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Analysis of earth resistance of electrodes and soil resistivity at different environments


Citation

Lee, Weng Choun and Gomes, Chandima and Ab Kadir, Mohd Zainal Abidin and Wan Ahmad, Wan Fatinhamamah (2012) Analysis of earth resistance of electrodes and soil resistivity at different environments. In: International Conference on Lightning Protection (ICLP), 2-7 Sept. 2012, Vienna, Austria. .

Abstract

Theoretical calculations have been done for determining the low frequency earth resistance of a set of individual electrodes, once the electrode dimensions, installation geometry and soil resistivity profile are given. Accuracy of theoretical estimations was tested by taking measurements of 25 electrodes installed at various soil conditions and environments. It has been found that in most of the site locations, especially vegetation and built-up environments, model predictions deviate considerably from measured values. Three dimensional soil resistivity map of a given land mass is essentially needed in predicting the final earth resistance of a given electrode system. Existing models are not able to produce the large variation in earth resistance, specifically due to the non-uniformity of soil resistivity and probably due to the contact resistance between electrode and surrounding soil. The outcome of this study will immensely be helpful in designing earthing systems for a given installation even at pre-construction stage.


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Additional Metadata

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculty of Engineering
DOI Number: https://doi.org/10.1109/ICLP.2012.6344314
Publisher: IEEE
Keywords: Ground resistance; Grounding; Environmental factors; Electrode; Soil resistivity; Contact resistance; Vegetation
Depositing User: Azian Edawati Zakaria
Date Deposited: 04 Sep 2015 03:58
Last Modified: 20 Nov 2019 06:20
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1109/ICLP.2012.6344314
URI: http://psasir.upm.edu.my/id/eprint/40227
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