Considerations about the maintenance in electrical networks

The technological development experienced by industrialized countries has brought about a huge increase of demand of electric power. As a result, the utilities in charge of electric power transmission and distribution have noticed that the overhead lines are reaching critical values in different parameters, for this reason the maintenance is very important. In order to tackle this issue, we have undertaken a proposal for the good selection of the system maintenance in electrical networks. It carried out a comparative analysis, among the systems for corrective, preventive maintenance and predictive, being determined the rational areas use of each one of them, in function of the fault level of the network, using as function object the Net Present Value. Actually the results of this work are used in different enterprises as a methodology.