ELECTRIC RUST PREVENTING DEVICE FOR POWER TRANSMISSION STEEL TOWER AND ELECTRIC RUST PREVENTING METHOD FOR POWER TRANSMISSION STEEL TOWER

摘要

To provide an electric rust preventing device for power transmission steel tower and an electric rust preventing method for power transmission steel tower capable of being easily installed and having no adverse effect on strength balance of whole power transmission steel tower.SOLUTION: Normally an insulation coating is coated on a power transmission steel tower 2 and an insulation coated film is formed, but the insulation coated film is degraded with time and rain water soaks into a crack when crack is generated. On the other hand, rain water during raining electrifies between an anode 3 and the power transmission steel tower 2 at a recess 13 and conducts, and current flows between the anode 3 and the power transmission steel tower 2. By current flows between the power transmission steel tower 2 and the anode 3, reverse electric reaction is achieved in the case that the power transmission steel tower 2 is corroded (oxidized) and corrosion of the power transmission steel tower 2 is prevented. Power is also fed to the anode 3 itself from a battery 5 via a lead wire 14, and it is not happen that it is consumed earlier as a mere sacrificial anode.SELECTED DRAWING: Figure 1