1、#.O %LECTRICMOTORSANDGENERATORSFORUSEINHAZARDOUSCLASSIFIED LOCATIONS(reaffirmed 2015)Legal Notice for StandardsCanadian Standards Association (CSA) standards are developed through a consensus standards development process approved by the Standards Council of Canada. This process brings together volu
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17、 the contents hereof, and if you do make such copies, you are required to destroy them immediately. Use of this document constitutes your acceptance of the terms and conditions of this Legal Notice.Update No. 1C22.2 No. 145-11May 2017Note: For information about the Standards Update Service, go to sh
18、op.csa.ca or e-mail techsupportcsagroup.org.Title: Electric motors and generators for use in hazardous (classified) locations originally published May 2011The following revisions have been formally approved and are marked by a vertical line in the margin on the attached replacement pages:Revised Cov
19、er, copyright page, Preface, and Clause 29.1NewDeleted Clause 29.3 Update your copy by inserting these revised pages.Keep the pages you remove for reference.Association of Standardization and CertificationNMX-J-652-ANCEFirst EditionCSA GroupCSA C22.2 No. 145-11Third EditionUnderwriters Laboratories
20、Inc.UL 674Fifth EditionElectric Motors and Generators for Use in Hazardous (Classified)LocationsMay 31, 2011(Title Page Reprinted: May 19, 2017)ANSI/UL 674-2017Commitment for AmendmentsThis standard is issued jointly by the Association of Standardization and Certification (ANCE), theCanadian Standar
21、ds Association (CSA), and Underwriters Laboratories Inc. (UL). Comments orproposals for revisions on any part of the standard may be submitted to ANCE, CSA, or UL at any time.Revisions to this standard will be made only after processing according to the standards developmentprocedures of ANCE, CSA,
22、and UL. CSA and UL will issue revisions to this standard by means of anew edition or revised or additional pages bearing their date of issue. ANCE will incorporate the samerevisions of the standard bearing the same date of issue as the CSA and UL pages.Copyright 2017 ANCERights reserved in favor of
23、ANCE.ISBN 978-1-55491-633-7 2011 CSA GroupAll rights reserved. No part of this publication may be reproduced in any form whatsoever without theprior permission of the publisher.CSA Standards are subject to periodic review, and suggestions for their improvement will be referredto the appropriated com
24、mittee. To submit a proposal for change to CSA Standards, please send thefollowing information to inquirescsa.ca and include Proposal for change in the subject line:Standard designation (number); relevant clause, table and/or figure number; wording of the proposedchange; and rationale for the change
25、.To purchase CSA Standards and related publications, visit CSAs Online Store at www.shop.csa.ca orcall toll-free 1-800-463-6727 or 416-747-4044.Copyright 2017 Underwriters Laboratories Inc.ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standardshould be al
26、tered 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 including revisions through May 19,2017. The most recent designation of ANSI/UL
27、 674 as an American National Standard (ANSI) occurredon May 19, 2017. ANSI approval for a standard does not include the Cover Page, Transmittal Pages,Title Page (front and back), or the Preface. Any other portions of this ANSI/UL standard that were notprocessed in accordance with ANSI/UL requirement
28、s are noted at the beginning of the impactedsections.The Department of Defense (DoD) has adopted UL 674 on November 6, 1987. The publication ofrevised 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 s
29、ubmitted to UL at any time.Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative StandardsDevelopment System (CSDS) at https:/.To purchase UL Standards, visit ULs Standards Sales Site at http:/ or call toll-free 1-888-853-3503.38.3 Overload test .5038.4 Endurance test 503
30、8.5 Calibration test 5139 Secureness Test on Conduit Hubs 5140 Electrical-Resistance Test 5141 Accelerated-Aging Test on Bushings .5142 Cord-Pull Test 5243 Rough-Usage Test 5244 Drop Test 5345 Gasoline-Leakage Test .5346 Non-Metallic Fans and Fan Guards Test .5346.1 General .5346.2 Conductivity test
31、 5346.3 Accumulation of static electricity test .5447 Pull Test on Tubes 5548 Sealing Compounds Test .5549 Low Ambient-Duty Motors 5749.1 General .5749.2 Construction 5749.3 Explosion test .5849.4 Drop test on lead seal .5849.5 Manufacturing and Production Tests Dielectric Voltage-Withstand Test .58
32、50 Grounding-Continuity Test .5951 Markings .59Annex A (normative) Standard ReferencesAnnex B (informative) Standards for componentsB1 Component Standards 92Annex C (normative) Construction for Waiver of Explosion TestsC1 Explosion tests per the exception to 36.1.2 93C2 Joints .93C2.1 General 93C2.2
