I've got a couple of rolls of 1.5 & 2.5 twin & earth left over from a renovation a couple of years ago. Red & black cable. Can this be used now cable is brown & blue?
Not to BS 7671 = IEE Wiring Regulations 16th Edition.
However, in itself , BS 7671 has not got the force of law behind it as such, therefore it is legal to use it.
It would be a judgement call whether to use it or not
Would the use of it present a danger that does not already exist?
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