DC high-voltage short-circuit ground wire What?

First, over-voltage shelter grounding

Lightning arrestors and surge arresters are the most widely used lightning protection devices. Reinforce the grounding of high voltage grounding wire lightning arrester lightning rods, through the process tower or building materials earth through the public ground. Lightning arresters must be inspected every year before the onset of the thunder and drought season to prevent their entry into force. In the lightning prevention guide line, never adjoin the ground wire of the rest of the equipment. The lightning deflector can only be directly connected to the ground. Otherwise, the lightning will destroy the rest of the equipment through the downlead.

Second, the protective grounding line

Shelter grounding is a sheltered installation that is designed to prevent equipment damage caused by insulation damage and endanger the safety of the person. It has two methods: grounding and zero connection. According to the power demarcation, a three-phase four-wire power system is adopted. Since the neutral point is grounded, the method of zero connection should be adopted. The device of the metal shell is connected to the neutral wire through the wire instead of directly grounding the device housing. Especially in radio and television systems, switchgear in switchgear rooms, air conditioners in the middle, transmitter power switch devices and large power consumption and equipment.

Third, block the grounding wire

Protection against electromagnetic sensation on the skin, protection of audio lines, high-voltage grounding wires, metal barriers, metal housing electronics, block masks, metal barriers to building materials (eg measured liveness, choice and target blocking chamber) grounding . All the ground to the most complicated, unexplainable obstacles, unclear feelings. The obstacles are also resistant to external nuisances, which may be caused by nuisances formed by the process and prevent electromagnetic interference between devices within the various components.