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毕业设计(论文)课题名称TH220kV线路初步设计学生姓名赵家声学号1041201024系、年级专业电气工程系、10级电气工程及其自动化（输电线路）指导教师邹长春职称助教2014年5月17日邵阳学院毕业设计（论文）I摘要本设计为220kV输电线路初步设计，初步设计是工程设计的重要阶段，主要的设计原则，都在初步设计中明确，其设计内容均应作出安全可靠、技术经济合理的设计方案，进行优选。设计必须做到技术进步，并从实际出发，结合国情和地区特点，积极慎重的采用成熟的技术。初步设计中首先要确定导线的型式，如导线截面的选择；其次是确定设计气象条件，确定导线应力、安全系数、平均运行能力，作出导线力学特性曲线；然后是说明杆塔选用原则，选用杆塔型式，列出杆塔一览表。当然还有，根据不同的地质、地形、运输、荷载条件选择基础形式；选择塔头空间气隙，确定塔头尺寸；绝缘子型式、片数、防雷防振措施；对通信线路的影响。关键字：气象条件；杆塔型式；防雷防振邵阳学院毕业设计（论文）IIAbstractThroughthesinglecircuit220kVoverheadtransmissionlinedesign,tra-iningstudentstousethebasictheoriesandmethodslearnedtosolvepracticalproblemsandimprovestudents'practicalskillsandanalyticalthinkingabilityandoverallabilitytoapplyknowledgetoenablestudentstomasterthellitera-turesearchinspectionanalysisthebasicmethodstoimprovestudents'readingforeignlanguagebooksandscientificresearchcapabilities.Tomakethebodyofoverheadpowerlinesbepoweredmachinesafe,reliable,advancedskills,economicrationality,easeofconstructionandrepairandmaintenance,mustconscientiouslyimplementthetechnicalandeconomicpolicyofthestate,inlinewiththedevelopmentplan,activelyprudentuseofnewtechnologies,ne-wmaterials,newequipment.Consideringthefactorsrun,construction,trafficconditions,etc.,integrated,comprehensivearrangementtocomparemultiplesolutions,soeconomicalandsafetoapply.Overheadlinedesignmustproce-edfromreality,combinedwithregionalcharacteristics,towerdesignusingli-mitstatedesignmethodbasedonthetheoryofprobability,reliabilityindexmeasureofstructuralmemberswithreliabilityundervariousprovisionscont-ainedcombinedeffectofextremeconditions,safeoperationofthelinemeetthecriticalcondition.Keywords:Weatherconditions;towertype;lightninganti-vibration;目录摘要..........................................................................................................................IAbstract.....................................................................................................................II1.工程概述..............................................................................................................12.导线设计..............................................................................................................22.1导线的比载........................................................................................................22.2导线的机械物理特性........................................................................................42.3临界档距与控制气象条件................................................................................42.4计算应力弧垂的MATLAB程序.....................................................................62.5各种气象条件下的应力弧垂............................................................................72.6安装曲线............................................................................................................83.地线设计............................................................................................................103.1地线的比载......................................................................................................103.2地线的机械物理特性......................................................................................123.3确定控制气象条件..........................................................................................123.4计算临界档距..................................................................................................123.5计算应力弧垂的MATLAB程序...................................................................133.6各种气象条件下的应力弧垂..........................................................................143.7安装曲线..........................................................................................................154.绝缘子及金具的选择........................................................................................164.1污秽区的划分及绝缘子选型..........................................................................164.2绝缘子片数的确定..........................................................................................164.3绝缘子串的安全系数和联数..........................................................................174.4导线金具选型和组装......................................................................................194.5地线金具选型和组装......................................................................................205.杆塔定位............................................................................................................235.1杆塔定位的原则..............................................................................................235.2杆塔形式选择..................................................................................................235.3判断导线的最大弧垂出现的气象条件.........................................................245.4定位用弧垂模板的制作与使用.....................................................................245.5弧垂曲线模版的杆塔定位校验.....................................................................285.6水平档距和垂直档距的计算及高差的测量.................................................296.杆塔塔头荷载计算及校验................................................................................306.1塔头荷载计算.........................................................................