The Protective Effect Of Surge Arresters Is Closely Related To The Grounding System.

400 kv lightning arrester requires high grounding standards. If the grounding system is not perfect, the lightning current cannot be effectively conducted into the ground. Even if a high-quality 66 kv lightning arrester is installed, its protective effect will be greatly reduced. This is because the conduction path of the lightning current must pass through the grounding system. If the grounding resistance is too high or the grounding grid is not laid out properly, it will affect the working efficiency of 66kv surge arrester. Therefore, grounding design and construction are a crucial part of the system.