When is GFCI protection for the 125V, 15A and 20A receptacle outlets mounted on a generator not required for unbonded (floating neutral) portable generators, 15kW or smaller?
A) When the 125V receptacle(s) are interlocked such that they are not available when any 125/250V receptacles are in use
B) When a single ground rod is installed adjacent to the portable generator
C) When two ground rods are installed adjacent to the portable generator
D) Never
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Answer: A
As per Sec. 445.20(A), GFCI protection for the 125V, 15A and 20A receptacle outlets mounted on a generator is not required for unbonded (floating neutral) portable generators 15kW or smaller when the 125V receptacle(s) are interlocked such that they are not available when any 125/250V receptacles are in use.
Owen is the owner and president of National Code Seminars and the holder of master electrician certifications in 46 states. He can be reached at [email protected].
