c. generator 2. Force x Distance moved in the direction of the

force (J) (2 words) 3. Energy that possesses motion 5. Friendly term for an electrician 6. An enclosure for the protection of cables 8. PPE stands for 'personal _______ equipment' 9. May be found on old installations, porcelain

connector with internal threads 10. A system for supporting a cable basket, released

using a special key 11. The weakest link in a circuit 15. A mobile elevating platform (2 words)

"current specialists."

Answers (hope you didn’t peek before you finished!) ACROSS: 4. Ionisation, 7. Machine, 11. Fuse, 12. Thermocouple, 13. Fleming, 14. Castle, 16. Scaffold, 17. Northern Ireland DOWN: 1. Rotor, 2. Work done, 3. Kinetic, 5. Sparky, 6.

Trunking, 8. Protective, 9. Screwit, 10. Gripple, 11. Fire, 15. Scissor lift

34

SPONSORED FEATURE | AUTUMN ISSUE 2016 | SPARKS MAGAZINE

35

THE ONLY WAY IS UP Did you know that gaining an EAL qualification opens access to Higher Education and a career?

Progressing your career in electrical engineering is undoubtedly aided by industry-leading and recognised, certified qualifications.

As the specialist skills partner and awarding organisation for industry, EAL is delighted to announce many of our qualifications now attract UCAS points.

These include the EAL Level 3 Diploma in Electrical Installation. This provides the learner an opportunity to practice and be assessed in a secure environment on the installation and testing of electrical equipment together with the relevant theory of electrical installation to the current edition of the wiring regulations.

By gaining UCAS points, this qualification can help support learners who wish to progress into Higher Education, an apprenticeship or other employment.

It combines theory with practical application and offers a wide choice of assessment methods

EAL is delighted to announce many of our qualifications now attract UCAS points. including online examinations, controlled knowledge tests and practical assessments.

It can be delivered as standalone qualifications or alongside others and is suitable for all ages – from Key Stage 5 learners (aged 16-18) to adult learners (19+).

Our qualifications meet Department for Education requirements and will appear on school and college league tables.

Industry endorsement They have been designed with and endorsed by employers and professional industry associations, increasing employability opportunities on completion of the qualification.

And they are approved and recognised by some universities, assisting progression to Higher Education.

Employers will say, in many cases, strong vocational qualifications put candidates in a much better position than those who have only studied traditional GCSEs, A-Levels and degrees.

Awarding UCAS points, after a rigorous process, is a big step in the right direction and gives a fairer weighting to learners who have achieved these qualifications as they seek access to Higher Education and a career. ď‚Š For more information about EAL qualifications, go to eal.org.uk

36

SPARKS MAGAZINE | AUTUMN ISSUE 2016 | EXERCISE

The Use of BS 7671:2008 +A3 2015: Requirements for Electrical Installations Covering Outcome 7 of Unit 305 ‘Understanding the Practices and Procedures for the Preparation and Installation of Wiring Systems and Electro-technical Equipment in Buildings, Structures and the Environment’, (Level 3 NVQ Diploma in Installing Electro-Technical Systems and Equipment 2357-13 / 91 and EAL unit QELTK3 / 04)

Q1

Which one of the following electrical installations falls within the scope of BS7671?

a

Equipment on aircraft

b

Lightning protection systems

c

Equipment of mobile and fixed offshore installations

d

Medical locations

Q2

Which one of the following installations would NOT be within the statutory control of an authoritative body?

Ans.

Q6

Which one of the following is NOT a classification of external influence?

a

Current reading

b

Environmental conditions

c

Construction of buildings

d

Utilisation

Ans.

Q7

For a cable, totally surrounded by thermal insulation for a length of 400mm, the rating factor to be used is?

a

Petrol filling station

b

Caravan site

c

Theatre

a

0.50

d

Agricultural site

b

0.51

c

0.68

d

1.00

Q3

A device that is intended to limit transient overvoltages and direct surge currents is defined as...

a

An over-current device

b

A protective device

c

A surge protective device

d

A residual current device

Q4

When assessing the nature of supply demand, the number and type of circuits required shall NOT be determined by...

a

Loads to be expected on various circuits

b

Any special conditions such as harmonics

c

Anticipated future demand if specified

d

Unexpected loads on various circuits

Q5

The abbreviation ESQCR, used in BS7671, refers to the...

a

Electricity Safety, Quality and Continuousness Regulations

b

Electricity Safety, Quality and Continuity Regulations

c

Engineering Safety, Quality and Continuity Regulations

d

Engineering Safety, Quality and Continuousness Regulations

Ans.

