Calculation of Soil Resistivity When Resistance of One Rod is Known

To obtain a measurement representative of the soil in the vicinity of the rod and down to a useful depth, the rod should be driven to a depth of at least 0.5 metres, preferably 1 metre. It should be spaced away from any other buried conductors by at least five times its own depth in the soil.

Its resistance to earth may have been obtained from the Three-Rods-Test, as described elsewhere in this program, or it may have been obtained directly by measuring it against another earth electrode of known resistance or which has been assumed to have zero resistance to the body of the earth.

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This program is self-contained and ready to use. It does not require installation. Click this link EarthRes then click Open to run from the web or Save to save the program to your hard drive. If you save it to your hard drive, double-click the file name from Windows Explorer (Right-click Start then left-click Explore to start Windows Explorer) and it will run.

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