220 kV 垂直双分裂导线粘连机理及防护措施研究

摘要

The conglutination phenomena of 220 kV vertical double-bundled transmission-line have been analyzed in this paper.The phenomena danger was pointed out.The conglutination mecha-nisms under electromagnetic force,gravity and internal stress were analyzed,and then the main factors,including construction technology,DC resistance dispersion and weather,caused conduc-tor conglutination were deeply explained.Finally,some counter measures against the sub-conduc-tors conglutination phenomena was given,including controlling construction errors,adjusting sag of conductor,installing spacer and establishing the on-line monitoring system.%介绍近年来出现的220 kV 线路垂直排列双分裂导线的粘连现象，指出导线粘连的危害，分析导线在电磁力、重力、内部应力等相互作用下产生粘连的机理，并指出施工工艺、直流电阻分散、气象条件等是引起粘连的主要原因；最后，提出控制施工误差、调整弧垂、安装间隔棒、建立在线监测系统等预防导线粘连的防护措施。