The difference between the lightning protection of the solar street light and the ordinary street light is that the response speed of the LED solar street light is faster than that of the ordinary street light, and the voltage withstand capability of the LED solar street light is lower than that of the ordinary one.
The SPD is designed according to the voltage of the electric source, for in the thunderstorm days, a peak voltage or peak current, which is caused by electrostatic induction or electromagnetic induction, will go through the circuit of the LED solar street light, which may influence the work of the solar street light.
It is quite important to carry out lightning protection for the LED solar street light installed in the open or mountainous areas, where lightning happens frequently. And what should be taken into consideration?
Earthing of the LED solar street light, which is the most important aspect. The lamppost can be used as the drainage object, and the earth mat can be determined according to soil, and the earthing resistance should be lower than 10Ω. So the appropriate SPD special for LED should be chosen to carry out protection toward the circuit to avoid damage of the LED solar street light in the same district caused by lighting.
The circuit: the professional photovoltaic DC SPD should be installed.
Protection toward the direct lightning flash: the lamppost can be used as the air-terminal system.
The thunderstorm happens frequently, the LED solar street light manufacturers should be pay more attention on how to improve the lightning protection of their products.
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