摘要
高海拔地区超高压送电线路架线带电跨越施工常遇到一些问题,如雷雨天气较多,绝缘网主绳无法长期保持干燥状态;受潮后主绳伸长率较大,无法达到正常绝缘条件等。为此,采用伸长率较小的钢丝绳来铺设封顶绝缘网,用保持恒定张力的方法保持其与被跨电力线的安全距离,解决了主绳的变形和绝缘问题,并有效地降低了带电跨越施工的风险。
Aiming against problems of super voltage electricity wires electrification crossing construction in high elevation areas, such as many thunderstorm days, capping fence can＇t stay dry for long , main rope would stretching too long in damp, impossible to be in insulated condition and so on, steel rope with less stretch rate is adopted in the capping insulated fence, keeping the invariableness tension made a safe distance between the crossing wires, it settled the problems of deform and insulation of the main rope, and the risk of the construction is brought down effectively.
出处
《工程质量》
2010年第1期33-36,共4页
Construction Quality
关键词
封顶网
带电
跨越
架线
capping fence
electrification
crossing
frame wire
