[TCML] pig Jacobs
Dave at davidspeckmd.org
Tue Nov 27 16:06:46 MST 2007
In the realm of the power levels that are being described here -- 50
amps at 240 VAC, you should never assume that any critical part will
fail in a favorable way. This sort of circuit must be controlled by a
reliable, well overrated industrial contactor that can be remotely
controlled in case of an emergency situation, and the breaker driving it
must also be suitable rated.
Circuit breakers, switches, and relay contacts have been known to weld
themselves closed during high amp faults, and you don't want to be
trying to pull a dryer plug out of the wall when it's carrying 12
kilowatts of power.
David baehr wrote:
> Yea, 50+ amps is high for a JL , but, if ya wanna see the big , thick plasma ( ? ) , ya gots too :-)
> Oh, if the element fails , this would be an 'open' circuit , woulnt it ?? it would just turn off ?
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