500kV输电线路铁塔地线顶架横担主材高空更换作业

Altitude Replacement of Crossarm Main Materials in Tower Ground Line on 500kV Transmission Line

介绍了输电线路铁塔地线横担主材等塔材高空更换方法及施工步骤。将该方法应用于某500kV线路铁塔地线顶架横担主材更换工作中,实际应用情况表明,与传统检修方法即在地面进行更换的方式相比,该方法可有效提高作业效率,缩短线路停电时间,减少施工所需投入的人力物力。

The altitude replacement method and its construction steps of crossarm main materials on tower ground lines were introduced. The actual use in the repair works of a 500 kV overhead line tower grounding crossarm main materials indicated that this replacement method could effectively improve the efficiency of construction, compared with the traditional repair methods （repaired on the ground）. It could shorten the line outage time and reduce the construction investment of manpower required.