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Electrical load mystery??? (JayJ, BobF, Henry...)

Posted by Wick on January 7th, 2000 10:30 AM

Hey guys, here's a little mystery which I quite figure out.
Using the formula(s) from a few posts below (one of which I posted),
I did some calculations out in my garage/workshop which is all on
one breaker (15 Amp) and came up with the following.

1500W Space Heater, 12.5 Amps (1500/120=12.5)
5.5 Amp Refrigerator (marked on fridge)
40W Florescent Bench Light, 0.33 Amps (40/120=0.33)
Total 18.33 Amps

Here's the mystery, all three were running (including the fridge's
compressor) so WHY (although I'm not complaining) doesn't the
circuit breaker trip? Does the electrical industry build in some
kind of buffer on circuit breakers? Anyone have the answer?


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