UL 98-2004 UL Standard for Safety Enclosed and Dead-Front Switches (Thirteenth Edition Reprint with revisions through and including October 10 2014)《封闭式开关和不露带电部分的开关》.pdf

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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 98 Enclosed and Dead-Front SwitchesUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHE

2、R REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Enclosed and Dead-Front Switches, UL 98 Thirteenth Edition, Dated February 25, 2004 Summary of Topic This revision of ANSI/UL 98 is being issued to revise the Power Factor for Short Circuit Testing with Class H Fuse

3、s rated 100 A and less in item i) of 7.7.5. Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. The new and revised requirements are substantially in accordance with Proposal(s) on this subject dated June 13, 2014. Al

4、l rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides this Standard as is without warranty of any kind, either e

5、xpressed or implied, including but not limited to, the implied warranties of merchantability or tness for any purpose. In no event will UL be liable for any special, incidental, consequential, indirect or similar damages, including loss of prots, lost savings, loss of data, or any other damages aris

6、ing out of the use of or the inability to use this Standard, even if UL or an authorized UL representative has been advised of the possibility of such damage. In no event shall ULs liability for any damage ever exceed the price paid for this Standard, regardless of the form of the claim. Users of th

7、e electronic versions of ULs Standards for Safety agree to defend, indemnify, and hold UL harmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic

8、 Standard on the purchasers computer system. The requirements in this Standard are now in effect, except for those paragraphs, sections, tables, gures, and/or other elements of the Standard having future effective dates as indicated in the preface. The prior text for requirements that have been revi

9、sed and that have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. OCTOBER 10, 2014 UL 98 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 10, 2014 UL 98 tr2 No Text on T

10、his PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Association of Standardization and Certication NMX-J-162-ANCE-2014 Third Edition CSA Group CAN/CSA-C22.2 No. 4-04 Seventh Edition Underwriters Laboratories Inc. UL 98 Thirteenth Edition

11、 Enclosed and Dead-Front Switches February 25, 2004 (Title Page Reprinted: October 10, 2014) ANSI/UL 98-2014 Approved byUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Commitment for Amendments This standard is issued jointly by the National

12、 Association of Standardization and Certication of the Electrical Sector (ANCE), the Canadian Standards Association (CSA), and Underwriters Laboratories Inc. (UL). Comments or proposals for revisions on any part of the standard may be submitted to ANCE, CSA, or UL at any time. Revisions to this stan

13、dard will be made only after processing according to the standards development procedures of ANCE, CSA, and UL. CSA and UL will issue revisions to this standard by means of a new edition or revised or additional pages bearing their date of issue. ANCE will incorporate the same revisions into a new e

14、dition of the standard bearing the same date of issue as the CSA and UL pages. Copyright 2014 ANCE Rights reserved in favor of ANCE. ISBN 1-55397-536-7 2004 CSA Group All rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission of the publish

15、er. CSA Standards are subject to periodic review, and suggestions for their improvement will be referred to the appropriate committee. To submit a proposal for change to CSA Standards, please send the following information to inquirescsa.ca and include Proposal for change in the subject line: Standa

16、rd designation (number); relevant clause, table, and/or gure number; wording of the proposed change; and rationale for the change. To purchase CSA Standards and related publications, visit CSAs Online Store at www.shop.csa.ca or call toll-free 1-800-463-6727 or 416-747-4044. Copyright 2014 Underwrit

17、ers Laboratories Inc. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. This A

18、NSI/UL Standard for Safety consists of the Thirteenth edition including revisions through October 10, 2014. The most recent designation of ANSI/UL 98 as an American National Standard (ANSI) occurred on October 10, 2014. ANSI approval for a standard does not include the Cover Page, Transmittal Pages,

19、 Title Page (front and back), or the Preface. 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 Standards Development System (CSDS) at http:/. To purchase UL Standards,

20、 visit Comm 2000 at http:/m- or call toll-free 1-888-853-3503.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS Preface .5 1 Scope 11 2 Normative References 12 3 Components 12 4 Units of Measurement 12 5 Denitions .12A 6 Construction

