1、C22.2 No. 144.1-16Ground-fault circuit interrupters Legal Notice for StandardsCanadian Standards Association (operating as “CSA Group”) develops standards through a consensus standards development process approved by the Standards Council of Canada. This process brings together volunteers representi
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18、andards Update ServiceC22.2 No. 144.1-16May 2016Title: Ground-fault circuit interrupters To register for e-mail notification about any updates to this publication go to shop.csa.ca click on CSA Update ServiceThe List ID that you will need to register for updates to this publication is 2423810 .If yo
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20、6Second EditionUnderwriters Laboratories Inc.UL 943Fifth EditionGround-Fault Circuit-InterruptersMay 17, 2016ANSI/UL 943-2016Commitment for AmendmentsThis standard is issued jointly by the Association of Standardization and Certification (ANCE), theCanadian Standards Association (operating as “CSA G
21、roup”), and Underwriters Laboratories Inc. (UL).Comments or proposals for revisions on any part of the standard may be submitted to ANCE, CSAGroup, or UL at anytime. Revisions to this standard will be made only after processing according to thestandards development procedures of ANCE, CSA Group, and
22、 UL. CSA Group and UL will issuerevisions to this standard by means of a new edition or revised or additional pages bearing their dateof issue. ANCE will incorporate the same revisions into a new edition of the standard bearing the samedate of issue as the CSA Group and UL pages.Copyright 2016 ANCER
23、ights reserved in favor of ANCEISBN 978-1-77139-993-7 2016 CSA GroupAll rights reserved. No part of this publication may be reproduced in any form whatsoever without theprior permission of the publisher.This Standard is subject to review five years from the date of publication, and suggestions for i
24、tsimprovement will be referred to the appropriate committee. To submit a proposal for change, pleasesend the following information to inquirescsagroup.org and include Proposal for change in thesubject line: Standard designation (number); relevant clause, table, and/or figure number; wording ofthe pr
25、oposed change; and rationale for the change.To purchase CSA Group Standards and related publications, visit CSA Groups Online Store atshop.csa.ca or call toll-free 1-800-463-6727 or 416-747-4044.Copyright 2016 Underwriters Laboratories Inc.ULs Standards for Safety are copyrighted by UL. Neither a pr
26、inted nor electronic copy of a Standardshould be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regardingthose Standards shall remain the sole and exclusive property of UL.This ANSI/UL Standard for Safety consists of the Fifth edition. The most recent designation
27、 of ANSI/UL943 as an American National Standard (ANSI) occurred on May 17, 2016. ANSI approval for a standarddoes not include the Cover Page, Transmittal Pages, Title Page (front and back), or the Preface.The Department of Defense (DoD) has adopted UL 943 on November 30, 1994. The publication ofrevi
28、sed pages or a new edition of this Standard will not invalidate the DoD adoption.Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time.Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative StandardsDevelopment System (CSDS) at
29、http:/.To purchase UL Standards, visit Comm 2000 at http:/m- call toll-free 1-888-853-3503.CONTENTSPreface .61 Scope .82 Normative References .83 Definitions 84 General .104.1 Components 104.2 Units of measurement 115 Construction .115.1 All types 115.2 Resistance to corrosion 125.3 Grounding and bo
30、nding 125.4 Enclosure and housing .135.5 Provision for connection to permanent wiring systems .135.6 Insulation .145.7 Accessibility of energized parts 145.8 Internal wiring .155.9 Field wiring .155.10 Power-supply cord 165.11 Receptacles .195.12 Spacings 205.13 Alternative spacings clearances and c
31、reepage distances 225.14 Operating mechanism .235.15 Supervisory circuit 245.16 Auto-monitoring function 246 Tests .246.1 General 246.2 Polymeric enclosures 286.3 Enclosure and housing performance .296.4 Representative devices 306.5 Leakage current test .316.6 Voltage surge test .336.7 High-resistan
32、ce ground fault 386.8 Resistance to false tripping test .466.9 Immunity to conducted disturbances, induced by RF fields .486.10 Normal temperature test 486.11 Dielectric voltage withstand test 496.12 Overload and motor starting test .516.13 Low-resistance ground fault test 526.14 Endurance test .536
33、.15 Abnormal operation test .546.16 Surge current test 586.17 Abnormal overvoltage tests 596.18 Extra-low-resistance ground faults test 636.19 Short circuit test 656.20 Dust test 656.21 Corrosion test 666.22 Visual inspection test .676.23 Reverse line-load miswire test .676.24 Reverse line-load misw
34、ire test - repeated .68MAY 17, 2016 NMX-J-520-ANCE CSA C22.2 NO. 144.1-16 UL 943 36.25 Supplemental voltage surge immunity test .686.26 Operating mechanism test 696.27 Permanently connected GFCI end of life test 706.28 GFCI receptacle temperature tests .706.29 Mechanical endurance test 766.30 Spill
35、test .776.31 Auto-monitoring function tests 777 Markings 797.1 Permanence of marking 797.2 Marking 797.3 Permanently connected ground-fault circuit-interrupters 807.4 Portable ground-fault circuit-interrupters 818 Installation Instructions .828.1 General 828.2 Permanently connected ground-fault circ
36、uit-interrupters 83SUPPLEMENT SA - OPTIONAL 10 KA SHORT CIRCUIT CURRENT TEST FOR OUTLET-BOX TYPEGROUND-FAULT CIRCUIT-INTERRUPTERSINTRODUCTIONSA1 Scope .85PERFORMANCESA2 General 85MARKINGSSA3 General 85Annex A (Normative) Reference StandardsA1 Reference Standards .86Annex B (Informative) French Trans
37、lations and MarkingsB1 French Translations and Markings 88Annex C (Informative) Spanish Translations and MarkingsC1 Spanish Translations and Markings .89Annex D (Informative) Reference PublicationsD1 Reference Publications 90MAY 17, 2016NMX-J-520-ANCE CSA C22.2 NO. 144.1-16 UL 9434Annex E (Normative
38、 in Canada and the United States; informative in Mexico) InstallationInstructions Configuration DrawingsE1 Installation Instructions Configuration Drawings .94MAY 17, 2016 NMX-J-520-ANCE CSA C22.2 NO. 144.1-16 UL 943 5PrefaceThis is the harmonized ANCE, CSA Group, and UL Standard for Ground-Fault Ci
39、rcuit-Interrupters. It is thethird edition of NMX-J-520-ANCE, the second edition of CSA C22.2 No. 144.1, and the fifth edition of UL943. This edition of NMX-J-520-ANCE supersedes the previous edition published on February 1, 2006.This edition of CSA C22.2 No. 144.1 supersedes the previous edition pu
40、blished in February 2006. Thisedition of UL 943 supersedes the previous edition published on February 1, 2006, and revised on June29, 2012.This harmonized Standard was prepared by the Association of Standardization and Certification (ANCE),CSA Group, and Underwriters Laboratories Inc. (UL). The effo
41、rts and support of the CANENA TechnicalHarmonization Subcommittee 23E, Ground-Fault Circuit-Interrupters, are gratefully acknowledged.This standard is considered suitable for use for conformity assessment within the stated scope of thestandard.The present Mexican standard was developed by the CT 23
42、Accesorios Electricos from the Comite deNormalizacion de la Asociacion de Normalizacion y Certificacion, A.C., CONANCE, with the collaborationof the ground fault circuit interrupters manufacturers and users.This Standard was reviewed by the CSA Subcommittee on Ground-Fault Circuit-Interrupters, unde
43、r thejurisdiction of the CSA Technical Committee on Industrial Products and the CSA Strategic SteeringCommittee on Requirements for Electrical Safety, and has been formally approved by the CSA TechnicalCommittee.This Standard has been approved by the American National Standards Institute (ANSI) as a
44、n AmericanNational Standard.Application of StandardWhere reference is made to a specific number of samples to be tested, the specified number is to beconsidered a minimum quantity.Note: Although the intended primary application of this standard is stated in its scope, it is important to note thatit
45、remains the responsibility of the users of the standard to judge its suitability for their particular purpose.Level of harmonizationThis Standard uses the IEC format but is not based on, nor shall it be considered equivalent to, an IECStandard. This Standard is published as an identical Standard for
46、 ANCE, CSA Group, and UL.An identical Standard is a Standard that is exactly the same in technical content except for nationaldifferences resulting from conflicts in codes and governmental regulations. Presentation is word for wordexcept for editorial changes.Reasons for differences from IECThis Sta
47、ndard provides requirements for ground-fault circuit-interrupters for use in accordance with theelectrical installation codes of Canada, Mexico, and the United States. At present there is no IEC Standardfor ground-fault circuit-interrupters for use in accordance with these codes. Therefore, this Sta
48、ndard doesnot employ any IEC Standard for base requirements.MAY 17, 2016NMX-J-520-ANCE CSA C22.2 NO. 144.1-16 UL 9436InterpretationsThe interpretation by the standards development organization of an identical or equivalent Standard isbased on the literal text to determine compliance with the Standar
49、d in accordance with the proceduralrules of the standards development organization. If more than one interpretation of the literal text has beenidentified, a revision is to be proposed as soon as possible to each of the standards developmentorganizations to more accurately reflect the intent.MAY 17, 2016 NMX-J-520-ANCE CSA C22.2 NO. 144.1-16 UL 943 71 Scope1.1 This Standard applies to Class A, single- and three-phase, ground-fault circuit-interrupters intendedfor protection of personnel
