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On June 16, JA Solar announced that its series of PV modules passed the four-stage hail impact test at the RETC laboratory in Fremont, California, USA in May this year. This is the success of the Jingao component after passing the TUV Rhine Hail Impact Test in March this year. The RETC Grade 4 Hail Impact Test uses a hard ice hockey ball that is 2 inches (about 50.8 mm) in diameter at -17 degrees Celsius to impact different parts of the glass surface of the PV module, including the center, at a speed of up to 76 meters per second (274 km/h). The part, the corner of the component, the edge area along the metal frame, and other random parts. Compared with the impact test record of TUV Rhein in March with a diameter of 45mm and an impact speed of 30.7 meters per second, the RETC test results show that the overall resistance of the JAA component to kinetic energy impact is increased by more than 8 times.
“In order to cope with more extreme climatic conditions, components need to have the ability to pass a higher level of hail testing.†Mr. Shan Wei, Chief Technology Officer of JA Solar, said: “Through this test, the quality and quality of JA Solar modules have been proven again. High reliability, but also reflects our commitment to meet the diverse needs of our customers through continuous product performance enhancement, product innovation and strict quality control."
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