IEC 60127-8:2018 relates to fuse resistors with particular overcurrent protection rated up to AC 500 V and\/or DC 500 V for printed circuits and other substrate systems, used for the protection of electric appliances, electronic equipment and component parts thereof, normally intended to be used indoors. It does not apply to fuse resistors with particular overcurrent protection for appliances intended to be used under special conditions, such as in a corrosive or explosive atmosphere. The object of this part of IEC 60127 is a) to establish uniform requirements for fuse resistors with particular overcurrent protection so as to protect appliances or parts of appliances in the most suitable way; b) to define the performance of the fuse resistors with particular overcurrent protection, so as to give guidance to manufacturers of electrical appliances and electronic equipment and to ensure replacement of fuse resistors with particular overcurrent protection by those of similar dimensions and characteristics; c) to establish uniform test methods for fuse resistors with particular overcurrent protection, so as to allow verification of the values (for example rated dissipation, functioning characteristic and rated breaking capacity values) specified by the manufacturer. This part of IEC 60127 applies in addition to the requirements of IEC 60127-1. This first edition of IEC 60127-8 cancels and replaces IEC PAS 60127-8:2014. This international standard is to be used in conjunction with IEC 60127-1. Keywords: Miniature Fuses, Fuse-Resistors, Overcurrent Protection<\/p>\n
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| 2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 5<\/td>\n | Annex ZA(normative)Normative references to international publicationswith their corresponding European publications <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | CONTENTS <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 1 Scope 2 Normative references <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 4 General requirements 5 Standard ratings <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 6 Marking 7 General notes on tests 7.1 Atmospheric conditions for testing 7.2 Type tests 7.2.1 General <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 7.3 Fuse-bases for tests 7.3.1 General 7.3.2 General requirements <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 7.3.3 Through-hole mounting of fuse resistors with particular overcurrent protection 7.3.4 Surface mounting of fuse resistors with particular overcurrent protection 7.4 Nature of supply 8 Dimensions and construction 8.1 Dimensions 8.1.1 Creepage distances and clearances <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 8.2 Construction 8.3 Terminations Tables Table 1 \u2013 Creepage distances and clearances(absolute minimum values) <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 8.3.1 Through-hole mount fuse resistors with particular overcurrent protection 8.3.2 Surface mount fuse resistors with particular overcurrent protection 8.4 Alignment and configuration of terminations 8.5 Soldered joints <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 8.6 Solderability of terminations 8.7 Resistance to soldering heat 9 Electrical requirements 9.1 Resistance value 9.2 Functioning characteristic at the minimum breaking dissipation 9.2.1 Functioning characteristic at an ambient temperature of 70 \u00b0C 9.2.2 Test at elevated temperature 9.2.3 Test procedure <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 9.2.4 Presentation of results 9.3 Rated breaking capacity 9.3.1 Operating conditions 9.3.2 Criteria for satisfactory performance <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 9.3.3 Insulation resistance 9.3.4 Dielectric strength 9.4 Endurance tests 9.5 Maximum sustained dissipation 9.6 Pulse tests 9.7 Temperature of fuse resistors with particular overcurrent protection Table 2 \u2013 Test voltages for dielectric strength <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | 9.8 Operating overvoltage <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | Table 3 \u2013 Testing schedule for individual dissipation ratings <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | Figures Figure 1 \u2013 Test board for through-hole mount fuse resistors with particular overcurrent protection <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | Figure 2 \u2013 Test board for surface mount fuse resistors with particular overcurrent protection <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | Figure 3 \u2013 Test fuse-base <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | Figure 4 \u2013 Bending jig for surface mount fuse resistors with particular overcurrent protection Figure 5 \u2013 Test circuit for the tests according to 9.3 <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Miniature fuses – Fuse resistors with particular overcurrent protection<\/b><\/p>\n |