Thunderstorms are frequent in summer. For outdoor solar street lights, lightning protection measures for solar street lights should be taken to prevent damage caused by lightning strikes. At present, the outside of general solar street lamps are conductor materials, which is equivalent to a lightning rod itself. In the design, the down conductor and the ground network must be installed. These systems constitute an external lightning protection system. The system can avoid fire and personal safety accidents caused by direct lightning strikes of LED street lamps.
The lightning protection of solar street lights is different from ordinary street lights. The main reason is that the response speed of solar street lights is much faster than ordinary street lights, and the ability to withstand voltage will naturally be smaller than ordinary street lights. Lightning protection methods are particularly important in open areas, high mountain areas, and thunderstorms occur frequently. The lightning protection design of solar street lamps can be taken from four aspects.
1. Protective grounding: In order to prevent the safety of people and equipment when the equipment leaks, all exposed conductive parts of the electrical equipment are grounded through the grounding wire, and the grounding resistance should meet the installation requirements of the leakage protector.
2. Working grounding: Directly ground the neutral point of the low-voltage power grid, and the system grounding resistance should be less than 10Ω. 3. Lightning protection and grounding: In order to prevent electrical equipment from being struck by lightning, Jiangmen rural Solar Street Light manufacturer Langjin Lighting shall ground lightning protection devices such as lightning rod, lightning cable and lightning arrester, and the grounding resistance shall be less than 10Ω.
4. Zero connection: Connect the metal shell and metal frame of the electrical equipment to the neutral ground. The ground wire should be insulated wire, and the whole wire should be used, with no joints in between. The grounding wire of the arrester should be the shortest distance to the grounding wire.
