Still applies.

IDK, I don't have a copy of the latest book.I must have missed that. Won't a steel cabinet comply now?

Eh? Surely plastic CUs which were not in 'non-combustible enclosures' were fine, and extensively installed, in the days of 17th, weren't they?At least under the 17th you could still use plastic CUs, as long as they were mounted within a non combustible enclosure...

Ah, right. Having refreshed my memory, it was Amd 3 (in 2015) of BS7671:2008 ("17th") which introduced the requirement for 'non-combustible' domestic CUs. Plastic ones has been OK for the first 7 years of 17th.No. I was I stalling metal boards under the 17th.

Yes, I think it was 'anticipated', even though it didn't actually 'appear' until towards the end of 17th. There was probably a year or so's consultation and messing about with Amd 3 before it was published in January 2015, then another 6 months before it became a 'requirement'.I'm sorry, I'd forgotten it was part way through. I must have been premature then. I was installing metal long before then, as directed by the company...maybe they knew something was coming?

As I understand it ... what happened in 2011 was Amendment 1, primarily about RCD protection. The 'non-combustible CUs' first appeared in Amendment 3, in 2015.2011.

The cynic in me would suspect that it's high enough to be profitable for a dodgy electrican, but low enough that fighting it is likely to cost more than it saves.£500 is an odd price given what has been identified
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