We often have a misconception that solar panels cannot work as long as they are damaged, and naturally they cannot generate any current. The following experiment tells us that this is the dangerous beginning.
The staff specially took a damaged module to make an experiment. This photovoltaic module is densely packed with many cracks. The staff connected the circuit to the solar panel. The damaged photovoltaic module output a current of 9 amperes, and the voltage is as high as 650V. The human body is fatal, and the same arc as the flame will be generated between the positive and negative wires. If only the surface tempered glass is damaged, it will not affect the battery plate. It is normal for the battery board to output power. If it is a battery plate It is also damaged, then it can't be used?
Of course, the staff also considered this problem. They prepared another solar panel that was burned in the fire for more than half. However, the test found that the panel will still leak electricity, and the voltage is between 12V-15V, and the 12V voltage is under the action of water flow. Jump to 300V, so once the solar panel is damaged, you should pay attention to it, let alone wash it with water.
Considerations for handling damaged solar panels
When the solar panel is damaged and piled up with the rubble of a house or the like, electricity may be generated when the solar panel is irradiated, and electric shock may be caused by bare touch.
(1) Do not touch with bare hands.
(2) When touching damaged solar panels during rescue and recovery work, wear insulating gloves such as dry wire gloves or rubber gloves.
(3) When multiple solar panels are connected by cables, unplug or cut the connected cables. If possible, cover the battery panel with a blue tarpaulin or cardboard, or face down to avoid direct sunlight.
(4) If possible, wrap the exposed copper wires in the cable cross-section with plastic tape or the like.
(5) When transporting the solar panel to an abandoned place, use caution to smash the glass. In addition, the components of the battery board are as follows: semi-reinforced glass (thickness about 3mm), battery unit (silicon plate: 10-15cm square, thickness 0.2-0.4mm, silver electrode, solder, copper foil, etc.), transparent resin, white Resin board, metal frame (mainly aluminum), wiring materials, resin box, etc.
(6) Although there is no sun at night and after sunset, although the solar panel basically does not generate electricity, it should work the same as when it is exposed to the sun.
Note: (1) Even if it is damaged, there is still a risk of electric shock, do not touch it; (2) To deal with damaged battery boards, contact the sales constructor to take corresponding countermeasures.
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