What is the 4-Point Soil Resistivity Test? (Part 1)

In this episode, E&S Grounding Solutions President David Stockin discusses the Wenner four-point method for testing soil resistivity. Selecting proper spacing of the four test probes must be considered when measuring the resistivity at various depths into the earth. It is important to investigate how the measurements may differ between seasons and weather conditions. The results of a soil resistivity test employing the Wenner method are an essential part of the soil model used when studyi...