Design Consideration of Electrical Earthing System for High-rise Building

Authors

  • Lai Lai Win Department of Electrical Power Engineering, Mandalay Technological University Mandalay, Myanmar
  • Khin Thuzar Soe Department of Electrical Power Engineering, Mandalay Technological University Mandalay, Myanmar

Keywords:

Electrical earthing system, Soil resistivity, Safety, Earth electrode resistance, Effective grounding.

Abstract

Electricity is dangerous and required proper grounding to prevent unwanted voltage from passing through personnel, critical equipment and other nearby metallic objects. Soil resistivity directly affects the design of a grounding system. When designing an extensive grounding system it is advisable to locate the area of lowest soil resistivity in order to achieve the economical grounding installation. Neither very low resistivity nor very high resistivity is safe for human safety under power system fault conditions. The earthing or grounding is mainly affected by soil resistivity. This study will briefly explain the earthing of Lightning Protection System for 11th storeyed building. The soil type of this building is loam and soil resitivity is 150 ?m.

References

[1] Dawalibi, F.P., Ma,J., and Southey, R, (1994), Behaviour of Grounding Systems in Multilayer Soils, a parametric Analysis, IEEE Transactions on Power Delivery, PWRD, No.1, pp. 334-341.
[2] C. Prévé, “Protection of Electrical Networks,” ISTE Ltd, London, 2006.
[3] Brian Scaddan, “Electrical Installation Work”, 5th edition, 2005.
[4] B. Lacroix and R. Calvas, “Earthing Systems in LV,” Schneider Electric’s Cahier’s Technique no. 172, March 2002.
[5] Blatner, C.J., (1982), Study of Driven Ground Rods and Four Point pin soil Resistivty Tests, IEEE Transactions on Power Apparatus and Systems, Vol. PAP 101, No.8, pp. 2837- 2850.
[6] Nigel Johnson, .J, (2006), “Earthing Manual”, section E3 Soil Resistivity Measurement
[7] Wenner, F.C (1915), “A method of measuring Earth Resistivity”, U.S Bureau of standards, scientific paper 258,pp 469-478
[8] Dawalib F.P and, Ma, J (2002), “Extended Analysis of Ground Impendence Measurement using the Fall-of-Potential Method”, IEEE Transactions on PWRD, vol. 17, No.4, pp. 881-885

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Published

2016-11-12

How to Cite

Win, L. L., & Soe, K. T. (2016). Design Consideration of Electrical Earthing System for High-rise Building. American Scientific Research Journal for Engineering, Technology, and Sciences, 26(2), 270–282. Retrieved from https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/2257

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