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Risk Assessment of Grounding Hazards due to Step and Touch Potentials Near Transmission Line Structures

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2 Author(s)
El-Kady, M.A. ; Ontario Hydro ; Vainberg, M.Y.

Excessive step and touch potentials near high voltage transmission line structures due to severe ground faults present a hazard to anyone in proximity to a structure when a fault occurs. This paper extends the probabilistic analysis of step and touch potentials near transmission line structures reported at the 1982 IEEE Summer Power Meeting [1] and presents a complete computerized methodology for assessing the overall effectiveness of grounding for any given network and right-of-way conditions. The paper also illustrates some applications of the method in the Ontario Hydro system.

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Power Apparatus and Systems, IEEE Transactions on  (Volume:PAS-102 ,  Issue: 9 )