source:other news release time:2023-02-23 Hits: Popular:led screen wholesaler
Usually outdoor LED display is installed with large area and mostly installed in places with dense personnel. The design of the steel structure should consider many factors such as the basic wind, waterproof, dustproof, moisture -proof, environmental temperature, lightning protection, surrounding population density and other factors. Essence At the same time, the LED display steel structure also needs to place auxiliary equipment such as power distribution cabinets, air conditioners, shaft fans, and lighting, as well as maintenance facilities such as horses and ladders. Therefore, when the implementation, the steel structure of the entire outdoor LED display should have the design drawings after passing the review of the government authority to ensure the reliable and safe and safe and safe of the entire steel structure.
Waterproof
Outdoor LED display is installed outdoors, often sun and rain, wind and dust cover, and harsh working environment. Electronic equipment is wet or severely treated with short circuit or even fire, causing failure or even fire, causing losses; therefore, screen body and LED The combination of the display screen body and the building must be strictly waterproof; the LED display screen body must have good drainage measures. Once the stagnant water occurs, it can be discharged smoothly; pay attention to waterproof and moisture -proof.
Ventilation
The outdoor LED display should be installed with ventilation equipment to cool down, so that the internal temperature of the screen body should be -10 ℃ ～ 40 ℃. Establishing axis flowers on the back of the screen will discharge heat; outdoor LED displays should produce a certain amount of heat when working. If the ambient temperature is too high and the heat dissipation is poor, the integrated circuit may work abnormally or even burned, so that the LED display is displayed. The system cannot work properly.
Lightning protection
In the outdoor LED display, electronic components have a high degree of integration, and their sensitivity requirements for confrontation are getting higher and higher. Lightning can harm the display system in various ways. Generally, it may directly hit the screen body and then leak into the ground through the grounding device. Destroyer, electricity, and heat damage are caused at the process of lightning current. The solution is an equal potential connection, the metal shell that is about to ground or not well grounded, the metal skin of the cable, the metal frame in the display screen is connected with the grounding device to prevent it from the light voltage or the lightning electricity on the ground device on these objects. The transmission of the ground high potential causes an overvoltage of the internal insulation and cable core wire of the device. The outdoor LED display will also be attacked by a strong and powerful magnetic attack caused by lightning. In order to make large current caused by lightning, large current can be leaked in time, reduces overvoltage on the device, and limits lightning invasion waves. Lightning protection devices should be installed on the display and buildings.
The grounding of the outdoor LED display should consider its grounding form according to the specific situation; when the display is set independently, a separate grounding system should be set. At the wall, the LED display body and the shell and the shell and the building are well grounded, and the ground resistance is comprehensive with the building. The ground resistance should not be greater than 1 ohm.
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