As discussed in the Soil Resistivity and Field Testing posting, People analyzing grounding techniques are mostly concerned with the soil resistivity ordinarily expressed in Ω-m. Soil resistivity measurements at various spots in the web site, or as shut as is possible, are needed because of the numerous variation of resistivity. https://voiceover-work-for-beginn78776.blogdal.com/32645067/indicators-on-soil-electrical-resistivity-bd-you-should-know