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class="content"><p><span>需求數(shù)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(chǎn)品關(guān)鍵詞：</span>瀘州電線電纜推薦廠家,電線電纜</p><p><span>***更新：</span>2020-12-22 02:05:19</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="an8ctah" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">成都皖川科技有限公司</a></p><p><span>聯(lián)系人：</span>朱成生</p><p><span>郵箱: </span>cdwckjgs@sina.com</p><p><span>電話: </span>18755046999</p><p><span>傳真: </span>028_87463776</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>028-87463776</p><p><span>地址: </span>四川省成都市青羊區(qū)青羊萬達廣場SOHO公寓2-2-1138室</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="p8ofrd8" class="page-proshow02"><p class="title">詳細說明</p><div id="eipyp78" class="box"><p><p style="text-indent:25px">超負荷運行，由于電流的熱效應(yīng)，負載電流通過電纜時必然導(dǎo)致導(dǎo)體發(fā)熱，同時電荷的集膚效應(yīng)以及鋼鎧的渦流損耗、絕緣介質(zhì)損耗也會產(chǎn)乍附加熱量，從而使電纜溫度升高。長期超負荷運行時，過高的溫度會加速絕緣的老化，以至絕緣被擊穿，瀘州電線電纜推薦廠家。尤其在炎熱的夏季，電纜的溫升常常導(dǎo)致電纜絕緣薄弱處首先被擊穿，因此在夏季，電纜的故障也就特別多。電纜接頭是電纜線路中蕞薄弱的環(huán)節(jié)，由人員直接過失(施工不良)引發(fā)的電纜接頭故障時常發(fā)生。施工人員在制作電纜接頭過程中，如果有接頭壓接不緊，瀘州電線電纜推薦廠家、加熱不充分等原網(wǎng)，瀘州電線電纜推薦廠家，都會導(dǎo)致電纜頭絕緣降低，從而引發(fā)事故。瀘州電線電纜推薦廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="瀘州電線電纜推薦廠家,電線電纜" src="http://tyunfile.71360.com/UploadFile/cdwckj/637064055704951172/31284.jpg"></div><p style="text-indent:25px">1、每臺計算機耗電約為200～300W(約1～1.5A)，那么10臺計算機就需要一條2.5平方毫米的銅芯電線供電，否則可能發(fā)生火災(zāi)。 2、大3匹空調(diào)耗電約為3000W(約14A)，那么1臺空調(diào)就需要單獨的一條2.5平方毫米的銅芯電線供電。 3、現(xiàn)在的住房進線一般是4平方毫米的銅線，因此，同時開啟的家用電器不得超過25A(即5500瓦)，有人將房屋內(nèi)的電線更換成6平方毫米的銅線是沒有用處的，因為進入電表的電線是4平方毫米的。 4、早期的住房(15年前)進線一般是2.5平方毫米的鋁線，因此，同時開啟的家用電器不得超過13A(即2800瓦)。瀘州電線電纜推薦廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="瀘州電線電纜推薦廠家,電線電纜" src="http://tyunfile.71360.com/UploadFile/cdwckj/637064055705166016/6340643.jpg"></div><p style="text-indent:25px">例如鋁芯絕緣線，環(huán)境溫度為不大于25℃時的載流量的計算：當截面為6平方毫米時，算得載流量為30安；當截面為150平方毫米時，算得載流量為300安；當截面為70平方毫米時，算得載流量為175安；從上面的排列還可以看出：倍數(shù)隨截面的增大而減小，在倍數(shù)轉(zhuǎn)變的交界處，誤差稍大些。比如截面25與35是四倍與三倍的分界處，25屬四倍的范圍，它按口訣算為100安，但按手冊為97安；而35則相反，按口訣算為105安，但查表為117安。不過這對使用的影響并不大。