IEEE/ANSI C92.2-1987 American National Standard for Power Systems - Alternating-Current Electrical Systems and Equipment Operating at Voltages Above 230 kV Nominal-Preferred Voltage Ratings
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IEEE/ANSI C92.2-1987
IEEE/ANSI C92.2-1987 history
1970IEEE/ANSI C92.2-1987 American National Standard for Power Systems - Alternating-Current Electrical Systems and Equipment Operating at Voltages Above 230 kV Nominal-Preferred Voltage Ratings