摘要
2008年的冰灾让整个电力行业重新审视覆冰对线路的影响,相继对现行的技术规定进行了修改,增加了许多与抗冰有关的内容。结合2008年冰灾铁塔破坏形式,对导地线覆冰荷载进行分析,对新老规定进行技术经济比较,提出了铁塔抗冰设计应注意的问题和建议。
The ice disaster at the beginning in 2008 had enabled designers to re-reflect upon the influence of icing on transmission line in electricity industry and some technical codes of ice-resistant designing had been compiled one after the other. In this paper, utilizing the failure modes of transmission towers in the ice disaster in 2008, ice load of conductor and ground wire is analyzed. Then combining with new icing regulations and codes, technical and economical comparisions between new codes and old one are made. Some questions and suggestions are put forward which should be noticed when taking into account the ice- resistant design of transmission line towers.
出处
《电网与清洁能源》
2009年第11期13-16,共4页
Power System and Clean Energy
关键词
覆冰荷载
抗冰设计
输电塔
ice load
ice-resistant design
transmission line towers
