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class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="zyv7akr" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shhanshang/637408582819326860/1963102.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="qz3l27i" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>上海U型環(huán)哪里有賣,U型環(huán)</p><p><span>***更新：</span>2021-01-01 12:31:45</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="rv7rr3b" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海含商建設(shè)工程有限公司</a></p><p><span>聯(lián)系人：</span>朱瑩</p><p><span>郵箱: </span>Irene_zy516@163.com</p><p><span>電話: </span>13918191286</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://shhanshang.shop.88360.com</p><p><span>手機(jī): </span>021-58210069</p><p><span>地址: </span>上海市崇明區(qū)新河鎮(zhèn)新申路921弄2號(hào)L區(qū)228室(上海富盛經(jīng)濟(jì)開發(fā)區(qū))</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="wqnf2yp" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="vpmeln2" class="box"><p><p style="text-indent:25px">U型環(huán)強(qiáng)度計(jì)算：連接是一種松連接方式。在U型環(huán)與孔、雙板與單板之間總有一些間隙，因此U型環(huán)要承受彎矩(與U型環(huán)受剪切相比，彎矩居主要地位)故必須計(jì)算器抗彎強(qiáng)度。U型環(huán)的剪應(yīng)力為:Tp-U型環(huán)的許用剪應(yīng)力，N/mm2，U型環(huán)的常用材料鋼Q235、Q245，，上海U型環(huán)哪里有賣.可取Tp=80N/mm2;d-U型環(huán)的直徑，mm。P-作用在U型環(huán)上的外荷載，N。在外荷載P的作用下，并假定荷載通過孔板傳到U型環(huán)上，上海U型環(huán)哪里有賣，沿零件的寬度均勻分布，則U型環(huán)上所產(chǎn)生的彎矩為:M=2(24)兩支之間的距離，mm;l=1，上海U型環(huán)哪里有賣.05A經(jīng)熱鍍鋅后的鍛制件、沖壓件的外觀質(zhì)量:沖裁件的剪切斷面斜度偏差小于板厚的十分之一。U型環(huán)是一種供電線路上使用得兩端分別由掛環(huán)與掛板連接件組合構(gòu)成的U形U型環(huán)。上海U型環(huán)哪里有賣</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海U型環(huán)哪里有賣,U型環(huán)" src="https://tyunfile.71360.com/UploadFile/shhanshang/637408582819326860/1963102.png"></div><p style="text-indent:25px">當(dāng)高壓U型環(huán)用于海拔高度超過1000m時(shí)，其外絕緣應(yīng)按GB311.1的規(guī)定進(jìn)行校正，避免高壓U型環(huán)冰閃常見故障的方式積塵星少倒，V型高壓U型環(huán)串自潔性能較好。發(fā)生局部電弧時(shí)電離氣體易擴(kuò)散，冰閃電壓高。對(duì)微氣象、覆冰及重污區(qū)雙串高壓U型環(huán)，有選擇地進(jìn)行倒V型改造，效果良好"但投資較大且改造復(fù)雜，對(duì)U型環(huán)和導(dǎo)線的影響需考驗(yàn)?；蛳蛏a(chǎn)廠家定做上、中、下各有一片特大傘裙的合成高壓U型環(huán)?？勺钄啾?、污流的形成，直線單聯(lián)瓷高壓U型環(huán)上、中、下部加裝3個(gè)大帽瓶。對(duì)防鳥害也有一定效果，但防冰閃效果不如倒V改造，改造較復(fù)雜且投資較大。上海U型環(huán)哪里有賣U型環(huán)能夠在架空輸電線路中起到重要的作用。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海U型環(huán)哪里有賣,U型環(huán)" src="https://tyunfile.71360.com/UploadFile/shhanshang/637408583055479482/5611035.png"></div><p style="text-indent:25px">U型環(huán)是一種供電線路上使用得兩端分別由掛環(huán)與掛板連接件組合構(gòu)成的U形金具。U型環(huán)是線路上的通用金具，其制作是以熱鍍鋅的圓鋼鍛制而成，用途較廣，可以單獨(dú)使用，也可以兩個(gè)串裝使用。常作為架空電力線路和變電所聯(lián)結(jié)U型環(huán)串或鋼絞線與桿塔固定時(shí)用，連接時(shí)采用銷釘、眼孔和螺栓連接。U型環(huán)外形與卸扣很相似，但二者作用不同，卸扣是一種起吊用的鎖具，表面處理多是電鍍鋅，而U型環(huán)則是用于供電線路上的熱鍍鋅電力金具。U型環(huán)是用電檢查人員**的一種說法，說的就是U字形狀的導(dǎo)線電纜。