C37.21a-2020 - IEEE Approved Draft Standard for Control Switchboards 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.
Sponsor Committee
Board Approval
Additional Resources Details
Working Group Details
Working Group
Working Group Chair
Sponsor Committee
IEEE Program Manager
Existing Standards