TANK-TYPE LIGHTNING ARRESTER

摘要

Summary Problem For a tank-type lighting arrester having varistors in a layered manner, it is an object to provide a lightning arrester having a shield in a simple shape, and in such a shape that achieves more uniform voltage distribution among the varistors than that in conventional techniques. Means to solve the problem In a lightning arrester according to the present invention, layered varistors are provided in a tank in which an insulating medium is filled, and a cylindrical shield is arranged therearound. To solve the above problems, in the lightning arrester according to the present invention, a plurality of holes are arranged on a side surface of the shield.