准东-华东±1100kV特高压直流输电线路工程杆塔设计原则国家电网公司直流建设部二○一五年十月目录1工程概况...........................................................................................................................................12技术标准和规程规范.........................................................................................................................13电气条件...........................................................................................................................................23.1气象条件组合....................................................................................................................................23.2导地线方案及参数..........................................................................................................................133.3计算用最大风速..............................................................................................................................143.4空气间隙..........................................................................................................................................153.5极间距取值......................................................................................................................................163.6绝缘子串型及参数..........................................................................................................................173.7导地线布置方式..............................................................................................................................263.8防雷保护..........................................................................................................................................264杆塔型式和杆塔规划.......................................................................................................................274.1杆塔型式..........................................................................................................................................274.2杆塔规划..........................................................................................................................................275荷载计算..........................................................................................................................................505.1导地线风荷载计算..........................................................................................................................505.2绝缘子及金具荷载..........................................................................................................................515.3杆塔荷载条件..................................................................................................................................525.4电气荷载表......................................................................................................................................535.5杆塔荷载计算..................................................................................................................................535.6荷载组合..........................................................................................................................................576杆塔设计..........................................................................................................................................596.1构...
