Forum Discussion
wolfe10
Oct 07, 2014Explorer
naturist wrote:
50 amp RV service is really two separate 120 volt, 25 amp circuits, as I understand it. This would suggest you only need a tester capable of drawing 25 amps. 25 amps at 120 volts is 3,000 watts. So get two 1500 watt heaters (probably run you $15-$20 at Wallys -- or heck, you probably have a couple laying around already, as that is the "standard" small space heater wattage). Plug 'em in together on one branch of the circuit, then the other, and if the circuits both support the heaters going full blast for, oh, say, one minute, you got 50 amp service.
Totally INCORRECT. An RV 50 amp outlet has TWO, repeat TWO, 50 amp breakers. So 50 amps on L1 and 50 amps on L2.
Check with voltmeter:
Two outer straights are hots, center straight is neutral and center round is ground.
SO:
From either outer straight to center straight or center round is 120 VAC.
Outer straight to outer straight is 240 VAC.
Center straight to center round is 0 VAC.
THEN, and an important THEN, monitor voltage while he turns on loads-- he will NOT exceed the 50 amp RV capacity with a "regular" RV (excluding some bus conversions).
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