IEC TS 63126:2020定义了在导致模块温度升高的条件下部署的模块的附加测试要求，这些条件超出了IEC 61215-1和IEC 61730-1以及相关组件标准IEC 62790和IEC 62852的范围。IEC 61215-2和IEC 61730-2（以及相关组件标准IEC 62790和IEC 62852）中规定的测试条件假设这些标准适用于第98百分位温度（T98th）（即模块每年预计等于或超过175.2小时的温度）低于70°C的模块部署。 本文件定义了两种温度范围，温度等级1和温度等级2，其设计考虑了在具有安装配置的环境中的部署，使得对于温度等级1，T98th小于或等于80°C，对于温度等级2，T98th小于或等于90°C。

IEC TS 63126:2020 defines additional testing requirements for modules deployed under conditions leading to higher module temperature which are beyond the scope of IEC 61215-1 and IEC 61730-1 and the relevant component standards, IEC 62790 and IEC 62852. The testing conditions specified in IEC 61215-2 and IEC 61730-2 (and the relevant component standards IEC 62790 and IEC 62852) assumed that these standards are applicable for module deployment where the 98th percentile temperature (T98th), that is the temperature that a module would be expected to equal or exceed for 175,2 h per year, is less than 70 °C.
This document defines two temperature regimes, temperature level 1 and temperature level 2, which were designed considering deployment in environments with mounting configurations such that the T98th is less than or equal to 80 °C for temperature level 1, and less than or equal to 90 °C for temperature level 2.