Heavy-Duty Wiring Systems for Trailers 2032mm or More in Width at 24Vdc or 48Vdc
J3299
This SAE standard establishes the minimum performance requirements for electrical distribution systems for use in dollies and trailers in single or multiple configurations for 24Vdc and 48Vdc applications.
Rationale: The existing Trailer Wiring document, SAE J2174, is for 12V applications only.
This new Standard would pertain to higher voltage requirements.
