环境友好型输电线路用导线之二——导线的应用

Environmental-Friendly Conductor for Transmission Lines, Part Ⅱ: Conductor applications

叙述一种被称为"环境友好型输电线路用导线"的导线,能满足在恶劣环境条件下仍然使线路正常供电、安全运行。这种导线是一种钢芯SZ铝型线同心绞的架空导线,具有更大的导体截面利用率,能降低风载,良好的自阻尼性能和耐腐蚀、低覆冰、低电晕能力,单线不易受损,结构紧密牢靠。文中按导线的不同用途,详实的举例加以说明。它将成为未来输电线路使用中的一种重要线种。因论文篇幅较长,故分为两篇分别撰写,第一篇为导线特性,第二篇为导线的应用。

In this paper, a so-called environmental-friendly conductor for transmission lines is presented, which ensures normal power transmission and safe operation even in severe environmental conditions. This is a concentric-laystranded SZ aluminium profile conductor steel reinforced. It has greater utilization ratio of conductor cross-sectional area and can reduce the wind load. Besides, this kind of conductor features excellent self-damping characteristics, corrosion resistance, small ice covering, low corona, difficulty to damage the strands and compact construction. In this paper, the conductors, which will become an important conductor category in the future transmission line, are presented in detail and by examples according to their applications. This long paper is divided in two parts. Part Ⅰ describes conductor characteristics. Part Ⅱdescribes conductor applications.