Sub main advice for bedsits

[Dunx]

Hi,

Got to rewire 5 flats with new submains. Each is a 'single person' bedsit or one bed flat. All have electric cookers, no elec showers at present.... All flats are centrally heated and hot water is via a central tank [not great I know].

There will be a separate landlords supply for hot water, CH and common lighting. So I reckon allowing approx 10-12kw plus 9 for possible future showers. Say 20 kw x 4 = 80A apporox max demand. However, not sure about diversity and in an ideal world I would like to keep the sub main [which will be clipped direct around the walls] to 10mm 3 core.

I wondered if there is a higher rated type of SWA or similar that has a higher current rating than ordinary SWA 3 core...?

Ideas appreciated!

Dunx

 

[Andy™]

I wondered if there is a higher rated type of SWA or similar that has a higher current rating than ordinary SWA 3 core...?

Dunx

XPLE

but you need to ensure connections either end are rated to 90

 

[kme]

I think he was doing a rough conversion from KW to A, with the "X 4" bit mate.........

i.e. 20KW=80A (@4A/KW)??

 

[Andy™]

I think he was doing a rough conversion from KW to A, with the "X 4" bit mate.........i.e. 20KW=80A (@4A/KW)??

that makes more sense