House wiring? (slightly off-topic)
harry
harrybissell at prodigy.net
Wed Dec 27 23:05:53 CET 2000
Hey Robert:
Sorry but you are thinking about this wrong. Lightbulbs are similar to
resistors...
if you cut the voltage in half. the resistance stays (pretty much) the same...
and
the current gors down also. So you would only get about 25W from your example.
It is true that the filiment resistance changes a LOT with terperature.... so
its
not this easy. But in general lower voltage means lower power - longer life.
H^) harry (on list in case anyone else confused on this point ;^)
Robert Donker wrote:
> You have a relatively new house showing what is an extraordinary behavior on
> your AC. This is more likely a low AC voltage (remember, a 100 W bulb @ 100
> volts draws 1 amp, a 100 @ bulb @ 50 volts draws 2 amps) causing excessive
> current in the lights. This same effect IS causing excessive load on ALL the
> electrical equipment in your house and you should be VERY concerned.
> Changing bulbs with this frequency means you are getting about 10% of the
> actual life of the light (usually 2000 hours of continuous operation). I
> suspect you have completely lost 1/2 your circuit or completely lost your
> ground. This can be dangerous and you need to have it checked by a qualified
> (and bonded) electrician. This is not a DIY thing. Unless you're at least a
> journey man level electrical technician.
>
> -RPD
>
> >Hello everyone,
>
> > I mainly lurk here and try to absorb as much info as I can. A lot of it
>
> >tends to bounce right off though.. ; ) In the near future, I intend to
>
> >post some questions pertaining to modifying my small but growing modular,
> but
>
> .
>
> .
>
> .
>
> > Any help or thoughts are apreciated,
>
> > Andrew Sanchez
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