ANSI UL 60947-7-2-2017 UL Standard for Safety Low-Voltage Switchgear and Controlgear C Part 7-2 Ancillary Equipment C Protective Conductor Terminal Blocks for Copper Conductors (Fo.pdf

1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 60947-7-2 Low-Voltage Switchgear and Controlgear Part 7-2: Ancillary Equipment Protective Conductor Terminal Blocks for Copper Conductors STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHO

2、RIZED FOR FURTHER 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 7-2: Ancillary Equipment Protective Conductor Terminal Blocks for Copper Con

3、ductors, UL 60947-7-2 Fourth Edition, Dated January 27, 2017 Summary of Topics This revision of ANSI/UL 60947-7-2 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 organiza

4、tions (CSA Group, ANCE and UL). 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 with

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9、r requirements that have been revised and that have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. JANUARY 27, 2017 UL 60947-7-2 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM U

10、L JANUARY 27, 2017 UL 60947-7-2 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-538/7-2-ANCE First Edition CSA Group CAN/CSA-C22.2 No. 60947-7-2:17 First Edition (I

11、EC 60947-7-2:2002, MOD) Underwriters Laboratories Inc. UL 60947-7-2 Fourth Edition Low-Voltage Switchgear and Controlgear Part 7-2: Ancillary Equipment Protective Conductor Terminal Blocks for Copper Conductors January 27, 2017 This national standard is based on publication IEC 60947-7-2, second edi

12、tion (2002). ANSI/UL 60947-7-2-2017 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 Ass

13、ociation (operating 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 pr

14、ocedures of ANCE, 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 Grou

15、p and UL pages. Copyright 2011 ANCE Rights reserved in favor of ANCE. ISBN 978-1-4883-0020-2 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

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19、nsists of the Fourth Edition including revisions through January 27, 2017. The most recent designation of ANSI/UL 60947-7-2 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 bac

20、k), or the Preface. 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 C

21、ollaborative Standards 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 . 4 NATIONAL DIFFERENCES . 7

22、 FOREWORD 8 1 General .10 1.1 Scope 10 1.2 Normative references .11 2 Denitions 11 3 Classication 12 4 Characteristics .13 4.1 Summary of characteristics .13 4.2 Type of protective conductor terminal block .13 4.3 Rated and limiting values .13 5 Product information 14 5.1 Marking 14 5.2 Additional i

23、nformation 15 6 Normal service, mounting and transport conditions .16 7 Constructional and performance requirements .16 7.1 Constructional and performance requirements 16 7.2 Performance requirements 18 7.3 Electromagnetic compatibility (EMC) .19 8 Tests .19 8.1 Kinds of test 19 8.2 General 20 8.3 V

24、erication of mechanical characteristics .21 8.4 Verication of electrical characteristics .22 8.5 Verication of thermal characteristics 30 8.6 Verication of EMC characteristics .30 Annex A (normative) Maximum short-time withstand currents allocated to the rail prole and thermal rated current of a PEN

25、 busbar Annex B (normative) Tightening torques for the verication of the mechanical strength of screw-type clamping units Annex DVA (normative) Standards references JANUARY 27, 2017 NMX-J-538/7-2-ANCE CAN/CSA-C22.2 NO. 60947-7-2:17 UL 60947-7-2 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REP

26、RODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Preface This is the harmonized ANCE, CSA Group, and UL standard for Low-Voltage Switchgear and Controlgear Part 7-2: Ancillary Equipment Protective Conductor Terminal Blocks for Copper Conductors. It is the rst edition of NMX-J-538/7-2-ANCE, the r

27、st edition of CAN/CSA No. 60947-7-2, and the fourth edition of UL 60947-7-2. This edition of UL 60947-7-2 supersedes the previous edition(s) published on May 6, 2011. This harmonized standard is based on IEC Publication 60947-7-2: Edition 2 (2002), Low-voltage switchgear and controlgear Part 7-2: An

28、cillary equipment Protective conductor terminal blocks for copper conductors. IEC 60947-7-2 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 th

29、e Technical Harmonization Committee for Industrial 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

30、 of the Standard. The Mexican Standard was 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, unde

31、r 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 Committee. This standard has been approved as a National Standard of Canada by the Standards Co

32、uncil of Canada (SCC). This standard has 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: Al

