Thunderstorm weather often brings hidden dangers of lightning strikes to the steel structure of LED electronic display screens, so what should be done for lightning protection measures? The following Shenzhen LED display editor will share with you, I hope it will be helpful to you.
1. For the protection of direct lightning strikes, install lightning rods on the support structure of the LED electronic display (outdoor), indoor display screens or LED displays with tall buildings next to them, do not need to consider installing lightning rods.
2. In response to the counterattack of the steel structure, connect the steel structure to the shell of the electronic display screen, do the equipotentiality, and do the grounding. The grounding resistance is usually 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 grounded.
3. For the lightning current induced on the power line, install a single-phase or three-phase power lightning protection device on the power line. The link cross-sectional area of the phase wire should not be less than 10mm square, and the cross-sectional area of the ground wire should 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 arrester depends on the signal interface of the system. If it is a network cable, install the network signal arrester, and install the db9 interface arrester for the serial interface.
