How far do you have to go to be compliant with Part P when working with an existing installation?
You are't required to bring existing work up to standard of the current regs, right? The rule-of thumb (sorry, historically) is that you should leave the installation no less safe than you found it.
But, I'm told work cannot be completed if the bonding is not up to scratch. How can these two things both be true, as, if the bonding was not there before you started and is not there afterwards, you've not left it less safe than before, have you?
What other things must be as per the latest regs before you can complete any work?
For instance, if I add a socket to an existing bedroom circuit, must I add an RCD?
Alex