Sub Mains

[Andy Trow]

Hi all,

I'm quoting to change a CU in a large house and from this they want a feed to an annex with a small kitchenette and a bedroom for guests etc. the annex will have it's own CU but still on the same meter as the main house. I cant find any info regarding the size in the feed needed to the annex. it will be SWA through a 3 meter long duct. Any info is appreciated.

Thanks 

Andy

 

[Andy™]

the size would depend on your design & cable calculations...

 

[ProDave]

It would just be designed and sized like any other circuit, which of course you know how to do don't you?

 

[SPECIAL LOCATION]

It would just be designed and sized like any other circuit, which of course you know how to do don't you?

As the "Sir Dave of twatt" said........

Arn't ALL cable sizes calculated in a similar manner?????

opcorn

Or have they changed the rules again???

:C