for the simulation of the hand touching the equipment, or an EXCP, must be capable of penetrating a paint coating (not insulation).
The reading of the voltmeter, which is referred to as the test current, must then be scaled up by multiplying it by the ratio of the effective ground-fault current provided by the utility to the test current.
The touch voltage measurement should be performed in the substation, as a sampling test, keeping in mind that higher magnitudes for the touch voltages may be found around the edge of the ground grid.
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