RCD protection for socket-outlets in the 18th Edition (forthcoming BS 7671:2018)

(c) IET anbd BSI

Image from IET web-site

The publication of the 18th Edition of the IET WIring Regulations (forthcoming BS 7671:2018) is imminent, and BSI and the IET have publicised some of the key changes, which can be viewed on the IET web-site.

When Amendment No. 3 to BS 7671:2008 was published in 2015, we reported on changes to RCD protection for socket-outlets in Regulation 411.3.3, with socket-outlets in AC systems rated up to and including 20 A requiring RCD protection unless a risk assessment stated otherwise.

With the 18th Edition, it is anticipated that Regulation 411.3.3 will require all socket-outlets in AC systems rated up to and including 32 A to be protected by a 30 mA RCD, the only exception being for installations other than in dwellings, where a documented risk assessment determines RCD protection is not necessary.

The salient facts here for Regulation 411.3.3 that designers will be obliged to consider are:

  1. The upper rating for socket-outets requiring RCD protection in accordance with Regulation 411.3.3 will increase from 20 A to 32 A.
  2. There is no longer an exception to Regulation 411.3.3 for dwellings, regardless of whether a risk assessment was in place, and regardless of the appliance(s) to be served. An AC appliance that is not compatible with 30 mA RCDs in dwellings must therefore be permanently connected to the electrical installation, unless it is rated for use with a socket-outlet exceeding 32 A.
  3. If an exception is made in installations other than dwellings, to omit RCD protection for socket-outlets rated at 32 A or less, there must be a documented risk assessment that determines RCD protection is not neccessary.
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BS 7671:2018 18th Edition of the IET Wiring Regulations Interpreted by the experts

Hear about key changes being introduced in 18th Edition, from key committee experts.

BS 7671:2018 Requirements for Electrical Installations will be issued on 2 July 2018. If you’ve been wondering what has changed and what you might need to do differently, attending this update seminar just four days later will give you the answers. 

The three experts have active roles in the JPEL/64 committee led approach to the IET Wiring Regulations, so are well-placed to interpret the new edition and explain how it impacts the way you work.

Benefit from the discussion encouraged throughout the day, with plenty of time for delegates to question what, why and how with our panel as well as other delegates. You won’t get such comprehensive clarification by reading articles or sifting through the Regs themselves…
5 July 2018 IET Birmingham: Austin Court

John Bradley, Chair, JPEL/64 – Electrical Installations
Mark Coles, Head of Technical Regulations, IET and Secretary, JPEL/64 Sub-Committee D – External Influences
Graham Kenyon, Chair IET WRPC, Deputy Chair JPEL/64 Sub-Committee D – External Influences
View the full programme >
Notes:
1. The content of this post was provided as an IET mailshot in March 2018.
2. G Kenyon Technology Ltd cannot be held responsible for the content of external web-sites linked from this post.

Draft for Public Comment (DPC) for IET Code of Practice for Electric Vehicle Charging Installations, 3rd Edition

Cover of IET CoP for EV charging installations, 2nd Edition

The 3rd Edition of the IET Code of practice for electric vehicle charging installations is due to be published later in 2018.

A draft for public comment is now available from the IET web-site: https://www.theiet.org/resources/standards/dpc-ev-3rd-ed.cfm

The consultation period will end on 28 February 2018, and all comments must be submitted to the IET by this date, in accordance with the instructions in the link above.

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FREE Webinar Electrical Energy Storage Systems: how to install, operate and maintain

 
Graham Kenyon, author of the Code of Practice for Electrical Energy Storage Systems
Electrical Energy Storage Systems: how to install, operate and maintain
23rd October 2017 | 12:30pm Reasons to attend:

  • Learn how to put a framework in place for the installation, operation and maintenance of storage systems
  • Find out the common risks associated with storage systems and how to overcome them
  • Ask questions directly to the author of the IET Code of Practice for Electrical Energy Storage Systems
REGISTER FOR FREE  (On demand, even if you missed it!)

Principal speaking at Solar & Storage Live 4 October 2017

Our Principal, Graham Kenyon, will be speaking on 4 October at Solar and Storage Live, NEC Birmingham, 12:30-14:00.

You will hear about the recently-published IET Code of Practice for Electrical Energy Storage Systems.

Looking forward to meeting you there.

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New IET Electrical Energy Storage Video

The Institution of Engineering and Technology has released this video discussing Electrical Energy Storage Systems for those interested in the recently published Code of Practice for Electrical Energy Storage Systems, that our Principal is pleased to have co-authored.

The Code of Practice is now available, see here for more details on this ground-breaking publication.

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Now Available from the IET – Code of Practice for Electrical Energy Storage Systems

The IET’s latest Code of Practice, the Code of Practice Electrical Energy Storage Systems, is now available. Find out more..

Co-authored by Martin Cotterell of Tesla, and our Principal, Graham Kenyon, it is set to be an invaluable resource for those involved in the planning, procurement, design, installation, commissioning and maintenance of electrical energy storage systems.

IET Code of practice for Electrical Energy Storage Systems: the thought leaders behind the new publication

The IET publishes Code of Practice Electrical Energy Storage Systems in August 2017.
It is set to be an invaluable resource for those involved in the planning, procurement, design, installation, commissioning and maintenance of electrical energy storage systems.

Hear from members of the IET’s technical committee, including our Managing Director and Principal, Graham Kenyon, about the development of this important publication, in the latest IET Wiring Matters article. The article can be viewed here: http://electrical.theiet.org/wiring-matters/66/energy-storage/index.cfm

The Principal
The Principal
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18th Edition DPC out now

The Draft for Puplic Comment of the 18th Edition of the IET Wiring Regulations (BS 7671), is now available.

Public comments can be submitted via the BSI web-site.

Have your say … see how here: http://electrical.theiet.org/wiring-regulations/dpc/index.cfm

 

18th DPC Cover © IET

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BS 7671 Requirements for electrical installations (IET Wiring Regulations) is the standard for electrical installations in the UK.

New 2017 edition of HTM 06-01

The Department of Health has today published the new 2017 edition of HTM 06-01: Electrical services supply and distribution, which Graham, our Director and Principal Consultant, is proud to have helped develop.

The latest HTM 06-01 can be downloaded here: download link

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