1、BRITISH STANDARDBS EN60269-1:2007BS 88-1:2007Low-voltage fuses Part 1: General requirementsICS 29.120.50 +A1:2009BS EN +A2:2014 BS 88-1:2007 +A2:2014BS EN 60269-1:2007+A2:2014ISBN 978 0 580 81965 0Amendments/corrigenda issued since publicationDate Comments31 October 2009 Implementation of IEC amendm
2、ent 1:2009 with CENELEC endorsement A1:200931 October 2014 Implementation of IEC amendment 2:2014 with CENELEC endorsement A2:2014 Annex ZA amendedThis British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 June 2007 The British Standards Institution
3、2014. Published by BSI Standards Limited 2014National forewordThis British Standard is the UK implementation of EN 60269-1:2007+A2:2014. It is identical to IEC 60269-1:2006, incorporating amendments 1:2009 and 2:2014. It supersedes BS EN 60269-1:2007+A1:2009, which will be withdrawn on 4 August 2017
4、.The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to IEC text carry the number of the IEC amendment. For example, text altered by IEC amendment 1 is indicated by .The UK participation in its preparation was entrusted to Technic
5、al Committee PEL/32, Fuses.A list of organizations represented on this committee can be obtained on request to its secretary.This standard is part of a restructured series of British Standards for Low Voltage Fuses. These cover the related parts and examples of systems of fuses given in the associat
6、ed IEC 60269 series of standards.These British Standards together with their IEC counterparts are:BS 88-1 General requirements (IEC 60269-1)BS 88-2 Supplementary requirements for fuses for use by authorized persons (fuses mainly for industrial application) (IEC 60269-2, Fuse systems E, G and I)BS 88
7、-3 Supplementary requirements for fuses for use by unskilled persons (fuses mainly for household and similar applications) (IEC 60269-3, Fuse system C)BS 88-4 Supplementary requirements for fuse-links for the protection of semiconductor devices (IEC 60269-4)PD 88-5 Guidance for the application of lo
8、w-voltage fuses (IEC/TR 60269-5)The publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.EUROPEAN STANDARD EN 60269-1NORME EUROPENNE EUROP
9、ISCHE NORMJuly2009 CENELEC EuropeanCommitteeforElectrotechnicalStandardization Comit EuropendeNormalisation Electrotechnique EuropischesKomitee frElektrotechnischeNormung CentralSecretariat:ruedeStassart 35,B-1050 Brussels 2007 CENELEC- All rightsofexploitation in anyformand byanymeansreserved world
10、wide forCENELECmembers.Ref.No.EN60269-1:2007E ICS29.120.50 SupersedesEN60269-1:1998 + A1:2005, partiallysupersedesEN60269-2:1995 + A1:1998 +A2:2002 and EN60269-3:1995 + A1:2003English version Low-voltagefuses- Part 1:General requirements(IEC60269-1:2006)Fusiblesbasse tension - Partie 1:Exigencesgnra
11、les(CEI60269-1:2006) Niederspannungssicherungen - Teil 1:AllgemeineAnforderungen (IEC60269-1:2006) ThisEuropean Standard wasapproved byCENELECon 2007-03-01.CENELECmembersare bound to complywith the CEN/CENELEC Internal Regulations whichstipulate the conditions forgivingthisEuropean Standardthe statu
12、sofa nationalstandard withoutanyalteration.Up-to-date listsand bibliographicalreferences concerning such national standards maybe obtained on application to the CentralSecretariatorto anyCENELECmember.This European Standard exists in three official versions (English,French, German).A version in any
13、otherlanguage made bytranslation under the responsibilityofa CENELECmember into itsown language and notifiedto the CentralSecretariathasthe samestatusasthe officialversions.CENELEC members are the national electrotechnical committees of Austria,Belgium,Bulgaria, Cyprus,the Czech Republic,Denmark,Est
14、onia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,the Netherlands,Norway,Poland,Portugal,Romania,Slovakia,Slovenia,Spain,Sweden,Switzerland and the United Kingdom.:2007+A1EN 60269-1:2007+A2September 2014 2 Foreword The text of document32B/483/FDIS, f
15、uture edition 4 of IEC 60269-1,prepared bySC32B,Low-voltage fuses, of IEC TC32, Fuses, was submitted to the IEC-CENELEC parallel vote and wasapproved byCENELEC asEN60269-1 on 2007-03-01.This European Standard supersedesEN60269-1:1998 +A1:2005, it also partiallysupersedesEN60269-2:1995 +A1:1998 +A2:2
16、004 and EN60269-3:1995 +A1:2003.The following dateswere fixed: latestdate bywhich the ENhasto be implemented atnationallevelbypublication ofan identicalnationalstandard orbyendorsement (dop) 2008-03-01 latestdate bywhich the nationalstandardsconflicting with the ENhave to be withdrawn (dow) 2010-03-
