导线刚度研究在线路设计中的应用

Application of Conductor Stiffness Research in Transmission Line Design

针对目前绝大多数线路设计中都把导线作为柔性线来研究的现状,在对导线刚度研究的基础上,分析了考虑刚度在导线的应力、弧垂方面所存在的差异,得出在选择紧线钢丝绳时要扩大安全系数;导线弧垂在适当范围内可稍微小一些,但最好不要超过设计弧垂的5%。

the conductors are regarded as flexible lines for overwhelming majority of transmission design. Based on the research of conductor stiffness, the differences of stiffness are analyzed in the aspects of conductor stress and sag, and the conclusion is obtained that safety coefficient must be enlarged when tight wire ropes are selected. To the extent the line sags appropriate to be slightly smaller, but preferably no more than 5 % of the design sag.