Comprehensive lightning protection design points and lightning damage to the equipment usually the way
1: Understand the meteorological environmental conditions of the object to be protected and determine the geographic location of the object to be protected (knowing the main direction of the lightning strike at the place where the object is to be protected, the intensity of the thunderstorm activity, and the surrounding conditions of the protected object's location.
2: Understand the quality of the lightning protection devices of the buildings where the protected objects are located, and properly handle the relationship between the objects to be protected and the lightning protection devices in the building. Identify the location and wiring method of the object to be protected, which is mainly manifested in:
A: Lightning grid quality parameters, which determine the distance between the installation of equipment in the equipment room and the column of the building structure;
B: The quality parameter of the lightning deflector, which determines the safety distance between the installation location of the equipment in the equipment room and the lightning deflector;
C: The quality parameters of the pressure equalizing ring determine the defense capabilities of the contrails on the opposite side of the room and the electrostatic electromagnetic pulses caused by lightning.
D: The technical parameters of the basic grounding body determine the grounding principle of the equipment grounding system.
Lightning damage to equipment is the usual route
There are basically four ways:
One is directly damaged by direct lightning strikes;
The second is that the lightning electromagnetic pulse is damaged along the signal line and power line connected to the device and invade the device;
Thirdly, when the equipment grounding body is struck by lightning, it will be damaged by momentary high potential.
Fourth, the equipment installation method includes the layout of the circuit, the location of the installation is not standardized, and is damaged due to the influence of the electric field and magnetic field distributed in the space.
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