Devices for protection of underground metal structures against corrosion stray currents

摘要

The invention relates to protection of underground metal structures (ICP) Corrosion stray currents in zones alternating potentials. The technical result is to increase the efficiency of cathodic protection PMS due to the ability to control the electrical parameters of the circuit "protector - PMS." This technical result is achieved due to the fact that the potential level is measured periodically U tread relative ICP. Wherein during measurement circuit "Protector - ICP" torn to obtain reliable measurement results. 1 bp 2 and ZP f-ly; 1 yl.