On Sat, 8 May 2004 22:44:28 +0100, Can2002 wrote:

snip


I rang EDF energy again and they sent someone out yesterday afternoon.
Strangley all he did was disconnect the main fuse and measure the voltage
coming in to the meter, which was 247V. He drew a conclusion from this that
their line was OK and it must be my wiring!!

Their first attempt will be to try and fob you off.

When I pointed out that when I
measured the voltage with minimal load it showed 247V too, and that it was
only when under load that the voltage dropped, he basically shrugged his
shoulders. The only suggestion he could make was that the high and low
power devices must be running off the same MCB, but I've already confirmed
this is not the case.

The intial contact from them is usually a craftsman. He won't know that
much about the technicalities of the supply from the substation to your
main fuse. What he should definitely have done was to put a screwdriver
on the terminals of the main fuse, just to make doubly certain that
there was no loose connection there.

I'm not sure what they're going to do next, but it basically seems as though
some link between the substation and my internal wiring has higher
resistance.

'Phone them back again - make sure you get a name - tell them that the
problem persists and please could you have a recording voltrmeter
installed.

Earlier postings from others seem to suggest it's the supply to
my house, but I guess I should try to test the resistance between the main
isolator and my consumer unit. Does this sound like a reasonable idea?

Can't remember how much info you've given - are you in a rural or urban
location? I seem to think you said you thought you had an underground
supply coming in, but do you have overhead cables out in the street?

I'd leave it alone now, and tell EDF that you think there's a loose
connection somewhere on their system and what are they going to do about
it.