Underground Environments Can Cause Oxidation Or Damage To The Surface Of Copper-clad Grounding Rods.

The outer copper layer of copper bonded earthing rod reacts with oxygen and moisture in the air to gradually form oxides. This natural oxidation process is more pronounced in humid or highly corrosive soil conditions. When oxygen in the air combines with moisture, it produces copper oxide and other copper compounds, thereby altering the surface state of copper copper bonded ground rods. This change is particularly noticeable in coastal areas with high humidity.

During the installation process, changes in the chemical composition, humidity, and temperature of the soil are also important factors affecting the surface condition of earthing rod copper. Prolonged exposure to such environments can cause copper layers to change color or even form a greenish-brown passivation layer, reflecting the continuous reaction between copper and the surrounding medium.