Ans.

Q8

Ans.

Ans.

A circuit with a design current of 44A is installed using a cable with a current rating of 52A. If the voltage drop for the cable is 4.4mV/A/m, the circuit voltage drop for a 15m run of cable is?

a

1.50V

b

2.90V

c

3.43V

d

4.16V

Q9

A device intended, for safety reasons, to cut off all, or a discrete section, of an installation by separating the installation or section from every source of electrical energy provides...

a

Functional switching

b

Isolation

c

Switching off for mechanical maintenance

d

Emergency switching

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

Ans.

Ans.

Ans.

EXERCISE | AUTUMN ISSUE 2016 | SPARKS MAGAZINE

A 32Amp protective device conforming to

Q10 BS88-2 when carrying a fault current of 125A,

Ans.

should operate in...

a

0.1s

b

0.2s

c

0.4s

d

5s

Q11

Which one of the following British Standards applies to cooker control units?

a

BS3535

b

BS1363

c

BS5655

d

BS4177

Where practicable, main protective bonding to the Q12 gas service in a building, shall be made within... a

600mm of the meter on the supply side

b

600mm of the meter on the customers side

c

3m of the meter on the supply side

d

3m of the meter on the customers side

To ensure that protective measures for safety

Q16 during the intended life of an installation shall a

The maximum demand of the installation

b

The frequency and quality of maintenance

c

How often portable electrical equipment will be replaced

d

Possible structural alterations

Ans.

Q17 A final circuit is the wiring between the...

Ans.

a

Distribution company’s fuse and energy meter

b

Main switch and distribution board

c

Distribution board and current using equipment

d

Distribution company’s fuse and last outlet point

10mm2

b

16mm2

c

25mm2

d

35mm2

Q14

An AC voltage of 120V between conductors is classified as...

a

BS EN 61539-3 and have an enclosure manufactured from non-combustible material

Ans.

b

BS EN 61439-3 and have an enclosure manufactured from non-combustible material

c

BS EN 61439-3 and have an enclosure manufactured from combustible material

d

BS EN 61539-3 and have an enclosure manufactured from combustible material

Ans.

Control equipment, incorporating over-current

Q19 protection, must be installed with every electric

a

Extra low voltage ELV

b

Low voltage LV

c

Separated extra low voltage SELV

a

0.37kW

d

Reduced low voltage RLV

b

0.50kW

c

1.00kW

d

2.00kW

Skilled person (electrically) is defined as: A Q15 person who possesses, as appropriate to the nature of the electrical work to be undertaken

Ans.

assemblies shall comply with...

neutral of 120mm2, is?

a

Ans.

Within a domestic (house-hold) premises,

Q18 consumer units and similar switch-gear

The minimum c.s.a. of the main protective

Q13 bonding conductor, in relation to a supply

Ans.

not diminish, it is necessary to assess...

Ans.

motor having a rating of...

Ans.

a

Adequate education, training and practical skills, and who is able to perceive risks and avoid hazards which electricity can create

b

Adequate education, training and practical skills, and who is not able to perceive risks and avoid hazards which electricity can create

a

BS EN 60309-2

b

BS EN 60937-2-6

c

Adequate education, training and practical skills

c

BS EN 60947-3

d

Is able to perceive risks and avoid hazards which electricity can create

d

BS EN 60598-2-18

Q20

A luminaire installed in zone 0 of a swimming pool shall be to?

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

Ans.

37

38

SPARKS MAGAZINE | AUTUMN ISSUE 2016 | EXERCISE

Electric Cables Covering Outcome 4 of Unit 304 ‘Understand the Types, Applications and Limitations of Wiring Systems and Associated Equipment’ (Level 3 NVQ Diploma in Installing Electro-Technical Systems and Equipment 2357-13 / 91 and EAL unit QELTK3 / 04)

The IET Wiring Regulations provide best practice guidance and data for cable selection and installation.

The IET On-Site Guide provides guidance regarding cable installation including bends, clipping distances and selection for cable containment.

