APLICAÇÃO E VIABILIDADE DA UTILIZAÇÃO DA PROTEÇÃO CATÓDICA EM TORRES DE TRANSMISSÃO DE ENERGIA ELÉTRICA

Abstract

For some authors corrosion is defined as the inverse process assuming that metal tends to return spontaneously to its ore origin. To understand the corrosive process it is necessary to understand the relation between the material and the medium to which it is inserted (in this case corrosive medium), and the mechanism of the corrosion process. Based on these arguments this project seeks a way to protect the metal structures, in this case the power transmission towers to inhibit them from the action of the corrosive process, in its most critical part, in the foundation, where there is direct contact with the soil. According to Sir Humphrei (nineteenth century), transforming the metal structure into a cathode of an electrochemical cell would preserve the corrosion effects and would only need a poorer, electronegative, the anode to transfer the corrosive effects to it. This project seeks the application of cathodic protection used for the protection of ships and buried pipes to control or inhibit the corrosive effect of soil on the structure thus increasing its life. Faced with this challenge, it is necessary to application of concepts method analysis and feasibility analysis, and from this justify its effectiveness achieving gains in economy and safety for the system.