JA Solar Holdings Co., Ltd. today announced its standard modules successfully passed the Class A fire test in accordance with UL1703 standard for Type 1 modules. During the test, all six sets of BOM used for JA Solar's type-1 modules passed the UL Class A fire test conducted by Intertek.
The Class A fire test for Type 1 PV modules set forth by UL-1703 requires the tested module to endure direct torch burning for more than 10 minutes from gas flame (the temperature of flame is 760±28oC, with wind speed at 5.4±0.2m/s, allowed flame spreading distance is under 1.82 meters). The criteria of this Class A test is far stricter than that of the previously commonly accepted Class C standard, which only requires the tested PV module to take 4 minutes of direct burning (with the flame temperature at 704±28oC, the wind speed at 5.4±0.2m/s and allowed flame spreading distance at under 3.9 meters). It turned out that, during the Class A test conducted at Intertek, the JA Solar's Type-1 modules subjected to the test not only withstood the inferno-like heat without becoming self-flammable; the flame torch was not even able to burn through the PV panel.