Neutral Fault

[dsmail]

Hi, I am not an electrician. Wiring in my Victorian semi is the noramal mixture of newish, oldish and very oldish!
I've been testing the 13 amp sockets with a Martindale socket tester and everything checks out fine apart from one circuit that shows a "neutral fault" 13Amp sockets appear to work fine on this circuit. Any ideas what this could be? The cable used in this circuit is rubber based and although old seems to be in reasonably good order considering it's probably from the 60s

The other part of this problem is that this circuit has been extended to supply a couple of extra sockets in a new conservatory and the same problem is obviously to be seen in the extension (the fault existed before the extension) This is Part P territory of course so needs to be corrected and for any underlying safety issues. Is it likely that Part P would never be granted as the supply cable to the existing house circuit is so old??

I'd appreciate any comments.

Thanks

Dave

[Gavin]

The best thing to do would be, Get all the rubber cable stripped out and replaced with pvc.
Its passed its best now and who knows what might happen without a neutral present.

[dsmail]

Yes, you're right, the old rubber cable has to go. The neutral must be present otherwise the circuit wouldn't work at all in yet it does! Possible earth to netral leak ,who can say with old cable I suppose.