IEC 60317-33:2015(E) specifies the requirements of polyester glass fibre wound, impregnated, bare or enamelled rectangular copper winding wire, temperature index 200. The range of nominal conductor dimensions covered by this standard is: - width: min 2,0 mm max 16,0 mm; - thickness: min 0,80 mm max 5,60 mm. The specified combinations of width and thickness as well as the specified width/thickness ratio are according to IEC 60317-0-4. This second edition cancels and replaces the first edition published in 1990, Amendment 1:1997 and Amendment 2:2005. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - new 3.2.2 containing general notes on winding wire, formerly part of the scope; - introduction of glass fibre coverings over grade 1 enamelled conductor in 3.2.2; - revision to references to IEC 60317-0-4 to make clear that their application is normative. Keywords: temperature index 200, winding wire This publication is to be read in conjunction with IEC 60317-0-4:2015.