1. For protection against direct lightning strikes, install lightning rods on the supporting structure of the LED display (outdoor). For indoor LED displays or LED displays with tall buildings next to them, there is no need to consider installing lightning rods.
2. In response to the counterattack of the steel structure, connect the rigid structure to the shell of the ED display, make equal potentials, and conduct grounding. The grounding resistance is generally required to be less than 10 ohms. If the resistance does not meet the requirements, it must be Additional artificial grounding grid. The lightning protector must also be well grounded.
3. In view of the lightning current induced on the power line, install a single-phase or three-phase power lightning arrester on the power line. The cross-sectional area of the phase line linking wire cannot be less than 10mm square, and the cross-sectional area of the ground wire cannot be less than 16mm square.
4. In view of the lightning current induced on the signal line, install a signal lightning arrester on the signal line. The signal lightning arrester depends on the signal interface of the system. If it is a network cable, install a network signal lightning arrester. For a serial interface, install a DB9 interface lightning arrester, etc. The cross-sectional area of the ground wire must not be less than 1.5mm square.