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Re: [OT] : wiring sockets ??
- Subject: Re: [OT] : wiring sockets ??
- From: "Marcus Warrington" <marcusw@xxxxxxxxxxx>
- Date: Thu, 21 Jul 2005 08:09:17 +0100
Mmmm.. interesting. My leccy bills have always seemed very high and I
wonder
if the spark who rewired our house used very long runs and our house now
drinks electricity for fun ?
How would someone measure this voltage drop ? Presumably measure the
volts at the consumer unit trip switch and then measure at the furthest
plug socket ?
Marcus
>From: Richard Malcolm-Smith <rich@xxxxxxx>
>
>Martin Wonders wrote:
>> The cable rating is also dependant on the method of installation,
if the
>> cable runs through
>> insulation, is grouped with any other cables along its run, runs
through
>> areas of high temperature etc it needs to be derated as they all
have a
>> bearing on the current carrying capacity of the cable.
>>
>> The length of the cable determines the voltage drop which should
not be
>> greater then 9.2v on a 230v circuit
>
>Also keep in mind that any voltage drop after the meter is power that
you have
>paid for being wasted.
>
>I think the payback on going 4mm instead of 2.5 on a water heater
worked out to
>be about 4 years when we worked it out, and powers gone up since then.
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