Forum Discussion
DrewE
Dec 03, 2014Explorer II
I agree, most likely campground pedestal or possibly shore power cord. Be glad you didn't have a 50A connection with loads on both sides of the split phase circuit—you'd have a high voltage on one side and a low voltage on the other and quite possibly some destroyed appliances. On a 30A circuit, you just have no power.
You could check the shore power cord by disconnecting all power from the RV (turning off the inverter and/or disconnecting the battery) and shorting the neutral to the ground at one of the RV outlets, and then checking the resistance at the plug. It should be essentially a short circuit no matter how you wiggle the wires around. I'm assuming the transfer switch for the inverter would revert to shore power when the battery is disconnected; if it did not, you would have no power if you plugged in with the battery discharged, which seems unhelpful.
The voltmeter measurement is bogus, and probably due to capacitive or inductive coupling or to very slight leakage, depending on where the voltmeter is measuring its voltage.
You could check the shore power cord by disconnecting all power from the RV (turning off the inverter and/or disconnecting the battery) and shorting the neutral to the ground at one of the RV outlets, and then checking the resistance at the plug. It should be essentially a short circuit no matter how you wiggle the wires around. I'm assuming the transfer switch for the inverter would revert to shore power when the battery is disconnected; if it did not, you would have no power if you plugged in with the battery discharged, which seems unhelpful.
The voltmeter measurement is bogus, and probably due to capacitive or inductive coupling or to very slight leakage, depending on where the voltmeter is measuring its voltage.
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