Originally Posted by Terier
I found that an electric heater and air dryer on at the same time will do it as well.
Yes, that should trip breaker(s) if they function correct and trip before the wiring is damaged. Many times in 30 amp RV's, all of the 120 volt outlets are on the same subcircuit, controlled by a 15 amp breaker (sometimes 20 amp).
A lot of electric space heaters are 1500 watts, as well as hair dryers ranging from the 1000 to 1875 watt range on high heat. Just say for instance you were using a 1500 watt hair dryer to boot.
1500 watt hair dryer + 1500 watt space heater = 120 volts + 25 amps
As you see, running both of them at the same time requires 25 amps on the same circuit....... well over the 15 amp or 20 amp circuit breaker. You should have to pick to operate one or the other at the same time.
It also comes close to the total 30 amps for the RV, even if they weren't on the same subcircuit. We haven't even added in the air conditioner, microwave, fridge on electric, any other things plugged into electrical outlets like television, converter, or the water heater using the electric heating element (which is 12 amps there).
Sorry for the thread hijack, and I will shut up now. I just wanted AshnJim to be aware and prepared for what may happen when running the hair dryer so they can practice power management if they don't already with their current trailer.. Hope ya are not mad at me.