This part of IEC 60317 specifies the requirements of solderable enamelled round copper winding wire of class 180 with a dual coating. The underlying coating is based on 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 a bonding layer based on a thermoplastic resin.Cross References:EN 60317-0-1:2014IEC 60317-0-1:2013IEC 60264IEC 60851IEC 60317Incorporates the following:Amendment, October 2019