Soil Thermal Resistivity Measured Simply and Accurately

There is a growing need for each utility to gain a thorough knowledge of the soil thermal resistivity throughout its system. The volume of heavily loaded multiduct runs of power cables promises to increase rapidly in the years ahead. We can no longer afford to plan for cable loadings based purely on an assumed soil thermal resistivity. Rather, we must compile information that accurately describes the thermal resistivity of soils commonly found within specific geographic areas; then very realistic values of soil thermal resistivity can be used in the planning of new underground systems in these areas.