Too funny. Ran into a neighbour camper house builder electrician guy in a provincial park probably 10 or 12 years ago. He was quite adamant about the voltage at his 30 amp connection was 220 volts (plus or minus) and that all campgrounds were like this. I told him i would bet him all the cash he had on him that it was 110 (plus or minus). Made a little pocket change that day. :)