NEC Requirements for Generators and Standby Power Systems

NEC Requirements for Generators and Standby Power Systems • Carry the maximum unbalanced current as determined by 220.61. • Serve as the low-impedance fault current path. Author’s Comment: If the feeder conductors from the gener-ator terminate in a transfer switch that doesn’t open the neutral conductor, the generator isn’t considered a separately derived system [250.30 Note 1 ... ................
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