BS EN 60127-6:2014
$198.66
Miniature fuses – Fuse-holders for miniature fuse-links
| Published By | Publication Date | Number of Pages |
| BSI | 2014 | 60 |
This part of IEC 60127 is applicable to fuse-holders for miniature cartridge fuse-links according to IEC 60127‑2 and sub-miniature fuse-links according to IEC 60127‑3 for the protection of electric appliances, electronic equipment and component parts thereof, normally intended for use indoors.
Examples of fuse-holder types with different features are given in Table 1.
Table 1
Features of unexposed or exposed fuse-holders
NOTE
This list is not intended to be comprehensive and fuse-holders which are not listed are not necessarily excluded from the scope.
This part of IEC 60127 applies to fuse-holders with:
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a maximum rated current of 16 A; and
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a maximum rated voltage of 1 500 V d.c. or 1 000 V a.c.; and
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for use up to 2 000 m above sea-level, unless otherwise specified.
The object of this standard is to establish uniform requirements for safety and the assessment of electrical, mechanical, thermal and climatic properties of fuse-holders and the compatibility between fuse-holders and fuse-links.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 8 | English CONTENTS |
| 12 | INTRODUCTION |
| 13 | 1 Scope Tables Table 1 – Features of unexposed or exposed fuse-holders |
| 14 | 2 Normative references |
| 15 | 3 Terms and definitions |
| 16 | 3.1 Fuse-holders |
| 19 | 4 General requirements 5 Preferred standard ratings and classifications for fuse-holders |
| 20 | 6 Marking 7 Clause deleted 8 General notes on tests 8.1 Nature of tests Table 2 – Values for standard ratings and classifications |
| 21 | 8.2 Standard atmospheric conditions for measurement and tests 8.3 Preconditioning of test samples 8.4 Nature of supply 8.5 Gauges and dummy fuse-links for tests 8.5.1 Gauges and dummy fuse-links according to IEC 60127-2 Figures Figure 1 – Outline of gauges and dummy fuse-links according to IEC 60127-2 |
| 22 | 8.5.2 Gauges and dummy fuse-links according to IEC 60127-3 Table 3 – Dimensions and materials for gauges according to IEC 60127-2 Table 4 – Dimensions and materials for dummy fuse-links according to IEC 60127-2 |
| 23 | Figure 2 – Outline of gauges and dummy fuse-links according to IEC 60127-3 standard sheet 1 Figure 3 – Outline of gauges and dummy fuse-links according to IEC 60127-3 standard sheets 3 and 4 |
| 24 | 8.6 Type tests 9 Protection against electric shock 9.1 Category PC1: Fuse-holders without integral protection against electric shock Table 5 – Dimensions and materials for gauges according to IEC 60127-3 Table 6 – Dimensions and materials for dummy fuse-links according to IEC 60127-3 |
| 25 | 9.2 Category PC2: Fuse-holders with integral protection against electric shock 9.3 Category PC3: Fuse-holders with enhanced integral protection against electric shock 10 Clearances and creepage distances 10.1 General 10.2 Minimum requirements for fuse-holders in respect to the grade of insulation Table 7 – Types of insulation between different live parts and accessible parts |
| 26 | 10.3 Clearances Table 8 – Required impulse withstand voltage for clearances |
| 27 | 10.4 Creepage distances Table 9 – Overvoltage category II Table 10 – Overvoltage category III |
| 28 | 11 Electrical requirements 11.1 Insulation resistance, dielectric strength and impulse withstand voltage 11.1.1 Mounting 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 |
| 29 | 11.1.2 Humidity preconditioning 11.1.3 Measurement of insulation resistance Figure 4 – Panel mounting Figure 5 – PC board mounting |
| 30 | 11.1.4 Dielectric strength test 11.1.5 Impulse withstand voltage test 11.2 Contact resistance 11.2.1 General measuring requirements |
| 31 | 11.2.2 Measuring cycle 11.2.3 Measurement and requirements |
| 32 | Table 12 – Values for insulation resistance, dielectric strength and impulse withstand voltage |
| 33 | 12 Mechanical requirements 12.1 General 12.2 Mounting 12.3 Compatibility between fuse-holder and fuse-link Figure 6 – Test device for mechanical test |
| 34 | 12.4 Mechanical strength of the connection between fuse-base and fuse-carrier 12.4.1 Screw and bayonet connections 12.4.2 Plug-in connection Table 13 – Values for torque and axial pull |
| 35 | 12.5 Impact test 12.6 Mechanical strength of the fuse-holder fastening on panels 12.6.1 Fixing nut fastening 12.6.2 Fixing screw fastening Table 14 – Torque values |
| 36 | 12.6.3 Snap-in fastening Figure 7 – Fuse-holder fastening on panels Table 15 – Torque values |
| 37 | 12.7 Terminals of fuse-bases 12.7.1 Terminals with screw-type clamping or screwless-type clamping 12.7.2 Terminals for soldering Table 16 – Mounting groups |
| 38 | Table 17 – Cross-sections of conductors |
| 39 | 12.7.3 Quick-connect male tab terminals |
| 40 | 12.7.4 Quick-connect male tab terminals combined with solder tag terminals 12.8 Resistance to vibration 12.8.1 General 12.8.2 Mounting Figure 8 – Tensile force test Figure 9 – Compressive force test Table 18 – Tensile and compressive forces |
| 41 | 12.8.3 Measurement and requirements 13 Thermal requirements 13.1 Rated power acceptance test 13.1.1 General 13.1.2 Mounting |
| 42 | 13.1.3 Dummy fuse-links Figure 10 – Test device |
| 43 | Table 19 – Dummy fuse-links according to IEC 60127-2 |
| 44 | 13.1.4 Measurement of maximum allowable temperatures on fuse-holders Table 20 – Dummy fuse-links according to IEC 60127-3 |
| 45 | Figure 11 – Illustration of temperatures experienced in practice |
| 46 | 13.1.5 Correlation between ambient air temperature TA1 and the power acceptance of a fuse-holder Table 21 – Maximum allowable temperatures |
| 47 | 13.1.6 Temperature measuring point for ambient air temperature TA1 13.1.7 Test method |
| 48 | 13.2 Resistance to abnormal heat and fire 13.2.1 Needle-flame test Figure 12 – Example of a derating curve |
| 49 | 13.2.2 Glow-wire ignition test 14 Endurance 14.1 General 14.2 Endurance test 14.3 Requirements 15 Additional requirements 15.1 Resistance to rusting |
| 50 | 15.2 Resistance to cleaning solvents |
| 51 | Annex A (normative) Test PC board for fuse-holders of rated currents up to 10 A Figure A.1 – Example of a test board Table A.1 – Copper layer for test board |
| 52 | Annex B (normative) Type tests, test sequences and number of samples Table B.1 – Type tests, test sequences and number of samples |
| 53 | Annex C (informative) Insulation coordination C.1 Overvoltage categories C.2 Degrees of pollution in the micro-environment |
| 54 | C.3 Comparative tracking index CTI |
| 55 | Annex D (informative) Additional tests and requirements D.1 General D.2 Resistance to shock D.2.1 General D.2.2 Mounting D.2.3 Measurement and requirements D.3 Verification of the degree of protection of enclosures |
| 56 | D.4 Climatic category D.4.1 General D.4.2 Test conditions and requirements Table D.1 – Examples of climatic categories |
| 57 | Annex E (informative) Information for the correct application of the fuse-holder Table E.1 – Information for the correct application of the fuse-holder |
| 58 | Bibliography |
