1 Scope
This part of IEC 60317 specifies the requirements of solderable enamelled round copper winding wire of class 155 with a sole coating based on polyurethane resin, which may be modified providing it retains the chemical identity of the original resin and meets all specified wire requirements.
NOTE 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.
The range of nominal conductor diameters covered by this standard is:
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— Grade 1: 0,018 mm up to and including 0,800 mm;
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— Grade 2: 0,020 mm up to and including 0,800 mm.
The nominal conductor diameters are specified in Clause 4 of IEC 60317‑0‑1:2013.