IS 11256 : Part 2 : 1985 Method of test for determination of thermal endurance of insulating varnishes: Part 2 Measurement of loss of mass

1 Scope

1.1 This standard (Part 2) covers this method for determiningthe relative thermal endurance of insulating varnishes by means ofmeasuring weight of the specimens of varnished glass cloth panelsbefore and after at elevated temperature.

2 References

IS 2260 :1973Specification for preconditioning, conditioningand testing of solid electrical insulatingmaterials

IS8504Guide for determination of thermal enduranceproperties of electrical insulating materials:

Part 1 :1977Temperature indices and thermalendurance profiles.

Part3(under preparation)

IS 10026 : Part 1 :1981 Specification for insulating varnishescontaining solvents:Part 1 Definitions and general requirements