Solar street lights must be designed with down conductors and ground nets, and these systems constitute an external lightning protection system. It can avoid the fire and personal safety accidents caused by the direct lightning of the street lamp, and the equipment is protected by voltage protection. This system can prevent the intrusion of induced lightning and other forms of overvoltage, causing the power supply to be destroyed. This is not guaranteed by the external lightning protection system. Yes, the two complement each other and complement each other.

1: Lightning protection grounding: In order to prevent electrical equipment from being struck by lightning, ground lightning rods, lightning conductors, and lightning arresters. The grounding resistance should be less than 10Ω.

2: The problem of the street lamp circuit: install a special photovoltaic DC lightning protection device. The lightning protection device is mainly designed according to the power supply voltage. In the thunderstorm weather, the circuit of the LED solar street light will generate a peak voltage or a peak current due to electrostatic induction or electromagnetic induction, which will affect the LED solar street light equipment. In severe cases, the solar street light will also Suffered from lightning damage.

3: Zero connection: Connect the metal shell, metal frame, etc. of the electrical equipment to the neutral ground wire. The ground wire should be an insulated wire and use a whole wire. No joints are allowed in the middle.

4: Protective grounding: In order to prevent the safety of people and equipment from being endangered when the equipment leaks, all exposed conductive parts of electrical equipment are grounded through the grounding wire, and the grounding resistance should meet the installation action requirements of the leakage protector.