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Lightning protection method of street lamp
Publish:Greenway (Shenzhen) Electronics Co., Ltd    Time:2022-07-04
Summer is a season of frequent thunderstorms, for outdoor street lamps, it is very necessary to set lightning protection, because its height is the most vulnerable to lightning attacks, street lighting lightning mainly has the following four types : switching overvoltage, induction lightning, conduction lightning, direct lightning 
 
How should we prevent street lamp lightning accident ? Greenway Street Lamp Surge Lightning Protection Tips Take You - Look at the latest scientific proof of several street lighting lightning protection measures :
Lightning Protection Method for Street Lamps I : Lightning Protection Equipotential Connection In order to completely eliminate the devastating potential difference caused by lightning, outdoor street lamps should use overvoltage protectors to connect the power supply lines, signal lines and metal pipelines. Local equipotential connection should also be carried out at the interface of each inner protection zone of street lamp power supply. Each local equipotential connection should be connected to each other, and finally should be connected to the main equipotential. Lightning Protection Method II : Combination of External Lightning Protection and Internal Lightning Protection Street lamps generally have two systems, one is the external lightning protection system and the other is the internal lightning protection system, which are complementary and complementary to each other. The internal lightning protection system in many devices : such as the shell, the cable in and out of the protected area, metal pipelines and so on are connected to the external lightning protection system or the overvoltage protector, and equipotential connection. The general LED street lamp exterior is conductor material, itself is equivalent to a lightning rod, so the street lamp power supply is designed. On and off the line and the ground network, these systems constitute external lightning protection systems. Such system can avoid fire and personal safety accidents caused by direct lightning strike of LED street lamps.The internal lightning protection system of street lamp is to protect the equipment by grounding and setting voltage protection. Internal system can prevent induction lightning and other forms of overvoltage intrusion, causing power damage, which is external lightning protection system can not guarantee.
 
Lightning Protection Method III : High Quality Protection Equipment - Lightning Protection Module and Overvoltage Protection Module 
 
The function of street lamp lightning arrester is to connect the protected system into the equipotential system in the shortest time ( nanosecond level ), so that each port of the equipment is equipotential. At the same time, the huge pulse energy generated by lightning in the circuit is released to the earth through a short circuit, reducing the potential difference of each interface end of the equipment, so as to protect the equipment. 
 
Lightning Protection Method for Street Lamps Four : Setting Lightning Protection Area 
 
In addition to the power lightning protection system equipment, many LED street lamps will also set − some communication equipment to control the switch and brightness of street lamps. These equipment and power supply need to be placed in the lightning protection area, and the protection area is directly shielded by the shell, because the electromagnetic field in these areas is much weaker. 
 
The above several street lamp lightning protection scheme is proved by expert practice, at the same time through the scientific design and strict inspection, it is proved that not only can ensure the LED street lamp system is not damaged by lightning, but also can eliminate the common mode and differential mode interference of lightning on street lamp power supply equipment.
The outdoor street lamps and LED street lamps are generally at the height of 6 meters or above, and are installed in the pedestrian lane. Once attacked by electric lightning, it will pose a great threat to people ’ s life and property safety. Therefore, in the design of LED street lamps, the design of lightning protection system is a very important step ! In the production and design of LED street lamps and street lamps, the lighting protection system of street lamp power supply is strictly tested for a long time before it is applied to the finished lamps and lanterns, so as to ensure the safety and life of street lamps. The outdoor street lamps and LED street lamps are generally at the height of 6 meters or above, and are installed in the pedestrian lane. Once attacked by electric lightning, it will pose a great threat to people ’ s life and property safety. Therefore, in the design of LED street lamps, the design of lightning protection system is a very important step ! In the production and design of LED street lamps and street lamps, the lighting protection system of street lamp power supply is strictly tested for a long time before it is applied to the finished lamps and lanterns, and the safety and life of street lamps are consistent as far as possible.