标准摘要
[中文适用范围]： 本国际标准涵盖了测定浸渍用电绝缘树脂和清漆耐热性（温度指数）的试验方法。它是通过浸渍玻璃布并测量热老化前后的电气强度或击穿电压来完成的。它涵盖了 IEC 60455-3-5 和 IEC 60464-3-2 中描述的材料以及类似材料。 [外文原描述]： IEC 60370:2017 covers methods of test for the determination of thermal endurance (temperature index) of electrical insulating resins and varnishes for impregnation purposes. It is done by means of impregnating glass cloth and measuring electric strength or breakdown voltage before and after heat ageing. It covers the materials described in IEC 60455-3-5 and IEC 60464-3-2 and similar materials. This second edition cancels and replaces the first edition published in 1971. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - this document is now describing two methods, the existing one, following ASTM D1932 and new a method following the requirements of IEC 60455-2 and IEC 60464-2; - the theoretical background and way of calculation were removed, and replaced by reference to IEC 60216; - the layout and numbering system was updated; - for better understanding and illustration purposes examples were added. Keywords: thermal endurance testing
英文名称Test procedure for thermal endurance of insulating resins and varnishes for impregnation purposes - Electric breakdown methods