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
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摘要: 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。Abstract: 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.