Not in this case:It's just that for longer than 3m, the DNO stipulate a fuse switch
unless the CU was moved several m after that was installed....
Not in this case:It's just that for longer than 3m, the DNO stipulate a fuse switch
Probably not literally, although they would probably have noticed if the distance from meter to CU was 'unusually long'.they wouldn't have measured the length of the tails though would they??!!!
An interesting thought - but I didn't think that DNOs 'read', took any notice of or worked to, BS7671.I think it is a misreading of 434.
It's certainly not (or, at least, was not in the past) a complete myth since, over the years, I have seen several instances of a supply (cutout) and meter being moved (during refurbishments) such that the meter-CU distance was quite long, with the DNO saying that they would not connect the moved supply until an electrician had installed a switch fuse.No but as TTC said "It seems to me that this 3 metre “requirement” is of much greater importance to the burghers of this forum, than to the DNO!" perhaps it's just another myth because of someone misreading 434.
I can't say that I can recall them ever having cited BS7671, or any other regulations, as the reason ...So, they do refer to BS7671, possibly misinterpreting 434, which governs the consumer's tails ...
I suppose it could be real rules/regulations, rather than ones they had "made up". However, as you say, it seems to become particularly odd/pointless if (as I think is commonly the case) the fuse in the switch-fuse is of the same rating as the cutout fuse.- or they make up their own rules and demand a fuse even if it's the same rating as their own for some unknown reason.
Which bit of 434 do you think can be misread to create a 3m limit?No but as TTC said "It seems to me that this 3 metre “requirement” is of much greater importance to the burghers of this forum, than to the DNO!" perhaps it's just another myth because of someone misreading 434.
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