BS 7671 18th Edition AMD 2

Thanks for the info and link.

From the press release:

Significant changes include:

• a new requirement for Arc Fault Detection Devices (AFDDs) in some AC final circuits for installations in some types of higher risk residential buildings;

• the requirement for the fire safety design of buildings to be documented where specific conditions of external influence exist, such as protected escape routes and locations with risk of fire;

• method for determining the requirement to provide overvoltage protection;

• changes to identification, labels and notices, such as for consumer units, affecting how safety information is provided to the user of the electrical installation;

• a chapter on Prosumer’s Low Voltage Electrical Installations, in a new part, Part 8.

as well as:

Further changes are included throughout all parts of BS 7671, including the incorporation of Amendment 1:2020 to BS 7671:2018 as part of the main document.

Indeed thanks for the link JP.

The bit that caught my eye was

"Members of the committee responsible for the technical content of BS 7671, JPEL/64, are not permitted to release any further information before the publication date"

I do not recall anything like that for previous AMDs - is it a new thing or did I just not realise it was the case last time? 

I  presume there will be the usual rash of wiring matters type articles to cover anything revolutionary or contentious in the days after publication.

Mike.

John, thank you for the heads-up.

I shall be particularly interested in "method for determining the requirement to provide overvoltage protection".

mapj1 said:

I do not recall anything like that for previous AMDs - is it a new thing or did I just not realise it was the case last time? 

It's always been the case. I've been involved with activities of JPEL/64 for almost 20 years, and it's always been the same, as with other BSI Committees.

Similarly, it's possible to communicate about the content of a draft only after the draft has been published for public comment, but not before.

Thanks for clarifying  - it seems fair enough, and thinking back we used to do that with the 3GPP stuff, so there was more or less a united front about when a new release came out (*), but it was more than a decade ago, and I  have no idea if it is still true  -it just read a  bit oddly seeing it like that in a press release - especially as that very  release seems to 'trailer' the contents.

Mike.

(*) though of course those companies who sent delegates to the meeting still had an in-house advantage as they provided the content and the research that supported it.

The signing off by the Great Leader of a new version of the Wiring Regulations is carried out in an ancient and secret ceremony in the Throne Room of Savoy Place. The Head Scribe conveys the new document written with quill pens, in Latin on velum, by the scribes in the basement of Savoy Place.  After the secret ceremony the State Trumpeters sound a fanfare from the roof of the building and the anointed document is conveyed under escort to the secret printers some where below ground in a far off place. At least that is what I was told as the ceremony is most secret. I did hear that the document is signed with Michael Faraday's own original Biro so it must be true. 

vero nihil verius

Useful, we now know who is specifically responsible for any errors or spelling mistakes! The Latin translation may well have been quite difficult, Romans knew little of the words electricity, arc, or even insulation. Resistance (electrical) was right out of scope, and the units must have been interesting being presumably in cubits and pennyweights.

vero nihil verius ..

ah yes, using veroboard is a bit rough.

Sic transit gloria mundeum, as they say,

and she (Gloria) really should have taken those anti-nausea tablets,  a transit van is not the best way to travel if you are feeling delicate.

M.

I hope that there are measures already in place to monitor the effectiveness or otherwise of these AFDD things.

I know! I know! I am hoping in vain and that really, it is all about the money.

Just sit back and watch them claim vindication for the introduction of these infernal things because of the forthcoming lower incident rates, when in reality it will be because electricity prices are rising, and people will be cutting back not only upon amounts used, but also frequency of use too.

I shall be making good use of the 'Departures' box to aid my customers in being able to afford the stuff which really matters, such as the fitting of RCDs where there are none present.

Welcome to the world of the £2000 consumer unit, and that's without the labour added.