lyn williams wrote:
> Thats an extremely hazardous game....the inductance you get from the
> coiled extension cords can give you an inductive ring that can pop
> your bridge rectifier. The the extension cords become either your
> fuse....or your ignitor....whichever occurs first.
There is some inductance, but since the hot and neutral wires are paired
there is an equal an opposite current flowing in them. The inductive
field mostly cancels, so there is little change in inductance whether it
is coiled up or laid out straight.
But... a bad-boy charger draws all its current at the peak of the AC
line cycle. The average may be 15 amps (so your breaker doesn't trip),
but the peak can be over 100 amps! This causes cords, plugs, and other
parts to get hot! Coiling up the cord is a good way to concentrate all
the heat in one spot. Bob Rice calls them "stench cords" for good reason
-- they can melt, short, and even start a fire!
--
Ring the bells that still can ring
Forget the perfect offering
There is a crack in everything
That's how the light gets in -- Leonard Cohen
--
Lee A. Hart, 814 8th Ave N, Sartell MN 56377, leeahart_at_earthlink.net
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