IEEE Standard for Control Switchboards--Amendment 1: Control and Secondary Circuits and Devices, and All Wiring
STANDARD published on 1.7.2020
Designation standards: IEEE C37.21a-2020
Note: Change
Publication date standards: 1.7.2020
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: International technical standard
Category: Technical standards IEEE
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.
ISBN: 978-1-5044-6572-4, 978-1-5044-6573-1
Number of Pages: 16
Product Code: STD24124, STDPD24124
Keywords: benchboard, console, control desk, control switchboard, dead-front switchboard, dual benchboard, duplex benchboard, enclosed switchboard, fixed rack cabinet, IEEE C37.21, IEEE C37.21a, swing rack cabinet, vertical switchboard
Category: Switchgear