Hello
I am currently rewiring an old house which has tails in basement from meter going into a 60A fused isolator which feeds all the existing circuits from a fusebox in an inconvenient location, to be made redundant.
I need to send power to both a consumer unit in the basement, and a separate CU on the ground floor which will feed circuits at ground level and upstairs level.
DO I:
Treat Ground Floor CU as a sub main, therefore run SWA/ other from Basement to upstairs ? The cable I intend to run above the plasterboard ceiling, poss fixed to the joists
OR
Go from isolator straight to GF CU and send back to basement using that as the 'sub'? The basement may be let to tenants therefore upstairs inhabitants may prefer if possible not to have their CU running off a breaker in the basement.
OR
Feed both CUs independently from the isolator switch/ fix up a 2nd isolator switches?
What is the better option?
Then- can I up the fuse rating in this isolator switch? I'm concerned that the maximum demand may exceed 60A if it was upstream of both CUs.
Anyone got any ideas?
Many thanks,
Nick
I am currently rewiring an old house which has tails in basement from meter going into a 60A fused isolator which feeds all the existing circuits from a fusebox in an inconvenient location, to be made redundant.
I need to send power to both a consumer unit in the basement, and a separate CU on the ground floor which will feed circuits at ground level and upstairs level.
DO I:
Treat Ground Floor CU as a sub main, therefore run SWA/ other from Basement to upstairs ? The cable I intend to run above the plasterboard ceiling, poss fixed to the joists
OR
Go from isolator straight to GF CU and send back to basement using that as the 'sub'? The basement may be let to tenants therefore upstairs inhabitants may prefer if possible not to have their CU running off a breaker in the basement.
OR
Feed both CUs independently from the isolator switch/ fix up a 2nd isolator switches?
What is the better option?
Then- can I up the fuse rating in this isolator switch? I'm concerned that the maximum demand may exceed 60A if it was upstream of both CUs.
Anyone got any ideas?
Many thanks,
Nick