输变电线路覆冰原因及其消除措施

The Reasons of Ice Covering and the Elimination Measures of Power Transmission and Transformation Lines

近年来,我国气温持续走低给电网运行带来了一定的压力,冬季气温较低也导致了输变电线路覆冰的发生。输变电线路覆冰是指由于受到大气温度过低等因素影响,导线、绝缘子、地线等处于一定温度下不能保证其良好绝缘性,在导线表面形成冰层的现象。本文重点分析输变电线路覆冰原因与产生覆冰现象的条件,提出针对性消除措施,以期提供参考。

In recent years,the continuous low temperature in China has brought a certain pressure to the operation of the power grid,and the low temperature in winter also leads to the occurrence of ice covering in the power transmission and transformation lines.The icing of transmission and transformation lines refers to the phenomenon that wires,insulators,ground wires and other good insulation cannot be guaranteed at a certain temperature due to the influence of atmospheric overcooling or icing at a certain temperature,thus forming ice on the surface of the wire.This paper focuses on the analysis of the ice causes and conditions of the transmission and transformation lines,and puts forward targeted elimination measures to provide reference.