M
mark22
Help Please
I have installed a new supply to a garage. It is fed from a split board consumer unit in the house and is protected by an 80amp RCD.
I have installed a consumer unit in the garage which has a 40 amp RCD. (cu earthed via earth rod).
I carried out an RCD test and got the following results :
x1 27ms at 0 tripped garage
17ms at 180 tripped garage
x5 4ms at 0 tripped garage
7ms at 180 tripped house
My question is why does it only trip in the house on x5 at 180 and is the only way to resolve this by removing the circuit away from the rcd on the main board.
thanks
Mark
I have installed a new supply to a garage. It is fed from a split board consumer unit in the house and is protected by an 80amp RCD.
I have installed a consumer unit in the garage which has a 40 amp RCD. (cu earthed via earth rod).
I carried out an RCD test and got the following results :
x1 27ms at 0 tripped garage
17ms at 180 tripped garage
x5 4ms at 0 tripped garage
7ms at 180 tripped house
My question is why does it only trip in the house on x5 at 180 and is the only way to resolve this by removing the circuit away from the rcd on the main board.
thanks
Mark