新输电线路设计规范对杆塔设计的影响性分析  

Influence analysis of the new transmission line design codes on transmission towers design

作　　者：汪楚清 王辉 WANG Chuqing;WANG Hui(Ningxia Electric Power Engineering Co.,Ltd.,Yinchuan Ningxia 750004,China;School of Civil Engineering,North Minzu University,Yinchuan Ningxia 750021,China)

机构地区：[1]宁夏回族自治区电力设计院有限公司,宁夏银川750004 [2]北方民族大学土木工程学院,宁夏银川750021

出　　处：《宁夏电力》2021年第2期18-23,共6页Ningxia Electric Power

基　　金：宁夏高等学校科学技术研究项目资助(NGY2020066);宁夏自然科学基金资助项目(2020AAC03226)。

摘　　要：2020年国家电网基建部发布了一系列电网工程设计建设的技术标准,为探讨新规范对杆塔的影响,首先对输电线路工程影响较大的如电气、荷载等设计规范进行了分析,阐述其修订要点;接着对原杆塔通用设计采用数理统计分析方法,给出新规范对杆塔的影响。结果表明,本次输电线路相关规范的修订,对低电压等级的线路杆塔影响较大,无论是在电气间隙还是在杆塔承载力方面,原杆塔通用设计已不满足现行规范要求,在未来的基建工程中应引起高度重视。In 2020,State Grid Infrastructure Department issued a series of technical standards for power grid projects in design and construction stage.In order to discuss the influence of new code on the tower,the main design specifications such as electrical and load were analyzed,the main points of revision were expounded.Mathematical statistical analysis method was used for the general design of original tower,and influence of new specifications on tower was concluded.The results show that revision of the relevant specifications of transmission lines has a great impact on the low-voltage line to-wers,whether in terms of electrical clearance or tower bearing capacity,the original general design of towers can no longer meet the requirements of the current specifications,which should be paid great attention to infrastructure projects in the future.

关 键 词：输电线路 风荷载 新旧规范 杆塔 

分 类 号：TM75[电气工程—电力系统及自动化]