max length for main cable supplying single phase sub board

[bobby101]

hi all is there a regulation for a single phase board in a domestic property which is going to supply (from mains) a seperate sub board for an additional installation.ie a garage,
is there a minimum requirement for size and length of new mains cable supplying the new sub board,also does having a garage built onto exsisting property count as a new build

 

[pushrod]

Volt drop... and check with LABC

 

[DurhamSparky]

agreed.. ^^^ check voltdrop

if your building a garage (extension) then YES in the eyes of LABC its a new build!