机场限高区1 000kV轻冰区酒杯耐张塔的适用性研究OA

The clearance to ground and tower-height of 1 000 kV UHV single-circuit AC transmission line is large;in order to meet the requirement of the airport height restriction,the Cup-type towers for single-circuit tension towers in light ice areas is proposed.Based on a 1 000 kV transmission line project,the study first determines a reasonable value for the earthwire support height through the tower head configuration and design.Then,the optimized tower weight and cost indicator of the Cup-type tower are obtained by analyzing the influencing factors such as tower body-gap sizes and slope values,and a comparison is made with conventional Gan-type tension towers;Finally,the engineering applicability of Cup-type tension towers is researched,and the boundary conditions for the potential replacement of conventional Gan-type tension towers are suggested,which provides a basis for the subsequent project design of the height restriction areas.