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copper bonded earth rod are made from low carbon steel of grade BS 970
or AISI 1018 with a high tensile strength of at least 600 N/mm2 . Low
carbon steel core are molecularly bonded with 99.9% pure electrolytic
copper to a thickness of 250 microns (0.25 mm).
Salient
Features :
*
Perfectly bonded rod will last longer, drive easier and will not crack.
* Corrosion resistance while providing the lowest resistance to ground.
* Threads are rolled by roll threading process, which ensures that an
even copper covering is maintained, even at the
root of the thread. Roll thread gives greater strength than cut thread.
* Thread rolling process raises the surface of the rod , so that thread
dia. (T) is
greater than shank dia. (S). As seen in figure :-
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