特种绕组线规范第18部分:120级聚乙烯醇缩乙醛漆包扁铜线

[中文适用范围]： 本部分IEC 60317规定了120级聚缩醛或聚缩甲醛树脂单涂层漆包矩形铜绕组线的要求，该树脂可以改性，只要保持原始树脂的化学特性并满足所有规定的线材要求。 注1 改性树脂是经过化学变化或含有一个或多个添加剂以提高某些性能或应用特性的树脂。 120级是一个热等级，要求最低温度指数为120，热冲击温度至少为155°C。 与温度指数对应的摄氏度温度不一定是推荐线材运行的温度，这将取决于许多因素，包括所涉及设备的类型。 注2 聚缩醛是通过聚缩醛醇与醛缩合产生的一系列热塑性乙烯基树脂的总称。例如聚缩醛、聚缩甲醛和聚缩丁醛。 本文件涵盖的标称导体尺寸范围为： 宽度：最小2.0毫米；最大31.5毫米；厚度：最小0.80毫米；最大10.0毫米。 1级和2级线材包含在本规范中，适用于所有导体范围。 宽度和厚度的指定组合以及宽度/厚度的指定比率在IEC 60317-0-2中给出。 [外文原描述]： IEC 60317-18:2020 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition. IEC 60317-18:2020 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 acetate 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. This fourth edition cancels and replaces the third edition published in 2004 and Amendment 1:2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - modification of the Scope (Clause 1); - revision to thermal class designation from 105 to 120 in 3.2.2; - renaming of stretching test to adherence test, and modification to the requirements in 8.2; - revision to the cut-through requirement in Clause 10.