The new electrical supply for our new building is installed on a wall next to the electrical pole, leaving us to get the cable about 15m across our garden to the building, where the consumer unit will be. (This was recommended by the powergrid team for cost reasons not to pay them for the trenching.)
We've got a trench dug and conduits laid but what size SWA will be suitable for the full 80A our supply fuse is rated for, since this cable is basically just extending the supply to the building?
I am thinking maybe 10mm2? We don't expect the demand to be anything like 80A but it seems to me the cable should not be rated lower than the fuse!?
We've got a trench dug and conduits laid but what size SWA will be suitable for the full 80A our supply fuse is rated for, since this cable is basically just extending the supply to the building?
I am thinking maybe 10mm2? We don't expect the demand to be anything like 80A but it seems to me the cable should not be rated lower than the fuse!?
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