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clearfix"><h1>成都塔牌電纜批發(fā)廠家來電咨詢四川創(chuàng)世界建材供應</h1><div id="uca0qgc" class="proBig"><div id="aiqm2k8" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/sccsjjc/637261036571855469/9320146.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="g2kyeca" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/sccsjjc/637261036571855469/9320146.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="aious0i" class="content"><p><span>需求數量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>四川省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產品關鍵詞：</span>成都塔牌電纜批發(fā)廠家</p><p><span>***更新：</span>2020-06-03 13:18:33</p><p><span id="click" >瀏覽次數：0次</span></p><a rel="nofollow" class="button">聯系我們</a></div></div><div id="i0ousyw" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">四川創(chuàng)世界建材有限公司</a></p><p><span>聯系人：</span>曾經理</p><p><span>郵箱: </span>373793897@qq.com</p><p><span>電話: </span>18008052768</p><p><span>傳真: </span>028_</p><p><span>網址: </span></p><p><span>手機: </span>028-68867225</p><p><span>地址: </span>金府路555號萬貫五金機電市場25號配送大廳14/15/16號</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="8gw8c08" class="page-proshow02"><p class="title">詳細說明</p><div id="0msgomk" class="box"><p><p> 歐美，日本已經在民用電線中***推廣。我們國家也制定了相應的標準，如國家制定了GB/T19666-2005《阻燃和耐火電線電纜通則》，國家公安部制定了《阻燃及耐火電纜：塑料絕緣阻燃及耐火電纜分級和要求》，機械工業(yè)部制定了JB/T10491-2004《額定電壓450、750V及以下交聯聚合物絕緣電線和電纜》，上海市制定了工程建設規(guī)范DGJ08-93-2002J10166-2002）《民用建筑電線電纜防火設計規(guī)程》等系列標準，低無鹵阻燃電線已經在機場、地鐵、大型建筑、**工程中大量采用。它很好地解決了PVC裝修電線缺點，成都塔牌電纜批發(fā)廠家，無鹵、低、阻燃同時具備優(yōu)良的短路負載能力，是裝修時明智的選擇，我們相信，隨著人們的生活條件提高，成都塔牌電纜批發(fā)廠家，對健康，安全，成都塔牌電纜批發(fā)廠家，環(huán)保越來越重視，新型高性能環(huán)保型布電線***取代傳統(tǒng)PVC電線的日子將指日可待。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="成都塔牌電纜批發(fā)廠家" src="https://tyunfile.71360.com/UploadFile/sccsjjc/637261036571855469/9320146.png"></div><p> 是由多股銅絲相互絞合而成的多芯電線電纜，因而具有較好的柔軟性，可以較大幅度的彎曲而不容易發(fā)生斷裂，同時不容易損傷絕緣和護套。在線路要多個轉彎且幅度較大時，顯然使用BVR電線更好。同時，BVR電線的線芯多是由多股銅絲絞合而成，因此電流在電線電纜導體上流動的表面積更大，散熱性更好，載流量相比同規(guī)格型號的BV電線有些許的提高。但是，因導體過多，在進行接頭時，需進行鍍錫防氧化處理，一旦處理不當，容易造成日后接觸不良而造成發(fā)熱等。BVR聚氯乙烯絕緣多股銅芯軟導線，因線較軟，多用在活動用電場所、和臨時用電場所，安裝、拖放和移動方便。但使用壽命短，因總外園面積/總截面積的比值很大，氧化速度快?？偨Y電線bv和bvr的優(yōu)點和缺點：1、BV優(yōu)點：因線較硬，使用壽命長，不易氧化，一般多用于隱蔽工程中。缺點：導線彎曲后難以復直，多次反復彎曲拉直易受傷。2、BVR（也叫二次線）優(yōu)點：線較軟，多用在臨時用電場所，對于敷設角度的要求**降低，適合轉彎穿管。缺點：使用壽命短，氧化速度快，容易出現斷芯、局部發(fā)熱等需及時更換。3、BV是單銅芯聚乙烯線，BVR是多芯聚乙烯線，一個較硬，一個很軟，但是BVR比BV在相同截面積的情況下BVR的載流量大。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="成都塔牌電纜批發(fā)廠家" src="https://tyunfile.71360.com/UploadFile/sccsjjc/637261036650341797/4251199.png"></div><p> 在火災發(fā)生時PVC混合物在受熱后容易分解逸出大量有劇毒、有腐蝕性HCL（氯化氫）氣體，并產生大量的劇毒濃，造成重大的生命和財產損失，并給救援工作帶來很大的困難（如韓國地鐵大火）。為了盡量避免和減少火災及火災造成的二次傷害，人們經過十多年大量的研究發(fā)現，改變產品所用的外層材料和工藝，可以有效地解決問題。無鹵低阻燃電線電纜的主要特征為所有的材料中不含鹵素，且在燃燒時釋放的霧量很少。含鹵的電纜在火中釋放的毒性是很可怕的。如果把在30min可致人死亡的氣體濃度的毒性判定為1的話，那么聚氯乙烯的毒性**為，而無鹵聚合物的毒性**為?；馂臅r，強烈彌漫的濃使受害者辯不清方向，因而延長了在火中滯留的時間。據有關資料介紹，透光率為70%時，人的裸視分辨物象的能力只有5m左右。而聚氯乙烯燃燒時所發(fā)出的的透光率在15%以下，即人在此濃的里，其裸視距離*為2m左右。濃的另一個特征是隨熱氣流傳播異常迅速，速度可達20m/min以上。由此可見，采用無鹵低電線電纜對于確保安全至關重要。——此段引自上海市工程建設DGJ08-93-2002J10166-2002）《民用建筑電線電纜防火設計規(guī)程》。為此，世界先進國家紛紛推出無鹵低阻燃材料替代產同的PVC，并制定了相關的標準。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="成都塔牌電纜批發(fā)廠家" src="https://tyunfile.71360.com/UploadFile/sccsjjc/637261036713808594/9081795.png"></div></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/134337.html</p></div></div></div></div></div><div id="ge8gcye" class="page-right twoColRt"><div id="i200gcy" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div 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