Precautions for the Use of Outdoor LED Display in Thunderstorm High-incidence Areas

Ⅰ. lightning protection plays an important role in outdoor LED display

Bad weather is also a test for outdoor LED displays. The electronic components in LED displays are highly integrated with their sensitivity to interference getting higher and higher. However, lightning can do harm to the display in different ways. For example, the LED display might be struck and the lightning will cause mechanical, electrical, and thermal damage where the currents pass through, and then the LED display will be seriously damaged. It may even cause a fire. Therefore, lightning protection for outdoor LED displays is essential.

Ⅱ. Lightning protection measures for LED display

1. Protection from direct lightning strikes can be realized by installing lightning rods on the braced structure of the outdoor LED display.  For the indoor full color LED display with tall buildings next to it, the lightning rods installation is not needed.

2. As to the counterattack of the steel structure, you can connect the steel structure to the enclosure of the LED display equipotential and well-grounded. The grounding resistance is generally required to be less than 10 ohms. If the resistance does not meet the requirements, an additional artificial grounding grid is then required. The lightning arrester should also be well-grounded.

3. To manage the lightning current induced on the signal line,  you can install a signal lightning protection device on the signal line. The use of a signal lightning arrester is determined by the signal interface of the system. If it is a network cable, please install a network signal lightning protection device, and install a DB9 interface lightning protection device for the serial interface. The cross-sectional area of the ground wire cannot be less than 1.5mm².

Regarding how to use LED display reasonably under harsh conditions, Leyard as one of the most reliable outdoor LED screen manufacturers wants to give you the following suggestions:

First of all, please regularly check that if the joints are firm enough. If any looseness is detected, please make a timely adjustment, re-reinforce, or re-hoisting.

Secondly, when installing an outdoor LED display, please avoid looking directly at the ultraviolet rays and avoid direct sunlight for a long time.

Finally, the grounded socket must be installed correctly to avoid the wrong connection of neutral wire and live wire. If power failures happen frequently, please take a close check over the power supply.