Perlite carbon grounding module

A perlite carbon grounding module capable of improving wave impedance characteristics of an accident current is provided to transfer a surge voltage such as lightning stroke rapidly and discharge the surge voltage at the same time. A core bar(11) is conductive metal material. The first grounding body(13) has the core bar. The first grounding body is formed of low resistance component. The second grounding body(15) is integrally formed on the outside of the first grounding body. A resistance value of the second grounding body is larger than a resistance value of the first grounding body. The second grounding body includes perlite.