The present state of the technique of measuring ground resistance and impedance, earth resistivity, and potential gradients from currents in the earth, and the prediction of the magnitude of ground resistance and potential gradients from scale-model tests are described and discussed. Factors influencing the choice of instruments and the techniques for various types of measurements are covered. These include the purpose of the measurement, the accuracy required, the type of instruments available, possible sources of error, and the nature of the ground or grounding system under test. The intent is to assist the engineer or technician in obtaining and interpreting accurate, reliable data. The test procedures described promote the safety of personnel and property and prevent interference with the operation of neighboring facilities.
- Sponsor Committee
- PE/SUB - Substations Committee
Learn More About PE/SUB - Substations Committee - Status
- Superseded Standard
- Superseded by
- 81-2012
- Superseding
- 81-1962
- Board Approval
- 1981-09-17
- History
-
- ANSI Approved:
- 1984-09-04
- Published:
- 1983-03-11
Working Group Details
- Society
- IEEE Power and Energy Society
Learn More About IEEE Power and Energy Society - Sponsor Committee
- PE/SUB - Substations Committee
Learn More About PE/SUB - Substations Committee
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