The copper bonded rod belongs to thesingle-piece form of the copper-steel composite. The copper layer is made ofcopper with a purity of 99.9%, and the steel core is a high-quality carbonstructural steel, which forms a composite metal material with high bonding force.It is mainly used for the vertical grounding electrode in the grounding system.It is used to assist the horizontal grounding material to release the faultcurrent to the ground. It is used to reduce the grounding resistance value,reduce the potential difference in the grounding grid, and improve the safetyof the grounding system.