接触网刚柔过渡段刚性悬挂吊点特殊设计

Special Design of Rigid Suspension Dropping Points at Rigid and Flexible Transition Section of Overhead Contact Line

在地铁刚性接触网与柔性接触网的过渡转换设计中,过渡转换段切槽过渡汇流排内柔性过渡支接触线受端部汇流排限制,下锚支接触线下锚转角较小,抬高下锚时与下锚点前刚性接触网悬挂点常规底座交叉。为保证下锚支接触线与下锚点前刚性接触网悬挂底座间空气绝缘间隙及刚性悬挂吊点跨距要求,对下锚点前刚性悬挂进行特殊设计。

For design of transition and transfer between rigid overhead contact line and flexible overhead contact line,the transitional flexible contact wire inside the transition and transfer section slotted transitional bus bar is restricted by the bus bar at the end,the angle for terminating contact wire is rather small,it will be crossed to the rigid overhead contact line common bracket before the termination point when it is terminated at a higher height.In order to guarantee the air insulation clearance between terminating contact wire and rigid overhead contact line bracket before termination as well as the requirements of rigid suspension dropping point,it is require to carry out the special design for rigid suspension before termination.