50/30 amp RV Park standards?
Here's an ignorant question for you. When an RV park advertises 50 amp and 30 amp at the posts, how much total power is available at the post? Is the 30a tied to the 50a, so you still only have 50a ...
Forum Discussion
pugslyyy wrote:
The 30A will be tied to one of the 50A legs. The pedestal should have a total of 100A - 50A x 2.
Not sure about that. The 50A will have two 50A legs, 12,000 watts.
I've yet to see a 30A tied to a 50A leg at the pedistal after the 50A breaker. I leave the 50A breaker off, and turn on the 30A and still get power, So the 50A breaker is not feeding the 30A outlet.
I would suspect there is one 3 wire pair feeding the pedistal, what isn't known is it's upstream breaker at the panel
The limit will be whatever the breaker feeding the pedistal is or the combined breaker limit at the pedistal, whichever is lower. That could vary all over the place depending on layout. It could be 50A, but I'll bet it is typically higher. The last thing the CG wants is people popping a 50A main panel breaker instead of a 50A breaker at the pedistal. If they are both the same Amp rating, on overload it's a crapshoot as to which will pop first.
So in theory the max you could get if the feed allows it is:
50A two 120V legs 6,000W each =12,000W
One 30A 120V leg 3600 watts
one 20A 120V leg 2400 watts
total 19KW!
