对老旧线路载流能力的评估

Evaluation of Current Carrying Capacity of Old Lines

对于线路允许载流量构成影响的因素众多,但是其中的主要原因包括两大方面,一方面是线路下方交叉跨越因素,另一方面是线路过流部件的发热因素。如果出现影响到线路允许载流量的问题,会影响到整体的线路运行质量。所以,必须要高度的重视。文章从以上的角度校核35kV周黄线允许载流量,提供给实践工作有价值的借鉴。

There are many factors that infl uence the allowable current carrying capacity of the line,but the main reasons include two aspects:one is the cross crossing factor under the line,and the other is the heating factor of the line overcurrent components.If there is a problem that affects the allowable carrying capacity of the line,it will affect the overall operation quality of the line.Therefore,we must attach great importance to it.In this paper,from the above two angles,the allowable ampacity of 35 kV zhouhuang line is checked to provide valuable reference for practical work.