Preventive measures for outdoor advertising display screen to deal with bad environment

    In recent years, outdoor advertising display screen has become the favorite of outdoor media advertising. However, during the use of outdoor advertising display screen, due to the influence of high temperature, typhoon, rainstorm, lightning and other bad weather, sometimes some faults may occur and interfere with daily use. This requires that preventive measures be taken for outdoor advertising display screen, as follows:

Preventive measures for outdoor advertising display to cope with harsh environment:

1、 High temperature protection

The outdoor advertising display screen usually has a large area, which consumes a large amount of power during the application process, and the corresponding heat is also large. In addition, the external temperature is high. If the heat dissipation problem cannot be solved in time, it is likely to cause problems such as heating and short circuit of the circuit board. In production, ensure that the circuit board of the display screen is in good condition, and try to select hollow design in the shell design to help heat dissipation. During installation, it is necessary to adhere to the good ventilation condition of the display screen according to the device conditions, and add heat dissipation equipment to the display screen when necessary, such as adding an air conditioner or a fan to help the display screen heat dissipation.

2、 Typhoon prevention

The outdoor advertising display screen is installed in different positions and in different ways, including wall mounted, inlaid, column type and hanging type. In the typhoon season, in order to prevent the screen body of outdoor advertising display screen from falling, there are strict requirements on the load-bearing steel frame structure of the display screen. The engineering unit must design and install in strict accordance with the standard of typhoon resistance level, and at the same time, it must have certain anti-seismic capacity to ensure that the outdoor advertising display screen will not fall and cause casualties and other hazards.

3、 Storm proof

There are many rainy days in the south, so the LED display itself must have a high waterproof protection level to avoid rain erosion. In the outdoor use environment, the outdoor advertising display screen shall reach IP65 protection level, the module shall be sealed with glue, the waterproof box shall be selected, and the module and the box shall be connected with waterproof rubber ring.

4、 Lightning protection

(1) Direct lightning protection: if the outdoor LED large screen is not within the direct lightning protection range of the nearby tall buildings, the lightning rod shall be set on or near the top of the display steel structure;

(2) Inductive lightning protection: the power supply system of outdoor advertising display screen shall be provided with level 1-2 power supply lightning protection, and the signal line shall be equipped with signal lightning arrester. Meanwhile, the power supply system of the machine room shall be provided with level 3 lightning protection, and the signal lightning arrester shall be installed at the equipment end of the signal entering / leaving the machine room;

(3) All LED display lines (power supply and signal) shall be shielded and buried;

(4) The front end of outdoor advertising display screen and the grounding system of the machine room shall meet the system requirements. Generally, the grounding resistance of the front end shall be less than or equal to 4 ohms, and the grounding resistance of the machine room shall be less than or equal to 1 ohm.

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