A semi-detached house has a prehistoric fuse box with rewirable ceramic fuses. It will shortly be replaced with a modern consumer unit. The existing circuits are:
1. Lights
2. Upstairs sockets
3. Downstairs sockets
4. Kitchen sockets
5. Cooker
6. Shower
The following circuits will be added to the consumer unit:
7. Central heating
8. Burglar alarm and CCTV
9. Outside lights
I have been informed that the best choice is a split load consumer unit with two RCDs and space for RCBOs. My intention is that circuit 8 has its own RCBO but what is the optimal way to allocate circuits to RCD A and RCD B? Also, should any other circuits have their own RCBO?
