BS EN 60127-7-2013 Miniature fuses Miniature fuse-links for special applications《小型熔断器 特殊应用的小型熔断器》.pdf

1、BSI Standards PublicationMiniature fusesPart 7: Miniature fuse-links for special applicationsBS EN 60127-7:2013BS EN 60127-7:2013 Incorporating corrigendum August 2013National forewordThis British Standard is the UK implementation of EN 60127-7:2013. It isidentical to IEC 60127-7:2013.The UK partici

2、pation in its preparation was entrusted to TechnicalCommittee PEL/32, Fuses.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct a

3、pplication. The British Standards Institution 2013Published by BSI Standards Limited 2013ISBN 978 0 580 70398 0ICS 29.120.50Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Com

4、mittee on 31 August 2013.Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 60127-7:2013Amendments/corrigenda issued since publicationDate Text affected31 August 2013 Implementation of CENELEC correction notice 21 June 2013: EN foreword has been updatedEUROPEAN STAND

5、ARD EN 60127-7 NORME EUROPENNE EUROPISCHE NORM June 2013 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2013 CENELEC - All rights o

6、f exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60127-7:2013 E ICS 29.120.50 English version Miniature fuses - Part 7: Miniature fuse-links for special applications (IEC 60127-7:2013) Coupe-circuit miniatures - Partie 7: Elments de remplacement miniatu

7、res pour applications spciales (CEI 60127-7:2013) Gerteschutzsicherungen - Teil 7: G-Sicherungseinstze fr besondere Anwendungen (IEC 60127-7:2013) This European Standard was approved by CENELEC on 2013-04-24. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipula

8、te the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European

9、 Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC member

10、s are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norwa

11、y, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 60127-7:2013EN 60127-7:2013 - 2 - Foreword The text of document 32C/458/CDV, future edition 1 of IEC 60127-7, prepared by SC 32C “Miniature fuses” of IEC/TC 32 “Fuses” was submitted to

12、the IEC-CENELEC parallel vote and approved by CENELEC as EN 60127-7:2013. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2013-01-24 latest date by which the national sta

13、ndards conflicting with the document have to be withdrawn (dow) 2013-04-24 This standard shall be used in conjunction with EN 60127-1:2006 + A1:2011. The clauses of this standard supplement, modify or replace the corresponding clauses in EN 60127-1. Where there is no corresponding clause or subclaus

14、e in this standard, the clause or subclause of EN 60127-1 applies without modification as far as is reasonable. When this standard states “addition”or “replacement”, the relevant text in EN 60127-1 is to be adapted accordingly. Subclauses which are additional to those in Part 1 are numbered starting

15、 from 101. Additional annexes are numbered AA, BB, etc. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. This standard covers the Princ

16、iple Elements of the Safety Objectives for Electrical Equipment Designed for Use within Certain Voltage Limits (LVD - 2006/95/EC). Endorsement notice The text of the International Standard IEC 60127-7:2013 was approved by CENELEC as a European Standard without any modification. BS EN 60127-7:2013201

17、4-01-242016-04-24EN 60127-7:2013 - 2 - Foreword The text of document 32C/458/CDV, future edition 1 of IEC 60127-7, prepared by SC 32C “Miniature fuses” of IEC/TC 32 “Fuses” was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 60127-7:2013. The following dates are fixed: lates

18、t date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2013-01-24 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2013-04-24 This standard shall be used in conj

19、unction with EN 60127-1:2006 + A1:2011. The clauses of this standard supplement, modify or replace the corresponding clauses in EN 60127-1. Where there is no corresponding clause or subclause in this standard, the clause or subclause of EN 60127-1 applies without modification as far as is reasonable

20、. When this standard states “addition”or “replacement”, the relevant text in EN 60127-1 is to be adapted accordingly. Subclauses which are additional to those in Part 1 are numbered starting from 101. Additional annexes are numbered AA, BB, etc. Attention is drawn to the possibility that some of the

21、 elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. This standard covers the Principle Elements of the Safety Objectives for Electrical Equipment Designed for Use within Certain Voltage Limits

