On Fri, 19 Nov 2004 11:16:55 GMT, Alan wrote:

snip

So, I'm wondering of the accuracy of the electricity meter which was
replaced about a year ago. Any tests I can do to confirm?
I will have a better idea in about a week of power usage of equipment but to
me I just can't see where a total of around 31 kwh per day is going!

You don't say - is it a solid-state meter, or an old-style with a
rotating disc? If it's disc type, they are moderately easy to check with
a bit of simple arithmetic, the name plate will have a figure for the
number of revolutions per kwh.

Switch *everything* off at each individual appliance - not just flipping
off the consumer unit - and see if the disc is still revolving. If it
is, then either there's something still on that you've forgotten about,
or the meter is faulty.

If the meter stops with everything switched off then switch on one
single appliance with a bit of load, like a 3kw fire for a few minutes,
and take an *accurate* timing for, say, twenty revolutions of the disc.
You should then be able to work out by simple arithmetic whether the
meter is running fast or not.

Say the name plate gives 80 revs per kwh. You have 3kw of load, so in 60
minutes you'd expect 240 revs. Simple ratio will tell you how many kwh's
your 20 revs represents.

If it's a modern solid-state meter, sorry, but you've got to rely on the
company testing it.

--
the dot wanderer at tesco dot net