Installation of copper Earth mat in under ground Metro Staions

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Call Us @ 9711681771 for earthing work Abstract of IEEE-80/ IS 3043 / BS 7430 for earthing The installation process of earth mats in under ground metro stations includes square grids of copper rods and parallel connected copper electrodes. Factors affecting the design of the earth mat Soil resistivity – The size and no of electrodes required in an earth mat system strictly depends upon the soil resistivity value. Soil resistivity varies from 12-300 ohms normally and for larger values we must use satellite earth mat systems. Step touch voltages – The size of one grid depends on the allowable […]