IS 2486 : Part 1 : 1993 Metal fittings of insulators for overhead power lines with nominal voltage greater than 1000 V: Part 1 General requirements and tests

1 Scope

This standard (Part 1) gives the general requirements and tests for insulator fittings for use on overhead power lines having anominal voltage greater than 1000 V.

2 References

IS 209 :1979Specification for zinc

IS 226 :1975Structural steel (standard quality)

IS 410 :1977Specification for cold rolled brass sheet, stripand foil

IS 1367 : Part 1 :1980 Technical supply conditions for threaded steelfasteners : Part 1 Introduction and generalinformation

IS 1367 : Part 6 :1979 Mechanical properties and test methods for nutswith specified proof loads

IS 1570 : Part 2 :1979 Schedules for wrought steels : Part 2 Carbonsteels unalloyed steels

IS 1573 :1986Electroplated coatings of zinc on iron and steel

IS 1865 :1974Iron castings with spheroidal or nodulargraphite

IS 1875 :1978Carbon steel billets, blooms, slabs and bars for forgings

IS 2004 :1978Carbon steel forgings for general engineering purposes

IS 2107 :1977Whiteheart malleable iron castings

IS 2108 :1977Blackheart - malleable iron castings

IS 2121 : Part 1 :1981 Conductors and earth wire accessories foroverhead power lines : Part 1 Armour rods,binding wires and tapes for conductors

IS 2121 : Part 2 :1981 Conductors and earth wire accessories for overhead power lines : Part 2 Mid-span jointsand repair sleeves for conductors

IS 2486 : Part 2 :1989 Insulator fittings for overhead powerlines withnominal voltage greater than 1000 V: Part 2 Dimensional requirements

IS 2486 : Part 3 :1974 Insulator fittings for overhead powerlines withnominal voltage greater than 1 000 V : Part 3 Locking devices

IS 2629 :1966Recommended practice for hot-dip galvanizing of iron and steel

IS 2633 :1986Method of testing uniformity of coatings onzinc coated articles

IS 4759 :1984Hot-dip zinc coatings on structural steel and other allied products

IS 4905 :1968Methods for random sampling

IS 5082 :1981Wrought aluminium and aluminium alloy bars,rods, tubes and sections for electrical purposes

IS 5522 :1992Stainless steel for utensils sheets and strips

IS 5561 :1971Electric power connector

IS 6051 :1970Code for designation of aluminium and its alloys

IS 6603 :1972Stainless steel bars and flats

IS 7814 :1975 Phosphor bronze sheet, strip and foil