间隙型导线张力和弧垂的计算方法  

The Calculation Methods of Gap-type Conductor Tension and Sag

作　　者：鲍星辉[1] 

机构地区：[1]国网辽宁省电力有限公司建设管理中心,辽宁沈阳110005

出　　处：《东北电力技术》2015年第6期15-16,共2页Northeast Electric Power Technology

摘　　要：利用间隙导线钢芯与铝线间可以产生相对滑动的特性,在架设导线时,全部张力由钢芯承担,铝线不承受张力。由于钢芯线膨胀系数远小于铝线,因此,在同等温升下导线的弧垂远小于普通钢芯铝绞线,达到低弧垂的效果。间隙导线张力计算方法与钢芯铝绞线不同,推导出的计算公式,可在工程计算中应用。By the slide property of the steel core and aluminum wire, in the erection of the wire, all the tension borne can be sus- tained by the steel core, meanwhile the aluminum wire does not bear any tension. Since the coefficient of steel linear expansion is much less than the aluminum wire, at the same temperature rise, the vertical arc is much smaller than ordinary wire ACSR to obtain a low sag. The calculation methods of the Gap-type conductor tension are different from the ACSR. This paper deduced a series of formulas which can be used in the engineering calculation of the gap-type conductor.

关 键 词：间隙导线 张力 弧垂 计算 

分 类 号：TM751[电气工程—电力系统及自动化]