A clamp-on ground resistance tester actions the magnetic subject made by The present flowing through the grounding process.Testing while in the vicinity of the location in query is clearly essential; nonetheless, It's not necessarily normally practical. Lots of electrical utility companies have policies concerning how shut the soil resistivity exam

5, with one.33 preferred.  You would also will need to keep getting readings and expanding your spacings at Those people intervals right up until your spacings are at least as fantastic given that the depth you are attempting to study, if possible two or thrice as fantastic.  This will surely signify several dozens of measurements and a lot of op