IS 9385 : Part 4 : 1983 High voltage fuses: Part 4 Determination of short-circuit power factor for testing of high voltage fuses

1 Scope

1.1 This standard (Part 4) covers guidelines on methods ofdetermination of short-circuit power factor for testingcurrent-limiting fuses and expulsion and similar fuses.

1.2 The complete method of short-circuit tests on high voltagefuses are covered in Parts 1 and 2 of this standard.

2 References

IS 2 :1960Rules for rounding off numerical values

IS 9385 : Part 1 :1979 Specification for voltage fuses:Part 1 Current limiting fuses

IS 9385 : Part 2 :1980 Specification for voltage fuses: Part 2Expulsion and similar fuses