1. Scope

1.1 This standard (Part 5) specifies the requirements of enamelled round aluminium winding wire of class 155 with a sole coating based on polyester resin, which may be modified providing it retains the chemical identity of the original resin and meets all specified wire requirements.

NOTE - A modified resin is a resin that has undergone a chemical change, or contains one or more additives to enhance certain performance or application characteristics.

Class 155 is a thermal class that requires a minimum temperature index of 155 and a heat shock temperature of at least 175°C.

The temperature in degrees Celsius corresponding to the temperature index is not necessarily that at which it is recommended that the wire be operated and this will depend on many factors, including the type of equipment involved.

1.2 The range of nominal conductor diameters covered by this standard is as follows:

a) Grade 1: 0.250 mm up to and including 2.500 mm; and

b) Grade 2: 0.250 mm up to and including 2.500 mm.

The nominal conductor diameters are specified in 4 of IS 13730 (Part 0/Sec 3).

2. References

The standard given below contains provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the edition indicated was valid. All standards are subject to revision,and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent edition of the standard indicated below:

13730 (Part 0/Sec 3) : 2012 Specification for particular types of winding wires : Part 0 General requirements, Section 3 Enamelled round aluminium wires is necessary adjunct to this standard