±800kV向上直流输电线路对地及交叉跨越距离  

Ground Clearance and Crossing Clearance of ±800 kV Xiangjiaba-Shanghai DC Transmission Line

作　　者：黄欲成[1] 赵全江[1] 李翔[1] 徐大成[1] 

机构地区：[1]中南电力设计院,武汉市430071

出　　处：《电力建设》2011年第1期15-17,共3页Electric Power Construction

基　　金：国家工程项目(发改能源[2007]871号)

摘　　要：±800kV在我国作为一个新的电压等级,导线对地及交叉跨越距离对工程的投资影响很大。为了满足工程建设需要,根据国内外资料,结合±800kV向上直流输电线路相关课题的研究结论及我国国情,针对各类地区选择适当的场强标准分析其安全的场强要求及电气间隙要求,并根据不同的场强标准及电气间隙要求确定线路导线对地及各种交叉跨越距离,最终提出±800kV向上直流输电线路导线对地及交叉跨越距离的建议值。As a new voltage class in China,the ground clearance and crossing clearance of the ±800 kV transmission line have significant impacts on project investment.In order to meet the engineering construction needs,based on domestic and international data and the research results of ± 800 kV Xiangjiaba-Shanghai DC transmission line,the required ground clearance and crossing clearance of conductors are determined according to different field strength standards and air clearance requirements in various regions.In the end,the recommended ground clearance and crossing clearance of conductors are proposed for ±800 kV Xiangjiaba-Shanghai DC transmission line.

关 键 词：特高压直流 ±800KV直流输电 对地距离 交叉跨越距离 走廊宽度 电磁环境 

分 类 号：TM721.1[电气工程—电力系统及自动化]