电气系毕业设计--35kV输电线路

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1、 I 内容提要 本毕业设计以设计任务书为依据， 以国家经济建设的方针、 政策、 技术规定准绳， 结合工程实际情况，保证供电可靠，调度灵活，满足各项技术要求。 本次设计线路为 35kV 输电线路，其安全运行直接关系到供电的可靠性。本次输 电线路设计的主要内容在对应于一定的导线截面、地形条件、和气象条件的组合，计 算各气象条件和档距下导地线的应力及弧垂； 根据计算结果绘制应力弧垂曲线及安装 曲线指导工程施工； 制作弧垂曲线模板， 用弧垂曲线模板在平断面图上排定杆塔位置； 对线路的使用条件全面检查和校验，保证各使用条件在规定的允许范围内；根据所处 地区的土壤电阻率，合理铺设杆塔接地体，计算出线路耐雷

2、水平及雷击跳闸率。 本文主要根据现有的技术规程及资料对架空线路的防雷、金具及杆塔的原理、技 术方面进行论述，其主要内容为导线地线设计、金具设计、杆塔设计、基础设计、防 雷设计、编制铁塔施工技术手册。 关键词：35kV；线路设计；杆塔；接地 II Summary The graduate design book design is based on the yardstick of national economic construction principles, policies, technical requirements, combined with the actual situat

3、ion of the project, to ensure reliable power supply, flexible scheduling to meet the technical requirements. The design lines of 35kV transmission lines, and its safe operation is directly related to the reliability of power supply. The main content of the transmission line design corresponds to a c

4、ombination of certain cable cross sections, terrain conditions, and weather conditions in the calculation of the meteorological conditions and the span stress on cables and sag; draw stress sag curve based on the results and installation of the curve for engineering construction; production sag curv

5、e template, use the sag curve template scheduled in the flat cross-sectional view of the tower position; comprehensive inspection and verification of the conditions of use of the line to ensure that the respective conditions within the allowable range; soil resistivity from location to location, rea

6、sonable laying tower grounding line mine-resistant calculated the level and rate of lightning trip. In this paper, according to the existing technical regulations and information on overhead lines lightning, fittings and the tower principle, the technical aspects are discussed, and the main content of the wire-ground design, with design, tower design, basic design, mine design, the preparation of the tower construction technical manuals. Keywords: 35kV; circuit design; tower; groun 目 录 内容提要.I