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随着铁路的跨越式发展,杭州供电段管内的沪宁、沪杭、浙赣线已全部改造成为复线电气化铁路。但是,由于段原管辖的自闭(贯通)线路基本都是沿着铁路线架设的,与新架设的接触线平行路程较长、间距较短,在施工中,由于带电接触网的静电感应和电磁感应,在自闭(贯通)线路上会产生较高的感应电压,严重危及到作业人员的生命安全。因此,必须
With the leap-forward development of the railway, the Shanghai-Nanjing, Shanghai-Hangzhou and Zhe-Gan lines in the power supply section of Hangzhou have all been transformed into the double-track electrified railway. However, due to the autonomous jurisdiction of the original section of the autistic (through) lines are basically along the railway line erection, and the new erection of the line of contact parallel to a longer distance, shorter spacing, in the construction, as charged contact network electrostatic induction and electromagnetic induction , In the autistic (through) line will have a higher induced voltage, seriously endangering the lives of workers. Therefore, must