Results 61 to 70 of about 248 (107)
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An alternative approach for touch and step voltages measurement in high-voltage substations
Electric Power Systems Research, 2016Abstract This paper presents the study of a measurement technique for touch and step voltages. In essence, we elaborate an approach which is very similar to the measurement of the grounding system impedance. In addition, the main focus is on the measurements at energized substation where different types of coupling between the test leads, grounding ...
Vojin Kostic, Nebojsa Raicevic
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Step and touch voltage – an update for 2004
Australian Journal of Electrical and Electronics Engineering, 2005Hazardous step and touch voltages arise in a variety of high voltage electrical installations, and there are a number of different industry publications which publish acceptable step and touch voltage limits. This paper sets out the derivation of step and touch voltage limits based on the work of Dalziel and Biegelmeier and Lee, and AS/NZS 60479.1 ...
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Design of permissible step and touch voltage with SIMULINK and MATLAB guide
2018 26th Signal Processing and Communications Applications Conference (SIU), 2018In this work, the permissible step and touch voltage are designed in MATLAB SIMULINK. The simulations were carried out in accordance with the IEEE Std 80-2000 standards. The effects of the specific resistance of the material covering the surface, the cleaning time of the short circuit current and the specific resistance of the soil to the permissible ...
Mehmet Yılmaz, Fatih Mehmet Nuroglu
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Simplified conservative measurements of touch and step voltages
1999 IEEE Industrial and Commercial Power Systems Technical Conference (Cat. No.99CH36371), 2003Protection against electric shock requires grounding systems that must be designed primarily to keep touch voltage (E/sub t/) and step voltage (E/sub s/) to a safe value. Testing of the efficiency of a grounding system is mandatory to verify the capability to satisfy the protection requirements at the end of the construction and periodically in the ...
PARISE, Giuseppe, GRASSELLI, Umberto
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Analysis of transfer touch voltages in low-voltage electrical installations
Building Services Engineering Research and Technology, 2010Protection against electric shock in our homes and work places is one of the most important priorities for electrical services engineers who are now designing electrical installations to conform to the requirements of the 17th edition IEE Wiring Regulations (BS7671: 2008). Now Chapter 41 of BS7671: 2008 requires that additional protection by means of a
M. Barrett, K. O'Connell, ACM Sung
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Electrical safety and touch voltage design
Building Services Engineering Research and Technology, 2010The provision of safe and reliable means to afford protection against electric shock in the built environment is deemed one of the most important design elements for electrical services engineers who design low voltage electrical installations to conform to BS7671: 2008 (17th edition IEE Wiring Regulations) and ET 101:2008.
M. Barrett, K. O'Connell, CMA Sung
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2023 IEEE International Symposium on Product Compliance Engineering (ISPCE), 2023
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Touch voltage protection on Singapore MRT system
2005 International Power Engineering Conference, 2005This paper generally describes the various touch voltage protection measures adopted mass rapid transit (MRT) systems. Particular reference is drawn from the practices adopted in the Singapore MRT system. There are potential hazards of electric shocks to passengers and working staff touching conductive surfaces of different voltage potentials e.g ...
W.M. Sim, M. Thong, C.F. Chan
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A Practical Probabilistic Method to Evaluate Tolerable Step and Touch Voltages
IEEE Power Engineering Review, 1984A simplified probabilistic method to calculate the risk of the human body withstand voltage to be exceeded by step and/or touch voltages appearing during abnormal system fault conditions is presented in this paper. The determination of density probability functions and cumulative distributions are done by using characteristic parameters of well known ...
Wen Wang +3 more
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Evaluation of mesh and touch voltage at substations
IEE Proceedings - Generation, Transmission and Distribution, 2002Site tests, to measure the voltages on the surface of the ground above a grid for comparison with calculated values, are only of general interest if the ground has uniform resistivity at and below the grid. However, such conditions rarely if ever exist so the only practical alternative way of obtaining general data is to make tests on model grids in a ...
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