IS 9778 : 1981 Guide for Evaluation of Thermal Endurance of Varnish Bonded Glass Fibre Covered Rectangular Copper Conductors

UDC 621.315.55 [669.3-422.42] 621.315.332.6 : 620.199        ETD33

Reaffirmed 2021

1 Scope

1.1 This guide lays down a test procedure for evaluating the useful life of varnish bonded glass fibre lapped or braided rectangular copper conductors of thickness ranging from 0.8 to 5.6 mm and width ranging from 2 to 16 mm.

1.2 This standard does not apply to enamelled and glass fibre covered rectangular copper conductors.

2 Reference

IS 2 : 1960   Rules for rounding off numerical values