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trader_4 trader_4 is offline
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Default Electrical advice-30A circuits

On Tuesday, January 31, 2017 at 10:14:05 AM UTC-5, trader_4 wrote:


just for fun somone hangs a big picture and causes a short on a 30 amp circuit with 30 amp breaker.......

sounds like a excellent way to start a fire


IDK that it's much different than doing the same thing with a 20A
circuit. You'd get a bit more arc for milliseconds, but it doesn't
seem that much worse at 30A.



Forgot that it's also 220V, instead of 120V, so I guess the available
energy for arcing is 3X what it is here with a 120V, 20A circuit,
so I agree, you have a point. How much more likely that is to start
a fire in the milliseconds before the breaker trips, IDK. It would
depend on what's around to ignite.