30 amp is really 20amp

Harvey51 wrote:

WesternRVparkowner wrote:
You find the same thing if you go to your electrical panel in your house and add up the all the breakers. Their value will far exceed the 200 amps your service is called

It works okay in a house because you never use all the outlets at the same time. But on a hot day in an RV park everyone will want the full 30A. A loop of ten sites will need a 300A breaker or perhaps two lines of 150A.

It may make logical sense, but it is not true. The national electrical code has a demand calculation that allows for the sum of the potential services to exceed the breaker rating and still be in code. I don't have the formulas for the 30 amp services since we do not have 30 amp services, but it absolutely in code to have seven 50 amp services served from a 200 amp main. We do it and even when we are completely full with big rigs on the hottest of days, we have never had a main trip.