I am upgrading my 5th wheel to 50 amp before we had south in January. I have purchased a 50 amp panel with more circuits available for both 110 V and 12 v dc and plan to rewire a lot of the circuits to isolate them. I have the new 50 amp outside connector for the power cord to attach to the trailer. What I need to know is the size of the wire that I need to run from the outside connection to the new panel. One question that I have is the electrical post at the campgrounds labeled 50 amp are these made up of two 25 amp circuits or is each side 50 amp. If they are 25 amp each side, I can use 10/3 with ground from the connection to the panel. If, they are an actually 50 amp both sides that 8 gauge entrance type cable is needed. Can someone clue me in on this? We are upgrading our 2000 unit for both clothes washer and dryer. Last winter, without these, the post breaker, 30 amp, would kick off with the A/C going and using just about anything else 110. Thank you.