IEC 60127-6-2014 Miniature fuses - Part 6 Fuse-holders for miniature fuse-links《小型熔断器 第6部分 小型管状熔断体的熔断器座》.pdf

1、 IEC 60127-6 Edition 2.0 2014-09 INTERNATIONAL STANDARD NORME INTERNATIONALE Miniature fuses Part 6: Fuse-holders for miniature fuse-links Coupe-circuits miniatures Partie 6: Ensembles-porteurs pour cartouches de coupe-circuits miniatures IEC 60127-6:2014-09(en-fr) THIS PUBLICATION IS COPYRIGHT PROT

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19、entaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 60127-6 Edition 2.0 2014-09 INTERNATIONAL STANDARD NORME INTERNATIONALE Miniature fuses Part 6: Fuse-holders for miniature fuse-links Coupe-circuits miniatures Partie 6: Ensembles-porteurs pour cartouches de

20、coupe-circuits miniatures INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE XA ICS 29.120.50 PRICE CODE CODE PRIX ISBN 978-2-8322-1830-3 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internation

21、ale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 IEC 60127-6:2014 IEC 2014 CONTENTS FOREWORD . 6 INTRODUCTION . 8 1 Scope 9 2 Normative references 10 3 Terms an

22、d definitions 11 3.1 Fuse-holders . 12 4 General requirements 15 5 Preferred standard ratings and classifications for fuse-holders 15 6 Marking . 16 7 Clause deleted 16 8 General notes on tests 16 8.1 Nature of tests 16 8.2 Standard atmospheric conditions for measurement and tests 17 8.3 Preconditio

23、ning of test samples 17 8.4 Nature of supply . 17 8.5 Gauges and dummy fuse-links for tests . 17 8.5.1 Gauges and dummy fuse-links according to IEC 60127-2 17 8.5.2 Gauges and dummy fuse-links according to IEC 60127-3 18 8.6 Type tests . 20 9 Protection against electric shock . 20 9.1 Category PC1:

24、Fuse-holders without integral protection against electric shock 20 9.2 Category PC2: Fuse-holders with integral protection against electric shock 21 9.3 Category PC3: Fuse-holders with enhanced integral protection against electric shock 21 10 Clearances and creepage distances 21 10.1 General . 21 10

25、2 Minimum requirements for fuse-holders in respect to the grade of insulation . 21 10.3 Clearances . 22 10.4 Creepage distances 23 11 Electrical requirements 24 11.1 Insulation resistance, dielectric strength and impulse withstand voltage 24 11.1.1 Mounting . 24 11.1.2 Humidity preconditioning . 25

26、 11.1.3 Measurement of insulation resistance 25 11.1.4 Dielectric strength test . 26 11.1.5 Impulse withstand voltage test . 26 11.2 Contact resistance 26 11.2.1 General measuring requirements . 26 11.2.2 Measuring cycle. 27 11.2.3 Measurement and requirements . 27 12 Mechanical requirements . 29 12

27、1 General . 29 12.2 Mounting . 29 12.3 Compatibility between fuse-holder and fuse-link . 29 IEC 60127-6:2014 IEC 2014 3 12.4 Mechanical strength of the connection between fuse-base and fuse-carrier 30 12.4.1 Screw and bayonet connections 30 12.4.2 Plug-in connection . 30 12.5 Impact test 31 12.6 Me

28、chanical strength of the fuse-holder fastening on panels 31 12.6.1 Fixing nut fastening . 31 12.6.2 Fixing screw fastening . 31 12.6.3 Snap-in fastening 32 12.7 Terminals of fuse-bases 33 12.7.1 Terminals with screw-type clamping or screwless-type clamping . 33 12.7.2 Terminals for soldering 33 12.7

29、3 Quick-connect male tab terminals 35 12.7.4 Quick-connect male tab terminals combined with solder tag terminals . 36 12.8 Resistance to vibration . 36 12.8.1 General . 36 12.8.2 Mounting . 36 12.8.3 Measurement and requirements . 37 13 Thermal requirements 37 13.1 Rated power acceptance test 37 13

