自貢電線電纜推薦服務(wù)至上成都皖川科技供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="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(dāng)截面為6平方毫米時，算得載流量為30安；當(dāng)截面為150平方毫米時，算得載流量為300安；當(dāng)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，"><meta name="keywords" content="自貢電線電纜推薦,電線電纜"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta 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href="http://www.cdcfah.com/cp/third-gydqew_gykggek/">高壓開關(guān)柜</a>?自貢電線電纜推薦服務(wù)至上成都皖川科技供應(yīng)</p><div id="413j7hd" class="leftbox clearfix"><h1>自貢電線電纜推薦服務(wù)至上成都皖川科技供應(yīng)</h1><div id="jtq3vxz" class="proBig"><div id="aeu3z22" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/cdwckj/637064055704599610/2340535.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="732zo79" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/cdwckj/637064055704599610/2340535.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="5gbd8ub" 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>自貢電線電纜推薦,電線電纜</p><p><span>***更新：</span>2020-08-02 06:16:15</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="o89yaah" 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(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="m9xnv8k" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="fmebdht" class="box"><p><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(dāng)截面為6平方毫米時，算得載流量為30安；當(dāng)截面為150平方毫米時，算得載流量為300安；當(dāng)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(dāng)然，自貢電線電纜推薦，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，自貢電線電纜推薦，35的則可略為超過105安便更準(zhǔn)確了，自貢電線電纜推薦。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(biāo)12安。自貢電線電纜推薦</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="自貢電線電纜推薦,電線電纜" src="http://tyunfile.71360.com/UploadFile/cdwckj/637064055704599610/2340535.jpg"></div><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(xué)腐蝕性、耐高溫及阻燃性。廣安電線電纜廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="自貢電線電纜推薦,電線電纜" src="http://tyunfile.71360.com/UploadFile/cdwckj/637064055704902344/2705127.jpg"></div><p style="text-indent:25px">穿管、溫度，八、九折”是指：若是穿管敷設(shè)（包括槽板等敷設(shè)、即導(dǎo)線加有保護套層，不明露的），計算后，再打八折；若環(huán)境溫度超過25℃，計算后再打九折，若既穿管敷設(shè)，溫度又超過25℃，則打八折后再打九折，或簡單按一次打七折計算。關(guān)于環(huán)境溫度，按規(guī)定是指夏天**熱月的平均比較高溫度。實際上，溫度是變動的，一般情況下，它影響導(dǎo)線載流并不很大。因此，只對某些溫車間或較熱地區(qū)超過25℃較多時，才考慮打折扣。例如對鋁心絕緣線在不同條件下載流量的計算：當(dāng)截面為10平方毫米穿管時，則載流量為10×5×0.8═40安；若為高溫，則載流量為10×5×0.9═45安；若是穿管又高溫，則載流量為10×5×0.7═35安。</p><p style="text-indent:25px">超負(fù)荷運行，由于電流的熱效應(yīng)，負(fù)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(fù)荷運行時，過高的溫度會加速絕緣的老化，以至絕緣被擊穿。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、加熱不充分等原網(wǎng)，都會導(dǎo)致電纜頭絕緣降低，從而引發(fā)事故。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="自貢電線電纜推薦,電線電纜" src="http://tyunfile.71360.com/UploadFile/cdwckj/637064055704824219/8908406.jpg"></div><p style="text-indent:25px">5、耗電量比較大的家用電器是：空調(diào)(1.2匹)，電熱水器，微波爐，電飯煲，洗碗機，帶烘干功能的洗衣機十A，電開水器四A在電源引起的火災(zāi)中，有90％是由于接頭發(fā)熱造成的，因此所有的接頭均要焊接，不能焊接的接觸器件5～10年必須更換(比如插座、空氣開關(guān)等)。銅芯電線電纜載流量標(biāo)準(zhǔn)電纜載流量口決：估算口訣：二點五下乘以九，往上減一順號走。三十五乘三點五，雙雙成組減點五。條件有變加折算，高溫九折銅升級。穿管根數(shù)二三四，八七六折滿載流。資陽電線電纜哪家專業(yè)</p><p style="text-indent:25px">自貢電線電纜推薦</p><p style="text-indent:25px">廣義的電線電纜亦簡稱為電纜。狹義的電纜是指絕緣電纜。它可定義為：由下列部分組成的**體，一根或多根絕緣線芯，以及它們各自可能具有的包覆層，總保護層及外護層。電纜亦可有附加的沒有絕緣的導(dǎo)體。我國的電線電纜產(chǎn)品按其用途分成下列五大類： 1.裸電線； 2.繞組線； 3.電力電纜； 4.通信電纜和通信光纜； 5.電氣裝備用電線電纜。電線電纜的基本結(jié)構(gòu)： 1.導(dǎo)體：傳導(dǎo)電流的物體,電線電纜的規(guī)格都以導(dǎo)體的截面表示。 2.絕緣：外層絕緣材料按其耐受電壓程度。自貢電線電纜推薦</p><p style="text-indent:25px">成都皖川科技有限公司創(chuàng)立于2011-12-30，是一家貿(mào)易型公司。成都皖川科技致力于為客戶提供質(zhì)量的[ "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" ]，一切以用戶需求為中心,深受廣大客戶的歡迎。公司秉持誠信為本的經(jīng)營理念，在儀器儀表深耕多年，以技術(shù)為先導(dǎo)，以自主產(chǎn)品為**，發(fā)揮人才優(yōu)勢，打造儀器儀表質(zhì)量品牌。公司憑借深厚技術(shù)支持，年營業(yè)額度達到50-100萬元，并與多家行業(yè)**公司建立了緊密的合作關(guān)系。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/780898.html</p></div></div></div></div></div><div id="jy7jgik" class="page-right twoColRt"><div id="x3ppheg" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3houw74" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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