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Hi I have a domestic installation to rewire and the main incoming fuse is 80 amp so i am using 16mm double insulated tails, is the main earth size with this 16mm or 10mm ? Thanks
Discuss size of earth on 16mm mains tails in the UK Electrical Forum area at ElectriciansForums.net
If you are referring to the typical UK insulated and sheathed singles used as meter tails these don't include a protective conductor in the cable. The norm would be to run a 16mm^2 Earthing conductor alongside.Hi I have a domestic installation to rewire and the main incoming fuse is 80 amp so i am using 16mm double insulated tails, is the main earth size with this 16mm or 10mm ? Thanks
ye if it was a 100 amp main fuse i would install 25mm double insulated tails with a 16mm earth, so if it is an 80 amp fuse then i know i can use 16mm double insulated tails but is a 10mm earth sufficient or does it have to be a 16mm?If you are referring to the typical UK insulated and sheathed singles used as meter tails these don't include a protective conductor in the cable. The norm would be to run a 16mm^2 Earthing conductor alongside.
If selected (as opposed to calculated) then 16mm^2 is required. As I stated, 16mm^2 is the norm.ye if it was a 100 amp main fuse i would install 25mm double insulated tails with a 16mm earth, so if it is an 80 amp fuse then i know i can use 16mm double insulated tails but is a 10mm earth sufficient or does it have to be a 16mm?
so cpc being minimum of half the live conductor size does not apply here then?If selected (as opposed to calculated) then 16mm^2 is required. As I stated, 16mm^2 is the norm.
so cpc being minimum of half the live conductor size does not apply here then?
ye if it was a 100 amp main fuse i would install 25mm double insulated tails with a 16mm earth, so if it is an 80 amp fuse then i know i can use 16mm double insulated tails but is a 10mm earth sufficient or does it have to be a 16mm?
Reply to size of earth on 16mm mains tails in the UK Electrical Forum area at ElectriciansForums.net
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