摘要
根据目前城区输电线路设计情况,按塔头挂线布置型式对比了线路走廊宽度和塔头高度,并分析了窄基钢管塔的适用性,按城市的不同地段,分析了220kV四回路窄基钢管塔的经济性。线路位于城市绿化带内时,窄基钢管塔较钢管杆节省投资约14%;线路位于城郊不拆房不跨房情况下,窄基钢管塔较常规角钢塔和钢管杆分别节省投资约5%和14%;线路位于城郊拆房情况下,窄基钢管塔较常规角钢塔和钢管杆分别节省投资约12%和6%。采用四回路窄基钢管塔较其他塔型具有明显的经济和社会效益。
According to the current urban transmission line design,the width of the line corridor and the height of the tower head are compared according to the hanging line layout of the tower head,and the applicability of the narrow base steel tube tower is analyzed.According to the different sections of the city,the economy of 220 kV four-circuit narrow base steel tube tower is analyzed.When the line is located in the urban green belt,the narrow base steel tube tower saves cost about 14% of the investment compared with the steel tube pole.When the line is located in the suburbs without demolishing houses or crossing houses,the investment of narrow base steel tube tower is about 5%and 14%less than that of conventional angle steel tower and steel tube pole.When the line is located in the suburb to demolish houses,the investment of narrow base steel tube tower is about 12%and 6%less than that of conventional angle steel tower and steel tube pole.Compared with other tower types,the adoption of four-circuit narrow base steel tube tower has obvious economic and social benefits.
引文
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