R
robsparx
I am wiring an outbuilding, to be used as an office at the moment. I am nearly at the stage of running the supply out to it from the main house.
The main house has a TT supply. Would the correct way to do it be to use a 63a 100ma time delayed rcd to protect the swa supply, and 30ma protection in the outbuilding CU?
Also as far as I can understand, I dont HAVE to put a seperate earth rod at the outbuilding. It isn't too far from the existing rod anyway. Am I right in saying this?
I would probably just put the rod in anyway if that would make it extra safe and give me lower Ze readings, but there isn't anywhere really to put it. Outbuilding is surrounded by tarmac
The main house has a TT supply. Would the correct way to do it be to use a 63a 100ma time delayed rcd to protect the swa supply, and 30ma protection in the outbuilding CU?
Also as far as I can understand, I dont HAVE to put a seperate earth rod at the outbuilding. It isn't too far from the existing rod anyway. Am I right in saying this?
I would probably just put the rod in anyway if that would make it extra safe and give me lower Ze readings, but there isn't anywhere really to put it. Outbuilding is surrounded by tarmac