IEEE C37.20.1a-2020 PDF
Align the wiring requirements of this standard with; C37.20.2, C37.20.3, C37.20.9 and C37.21. This amendment will focus on sub clause 7.1.3.1, the wire used in switchgear. Amendment Standard - Active. The requirements for control, secondary, and logic-level wiring are addressed in this amendment. It covers wire type, ampacity, and methods for protecting wiring across a hinge.IEEE C37.20.1a-2020 History
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