21、.16 6.1 General 16 6.2 Enclosure 17 6.3 Operating mechanism 18 6.4 Accessibility of live parts .19 6.5 Electrical insulation material 19 6.6 Spacings .20 6.7 Current-carrying parts 25 6.8 Fusing .31 6.9 Field conversion .32 6.10 Enclosed switch wiring and bending space 33 6.11 Disconnecting means of

22、 the grounded service conductor 37 6.12 Provision for grounding .37 6.13 Provision for bonding .39 6.14 Electrically tripped switches 40 6.15 Additional service equipment requirements for Canada .40 7 Test methods 41 7.1 General 41 7.2 Heating test 43 7.3 Overload test .46 7.4 Endurance test 50 7.5

23、Dielectric voltage-withstand test .53 7.5A Clamped joint test .54 7.6 Close-open test .54 7.7 Short-circuit withstand test 55 7.8 Low-level dielectric voltage-withstand test 58 7.9 Short-circuit closing test 58 7.10 Low-level dielectric voltage-withstand test .58 7.11 Strength of insulating base and

24、 support test .58 7.12 Electrically tripped switches 59 7.13 Mold stress relief test .61 7.14 Insulating barriers test 62 8 Ratings .62 8.1 General 62 8.2 Current .62 8.3 Voltage 62 8.4 Horsepower or kilowatts 64 8.5 Short-circuit current .66 9 Marking .66 9.1 General 66 9.2 All switches .66A 9.3 El

25、ectrically tripped switches .73 MAY 31, 2012 NMX-J-162-ANCE-2011 CAN/CSA-C22.2 NO. 4-04 UL 98 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SUPPLEMENT SA - Enclosed and Deadfront Switches Intended for Marine Use SA1 Scope .79 SA2 Denition

26、s 79 SA3 General .2 SA4 Construction .2 SA4.1 Enclosure protection against corrosion .2 SA4.2 Current-carrying parts 3 SA4.3 Insulating material .3 5 Performance .3 SA5.1 Vibration test 3 SA5.2 Shock test 4 SA5.3 Ignition protection test 4 SA5.4 Dripproof enclosure test 5 SA5.5 Watertight enclosure

27、test .5 SA6 Markings 5 APPENDIX A (normative) APPENDIX B (informative) APPENDIX C (normative) APPENDIX D (informative) APPENDIX E (informative) E1 Instrumentation 1 E2 Galvanometer Calibration .1 E3 Alternating Current Circuits 10,000 A and Less 2 E4 Alternating Current Circuits Greater than 10,000

28、A .3 E5 Recovery Voltage AC 5 E6 Direct Current Circuits 6 APPENDIX F (informative) OCTOBER 10, 2014 NMX-J-162-ANCE-2011 CAN/CSA-C22.2 NO. 4-04 UL 98 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Preface This is the harmonized ANCE, CSA,

29、and UL standard for Enclosed and Dead-Front Switches.I ti st h e Third edition of NMX-J-162-ANCE, the Seventh edition of CSA C22.2 No. 4, and the Thirteenth edition of UL 98. This harmonized standard has been jointly revised October 10, 2014. For this purpose, CSA and UL are issuing revision pages d

30、ated October 10, 2014, and ANCE is issuing a new edition dated October 10, 2014. This harmonized standard was prepared by the Association of Standardization and Certication (ANCE), the Canadian Standards Association (CSA), and Underwriters Laboratories Inc., (UL). The efforts and support of the Tech

31、nical Harmonization Committee for Enclosed Switches, of the Council on the Harmonization of Electrotechnical Standards of the Nations of the Americas (CANENA), are gratefully acknowledged. This standard is considered suitable for use for conformity assessment within the stated scope of the standard.

