From the experiment result of metal specimens buried in underground, discussing the influence of AC stray current on cathode protection by using galvanic anode method.

根据室外现场埋片试验结果，讨论了杂散电流对牺牲阳极阴极保护性能的影响。

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Once corrosive solution arrived at the substrate, galvanic corrosion occurred, and aluminum coatings acted as the sacrificial anode protecting the steel substrate from corrosion.

腐蚀介质到达基体时，将发生电偶腐蚀，铝涂层会作为牺牲阳极保护基体免受腐蚀。

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By insulating flange at the junction between the new and old pipe, the long line galvanic cell is "broken up" - the anode (new pipe) is electrically separated from the cathode (old pipe).

在新、旧管子连接处安装绝缘法兰，破坏了长管道的原电池，即：阳极(新管子)和阴极(旧管子)间电断路。

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