Ground rod copper bond are made by molecularly bonding pure electrolytic copper onto a low carbon high tensile steel cores with thickness exceeds 0.254 mm meet UL standard for safety for grounding and bonding equipment " KUMWELL"
Ground rod copper clad are made by solid steel core covered with nickel strike and uniform copper , last longer drive easier and will not crack
Ground rod solid copper / stainless steel are use in applications where soil conditions are aggressive pH value is below 3 or over 8
Graphite mould is made from high quality material and precision machine. Tag mould provides part number, conductor size and weld metal powder size. Exothermic welding is process in which an electrical connection is made by pouring superheated molten copper alloy on and around the conductors to be joined. The molten copper alloy contained and controlled within in a semi-permanant graphite mold causes the conductors to melt. When cooled the conductor are joined in a fusion weld. The superheated molten metal is created by a chemical reaction between aluminum and copper oxide.
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