Just curious.....is the NEC even applicable to a mobile home? Does it apply to an RV?
I ask because UPC and state/city plumbing codes do not apply to mobile homes, nor do city permit requirements. At least here in CA, mobile homes are governed by the vehicle code onlyl.
Yes see these two articles
ARTICLE 550
Mobile Homes, Manufactured Homes,
and Mobile Home Parks
ARTICLE 551
Recreational Vehicles and Recreational
Vehicle Parks
The things the NEC does not govern but there are NFPA publications that do govern part of these.
(B) Not Covered. This Code does not cover the following:
(1) Installations in ships, watercraft other than floating buildings, railway rolling stock, aircraft, or automotive vehicles other than mobile homes and recreational vehicles
FPN: Although the scope of this Code indicates that the Code does not cover installations in ships, portions of this Code are incorporated by reference into Title 46, Code of Federal Regulations, Parts 110–113.
(2) Installations underground in mines and self-propelled mobile surface mining machinery and its attendant electrical trailing cable
(3) Installations of railways for generation, transformation, transmission, or distribution of power used exclusively for operation of rolling stock or installations used exclusively for signaling and communications purposes
(4) Installations of communications equipment under the exclusive control of communications utilities located outdoors or in building spaces used exclusively for such installations
(5) Installations under the exclusive control of an electric utility where such installations
a. Consist of service drops or service laterals, and associated metering, or
b. Are located in legally established easements or rights-of-way designated by or recognized by public service commissions, utility commissions, or other regulatory agencies having jurisdiction for such installations, or
c. Are on property owned or leased by the electric utility for the purpose of communications, metering, generation, control, transformation, transmission, or distribution of electric energy.