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1984年7月2日～7日,石油部在成都召开评审会通过了“地下金属管道交流干扰影响及其防护”的研究成果。高压输电线、电气化铁道附近的地下金属管道上会产生干扰电压,持续干扰电压达57伏,瞬间干扰达几百伏。这将危及管道工作人员的安全,损坏管道的设备并引起管道金属的交流腐蚀。世界煤气会议,国际大电网会议,国际电报电话咨询委员会都多次讨论过该课题,组织过有权威性的专家对有关问题进行研究。
From July 2 to July 7, 1984, the Ministry of Oil held a review meeting in Chengdu and passed the research results of “Effects of Interference on Underground Metallic Pipelines and Their Protection”. High voltage transmission lines, underground metal pipe near the electrified railway will produce interference voltage, sustained interference voltage of 57 volts, instantaneous interference up to several hundred volts. This will endanger the safety of pipeline workers, damage to pipeline equipment and lead to exchange corrosion of pipeline metals. The World Gas Conference, the International Conference on Major Power Grids and the International Telegraph and Telephone Consultative Committee have discussed this topic on many occasions and organized authoritative experts to study the issue.