摘要
电线力学计算是高压架空输电线路力学计算中最重要的计算。从理论上介绍了电线的应力和弧垂及其计算推导,讨论了临界档距的判别和控制气象条件的确定,并推导出实例设计中用到的连续档、孤立档放线曲线的应力、弧垂及临界档距的计算公式。利用可视化编程语言VC++.net进行编程计算,使计算更加简单迅速,交互界面更加友好,最后通过工程上的具体实例对所编制的软件加以验证和说明。
The mechanics calculation of electrical wire is the most important calculation on HV overhead transmission lines. The author expatiates on electrical wire stress and sag and their derivation in theory, describes the way of distinguishing critical span and determining weather control conditions, and deduces formulae of stress, sag and critical span of seriate span and isolated span used in the design. To make use of advanced visual program language, the calculation is easier and speedier, and the interface is more friendly. At last, the software is validated through an engineering example.
出处
《电力科学与工程》
2006年第3期53-55,71,共4页
Electric Power Science and Engineering
关键词
电线力学计算
临界档距
应力
弧垂
mechanics calculation of electrical wire
critical span
stress
sag
