The outdoor D display industry has gradually entered the tight rhythm of booming production and sales, and more and more outdoor surface mount products have been widely used in airports, buildings, and outdoor advertising columns. As the summer high temperature mode is successively opened all over the country, the increasingly harsh outdoor environment also greatly tests the weather resistance of outdoor LED displays.
How to do a good job in summer lightning protection for outdoor LED displays
1. Protection against 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 don't need to consider installing lightning rods.
2. For the counterattack of the steel structure, connect the rigid structure to the housing of the LED display screen, 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 The 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.
5. For the induced current of lightning strikes, a unified and dedicated professional distribution box and cabinet can more comprehensively and effectively protect the entire circuit system from the interference of lightning induced currents.
