Improve a bodged garage supply.

[SparkusMaximus]

cut out 100a, main switch in CU 100a, but was thinking of putting in a little 1 way garage supply, However I think I will jsut keep it in the mian C/U.

 

[andyb]

Not for inductive loads like showers or water heaters as a final circuit, but when we are doing an installation like this with other types of circuits then I would take diversity into account ................otherwise most modern homes would be having 150+amps supplies to them all.

Malcolm, I think you must be getting too much sun in Saudi Arabia.

Showers & water heaters are resistive loads.

 

[malcolmsanford]

Malcolm, I think you must be getting too much sun in Saudi Arabia.

Showers & water heaters are resistive loads.

quite right I have inductive on the brain ................... unless the shower as a big motor pump in it ...........teach me to be working on motor design and skiving off on here

 

[malcolmsanford]

cut out 100a, main switch in CU 100a, but was thinking of putting in a little 1 way garage supply, However I think I will jsut keep it in the mian C/U.

To be honest if I don't like putting 50amp or 63amp MCB into a domestic board, IMO it is loading them up.

I would personally henly block the tails from the meter to the CU and fit a 60 amp switch fuse and if you wanted to you could fit a smaller fuse. Then run your 10mm^ SWA into a small garage CU with a 63amp 30mA RCD protecting the circuits there.