IS 10406-1983

标准号：IS 10406-1983
发布日期：1983/6/1 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：1.1 This standard applies to single-phase, double-wound transformers, intended primarily for supplying current to those bell-signalling circuits in coal mines and in other industries where an explosion hazard may exist, which are required to be intrinsically safe, in accordance with the definition of the term contained in IS : 5780-1980〓.