enblethen wrote:
Yes, the NEC covers RVs in Art 551. Park models are under Art 552. Mobile homes are under Art. 550.
They also are suppose to follow SAE specifications.
I just got out my copy of the NEC and 551.1 says "The provisions of this article cover the electrical conductors and equipment
other than low-voltage vehicle circuits or extensions thereof, installed within or on recreational vehicles ...".
Additionally, I don't think Art. 200 applies to low voltage circuits either.
My copy is several years old so maybe things have changed.