60269-4 AMD 1-2012 AMENDMENT 1 Low-voltage fuses – Part 4: Supplementary requirements for fuse-links for the protection of semiconductor devices (Edition 5.0)
AMENDEMENT 1 Fusibles basse tension – Partie 4: Exigences supplémentaires concernant les éléments de remplacement utilisés pour la protection des dispositifs à semiconducteurs (Edition 5.0)
AMENDMENT 1 Low-voltage fuses – Part 4: Supplementary requirements for fuse-links for the protection of semiconductor devices (Edition 5.0) 是非强制性国家标准，您可以免费下载前三页
Scope and objectThese supplementary requirements apply to fuse-links for application in equipment containing semiconductor devices for circuits of nominal voltages up to 1 000 V a.c. or 1 500 V d.c. and also@ in so far as they are applicable@ for circuits of higher nominal voltages.NOTE 1 Such fuse-Iinks are commonly referred to as ??semiconductor fuse-links??.NOTE 2 In most cases@ a part of the associated equipment serves the purpose of a fuse-base. Owing to the great variety of equipment@ no general rules can be given; the suitability of the associated equipment to serve as a fuse-base should be subject to agreement between the manufacturer and the user. However@ if separate fuse-bases or fuse-holders are used@ they should comply with the appropriate requirements of IEC 60269-1.The object of these supplementary requirements is to establish the characteristics of semiconductor fuse-links in such a way that they can be replaced by other fuse-links having the same characteristics@ provided that their dimensions are identical. For this purpose@ this standard refers in particular toa) The following characteristics of fuses:1) their rated values;2) their temperature rises in normal service;3) their power dissipation;4) their time-current characteristics;5) their breaking capacity;6) their cut-off current characteristics and their I2t characteristics;7) their arc voltage limits.b) Type tests for verification of the characteristics of fuses.c) The markings on fuses.d) Availability and presentation of technical data (see Annex B).