Technical Archives - Professional Electrician https://professional-electrician.com/tag/technical/ the latest news, products, tools and info for UK electricians Wed, 30 Nov 2022 12:22:33 +0000 en-GB hourly 1 NICEIC Pocket Guide App | Top Product Award 2022 https://professional-electrician.com/features/niceic-pocket-guide-app-top-product-award-2022/ Tue, 06 Dec 2022 07:00:16 +0000 https://professional-electrician.com/?p=40099 NICEIC Pocket Guide App | Top Product Award 2022

Free to download and available to all NICEIC certified businesses, the NICEIC Pocket Guide App houses a bank of 35 technical reference guides, all updated to BS 7671:2018+A2:2022 where relevant. Also included are handy calculators for checking Zs values, Adiabatic Equations, Conductor Resistance and Length and Design Current. Fully searchable and clearly displayed, these engaging ...

The post NICEIC Pocket Guide App | Top Product Award 2022 appeared first on Professional Electrician.

]]>
Factors affecting the current-carrying capacity of live conductors | NICEIC https://professional-electrician.com/technical/factors-affecting-the-current-carrying-capacity-of-live-conductors-niceic/ Fri, 15 Jul 2022 08:00:35 +0000 https://professional-electrician.com/?p=37537 Factors affecting the current-carrying capacity of live conductors | NICEIC

The experts at NICEIC consider the effect of ambient conditions and installation methods when determining minimum live conductor sizes. BS 7671 often specifies a minimum cross-sectional area for live conductors and for the purposes of resistance to mechanical damage likely in a particular application or environment. In most cases, the limiting factor is current-carrying capacity. ...

The post Factors affecting the current-carrying capacity of live conductors | NICEIC appeared first on Professional Electrician.

]]>
Understanding RCDs and their application | Scolmore https://professional-electrician.com/technical/rcds-time-delay-device-essential-when-selectivity-is-required-scolmore/ Thu, 23 Jun 2022 08:00:32 +0000 https://professional-electrician.com/?p=37226 Understanding RCDs and their application | Scolmore

Jake Green, Technical Engagement Manager with Scolmore Group, looks at RCDs in general and highlights the necessity of a time delay device when selectivity between RCDs is needed. The principle of operation of an RCD is well understood. The live conductors are wrapped around a toroid that is readily magnetised and demagnetised and whilst the ...

The post Understanding RCDs and their application | Scolmore appeared first on Professional Electrician.

]]>
Changes in regulations regarding the sale and use of halogen lamps | ECA https://professional-electrician.com/technical/changes-in-regulations-regarding-the-sale-and-use-of-halogen-lamps-eca/ Mon, 21 Mar 2022 09:00:52 +0000 https://professional-electrician.com/?p=35668 Changes in regulations regarding the sale and use of halogen lamps | ECA

Luke Osborne, ECA Energy & Emerging Technologies Solutions Advisor, takes us through the changes in regulations regarding the sale of halogen lamps and what this will mean for the wider industry. The sale of most halogen lamps and lighting fixtures with fixed bulbs was banned in October of last year. The ban was initially set ...

The post Changes in regulations regarding the sale and use of halogen lamps | ECA appeared first on Professional Electrician.

]]>
The ever-changing regulations of SPDs: What is the future for domestic usage? | Scolmore https://professional-electrician.com/technical/the-ever-changing-regulations-of-spds-what-is-the-future-for-domestic-usage-scolmore/ Thu, 17 Mar 2022 09:00:05 +0000 https://professional-electrician.com/?p=35674 The ever-changing regulations of SPDs: What is the future for domestic usage? | Scolmore

Scolmore Group looks at the ever-changing regulations regarding SPDs and ponders what the future might hold for domestic usage. BS 7671 is due for a second amendment this year and we currently understand SPDs are due for review. It’s proposed the current regulations are changed to simplify the process a designer completes to identify if ...

