IEC 60317-69 Ed. 1.0 en:2017

IEC 60317-69:2017(E) specifies the requirements of enamelled rectangular aluminium winding wire of class 220 with a dual coating. The underlying coating is based on polyester or polyesterimide resin, which may be modified providing it retains the chemical identity of the original resin and meets all specified wire requirements. The superimposed coating is based on polyamide-imide resin. The range of nominal conductor dimensions covered by this standard is:
Wires of grade 1 and grade 2 are included in this part of IEC 60317 and apply to the complete range of conductors. The specified combinations of width and thickness as well as the specific ratio width/thickness are given in IEC 60317.
This publication is to be read in conjunction with IEC 60317-0-9:2015
Keywords: insulated wires used for windings in electrical equipment, class 220