1、IEEE Standard for Control Switchboards IEEE Std C37.21-2017 (Revision of IEEE Std C37.21-2005) IEEE Power and Energy Society Sponsored by the Switchgear Committee IEEE 3 Park Avenue New York, NY 10016-5997 USAIEEE Std C37.21-2017 (Revision of IEEE Std C37.21-2005) IEEE Standard for Control Switchboa
2、rds Sponsor Switchgear Committee of the IEEE Power and Energy Society Approved 23 March 2017 IEEE-SA Standards BoardAbstract: Ratings, construction, and testing of dead-front control switchboards containing, but not limited to, devices such as switches, control devices, instrumentation, metering, mo
3、nitoring, alarms, annunciators, protective and auxiliary relays, and regulating devices and accessories are covered in this standard. It includes, but is not specifically limited to, switchboards for the control and protection of apparatus used for or associated with power generation, conversion, tr
4、ansmis- sion, and distribution. Types of switchboards may include control, vertical, dead-front, enclosed, dual, or duplex switchboards. Other construction types include control desks, consoles, bench- boards, dual or duplex benchboards, fixed rack, cabinet, and swing rack cabinets. It does not appl
5、y to industrial controls, communication equipment, switchboards for use on board ships, or Class 1E switchboards for use in nuclear generating stations. Keywords: benchboard, console, control desk, control switchboard, dead-front switchboard, dual benchboard, duplex benchboard, enclosed switchboard,
6、 fixed rack cabinet, IEEE C37.21, swing rack cabinet, vertical switchboard The Institute of Electrical and Electronics Engineers, Inc. 3 Park Avenue, New York, NY 10016-5997, USA Copyright 2017 by The Institute of Electrical and Electronics Engineers, Inc. All rights reserved. Published 23 May 2017.
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37、d, the SASCIEEE Standard for Control Switchboards Working Group had the following membership: Dan Hrncir, Chair Darryl Moser, Vice Chair Douglas J. Edwards Keith Flowers Lou Grahor Jose Jarque Michael Lafond Casey McCollum Jeffery Mizener Charles Morse Owen Parks Ahmad Qasem Richard Rohr Amy Rowell
38、Todd Sauve The following members of the individual balloting committee voted on this standard. Balloters may have voted for approval, disapproval, or abstention. William Ackerman Thomas Barnes Seth Benson William Bloethe Gustavo Brunello William Byrd Eldridge Byron Paul Cardinal Gary Donner Edgar Du
39、llni Douglas J. Edwards Dale Fredrickson Mietek Glinkowski Lou Grahor Randall Groves Thomas Hawkins Werner Hoelzl Dan Hrncir Richard Jackson Jose Jarque Yuri Khersonsky Boris Kogan Jim Kulchisky Chung-Yiu Lam William McBride John McClelland Venkatesh Minisandram Charles Morse Darryl Moser Jerry Murp
40、hy Dennis Neitzel Michael Newman Joe Nims T. W . Olsen Bansi Patel Iulian Profir Timothy Robirds Richard Rohr Thomas Rozek Ryandi Ryandi Todd Sauve Bartien Sayogo Robert Seitz Devki Sharma Xu She Jeremy Smith Jerry Smith Wayne Stec David Tepen James Van De Ligt John Vergis John Wang Kenneth White Ji
41、an Yu When the IEEE-SA Standards Board approved this standard on 23 March 2017, it had the following membership: Jean-Philippe Faure, Chair Gary Hoffman, Vice Chair John D. Kulick, Past Chair Konstantinos Karachalios, Secretary Chuck Adams Masayuki Ariyoshi Ted Burse Stephen Dukes Doug Edwards J. Tr
42、avis Griffith Michael Janezic Thomas Koshy Joseph L. Koepfinger* Kevin Lu Daleep Mohla Damir Novosel Ronald Petersen Annette D. Reilly Robby Robson Dorothy Stanley Adrian Stephens Mehmet Ulema Phil Wennblom Howard Wolfman Yu Yuan *Member Emeritus7 Copyright 2017 IEEE. All rights reserved. Introducti
43、on This introduction is not part of IEEE Std C37.212017, IEEE Standard for Control Switchboards. This standard has been revised to reflect changes that have been suggested since the 2005 revision of IEEE Std C37.21. The revisions in this standard include the following: Revised Switchgear Assemblies
44、Diagram, Figure a Moved “General Application Guide” and “Handling, Storage, and Installation Guide” from normative part of standard to an informative annex Aligned Usual Service Conditions with IEEE Std C37.20.1 B6 1 Revision of the rain test to use the test method in IEEE Std C37.100.1 2 Revision o
45、f the salt spray requirement for test of coatings from 200 h to 600 h, in line with revisions to other standards in the IEEE C37.20.X switchgear assemblies series of standards The following revisions reflect changes made in the 1985 edition: Modification of the use of units to conform to the latest
46、IEEE-SA policy on metrification Removal of current ratings for control switchboards Clarification of requirements for production tests Clarification of voltage and current limits for instruments and control circuits Clarification of voltage circuit protection Clarification of altitude correction fac
47、tors Expansion of nameplate requirements to include control switchboard ratings This standard includes only the requirements for control switchboards (also called control boards). These re- quirements were originally a part of IEEE Std C37.20-1969. Other types of equipment originally included in IEE
48、E Std C37.20-1969 are now incorporated in separate standards. IEEE Std C37.20-1969 for many years covered all switchgear assemblies including metal-enclosed bus and control switchboards. Standards committees of IEEE Switchgear Assemblies Subcommittee and NEMA Pow- er Switchgear Assemblies Technical
49、Committee recommended that the document be further developed and, where appropriate, the various subclauses be identified with their own standards. The Switchgear Assemblies Subcommittee of the Switchgear Committee of the IEEE Power Engineering So- ciety was responsible for this revision. This publication is one of a series covering switchgear assemblies as follows: IEEE Std C37.20.1 B6, Standard for Metal-Enclosed Low-V oltage Power Circuit Breaker Switchgear IEEE Std C37.20.2 B7, IEEE Standard for Metal-Clad Switchgear IEEE Std C37.20.3 B8, IEE
