ANSI UL 60947-7-3-2017 UL Standard for Safety Low-Voltage Switchgear and Controlgear C Part 7-3 Ancillary Equipment C Safety Requirements for Fuse Terminal Blocks (Third Edition).pdf

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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 60947-7-3 Low-Voltage Switchgear and Controlgear Part 7-3: Ancillary Equipment Safety Requirements for Fuse Terminal Blocks STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURT

2、HER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Low-Voltage Switchgear and Controlgear Part 7-3: Ancillary Equipment Safety Requirements for Fuse Terminal BlocksUL 60947-7-3 Third Ed

3、ition, Dated January 27, 2017 Summary of Topics This revision of ANSI/UL 60947-7-3 is to revise the National Differences to include Canada. This standard is harmonized for Canada, Mexico and the United States and co-published by all three standards development organizations (CSA Group, ANCE and UL).

4、 All 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, eithe

5、r expressed 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 a

6、rising 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

7、 the 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 electro

8、nic 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 r

9、evised and that have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. JANUARY 27, 2017 UL 60947-7-3 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JANUARY 27, 2017 UL 60947-7-3

10、 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Association of Standardization and Certication NMX-J-538/7-3-ANCE First Edition CSA Group CAN/CSA-C22.2 No. 60947-7-3:17 First Edition (IEC 60947-7-3:2002, MOD) Underwr

11、iters Laboratories Inc. UL 60947-7-3 Third Edition Low-Voltage Switchgear and Controlgear Part 7-3: Ancillary Equipment Safety Requirements for Fuse Terminal Blocks January 27, 2017 This national standard is based on publication IEC 60947-7-3, rst edition (2002) including Corrigendum 1 (2003). ANSI/

12、UL 60947-7-3-2017 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 Association of Standardization and Certication (ANCE), the Canadian Standards Association (operatin

13、g as “CSA Group”), and Underwriters Laboratories Inc. (UL). Comments or proposals for revisions on any part of the standard may be submitted to ANCE, CSA Group, or UL at anytime. Revisions to this standard will be made only after processing according to the standards development procedures of ANCE,

14、CSA Group, and UL. CSA Group 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 edition of the standard bearing the same date of issue as the CSA Group and UL pages. Co

15、pyright 2011 ANCE Rights reserved in favor of ANCE. ISBN 978-1-77139-994-4 2017 CSA Group All rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission of the publisher. This Standard is subject to review within ve years from the date of publi

16、cation, and suggestions for its improvement will be referred to the appropriate committee. To submit a proposal for change, please send the following information to inquirescsagroup.org and include Proposal for change in the subject line: Standard designation (number); relevant clause, table, and/or

17、 gure number; wording of the proposed change; and rationale for the change. To purchase CSA Group Standards and related publications, visit CSA Groups Online Store at shop.csa.ca or call toll-free 1-800-463-6727 or 416-747-4044. Copyright 2017 Underwriters Laboratories Inc. ULs Standards for Safety

18、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 ANSI/UL Standard for Safety consists of the Thir

19、d edition including revisions through January 27, 2017. The most recent designation of ANSI/UL 60947-7-3 as an American National Standard (ANSI) occurred on January 27, 2017. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page (front and back), or the Preface.

20、 The National Difference Page and IEC Foreword are also excluded from the ANSI approval of IEC-based standards. 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 Standa

21、rds Development System (CSDS) at https:/. To purchase UL Standards, 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 NATIONAL DIFFERENCES . 8 FOREWORD 9 INTRODU

22、CTION . 11 1 General .12 1.1 Scope 12 1.2 Normative references 13 2 Denitions 13 3 Classication 14 4 Characteristics .15 4.1 Fuse-links 15 4.2 Rated power dissipation value 15 4.3 Rated and limiting values .15 5 Product information 16 5.1 Marking 16 5.2 Additional information 17 5.3 Marking on the p

23、acking unit 18 6 Normal service, mounting and transport conditions .18 6.1.1 Ambient temperature .18 7 Constructional and performance requirements .18 7.1 Constructional requirements 18 7.2 Performance requirements 21 7.3 Electromagnetic compatibility (EMC) .24 8 Tests .24 8.1 Kinds of test 24 8.2 G

24、eneral 24 8.3 Verication of mechanical characteristics .24 8.4 Verication of electrical characteristics .28 8.5 Verication of thermal characteristics 35 8.6 Verication of EMC characteristics .43 Annex A (normative) Gauges Annex B (informative) Power dissipation values P V and P VK B.1 Ascertainment

25、of the rated power dissipation values P v and P VK of fuse terminal blocks 46 B.2 Design of the derating curves .46 B.3 Evaluation .47 B.4 Examples .47 B.4.1 Example 1 Field of application: exclusive short-circuit protection (P VK ) .47 B.4.2 Example 2 Field of application: Overload and short-circui

26、t protection (P V ) 51 Annex C (normative) Order of tests and number of specimens JANUARY 27, 2017 NMX-J-538/7-3-ANCE CAN/CSA-C22.2 NO. 60947-7-3:17 UL 60947-7-3 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Annex DVA (normative) IEC, Can

27、adian, Mexican, and United States Standard References Annex DVB (normative) DVB.1 General .60 Bibliography JANUARY 27, 2017 NMX-J-538/7-3-ANCE CAN/CSA-C22.2 NO. 60947-7-3:17 UL 60947-7-3 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Prefa

28、ce This is the harmonized ANCE, CSA Group, and UL standard for Low-Voltage Switchgear and Controlgear Part 7-3: Ancillary Equipment Safety Requirements for Fuse Terminal Blocks. It is the rst edition of NMX-J-538/7-3-ANCE, the rst edition of CAN/CSA-C22.2 No. 60947-7-3, and the third edition of UL 6

