间隙型增容导线在扩容线路上的应用  

Application of Gap type Conductor in Up-Rating Transmission Line

作　　者：刘楚加 

机构地区：[1]东莞电力设计院

出　　处：《广东输电与变电技术》2009年第3期48-51,共4页Guangdong Power Transmission Technology

摘　　要：间隙型增容导线是耐热铝合金导线的一种。它的高强度钢芯和合金铝股之间的特殊结构,使其耐受运行温度高达210℃。它的载流比常规同截面的钢芯铝绞线高几乎两倍,弧垂也较小。通过110kV步畔线更换间隙型增容导线工程的案例分析,它的实践应用经验可为同类案例的处理提供借鉴参考。Gap Type Up-Rating Conductor is a kind of heat resisting aluminum alloy conductor. With special structure between high strength steel core and aluminum alloy strands, its operating temperature is up to 210 ℃, results lower sag and almost two times of current carrying of the conventional ACSR of same cross-section. Through a practical application example, the structure, characteristic and engineering detail of this conductor is introduced and the proper opinion to further application is put forward.

关 键 词：间隙型导线 拐点(转移点)温度 线路增容 

分 类 号：TM726.1[电气工程—电力系统及自动化]