METHOD AND DEVICE FOR PREVENTING GALVANIC CORROSION OF FOUNDATION OF BUILDING SUCH AS ELECTRIC CAR SHED AND THE LIKE

摘要

PURPOSE:To surely and safely prevent the galvanic corrosion of a structure to be protected therefrom by setting the voltage on the rail side in an electric car shed to the ground to specific value in the condition where the voltage of the rail in the shed is lower than the voltage of the rail outside the shed. CONSTITUTION:The voltage to the ground of a structure 19 to be protected from corrosion is kept at a specific value of <=0V by realizing the forcible energization from the rail 1 8 outside a shed to the rail 20 inside the shed in the condition the voltage of the rail 20 in the shed is lower than that of the rail 18 outside the shed for the rail insulation 17 having a return wire automatic switch 16. This constitution prevents the flow of the galvanic current from the structure 19 to be protected from corrosion, and surely prevents the galvanic corrosion of the structure 19 to be protected from corrosion.