Earth Grid Safety Consideration: Civil Upgrade Works for an Energised Substation

Authors: M. Nassereddine, A. Hellany, M. Nagrial, J. Rizk

Abstract:

The demand on High voltage (HV) infrastructures is growing due to the corresponding growth in industries and population. Many areas are being developed and therefore require additional electrical power to comply with the demand. Substation upgrade is one of the rapid solutions to ensure the continuous supply of power to customers. This upgrade requires civil modifications to structures and fences. The civil work requires excavation and steel works that may create unsafe touch conditions. This paper presents a brief theoretical overview of the touch voltage inside and around substations and uses CDEGS software to simulate a case study.

Keywords: Earth safety, High Voltage, AC interference, Earthing Design.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1058573

References:

[1] IEEE guide to safety in AC substation grounding, 2000- (IEEE, New York, 2000).
[2] Hellany A Nassereddine M, , Nagrial M. Rizk J. "Soil Resistivity Structure and its implication on the Earth Grid of HV substation" 2011 World Academy of Science, engineering and Technology , Vol 60, pp 1322-1326, (ORS ID: 222496)
[3] Nassereddine M, Hellany A, 2009, AC Interference Study on Pipeline: the Impact of the OHEW under Full Load and Fault Current, Proceeding in the 2009 International Conference on Computer and Electrical Engineering, pp 497-501, (ORS ID: 211920)
[4] Nassereddine M, Hellany A, Nagrial M, "Analysis of the impact of the OHEW under full load and fault current" 2010, International Jurnal of Energy and Environment (IJEE), Volume 1, Issue 4, pp. 727-736. (ORS ID: 216605)
[5] Hellany A, Nassereddine M, Rizk J, 2009, How to design an effective earthing system to ensure the safety of the people, 2009 International Conference on Advances in Computational Tools for Engineering Applications, pp 416-421, (ORS ID: 210202)
[6] Nassereddine M, Hellany A. "OHEW Earthing Design Methodology of Traction Substation" 2010 World Academy of Science, engineering and Technology, Vol 66, no. 0, pp 1644-1648, ISSN 2070-66, (ORS ID:217809).
[7] AS/NZS 4853:2000 electrical hazards on metallic pipelines
[8] Hellany A, Nassereddine M, Nagrial M. Rizk J. " Safety Compliance of Substation Earthing Design" 2011 World Academy of Science, engineering and Technology , Vol 60, pp 525-529, (ORS ID: 222495)
[9] Nassereddine M. Hellany A. "Earthing Design Improvement: Correlation Between Design and Construction" 2010 World Academy of Science, engineering & Technology, no. 66, pp 1364-1367, ISSN2070- 66. (ORS ID: 217810).