Copper Bonded Earthing Rods
have the capabilities to be deep driven into the soil. This is helpful in difficult terrains and rocky terrains where the normal resistivity of the soil is high and it becomes difficult to achieve lower resistances.
As per IS 3043: 1987, one can achieve lower resistivity at depths at greater depths. Often these levels are some meters below the surface. The most economical way of reaching them is by Deep Driven Earth Rod Electrodes. When deep driving is not possible mainly due to rocks, underneath, parallel driven shorter rods, plates, mates or buried conductors or a combination of three can be used.
Earth Rod Electrodes:
Earth rods are commonly made from solid copper or stainless steel with copper bonding. Copper Bonded Earthing Rods or Copper Bonded Grounding Rods are commonly used due to strength, corrosion resistance and comparatively low cost.
Copper Bonded Earth Rod System: This system includes rod along with accessories.
Driving Stud: These are made from steel & suitable for use with Power Hammers Coupling: These are made from copper alloy & counter bored to enclose threads. Coupling is high strength & also highly corrosion resistant. These are used to connect driving stud to rod or rod to rod Rod: Steel rod with core of low carbon provides tensile strength at least of 600 N/ mm2. These rods are molecularly bonded with 99.9 % pure electrolytic copper up to thickness of 0.25 mm, Rolled threads at each end gives strength than cut threads Clamp: These are made from high copper content alloy strong resistance to corrosion
Features of ideal earthing:
Low electrical resistance to earth
Resistance to corrosion
Ability to carry high currents repeatedly
Less Maintenance & reasonable lifespan
