Research on accelerated durability test of photovoltaic hollow modules

The durability of photovoltaic hollow glass modules for buildings is an important index. In accordance with the Chinese national standard of the hollow glass (GB/T11944-2012) and referring to the international standard (IEC61215:2005) on test method for PV module in simulated environments, we have designed and conducted an accelerated durability test of photovoltaic hollow glass modules. Based on analysis of the test results, the paper puts forward several critical technical points that should be noticed in the testing process, and points out the failure modes and its mechanism, and would thus help to improve the reliability and durability of photovoltaic hollow modules. Keyword: photovoltaic hollow modules, high temperature and humidity, durability, molecular sieve.