IEC 62788-5-1:20 20提供了用于评估设计用作边缘密封的材料性能的标准化测试方法的程序。当模块采用旨在保护对湿气敏感的光伏(PV)材料的不可渗透（或极低渗透性）前板和底板构造时，湿气仍有可能从侧面进入。 本文件中描述的测试方法旨在用于标准化边缘密封的评估方式。这些测试中只有一部分适用于IEC 61215和IEC 61730，其状态取决于具体的设计。

IEC 62788-5-1:2020 provides procedures for standardized test methods for evaluating the properties of materials designed to be used as edge seals. When modules are constructed with impermeable (or extremely low permeability) front- and backsheets designed to protect moisture-sensitive photovoltaic (PV) materials, there is still the possibility for moisture to get in from the sides.
The test methods described in this document are intended to be used to standardize the way edge seals are evaluated. Only some of these tests are applied for IEC 61215 and IEC 61730, and that status depends on the specific design.