摘要
对内蒙古电网110 kV输电线路通用设计模块划分涉及的原则进行讨论。通过收集内蒙古西部地区气象台(站)资料并进行频率模型计算,得出通用设计基本风速的选取范围为27.0~31.0 m/s,并以Ⅱ型直线塔为例,对塔质量和基础作用力进行计算,确定通用设计基本风速的级差设置为2 m/s。并介绍了输电线路覆冰、海拔高度、地形条件、回路数、导地线选择等其他设计条件的选取原则。最后确定内蒙古电网110 kV输电线路通用设计6个铁塔模块,基本能够满足输电线路设计需求。
This paper discusses several principles involved in the division of 110 kV transmission line general design modules.Firstly,by collecting meteorological data of the west Inner Mongolia and calculating frequency model,the selection range of the general design reference wind speed is form 27.0 m/s to 31.0 m/s.Meanwhile,through calculation of tower weight and forces on the foundation with takingⅡtangent tower as an example,the differential of reference wind speed is set as 2 m/s.Secondly,several other principles involved in the module division,such as transmission line icing,altitude,terrain condition,circuit number,conductor and ground wire selection,etc.are introduced.Finally,this paper introduces six tower modules of general design of 110 kV overhead transmission line of Inner Mongolia Power Grid,which can basically satisfy the transmission line design requirements.
作者
牛格图
李孝林
张鑫
王鑫龙
NIU Getu;LI Xiaolin;ZHANG Xin;WANG Xinlong(Inner Mongolia Power Economy and Technology Research Institute,Hohhot 010010,China)
出处
《内蒙古电力技术》
2020年第4期83-86,共4页
Inner Mongolia Electric Power
基金
内蒙古电力(集团)有限责任公司科技项目“内蒙古电网通用设计实施方案研究与应用”(2018-74)。
关键词
内蒙古电网
110
kV输电线路
通用设计
基本风速
海拔高度
地形条件
回路数
Inner Mongolia power grid
110 kV overhead transmission line
general design
reference wind speed
altitude
terrain condition
circuit number