Q1. Use the IET On-Site Guide: Table D5 ‘Bends in Cables’, to complete the following extract:

INSULATION

FINISH

OVERALL DIAMETER*

Thermosetting or thermoplastic (pvc) (circular, or circular stranded copper or aluminium conductors)

Not exceeding

Factor to be applied to overall diameter of cable to determine minimum internal radius of bend

3 (2)†

Exceeding 10mm but not exceeding 25mm

4 (3)†

Exceeding

Q2. Complete the following key associated with Table D5:

i. For flat cables the diameter refers to the

ii. † The figure in brackets relates to single-core

, i.e. the widest part of the cable. of stranded construction installed in

.

Q3. By using the IET On-Site Guide: Table D1 ‘Supports for Cables in Accessible Positions’, complete the following table of information.

MAXIMUM SPACING OF CLIPS NON-ARMOURED THERMOSETTING OR THERMOPLASTIC SHEATHED CABLES OVERALL DIAMETER OF CABLE* (MM)

GENERALLY

Horizontal (mm) Not exceeding 9

Vertical (mm) 400

Exceeding 9 and not exceeding 15 Exceeding 15 but not exceeding

350

Exceeding 20 but not exceeding 40

400

450

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

EXERCISE | AUTUMN ISSUE 2016 | SPARKS MAGAZINE

39

Q4. Use the IET On-Site Guide: Appendix E, and any other resource to complete the following tasks:

 TASK 1: What is the difference between thermosetting and thermoplastic PVC insulation?

 Task 2: Appendix E concerns cable capacities for three specific cases, these are: i) Straight runs of conduit not exceeding

in length.

ii) Straight runs of conduit exceeding 3m in length, or in runs of any length with

.

iii) Trunking

 Task 3: Find and state the cable factors for each of the following cable types and installation methods:

i) 2.5mm2 PVC insulated cable with solid conductors installed in a straight length of galvanised steel conduit.

ii) 10mm2 PVC insulated cables with stranded conductors installed in a 2m length of galvanised steel conduit.

iii) 10mm2 PVC insulated cables with stranded conductors installed in a 4m length of galvanised steel conduit.

 Task 4: Determine a suitable size of conduit to accommodate the following sized cables in a 2.8m straight run of steel conduit:

 3 x 1.5mm2 (stranded conductors)

 3 x 4.0mm2

 1 x 10.0mm2

 2 x 16.0mm2

 Task 5: Determine the number of 25mm2 conductors that can be installed in a 25mm diameter steel conduit.

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40

SPARKS MAGAZINE | AUTUMN ISSUE 2016 | EXERCISE

 Task 6: Determine a suitable size of conduit that is 5m long incorporating 3 bends to accommodate the following sized cables:

 3 x 1.5mm2 (solid conductors)

 3 x 4.0mm2 (solid conductors)

 2 x 10.0mm2 (stranded conductors)

 Task 7: Determine the number of 16mm2 conductors with thermosetting insulation that can be installed in a 50mm x 50mm

galvanised steel trunking.

Q5. What is the minimum inner bend radius for a 25mm conduit?

Q6. What is the minimum internal radius for a 16mm2 single-core insulated non-armoured cable with circular conductors

installed in trunking?

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EXERCISE | AUTUMN ISSUE 2016 | SPARKS MAGAZINE

Electric Cables 2 Covering Outcome 4 of Unit 304 ‘Understand the Types, Applications and Limitations of Wiring Systems and Associated Equipment’ (Level 3 NVQ Diploma in Installing Electro-Technical Systems and Equipment 2357-13 / 91 and EAL unit QELTK3 / 04)

CABLES AND RESISTANCE: It is helpful to review the basic principles of conductor and insulation resistance when considering electric cables.

CONDUCTOR: Remember, conductor resistance is affected by conductor length, cross-sectional-area (c.s.a.) and temperature.

 Task 1: Complete the following using either the term ‘increases’ or ‘decreases’.

i) The resistance of a conductor

with increasing length

ii) The resistance of a conductor

with decreasing c.s.a.

iii) The resistance of a conductor

with increasing temperature

INSULATION: Consider insulation resistance in the context of length and cross-sectional-area.

