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?