Effect of Electrical Grounding Material on the Cathodic Protection of Buried Metallic Pipeline and Its Current Demand
标 签 区域性阴极保护 接地 管道 阴极保护效果 regional cathodic protection grounding pipeline efficiency of cathodic protection
Polarization characteristics of various grounding materials were measured in laboratory and then the effect of grounding materials on cathodic protection current demand of pipeline was discussed. Moreover, the effect of space between grounding and pipeline on polarization potential was studied by indoor simulation experiments. The results indicated that cathodic protection current demand decreased in turn, when the grounding material was grounding module, copper clad steel and zinc clad steel. Among them, the zinc clad steel was the best material for grounding. When the space between grounding and pipeline was beyond 5 times of sample diameter, the polarization potential of sample stayed stable, indicating that the effect of space was negligible.
中图分类号 TE832 DOI 10.11973/fsyfh-201612012
引用该论文: JIANG Zi-tao,DU Yan-xia,LIANG Yi,XIONG Jin-gen,SUN Bing-bing. Effect of Electrical Grounding Material on the Cathodic Protection of Buried Metallic Pipeline and Its Current Demand[J]. Corrosion & Protection, 2016, 37(12): 1003