This part of IEC 60317 specifies the requirements of enamelled rectangular copper winding wires of class 120 with a sole coating based on polyvinyl acetal or polyvinyl formal resin, which can be modified provided it retains the chemical identity of the original resin and meets all specified wire requirements
NOTE 1 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.
NOTE 2 Polyvinyl acetal is a general name for a family of thermoplastic vinyl resins produced by the condensation of polyvinyl alcohol with an aldehyde. Examples are polyvinyl acetal, polyvinyl formal and polyvinyl butyral.
The range of nominal conductor dimensions covered by this document is:
– width: min. 2,0 mm max. 31,5 mm;
– thickness: min. 0,80 mm max. 10,0 mm.
Wires of grade 1 and grade 2 are included in this specification and apply to the complete range of conductors.
The specified combinations of width and thickness as well as the specified ratio width/thickness are given in IEC 60317-0-2.dition 4.0 2020-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Specifications for particular types of winding wires – Part 18: Polyvinyl acetal enamelled rectangular copper wire, class 120 Spécifications pour types particuliers de fils de bobinage – Partie 18: Fil de section rectangulaire en cuivre émaillé avec acétal de polyvinyle, classe 120 IEC 60317-18:2020-06(en-fr) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright ？