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This Earthing Coal is used in earthing systems. For earthing, the ground resistance should be minimum in order to allow immense current to dissipate rapidly. Since coal contains carbon which is a perfect conductor it serves the purpose. The mixture has to be watered on a regular basis in order to increase its conductivity. This mixture can be filled in the earth pit around earthing pipe or plate. The purpose of Earthing Coal is to keep wet the soil permanently.