 Task 2: Complete the following using either the terms ‘increases’, ‘decreases’ or ‘remains the same’.

i) The insulation resistance of a cable

with increased length

ii) The insulation resistance of a cable

with increasing c.s.a.

iii) The insulation resistance of a cable

with decreasing length

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41

42

SPARKS MAGAZINE | AUTUMN ISSUE 2016 | EXERCISE

Steel Containment Systems Covering Outcome 4 of Unit 304 ‘Understand the Types, Applications and Limitations of Wiring Systems and Associated Equipment.’ (Level 3 NVQ Diploma in Installing Electro-Technical Systems and Equipment 2357-13 / 91 and EAL unit QELTK3 / 04).



Identify the correct name, material used and one application for each of the following containment systems.

STEEL CABLE CONTAINMENT SYSTEM

NAME

MATERIAL USED

APPLICATION

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EXERCISE | AUTUMN ISSUE 2016 | SPARKS MAGAZINE

Practice Multiple-Choice Questions for Wiring Containment Covering Outcome 4 of Unit 304 ‘Understand the Types, Applications and Limitations of Wiring Systems and Associated Equipment.’ (Level 3 NVQ Diploma in Installing Electro-Technical Systems and Equipment 2357-13 / 91 and EAL unit QELTK3 / 04).

Q1

Which one of the following is classed as ‘containment’?

Ans.

Q6

The device used to prevent undue strain on cables in a vertically mounted trunking is a...

a

Standard power cables

a

Clamp

b

PVC Conduit

b

Pin-rack

c

Flexible cable

c

Support block

d

MICC cables

d

Off-set

Q2

Grey enamel is often used as a surface finish of which one of the following?

a

Conduit and cable tray

b

Conduit

c d

Q3

Ans.

Q7

The best practice method for connecting Mineral Insulated Copper Covered cable, (MICC), to a motor terminal box is...

a

To form an anti-vibration loop where the cable terminates

Trunking

b

Terminate to a plastic box first

Cable tray

c

Terminate to a metal box and complete circuit with SWA

d

Use a 90° conduit inspection box at the motor

The cable capacity rating for a conduit allows for...

Q8

Which one of the following containment systems is more likely to be used underground?

Additional cables to be installed at a later date

b

Expansion of cables when in use

a

Trunking

c

Sufficient cable temperature rise without damage

b

Cable tray

d

Circulating air space allowing cables to shed heat in use

c

Conduit

d

Ducting

A cable ladder can be installed...

a

Vertically

b

Horizontally

c

In outside locations

d

All of the above situations

Q5

The accessory used to join lengths of metal trunking is a...

Ans.

Ans.

a

Q4

Ans.

Ans.

Ans.

Q9

Spacer-bar, distance and hospital are all types of...

a

Conduit

b

Trunking support mechanisms

c

Saddle

d

Support bracket

Q10

Male and female bushes are found in which wiring containment system?

a

Connector

a

Steel Trunking

b

Screwed sleeve

b

Ducting

c

Joiner

c

Steel conduit

d

Coupler

d

Cable basket

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Ans.

Ans.

Ans.

43

44

SPARKS MAGAZINE | AUTUMN ISSUE 2016 | EXERCISE

Selecting & Using Power & Hand Tools Covering Unit 305 ‘Understand the Procedures for Selecting and Using Tools, Equipment…’ (Level 3 NVQ Diploma in Installing Electro-Technical Systems and Equipment 2357-13 / 91 and EAL unit QELTK3 / 04).  TASK A: Attempt the following questions concerning the selection and use of power tools.

Q1. What is the first action to be taken before using power tools?

Q2. Hand-held power tools are also called...

Q3. List THREE power tools that are likely to be used when carrying out first-fix electrical work in domestic premises.

Q4. Identify FOUR reasons why portable electrical equipment may cause harm to the operative.

Q5. A single-phase 110V reduced low voltage supply, limits a fault voltage to earth to a value of...

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EXERCISE | AUTUMN ISSUE 2016 | SPARKS MAGAZINE

ď‚Š TASK B: Attempt the following questions concerning hand tools.

Q1. List the hand tools that are likely to be required when working with steel conduit.

Q2. Name the tool that allows verticals and horizontals to be checked.

Q3. Name THREE types of file that may be required when working with steel trunking.