17、01 AnnexZAhasbeen added byCENELEC._ Endorsement notice The text of the InternationalStandardIEC 60269-1:2006 was approved by CENELEC as a EuropeanStandard withoutanymodification._ Foreword to amendment A1The textofdocument 32B/534/FDIS, future amendment 1 to IEC 60269-1:2006, prepared by SC 32B, Low
18、-voltage fuses, of IECTC32, Fuses, was submitted to the IEC-CENELEC parallelvote and wasapproved byCENELEC asamendment A1 to EN 60269-1:2007 on 2009-07-01.The following dates were fixed: latestdate by which the amendment has to beimplemented at national level by publication ofan identical nationalst
19、andard or by endorsement (dop) 2010-04-01 latestdate by which the national standards conflictingwith the amendment have to be withdrawn (dow) 2012-07-01Annex ZA hasbeen added by CENELEC._Endorsement noticeThe textof amendment 1:2009 to the InternationalStandard IEC 60269-1:2006 wasapproved byCENELEC
20、 asan amendment to the European Standard without anymodification._BS EN 60269-1:2007+A1:2009 EN 60269-1:2007- 2 -BS EN 60269-1:2007+A2:2014EN 60269-1:2007+A2:2014 EN 60269-1:2007/A2:2014 - 2 - Foreword The text of document 32B/626/FDIS, future edition 4 of IEC 60269-1:2006/A2, prepared by SC 32B, “L
21、ow-voltage fuses“, of IEC/TC 32, “Fuses“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 60269-1:2007/A2:2014. 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
22、endorsement (dop) 2015-05-04 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2017-08-04 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 resp
23、onsible 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 (LVD - 2006/95/EC). Endorsement notice The text of the International Standard IEC 60269-1:2006/A2:2014 w
24、as approved by CENELEC as a European Standard without any modification. - 3 -BS EN 60269-1:2007+A2:2014EN 60269-1:2007+A2:2014EN 60269-1:2007/A2:2014 - 2 - Foreword The text of document 32B/626/FDIS, future edition 4 of IEC 60269-1:2006/A2, prepared by SC 32B, “Low-voltage fuses“, of IEC/TC 32, “Fus
25、es“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 60269-1:2007/A2:2014. 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) 2015-05-04 latest d
26、ate by which the national standards conflicting with the document have to be withdrawn (dow) 2017-08-04 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 su
27、ch patent rights. This standard covers the Principle 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 60269-1:2006/A2:2014 was approved by CENELEC as a European
28、Standard without any modification. Foreword to amendment A2BS EN 60269-1:2007+A2:2014IEC 60269-1:2007+A2:2014 - 4 -CONTENTSINTRODUCTION 71 General 81.1 Scope and object . 81.2 Normative references . 92 Terms and definitions . 102.1 Fuses and their component parts . 102.2 General terms 112.3 Characte
29、ristic quantities . 143 Conditions for operation in service 173.1 Ambient air temperature (Ta) 173.2 Altitude 173.3 Atmospheric conditions 173.4 Voltage 183.5 Current 183.6 Frequency, power factor and time constant . 183.7 Conditions of installation 183.8 Utilization category . 183.9 Discrimination
30、of fuse-links . 194 Classification 195 Characteristics of fuses 195.1 Summary of characteristics 195.2 Rated voltage . 205.3 Rated current . 205.4 Rated frequency (see 6.1 and 6.2) . 215.5 Rated power dissipation of a fuse-link and rated acceptable power dissipation of a fuse-holder 215.6 Limits of
31、time-current characteristics 215.7 Breaking range and breaking capacity 235.8 Cut-off current and I 2t characteristics . 246 Markings 246.1 Markings of fuse-holders 246.2 Markings of fuse-links 256.3 Marking symbols 257 Standard conditions for construction . 257.1 Mechanical design . 257.2 Insulatin
32、g properties and suitability for isolation 267.3 Temperature rise, power dissipation of the fuse-link and acceptable power dissipation of a fuse-holder 277.4 Operation . 287.5 Breaking capacity . 297.6 Cut-off current characteristic 297.7 I 2t characteristics . 297.8 Overcurrent selectivity of fuse-
33、links 307.9 Protection against electric shock 30BS EN 60269-1:2007+A2:2014IEC 60269-1:2007+A2:2014- 5 -7.10 Resistance to heat . 337.11 Mechanical strength . 337.12 Resistance to corrosion 337.13 Resistance to abnormal heat and fire . 337.14 Electromagnetic compatibility . 338 Tests 348.1 General 34
34、8.2 Verification of the insulating properties and of the suitability for isolation 398.3 Verification of temperature rise and power dissipation 418.4 Verification of operation 448.5 Verification of the breaking capacity . 498.6 Verification of the cut-off current characteristics 558.7 Verification o
