我国电气化铁路已有十几年的历史,接触网是电气化铁路的主要供电设备,至今采用的是链型悬挂方式,实践证明:在行车速度不高的情况下,这种悬挂方式结构复杂、施工维修量大、造价高、用料多,不利于多快好省地建设电气化铁路。近年来国外正在发展一种弹性简单悬挂接触网(以下简称简单悬 The electrified railway in our country has a history of over ten years. The catenary is the main power supply equipment for the electrified railway. The chain suspension method that has been used so far has been proven. In the case of low traveling speed, the suspension structure is complex in construction Large amount of maintenance, high cost, materials and more, is not conducive to the construction of more rapid and cost-saving electric railway. In recent years, foreign countries are developing a flexible simple suspension catenary (hereinafter referred to simply hanging