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summary
C37.21a-2020 - IEEE Standard for Control Switchboards--Amendment 1: Control and Secondary Circuits and Devices, and All Wiring
description
Standard number: C37.21a-2020. Status: Active. DOI: 10.1109/IEEESTD.2020.9130995
Details
Publisher
IEEE
File size
602.18 KB
Pages
16
Format
PDF
Publication date
2020-12-01
ISBN-13
978-1-504-46572-4
ISBN-13 plain
9781504465724
ISBN-10
1504465724