IEC 60216-5:20 22规定了用于从根据IEC 60216-1和IEC 60216-2的说明获得的实验数据导出材料的相对温度指数的实验和计算程序。计算程序是对IEC 60216-3的补充。还提供了在单个固定时间和温度后评估热老化的指南，无需外推。与上一版相比，此版本包括以下重大技术变更: 附件C“计算机程序”已完全返工； 在3.1中，术语“ATE”和“RTE”被“ATI”和“RTI”取代，以强调它们指的是电绝缘材料(EIM)。 本标准应与IEC 60216-1:20 13、IEC 60216-2:20 05和IEC 60216-3:20 21一起阅读。

IEC 60216-5:2022 specifies the experimental and calculation procedures to be used for deriving the relative temperature index of a material from experimental data obtained in accordance with the instructions of IEC 60216-1 and IEC 60216-2. The calculation procedures are supplementary to those of IEC 60216-3. Guidance is also given for assessment of thermal ageing after a single fixed time and temperature, without extrapolation. This edition includes the following significant technical changes with respect to the previous edition:

1. Annex C “Computer program” has been completely reworked;
2. in 3.1, the terms “ATE” and “RTE” were replaced by “ATI” and “RTI” to emphasize their reference to an electrical insulating material (EIM).

This standard is to be read in conjunction with IEC 60216-1:2013, IEC 60216-2:2005 and IEC 60216-3:2021.