33、 Threaded Joints 93C2.3 Bolts in Joint Width .93C2.4 Through-bolts 94C3 Shaft Openings 94C3.1 Class I Locations 94MAY 31, 2011 NMX-J-652-ANCE CSA C22.2 NO. 145-11 UL 674 5PrefaceThis is the harmonized ANCE, CSA, and UL standard for electrical motors and generators. It is the firstedition of NMX-J-65
34、2-ANCE, the third edition of CSA-C22.2 No. 145, and the fifth edition of UL 674. Thisedition of CSA C22.2 No. 145 supersedes the previous editions published in 1972 and 1986. This editionof UL 674 supersedes the previous edition published in 2003. This harmonized standard was last jointlyrevised on
35、May 19, 2017.This harmonized standard was prepared by the Association of Standardization and Certification (ANCE),the Canadian Standards Association (CSA), and Underwriters Laboratories Inc. (UL). The efforts andsupport of the CANENA Technical Harmonization Committee are gratefully acknowledged.This
36、 standard is considered suitable for use for conformity assessment within the stated scope of thestandard.This standard was reviewed by the CSA Integrated Committee on Hazardous Location Products, underthe jurisdiction of the CSA Technical Committee on Industrial Products and the CSA Strategic Steer
37、ingCommittee 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 an AmericanNational Standard.Where reference is made to a specific number of samples to be tested, t
38、he 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 that it remainsthe responsibility of the users of the standard to judge its suitability for their particular purpose.Level of har
39、monizationThis standard uses the IEC format but is not based on, nor is it to be considered equivalent to, an IECstandard. This standard is published as an equivalent standard for ANCE, CSA, and UL.An equivalent standard is a standard that is substantially the same in technical content, except as fo
40、llows:Technical national differences are allowed for codes and governmental regulations as well as thoserecognized as being in accordance with NAFTA Article 905, for example, because of fundamental climatic,geographical, technological, or infrastructural factors, scientific justification, or the lev
41、el of protection thatthe country considers appropriate. Presentation is word for word except for editorial changes.Reasons for differences from IECThis standard provides requirements for electric motors and generators in accordance with the codes ofCanada, Mexico, and the United States. At present t
42、here is no IEC standard for electric motors andgenerators for use in accordance with these codes. Therefore, this standard does not employ any IECstandard for base requirements.MAY 19, 2017NMX-J-652-ANCE CSA C22.2 NO. 145-11 UL 674627.2 Motors rated more than 1500 volts27.2.1 (I, II) In a motor rate
43、d more than 1500 V, there shall be no uninsulated live parts with spacingsless than those given in Table 25 or Table 26.28 Test Voltages and Test Conditions28.1 (I, II) The performance of a motor shall be investigated by subjecting representative samples to allthe applicable tests described in Varia
44、ble-Frequency Inverter-Drive Motors of Clause 30 and TemperatureTests General of Clause 31.28.2 (I, II) Except as noted in 28.3, for the tests described in Temperature Tests General of Clause 31the motor shall be mounted in the intended operating position, when possible, and coupled to a generator,d
45、ynamometer, or other loading equipment, and operated at rated frequency and at full rated load orservice factor load based on the voltage specified in Table 29.28.3 (I, II) When an integral horsepower d-c motor is tested as described in 32.9.3 32.9.6, such testsmay be conducted using a d-c power sup
46、ply that:a) Is capable of starting the motor under full load, with starting equipment, if necessary;b) Maintains the supply voltage specified in Table 29 at the motor terminals when the motor isoperated as described in 28.4; andc) Under locked-rotor conditions, maintains an armature current that is
47、ten times the rated full-load current of the motor at a voltage that may be other than that specified in Table 29.28.4 (I, II) With regard to the requirements in Normal Temperature Test in 32.1, rated load is consideredto exist when the motor is loaded to at least:a) For a motor other than service-f
48、actor duty motor:1) Rated horsepower; or2) Marked full load amperes if the motor does not have a horsepower rating or thehorsepower can not be measured during testing;b) For a service-factor duty motor:1) Rated horsepower times service factor; or2) Marked full load amperes times service-factor if the motor does not have ahorsepower rating or the horsepower cannot be measured during testing; andc) For a line of motors, as specified in (a) or (b), as applicable, or higher if necessary to attainrated temperature rise on the windings when the motor is operate
