UL 60947-7-1-2011 UL Standard for Safety Low-voltage switchgear and controlgear - Part 7-1 Ancillary equipment - Terminal blocks for copper conductors (Third Edition Reprint with r.pdf

1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULUL 60947-7-1Low-voltage switchgear andcontrolgear Part 7-1:Ancillary equipment Terminalblocks for copper conductorsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION W

2、ITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULLow-voltage switchgear and controlgear Part 7-1: Ancillary equipment Terminal blocks for copperconductors, UL 60947-7-1Third Edition, Dated May 6, 2011Summary of TopicsTh

3、is revision of ANSI/UL 60947-7-1 is to add the ANSI approval date to the title page. Thisstandard is a bi-national IEC-based standard that is harmonized for Mexico and the UnitedStates, and co-published by both standards development organizations (ANCE and UL).All rights reserved. No part of this pu

4、blication may be reproduced, stored in a retrieval system, ortransmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwisewithout prior permission of UL.UL provides this Standard as is without warranty of any kind, either expressed or implied, including butnot li

5、mited to, the implied warranties of merchantability or fitness for any purpose.In no event will UL be liable for any special, incidental, consequential, indirect or similar damages,including loss of profits, lost savings, loss of data, or any other damages arising out of the use of or theinability t

6、o use this Standard, even if UL or an authorized UL representative has been advised of thepossibility of such damage. In no event shall ULs liability for any damage ever exceed the price paid forthis Standard, regardless of the form of the claim.Users of the electronic versions of ULs Standards for

7、Safety agree to defend, indemnify, and hold ULharmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonableattorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronicStandard on the purchasers computer system.Th

8、e requirements in this Standard are now in effect, except for those paragraphs, sections, tables, figures,and/or other elements of the Standard having future effective dates as indicated in the preface. The priortext for requirements that have been revised and that have a future effective date are l

9、ocated after theStandard, and are preceded by a SUPERSEDED REQUIREMENTS notice.OCTOBER 14, 2011 UL 60947-7-1 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULOCTOBER 14, 2011 UL 60947-7-1tr2No Text on This PageUL COPYRIGHTED MATERIAL NOT AUT

10、HORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULAssociation of Standardization and CertificationNMX-J-538/7-1-ANCEFirst EditionUnderwriters Laboratories Inc.UL 60947-7-1Third EditionLow-voltage switchgear and controlgear Part 7-1: Ancillaryequipment Terminal blocks for copp

11、er conductorsMay 6, 2011(Title Page Reprinted: October 14, 2011)ANSI/UL 60947-7-1-2011UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCommitment for AmendmentsThis standard is issued jointly by the Association of Standardization and Certificat

12、ion (ANCE) andUnderwriters Laboratories Inc. (UL). Comments or proposals for revisions on any part of the standardmay be submitted to ANCE or UL at anytime. Revisions to this standard will be made only afterprocessing according to the standards development procedures of ANCE and UL. UL will issuerev

13、isions 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 UL pages.Copyright 2011 ANCERights reserved in favor of ANCE.Copyright 2011 Un

14、derwriters Laboratories Inc.ULs Standards for Safety are copyrighted by UL. Neither a printed 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.Thi

15、s ANSI/UL Standard for Safety consists of the Third Edition including revisions through May 6, 2011.The most recent designation of ANSI/UL 60947-7-1 as an American National Standard (ANSI) occurredon May 6, 2011. ANSI approval for a standard does not include the Cover Page, Transmittal Pages,Title P

16、age (front and back), or the Preface. The National Difference Page and IEC Foreword are alsoexcluded 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 i

17、n ULs On-Line Collaborative StandardsDevelopment System (CSDS) at http:/.To purchase UL Standards, visit Comm 2000 at http:/m- call toll-free 1-888-853-3503.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCONTENTSPreface .5NATIONAL DIFFERENCES

18、 .7FOREWORD 81 General .101.1 Scope 101.2 Normative references 112 Definitions 113 Classification 124 Characteristics .124.1 Summary of characteristics .124.2 Type of terminal block .134.3 Rated and limiting values .135 Product information 165.1 Marking 165.2 Additional information 166 Normal servic

19、e, mounting and transport conditions .177 Constructional and performance requirements .177.1 Constructional requirements 177.1.5DV.1 Insulation .217.2 Performance requirements 227.3 Electromagnetic compatibility (EMC) .258 Tests .258.1 Kinds of test 258.2 General 258.3 Verification of mechanical cha

20、racteristics .278.4 Verification of electrical characteristics .328.5 Verification of thermal characteristics 438.6 Verification of EMC characteristics .45Annex A (informative) Clearances and creepage distancesA.1 General .46A.2 Determination of clearances and creepage distances .46MAY 6, 2011 NMX-J

21、-538/7-1-ANCE UL 60947-7-1 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULAnnex B (informative) Items subject to agreement between manufacturer and userAnnex C (normative) Tightening torques for the verification of the mechanical strength of

22、screw-type clamping unitsAnnex DVA (normative) Aluminum RequirementsDVA.1 Scope .50DVA.2 Characteristics .50DVA.3 Markings 50DVA.4 Constructional requirements .50DVA.5 Performance requirements .51Annex DVB (normative) Normative ReferencesBibliographyMAY 6, 2011NMX-J-538/7-1-ANCE UL 60947-7-14UL COPY

23、RIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULPrefaceThis is the common ANCE and UL standard for Low-Voltage Switchgear and Controlgear Part 7-1:Ancillary Equipment Terminal blocks for copper conductors. It is the first edition ofNMX-J-538/7-1-ANCE

