Originally Posted by cavie
Neutral and grounds are separate at the pedestal. For 50 amp 240 you must have 2 hots and a neutral and a ground. This must follow all the way back to you RV breaker panel.
for 30 amp 120 service you must have 1 hot 1 neutral and one ground.
Please use the quote button in the future so see know how you are replying to. People can be typing and responding in front of you. Happens all the time.
And just to add... when powering a 50a rig from 30a 110v circuit (three wire - hot, neutral, ground) the adapter splits the hot lead to two wires giving the hot, hot, neutral, ground needed to connect to RV...
Most rigs donít truly use 220v service - so this works...
Any true 220v appliances would not receive power this way.
Many older 220v outlets are hot/hot/ground and cannot be safely used/adapted to an RV (without running a separate neutral).