</p><p style="text-indent:25px">U型環(huán)對(duì)絕緣護(hù)套、傘裙材料的要求:耐氣候性以防止臭氧、紫外光、潮濕、高低溫等方面弓|起的快速劣化;高耐漏電起痕和電蝕損性以防止形成導(dǎo)電通道和護(hù)套、傘裙的擊穿，應(yīng)滿足要求;U型環(huán)護(hù)套、傘裙材料的阻燃性和交流介電強(qiáng)度試驗(yàn)應(yīng)分別滿足要求;U型環(huán)護(hù)套、傘裙材料的憎水性應(yīng)滿足要求;U型環(huán)高抗撕裂強(qiáng)度以防止搬運(yùn)和安裝時(shí)損壞，其機(jī)械抗張、抗撕強(qiáng)度應(yīng)滿足要求。U型環(huán)高耐水解性以防止增大材料的導(dǎo)電率，傘套材料的體積電阻率應(yīng)符合要求。在大溫差范圍內(nèi)能保持高柔韌性，以防止在低溫和溫度急劇變化時(shí)弓|起裂紋或破裂。U型環(huán)的安裝應(yīng)與地平面垂直，其安裝距離允許偏差s+30mm。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海U型環(huán)哪里有賣,U型環(huán)" src="https://tyunfile.71360.com/UploadFile/shhanshang/637408582602940118/5965412.png"></div><p style="text-indent:25px">U型環(huán)應(yīng)滿足下列試驗(yàn)要求:吸水率小于0.05%；工頻干耐受電壓應(yīng)滿足相關(guān)要求；雷電沖擊耐受電壓不于90kV；拉伸強(qiáng)度不小于1000MPa；耐應(yīng)力腐蝕時(shí)間不小于96h，拉伸破壞負(fù)荷對(duì)比試驗(yàn)相差不超過10%；染色滲透試驗(yàn)應(yīng)滿足GB/T5892的要求；水?dāng)U散試驗(yàn)應(yīng)滿足GB/T5892的要求。電暈和無線電干擾水平：高壓U型環(huán)應(yīng)滿足電暈試驗(yàn)要求。在規(guī)定1.1Um/歷電壓下，高壓U型環(huán)的無線電干擾水平不應(yīng)大于60dB。耐漏電起痕及電蝕損不低于TMA4.5級(jí):抗撕裂強(qiáng)度不小于7kN/mDL/T864-2004機(jī)械扯斷強(qiáng)度不小于3MPa；拉斷神長(zhǎng)率不小于100%；邵氏硬度不小于500。U型環(huán)然后進(jìn)行熱浸鍍鋅，而內(nèi)螺紋可在熱浸鍍鋅前或后進(jìn)行加工。上海U型環(huán)哪里有賣</p><p style="text-indent:25px">U型環(huán)的鍛件、熱彎件沒有過燒、疊層、局部燒熔及氧化皮存在。上海U型環(huán)哪里有賣</p><p style="text-indent:25px">U型環(huán)材料新產(chǎn)品試制、定型或正常生產(chǎn)的產(chǎn)品，若產(chǎn)品具有相同的原料配方和工藝及直徑，那相關(guān)的各項(xiàng)試驗(yàn)*可進(jìn)行一次。*當(dāng)材料配方和工藝方法改變時(shí)，必須重新進(jìn)行全部項(xiàng)目的試驗(yàn)。新型式試驗(yàn)報(bào)告可由產(chǎn)品制造企業(yè)提供。補(bǔ)充試驗(yàn)：除應(yīng)進(jìn)行所規(guī)定的產(chǎn)品設(shè)計(jì)試驗(yàn)和型式試驗(yàn)項(xiàng)目外，宜進(jìn)行工頻電弧試驗(yàn)、人工污穢工頻電壓試驗(yàn)和機(jī)械振動(dòng)試驗(yàn)，人工污穢工頻耐受電壓試驗(yàn)和機(jī)械振動(dòng)試驗(yàn)*為供需雙方協(xié)商試驗(yàn)項(xiàng)目。均壓裝置：壓U型環(huán)端部應(yīng)有良好的屏蔽措施，應(yīng)正確選擇和使用均壓裝置。110kV及以下電壓等級(jí)產(chǎn)品可*在高壓端安裝一個(gè)均壓裝置，但高壓端均壓裝置與接地端應(yīng)滿足頗電弧對(duì)絕級(jí)子的要求。220kV及以上電壓等級(jí)產(chǎn)品在高壓端和接地端各安裝一個(gè)均壓裝置。上海U型環(huán)哪里有賣</p><p style="text-indent:25px">上海含商建設(shè)工程有限公司位于上海市崇明區(qū)新河鎮(zhèn)新申路921弄2號(hào)L區(qū)228室(上海富盛經(jīng)濟(jì)開發(fā)區(qū))，擁有一支專業(yè)的技術(shù)團(tuán)隊(duì)。專業(yè)的團(tuán)隊(duì)大多數(shù)員工都有多年工作經(jīng)驗(yàn)，熟悉行業(yè)專業(yè)知識(shí)技能，致力于發(fā)展汽輪機(jī)軸系檢修維護(hù),汽輪機(jī)轉(zhuǎn)子磨損修復(fù)的品牌。公司堅(jiān)持以客戶為中心、市政公用工程，管道工程，機(jī)電設(shè)備安裝、維修（除特種設(shè)備），化工產(chǎn)品及原料（除危險(xiǎn)化學(xué)品、監(jiān)控化學(xué)品、煙花爆竹、民用物品、易制毒化學(xué)品）、儀器儀表、五金交電、橡塑制品、建筑材料、裝潢材料、電子產(chǎn)品、日用百貨的銷售，機(jī)械設(shè)備技術(shù)領(lǐng)域內(nèi)的技術(shù)開發(fā)、技術(shù)轉(zhuǎn)讓、技術(shù)咨詢和技術(shù)服務(wù)。市場(chǎng)為導(dǎo)向，重信譽(yù)，保質(zhì)量，想客戶之所想，急用戶之所急，全力以赴滿足客戶的一切需要。上海含商建設(shè)工程有限公司主營業(yè)務(wù)涵蓋維修高壓主汽門、高壓調(diào)門，維修中壓主汽門、中壓調(diào)門，閥座的車削、堆焊、補(bǔ)焊，熱處理、研磨，堅(jiān)持“質(zhì)量保證、良好服務(wù)、顧客滿意”的質(zhì)量方針，贏得廣大客戶的支持和信賴。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2660004.html</p></div></div></div></div></div><div id="o7dyaht" class="page-right twoColRt"><div id="oia7um7" class="box01 margin10 clearfix"><h3><a 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