Dear Experts,
I have a 32A ring circuit. If I break it at some point, turning it into a radial that forks at the CU, and replace the MCB with a 20A one, is that always OK?
I think it's always true that the CSA of the cable will be sufficient, but I wonder if there could be voltage drop or earth impedence issues in some circumstances.
(I'm considering doing this temporarily while I do some building work.)
I have a 32A ring circuit. If I break it at some point, turning it into a radial that forks at the CU, and replace the MCB with a 20A one, is that always OK?
I think it's always true that the CSA of the cable will be sufficient, but I wonder if there could be voltage drop or earth impedence issues in some circumstances.
(I'm considering doing this temporarily while I do some building work.)