35、f I 2t characteristics and overcurrent selectivity 558.8 Verification of the degree of protection of enclosures 568.9 Verification of resistance to heat . 568.10 Verification of non-deterioration of contacts 568.11 Mechanical and miscellaneous tests . 57Annex A (informative) Measurement of short-cir
36、cuit power factor . 70Annex B (informative) Calculation of pre-arcing I 2t values for gG, gM, gD and gN fuse-links and calculation of operating I 2t values at reduced voltage . 73Annex C (informative) Calculation of cut-off current-time characteristic . 75Annex D (informative) Effect of change of am
37、bient temperature and surroundings on the performance of fuse-links 78Annex E (normative) Particular requirements for fuse-bases with screwless-type terminals for external copper conductors 79Annex ZA (normative) Normative references to international publications with their corresponding European pu
38、blications . 87Bibliography . 86Figure 1 Diagram illustrating the means of verification of the time-current characteristic, using the results of the tests at the gate currents (example) . 61Figure 2 Overload curve and time-current characteristic for a fuse-links . 62Figure 3 Time-current zone for aM
39、 fuses 63Figure 4 General presentation of the cut-off characteristics for a series of a.c. fuselinks . 64Figure 5 Typical diagram of the circuit used for breaking capacity test (see 8.5) . 65Figure 6 Interpretation of oscillograms taken during the a.c. breaking-capacity tests (see 8.5.7) 66Figure 7
40、Interpretation of oscillograms taken during the d.c. breaking-capacity tests (see 8.5.7) 67Figure 8 Glow-wire and position of the thermocouple . 68Figure 9 Test apparatus (example) 69Figure A.1 Determination of circuit-impedance for calculation of power factor in accordance with method I . 72Figure
41、E.1 Connecting samples . 84Figure E.2 Examples of terminals . 85BS EN 60269-1:2007+A2:2014IEC 60269-1:2007+A2:2014 - 6 -Table 1 Standard values of a.c. rated voltages for fuses . 20Table 2 Conventional time and current for gG and gM fuse-links 22Table 3 Gates for specified pre-arcing times of gG and
42、 gM fuse-links 22Table 4 Gates for aM fuse-links (all rated currents) . 23Table 5 Temperature rise limits T = (T Ta) for contacts and terminals . 27Table 6 Maximum arc voltage . 29Table 7 Pre-arcing I 2t values at 0,01 s for gG and gM fuse-links 30Table 8 Rated impulse withstand voltage 31Table 9 Mi
43、nimum clearances in air . 31Table 10 Minimum creepage distances . 32Table 11 Survey of complete tests on fuse-links and number of fuse-links to be tested . 36Table 12 Survey of tests on fuse-links of smallest rated current of homogeneous series and number of fuse-links to be tested . 37Table 13 Surv
44、ey of tests on fuse-links of rated currents between the largest and the smallest rated current of a homogeneous series and number of fuse-links to be tested . 38Table 14 Survey of complete tests on fuse-holders and number of fuse-holders to be tested . 38Table 15 Test voltage . 40Table 16 Test volta
45、ge across the poles for the verification of the suitability for isolation 41Table 17 Cross-sectional area of copper conductors for tests corresponding to Subclauses 8.3 and 8.4 43Table 18 Cross-section areas of the copper conductors for the test of aM fuses . 46Table 19 Table for test in Subclause 8
46、.4.3.5 . 48Table 20 Values for breaking-capacity tests on a.c. fuses . 51Table 21 Values for breaking capacity tests on d.c. fuses . 52Table 22 Preferred values of d.c. rated voltages for fuses . 20Table E.1 Connectable conductors . 81Table E.2 Cross-sections of copper conductors connectable to term
47、inals 81Table E.3 Pull forces 83 6 INTRODUCTION A reorganization of the different parts of the IEC60269 series has been carried out, in orderto simplify its use, especially by the laboratories which testthe fuses.IEC 60269-1, IEC 60269-2, IEC 60269-3 and IEC 60269-3-1 have been integrated into eithe
48、r the new part 1 or the new parts 2 or 3, according to the subjects considered, so that the clauses which deal exclusively with “fuses for authorized persons” are separated from the clauses dealing with “fuses for unauthorized persons”. As far as IEC 60269-4 and IEC 60269-4-1 are concerned, they have been integrated into thenew part 4 which deals with the fuse-links used for semiconductor protection. BS EN 60269-1:2007+A1:2009 EN 60269-1:2007BS EN 60269-1:2007+A2:2014IEC 60269-1:2007+A2:2014- 7 - 7 LOW-VOLTAGE FUSES Part 1: General requirements 1 General 1.1 S
