摘要
阐述直流输电线路杆塔类型、导线排列方式、绝缘子串组合方式及其适用场合,从塔型和塔头布置方式的选择、塔身风振系数的计算、荷载组合等方面对大负荷直流输电线路杆塔的优化设计进行全方位的论证,给出塔头优化布置方案,指出按Q/DG1-A012—2008《±800 kV直流架空输电线路设计技术导则》计算风振系数较为合理、可靠。
This paper expounds types of poles and towers for DC transmission lines, arrangement pattern of lines, combination mode of insulator string and places where it is employed. It comprehensively demonstrates optimal design of high-load DC transmission lines in terms of selecting tower type and arrangement of tower head, calculation of wind vibration coefficient of tower body and load combination. It is pointed out that wind vibration coefficient can be reasonably and reliably calculated in accordance with Q/DG 1-A012-2008 Guiding Rule for Design of ± 800 kV Overhead DC Transmission Lines .
出处
《广东电力》
2012年第5期58-60,111,共4页
Guangdong Electric Power
关键词
大负荷直流输电线路
杆塔
塔头
风振系数
荷载组合
high-load DC transmission line
poles and towers
tower head
wind vibration coefficient
load combination
