Why Is The Cross-sectional Area Of the Copper-clad Grounding Rod So Important?
A larger conductor cross-sectional area results in a lower current density per unit area, less resistance heat loss, and a lower temperature rise. This means that during ground current surges or lightning strikes, copper bonded conductors can carry larger currents without easily overheating or being damaged. According to industry standards for grounding conductor cross-sectional area, when a grounding line must withstand a large instantaneous or continuous current, a conductor with a sufficient cross-sectional area should be selected.
For copper bonded earth rod price conductors, the steel core provides mechanical strength, while the outer copper cladding provides excellent conductivity. If the cross-sectional area of a copper bonded earthing conductor is insufficient, the steel core's load-bearing capacity is still acceptable, but the overall conductivity will decrease due to the limited conductive cross-section of the copper layer, leading to insufficient ground current shunting capacity and affecting the overall grounding effect.
