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IEEE C37.21a-2020

Withdrawn

Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

IEEE Standard for Control Switchboards--Amendment 1: Control and Secondary Circuits and Devices, and All Wiring

Published date

01-07-2020

Withdrawn date

28-02-2026

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Align the wiring requirements of this standard with; IEEE C37.20.1, IEEE C37.20.2, IEEE C37.20.3, and IEEE C37.20.9.

Committee
Switchgear
DocumentType
Standard
PublisherName
Institute of Electrical & Electronics Engineers
Status
Withdrawn

IEEE C37.30.6-2023 IEEE Guide for Electric Motor Operators Applied to High‐Voltage Air Switches Rated Above 1000 V

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