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"//m.sheji456.com/ask/tlist/676474" } [12] => array(11) { ["tagname"] => string(18) "家庭线路安装" ["inlink"] => int(0) ["addtime"] => string(10) "1593420477" ["tagid"] => int(11801) ["id"] => string(5) "11801" ["depart"] => string(1) "0" ["updatetime"] => int(0) ["status"] => int(99) ["_version_"] => int(1703503908984324112) ["pageurl"] => string(34) "//www.sheji456.com/ask/tlist/11801" ["m_pageurl"] => string(32) "//m.sheji456.com/ask/tlist/11801" } [13] => array(11) { ["tagname"] => string(18) "线路安装规范" ["inlink"] => int(0) ["addtime"] => string(10) "1593575004" ["tagid"] => int(254487) ["id"] => string(6) "254487" ["depart"] => string(1) "0" ["updatetime"] => int(0) ["status"] => int(99) ["_version_"] => int(1703503918847229962) ["pageurl"] => string(35) "//www.sheji456.com/ask/tlist/254487" ["m_pageurl"] => string(33) "//m.sheji456.com/ask/tlist/254487" } [14] => array(11) { ["tagname"] => string(18) "避雷器生产厂" ["inlink"] => int(0) ["addtime"] => string(10) "1594371892" ["tagid"] => 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谁知道220kv线路避雷器安装方案？

谁知道220kv线路避雷器安装方案？

浏览：81次 | 提问时间： 07-29 05:49

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兽ゅ 07-29 05:49

（1）准备工作①核实避雷针高度及分段钢筋架之间的对应安装位置。②平整场地，把枕木均匀地摆到避雷针组装地点。避雷针每段钢筋架下设两个支点，并大致找平。③核实预埋螺栓与避雷针底座螺孔尺寸，允许误差为±2mm。检查预埋螺栓露出基础面高度是否符合规定。（2）避雷针组装①把避雷针各段钢筋架顺序摆到枕木上，使三根主筋相互对准。②调整三根主筋使之分别在三条直线上。此项工作要反复进行，直到调直为止。③在避雷针钢筋架每条主筋之间的连接处对称放置2根连接圆钢（加强筋），连接圆钢规格应与下段钢筋架主筋一致，具体选用见表4。④焊接避雷针钢筋架之间的连接圆钢。除去焊渣，刷涂防锈漆和调和漆各两道。（3）组立及调整①在避雷针根部用铁线绑扎1~2根枕木，作为配重，以减小避雷针起吊时的倾斜度。②在避雷针绑扎吊绳的钢结构部位绑扎2~3根杉木杆。③在避雷针的适当位置栓绑吊绳和晃绳，尔后进行起吊、就位。④避雷针就位后应及时拧紧底座螺栓，然后摘掉吊钩，拆除吊绳、晃绳、杉木杆和枕木。⑤用线坠分别对避雷针三个棱边进行垂直度检查。如不垂直可在避雷针底座与基础面之间加入垫铁进行调整。⑥紧固避雷针底座连接螺栓并施加防松措施。（4）基础抹帽1）检查接地线及投光灯电缆保护管是否按施工图要求敷设并焊接可靠。2）清理避雷针基础面及底座上的杂物，并用水冲洗干净。3）用150#混凝土抹帽，顶部呈球面状，球面最高点至基础面高度为200mm，以能覆盖基础螺栓为宜，并要求光滑、易散水。4）覆盖草袋，浇水进行养护。5）填写安装技术记录。

焚 07-29 05:58

这个还需问专业人士比较保险，线路避雷器是降低线路雷击跳闸率和事故率的有效手段．但由于全线装设投资的成本较大，故提出以雷击跳闸情况、雷电参数统计分析、地形地貌分析、防雷计算分析为思

旧爱Revew 07-29 06:06

施工方法1、停电后，首先必须做好保证安全的技术措施。验电后挂接地线，然后再按以下方法及顺序逐项完成工作：2、依据各回路的安装明细表和工作票中所列的杆塔号，检查已运到杆塔位置的线路避雷器型号及数量是否安装要求，若有不符者必须更换，确保安装质量。在检查线路避雷器的同时，必须认真检查已运至杆塔位置的工器具是否完好，该项检查工作必须由各杆塔位置的工作负责人进行。在杆塔上安装好线路避雷器的固定支架后，再用绳索将线路避雷器逐只栓牢缓缓吊至杆塔上所需安装的位置，在起吊过程中，必须有附拉绳以防在起落过程中碰伤。在杆塔上下安全工作监护人的监护下固定好每只线路避雷器，并进行自检消缺完成工作。在转角30˚以上的耐张塔外角侧安装线路避雷器时，必须先将现有的跳线串拆除后才能进行此项工作。所拆跳线串必须使用绳索栓牢缓缓落至地面。在杆塔上的*作人员在完成安装工作后，必须在安全工作监护人的监护下撤离工作点，严禁进入带电侧的横担！结束该工作点的工作。通知工作负责人做好现场记录。各作业点的*作人员在完成安装工作撤离前，必须要认真检查该作业点及其附近是否还有被遗漏的工器具及绳索。待全线各个作业点的安装工作全部完成以及各个作业点的高空人员全部下塔撤离后，由工作负责人下令拆除工作区两端及其中间的所有接地线装置，认真做好现场记录，并核对所拆接地线的数量是否与开工前所做的安全技术措施时的数量一致。若有疑问，必须要查明原因，待落实清楚后方可结束工作。

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