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ANSI/NEMA C84.1-2020 (R2025)

Electric Power Systems and Equipment - Voltage Ratings (60 Hz)

Establishes nominal voltage ratings and operating tolerances for 60Hz electric power systems above 100V. Includes preferred voltage ratings up to and including 1,200kV maximum system voltage.

CONTENT PROVIDER
NEMA: National Electrical Manufacturers Association [nema]

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