29、0947-7-3. This edition of UL 60947-7-3 supersedes the previous edition(s) published on May 6, 2011. This harmonized standard is based on IEC Publication 60947-7-3: Edition 1 (2002), Low-Voltage Switchgear and Controlgear Part 7-3: Ancillary Equipment Safety Requirements for Fuse Terminal Blocks, as

30、revised by corrigendum (March 2003). IEC 60947-7-3 is copyrighted by the IEC. This harmonized standard was prepared by the Association of Standardization and Certication (ANCE), CSA Group, and Underwriters Laboratories Inc. (UL). The efforts and support of the Technical Harmonization Committee for I

31、ndustrial Control Equipment, 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. The Mexican Standard wa

32、s developed by the CT PIE-A from the Comite de Normalizacion de la Asociacion de Normalizacion y Certicacion, A.C., CONANCE, with the collaboration of the manufacturers and users. This standard was reviewed by the CSA Subcommittee on Terminal Assemblies, under the jurisdiction of the CSA Technical C

33、ommittee on Industrial Products and the CSA Strategic Steering Committee on Requirements for Electrical Safety, and has been formally approved by the CSA Technical Committee. This standard has been approved as a National Standard of Canada by the Standards Council of Canada (SCC). This standard has

34、been approved by the American National Standards Institute (ANSI) as an American National Standard. Application of Standard Where reference is made to a specic number of samples to be tested, the specied number is to be considered a minimum quantity. Note: Although the intended primary application o

35、f 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. NMX-J-538/7-3-ANCE Standard for Safety for Low-Voltage Switchgear and Controlgear Part 7-3: Ancillary Equipment Safet

36、y Requirements for Fuse Terminal Blocks is to be used in conjunction with the rst edition of NMX-J-538/7-1-ANCE. The requirements for Ancillary Equipment Safety Requirements for Fuse Terminal Blocks are contained in this Part 2 Standard and NMX-J-538/7-1-ANCE. Requirements of this Part 2 Standard, w

37、here stated, amend the requirements of NMX-J-538/7-1-ANCE. Where a particular subclause of NMX-J-538/7-1-ANCE is not mentioned in NMX-J-538/7-3-ANCE, the NMX-J-538/7-1-ANCE subclause applies. This CAN/CSA-C22.2 No. 60947-7-3, Standard for Safety for Low-Voltage Switchgear and Controlgear Part 7-3: A

38、ncillary Equipment Safety Requirements for Fuse Terminal Blocks, is to be used in conjunction with the rst edition of CAN/CSA-C22.2 No. 60947-7-1. The requirements for Ancillary JANUARY 27, 2017 NMX-J-538/7-3-ANCE CAN/CSA-C22.2 NO. 60947-7-3:17 UL 60947-7-3 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FO

39、R FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Equipment Safety Requirements for Fuse Terminal Blocks are contained in this Part 2 Standard and CAN/CSA-C22.2 No. 60947-7-1. Requirements of this Part 2 Standard, where stated, amend the requirements of CAN/CSA-C22.2 No. 60947-7-1. W

40、here a particular subclause of CAN/CSA-C22.2 No. 60947-7-1 is not mentioned in CAN/CSA-C22.2 No. 60947-7-3, the CAN/CSA-C22.2 No. 60947-7-1 subclause applies. This UL 60947-7-3, Standard for Safety for Low-Voltage Switchgear and Controlgear Part 7-3: Ancillary Equipment Safety Requirements for Fuse

41、Terminal Blocks, is to be used in conjunction with the fourth edition of UL 60947-7-1. The requirements for Ancillary Equipment Safety Requirements for Fuse Terminal Blocks are contained in this Part 2 Standard and UL 60947-7-1. Requirements of this Part 2 Standard, where stated, amend the requireme

42、nts of UL 60947-7-1. Where a particular subclause of UL 60947-7-1 is not mentioned in UL 60947-7-3, the UL 60947-7-1 subclause applies. Level of harmonization This standard adopts the IEC text with national differences. This standard is published as an equivalent standard for ANCE, CSA Group, and UL

43、. An equivalent standard is a standard that is substantially the same in technical content, except as 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 fundamen

44、tal climatic, geographical, technological, or infrastructural factors, scientic justication, or the level of protection that the country considers appropriate. Presentation is word for word except for editorial changes. All national differences from the IEC text are included in the ANCE, CSA Group a

45、nd UL versions of the standard. While the technical content is the same in each organizations version, the format and presentation may differ. Reasons for differences from IEC National differences from the IEC are being added in order to address safety and regulatory situations present in the US, Ca

46、nada and Mexico. Interpretations The interpretation by the standards 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

47、one interpretation of the literal text has been identied, a revision is to be proposed as soon as possible to each of the standards development organizations to more accurately reect the intent. IEC Copyright For ANCE, the text, gures, and tables of International Electrotechnical Commission Publicat

48、ion 60947-7-3, Low-Voltage Switchgear and Controlgear Part 7-3: Ancillary Equipment Safety Requirements for Fuse Terminal Blocks, are used in this standard according to the guidelines provided in the ISO/IEC/POCOSA. JANUARY 27, 2017 NMX-J-538/7-3-ANCE CAN/CSA-C22.2 NO. 60947-7-3:17 UL 60947-7-3 6UL

49、COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL For CSA Group, the text, gures, and tables of International Electrotechnical Commission Publication 60947-7-3, Low-Voltage Switchgear and Controlgear Part 7-3: Ancillary Equipment Safety Requirements for Fuse Terminal Blocks, copyright 2002, are used in this standard with the consent of the International Elec

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