BS EN 60127-7:2016
$167.15
Miniature fuses – Miniature fuse-links for special applications
| Published By | Publication Date | Number of Pages |
| BSI | 2016 | 36 |
IEC 60127-7:2015 covers requirements for miniature fuse-links for special applications. This part of IEC 60127 is applicable to fuse-links with a rated voltage not exceeding 1 000 V, a rated current not exceeding 20 A and a rated breaking capacity not exceeding 50 kA. It does not apply to fuses completely covered by the subsequent parts of IEC 60269-1. It does not apply to miniature fuse-links for appliances intended to be used under special conditions, such as in corrosive or explosive atmospheres. This part of IEC 60127 applies in addition to the requirements of IEC 60127-1. 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 part of IEC 60127 is to establish uniform test methods for miniature fuse-links for special applications, so as to allow verification of the values (for example melting time and breaking capacity values) specified by the manufacturer. This second edition cancels and replaces the first edition published in 2013. This edition includes the following significant technical changes with respect to the previous edition: – defining a test board for surface mount fuse-links, Figure 2; – defining test schedules for homogenous series. This publication is to be read in conjunction with /2. Keywords: fuse-links with a rated voltage not exceeding 1 000 V, a rated current not exceeding 20 A and a rated breaking capacity not exceeding 50 kA.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | CONTENTS |
| 7 | FOREWORD |
| 9 | INTRODUCTION |
| 10 | 1 Scope 2 Normative references |
| 11 | 3 Terms and definitions |
| 12 | 4 General requirements 5 Standard ratings 6 Marking |
| 13 | 7 General notes on tests |
| 15 | Figures Figure 1 – Standard test board for fuse-links with wire terminations |
| 16 | Figure 2 – Test board for surface mount fuse-links |
| 17 | Figure 3 – Test fuse base |
| 18 | 8 Dimensions and construction |
| 19 | 9 Electrical requirements |
| 20 | Figure 4 – Test circuits for breaking capacity tests |
| 21 | Tables Table 1 – Power factor and time constant |
| 24 | Table 2 – Testing schedule for individual ampere ratings for a.c. or d.c. breaking capacity fuse-links |
| 25 | Table 3 – Testing schedule for individual ampere ratings for a.c. and d.c. breaking capacity fuse-links |
| 26 | Table 4 – Testing schedule for maximum ampere rating of a homogeneous series (a.c. or d.c. breaking capacity fuse-links) |
| 27 | Table 5 – Testing schedule for maximum ampere rating of a homogeneous series (a.c. and d.c. breaking capacity fuse-links) |
| 28 | Table 6 – Testing schedule for minimum ampere rating of a homogeneous series Table 7 – Testing schedule for all intermediate ampere ratings of a homogeneous series |
| 29 | 10 Standard sheets |
| 32 | Annex A (informative) Guidance on ratings to be specified by the manufactureror to be agreed upon with the testing house Table A.1 – Guidance on ratings to be specified by the manufactureror to be agreed upon with the testing house |
| 33 | Bibliography |
