ANSI C37.12-1981
American Standard Guide to s AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis and a Total Current Basis

Standard No.

ANSI C37.12-1981

Release Date

1981

Published By

Institute of Electrical and Electronics Engineers (IEEE)

Status

Be replaced 1991-06

Replace By

ANSI C37.12-1991

Latest

ANSI C37.12-1991

Scope

These specifications apply to all indoor and outdoor types of ac high-voltage circuit breakers rated above 1000 volts. This document is issued only as a guide for use in compiling specifications for ac high-voltage circuit breakers. The imperative mode of the language is illustrative of that used in specifications. It does not imply that this document is anything other than advisory in its scope.

ANSI C37.12-1981 history

• 1991 ANSI C37.12-1991 American National Standard for AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis-- Specifications Guide
• 1981 ANSI C37.12-1981 American Standard Guide to s AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis and a Total Current Basis