Engineering Adaptation For Copper-clad Grounding Rod Selection

Different geological conditions place different demands on the performance of copper rod for earthing price. In acidic soils or coastal areas with high salinity, the copper layer thickness needs to be at least 0.5 mm to resist electrochemical corrosion. The diameter of the 1 2 in x 8 ft copper ground rod steel core is directly related to the soil resistivity. When the soil resistivity exceeds 500 ohm-meters, it is necessary to select a specification with a diameter of more than 20 mm to increase the contact area. When constructing in rock layers or permafrost areas, the tensile strength of the steel core must meet the driving depth requirements; ordinary Q235 material may not be able to penetrate hard strata.

Substations and communication base stations have specific technical standards for grounding resistance values. The length of 10 foot copper ground rod directly affects the current dissipation effect. A single 3-meter-long 5 8 by 8 copper clad ground rods has a grounding resistance of about 25 ohms in 100 ohm-meter soil. To achieve a resistance of less than 10 ohms, multiple wires need to be connected in parallel or the length of a single wire needs to be increased to 6 meters. Lightning protection systems require grounding devices to have impulse grounding resistance characteristics, and the purity and bonding strength of the 5 8 in x 10 ft copper ground rod copper layer determine the high-frequency current discharge capability.