Click Personal Profile after login to opt out. I inquiry on a situtation that I am analyzing for 15kv power cable placed in a trench system. Where does one find more information on soil thermal resistivity and what company's are able to provide such a specific soil.
Sand is a very poor conductor.
Wet sand has a lower value of Rho but there will always be times when the sand is not wet. Better to design around the rho you will see when the sand is dry. Our normal design methodology is based on a study of thermal resistivities in our service region. We assume that most native soil has a rho within the range specified for that soil type. The name by which you'll be known in the forums.