Patent ID: 7732707

Claim:
A ground rod and connection sleeve filled with an electric conduction compound comprising: an overhead earth wire that is installed to protect a transformer and power-transmission lines from lightning; a lead terminal made of steel and having a nut hole in one end and having a member for receiving a lead wire at the opposite end; a basic part made of steel and terminating at a conical tip for penetrating into the ground, and a thread rod at an end of the basic part opposite of the conical tip; a connecting rod made of steel and having a nut hole at one end of the connecting rod and corresponding to the thread rod of the basic part for connecting the connecting rod and basic part and a thread rod at the opposite end for connecting the connecting rod and lead terminal; a connecting sleeve for connecting the ground rod to the ground wire at the lead wire; and an electric conductive compound for preventing corrosion provided in the junctions of the nut holes and thread rods and in the connecting sleeve.