IEC 60947-2-2016 Low-voltage switchgear and controlgear - Part 2 Circuit-breakers《低压开关设备和控制设备.第2部分 断路器》.pdf

1、 IEC 60947-2 Edition 5.0 2016-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Low-voltage switchgear and controlgear Part 2: Circuit-breakers Appareillage basse tension Partie 2: Disjoncteurs IEC 60947-2:2016-06(en-fr) colour inside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2016 IEC, Geneva,

2、Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or IECs member National Committee in the c

3、ountry of the requester. If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local IEC member National Committee for further information. Droits de reproduction rservs. Sauf indication contra

4、ire, aucune partie de cette publication ne peut tre reproduite ni utilise sous quelque forme que ce soit et par aucun procd, lectronique ou mcanique, y compris la photocopie et les microfilms, sans laccord crit de lIEC ou du Comit national de lIEC du pays du demandeur. Si vous avez des questions sur

5、 le copyright de lIEC ou si vous dsirez obtenir des droits supplmentaires sur cette publication, utilisez les coordonnes ci-aprs ou contactez le Comit national de lIEC de votre pays de rsidence. IEC Central Office Tel.: +41 22 919 02 11 3, rue de Varemb Fax: +41 22 919 03 00 CH-1211 Geneva 20 infoie

6、c.ch Switzerland www.iec.ch About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electrical, electronic and related technologies. About IEC publications The technical content of IEC publicatio

7、ns is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigenda or an amendment might have been published. IEC Catalogue - webstore.iec.ch/catalogue The stand-alone application for consulting the entire bibliographical information on IEC International Sta

8、ndards, Technical Specifications, Technical Reports and other documents. Available for PC, Mac OS, Android Tablets and iPad. IEC publications search - www.iec.ch/searchpub The advanced search enables to find IEC publications by a variety of criteria (reference number, text, technical committee,). It

9、 also gives information on projects, replaced and withdrawn publications. IEC Just Published - webstore.iec.ch/justpublished Stay up to date on all new IEC publications. Just Published details all new publications released. Available online and also once a month by email. Electropedia - www.electrop

10、edia.org The worlds leading online dictionary of electronic and electrical terms containing 20 000 terms and definitions in English and French, with equivalent terms in 15 additional languages. Also known as the International Electrotechnical Vocabulary (IEV) online. IEC Glossary - std.iec.ch/glossa

11、ry 65 000 electrotechnical terminology entries in English and French extracted from the Terms and Definitions clause of IEC publications issued since 2002. Some entries have been collected from earlier publications of IEC TC 37, 77, 86 and CISPR. IEC Customer Service Centre - webstore.iec.ch/csc If

12、you wish to give us your feedback on this publication or need further assistance, please contact the Customer Service Centre: csciec.ch. A propos de lIEC La Commission Electrotechnique Internationale (IEC) est la premire organisation mondiale qui labore et publie des Normes internationales pour tout

13、 ce qui a trait llectricit, llectronique et aux technologies apparentes. A propos des publications IEC Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possdez ldition la plus rcente, un corrigendum ou amendement peut avoir t publi. Catalogue IEC - webst

14、ore.iec.ch/catalogue Application autonome pour consulter tous les renseignements bibliographiques sur les Normes internationales, Spcifications techniques, Rapports techniques et autres documents de lIEC. Disponible pour PC, Mac OS, tablettes Android et iPad. Recherche de publications IEC - www.iec.

15、ch/searchpub La recherche avance permet de trouver des publications IEC en utilisant diffrents critres (numro de rfrence, texte, comit dtudes,). Elle donne aussi des informations sur les projets et les publications remplaces ou retires. IEC Just Published - webstore.iec.ch/justpublished Restez infor

16、m sur les nouvelles publications IEC. Just Published dtaille les nouvelles publications parues. Disponible en ligne et aussi une fois par mois par email. Electropedia - www.electropedia.org Le premier dictionnaire en ligne de termes lectroniques et lectriques. Il contient 20 000 termes et dfinitions

17、 en anglais et en franais, ainsi que les termes quivalents dans 15 langues additionnelles. Egalement appel Vocabulaire Electrotechnique International (IEV) en ligne. Glossaire IEC - std.iec.ch/glossary 65 000 entres terminologiques lectrotechniques, en anglais et en franais, extraites des articles T

18、ermes et Dfinitions des publications IEC parues depuis 2002. Plus certaines entres antrieures extraites des publications des CE 37, 77, 86 et CISPR de lIEC. Service Clients - webstore.iec.ch/csc Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez

19、-nous: csciec.ch. IEC 60947-2 Edition 5.0 2016-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Low-voltage switchgear and controlgear Part 2: Circuit-breakers Appareillage basse tension Partie 2: Disjoncteurs INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 29.