Q4. A metal trunking has been marked out for a number of holes to be drilled. To maintain accuracy and to prevent the twist-drill

slipping from the position marked, explain what action should be taken.

Q5. Name THREE types of drill or cutter that can be used in a portable drilling machine.

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45

46

SPARKS MAGAZINE | AUTUMN ISSUE 2016 | EXERCISE

Hand and Power Tools Practice multiple-choice questions.

Q1

Claw, ball-pein and sledge are all types of...

Ans.

Q6

A vice that is hinged on one side and has ‘V’ – shaped jaws is suitable for holding which of the following?

a

Masonry device

b

Hammer

a

Flat, square metal bar

c

Screwdriver

b

Tubes, pipes and round bar

d

Saw

c

Timber planks

d

Plastic trunking

Q2

Flat, round, half-round, square and warding are all types of...

a

File

b

Drill

c

Cutter

d

Hammer

Q3

Lineman, long-nose and combination are names associated with...

Ans.

Ans.

Q7

A twist drill has which of the following features?

a

Plain shaft for securing in a chuck

b

Conical tip

c

Spiral flutes

d

All of the above

Q8

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

a

Hammers

a

Neoprene gloves

b

Screwdrivers

b

Face mask

c

Hacksaws

c

Safety helmet

d

Pliers

d

Safety glasses or goggles

Q4

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

Ans.

Q9

A tool suitable for cutting 20mm holes in metal trunking is...

a

The tool can be used at 1200V

a

A 21mm diameter twist drill

b

The tool is insulated to a maximum of 1000V

b

A 22mm metal punch

c

The tool is mechanically tested

c

A 20mm hole-saw

d

The tool is only suitable for live electrical working

d

A jig-saw

Q5

The recommended hacksaw blade that ensures at least 2-teeth in contact with metal at any time when cutting steel conduit or trunking is...

Ans.

Ans.

Ans.

Ans.

A suitable tool for obtaining levels across

Ans.

Q10 large distances, between locations of different height or around corners, is a...

a

14 tpi

a

Water level

b

18 tpi

b

Laser level

c

24 tpi

c

5m tape measure

d

32 tpi

d

Spirit level

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Ans.

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

PRODUCTS AND SERVICES | AUTUMN ISSUE 2016 | SPARKS MAGAZINE

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.

ADVERTISE IN THIS SECTION

 sparks-magazine.co.uk

SNICKERS’ NEXT GENERATION OF ALLROUND WORKING CLOTHES Snickers’ Next Generation ALLROUND Workwear is ready for anything on-site – all day, every day. For professional craftsmen, they boast modern designs that ensure smart, professional looks and that are an amazing fit. Garments like WorkTrousers, Jackets, RainWear, Shirts and Sweaters combine to deliver maximum, hardwearing comfort and innovative functionality. They really are the ultimate choice for today’s professional craftsmen, perfectly suited to all kinds of work in all kinds of everyday on-site environments.

 snickersworkwear.co.uk

The SALUS Smart Home system features the Universal Gateway UG600 and Smartphone App that are required to control and monitor the system.

Users can quickly and easily connect a variety of devices. A new iT530 thermostat, smoke Alarm, CO2 alarm, camera, smart switch and smart button are also set to join the range. Products can even interact with each other by simply setting up ‘One Touch’ rules that are personalised to the user and that communicate with the products. At any time, users can press the ‘scan my home’ icon and quickly obtain an overview on every SALUS Smart Home product in their property.

 salus-smarthome.com

NEW ACCESS CONTROL RANGE FROM ESP Security products supplier, ESP, relaunches its access control range, with a simplified collection of products and a new brand name: Aperta. With just two main components – door station, with optional access control keypad, and the hands-free monitor – the Aperta range will allow the creation of anything from a single door entry system to a multi usage system. The Aperta video door entry systems utilise 2 wire technology.

