1.1 本试验方法包括测定涂有绝缘漆的矩形和正方形纤维、薄膜包裹或薄膜绝缘电磁线的耐热性。 1.2 以SI单位给出的值是标准值。括号中给出的值仅供参考。 1.3 本标准并不旨在解决与其使用相关的所有安全性问题（如果有）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践并确定法规限制的适用性。 第节给出了具体的预防声明 5 . 附注1: 没有类似或等效的IEC标准。 1.4 本国际标准是根据世界贸易组织发布的关于制定国际标准、指南和建议的原则的决定中确立的国际公认的标准化原则制定的iers贸易（TBT）委员会。 ======意义和用途====== 4.1 当施加到相同的纤维、薄膜包裹或薄膜绝缘的电磁线上时，单个清漆在暴露于高温时表现不同。同样，当涂覆到不同类型的纤维、薄膜包裹或薄膜绝缘的电磁线上时以及当暴露于升高的温度时，清漆并不总是表现相同。

1.1 This test method covers the determination of thermal endurance of rectangular and square fibrous, film-wrapped, or film insulated magnet wire coated with an insulating varnish. 1.2 The values given in SI units are the standard. The values given in parentheses are for information only. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. A specific precautionary statement is given in Section 5 . Note 1: There is no similar or equivalent IEC Standard. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 4.1 Individual varnishes behave differently when applied to the same fibrous, film-wrapped, or film insulated magnet wire when exposed to elevated temperatures. Likewise, a varnish does not always behave the same when applied to different types of fibrous, film-wrapped, or film insulated magnet wires and when exposed to elevated temperatures.