I. Background

With the rapid development of science and technology, outdoor LED full-color displays are widely used in various occasions, such as plazas, shopping malls, stations and so on. However, due to the special outdoor environment, the display faces many challenges, among which lightning strike is an important issue. Lightning strike may not only lead to equipment damage, but also cause safety hazards. Therefore, the lightning strike prevention measures for outdoor LED full-color display is particularly important.

Second, the impact of lightning strikes on outdoor LED full color display screen

Lightning will produce huge transient voltage and surge, these surges may enter the display through the power line, signal line and other paths, resulting in equipment damage, data loss or even cause a fire.

Third, outdoor LED full-color display lightning protection measures

1. install lightning facilities: install lightning rods, lightning nets and other lightning facilities around the display, the lightning into the ground, to avoid directly hitting the display.
2. grounding protection: ensure that the grounding resistance of the display is less than 4 ohms, the charge generated by lightning into the ground, reducing the risk of equipment damage.
3. power supply lightning protection: install a power supply lightning protector at the power inlet to prevent lightning waves from intruding.
4. signal line protection: the signal line should also be protected against lightning, can be used signal lightning arrester or increase the shielding layer to reduce the impact of lightning electromagnetic pulse on the signal line.
5. Regular inspection and maintenance: Regularly inspect and maintain the lightning protection facilities of the display to ensure its good performance.
6. Selection of high-quality materials: when purchasing the display and its accessories, you should choose high-quality products with lightning protection function.
7. Strengthen personnel management: train operators to understand the knowledge of lightning protection and avoid outdoor operation in thunderstorms.

Precautions

1. When carrying out lightning protection measures, professional personnel should be asked to operate to ensure safety.
2. Regularly carry out lightning protection test on the display to ensure that it has good lightning protection performance.
3. In thunderstorms, avoid outdoor LED full-color display as much as possible.