32、 This standard was reviewed by the CSA Subcommittee on Enclosed and Dead-Front Switches, under the jurisdiction of the CSA Technical Committee on Industrial Products and the CSA Strategic Steering Committee on Requirements for Electrical Safety, and has been formally approved by the CSA Technical Co

33、mmittee. This standard has been approved as a National Standard of Canada by the Standards, Council of Canada (SCC). This standard has been approved by the American National Standards Institute (ANSI) as an American National Standard. Where reference is made to a specic number of samples to be teste

34、d, the specied number shall be considered a minimum quantity. Note: Although the intended primary application of this standard is stated in its scope, it is important to note that it remains the responsibility of the users of the standard to judge its suitability for their particular purpose. Level

35、of harmonization This standard uses the IEC format but is not based on, nor is it considered equivalent to, an IEC standard. 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

36、 follows: Technical national differences are allowed for codes and governmental regulations as well as those recognized as being in accordance with NAFTA Article 905, for example, because of fundamental climatic, geographical, technological, or infrastructural factors, scientic justication, or the l

37、evel of protection that the country considers appropriate. Presentation is word for word except for editorial changes. Reasons for differences from IEC The THC determined the safe use of enclosed and dead-front switches is dependent on the design and performance of the products in relation to the No

38、rth American Electrical Codes with which they are intended to be installed. OCTOBER 10, 2014 NMX-J-162-ANCE-2011 CAN/CSA-C22.2 NO. 4-04 UL 98 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Interpretations The interpretation by the standard

39、s development organization of an identical or equivalent standard is based on the literal text to determine compliance with the standard in accordance with the procedural rules of the standards development organization. If more than one interpretation of the literal text has been identied, a revisio

40、n is to be proposed as soon as possible to each of the standards development organizations to more accurately reect the intent. ANCE Effective Date The effective date for ANCE will be announced through the Diario Ocial de la Federacin (Official Gazette) and is indicated on the cover page. CSA Effect

41、ive Date The effective date for CSA International will be announced through CSA Informs or a CSA certication notice. UL Effective Date The effective date for UL is the date of publication. A UL effective date is one established by Underwriters Laboratories Inc. and is not part of the ANSI approved s

42、tandard. OCTOBER 10, 2014 NMX-J-162-ANCE-2011 CAN/CSA-C22.2 NO. 4-04 UL 98 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL This page intentionally left blank. APRIL 21, 2006 NMX-J-162-ANCE-2004 C22.2 NO. 4-04 UL 98 7UL COPYRIGHTED MATERIAL

43、NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL This page intentionally left blank. APRIL 21, 2006 NMX-J-162-ANCE-2004 C22.2 NO. 4-04 UL 98 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 21, 2006 NM

44、X-J-162-ANCE-2004 C22.2 NO. 4-04 UL 98 9 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL This page intentionally left blank. APRIL 21, 2006 NMX-J-162-ANCE-2004 C22.2 NO. 4-04 UL 98 10UL COPYRIGHTED MATERIAL NOT AUTHORIZED

45、 FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 1 Scope 1.1 These requirements cover individually enclosed air switches, rated 4000 A or less at 600 V or less, having all current-carrying parts enclosed, manually operable by means of external handles, and intended to be employed

46、 in accordance with the national installation codes listed in Appendix A, Ref. No.1. 1.1.1 As used in this Standard, the term switch is intended to mean an enclosed switch or deadfront switch unless specically stated otherwise. 1.2 These requirements also cover deadfront switches that have all curre

47、nt-carrying parts enclosed when mounted in an enclosed panelboard, deadfront switchboard, or the like. These switches are manually operable by means of external handles and are intended to be employed in accordance with the national installation codes listed in Appendix A, Ref. No.1. 1.3 These requi

48、rements cover enclosed switches with or without provision for fuses suitable for use as branch circuit, feeder, and service overcurrent protection. 1.3.1 The following fuses are deemed suitable for use as branch circuit, feeder, and service overcurrent protection: a) Cartridge Fuses (Ref. Appendix B

49、, Low-Voltage Fuses Parts 1-10, 12 and 15); b) Plug Fuses (Ref. Appendix B, Low-Voltage Fuses Parts 1 and 11); and c) Special Purposes Fuses marked as meeting the performance specications of a specic Class Fuse. 1.4 These requirements cover enclosed switches intended for general use and having ampere ratings, with or without horsepower or kilowatt ratings, and enclosed switches intended for motor-circuit use only and having hor