IS 7404 : Part 1 : 1991 Paper Covered Copper Conductors - Specification - Part 1 : Round Conductors

1 Scope

1.1 This standard (Part 1) covers requirements and tests forround copper conductors, covered with two or more layers of paper,primarily intended for transformer windings.

1.2 The requirements of this standard are applicable todiameters 0.250 to 5.000 mm, both inclusive.

2 References

IS 482 :1981Reels for covered round electricalwinding wires

IS 4800 : Part 1 :1968Enamelled round winding wires:Part 1 Conductors data

IS 9335 : Part 3 : Sec 1 :1984 Cellulosic papers for electricalpurposes:Part 3 Specifications for individualmaterials, Section 1 General purposes electricalpaper