On Thu, Apr 07, 2011 at 02:03:41PM +0100, Ian W. Wright wrote:
> What about the old idea of putting a light bulb in series
> with the mains? Would this have a useful effect?
It has a large positive temperature coefficient, so admits a large
initial surge, then limits the current to a much lower value once
heated. As you've probably figured already, that's the opposite of what
we're looking for when trying to limit inrush currents.
It's sometimes used to protect against fault currents while
experimenting with circuits which do no draw enough to drive the
filament far up the PTC curve while operating properly.
Erik
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