What role does the famous lightning arrester play

Famous lightning arresters play a very important role in protecting the safety of people's property. Under the condition of a famous lightning arrester, the lightning can be guided to the ground by the lightning arrester.
Because the charges will be distributed on the surface of the object, and the charges of the same kind repel each other. Therefore, if charges are distributed on a needle-shaped object, the charge density at the tip is greater. Therefore, it is easy to generate a discharge phenomenon at the tip, and at the same time, this device can be used to "lead electricity".
Zinc oxide surge arrester is a relatively advanced overvoltage protector in the world at present. Because its core component adopts oxidized zinc oxide resistors, compared with the traditional silicon carbide arrester, it improves the safety characteristics of the arrester and improves the overvoltage flow capacity, thus bringing about fundamental changes in the characteristics of the arrester. When the famous lightning arrester is under the normal working voltage, the current flowing through the famous lightning arrester is only in the microampere level. When it is subjected to overvoltage, due to the non-linearity of the oxide resistance, the current flowing through the famous lightning arrester reaches thousands of amperes instantaneously, and the arrester is in the conduction state. Release overvoltage energy, thereby effectively limiting the damage of overvoltage to power transmission and transformation equipment.