IS 1255 : 1983 Code of practice for installation and maintenance of power cables upto and including 33 kV rating

1 Scope

1.1 This standard gives recommendations and broad guidelines forselection, transportation, laying, jointing, termination, testing,commissioning, maintenance and fault localization of power cablesup to and including 33 kV ratings.

This standard applies to cables conforming to IS 692 : 1973, IS1554 : Part 1 : 1976, IS 1554 : Part 2 : 1981, IS 7098 : Part 1 :1977 and IS 7098 : Part 2 : 1973.

1.2 This standard does not apply to installation of cables forspecial applications, such as, mines, quarries and oil fields whereother statutory regulations govern.

2 References

IS 2 :1960Rules for rounding off numerical values.

IS 692 :1973Specification for paper insulated lead-sheathedcables for electricity supply.

IS 1554 : Part 1 :1976 Specification for PVC insulated(heavy duty)electric cables: Part 1 For working voltages upto and including 1 100 V.

IS 1554 : Part 2 :1981 Specification for PVC insulated(heavy duty)electric cables: Part 2 For working voltagesfrom 3.3 kV up to and including 11 kV.

IS 1885 : Part 32 :1971 Electrotechnical vocabulary: Part 32Cables,Conductors and accessories for electricitysupply.

IS 2099 :1973Specification for bushings for alternatingvoltages above 1 000 volts.

IS 3043 :1966Code of practice for earthing.

IS 3961 : Part 1 :1967 Recommended current ratings forcables: Part 1Paper insulated lead-sheathed cables.

BS 3961 : Part 2 :1967 Recommended current ratings forcables: Part 2PVC-insulated and PVC-sheathed heavy dutycables.

IS 7098 : Part 1 :1977 Specification for cross linkedpolyethyleneinsulated PVC sheathed cables: Part 1 For working voltages up to and including 1 100volts

IS 7098 : Part 2 :1973 Specification for cross linkedpolyethyleneinsulated PVC sheathed cables: Part 2 Forworking voltages from 3.3 kV up to andincluding 33 kV.

IS 9646 :1980Dimensions for moulds suitable for castresin-based tee-joints for cables for voltagesup to and including 1 100 V.