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20 August 2009 A semi-empirical method of predicting the lifetime of EVA encapsulant and polyester based backsheet materials
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Abstract
To ensure the longevity and reliability of solar modules, the PV industry has adopted a series of accelerated aging tests. Among these, the damp heat test performed at 85°C, 85% relative humidity for 1000 hrs provides the most information on the degradation of encapsulant and backsheet materials. The purpose of this work is to define the proper accelerated test conditions that represent 25 years of real field life exposure of these polymers.
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Zhiyong Xia, John H. Wohlgemuth, and Daniel W. Cunningham "A semi-empirical method of predicting the lifetime of EVA encapsulant and polyester based backsheet materials", Proc. SPIE 7412, Reliability of Photovoltaic Cells, Modules, Components, and Systems II, 74120B (20 August 2009); doi: 10.1117/12.825472; https://doi.org/10.1117/12.825472
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