20、130.20 ISBN 978-2-8322-3355-9 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obten

21、u cette publication via un distributeur agr. colour inside 2 IEC 60947-2:2016 IEC 2016 CONTENTS FOREWORD 14 1 General . 16 1.1 Scope and object 16 1.2 Normative references 17 2 Terms and definitions 18 3 Classification . 22 4 Characteristics of circuit-breakers 23 4.1 Summary of characteristics . 23

22、 4.2 Type of circuit-breaker 23 4.3 Rated and limiting values of the main circuit 23 4.3.1 General 23 4.3.2 Rated voltages . 23 4.3.3 Currents . 24 4.3.4 Rated frequency . 24 4.3.5 Rated duty . 24 4.3.6 Short-circuit characteristics 24 4.4 Selectivity categories 27 4.5 Control circuits 27 4.5.1 Elec

23、trical control circuits 27 4.5.2 Air-supply control circuits (pneumatic or electro-pneumatic) 27 4.6 Auxiliary circuits 27 4.7 Releases 28 4.7.1 Types 28 4.7.2 Characteristics . 28 4.7.3 Current setting of over-current releases 28 4.7.4 Tripping time setting of over-current releases . 29 4.8 Integra

24、l fuses (integrally fused circuit-breakers) 29 5 Product information . 29 5.1 Nature of the information . 29 5.2 Marking 29 5.3 Instructions for installation, operation and maintenance . 31 6 Normal service, mounting and transport conditions 31 7 Constructional and performance requirements . 31 7.1

25、Constructional requirements 31 7.1.1 General 31 7.1.2 Withdrawable circuit-breakers 31 7.1.3 Additional requirements for circuit-breakers suitable for isolation 32 7.1.4 Clearances and creepage distances . 32 7.1.5 Requirements for the safety of the operator 32 7.1.6 List of construction breaks . 32

26、 7.1.7 Additional requirements for circuit-breakers provided with a neutral pole . 33 7.1.8 Digital inputs and outputs for use with programmable logic controllers (PLCs) . 33 7.2 Performance requirements 33 7.2.1 Operating conditions 33 IEC 60947-2:2016 IEC 2016 3 7.2.2 Temperature-rise . 36 7.2.3 D

27、ielectric properties . 37 7.2.4 Ability to make and break under no load, normal load and overload conditions 37 7.2.5 Ability to make and break under short-circuit conditions 38 7.2.6 Vacant . 39 7.2.7 Additional requirements for circuit-breakers suitable for isolation 39 7.2.8 Specific requirements

28、 for integrally fused circuit-breakers. 39 7.2.9 Co-ordination between a circuit-breaker and another short-circuit protective device 39 7.3 Electromagnetic compatibility (EMC) . 39 8 Tests . 39 8.1 Kind of tests 39 8.1.1 General 39 8.1.2 Type tests 39 8.1.3 Routine tests 40 8.2 Compliance with const

29、ructional requirements 40 8.3 Type tests . 40 8.3.1 Test sequences 40 8.3.2 General test conditions 48 8.3.3 Test sequence I: General performance characteristics 56 8.3.4 Test sequence II: Rated service short-circuit breaking capacity 65 8.3.5 Test sequence III: Rated ultimate short-circuit breaking

30、 capacity 66 8.3.6 Test sequence IV: Rated short-time withstand current 68 8.3.7 Test sequence V: Performance of integrally fused circuit-breakers 69 8.3.8 Test sequence VI: combined test sequence 71 8.3.9 Critical d.c. load current test . 73 8.4 Routine tests 74 8.4.1 General 74 8.4.2 Mechanical op

31、eration tests . 74 8.4.3 Verification of the calibration of overcurrent releases 75 8.4.4 Verification of the operation of undervoltage and shunt releases . 75 8.4.5 Additional tests for CBRs . 75 8.4.6 Dielectric tests . 76 8.4.7 Test for the verification of clearances less than those corresponding

32、 to case A of Table 13 of IEC 60947-1:2007 77 8.5 Special tests Damp heat, salt mist, vibration and shock 77 Annex A (normative) Co-ordination between a circuit-breaker and another short- circuit protective device associated in the same circuit 79 A.1 General 79 A.2 Scope and object 79 A.3 General r

33、equirements for the co-ordination of a circuit-breaker with another SCPD . 80 A.3.1 General considerations 80 A.3.2 Take-over current . 80 A.3.3 Behaviour of C 1in association with another SCPD . 80 A.4 Type and characteristics of the associated SCPD 80 A.5 Verification of selectivity . 81 A.5.1 Gen

34、eral 81 A.5.2 Consideration of selectivity by desk study . 81 4 IEC 60947-2:2016 IEC 2016 A.5.3 Selectivity determined by test . 82 A.6 Verification of back-up protection 83 A.6.1 Determination of the take-over current 83 A.6.2 Verification of back-up protection . 83 A.6.3 Tests for verification of

35、back-up protection . 83 A.6.4 Results to be obtained . 84 Annex B (normative) Circuit-breakers incorporating residual current protection 90 B.1 General 90 B.1.1 Preamble . 90 B.1.2 Scope and object . 90 B.2 Terms and definitions 91 B.2.1 Terms and definitions relating to currents flowing from live p

