How do solar street lights prevent lightning strikes?
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How do solar street lights prevent lightning strikes?

Views:0     Author:Site Editor     Publish Time: 2019-10-25      Origin:Site

 Solar street lights must be designed with down conductors and ground grids. These systems form an external lightning protection system. It can avoid the fire and personal safety accident caused by direct lightning strike of LED street light, and protect the equipment by setting voltage protection. This system can prevent inductive lightning and other forms of overvoltage intrusion, resulting in power supply destruction. This is not guaranteed by external lightning protection system. The two are complementary and complement each other.


1: Lightning protection grounding: In order to prevent lightning strikes on electrical equipment, grounding lightning arresters such as lightning rods, lightning protection lines and lightning arresters should be grounded. The grounding resistance should be less than 10Ω.


2: The problem of the street lamp circuit: install a dedicated photovoltaic DC lightning arrester. The lightning arrester is mainly designed according to the power supply voltage. In the lightning rain, the LED solar street light circuit will generate a spurt voltage or a spurt 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 casing and metal frame of the electrical equipment to the neutral ground wire. The ground wire should be insulated wire and use the whole wire. There is no joint in the middle.


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


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