IEC 60269-3-2010 Low-voltage fuses - Part 3 Supplementary requirements for fuses for use by unskilled persons (fuses mainly for household or similar application.pdf

1、 IEC 60269-3Edition 4.0 2010-05INTERNATIONAL STANDARD NORME INTERNATIONALELow-voltage fuses Part 3: Supplementary requirements for fuses for use by unskilled persons (fuses mainly for household and similar applications) Examples of standardized systems of fuses A to F Fusibles basse tension Partie 3

2、 Exigences supplmentaires pour les fusibles destins tre utiliss par des personnes non qualifies (fusibles pour usages essentiellement domestiques et analogues) Exemples de systmes de fusibles normaliss A F IEC60269-3:2010 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2010 IEC, Geneva, Switzerla

3、nd 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 country of

4、 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 contraire, aucu

5、ne 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 la CEI ou du Comit national de la CEI du pays du demandeur. Si vous avez des questions sur le c

6、opyright de la CEI ou si vous dsirez obtenir des droits supplmentaires sur cette publication, utilisez les coordonnes ci-aprs ou contactez le Comit national de la CEI de votre pays de rsidence. IEC Central Office 3, rue de Varemb CH-1211 Geneva 20 Switzerland Email: inmailiec.ch Web: www.iec.ch Abou

7、t 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 publications is kept under constant review

8、 by the IEC. Please make sure that you have the latest edition, a corrigenda or an amendment might have been published. Catalogue of IEC publications: www.iec.ch/searchpub The IEC on-line Catalogue enables you to search by a variety of criteria (reference number, text, technical committee,). It also

9、 gives information on projects, withdrawn and replaced publications. IEC Just Published: www.iec.ch/online_news/justpub Stay up to date on all new IEC publications. Just Published details twice a month all new publications released. Available on-line and also by email. Electropedia: www.electropedia

10、org The worlds leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions in English and French, with equivalent terms in additional languages. Also known as the International Electrotechnical Vocabulary online. Customer Service Centre: www.iec.ch

11、/webstore/custserv If you wish to give us your feedback on this publication or need further assistance, please visit the Customer Service Centre FAQ or contact us: Email: csciec.ch Tel.: +41 22 919 02 11 Fax: +41 22 919 03 00 A propos de la CEI La Commission Electrotechnique Internationale (CEI) est

12、 la premire organisation mondiale qui labore et publie des normes internationales pour tout ce qui a trait llectricit, llectronique et aux technologies apparentes. A propos des publications CEI Le contenu technique des publications de la CEI est constamment revu. Veuillez vous assurer que vous possd

13、ez ldition la plus rcente, un corrigendum ou amendement peut avoir t publi. Catalogue des publications de la CEI: www.iec.ch/searchpub/cur_fut-f.htm Le Catalogue en-ligne de la CEI vous permet deffectuer des recherches en utilisant diffrents critres (numro de rfrence, texte, comit dtudes,). Il donne

14、 aussi des informations sur les projets et les publications retires ou remplaces. Just Published CEI: www.iec.ch/online_news/justpub Restez inform sur les nouvelles publications de la CEI. Just Published dtaille deux fois par mois les nouvelles publications parues. Disponible en-ligne et aussi par e

15、mail. Electropedia: www.electropedia.org Le premier dictionnaire en ligne au monde de termes lectroniques et lectriques. Il contient plus de 20 000 termes et dfinitions en anglais et en franais, ainsi que les termes quivalents dans les langues additionnelles. Egalement appel Vocabulaire Electrotechn

16、ique International en ligne. Service Clients: www.iec.ch/webstore/custserv/custserv_entry-f.htm Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions, visitez le FAQ du Service clients ou contactez-nous: Email: csciec.ch Tl.: +41 22 919 02 11 Fax: +41 22 919

17、 03 00 IEC 60269-3Edition 4.0 2010-05INTERNATIONAL STANDARD NORME INTERNATIONALELow-voltage fuses Part 3: Supplementary requirements for fuses for use by unskilled persons (fuses mainly for household and similar applications) Examples of standardized systems of fuses A to F Fusibles basse tension Pa

18、rtie 3: Exigences supplmentaires pour les fusibles destins tre utiliss par des personnes non qualifies (fusibles pour usages essentiellement domestiques et analogues) Exemples de systmes de fusibles normaliss A F INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE XG

19、ICS 29.120.50 PRICE CODECODE PRIXISBN 978-2-88910-088-0 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 2 60269-3 IEC:2010 CONTENTS FOREWORD.12 INTRODUCTION.14 1 General scope 15 1.2 Normative references 15 Fuse syst

20、em A D type fuse system .16 1 General 16 1.1 Scope16 2 Terms and definitions .16 3 Conditions for operation in service16 4 Classification16 5 Characteristics of fuses 16 5.2 Rated voltage16 5.3.1 Rated current of the fuse-link.17 5.3.2 Rated current of the fuse-holder 17 5.3.3 Rated current of the g

21、auge-piece.17 5.5 Rated power dissipation of a fuse-link and rated acceptable power dissipation of a fuse-holder .17 5.6 Limits of time-current characteristics .17 5.6.1 Time-current characteristics, time-current zones and overload curves .17 5.6.2 Conventional times and currents17 5.6.3 Gates 18 5.

