Schoeman, Eugene (2024) Assessment and Optimisation of Temporary Earthing Systems for Adequate Protection in Transient Industrial Mining Environments. [USQ Project]
Abstract
This dissertation investigates the design and optimisation of earthing systems for temporary electrical installations in transient mining environments. The research addresses the challenges posed by variable soil resistivity, complex fault current pathways, and the threat of lightning strikes, which are prevalent in these dynamic settings. Traditional engineering approaches, often relying on simplified assumptions and generalized models, may not adequately address these complexities, potentially compromising the safety and reliability of temporary installations.
The study employs a multi-faceted methodology encompassing field measurements, simulations, and theoretical analysis. Soil resistivity is characterized using the Wenner method, and fault current distributions are analyzed under various scenarios, considering both network-fed and generator-fed supply modes. The performance of the earthing system is evaluated in terms of touch and step potentials, ground potential rise, and its ability to dissipate fault currents and lightning-induced transients safely.
The findings underscore the importance of accurate soil resistivity assessment, fault current analysis, thorough ground resistance verification, and robust lightning protection measures. The research identifies potential areas for improvement in the existing earthing system design and proposes recommendations to enhance its safety and reliability. This dissertation contributes to developing enhanced design guidelines and best practices for earthing systems in transient mining environments by bridging the gap between theoretical knowledge and practical application.
The insights gained from this research have practical implications for engineers, practitioners, and policymakers in the mining industry. Adopting the recommended approaches and incorporating advanced engineering solutions can significantly improve the safety and reliability of temporary electrical installations, mitigating the risks associated with electrical faults and lightning strikes. This research fosters a culture of continuous improvement and innovation in the pursuit of electrical safety and operational excellence in the challenging and dynamic context of transient mining operations.
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| Item Type: | USQ Project |
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| Item Status: | Live Archive |
| Faculty/School / Institute/Centre: | Current – Faculty of Health, Engineering and Sciences - School of Engineering (1 Jan 2022 -) |
| Supervisors: | Ahfock, Tony |
| Qualification: | Bachelor of Engineering (Honours) (Power Engineering) |
| Date Deposited: | 18 Mar 2026 03:32 |
| Last Modified: | 18 Mar 2026 03:32 |
| Uncontrolled Keywords: | earthing; mining; Wenner method; soil resistivity |
| URI: | https://sear.unisq.edu.au/id/eprint/53159 |
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