A copper bonded earthing rod is a grounding solution specifically engineered to offer a reliable, low-resistance path for electrical currents to flow into the earth, safeguarding people and equipment against electrical faults and lightning strikes. In contrast to a solid copper rod, comprised entirely of copper, a copper bonded earthing rod has a high-tensile, low-carbon steel core mo... https://www.pioneerpowers.com/copper-bonded-earth-rod.php