scope:

IEC 60317-46:2013 specifies the requirements of enamelled round copper winding wire of class 240 with a sole coating of aromatic polyimide resin. The range of nominal conductor diameters covered by this standard is: - grade 1: 0,020 mm up to and including 2,000 mm; - grade 2: 0,020 mm up to and including 5,000 mm. The nominal conductor diameters are specified in Clause 4 of IEC 60317-0-1:2013. This second edition cancels and replaces the first edition published in 1997. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - deletion of the 'in some countries' statement in the scope; - new subclause containing general notes on winding wire, formerly a part of the scope; - new subclause containing requirements for appearance; - revision to the notes in Clause 19, Dielectric dissipation factor; - new Clause 23, Pin-hole test. Keywords: requirements of enamelled round copper winding wire, class 240, sole coating of aromatic polyimide resin