36、arts to earth 91 B.2.2 Terms and definitions relating to the energization of a CBR 91 B.2.3 Terms and definitions relating to the operation and the functions of a CBR 92 B.2.4 Terms and definitions relating to values and ranges of energizing quantities . 93 B.3 Classification 94 B.3.1 Classification

37、 according to the method of operation of the residual current function 94 B.3.2 Classification according to the possibility of adjusting the residual operating current . 94 B.3.3 Classification according to time-delay of the residual current function . 94 B.3.4 Classification according to behaviour

38、in presence of a d.c. component 94 B.4 Characteristics of CBRs concerning their residual current function . 94 B.4.1 Rated values 94 B.4.2 Preferred and limiting values 95 B.4.3 Value of the rated residual short-circuit making and breaking capacity (I m ) . 96 B.4.4 Operating characteristics in case

39、 of an earth fault current in the presence or absence of a d.c. component 96 B.5 Marking 96 B.6 Normal service, mounting and transport conditions 97 B.7 Design and operating requirements . 98 B.7.1 Design requirements 98 B.7.2 Operating requirements 98 B.7.3 Electromagnetic compatibility . 100 B.8 T

40、ests 100 B.8.1 General 100 B.8.2 Verification of the operating characteristic 103 B.8.3 Verification of dielectric properties 105 B.8.4 Verification of the operation of the test device at the limits of rated voltage 105 B.8.5 Verification of the limiting value of the non-operating current under over

41、-current conditions 105 B.8.6 Verification of the resistance against unwanted tripping due to surge currents resulting from impulse voltages 106 B.8.7 Verification of the behaviour of CBRs of type A in the case of an earth fault current comprising a d.c. component 107 IEC 60947-2:2016 IEC 2016 5 B.8

42、.8 Verification of the behaviour of CBRs functionally dependent on line voltage classified under B.3.1.2.1 . 108 B.8.9 Verification of the behaviour of CBRs functionally dependent on line voltage as classified under B.3.1.2.2 in the case of failure of line voltage 109 B.8.10 Verification of the resi

43、dual short-circuit making and breaking capacity 110 B.8.11 Verification of the effects of environmental conditions . 111 B.8.12 Verification of electromagnetic compatibility . 111 B.8.13 Test for variations or interruptions of voltage and for voltage dips . 113 Annex C (normative) Individual pole sh

44、ort-circuit test sequence 121 C.1 General 121 C.2 Test of individual pole short-circuit breaking capacity 121 C.3 Verification of dielectric withstand . 121 C.4 Verification of overload releases . 121 Annex D Vacant 122 Annex E (informative) Items subject to agreement between manufacturer and user 1

45、23 Annex F (normative) Additional tests for circuit-breakers with electronic over-current protection . 124 F.1 General 124 F.2 List of tests . 124 F.2.1 General 124 F.2.2 Electromagnetic compatibility (EMC) tests 124 F.2.3 Suitability for multiple frequencies 125 F.2.4 Dry heat test 125 F.2.5 Damp h

46、eat test 125 F.2.6 Temperature variation cycles at a specified rate of change . 125 F.3 General test conditions . 125 F.3.1 General 125 F.3.2 Electromagnetic compatibility tests . 125 F.4 Immunity tests 126 F.4.1 Harmonic currents 126 F.4.2 Electrostatic discharges . 127 F.4.3 Radiated RF electromag

47、netic fields 127 F.4.4 Electrical fast transient/burst (EFT/B) . 127 F.4.5 Surges . 128 F.4.6 Conducted disturbances induced by RF fields (common mode) . 128 F.4.7 Current dips . 128 F.5 Emission tests 129 F.5.1 Harmonics . 129 F.5.2 Voltage fluctuations 129 F.5.3 Conducted RF disturbances (150 kHz

48、to 30 MHz) . 129 F.5.4 Radiated RF disturbances (30 MHz to 1 GHz) . 129 F.6 Suitability for multiple frequencies . 130 F.6.1 General 130 F.6.2 Test conditions. 130 F.6.3 Test procedure . 130 F.6.4 Test results 130 F.7 Dry heat test . 131 F.7.1 Test procedure . 131 6 IEC 60947-2:2016 IEC 2016 F.7.2 T

49、est results 131 F.7.3 Verification of overload releases 131 F.8 Damp heat test . 131 F.8.1 Test procedure . 131 F.8.2 Verification of overload releases 131 F.9 Temperature variation cycles at a specified rate of change 131 F.9.1 Test conditions. 131 F.9.2 Test procedure . 132 F.9.3 Test results 132 F.9.4 Verification of overload releases 132 Annex G (normative) Power loss 145 G.1 General 145 G.2 Test methods 145 G.2.1 General case . 145 G.2.2 AC circuit-breaker