IS 4257 : Part 2 : 1986 Dimensions for clamping arrangements for porcelain transformer bushings: Part 2 For 72.5 kV and 123 kV bushings

1 Scope

1.1 This standard (Part 2) covers the clamping arrangements forporcelain transformer bushings of 72.5 kV and 123 kV ratings.

2 References

IS 2 :1960Rules rounding off numerical values

IS 1359 :1977Specification for electroplated coatings of tin

IS 1572 :1968Specification for electroplated coatings ofcadmium or iron and steel

IS 1573 :1970Specification for electroplated coatings ofzinc or iron and steel

IS 2102 : Part 1 :1980 Specification for allowable deviations fordimensions without specified tolerances

IS3347Dimensions for procelain transformer bushings

IS8603Dimensions for procelain transformer bushingsfor use in heavily polluted atmospheres

IS 4759 :1979Specification for hot dip zinc coatings onstructural and other allied products