How is LED street light power supply protected against lightning strikes? LED street light is a kind of traffic lighting products used on outdoor roads. The LED street light power supply that supplies power to it generally also needs to meet the requirements for outdoor use. The lightning strike is the most important issue. The following Zhongfu Optoelectronics will mainly explain the lightning strike method of LED streetlight power supply for the risk of lightning strike:

1. External lightning protection combined with internal lightning protection

Nowadays, the general LED street lamp power supply is made of conductor material, which is equivalent to a lightning rod. It is necessary to install the down conductor and the ground net. These systems constitute an external lightning protection system. The system can avoid fire and personal safety accidents caused by direct lightning strikes on LED street lights. The internal lightning protection system means that the interior of the street lamp is protected by grounding and voltage protection. The system can prevent inductive lightning and other forms of overvoltage intrusion, resulting in the destruction of the LED street light power supply, which is not guaranteed by the external lightning protection system. 

2. Install lightning protection module and overvoltage protection module

The role of the lightning arrester is to connect the protected system to the equipotential system in the shortest time (nanoseconds), so that the ports of the device are equipotential. At the same time, the huge pulse energy generated by the lightning strike in the circuit is released to the earth through the short-circuit line, and the potential difference between the interfaces of the device is reduced, thereby protecting the device. So we can install a lightning protection device in the LED street light power supply. 

3. Set lightning protection zone

At present, in addition to LED street light power supply equipment, LED street lights will also be equipped with some communic