I haven't got a copy of the regs handy, so I was wondering if someone could do me a favour and tell me if I need to have RCD protection on a piece of SWA running outside?
It will be linking my main house consumer unit to one in a brick outbuilding, which will have a 30mA RCD main switch or perhaps RCBOs for each circuit, so the final circuits (lighting in outbuilding and some socket outlets) will all be protected.
My original plan was just to put the entire supply on a 30mA RCBO in the house consumer unit, however my LABC have come back saying that I need to use 100mA RCD/RCBO in the house, and then put a 30mA RCD/RCBOs in the outbuilding to take into consideration discrimination.
The problem I have is the brand of consumer unit in the house doesn't have 100mA RCDs/RCBOs available, so it would probably mean fitting a separate unit, which might be tricky as there is limited wall space available. If however I am not required to protect the SWA, then I can just put that on an MCB, and put the RCD protection in the outbuilding consumer unit, which would solve all the problems...
It will be linking my main house consumer unit to one in a brick outbuilding, which will have a 30mA RCD main switch or perhaps RCBOs for each circuit, so the final circuits (lighting in outbuilding and some socket outlets) will all be protected.
My original plan was just to put the entire supply on a 30mA RCBO in the house consumer unit, however my LABC have come back saying that I need to use 100mA RCD/RCBO in the house, and then put a 30mA RCD/RCBOs in the outbuilding to take into consideration discrimination.
The problem I have is the brand of consumer unit in the house doesn't have 100mA RCDs/RCBOs available, so it would probably mean fitting a separate unit, which might be tricky as there is limited wall space available. If however I am not required to protect the SWA, then I can just put that on an MCB, and put the RCD protection in the outbuilding consumer unit, which would solve all the problems...