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(A) Portable Generators
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The frame of a portable generator shall not be required to be connected to a grounding electrode as defined in 250.52 for a system supplied by the generator under both of the following conditions:
- The generator supplies only equipment mounted on the generator, cord-and-plug-connected equipment through receptacles mounted on the generator, or both.
- The normally non-current-carrying metal parts of equipment and the equipment grounding conductor terminals of the receptacles are connected to the generator frame.
Related Code Sections
(A) Wiring and Protection, Portable Generators
The frame of a portable generator shall not be required to be connected to a grounding electrode as defined in 250.52 for a system supplied ...
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Where a portable optional standby source is used as a separately derived system, it shall be grounded to a grounding electrode in accordance ...
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(3) Special Occupancies, Receptacles on 15-kW or Less Portable Generators
All 125-volt and 125/250-volt, single-phase, 15-, 20-, and 30-ampere receptacle outlets that are a part of a 15-kW or smaller portable generator ...
National Electrical Code 2020 of Minnesota > 5 Special Occupancies > 590 Temporary Installations > 590.6 Ground-Fault Protection for Personnel > (A) Receptacle Outlets > (3) Receptacles on 15-kW or Less Portable Generators