I know this is not a new topic, but searching the archives hasn't revealed a post with a definitive answer.
The situation: I've just had an extension built, as part of which the old fusebox was replaced with a dual consumer unit (13 MCBs in total). The main house supply is a TT system - one phase from overhead 3-phase street cables, with local earth via an earthing rod.
Problem: The electrician has installed a 30mA 80A RCD as the main switch, i.e. the whole house is now on this single unit. There are no other RCDs or RCBOs.
I know that this is a Bad Thing (tm) for various reasons of convenience, but is it actually contrary to the current wiring regs? i.e. am I within my rights to demand that he come back and install the proper combination of 100mA whole-house RCD + individual 30mA RCDs where appropriate, at his cost? If so, can someone tell me exactly which of the regs I should say have been contravened?
TIA