Hi, I have a detached double garage to my new build which has power running to it from a 20A MCB (protected by an RCD) in the house Consumer Unit, which connects to a second CU in the garage. The garage CU contains a 6A MCB for the garage light and a 16A MCB for the double socket. Would I be able to uprate the 16A MCB to a 20A MCB to enable me to run an additional double socket via a radial circuit? Obviously the whole garage is protected by a 20A MCB in the house and RCD anyway. The wiring for the sockets in the garage is 2.5mm2.
Many thanks for any help!