22、 (LVD - 2006/95/EC). Endorsement notice The text of the International Standard IEC 60127-7:2013 was approved by CENELEC as a European Standard without any modification. BS EN 60127-7:2013- 3 - EN 60127-7:2013 Annex ZA (normative) Normative references to international publications with their correspo

23、nding European publications The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any

24、amendments) applies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60068-2-21 + corr. January 2006 2012 Environmental testing - Part 2-21: Tests - Test U: Robustness of terminati

25、ons and integral mounting devices EN 60068-2-21 2006 IEC 60127-1 2006 Miniature fuses - Part 1: Definitions for miniature fuses and general requirements for miniature fuse-links EN 60127-1 2006 IEC 60127-6 + A1 + A2 1994 1996 2002 Miniature fuses - Part 6: Fuse-holders for miniature cartridge fuse-l

26、inks EN 60127-6 + A1 + A2 1994 1996 2003 IEC 60664-1 2007 Insulation coordination for equipment within low-voltage systems - Part 1: Principles, requirements and tests EN 60664-1 2007 IEC 60695-2-12 2010 Fire hazard testing - Part 2-12: Glowing/hot-wire based test methods - Glow-wire flammability in

27、dex (GWFI) test method for materials EN 60695-2-12 2010 IEC 60695-2-13 + corr. February 2010 2012 Fire hazard testing - Part 2-13: Glowing/hot-wire based test methods - Glow-wire ignition temperature (GWIT) test method for materials EN 60695-2-13 2010 IEC 60695-4 2012 Fire hazard testing - Part 4: T

28、erminology concerning fire tests for electrotechnical products EN 60695-4 2012 IEC 61249-2-7 2002 Materials for printed boards and other interconnecting structures - Part 2-7: Reinforced base materials, clad and unclad - Epoxide woven E-glass laminated sheet of defined flammability (vertical burning

29、 test), copper-clad EN 61249-2-7 + corr. September 2002 2005 ISO 3 1973 Preferred numbers - Series of preferred numbers - - BS EN 60127-7:2013 2 60127-7 IEC:2013 CONTENTS INTRODUCTION . 5 1 Scope . 6 2 Normative references . 6 3 Terms and definitions . 7 4 General requirements . 7 5 Standard ratings

30、 . 8 6 Marking 8 7 General notes on tests . 9 8 Dimensions and construction 12 9 Electrical requirements . 13 9.1 Voltage drop 13 9.2 Time/current characteristic 13 9.2.1 Time/current characteristic at normal ambient temperature 13 9.2.2 Test at elevated temperature . 13 9.3 Breaking capacity 13 9.3

31、.1 Operating conditions 13 9.3.2 Criteria for satisfactory performance 15 9.4 Endurance tests 15 9.4.101 Endurance test at normal ambient temperature . 16 9.4.102 Test method A . 16 9.4.103 Test method B . 16 9.5 Maximum sustained dissipation . 16 9.6 Pulse tests 16 9.7 Fuse-link temperature . 16 9.

32、7.101 Fuse-links for use on printed circuit boards . 16 9.7.102 Fuse-links for use in fuse-holders 17 Annex AA (informative) Guidance on ratings to be specified by the manufacturer or to be agreed upon with the testing house 23 Figure 1 Standard test board . 10 Figure 2 Standard test base for printe

33、d circuit board 11 Figure 3 Test circuits for breaking capacity tests 14 Table 1 Power factor and time constant . 15 Table 2 Testing schedule for a.c. or d.c. breaking capacity fuse-links 18 Table 3 Testing schedule for a.c. and d.c. breaking capacity fuse-links 19 BS EN 60127-7:2013 2 60127-7 IEC:2

34、013 CONTENTS INTRODUCTION . 5 1 Scope . 6 2 Normative references . 6 3 Terms and definitions . 7 4 General requirements . 7 5 Standard ratings . 8 6 Marking 8 7 General notes on tests . 9 8 Dimensions and construction 12 9 Electrical requirements . 13 9.1 Voltage drop 13 9.2 Time/current characteris

35、tic 13 9.2.1 Time/current characteristic at normal ambient temperature 13 9.2.2 Test at elevated temperature . 13 9.3 Breaking capacity 13 9.3.1 Operating conditions 13 9.3.2 Criteria for satisfactory performance 15 9.4 Endurance tests 15 9.4.101 Endurance test at normal ambient temperature . 16 9.4

