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IEEE C37.21a-2020

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Full Description

Scope

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. This amendment will focus on sub clause 7.1.5, the wire used in switchboards.

Abstract

Amendment Standard - Active.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.

Product Details

Published: 07/01/2020 ISBN(s): 9781504465724, 9781504465731 Number of Pages: 13 File Size: 1 file , 540 KB Product Code(s): STD24124, STDPD24124, STDPL24124

R00007961
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