RV Outlet NEC Code Question

enblethen wrote:
If you look at 551, you will find that you must also follow parts I, II, III, IV and V of the code.

Unfortunately, it's a little more complex that that, as some sections supercede others, particularly when it comes to feeder conductor calculations, and things like installations AMI and the opinion of the AHJ will directly impact individual installations. The larger issue is that RV supply work is much different that residential work, which is the source of a lot of the uniformed "advice" provided here. Take the multiple "experts" that claim that you need a ground rod(S) and that it needs to be treated as a sub-panel. Neither are correct, and in fact, a code committee revisited the grounding issue during this most recent cycle and specifically determined that a rod at each "Stand" was not desirable, or required.