接地电池对长输管道阴极保护系统的影响

Analysis on the Impact of Electrolytic Grounding Cell for the Cathodic Protection System of Long Distance Pipeline

介绍了接地电池的组成及作用,通过现场试验数据,证实了接地电池对管/地电位测量会产生误差,对恒电位仪的输出会产生干扰,且较小的内阻会导致电流的流失。同时指出了在地下水较丰富的地区,不宜安装接地电池。

This paper introduces the constitution and function of electrolytic grounding cell. The field experimental data demonstrates that the measuring errors of pipe/soil potential produce and the interference of output values of potentiostat occur by the electrolytic grounding cell, and very small-scale internal resistance will result in the current loss. The authors consider that the electrolytic grounding cell is not suitable for installing in rich subterranean water region.