1. Erecting lightning rod: The most basic and effective measure for lightning protection of transmission lines is to erect lightning rod to prevent lightning from directly hitting the conductor, and at the same time, it can shunt the lightning current flowing through the tower and reduce the voltage of line insulators; It can also reduce the induced overvoltage on the conductor.

2. Installation of lightning arrester: lightning rod can not completely eliminate the impact caused by lightning. Installing lightning arrester can discharge lightning current to the earth, limit overvoltage and ensure the safety of transmission lines and equipment.

Third, reduce the grounding resistance of the tower: reducing the grounding resistance of the tower can make the potential rise slightly when lightning strikes the tower to a certain extent. This work is carried out at the same time as the erection of lightning protection lines. If the grounding resistance of grounding grid is too large, the measures we take are to increase the model of grounding grid or increase the radiation line of grounding grid.

More introduction:

Different places will also use different high-voltage lines, and the safety distance of different high-voltage lines is also different.

For example, the safe distance from 35 kV to 1 10 kV will be about 8 meters.

The safe distance from 154 kV to 220 kV will be around10m.

So if you see such a high-voltage line in your daily life, you must stay away, and remember not to be curious and observe it nearby to avoid danger.