Electrical Resistivity Test

Resistivity tests are being made to evaluate the ground resistance offered to current flow, and the results are vital in designing the grounding system for Electrical Installations. The test is conducted using Wenner's four Electrode methods, with reference to ASTM G-57. By means of the tests, the potential difference between the outer and inner electrodes is measured for a specified current flow, for a specified spacing.

Results are presented in Ohm-meter that can also be correlated to find water table and other related parameters.