English to Russian Tech/Engineering Energy / Power Generation

A grounding (earthing) system must be designed. The total ground potential rise, and the gradients in potential during a fault (called "touch" and "step" potentials), must be calculated to protect passers-by during a short-circuit in the transmission system.

A site survey shall be undertaken to determine the soil resistivity. Based on these results a study shall be carried out to determine the touch and step potentials of the new system, or extension to an existing system where applicable.