IEC 60269-2:1986
Low-voltage fuses. Part 2: Supplementary requirements for fuses for use by authorized persons (fuses mainly for industrial application)
The following characteristics of fuses are specified in addition to IEC Publication 269-1: - minimum rated breaking capacities; - time-current characteristics; - I2t characteristics; - standard conditions of constructions; - power dissipation and acceptance.
The following characteristics of fuses are specified in addition to IEC Publication 269-1: - minimum rated breaking capacities; - time-current characteristics; - I2t characteristics; - standard conditions of constructions; - power dissipation and acceptance.
Fuses for use by authorized persons are generally designed to be used in installations where the fuse-links are accessible to, and may be replaced by, authorized persons only. This standard is divided into fuse systems,(A thru I), each dealing with a specific example of standardized fuses for use by authorized persons.
This part of IEC 60269 is applicable to fuses incorporating enclosed current-limiting fuse-links with rated breaking capacities of not less than 6 kA, intended for protecting power-frequency a.c. circuits of nominal voltages not exceeding 1 000 V or d.c. circuits of nominal voltages not exceeding 1 500 V. Subsequent parts of this standard, referred to herein, cover supplementary requirements for such fuses intended for specific conditions of use or applications.
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