Applies to high-voltage expulsion fuses and similar fuses in which the arc is extinguished by the expulsion effect of the gases produced by the arc, designed for outdoor and indoor use on a.c. power systems of 50 Hz and 60 Hz with rated voltages exceeding 1 000 V.
Specifies requirements for expulsion fuses designed for use outdoors or indoors on alternating current systems of 50 Hz and 60 Hz, and of rated voltages exceeding 1 000 V.
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