Hi,
I have just rewired my newly built extension and my electrician confirmed the wires were run correctly safe zones, depths etc. the plasterers are due to come in over the weekend and render and multi finish the room.
Due to this I called my electrician to come and test the circuits however he is on holiday for another week. Due to this I connected all the lights – working fine and the sockets - ring main seems to have a fault.
It is connected to a 32a MCB and every time I switch it on the MCB and RCD trips. I have done the following
Tested for a short between each socket (except for the legs which are buried in conduit in the screed) - MCB and RCD trips
Tested with all sockets disconnected - MCB and RCD trips
Tested with both legs disconnected on the extension side (leaving them connected at the CSU) - MCB and RCD trips
Removed the legs from the CSU - MCB and RCD do not trip
Tested the new circuit in a known working MCB - MCB and RCD trips
I have an external socket but don’t think this makes any difference as the circuit trips even when the legs are disconnected from the extension side.
In testing the wires between the sockets I set my multi meter to ohms and confirmed there is no link between the L and N.
Any suggestion would be appriciated
I have just rewired my newly built extension and my electrician confirmed the wires were run correctly safe zones, depths etc. the plasterers are due to come in over the weekend and render and multi finish the room.
Due to this I called my electrician to come and test the circuits however he is on holiday for another week. Due to this I connected all the lights – working fine and the sockets - ring main seems to have a fault.
It is connected to a 32a MCB and every time I switch it on the MCB and RCD trips. I have done the following
Tested for a short between each socket (except for the legs which are buried in conduit in the screed) - MCB and RCD trips
Tested with all sockets disconnected - MCB and RCD trips
Tested with both legs disconnected on the extension side (leaving them connected at the CSU) - MCB and RCD trips
Removed the legs from the CSU - MCB and RCD do not trip
Tested the new circuit in a known working MCB - MCB and RCD trips
I have an external socket but don’t think this makes any difference as the circuit trips even when the legs are disconnected from the extension side.
In testing the wires between the sockets I set my multi meter to ohms and confirmed there is no link between the L and N.
Any suggestion would be appriciated