微地形微气象对湖南输电线路覆冰影响的观测研究-LineIcing.PDF

The 14th International Workshop on Atmospheric Icing of Structures, Chongqing, China, May 8 - May 13, 2011 Observational Studies Of Hunan Transmission Line Icing At Microtopography And Micrometeorological Lu Jiazheng, Lin Biyan, Zhang Hongxian, Li Bo, Fang Zhen, Yang Li Power Transmission and Distribution Equipment Anti-icing Reducing-disaster Technology key Laboratory of State Grid Hunan Electric Power Test and Research Institute, Changsha, China, 410007 pinkily@126.com Abstract—The landform characteristic of Hunan on the inside of hydraucone, instead of the outside province appears the shape of an open hoof , of hydraucone, and there are more ice formed which is easy to cut off the cold weather from the near the bottom that at the outlet slope of northern, and forms the southward Ling hydraucone . On this basis, the law/rule for set motionless cutting edge when meeting the location of the monitoring system was proposed, relatively warm southern weather. Further, the and with the combination of the actual topography rime or the verglas is formed in this condition, in Hunan, it can be used to guide the concrete set which will lead to the ice-covering on the location of the ice-monitoring system, which plays transmission line and bring great threat to the an important guiding role in the actual engineer safety of power grid. Within the Hunan province， pr