I find it a bit odd how the NEC doesn’t seem to include mobile vehicles and trailers, like the OP has described, yet when it comes to mobile homes, 550.4,[A] also addresses mobile homes not intended as a dwelling unit and then goes on to list some examples of these other uses, like contractor onsite offices, banks, clinics, mobile stores…etc., and how they are not required to meet the provisions of this article pertaining to number or capacity of circuits required. Aren’t these mobile homes for other than dwellings also towed or transported over public roadways as well?
