HD 555.22 S1:1990

Specifications for particular types of winding wires - Part 22: Polyester(imide) enamelled round copper winding wire overcoated with polyamide, class 180

Scope

This standard relates to enamelled round copper winding wire of class 180 with a dual coating - The underlying coating is based on polyester or polyesterimide resin which may be modified - The superimposed coating is based on polyamide resin (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 - It should retain the essential chemical identity of the original resin and meet all specified wire requirements) - Class 180 is a thermal class that requires a minimum temperature index of 180 and a heat shock temperature of at least 20° C - The range of nominal conductor diameters covered by this standard is: Grade 1) 0,050 mm up to and including 3,150 mm - Grade 2) 0,050 mm up to and including 5,000 mm - Grade 3) 0,250 mm up to and including 1,600 mm (The nominal conductor diameters are taken from IEC Publication 182-1)