Evaluation or Resistivity Tests for Design of Station Grounds in Nonunirorm Soil
- 1 December 1963
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Apparatus and Systems
- Vol. 82 (69) , 966-970
- https://doi.org/10.1109/tpas.1963.291480
Abstract
The actual soil formation at a prospective station site usually can be approximated by an assumed 2-layer stratification. The method of establishing characteristic parameters of such a formation by 4-electrode tests is reviewed. As the main result of this study, curves are presented to determine, from these parameters, the apparent resistivity values to he used in computing the resistance of a grounding grid in a 2-layer soil. During the design of such a grid, the maximum touch and step voltages that might occur during a ground fault have to be evaluated in addition to the station ground resistance.Keywords
This publication has 4 references indexed in Scilit:
- Proving the adequacy of station groundsTransactions of the American Institute of Electrical Engineers, Part I: Communication and Electronics, 1962
- Earth Resistivity Measurements for Grounding GridsTransactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems, 1961
- Efficiency of Grounding Grids with Nonuniform Soil [includes discussion]Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems, 1955
- Analytical Expressions for the Resistance of Grounding Systems [includes discussion]Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems, 1954