IEC 60317-80 pdf – Specifications for particular types of winding wires – Part 80: Polyvinyl acetal enamelled rectangular copper wire , class 1 20 , with a bonding layer 1 Scope This part of lEC 60317specifies the requirements of enamelled rectangular copper winding wireof class 120 with a dual coating. The underlying coating is based on polyvinyl acetal resin,which can...