The climate in most cities is hot in summer. Every year from June to early September, when most cities in China enter the high temperature season, the outdoor LED large screen uses a large area, the relative energy consumption is also large, the heating is more obvious, and the high temperature in summer can easily lead to the problem of heat dissipation of the large LED screen. . In order to deal with the heat dissipation problem of the outdoor LED large screen, it is necessary to adjust the design and structure of the external display screen. In the installation stage, the micro-distance ventilation design is adopted, the circuit board is designed with high density, and the fan is not added as much as possible, and the circuit integration is reduced. or fan cooling. In order to prevent open flames, the LED large screen wire should be made of flame-retardant materials to prevent wire aging and short-circuit fire. How to do safety protection for outdoor LED large screen?

  Summer is accompanied by hot weather, thunderstorms and long rainy seasons. Typhoons have a great impact on coastal cities. Large areas of precipitation have put forward higher protection requirements for LED screens to prevent rain, thunder and wind.

  1. Outdoor led large screen is wind-resistant and shock-resistant

   With the increasing application of outdoor LED large-screen advertising, the installation forms of LED large-screens are becoming more and more diverse, including wall-mounted installation, inlaid installation, hoisting, roof installation, column installation and other forms. In order to use LED large screen equipment not to fall, there are strict requirements for the selection of load-bearing steel structure steel for wind load and seismic performance, especially the requirements for roof installation and column installation are stricter than other forms

  2. Lightning protection measures for outdoor led large screen

   In order to ensure good grounding, all metal boxes and back covers of LED large screen equipment have separate grounding terminals, the terminal connection position is waterproof fasteners, and ratchet pads are used to ensure reliable grounding. The large screen equipment adopts a common ground wire structure, which is a method of "three grounds" (equipment working grounding, power supply grounding, and lightning protection grounding), which protects the power supply and signal system from lightning strikes and surge voltage damage to the equipment.

  3. Anti-leakage inside and outside the outdoor led screen

   The mask and cabinet are made of insulating material. The resistance of the insulating material is greater than 10 megohms, and the leakage current is less than 1.8MA. Tested by this department, the product can still withstand 50hz under boom conditions. The dielectric strength requirement is 1500W test voltage breakdown for 1 minute. The circuit board will be protected by three-proof paint, and the quality of the large led screen should be higher than the IP65 waterproof level in the international protection system. In this way, leakage is guaranteed from the material to the waterproof performance

  4. Control the humidity inside the outdoor large screen

  When the full-color screen with humidity is powered on, it will cause the parts of the large LED screen to corrode and cause damage; so keep it in the environment of the full-color LED screen, and do not let anything with humidity characteristics enter your large LED screen .

  5. Active protection of outdoor led large screen

   Avoid possible problems, take the initiative to protect, and try to remove the large-screen LED screen from the screen; and when cleaning the screen, wipe it as lightly as possible to reduce the possibility of causing damage to the LED display.