22、7 Breaking range and breaking capacity.18 5.7.2 Rated breaking capacity 18 6 Markings 18 6.4 Marking of the gauge-pieces .18 7 Standard conditions for construction.19 7.1 Mechanical design.19 7.1.2 Connections including terminals 19 7.1.3 Fuse-contacts19 7.1.4 Construction of a gauge-piece .19 7.1.6

23、 Construction of a fuse-carrier 20 7.1.7 Construction of a fuse-link .20 7.1.8 Non-interchangeability.20 7.1.9 Construction of a fuse-base.21 7.2 Insulating properties and suitability for isolation 21 7.3 Temperature rise, power dissipation of the fuse-link and acceptable power dissipation of the fu

24、se-holder.22 7.7 I2t characteristics 22 7.7.1 Pre-arcing I2t values22 7.7.2 Operating I2t values.23 7.8 Overcurrent discrimination of “gG“ fuse-links.23 7.9 Protection against electric shock .23 8 Tests 23 8.1.4 Arrangement of the fuse and dimensions .24 8.2 Verification of the insulating properties

25、 and the suitability for isolation 25 60269-3 IEC:2010 3 8.2.1 Arrangement of the fuse-holder .25 8.2.6 Creepage distances, clearances and distances through sealing compound25 8.3 Verification of temperature rise and power dissipation.25 8.3.1 Arrangement of the fuse 25 8.3.3 Measurement of the powe

26、r dissipation of the fuse-link.26 8.3.5 Acceptability of test results26 8.5.1 Arrangement of the fuse 27 8.5.2 Characteristics of the test circuit27 8.5.5 Test method 27 8.5.8 Acceptability of test results27 8.7.4 Verification of overcurrent discrimination .27 8.9 Verification of resistance to heat

27、28 8.9.1 Fuse-base .28 8.9.2 Fuse-carrier.29 8.10 Verification of non-deterioration of contacts.30 8.10.1 Arrangement of the fuse 30 8.10.2 Test method 30 8.10.3 Acceptability of test results31 8.11 Mechanical and miscellaneous tests31 8.11.1 Mechanical strength 31 Annex AA (informative) Special te

28、st for cable overload protection(for fuse system A)66 Fuse system B Cylindrical fuses (NF cylindrical fuse system)67 1 General 67 1.1 Scope67 2 Terms and definitions .67 3 Conditions for operation in service67 4 Classification68 5 Characteristics of fuses 68 5.2 Rated voltage68 5.3.1 Rated current o

29、f the fuse-link.68 5.3.2 Rated current of the fuse-holder 68 5.5 Rated power dissipation of a fuse-link and rated acceptable power dissipation of a fuse-holder .68 5.6.2 Conventional times and currents68 5.6.3 Gates 69 5.7.2 Rated breaking capacity 69 6 Markings 69 7 Standard conditions for construc

30、tion.69 7.1 Mechanical design.69 7.1.2 Connections including terminals 69 7.1.6 Construction of a fuse-carrier 70 7.1.7 Construction of a fuse-link .70 7.1.8 Non-interchangeability.70 7.1.9 Construction of a fuse-base.70 7.2 Insulating properties and suitability for isolation 71 4 60269-3 IEC:2010 7

31、3 Temperature rise, power dissipation of the fuse-link and acceptable power dissipation of the fuse-holder.72 7.7 I2t characteristics 72 7.7.1 Pre-arcing I2t values72 7.7.2 Operating I2t values.72 7.8 Overcurrent discrimination of “gG“ fuse-links.72 7.9 Protection against electric shock .72 8 Tests

32、 73 8.1.6 Testing of fuse-holders 73 8.3.1 Arrangement of the fuse 73 8.3.3 Measurement of the power dissipation of the fuse-link.74 8.4 Verification of operation 75 8.4.1 Arrangement of the fuse 75 8.5 Verification of the breaking capacity75 8.5.1 Arrangement of the fuse 75 8.5.5 Test method 76 8.5

33、8 Acceptability of test results76 8.7.4 Verification of overcurrent discrimination .76 8.8 Verification of the degree of protection of enclosures 76 8.8.1 Verification of protection against electric shock .76 8.9 Verification of resistance to heat .76 8.10 Verification of non-deterioration of conta

34、cts.77 8.10.1 Arrangement of the fuse 77 8.10.2 Test method 77 8.10.3 Acceptability of test results77 8.12 Verification of the reliability of terminals 81 Fuse system C Cylindrical fuses (BS cylindrical fuse system) .90 1 General 90 1.1 Scope90 2 Terms and definitions .90 3 Conditions for operation

35、in service90 4 Classification90 5 Characteristics of fuses 91 5.2 Rated Voltage .91 5.3 Rated current 91 5.3.1 Rated current of the fuse-link.91 5.3.2 Rated current of the fuse-holder 91 5.5 Rated power dissipation of a fuse-link and rated acceptable power dissipation of a fuse-holder .91 5.6 Limits