36、.102 Test method A . 16 9.4.103 Test method B . 16 9.5 Maximum sustained dissipation . 16 9.6 Pulse tests 16 9.7 Fuse-link temperature . 16 9.7.101 Fuse-links for use on printed circuit boards . 16 9.7.102 Fuse-links for use in fuse-holders 17 Annex AA (informative) Guidance on ratings to be specifi

37、ed by the manufacturer or to be agreed upon with the testing house 23 Figure 1 Standard test board . 10 Figure 2 Standard test base for printed circuit board 11 Figure 3 Test circuits for breaking capacity tests 14 Table 1 Power factor and time constant . 15 Table 2 Testing schedule for a.c. or d.c.

38、 breaking capacity fuse-links 18 Table 3 Testing schedule for a.c. and d.c. breaking capacity fuse-links 19 BS EN 60127-7:201360127-7 IEC:2013 5 INTRODUCTION According to the wish expressed by the users of miniature fuses, all standards, recommendations and other documents relating to miniature fuse

39、s should have the same publication number in order to facilitate reference to fuses in other specifications, for example, equipment specifications. Furthermore, a single publication number and subdivision into parts would facilitate the establishment of new standards, because clauses containing gene

40、ral requirements need not be repeated. The IEC 60127 series, under the general heading Miniature fuses, is thus subdivided as follows: IEC 60127-1, Miniature fuses Part 1: Definitions for miniature fuses and general requirements for miniature fuse-links IEC 60127-2, Miniature fuses Part 2: Cartridge

41、 fuse-links IEC 60127-3, Miniature fuses Part 3: Sub-miniature fuse-links IEC 60127-4, Miniature fuses Part 4: Universal modular fuse-links (UMF) Through-hole and surface mount types IEC 60127-5, Miniature fuses Part 5: Guidelines for quality assessment of miniature fuse-links IEC 60127-6, Miniature

42、 fuses Part 6: Fuse-holders for miniature fuse-links IEC 60127-7, Miniature fuses Part 7: Miniature fuse-links for special applications IEC 60127-8, (Free for further documents) IEC 60127-9, (Free for further documents) IEC 60127-10, Miniature fuses Part 10: User guide for miniature fuses BS EN 6012

43、7-7:2013 6 60127-7 IEC:2013 MINIATURE FUSES Part 7: Miniature fuse-links for special applications 1 Scope This part of IEC 60127 covers requirements for miniature fuse-links for special applications. It does not apply to fuses completely covered by the subsequent parts of IEC 60269-1. It does not ap

44、ply to miniature fuse-links for appliances intended to be used under special conditions, such as in corrosive or explosive atmospheres. This standard applies in addition to the requirements of IEC 60127-1. This standard is applicable to fuse-links with a rated voltage not exceeding 1000 V, a rated c

45、urrent not exceeding 20 A and a rated breaking capacity not exceeding 50 kA. Miniature fuse-links for special applications are not intended to be replaced by the end-user of an electrical / electronic appliance. The object of this standard is to establish uniform test methods for miniature fuse-link

46、s for special applications, so as to allow verification of the values (for example melting time and breaking capacity values) specified by the manufacturer. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its

47、application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60068-2-21:2006, Environmental testing Part 2-21: Tests Test U: Robustness of terminations and integral mounting devices IE

48、C 60127-1:2006, Miniature fuses Part 1: Definitions for miniature fuses and general requirements for miniature fuse-links IEC 60127-6:1994, Miniature fuses Part 6: Fuse-holders for miniature cartridge fuse-links Amendment 1:1996 Amendment 2:2002 IEC 60664-1:2007, Insulation coordination for equipmen

49、t within low-voltage systems Part 1: Principles, requirements and tests IEC 60695-2-12:2010, Fire hazard testing Part 2-12: Glowing/hot-wire based test methods Glow-wire flammability index (GWFI) test method for materials IEC 60695-2-13:2010, Fire hazard testing Part 2-13: Glowing/hot-wire based test methods Glow-wire ignition temperature (GWIT) test method for materials IEC 60695-4:2012, Fire hazard testing Part 4: Terminology concerning fire tests for electrotechn