220kV架空线路设计_毕业设计论文.doc

摘 要 本设计拟从马坝变电站新建一条220kV的送电线路向大良变电站供电。由已知的气象条件、地理情况、材料参数等对线路进行设计，设计书包括说明书、计算书、杆塔与金具示意图三部分，主要内容有导线的应力、弧垂计算、杆塔型式和金具的选择、选线和定位、直线杆塔荷载的计算、基础设计、各种受力的校验、导线的防震设计等，说明书中简要说明了设计理论和计算公式，列出了详细的设计内容及要求。 关键词 送电线路，应力弧垂，杆塔定位，基础设计 Abstract A new transmission line will be built to transmit electricity from MABA substation to DALIANG ，its voltage is 220kV. We made the design book on the base of the known condition that are meteorological situation the geography condition of line electrical material and its parameter and so on.The design book included three parts , they are the direction book, the counting book , the picture of pole and the fittings of pole. The main context of the transmission line design included these aspects: the counting of stress and sag height of conductor, The selection of support and fittings, Selecting electric line and fixed position of pole, The pole’s load calculation and the foundation design, The vibration design of wires. The synopsis explained the design theories and the calculation formulas in the manual, listing the detailed design contents and requesting, regulation. Key Words Power transmission line， Stress camber，position fixing of pole, foundation design 目 录 摘要…………….……………………………………………..……….….……..…...…. I Abstract……………………………….……………………………….…...…..….….…I 1 绪论………….………………….……………..…………....…….…....…….….....…1 1.1 设计课题的意义、目的...............………………….………..…….…..…….………1 1.2 毕业设计内容及要求........……………………….……………...…………....……1 2 毕业设计说明书…..………………..…….…………………………….…….……....2 2.1 线路工程概况……..……………………………………………….……..………...2 2.2 导线避雷应力弧垂计算…………………………...……………………….……....2 2.3 杆塔型式的选择…………..………………….………………………….....……....8 2.4 绝缘子及金具的选择……..………………….…………………………...…..…....8 2.5 室内排杆定位………………..……………….………………………….......…....13 2.6 线路的防振设计………..……………………………………………......…..…....15 2.7 杆塔头部尺寸校核…………………………….………………………...…..…....16 2.8 杆塔荷载计算……………………………….………………………….....……....22 2.9 耐张塔内力计算……………………………….………………….....……....25 2.10 基础的稳定性设计……………………….……………………………...……....27 2.11 本章小结……………………….………………