5ft earth rod+clamb copper

is a long metal rod typically made of copper or galvanized steel. It’s used in electrical systems to establish a connection between the electrical system

A 5-foot earth rod is relatively common and suitable for many residential and commercial applications. The length of the rod is important because it needs to penetrate deep enough into the soil to establish a reliable electrical connection with the earth. In areas with dry or rocky soil, longer earth rods may be necessary to ensure effective grounding.