IEC 61215-2提供了一组鉴定试验，表明光伏组件设计可能没有导致早期故障的缺陷。然而，IEC 61215-2并未解决光伏组件的长期磨损问题。IEC 62788-1的这一部分设计为更严格的鉴定试验，使用高温下的加速紫外线暴露来确定聚合物封装材料是否会遭受光学透射率损失。IEC 61215-2已经包括紫外线预处理试验（MQT 10），但是，该试验的参数仅代表 有限的暴露水平（约周的紫外线剂量）。 本试验程序适用于具有代表性的试片试样，以更大的强度施加应力（相对于亚利桑那州菲尼克斯市设计），使用更类似于地面太阳光谱的辐射光谱，并使用与光伏应用更相关的暴露持续时间（即相当于几年的户外暴露）。该测试量化了密封剂的降解率，从而降低了在地面环境中操作时材料失去光学透射率的风险 环境是可以管理的。气候（或使用地点）、特定应用（效用）之间的定量关联- 安装、住宅安装、屋顶安装、机架安装、跟踪器的使用、系统电气配置及其操作），以及可针对每种特定封装材料进行测试，但不在本文件的范围内。购买本文件时可获得的所有当前修订均包含在购买本文件中。

IEC 61215-2 provides a set of qualification tests that indicate that a PV module design is likely to be free of flaws that will result in early failure. However, IEC 61215-2 does not address the long term wear-out of PV modules. This part of IEC 62788-1 is designed as a more rigorous qualification test, using accelerated UV exposure at elevated temperature to determine whether polymeric encapsulants can suffer loss of optical transmittance. IEC 61215-2 already includes a UV preconditioning test (MQT 10), however, the parameters for that test only represent a limited level of exposure (~weeks of UV dose). This test procedure is intended for representative coupon specimens, applying stress at a greater intensity (designed relative to Phoenix, AZ), using a radiation spectrum that is more similar to the terrestrial solar spectrum, and using a duration of exposure that is more relevant to the PV application (i.e., equivalent to several years of outdoor exposure). This test quantifies the degradation rate of encapsulants so that the risk of the materials losing optical transmittance during operation in the terrestrial environments can be managed. The quantitative correlation between climate (or location of use), a specific application (utility-installation, residential-installation, roof-mount, rack-mount, use of a tracker, the system electrical configuration and its operation), and the test can be established for each specific encapsulant material, but is beyond the scope of this document.All current amendments available at time of purchase are included with the purchase of this document.