IS 9051 : 1979 Specification for Rheostats

1 Scope

1.1 This standard covers requirements and tests for varioustypes of continuously rated rheostats required for regulating thefield current of rotating electrical machines and rheostats usedfor similar other electrical purposes.

2 References

IS 2 :1960Rules for rounding off numerical values

IS 2106 : Part XI :1965 Environmental tests for electronicequipment:Part XI Water spray test

IS 2106 : Part X : 1965 Environmental testsfor electronic equipment:Part X water immersion test

IS 2148 :1962Specification for flameproof enclosures ofelectrical apparatus

IS 4905 :1968Methods for random sampling