IEC Edition 2. Expulsion fuses are fuses in which the arc is extinguished by the expulsion effects of the gases produced by the arc. Expulsion fuses are classified according to the TRV transient recovery voltage capability in classes A and B. This standard covers only the performance of fuses, each one comprising a specified combination of fuse-base, fuse-carrier and fuse-link which have been tested in accordance with this standard; successful performance of other combinations cannot be implied from this standard. This standard may also be used for non-expulsion fuses in which the interruption process waits for natural current zero to clear the circuit. NOTE 3 This standard does not cover load-switching nor fault-making capabilities.
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IEC 60282-2 PDF
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IEC 60282-2 High-voltage fuses – Part 2: Expulsion fuses