Evaluation and Prevention of Stray Current Interference Caused by Urban Rail Transit on Adjacent Natural Gas Pipelines
Metro systems are commonly known sources of stray current interference,which can cause severe corrosion to neighboring buried pipelines.This article studies the evaluation methods and prevention measures for stray current interference from metros on adjacent pipelines.Taking the buried pipelines near Changzhou Metro Line 2 as an example,intelligent acquisition devices were used to detect and evaluate the stray current interference to assess the degree of interference on the pipelines.The analysis of the data revealed that the pipelines were subjected to varying degrees of stray current interference,exceeding the protective criteria in some cases.Prevention measures for stray current were proposed to provide solutions and guidance for practical stray current interference evaluation.
stray currentstray current preventionburied pipeline
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