ANSI C84.1-2011
Electric Power Systems and Equipment-Voltage Ratings (60 Hertz)

Standard No.

ANSI C84.1-2011

Release Date

2011

Published By

American National Standards Institute （ANSI)

Status

Be replaced

Replace By

ANSI C84.1-2016

Latest

ANSI C84.1-2020

Scope

This standard establishes the nominal voltages ratings and operating tolerances for 60-hertz electrical power systems above 100 volts. It also makes recommendations to other standardizing groups with respect to voltage ratings for equipment used on power systems and for utilization devices connect to such systems. This standard includes preferred voltage ratings up to and including 1200 kV maximum system voltages as defined in the standard.

ANSI C84.1-2011 history

• 2020 ANSI C84.1-2020 American National Standard for Electric Power Systems and Equipment -- Voltage Ratings (60 Hz)
• 2016 ANSI C84.1-2016 Electric Power Systems and Equipment — Voltage Ratings (60 Hertz)
• 2011 ANSI C84.1-2011 Electric Power Systems and Equipment-Voltage Ratings (60 Hertz)
• 2006 ANSI C84.1-2006 American National Standard for Electric Power Systems and Equipment - Voltage Ratings (60 Hertz)