當然，若能“胸中有數(shù)”，在選擇導(dǎo)線截面時，25的不讓它滿到100安，35的則可略為超過105安便更準確了。同樣，2.5平方毫米的導(dǎo)線位置在五倍的始端，實際便不止五倍（比較大可達到20安以上），不過為了減少導(dǎo)線內(nèi)的電能損耗，通常電流都不用到這么大，手冊中一般只標12安。</p><p style="text-indent:25px">耐高溫（阻燃）電力電纜特性： 1、額定電壓U0/U：0.6/1kv 2、電纜允許工作溫度：氟塑料絕緣及護套為200℃；氟塑料絕緣耐熱105聚氯乙烯護套為105℃；氟塑料絕緣硅橡膠護套為180℃。 3、短路時（持續(xù)不超過5S）電纜導(dǎo)體的溫度不超過250℃。 4、電纜敷設(shè)溫度應(yīng)不低于-15℃。 5、電纜敷設(shè)時的彎曲半徑規(guī)定如下：單芯電纜：其彎曲半徑不小于電纜外徑的**；三芯電纜：其彎曲半徑不小于電纜外徑的15D。 6、氟塑料絕緣及護套型電力電纜具有優(yōu)異的耐化學腐蝕性、耐高溫及阻燃性。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="瀘州電線電纜推薦廠家,電線電纜" src="http://tyunfile.71360.com/UploadFile/cdwckj/637064055704902344/2705127.jpg"></div><p style="text-indent:25px">電纜直接埋在有酸堿作用的地區(qū)，往往會造成電纜的鎧裝、鉛皮或外護層被腐蝕，保護層因長期遭受化學腐蝕或電解腐蝕，致使保護層失效，絕緣降低，也會導(dǎo)致電纜故障?；簡挝坏碾娎|腐蝕情況就相當嚴重。這種情況也很常見，一般發(fā)生在直埋或排管里的電纜接頭處。比如：電纜接頭制作不合格和在潮濕的氣候條件下做接頭，會使接頭進水或混入水蒸氣，時間久了在電場作用下形成水樹枝，逐漸損害電纜的絕緣強度而造成故障。由近幾年的運行分析來看，尤其是在經(jīng)濟高速發(fā)展中的現(xiàn)在，現(xiàn)在相當多的電纜故障都是由于機械損傷引起的。瀘州電線電纜推薦廠家</p><p style="text-indent:25px">瀘州電線電纜推薦廠家</p><p style="text-indent:25px">若鋁芯絕緣線明敷在環(huán)境溫度長期高于25℃的地區(qū)，導(dǎo)線載流量可按上述口訣計算方法算出，然后再打九折即可；當使用的不是鋁線而是銅芯絕緣線，它的載流量要比同規(guī)格鋁線略大一些，可按上述口訣方法算出比鋁線加大一個線號的載流量。如16mm’銅線的載流量，可按25mm2鋁線計算。計算電纜載流量選擇電纜（根據(jù)電流選擇電纜）：導(dǎo)線的載流量與導(dǎo)線截面有關(guān)，也與導(dǎo)線的材料、型號、敷設(shè)方法以及環(huán)境溫度等有關(guān)，影響的因素較多，計算也較復(fù)雜。各種導(dǎo)線的載流量通?？梢詮氖謨灾胁檎?。但利用口訣再配合一些簡單的心算，便可直接算出，不必查表。瀘州電線電纜推薦廠家</p><p style="text-indent:25px">成都皖川科技有限公司致力于儀器儀表，是一家貿(mào)易型公司。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個細節(jié)，公司旗下耐磨熱電偶，氣體檢測儀器，便攜式氣體報警控制器，雙金屬溫度計深受客戶的喜愛。公司從事儀器儀表多年，有著創(chuàng)新的設(shè)計、強大的技術(shù)，還有一批**的專業(yè)化的隊伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。在社會各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗，為客戶成功提供堅實有力的支持。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2504228.html</p></div></div></div></div></div><div id="zxe3nzq" class="page-right twoColRt"><div id="cwyce3b" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="nmtf8es" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="ixzqxev" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img 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