Copper bonded earth rods probably offer to the installer the best and
most economical earth rods . They are made by molecularly
bonding pure electrolytic copper on to a low carbon steel core.
They are highly resistant to corrosion, and because the steel used has a very high tensile strength,
they can be driven by power hammers to great depths.
The counter-bored couplings are made from high copper content alloy,
This again ensures excellent corrosion resistance and high strength.
Copper thickness minimum 250 microns.
Earth rods to BS EN 50164-2, BS 7430