IS 12677 : 1989 Internal fuses for series capacitors

UDC 621.316.923 : 621.319.4 ETD 29
Reaffirmed 2021

1 Scope

1.1 This standard covers the requirements, tests and guidancefor coordination of fuses used to protect series capacitors inaccordance with IS 9835 : 1981 `Specification for series capacitorsfor power systems'.

1.2 This standard does not apply to fuses for which the serviceconditions, in general, are incompatible with the requirements ofthe standard unless other-wise agreed between the manufacturer andthe purchaser.

1.3 The guidance for coordination of fuse protection is given inAnnex A.

2 References

IS 1885 : Part 42 :1986 Electrotechnical vocabulary:Part 42 Power capacitors

IS 9224 (inparts)Specification for low voltage fuses

IS 9226 :1979Recommendations for load distribution forpassenger cars

IS 9385 (inparts)Specification for high voltage fuses

IS 9835 :1981Specification for series capacitors for powersystem

IS 9926 :1981Specification for fuse wire used in rewirabletype electric fuses up to 650 V