CPC stands for Circuit Protective Conductor, which is basically the earth wire for the circuit and forms part of a system to join together all exposed conductive (metal) parts and connect them to the main earthing terminal If it has been recommended that a CPC needs extending, you should use a registered electrician to carry out the work
Answered by Sarah, Electrical Safety Expert
CPC stands for Circuit Protective Conductor, which is basically the earth wire for the circuit and forms part of a system to join together all exposed conductive (metal) parts and connect them to the main earthing terminal
If it has been recommended that a CPC needs extending, you should use a registered electrician to carry out the work. You can find one in your area here.