Hi guys. Just a quick question. If changing a board only and tails are in wall burried or in a cavity, am I required to change them if they are existing? Or can I note it on cert that they was existing? In my eyes they need changing as if in wall rcd protection is needed and if in cavity there is problems with cavity wall insulation. Just looking at changing a board for assessment and the cables are back entry including tails and don’t want to get caught out.
Cheers
Cheers