Since electrification, the railways have been overhung with cables. 铁路电气化后,轨道上电缆密布,也成为一种奇特的景观。
Safety monitoring and comprehensive automatic system for traction substation is the orientation of railway electrification today. 牵引变电所安全监控及综合自动化系统是目前铁路电气化的发展方向。