Touch and step voltage - Open Access .click

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Maximum Permissible Values of Step and Touch Voltages with Special Consideration to Electrified Railroads

IEEE Transactions on Industry Applications, 1984
Numerous experiments on animals and on the human body have shown that in order to size a grounding system for an electric installation, it is more correct to apply the allowable values of step and touch currents rather than those of step and touch voltages.
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Analysis of the functional dependence of step and touch voltage on soil moisture using the fields interdependence model

2016 IEEE 16th International Conference on Environment and Electrical Engineering (EEEIC), 2016
Soil moisture variation around the electrical substation grounding system — draining/damping — is usually caused in two ways: (1) seasonal atmospheric changes (atmospheric precipitation, sun, frost) and (2) high intensity and long duration currents flow from the grounding system, e.g.
Mario Kokorus +3 more
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Progress in step and touch voltage equations of ANSI/IEEE Std 80-historical perspective

IEEE Transactions on Power Delivery, 1998
This paper describes the evolution of safety criteria and the development of basic formulae for evaluation of the step and touch potentials in AC substations, from 1961 to the present time. Refinements proposed for the 1996 edition of ANSI/IEEE Std 80 are presented in a broader context of the continuing development of this popular IEEE Guide.
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The Impact of Different Fault Types on Touch Voltage, Step Voltage, and Ground Potential Rise