The analysis of causes of destruction of main gas pipelines for the last two decades is carried out. It is shown that the share of accidents because of corrosion cracking energized increases. The conclusion is drawn that inspection and repair of emergency sites has to become a paramount task. It will allow to reach considerable decrease in accident rate. At the same time the extent of emergency sites of gas pipelines with a diameter of 1420 mm is about 1700 km, 1220 mm – 1000 km; 1020 mm – 400 km that, generally, makes 2.3% of the total extent of gas pipelines of the corresponding diameters (1020-1420 mm).
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机译：进行了过去二十年主气管道破坏原因分析。结果表明，由于腐蚀裂缝的腐蚀激励增加了事故的份额。得出的结论是，应急场地的检查和修复必须成为最重要的任务。它将允许发生大量的事故率降低。同时，直径为1420毫米的燃气管道急动部位的程度约为1700公里，1220毫米 - 1000公里; 1020 mm - 400公里通常，占相应直径的气体管道总量的2.3％（1020-1420 mm）。
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