30、1.1 General . 37 13.1.2 Mounting . 37 13.1.3 Dummy fuse-links 38 13.1.4 Measurement of maximum allowable temperatures on fuse-holders . 40 13.1.5 Correlation between ambient air temperature TA1 and the power acceptance of a fuse-holder . 42 13.1.6 Temperature measuring point for ambient air tempera

31、ture T A143 13.1.7 Test method 43 13.2 Resistance to abnormal heat and fire 44 13.2.1 Needle-flame test 44 13.2.2 Glow-wire ignition test . 45 14 Endurance . 45 14.1 General . 45 14.2 Endurance test 45 14.3 Requirements . 45 15 Additional requirements . 45 15.1 Resistance to rusting 45 15.2 Resistan

32、ce to cleaning solvents 46 Annex A (normative) Test PC board for fuse-holders of rated currents up to 10 A . 47 Annex B (normative) Type tests, test sequences and number of samples 48 Annex C (informative) Insulation coordination 49 C.1 Overvoltage categories . 49 C.2 Degrees of pollution in the mic

33、ro-environment 49 C.3 Comparative tracking index CTI 50 Annex D (informative) Additional tests and requirements . 51 D.1 General . 51 D.2 Resistance to shock 51 D.2.1 General . 51 D.2.2 Mounting . 51 4 IEC 60127-6:2014 IEC 2014 D.2.3 Measurement and requirements . 51 D.3 Verification of the degree o

34、f protection of enclosures 51 D.4 Climatic category 52 D.4.1 General . 52 D.4.2 Test conditions and requirements 52 Annex E (informative) Information for the correct application of the fuse-holder . 53 Bibliography 54 Figure 1 Outline of gauges and dummy fuse-links according to IEC 60127-2 17 Figure

35、 2 Outline of gauges and dummy fuse-links according to IEC 60127-3 standard sheet 1 . 19 Figure 3 Outline of gauges and dummy fuse-links according to IEC 60127-3 standard sheets 3 and 4 . 19 Figure 4 Panel mounting 25 Figure 5 PC board mounting 25 Figure 6 Test device for mechanical test 29 Figure 7

36、 Fuse-holder fastening on panels 32 Figure 8 Tensile force test . 36 Figure 9 Compressive force test 36 Figure 10 Test device 38 Figure 11 Illustration of temperatures experienced in practice 41 Figure 12 Example of a derating curve . 44 Figure A.1 Example of a test board 47 Table 1 Features of unex

37、posed or exposed fuse-holders . 9 Table 2 Values for standard ratings and classifications 16 Table 3 Dimensions and materials for gauges according to IEC 60127-2 . 18 Table 4 Dimensions and materials for dummy fuse-links according to IEC 60127-2 . 18 Table 5 Dimensions and materials for gauges accor

38、ding to IEC 60127-3 20 Table 6 Dimensions and materials for dummy fuse-links according to IEC 60127-3 . 20 Table 7 Types of insulation between different live parts and accessible parts 21 Table 8 Required impulse withstand voltage for clearances . 22 Table 9 Overvoltage category II . 23 Table 10 Ove

39、rvoltage category III 23 Table 11 Minimum creepage distances in millimetres for a micro- environmentdependent on rated voltage, pollution degree, insulating material,corresponding to IEC 60664-1:2007, Table F.4 24 Table 12 Values for insulation resistance, dielectric strength and impulse withstand v

40、oltage 28 Table 13 Values for torque and axial pull . 30 Table 14 Torque values . 31 Table 15 Torque values . 32 Table 16 Mounting groups 33 Table 17 Cross-sections of conductors 34 Table 18 Tensile and compressive forces 36 IEC 60127-6:2014 IEC 2014 5 Table 19 Dummy fuse-links according to IEC 6012

41、7-2 . 39 Table 20 Dummy fuse-links according to IEC 60127-3 . 40 Table 21 Maximum allowable temperatures 42 Table A.1 Copper layer for test board 47 Table B.1 Type tests, test sequences and number of samples . 48 Table D.1 Examples of climatic categories . 52 Table E.1 Information for the correct ap

42、plication of the fuse-holder 53 6 IEC 60127-6:2014 IEC 2014 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ MINIATURE FUSES Part 6: Fuse-holders for miniature fuse-links FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all nationa

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