1.1 This standard lays down the dimensional, safety and performance requirements of bi-pin lampholders for use with tubular fluorescent lamps for general lighting service fitted with G-5 and G-13 bi-pin caps [ see
IS: 2418 (Part III )-1977* ]. These landholders are intended for use in circuits connected to an ac supply not exceeding 250 V to earth and not exceeding 660 V when the lamp is removed.
1.1.1 This standard does not cover bi-pin lampholders designed for special purposes, such as waterproof type, flameproof type, etc.
IS 3323-1980 history
1980IS 3323-1980 Specification for two-pin lampholders for tubular fluorescent lamps