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The tails may be matched to the fuse.The outgoing tails look a bit weedy - those will surely need replacing.
The tails may be matched to the fuse.The outgoing tails look a bit weedy - those will surely need replacing.
I may be wrong, but I think that DNOs (or 'the rules to which they work') regard 16mm² tails as adequate for 100A.My house has one, although the fuseholder is marked "100A" .... As I don't have electric heating or an electric shower, my maximum usage falls far below that. .... But I do agree that the tails in the pic look surprisingly small. .... mine are 25mm², obv.
As I've just written, even if one pays attention only to what is explicitly written in BS7671, then 16mm² singles are adequate with an 80A fuse, since it it gives the Method C CCC as 87A. However, as I said, if one 'estimates' the (missing from BS7671) 'in free-air' CCC for 16mm² singles, then that figures is 'as near to 100A as makes no difference' - so essentially OK with a 100A fuse.I read one of my years old threads yesterday which said 60A fuse in the max for 16mm (I think, maybe 80a). I think it could of been you who replied.
10mm² is adequate for 60A.I read one of my years old threads yesterday which said 60A fuse in the max for 16mm (I think, maybe 80a). I think it could of been you who replied.
10mm² is adequate for 60A.
Maybe, but it's always difficult to be sure from photos. In any event, as is often said here, many a flat is supplied with 10mm² cables.to my eye, the ones in the pic look more like 10mm than 16mm.
to my eye, the ones in the pic look more like 10mm than 16mm
Hard to tell without being there, but to me the outgoing tails look roughly two sizes smaller than the incomers. If the incomers are 25 then 10mm2 out might not be a problem depending on the fuse size, but if the incomers are 16 then it would have to be under a fusing size commonly used by the DNOs to give adequate protection to 6mm2 tails.to my eye, the ones in the pic look more like 10mm than 16mm.
But they are downstream of the meter, so they are the consumer's, not the DNO's.
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