For the application of lightning protection in the whole process of intelligent security engineering construction, the key must be the safety protection of the power system software, the protection of outdoor equipment, and the system software grounding device. , For the safety protection of the power system software in the security, three-level protection must be set. The first-level protection SPD is installed in the main power distribution cabinet of the power supply; the second-level lightning protection SPD is installed in the power distribution cabinet of the host room; the third-level protection SPD Installed at the power end of the equipment in the host room. Under normal circumstances, the first and second levels of the power system software have already been set up. If the third level protection is done in the whole process of construction, it is enough. According to the three-level protection of the power system software, it resists lightning current from entering the host room along the power cord to prevent the equipment from being struck by lightning.  

Secondly, outdoor equipment should do a good job in the safety protection of shock thunder and magnetic induction thunder. Generally, the lightning safety protection of outdoor surveillance cameras is often encountered in construction sites. A small lightning protection ground must be installed on the support frame, and lightning protection devices should be installed on the power supply, control line, and video route of the surveillance camera. Or use a three-in-one lightning protection device to protect the three data signals, and the ground wires of all kinds of lightning protection devices are connected to the ground below the network.