36、 of time-current characteristics .91 5.6.1 Time-current characteristics, time-current curves and overload curves .91 5.6.2 Conventional times and currents91 5.7 Breaking range and breaking capacity.91 5.7.2 Rated breaking capacity 91 6 Markings 92 7 Standard conditions for construction.92 60269-3 IE

37、C:2010 5 7.1 Mechanical design.92 7.1.2 Connections including terminals 92 7.1.6 Construction of a fuse-carrier 92 7.1.7 Construction of a fuse-link .92 7.1.8 Non-interchangeability.92 7.1.9 Construction of a fuse-base.92 7.2 Insulating properties and suitability for isolation 92 7.3 Temperature ris

38、e, power dissipation of the fuse-link and acceptable power dissipation of the fuse-holder.93 7.7 I2t characteristics 93 7.9 Protection against electric shock .93 8 Tests 93 8.1 General .93 8.1.4 Arrangement of the fuse 93 8.3 Verification of temperature rise and power dissipation.93 8.3.1 Arrangemen

39、t of the fuse 93 8.3.3 Measurement of the power dissipation of the fuse-link.93 8.4 Verification of operation 93 8.4.1 Arrangement of fuse 93 8.5 Verification of breaking capacity93 8.5.1 Arrangement of the fuse 93 8.5.2 Characteristics of the test circuit93 8.5.5 Test method 94 8.5.8 Acceptability

40、of test results94 8.10 Verification of non-deterioration of contacts.94 8.10.1 Arrangement of the fuse 94 8.10.2 Test method 94 8.10.3 Acceptability of test results94 Fuse system D Cylindrical fuses (Italian cylindrical fuse system) 104 1 General 104 1.1 Scope104 2 Terms and definitions .104 3 Condi

41、tions for operation in service104 4 Classification104 5 Characteristics of fuses 104 5.3.1 Rated current of the fuse-link.104 5.3.2 Rated current of the fuse-holder 105 5.5 Rated power dissipation of a fuse-link and rated acceptable power dissipation of a fuse-holder .105 5.6 Limits of time-current

42、characteristics .106 5.6.1 Time-current characteristics, time-current zones and overload curves .106 5.6.2 Conventional times and currents106 5.6.3 Gates 106 5.7.2 Rated breaking capacity 106 6 Markings 107 7 Standard conditions for construction.107 7.1 Mechanical design.107 6 60269-3 IEC:2010 7.1.2

43、 Connections including terminals 107 7.1.6 Construction of a fuse-carrier 107 7.1.7 Construction of a fuse-link .107 7.1.8 Non-interchangeability.108 7.1.9 Construction of a fuse-base.108 7.2 Insulating properties and suitability for isolation 108 7.3 Temperature rise, power dissipation of the fuse-

44、link and acceptable power dissipation of the fuse-holder.109 7.7 I2t characteristics 109 7.7.1 Minimum pre-arcing I2t values at 0,01 s.109 7.7.2 Maximum operating I2t values at 0,01 s .110 7.9 Protection against electric shock .110 8 Tests 110 8.1.6 Testing of the fuse-holder110 8.3 Verification of

45、temperature rise and power dissipation.111 8.3.1 Arrangement of the fuse 111 8.3.3 Measurement of the power dissipation of the fuse-link.111 8.4 Verification of operation 112 8.4.1 Arrangement of the fuse 112 8.5 Verification of the breaking capacity112 8.5.1 Arrangement of the fuse 112 8.5.5 Test m

46、ethod 112 8.5.8 Acceptability of test results112 8.7.4 Verification of discrimination112 8.9 Verification of resistance to heat .112 8.9.1 Test in heating cabinet 112 8.9.2 Ball-pressure test 113 8.10 Verification of non-deterioration of contacts.113 8.10.1 Arrangement of the fuse 113 8.10.2 Test me

47、thod 113 8.10.3 Acceptability of test results114 8.11 Mechanical and miscellaneous tests114 Fuse system E Pin-type fuses .124 1 General 124 1.1 Scope124 2 Terms and definitions .124 2.3 Characteristic quantities124 3 Conditions for operation in service125 4 Classification125 5 Characteristics of fus

48、es 125 5.3.3 Rated current of the gauge-piece.125 5.5 Rated power dissipation of the fuse-link 125 5.6 Limits of time-current characteristics .125 5.6.2 Conventional times and currents125 5.6.3 Gates 125 5.7.2 Rated breaking capacity 126 6 Markings 126 60269-3 IEC:2010 7 6.1 Markings of fuse-holders

49、 .126 6.2 Markings of fuse-links126 6.4 Markings of the gauge-pieces126 7 Standard conditions for construction.126 7.1.4 Construction of the gauge-piece 126 7.1.6 Construction of a fuse-carrier 126 7.1.7 Construction of a fuse-link .127 7.1.8 Non-interchangeability.127 7.1.9 Construction of a fuse-base.127 7.3 Temperature rise, power dissipation of the fuse-link and acceptable power dissipation of the fuse-holder.1