Abstract: A grounding resistance surveillance system comprises a plurality of measurement devices configured for measuring a grounding resistance value and being arrangeable at different locations within a target area, and at least one gateway device. Each of the plurality of gateway devices is communicatively coupled to at least one further measurement device of the plurality of measurement devices, and at least one measurement device of the plurality of measurement devices is in direct communication to the at least one gateway device and at least one measurement device of the plurality of measurement devices is only in indirect communication to the at least one gateway device such that a mesh network of coupled measurement devices is formed. The grounding resistance surveillance system is configured to execute a method for determining a grounding resistance in the target area. Further, a measurement device for a grounding resistance surveillance system is described.

Abstract: A monitoring device for a cathodic protection system of a metallic structure comprises a sensor module configured for measuring an electrical signal indicative of a DC signal and an AC signal of the cathodic protection system, a control module and a communication module operatively coupled to a central processing device of the cathodic protection system. The control module is configured to switch the monitoring device between a sleep mode and an active mode. Further, the monitoring device, when being in the active mode, is configured to obtain the electrical signal, apply a first filter on the signal to obtain at least one filtered signal, convert the at least one filtered signal into at least one digital signal, apply a second filter to obtain at least one filtered digital signal and forward the at least one filtered digital signal to the central processing device. Further, a cathodic protection system is described.

Abstract: A conductive and swellable backfill material for earthing applications comprises a conductive material selected from the group of graphite, coke powder and a combination thereof, a polyacrylamide powder, a binder comprising cement, and, optionally, a salt selected from the group of magnesium sulfate, sodium sulfate and a combination thereof. This unique backfill material enables to utilize the same in low moisture zones because of its low resistivity, high-water absorption, and non-leachable behavior.

Abstract: The invention relates to a method of measuring earth ground resistance. The method comprises the steps of: Performing an earth ground resistance measurement by means of an earth ground measurement device, thereby obtaining measurement data, Gathering the measurement data via at least two different channels of the earth ground measurement device such that multiple measurements are performed at once, wherein each channel is configured to perform an earth ground resistance measurement, and Uploading the measurement data automatically to a remote processing module separately formed with respect to the earth ground measurement device. Further, a system for measuring earth ground resistance is described.