This earth rod is used for the power networks earth system. The thread on both ends makes the earth rod lengthening possible. The copper coating made by electrolytic process gives a resistance to corrosion as well as a good conductivity. The reference standards are EN 50 164-2 and EN 62 561-2. This brass clamp with stainless steel bolts is designed to establish a connection between the earth rod and the conductor. The cable can be fixed radially or axially through the "U" bolt clamp. The brass driving spikes and heads are designed to protect the earth rod during the installation. They enable to preserve the copper coating and its technical features. The brass threaded couplings enable to join two rods and get a deeper earth system.