A surge arrester is a device used in electrical networks to protect equipment against damage caused by sudden overvoltages such as lightning and lightning. Lightning arrester shows a very high resistance to the level of electrical insulation against normal voltages and shows little resistance against instantaneous voltages and discharges electric waves to the ground. Lightning arresters are more protective than other protective devices. They provide the best protection and provide the highest amount of transient wave removal. Surge arresters are placed in parallel with the device under protection or between phase and ground. The energy of the overvoltage wave is transferred to the ground by the arrester; And it provides more protection. Surge arresters are used to protect tall buildings from lightning strikes.
Sale of 20 KV network distribution equipment and high and low voltage cables in Alvand store in Laleh Zar, Tehran