标准摘要
[中文适用范围]： 本文件规定了涂覆单一涂层（基于聚乙烯醇缩醛或聚乙烯醇缩甲醛树脂，在保持原始树脂化学身份并满足所有规定线材要求的前提下可进行改性）的120级绝缘矩形铜绕线的要求。适用的标称导体尺寸范围为：宽度最小2.0 mm，最大31.5 mm；厚度最小0.80 mm，最大10.0 mm。等级1和等级2的线材包含在此规范中，并适用于所有导体范围。规定的宽度和厚度组合以及规定的宽厚比在IEC 60317-0-2中给出。 [外文原描述]： 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.
英文名称Specifications for particular types of winding wires - Part 18: Polyvinyl acetal enamelled rectangular copper wire, class 120