Development of Pipeline Induction Parameter Detection Instrument for Lightning Strike Test of Cast Iron Pipeline during Lightning Strike

With the large-scale construction of China's oil and gas transportation network, the safety protection of buried pipelines under lightning disasters has become more and more prominent. When lightning strikes buried pipes, it accelerates metal corrosion on the pipe wall and causes explosions and fires. Lightning hitting the pipeline will produce a strongly induced voltage. To deeply analyze the law of the pipeline being struck by lightning, and then find out the weak parts in the pipeline, and make advance protection, this paper proposes a multi-point synchronous detection scheme for the induced voltage generated by the pipeline when it is hit by lightning and gives the corresponding software and hardware implementation. Simulation experiments show that the detection scheme has a high degree of synchronization and high acquisition frequency, which can provide strong data support for reconstructing the process of lightning strikes in pipelines and exploring the distribution law of induced voltage on channels. It has high engineering application value.