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Posts tagged as Wenner

Earthing and lightning protection systems

  HHK Lightning and Protection Services offers structural lightning protection systems for both industrial and domestic projects, including all mining plants; risk assessment and protection level reports; performs soil resistivity surveys so that an earth can be designed to exact electrical specification rather than by physical dimensions, based on the Wenner and fall-of-potential methods. Also […]

Principles and testing methods of earth ground resistance

Information from Comtest

Poor grounding contributes to downtime but a lack of good grounding is also dangerous and increases the risk of equipment failure. Over time, corrosive soils with high moisture and salt content and high temperatures can degrade ground rods and their connections. So, although the ground system had low earth ground resistance values when initially installed, […]