IS 8143 : 1976 Plugs and keys for resistance boxes

1 Scope

1.1 This standard specifies the requirements and tests for plugsand keys used in electrical apparatus, such as, plug typeresistance boxes and post office boxes.

2 References

IS 2 :1960 Rules for rounding offnumerical values

IS 1565 : 1966Specification for electrical apparatus comprisingresistors

IS 2036 : 1974Specification for phenolic laminated sheets

IS 4905 : 1968Methods for random sampling