某机场机坪管网阴极保护系统杂散电流干扰检测及相关研究

Stray Current Interference Detection and Related Research on Cathodic Protection System of an Airport Apron Pipeline Network

近几年越来越多的机坪管网的管道电位出现频率高、幅度大的波动。本文以某机场的机坪管网为例,通过对机坪区域不同测试点的管道电位进行检测及部分测试点的24h监测。测试数据结果分析表明,该机坪输油管网受到了外界直流杂散电流的严重干扰,并初步验证干扰源来自机场下方运行的地铁。

In recent years,more and more pipeline potential of Apron pipeline network appears high frequency and large amplitude fluctuation.In this paper,taking the Apron Pipe Network of an airport as an example,the pipeline potential of different test points in the Apron area is measured and some of the test points are monitored for 24 hours.Analysis of the test data shows that the Apron oil pipeline network is seriously disturbed by DC stray current,and it is preliminarily verified that the source of the disturbance is from the subway running under the airport.