Establishes nominal voltage ratings and operating tolerances for 60-hertz electric power systems above 100 volts. It includes preferred voltage ratings up to and including 1200 kV maximum system voltage.
Original price was: $105.00.$52.00Current price is: $52.00.
Electric Power Systems and Equipment – Voltage Ratings (60 Hz)
National Electrical Manufacturers Association , 01/01/2012
Pages: 21
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