alt.energy.homepower

In article < @ >,
"...........Rob" wrote:

> On Aug 30, 6:00 pm, "Martin Riddle" wrote:
> > Unlikey, even if you use 22awg, you would need quite some length at 1A to
> > get 6v.
> >
> > Cheers
> >
> >
> >
> > "Ray King" wrote in
> > messagenews: $ @bignews6. ...
> > > Have you considered the bulb is trying to put out 3 watts at say 6 volts.
> > > The other 6 volts could be the voltage drop in
> > > the wire. The 6 watts at 6 volts is 1 amp.
> > > This would account for the higher current. Incandescent bulbs are some
> > > what current sources.
> >
> > > Ray
> >
> > > "Martin Riddle" wrote in
> > > messagenews: $ @trndny02...
> >
> > >> "...........Rob" wrote in
> > >> messagenews: @ ...
> > >>> Hi all,
> >
> > >>> Hooked up two, 3 watt 12v cfl's. Should be a 6 watt draw, or
> > >>> amps (give or take a hair) @ 12 volts. I put a dvm in series (on
> > >>> Amps) and low and behold their drawing amps @ 12 volts, or
> > >>> watts. Double checked with a clamp on ammeter. Is there somthing I
> > >>> still don't understand?
> > >>> ...........Rob
> >
> > >> You need to use a scope to determine the correct current draw.
> > >> The current spikes are probably fooling the DVM.
> >
> > >> Cheers- Hide quoted text -
> >
> > - Show quoted text -
>
>
>
> 10awg wire. Bout 40 ft round trip. Day off tomorrow, will measure
> voltage at lights.
>
> Also I'll check draw in a very short loop, a foot or two of 10awg,
> battery, and a socket, see if
>
> it's still 6w per bulb. Still, lots of light, little power.
>
> ..Rob

You would need about 150 amps to get a 6 volt drop across 40 feet of #10
wire. Six volts divided by ( ohms per foot times 40 feet).

Try putting a capacitor across the meter leads. If you see a significant
drop in the indicated current there may be a large high frequency
component that is fooling the meter.

--
Mike

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