BobRip
Elite Member
MossRoad said:Yeah. The cord will burn up before the breaker will trip in the circuit panel. That is the cause of many house fires, with regards to lamps and small space heaters. Where I work, there are several dozen space heaters. Those things will burn up the cord or melt power strips without tripping any breakers.
Anyhow, I don't want to hijack the thread, but since we were discussing wiring a garage and shop, I thought it fit.![]()
Not a hijack Moss. The NEC is not perfect, but I think for most applicances a short would make the breaker trip before the cord burned up. It's the over load, saying running a cord rated for 6 amps at 20 amps that is the biggest issue. I put a 15 amp breaker on my table saw even though the 20 amp breaker would trip in 6 seconds if I stalled the saw. With the 15 amp it would take about 2 seconds. If I can't clear the stall in 2 seconds, I would just as soon the power was removed. Six seconds seemed like a very long time. So, if you can downsize the breaker so it trips in a reasonable time, you are safer and probably protect the motor a little better. Yes, the main purpose of the NEC is to prevent fires and not protect equipment from damage. I like to do a little better. Sorry for the hijack. (Can you hijack your own thread?)
Oh, our company banned all of the open element electric heaters and replaced them with much lower wattage oil (liquid) filled heaters because of safety issues.