Morning everyone . Question regarding wiring of new circuits into plastic cu . I’m wiring an extension on a property soon . The consumer unit is under the stairs and it’s plastic it’s all rcbo Wylex board in good condition with a few spare ways . Probably the last of its generation before we moved into metal boards . My question is can I add 3 new circuits and surge protection to the board and still comply with regs . I cant find a definet answer in the regs book . Wondering if anyone else has had this scenario .
Thanks
Thanks