Is an RCD required for changes to existing circuits

Hi All, I need some help....

I am refitting my kitchen and have had a couple of electricians in to give me quotes. Both are aware that I am wanting this work carried out mid July.

The first guy didn't mention anything about RCD protecting been a requirement, yet the second guy did, and went as far as to say he'd recommend a new CU, after taking a look at my CU (i live in a 19 year old property).

My question is; who is right? Also I read that if you design the circuit before 1st July then you can get around this? I am really confused if the first guy is just not that well informed, or if the second guy is trying to get whatever he can out of me.

Its probably worth noting that there is not actually a "new" circuit anywhere, it will be simply additions and changes to existing cooker/lighting/ringmain.

Thanks in advance
Paul

If his alteration includes concealled wiring then the work will need to be RCD protected to comply with the 17th edition of the regulations. It is true that if the work is designed before the 1st July then it can be done to the 16th edition, however I'd push towards it being done to the 17th. RCD on sockets is a good idea anyway.

thanks very much for quick response.

I know this is a bit of a hard question to answer, but given the fact my property & CU is about 19 years old, will it most likely accept an RCD instead of a MCB or will a new CU most likely be required?

show us a pic of your old CU

or at least tell us the make, colour, and the part no shown on at least one of the breakers

okay will do later when i'm home.