Anti-corrosion Technology To Earthing Network System

Grounding device in the substation is to ensure that the work of the grounding, lightning protection grounding, grounding the protection of the essential measures. Network grounding in the anti-corrosion measures, cathodic protection is a scientific and feasible method for grounding has been in operation for the network, particularly in moist soil and coastal areas of electrochemical corrosion of the serious implementation of the network of ground protection cathode, simple construction, the protective effect.But the ground network of cathodic protection parameters of the best there is a value in the past in order to have the experience to determine the initial value. The aims of this issue in accordance with laboratory simulations, electrochemical impedance test study plus current cathodic protection parameters, respectively, of galvanized steel and carbon in the soil leaching solution cathode polarization behavior has been studied through laboratory simulation experiments Quickly determine the cathodic protection parameters. And a choice of the sea to carry out the actual substation applications, plus a set of current protection system to run more than 200 days since the stability of the normal operation, and with the excavation, inspection, show that the average carbon steel on the degree of protection has reached 90%.At the same time, this issue has developed an intelligent remote monitoring systems, intelligent control through the means of control of the cathodic protection system in order to achieve the best results to protect the system against the main potentiostat voltage / current signal and the current collection, easy-to-PC operating procedures for the realization of the long-range potentiostat data acquisition and control functions; according to the scene The situation changes, adjust the parameters of cathodic protection; telephone line to put aside the shackles of cable networks,.Were the subject of the use of electrochemical methods of measuring the galvanized steel and carbon electrodes in different potential EIS, established to determine the cathodic protection parameters and the best way to protect potential, the results showed that the use of EIS Certain metal materials in a given under the condition of cathodic protection parameters, in practice the whole application of anti-corrosion system can slow down the corrosion well, and effectively extend the service life of the grounding grid.