Soil resistivity testing is the process of measuring a volume of soil to determine the conductivity of the soil. The resulting soil resistivity is expressed in ohm-meter or ohm-centimeter.
Soil resistivity testing is the single most critical factor in electrical grounding design. this is true when discussing simple electrical design, to dedicated low-resistance grounding system, or to the far more complex issues involved in ground potential rise studies. Good soil models are the basis of all grounding designs and they are developed from accurate soil resistivity testing.
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