IEEE C37.20.2a-2020 - IEEE Standard for Metal-Clad Switchgear--Amendment 1: Control and Secondary Circuits and Devices, and All Wiring
Standard Details
This amendment addresses the requirements for control, secondary, and logic-level wiring. It covers wire type, ampacity, and methods for protecting wiring across a hinge.
Standards Committee
Board Approval
Additional Resources Details
Working Group Details
Working Group
Working Group Chair
Standards Committee
IEEE Program Manager