Magic Number (microamps) for a fire...?

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Magic Number (microamps) for a fire...?

Liquid paint application w/Bells... What's the magic number (in microamps) where an arc or fire will occur?

2007-03-22 03:25:45 · 3 answers · asked by ? 4 in Science & Mathematics ➔ Engineering

3 answers

At 2000 volts @ 200 amps arcing will occur. mm
6000 volts @ 500Amps, 1/2 inch
6000 volts @ 3000 Amps 1 inch

2007-03-22 14:42:07 · answer #1 · answered by John P 2 · 0⤊ 0⤋

Depends on the resistance energy=I^2*R. For a spark or an arc you have a very large resistance, say air resistance, the I most probably will be small micro amps!

2007-03-22 14:37:49 · answer #2 · answered by Mesab123 6 · 1⤊ 0⤋

Fires don't start because of micro amps. They start because of heat. And heat can be caused by an arc and and arc is caused by voltage.

2007-03-22 10:36:24 · answer #3 · answered by Gene 7 · 0⤊ 0⤋