IS 5350 : Part 1 : 1970 : Dimensions of Indoor and Outdoor Porcelain Post Insulators and Post Insulator Units for Systems with Nominal Voltages Greater than 1000 V - Part I : Indoor Post Insulators

1. Scope

1.1 This standard (Part I) applies to post insulator of ceramic materia: intended for indoor service in electrical installations or equipment operating on alternating current with a rated voltage greater than 1000 V and a frequency not greater than 100 Hz. The insulators covered by this standard are primarily intended for use in isolators (disconnectors) or as bus bar or fuse supports.