The post The ever-changing regulations of SPDs: What is the future for domestic usage? | Scolmore appeared first on Professional Electrician.

]]>
Made 2 Measure: I’m looking for a versatile clamp meter, what can you suggest? https://professional-electrician.com/technical/made-2-measure-im-looking-for-a-versatile-clamp-meter-what-can-you-suggest/ Thu, 13 Jan 2022 08:00:34 +0000 https://professional-electrician.com/?p=34858 Made 2 Measure: I’m looking for a versatile clamp meter, what can you suggest?

The technical team at Megger answers the latest technical query from end users. YOU ASK: I’M LOOKING FOR A NEW CLAMP METER. IT MUST BE VERSATILE, AND I’D LIKE TO BE ABLE TO CONNECT IT TO MY SMARTPHONE SO THAT I CAN MONITOR AND DOWNLOAD THE RESULTS. WHAT DO YOU SUGGEST? MEGGER SAYS: There are ...

The post Made 2 Measure: I’m looking for a versatile clamp meter, what can you suggest? appeared first on Professional Electrician.

]]>
Emergency lighting: is BS 5266-1 effective enough? | Carvell Group https://professional-electrician.com/technical/emergency-lighting-is-bs-5266-1-effective-enough-carvell-group/ Wed, 12 Jan 2022 08:00:03 +0000 https://professional-electrician.com/?p=34853 Emergency lighting: is BS 5266-1 effective enough? | Carvell Group

CARVELL

Christopher Carvell MIET MIFSM PCQI, MD and Principal Consultant at Carvell Group, discusses the effectiveness of BS 5266-1 and if the standard is effective in meeting its objective. Although British Standards are not legislation, it is accepted that within the built environment they do form the basis to what we work to as a minimum. ...

The post Emergency lighting: is BS 5266-1 effective enough? | Carvell Group appeared first on Professional Electrician.

]]>
Can you afford to ignore harmonics? | Chauvin Arnoux https://professional-electrician.com/technical/can-you-afford-to-ignore-harmonics-chauvin-arnoux/ Tue, 11 Jan 2022 08:00:09 +0000 https://professional-electrician.com/?p=34847 Can you afford to ignore harmonics? | Chauvin Arnoux

CHAUVIN

Julian Grant of Chauvin Arnoux provides more detail about harmonics and the problems they create, as well as their relationship with the Wiring Regs. Harmonics are currents in the supply system at whole-number multiples of the supply frequency. Individual harmonics such as the 2nd occur at 100 Hz (assuming a 50 Hz supply), the 3rd ...

The post Can you afford to ignore harmonics? | Chauvin Arnoux appeared first on Professional Electrician.

]]>
Requirements for passive fire stopping | ECA https://professional-electrician.com/technical/requirements-for-passive-fire-stopping-eca/ Mon, 10 Jan 2022 08:00:39 +0000 https://professional-electrician.com/?p=34843 Requirements for passive fire stopping | ECA

ECA

Gary Parker, ECA Technical Manager, reminds contractors of the basics they need to know when it comes to passive fire protection. Passive fire stopping is an essential requirement in the Wiring Regulations (BS 7671:2018). It can also be integral to meeting the requirements of key legislation such as the Health and Safety at Work Act, ...

The post Requirements for passive fire stopping | ECA appeared first on Professional Electrician.

]]>
Are you testing safely? | GAMBICA https://professional-electrician.com/technical/are-you-testing-safely-gambica/ Fri, 07 Jan 2022 08:00:20 +0000 https://professional-electrician.com/?p=34838 Are you testing safely? | GAMBICA

GAMBICA

There’s lots of information out there that goes into great depth on what you should be testing and how you should go about it. Unfortunately, it’s not always easy to understand. Here Jacqueline Balian of GAMBICA offers advice on making sure you’ve got the right kit for the job. Do you sometimes struggle to fully ...

The post Are you testing safely? | GAMBICA appeared first on Professional Electrician.

]]>