IS 283 : 1976 Porcelain insulators for telegraph and telephone lines

1 Scope

1.1 This standard covers the pin type porcelain insulatorsintended for use in supporting telegraph and telephone lines.

1.1.1 This standard does not cover insulators for communicationlines running in close proximity to power transmission lines.

2 References

IS 2 : 1960 Rules for rounding off numerical values (revised).

IS 1441 : 1966 Specification for insulator stalks for telegraphs and telephone lines