Tests in climatic chamber provides accelerated aging of PV modules. It is thus possible to determine what will be the PV modules performance for several years of operation under normal weather conditions.
Expresion of the results of climatic test is based on the differences between results of the test that are performed before and after the climatic test:
Climatic tests are performed in a climatic chamber EWSX282-30CW with automatic regulation of temperature and relative humidity from manufacturer Espec North America.
Test is performed according to IEC 61215:2005.
The purpose of this test is to determine the ability of the PV module to withstand the effects (material fatigue, temperature stresses etc…) of fast changes of temperatures from 85°C to -40°C.
This test put a strain on PV module so that the subsequent effect of different coefficients of thermal expansion of parts of the PV module is show up hidden defects like poor soldering, cracked cells, delamination, performance reduction and inuslation resistance etc.).
