Graham’s article in the latest IET Wiring Matters explores earth fault loop impedance values for supplies up to 100 A, following the update of ENA Engineering Recommendation P23 in 2018.
The article can be viewed here.
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The suite of Guidance Notes to support the recently published BS 7671:2018 Requirements for electrical installations (IET Wiring Regulations 18th Edition) is now available to order from the IET on their web-site. Guidance Note 3 is already available, along with the On-Site Guide.
Included in this, are the following publications, for which our Managing Director and Principal Consultant, Graham Kenyon, is proud to be the author of the amendments in the latest Editions.
Order your copies now.
IET Guidance Note 5: Protection Against Electric Shock, 8th Edition
IET Guidance Note 6: Protection Against Overcurrent, 8th Edition
IET Electrical Installation Design Guide, 4th Edition
IET Code of Practice for Electric Vehicle Charging Installations, 3rd Edition
Graham is also an acknowledged contributor for the following Guidance Notes:
- Guidance Note 1: Selection and Erection, available September 2018
- Guidance Note 3: Inspection and Testing, available August 2018
- Guidance Note 8: Earthing and Bonding, available November 2018
G Kenyon Technology Ltd are not responsible for the contents of other web-sites linked from this page
Pre-order NOW: IET Code of Practice for Electric Vehicle Charging Equipment Installation – 3rd Edition
Now available to Pre-order, the IET Code of Practice for Electric Vehicle Charging Equipment Installation – 3rd Edition
This new Edition, for which our Managing Director and Principal, Graham Kenyon, is the lead author, has been completely revised and updated in-line with the 18th Edition of the IET Wiring Regulations (BS 7671:2018 Requirements for electrical installations).
Included in this Edition are:
- completely new sections on Vehicles as energy storage, and Integration with smart metering and control, automation and monitoring systems
- a new Annex with commentary on wireless power transfer (WPT) installations, which are expected to become increasingly common
- updated guidance on inclusive design, alternative sources of supply, metering, and installations at filling stations to align with the APEA / EI publication Guidance for Design, Construction, Modification, Maintenance and Decommissioning of Filling Stations, that was revised in June 2018.
Click Here to pre-order from the IET
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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, Regulation 411.3.3 requires 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:
- The upper rating for socket-outlets requiring RCD protection in accordance with Regulation 411.3.3 has increased from 20 A to 32 A.
- 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.
- 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 necessary.
G Kenyon Technology Ltd is not responsible for the content of other web-sites linked from this article.
Hear about key changes being introduced in 18th Edition, from key committee experts.
BS 7671:2018 Requirements for Electrical Installations was 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. A further date has now been added, 7 January 2019 at the IET, Savoy Place, London.
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 (bookings closed)
7 January 2019 IET London: Savoy Place
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
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
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.
NOTE: G Kenyon Technology Ltd are not responsible for the content of other web-sites linked from this page.
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.
G Kenyon Technology Ltd is not responsible for the content of other web-sites linked from this page.
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.
Note: G Kenyon Technology Ltd is not responsible for the contents of other web-sites linked from this page.
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.