Transcription of A practical guide to earth resistance testing - …
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A practical guide to earth resistance testing - …
practical guide to earth resistance testingThe word Megger is a registered trademark Getting Down to earth 1 IntroductionNothing is quite so common or abundantly available throughout the world as the earth s soil . We are more apt to think of earth as something to be tilled for planting or to be excavated for a building foundation. Yet, it also has an electrical property -- conductivity (or low resistance ) -- that is put to practical use every day in industrial plants and speaking, earth resistance is the resistance of soil to the passage of electric current. Actually, the earth is a relatively poor conductor of electricity compared to normal conductors like copper wire.
8 1-866-254-0962 www.megger.com Getting Down to Earth 9 Type of Soil Affects Resistivity Whether a soil is largely clay or very sandy, for example, can change the
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