Electrical systems and equipment installed in trailer courts shall be
of an approved type and installed in accordance with the provisions of the
National Electrical Code.
The system and exposed non-current-carrying metal parts of equipment
and conductors shall be grounded in accordance with the provisions of the
National Electrical Code. The grounded conductor of the trailer supply system
shall be effectively grounded at each trailer supply center. (Note: The trailer
supply center contains one or more attachment plug receptacles with appropriate
overcurrent protection.)
Each trailer (No. 70 published by the National Fire Protection Association and by the National Board of Fire Underwriters) unit shall be provided with a twenty-five-ampere-minimum, multiwire receptacle with appropriate overcurrent protection, conveniently located for the trailer supplies. The grounding terminal of the receptacle shall be connected to the grounding conductor required in § 360-39.
At each supply center there shall be provision for preventing strain
on or undue wearing of the supply cord. Similar provisions shall be made for
connections between the plug of the supply cord and the receptacle. Supply
cords shall be maintained in a good and safe working condition.
The service conductors, service equipment, feeds and feeder equipment
shall have adequate current capacity to conduct safely the current for the
loads supplied. In determining the capacity retired for this equipment and
conductors, the authorities having jurisdiction and the utility company should
be consulted.
