In the present study, field tests were performed using low-resistivity materials (LRMs) in different grounding system (GS) configurations to reduce the grounding resistance (GR) and assess the variation in the effectiveness of the LRMs with increases in the complexity of the GS design. Different configurations were implemented in soils with different resistivity values to determine the variation in the effectiveness of each LRM design with increases in the soil resistivity. Lastly, the percentage decrease in the GR was assessed as a function of the increase in the complexity of the GS design and the variation in the soil resistivity. The results of this study provide a useful guide for engineers and researchers who study, design, and build innovative and effective GSs by applying improved compounds for safe electrical installations.
Bibliographical noteFunding Information:
Acknowledgments: The authors wish to express their most sincere acknowledgement and gratitude to the Salesian Polytechnic University (Universidad Politécnica Salesiana—UPS), particularly the Energy Research Group (GIE), for their guidance and for funding this research.
This research was funded by the Energy Research Group (GIE) of the Salesian Polytechnic University, Cuenca, Ecuador under resolution N◦ 003-005-2019-07-18.
© 2022 by the authors. Licensee MDPI, Basel, Switzerland.
- grounding resistance
- grounding systems
- low-resistivity material (LRM)
- soil resistivity