电气化铁道接触网新线初伸长的影响及对策  

作　　者：黄绘[1] 

机构地区：[1]柳州铁道职业技术学院,广西柳州545616

出　　处：《科技创新与应用》2020年第20期133-134,共2页Technology Innovation and Application

摘　　要：接触线和承力索新线初伸长是蠕变伸长和形变伸长的综合体现,会对接触网下锚端和悬挂设备产生影响,因此提出额定张力张拉和超拉的方法解决此问题,多采用超拉。超拉分机械超拉和增加坠砣超拉两种方式。我国使用增加坠砣超拉方式,按照"加固-超拉-调整"的步骤进行。The initial elongation of contact wire and new load-bearing cable is the comprehensive embodiment of creep elongation and deformation elongation,which will affect the anchor end and suspension equipment under the catenary,so the methods of rated-tension stretch and overstretch are put forward to solve this problem.There are two ways of overdrawing:mechanical overstretch and adding weight overstretch.In our country,the overstretch method of adding weight is used,which is carried out according to the steps of"reinforcement-overstretch-adjustment".

关 键 词：线索 初伸长影响 超拉 

分 类 号：U225.5[交通运输工程—道路与铁道工程]