Significance of Step and Touch Voltages
Dwarka Prasad1, H.C. Sharma2

1Dwarka Prasad, Research Scholar, Department of Electrical Engineering Department, Uttarakhand Technical University, Dehradun, Uttarakhand, India.
2Dr. H.C. Sharma, Vishveshwarya Institute of Engineering & Technology, Dadri , G.B. Nagar (U.P), India.
Manuscript received on October 06, 2011. | Revised Manuscript received on October 27, 2011. | Manuscript published on November 05, 2011. | PP: 193-197 | Volume-1 Issue-5, November 2011. | Retrieval Number: E0189091511/2011©BEIESP
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Abstract: Step and touch voltages play an important role when designing high voltage substation. Step and touch potentials near high voltage substation due to severe ground faults present a hazard to anyone in proximity to substation when a fault occurs. A primary issue of concern is hazardous step and touch voltage is that arise during fault situations, hence a reliable and efficient solution to the problem is essential. Although personnel safety is of primary concern, effect of electric current, resistance of the human body and tolerable voltage criteria considerations are also essential in the design system to ensure the protection of personnel and equipment. This study will briefly explain the significance of step and touch voltages.
Keywords: Step and Touch Voltages, Grounding System, Substation, Safety.