邻近转角塔线档的导线弧垂的研究  

Power-Line Sag on the Near Tension Tower

作　　者：武俊义[1] 李乃民[1] 贾崟 

机构地区：[1]北京华联电力工程监理公司,北京100070 [2]冀北电力有限公司,北京100053

出　　处：《电力与能源》2016年第2期250-253,共4页Power & Energy

摘　　要：认为在输电线路张力架线施工中在孤立档或小耐张段紧线的情况下,根据经验常采用放松应力进行紧线操作很不科学。提出了绝缘子金具串的重量对导线弧垂有影响。根据联有耐张绝缘子串的弧垂计算理论,精确分析了一端或两端分别联有耐张绝缘子串的弧垂计算和弧垂测控,并给出了工程实例。通过在弧垂计算中考虑绝缘子金具串的影响并在施工紧线操作中严加控制,可以使杆塔受力更加合理,消除运行安全隐患。The isolated or small tight-line segment is often encountered in tension stringing in transmission line construction on account of many reasons. It is quite not scientific that the operation of the relaxing tight-line stress is used in construction based on experience. This paper presents the influence of the weight of the insulator and metal fittings on power-line sag. Based on the sag computational theory by linking the insulator and metal fittings strings, it analyzes accurately the sag calculation and sag measurement on one or both ends attached with insulator strings and provides some project examples. Considering the impact of the insulator and metal fittings strings and controlling the tight-line operation strictly in execution, this proposed method can make stress reasonahle in the power tower, and eliminate security risks in operation.

关 键 词：输电线路 邻近转角塔线档 耐张绝缘子串 弧垂计算 弧垂测控 

分 类 号：TM751[电气工程—电力系统及自动化]