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随着我国城市的发展,地铁已然成为大中城市的必要交通工具之一。在地铁刚性接触网系统中,电客车运营时通过分段绝缘器、膨胀元件、锚段关节、线岔等重要设备时常会出现拉弧现象,严重的会导致供电臂失电,严重影响运营质量。本文根据广州地铁三号线最高时速120km/h的环境,探索使用RTV防污闪涂料,阐述RTV防污闪涂料在城轨接触网系统的应用,总结使用后效果,对比使用前后故障率,指出在城轨接触网系统中施工工艺。
With the development of our cities, the subway has become one of the necessary means of transport in large and medium-sized cities. In the subway rigid contact network system, the arc-passing phenomenon often occurs during the operation of electric passenger cars through important equipment such as segmented insulators, expansion elements, anchor joints, wire bifurcators and the like, which may seriously degrade the power supply arm and seriously affect the operation quality . Based on the maximum speed of 120km / h in Guangzhou Metro Line 3, this paper explores the application of RTV anti-flashover coating, describes the application of RTV anti-flashover coating in the city-rail contact net system, summarizes the post-use results, compares the failure rate before and after use, points out Construction technology in the urban rail contact network system.