24、 and the second edition of UL 60947-7-1. This edition of UL 60947-7-1 supersedesthe previous edition published in 2004.This standard is based on IEC Publication 60947-7-1: Edition 2 (2002), Low-voltage switchgear andcontrolgear Part 7-1: Ancillary equipment Terminal blocks for copper conductors, as

25、revised bycorrigendum (March 2003). IEC publication 60947-7-1 is copyrighted by the IEC.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 th

26、e Technical Harmonization Committee for Industrial Control Equipment, of the Council on theHarmonization of Electrotechnical Standards of the Nations of the Americas (CANENA), are gratefullyacknowledged.This Standard is considered suitable for use for conformity assessment within the stated scope of

27、 theStandard.The Mexican Standard was developed by the CT PIE-A from the Comite de Normalizacion de laAsociacion de Normalizacion y Certificacion, A.C., CONANCE, with the collaboration of the manufacturersand users.This standard has been approved by the American National Standards Institute (ANSI) a

28、s an AmericanNational Standard.Where reference is made to a specific number of samples to be tested, the specified number isconsidered 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 theresponsibility

29、 of the users of the standard to judge its suitability for their particular purpose.Level of harmonizationThis standard adopts the IEC text with national differences.This standard is published as an equivalent standard for ANCE and UL.An equivalent standard is a standard that is substantially the sa

30、me in technical content, except as follows: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,

31、 scientific justification, or the level of protection thatthe country considers appropriate. Presentation is word for word except for editorial changes.All national differences from the IEC text are included in the (ANCE and/or UL) versions of the standard.While the technical content is the same in

32、each organizations version, the format and presentation maydiffer.MAY 6, 2011 NMX-J-538/7-1-ANCE UL 60947-7-1 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULReasons for differences from IECThis standard adopts the IEC text with national diff

33、erences. Throughout the standard, national differenceshave been identified for the countries to which they apply. These differences are necessary in order tomaintain compliance with existing nationally based codes and regulations, or to take into account essentialsafety practices or market based pre

34、ferences.InterpretationsThe interpretation by the standards development organization of an identical or equivalent standard isbased on the literal text to determine compliance with the standard in accordance with the proceduralrules of the standards development organization. If more than one interpr

35、etation 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.ANCE effective dateThe effective date for ANCE will be announced through the Diario Oficial de la Federacin (Offici

36、alGazette) and is indicated on the cover page.UL effective dateAs of May 6, 2011 all products Listed or Recognized by UL must comply with the requirements in thisstandard.A UL effective date is one established by Underwriters Laboratories Inc. and is not part of the ANSIapproved standard.IEC Copyrig

37、htFor ANCE, the text, figures, and tables of International Electrotechnical Commission Publication60947-7-1, Low-Voltage Switchgear and Controlgear Part 71: Ancillary Equipment Terminal Blocksfor Copper Conductors, are used in this standard according to the guidelines provided in theISO/IEC/POCOSA.F

38、or UL, the text, figures and tables of IEC publication 60947-7-1, Low-Voltage Switchgear andControlgear Part 7-1: Ancillary Equipment Terminal Blocks for Copper Conductors copyright 2002 areused in this Standard with the consent of the IEC and the American National Standards Institute (ANSI).The IEC

39、 copyrighted material has been reproduced with permission from ANSI. ANSI should be contactedregarding the reproduction of any portion of the IEC material. The IEC Foreword and Introduction are nota part of the requirements of this Standard but are included for information purposes only. Copies of I

40、ECPublication 60947-7-1 may be purchased from ANSI, 25 West 43rd Street, 4th Floor, New York, NewYork, 10036, (212) 642-4900.MAY 6, 2011NMX-J-538/7-1-ANCE UL 60947-7-16UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNATIONAL DIFFERENCESGENERAL

41、National Differences from the text of International Electrotechnical Commission (IEC) Publication60947-7-1, Ancillary equipment - Terminal blocks for copper conductors, second edition (2002), areindicated by notations (differences) and are presented in bold text.There are five types of National Diff

42、erences as noted below. The difference type is noted on the first lineof the National Difference in the standard. The standard may not include all types of these NationalDifferences.DR These are National Differences based on the national regulatory requirements.D1 These are National Differences whic

43、h are based on basic safety principles and requirements,elimination of which would compromise safety for consumers and users of products.D2 These are national differences from IEC requirements based on existing safety practices. Theserequirements reflect national safety practices, where empirical su

44、bstantiation (for the IEC or nationalrequirement) is not available or the text has not been included in the IEC standard.DC These are National Differences based on the component standards and will not be deleted untila particular component standard is harmonized with the IEC component standard.DE Th

45、ese are National Differences based on editorial comments or corrections.Each national difference contains a description of what the national difference entails. Typically one of thefollowing words is used to explain how the text of the national difference is to be applied to the base IECtext:Additio

46、n / Add - An addition entails adding a complete new numbered clause, subclause, table, figure,or annex. Addition is not meant to include adding select words to the base IEC text.Replacement / Replace A replacement entails replacement of an entire clause, subclause, paragraph,table, figure, or annex

47、with a new clause, subclause, paragraph, table, figure, or annex.Modification / Modify - A modification is an altering of the existing base IEC text such as the addition,replacement or deletion of certain words or the replacement of an entire clause, subclause, table, figure,or annex of the base IEC

48、 text.Deletion / Delete - A deletion entails complete deletion of an entire numbered clause, subclause, table,figure, or annex without any replacement text.MAY 6, 2011 NMX-J-538/7-1-ANCE UL 60947-7-1 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION F

49、ROM ULINTERNATIONAL ELECTROTECHNICAL COMMISSIONLOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR Part 7-1: Ancillary equipment Terminalblocks for copper conductorsFOREWORD1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising all nationalelectrotechnical committees (IEC National Committees). The object of the IEC is to promote international co-operation on allquestions concerning standardization in the elect