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What are the various methods for effecive earthing in a
factory in a rocky terrain, where soil resistivity is
extraordinarily high? The usual method of 3 m deep earth
pits is not serving the purpose.
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Answer Posted / blake australia
There are some powders which harden (i.e. erico make some I
think). Generally would drill a fairly deep hole. insert
earthing rod and surround with these earthing enhancers.
Try to avoid gell or powder forms of earth enhancer as they
tend to wash away when it rains
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