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.
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?
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?
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'.
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