analysis of the transmission and distribution lines and eliminate icing measures（输电和配电线路的分析和消除糖衣的措施）.docVIP

Analysis of the transmission and distribution lines and eliminate icing measures Paper Keywords transmission and distribution lines to eliminate icing measures Abstract When the snow too much overhead transmission and distribution lines, line wire, online lightning severe icing, the first conductor and the tower is increased mechanical load, the conductor sag excessively, resulting in mixed-line or disconnected; When the wires, lightning ice off the line when they make the wires, lightning line jumps and, therefore, cause an accident mixing line. In addition, porcelain, or too much snow and ice accumulation on the cross arm, thereby causing insulator flashover accident. In this paper, transmission and distribution lines and eliminate icing measures were studied. As the overhead line is widely distributed, but in the long run under the open, so often by the surrounding natural environment and the impact of changes, so that the overhead lines will occur in the operation of a variety of failures, according to historical operating statistics, failure in a variety of mostly seasonal failures. An overhead line icing causes Overhead line icing in winter and early spring season (temperature -5 ℃ or so), or snow or rain and snow storms in the weather, in the overhead line conductors, shielding wire, insulator strings, etc. will have to be ice, the formation of frost and wet snow mixed song ice, which is close but a layer of solid transparent or translucent ice formed crown ice is due to water droplets attached to objects in nature, when the temperature drops, these drops have ice crystals, and more thicker end. Sometimes, the wire will end on a layer of frost on the surface, showing the nature of nuggets, the weight ratio of solid ice is much lighter, but its thickness is much larger. Generally when there are large amounts of water and air when there is breeze , most likely to form flute. Landing in the wet snow, wet mine on the one hand gl