摘要
冰灾是输电线路所面临的最大威胁之一,对现有线路进行加固改造是防止及减轻冰灾、确保线路安全运行的重要手段。按照导线输送容量的要求,介绍了220 kV输电线路加固改造工程中拟采用的三种导线,并根据工程具体情况分析了三种导线的利弊。通过综合比较,推荐采用铝包钢芯耐热铝合金导线,该导线具有良好的经济性和实用性。
Ice disasters is one of the most severe threats to the secure and reliable operation of transmission system. To alleviate the damage effect of transmission line icing, transmission line reinforcement and reconstruction is the important technology. Three conductor options are compared according to the conveying capacity,and the advantages and disadvantages of each conductor are analyzed.Finally, the aluminium clad steel stranded heatresistant conductor is recommended, which is superior to other methods in economical efficiency and practicability.
出处
《电网与清洁能源》
2009年第5期19-21,共3页
Power System and Clean Energy
关键词
输电线路
加固改造
导线选型
transmission line
reinforcement and reconstruction
conductor configuration
