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Measure wandering currents

 "Era Max" equipment is applied to measure the direct wandering currents (Plant of geophysical instrument making "Geological exploration" St. Petersburg). Era equipment package is including the measuring instrument with the digital liquid crystal indicator. Measurements are based on GOST 9.602-2005 "Underground Constructions": the general requirements and anti-corrosion protection, not less than in 6 points in two perpendicular directions; the distance between two measuring copper-sulfate electrodes is about 100 m; measurements are made continuously for a 10 minutes at intervals of 10 seconds.