The problems that LED display should pay attention to in thunderstorm high-prone areas
In summer, thunderstorms in summer and bad weather also test the LED display. The electronic components in the LED display are highly integrated, and their sensitivity to interference is getting higher and higher. Thunder and lightning can harm the display in various ways. , If hit, the lightning current will cause mechanical, electrical, and thermal damage to the place where the lightning current passes, which will cause serious damage to the LED display. It can even cause a fire. Therefore, the lightning protection of the LED display is essential.
Lightning protection measures for LED display screens:
- For the protection of direct lightning strikes, install lightning rods on the support structure of the LED display (outdoor), indoor LED displays or LED displays with tall buildings next to them, you do not need to consider installing lightning rods.
- For the counterattack of the steel structure, connect the rigid structure to the shell of the LED display, make equipotential and ground it, the grounding resistance is generally required to be less than 10 ohms, if the resistance does not meet the requirements, additional The artificial grounding grid. The lightning arrester should also be well grounded.
- For the lightning current induced on the signal line, install a signal lightning protection device on the signal line. The signal arrester is determined according to the signal interface of the system. If it is a network cable, install a network signal lightning arrester, and install a DB9 interface lightning arrester for the serial interface. The cross-sectional area of
the ground wire cannot be less than 1.5mm square.
As for how to use LED displays reasonably under harsh conditions, the editor gives you the following suggestions:
First of all, check the firmness of the joints regularly. If there is any looseness, pay attention to timely adjustments, re-reinforcement or re-lifting.
Secondly, when installing the LED display, 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 errors in the zero and live wire transfer. If there are frequent power failures, please check the power supply carefully.
I would like to remind you all businesses that during periods of high thunderstorms, please use LED displays reasonably.