In summer, thunderstorms and bad weather are also a test for 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, such as being When hit, the lightning current will cause mechanical, electrical, and thermal damage to the place where the lightning current passes, thereby causing serious damage to the LED display. It may even cause a fire. Therefore, the lightning protection of the LED display is essential. The following editor has compiled the lightning protection measures for LED displays for your reference.
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1. For the protection of direct lightning strikes, install lightning rods on the supporting structure of the outdoor LED display.
2. For the protection of the steel structure, connect the structure to the shell of the LED display, make the 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 Artificial grounding grid. The lightning arrester should also be well grounded.
3. For the lightning current induced on the power line, install a single-phase or three-phase power surge protector on the power line. The cross-sectional area of the link wire of the phase wire cannot be less than 10mm square, and the cross-sectional area of the ground wire can not be less than 16mm square.
4. For the lightning current induced on the signal line, install a signal lightning protection device on the signal line. The signal lightning arrester is determined according to the signal interface of the system. If it is a network cable, 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 1.5mm square.
Recommendations for using LED displays under harsh conditions
1. Regularly check the firmness of the joints, if there is any looseness, pay attention to timely adjustment, re-reinforce or re-lift.
2. According to the environment of the LED display, avoid insect bites and place rodenticide if necessary.
3. When installing an outdoor LED display, avoid looking directly at the ultraviolet rays and avoid direct sunlight for a long time.
4. 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.
The above is about how to do a good job of lightning protection for outdoor LED displays in summer. Regular inspection and maintenance of LEDs are also necessary. The editor reminds everyone that during the summer thunder and lightning, please use LED displays reasonably to avoid screen problems affecting normal The most important thing is to prevent fires from happening.