33、though 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. NMX-J-538/7-2-ANCE, Standard for Safety for Low-Voltage Switchgear and Contr

34、olgear Part 7-2: Ancillary Equipment Protective Conductor Terminal Blocks for Copper Conductors is to be used in conjunction with the rst edition of NMX-J-538/7-1-ANCE. The requirements for Ancillary Equipment Protective Conductor Terminal Blocks for Copper Conductors are contained in this Part 2 St

35、andard and NMX-J-538/7-1-ANCE. Requirements of this Part 2 Standard, where 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-538/7-2-ANCE, the NMX-J-538/7-1-ANCE subclause applies. JANUARY 27, 2017 NMX-J-538/7-2-ANCE CA

36、N/CSA-C22.2 NO. 60947-7-2:17 UL 60947-7-2 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL This CAN/CSA-C22.2 No. 60947-7-2, Standard for Safety for Low-Voltage Switchgear and Controlgear Part 7-2: Ancillary Equipment Protective Conductor Te

37、rminal Blocks for Copper Conductors, is to be used in conjunction with the rst edition of CAN/CSA-C22.2 No. 60947-7-1. The requirements for Ancillary Equipment Protective Conductor Terminal Blocks for Copper Conductors are contained in this Part 2 Standard and CAN/CSA-C22.2 No. 60947-7-1. Requiremen

38、ts of this Part 2 Standard, where stated, amend the requirements of CAN/CSA C22.2 No. 60947-7-1. Where a particular subclause of CAN/CSA-C22.2 No. 60947-7-1 is not mentioned in CAN/CSA-C22.2 No. 60947-7-2, the CAN/CSA-C22.2 No. 60947-7-1 subclause applies. This UL 60947-7-2, Standard for Safety for

39、Low-Voltage Switchgear and Controlgear Part 7-2: Ancillary Equipment Protective Conductor Terminal Blocks for Copper Conductor, is to be used in conjunction with the fourth edition of UL 60947-7-1. The requirements for Ancillary Equipment Protective Conductor Terminal Blocks for Copper Conductor are

40、 contained in this Part 2 Standard and UL 60947-7-1. Requirements of this Part 2 Standard, where stated, amend the requirements of UL 60947-7-1. Where a particular subclause of UL 60947-7-1 is not mentioned in UL 60947-7-2, the UL 60947-7-1 subclause applies. Level of harmonization This standard ado

41、pts the IEC text with national differences. This standard is published as an equivalent standard for ANCE, CSA Group, and UL. 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 governme

42、ntal 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 level of protection that the country considers appropriate. Presentation is

43、word for word except for editorial changes. All national differences from the IEC text are included in the ANCE, CSA Group and 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

44、National differences from the IEC are being added in order to address safety and regulatory situations present in the US, Canada and Mexico. Interpretations The interpretation by the standards development organization of an identical or equivalent standard is based on the literal text to determine c

45、ompliance 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 revision is to be proposed as soon as possible to each of the standards development organizations to more accurately

46、 reect the intent. IEC Copyright For ANCE, the text, gures, and tables of International Electrotechnical Commission Publication 60947-7-2, Low-Voltage Switchgear and Controlgear Part 7-2: Ancillary Equipment Protective Conductor Terminal Blocks for Copper Conductor, are used in this standard accordi

47、ng to the guidelines provided in the ISO/IEC/POCOSA. JANUARY 27, 2017 NMX-J-538/7-2-ANCE CAN/CSA-C22.2 NO. 60947-7-2:17 UL 60947-7-2 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL For CSA Group, the text, gures, and tables of International

48、 Electrotechnical Commission Publication 60947-7-2, Low-Voltage Switchgear and Controlgear Part 7-2: Ancillary Equipment Protective Conductor Terminal Blocks for Copper Conductor, copyright 2002, are used in this standard with the consent of the International Electrotechnical Commission. The IEC For

49、eword is not a part of the requirements of this standard but is included for information purposes only. For UL, the text, gures and tables of IEC publication 60947-7-2, Low-Voltage Switchgear and Controlgear Part 7-2: Ancillary Equipment Protective Conductor Terminal Blocks for Copper Conductor copyright 2002 are used in this Standard with the consent of the IEC and the American National Standards Institute (ANSI).