The 2 wire technology provides a friendly platform by reducing the number of cores required for connection and requires just one power supply unit, ensuring just one PSU needs to be concealed and supplied with a single electrical mains supply.

 espuk.com

NEW SALUS SMART HOME SYSTEM

SNICKERS RUFFWORK – HEAVY DUTY WORKING CLOTHES Part of the Next Generation Workwear range, Snickers’ RUFFWork working clothes are packed with loads of functionality. The special ‘Dobby Pro’ fabric used in these garments provides a unique combination of comfort and durability. The ‘Cordura 1000’ reinforcements are up to 3 times more durable than regular Cordura and, with a special DWR coating to repel oil and moisture, these trousers will stay looking good for longer. RUFFWork trousers are available in different feature and functionality levels that include holster pockets, built-in ventilation and a stretch gusset. They’re also available in Denim and as shorts.  snickersworkwear.co.uk

If you would like your product or service featured in this section, email press releases to:

editor@sng-publishing.co.uk

47

SPARKS MAGAZINE | AUTUMN ISSUE 2016 | PRODUCTS AND SERVICES

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

48

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.

ADVERTISE IN THIS SECTION

 sparks-magazine.co.uk

OPTIMUM CHARGE RATE WITH SCOLMORE’S USB OUTLET

SOLID GEAR ATHLETIC SAFETY TRAINERS FROM HULTAFORS

Scolmore’s USB socket offers a faster, more powerful charging solution for portable electronic devices. The 2.1A USB outlet guarantees the optimum charge rate regardless of the device charging. Its USB outlet provides a constant charge rate and guarantees charge no matter what the device and has proven to reduce the recharge time of devices. This USB technology has been integrated into the CLICK 13A 1 and 2 gang switched sockets with single 2.1A USB outlet. They are available within the Mode, Deco, Polar, Definity, Define and Metalclad ranges - providing a total of 84 different plate designs and finishes.

Solid Gear’s Athletic range of Safety Trainers brings together functionality in a range of styles, designs and colours to create versatile safety shoes that are suited to a variety of tasks.

Superlight EVA midsoles combine with anti-slip rubber outsoles and breathable uppers to ensure optimal comfort. All the shoes in the athletic safety range are made using a composite plate with aluminium toecaps to ensure maximum protection on site. Designed with ultimate performance and shock absorption in mind, there’s 6 different styles in the Safety Trainers range with sizes from 3 to 13, all of which deliver market-leading comfort whatever you need and wherever you are on site.

 scolmore.com

 solidgearfootwear.com

SNICKERS WORKWEAR RECOMMENDS TOE GUARD SAFETY FOOTWEAR

MAKITA INTRODUCE NEW JOB SITE RADIO AND BLUETOOTH SPEAKER

Now part of the Hultafors Group UK’s portfolio of premium brands, Toe Guard does just what its name suggests – delivers great value safety footwear for all kinds of working environments and weather conditions. Starting at only £29.95, this range of safety shoes and boots is one of the fastest growing in Scandinavia where there are heavy demands for safety, quality and value. With a variety of different safety shoes and boots available in the range, every product has in-built hi-tech designs that combine top quality materials, ultimate comfort and maximum safety.

The Makita DMR107 Job Site dust and shower proof radio has full AM and FM frequency ranges, twin 76mm diameter speakers with a maximum output when using an 18v battery of 3.5watts from both speakers. It is now equipped with Bluetooth Class 2 to wirelessly play music from a mobile device such as phone, MP3 player or tablet with a range up to 10 metres. There’s also the Makita DMR200 Job Site Bluetooth speaker. This delivers a massive 10.0 watts output from the two-way speaker system, and features a 100mm diameter woofer and 36mm tweeter with a Bluetooth range of up to 10 metres.

 snickersworkwear.co.uk

 makitauk.com

If you would like your product or service featured in this section, email press releases to:

editor@sng-publishing.co.uk

ELECTRICAL SAFETY | AUTUMN ISSUE 2016 | SPARKS MAGAZINE

Ever wondered what the things we are warned about would look like if they ever did actually catch fire? Then look no further. These photos from Electrical Safety First show the consequences of purchasing and using counterfeit goods – as you can see, it can cost you a lot more than you bargained for. Stay safe!

Microwave

Counterfeit phone charger

Fake charger

Tumble dr

yer ullet

Fake Nutrib

If you are worried you might be overloading your plug sockets at home, try the Socket Overload Calculator on our website at

sparks-magazine.co.uk/try-the-socket-overload-calculator A big thank you to our friends at Electrical Safety First for supplying us with these photos.

Check out their website for more information on how to be savvy with your electrics:

se

Fake fu

electricalsafetyfirst.org.uk

Overloaded bedroom

socket

49

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