BS PD IEC/TS 62788-7-2:2017定义了表征聚合物耐候性的试验程序 光伏组件或系统中使用的组件材料。本文的方法 本文件重点介绍了聚合物背板和密封剂，但也可能适用 其他材料；然而，这些并没有作为准备工作的一部分进行验证。本文件包括一套人工风化暴露，包括稳态 模拟太阳辐照度、温度和湿度条件的应用 通过风化测试，达到稳定水平。 循环应力，包括热应力和湿/干应力 循环留作将来的规格。本文件中的风险敞口旨在供其他标准参考，并作为 支持光伏组件和组件的研究和产品开发。不同的 曝光可用于针对特定气候/安装配置，具体如下: 如何将剩余的暴露应用于这些标准（例如，成分表征 标准，模块资格标准）。资料性附录，包括一系列气候/应用的参数说明 在开发曝光套件时使用的配置作为参考。交叉引用:IEC 62788-1-4:2016IEC 60904-3:2016ASTM D7869-17IEC TS 61836:2016IEC 61730-1:2016ASTM G151-10IEC TS 62788-2:2017ASTM G155-13ASTM G154-16购买本文件时提供的所有当前修订版均包括在内。

BS PD IEC/TS 62788-7-2:2017 defines test procedures to characterize the weatherability of polymeric component materials used in photovoltaic (PV) modules or systems. The methods in this document have been focused on polymeric backsheets and encapsulants, but may be applied to other materials; however, these were not verified as part of the preparation.This document includes a suite of artificial weathering exposures, consisting of a steady-state application of simulated solar irradiance, temperature, and humidity conditions maintained at stable levels through the weathering test. Cyclic stresses, including thermal and wet/dry cycles are left for future specifications.Exposures in this document are intended for reference by other standards and as a tool to support research and product development for PV components and modules. Different exposures may be used to target specific climate/mounting configurations, with the specifics of how to apply the exposures left to those standards (e.g. component characterization standards, module qualification standards).An informative annex including parametric descriptions of a range of climate/application configurations used in developing the exposure suites is provided as a reference.Cross References:IEC 62788-1-4:2016IEC 60904-3:2016ASTM D7869 - 17IEC TS 61836:2016IEC 61730-1:2016ASTM G151 - 10IEC TS 62788-2:2017ASTM G155 - 13ASTM G154 - 16All current amendments available at time of purchase are included with the purchase of this document.