标准号:IS 9224 Pt.1-1979
发布日期:1980/2/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围:1.1 This standard ( Part I) specifies the general requirements of fuses with rated breaking capacities of not less than 2 kA intended for protecting power-frequency ac circuits of rated voltages not exceeding 1 000 V.Note — This standard may also be used for fuses for dc circuits of rated voltages up to 1 500 V as far as applicable.1.1.1 Combinations of fuse-link with mechanical switching devices are not covered in this standard. Fuse-links intended to be used in such combinations as well as fuse-links provided with indicating devices and/or strikers shall nevertheless comply with the requirements specified in this standard.1.2 This standard does not apply to:a) miniature fuses,b) sami-enclosed rewirable fuses covered in IS : 2086-1963〓, andc) D-type fuses covered in IS : 8187-1976〓.
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