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background-position: 50% 0px; background-repeat: no-repeat; width: 1920px; "></li> </ul> </div> </div> </div> <div id="b5vvlx0gzfh" class="blank-area"></div> </div> <div id="b5vvlx0gzfh" class="main"> <div id="b5vvlx0gzfh" class="location"><span>你的位置：<a href="/">首頁</a>> <a>如何計算金聯(lián)宇電纜的平方大??？</a></span></div> <div id="b5vvlx0gzfh" class="right"> <div id="b5vvlx0gzfh" class="show"> <div id="b5vvlx0gzfh" class="show_content2">  <div style="font-size:12px; font-family:Arial, Helvetica, sans-serif;"> <div style=" font-size:12px;">發(fā)布時間：<font color="#666666">2023.05.19</font> 瀏覽次數(shù)：<font color="#666666"> <script language="javascript" src="HitCount.Asp?id=117&LX=liangjing_News"></script> <script language="javascript" src="HitCount.Asp?action=count&LX=liangjing_News&id=117"></script> </font> <strong><a>廣東金聯(lián)宇電纜實業(yè)有限公司</a></strong> </div> <div style="line-height:30px;"> <div style="margin:0px;padding:0px;"> <div style="margin:0px;padding:0px;"> <div style="margin:0px;padding:0px;">如何計算金聯(lián)宇電纜的平方大??？</div> <div style="margin:0px;padding:0px;"> </div> <div style="margin:0px;padding:0px;"><img src="/uploadfile/image/202305191026.jpg" alt="金聯(lián)宇電纜" width="800" height="600" /></div> <div style="margin:0px;padding:0px;"> </div> <div style="margin:0px;padding:0px;">電線的平方怎樣核算？其實這個問題所說的便是電線的截面積是多少平方米。詳細(xì)便是截面積怎樣核算？這兒的平方，指的是平方毫米，咱們一定要記住，千萬不能說成平方米。例如咱們所說的2.5的電線，其實指的是截面積是2.5平方毫米的導(dǎo)線，以此類推。所以說這兒電線的平方指的便是電線的截面積。可是電線的截面積其實是不必核算的。為什么這么說呢？咱們能夠經(jīng)過以下四點來了解。</div> <div style="margin:0px;padding:0px;">①、電線的線徑都是承認(rèn)的。不管咱們購買的是哪一種截面積的導(dǎo)線，其實它的導(dǎo)線的線芯的直徑一般都是承認(rèn)的。例如咱們最常見的1.5平方毫米的銅芯導(dǎo)線，它的銅芯的導(dǎo)體直徑大概是1.38mm。又例如咱們常見的2.5平方毫米的銅芯導(dǎo)線，它的銅芯的導(dǎo)體直徑大概是1.78平方毫米。所以說，每一種不同的截面積的電線或者是電纜，它所對應(yīng)的導(dǎo)體直徑一般都是承認(rèn)的，是不必核算的。</div> <div style="margin:0px;padding:0px;">②、電線的截面積其實是經(jīng)過兩大部分來組成的。榜首大部分便是導(dǎo)體的直徑，第二大部分是絕緣層的厚度。所以咱們購買了對應(yīng)截面積的電線，其實它的截面積也就對應(yīng)就承認(rèn)了。例如咱們購買的是1.5平方毫米的銅芯導(dǎo)線，咱們丈量一下這根導(dǎo)線的電線的外徑大概是5.79mm。又例如咱們購買的是2.5平方毫米的銅芯導(dǎo)線，那么此刻丈量一下這根電線的外徑大概是6.18mm。當(dāng)然了，這兒要根據(jù)咱們所購買的電線的絕緣層來進(jìn)行判別。絕緣層的不同，它的外徑也是不同的。</div> <div style="margin:0px;padding:0px;">③、電線的截面積與之對應(yīng)的其實是載流量。也便是其能夠安全經(jīng)過的電流。其實這才是咱們挑選電線巨細(xì)的一個要害。也便是說咱們挑選電線的平方數(shù)的時分，所根據(jù)的應(yīng)該是導(dǎo)線的載流量。例如咱們核算出來某個回路的電流是20A，那么咱們再承認(rèn)好導(dǎo)線的敷設(shè)條件今后，就能夠來挑選對應(yīng)的電線了。例如明裝條件下，個人主張咱們就挑選2.5平方毫米的銅芯導(dǎo)線。這樣咱們所需求的電線的截面積其實就選定了。</div> <div style="margin:0px;padding:0px;">④、假如咱們要核算導(dǎo)線的截面積的時分，其實咱們也是能核算出來導(dǎo)線的截面積。例如咱們核算2.5平方毫米銅芯導(dǎo)線的截面積。那么首要咱們要丈量出來銅芯導(dǎo)線的直徑，例如咱們丈量出來是1.76mm，然后再利用面積的核算公式，也便是πrr，也便是3.14×0.88×0.88。終究咱們得到的成果便是咱們所學(xué)核算的這根2.5平方米導(dǎo)線的截面積。例如咱們此刻核算出來成果大概是2.43平方毫米。</div> </div> </div> </div> <div id="b5vvlx0gzfh" class="mm">本文共分 <a rel="nofollow" href="NewsView.Asp?ID=117&page=0"><font 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