R
rebelwarrior
Hello, are there any helpful sparks out there who will answer a question for me? I want to put a 2 way CU into a garage for lighting and a few 13amp sockets but I also want a 32 amp socket for occasional use of a welder. I'm doing the first fix myself as I have the ceilings down anyway.
My plan is to come off the non-RCD protected side of the house CU with a 40amp MCB. I'll run 6mm T&E to the outside via an IP66 junction box on the wall and then 6mm SWA to the garage (voltage drop is not a critical). As I understand it this should comply (even without RCD protection at source) so long as I protect the T&E with an earthed galvi conduit wherever it is less than 50mm deep (even if in a safe zone). Can anyone confirm this?
In the garage I will fit a 2 way RCD protected CU with 16 and 6 amp MCB's, which I understand should give reasonable discrimination with the 40 amp at source, but is it acceptable to fit a large switch before the garage CU to divert the entire sub main to a 32amp socket for the welder. I realize I would have no lighting or heater when welding, but would it be acceptable under the regs to do this?
Regards
Chris
My plan is to come off the non-RCD protected side of the house CU with a 40amp MCB. I'll run 6mm T&E to the outside via an IP66 junction box on the wall and then 6mm SWA to the garage (voltage drop is not a critical). As I understand it this should comply (even without RCD protection at source) so long as I protect the T&E with an earthed galvi conduit wherever it is less than 50mm deep (even if in a safe zone). Can anyone confirm this?
In the garage I will fit a 2 way RCD protected CU with 16 and 6 amp MCB's, which I understand should give reasonable discrimination with the 40 amp at source, but is it acceptable to fit a large switch before the garage CU to divert the entire sub main to a 32amp socket for the welder. I realize I would have no lighting or heater when welding, but would it be acceptable under the regs to do this?
Regards
Chris
