1.1 General This test is applicable to enamelled round wire with a nominal conductor diameter over 0,250 mm and to enamelled rectangular wire. The test is not suitable for round wires with a nominal conductor diameter up to and including 0,250 mm.…
Test 4: Dimensions of enameled winding wires
For definitions, general notes on methods of test and the complete series of methods of test for winding wires, see IEC 60851-1. Round and rectangular wire The equipment used shall have a precision better than 2 µm. If a…
Test 20: Resistance to hydrolysis and to transformer oil
1 General This test is applicable to enamelled wire. Resistance to hydrolysis is expressed by appearance and adherence after exposure of the specimens to transformer oil in the presence of water under pressure and at elevated temperature. Resistance to transformer…
Test 5:Electrical Resistance Of Enameled Wire
1. General notes on methods of test Unless otherwise specified, all tests shall be carried out at a temperature from 15 C to 40 C and a relative humidity of 25 % to 75 %. Before measurements are made, the…