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class="ctext" style="padding-top:8px;border:solid 1px #dddddd; background-color:#f3f1f2; width:99%;"> <ul class="indexleft-list"> <div><span style="font-weight: bold;">上海科迎法電氣有限公司　</span></div> <div><span style="font-size: 9pt;">電話：021-64822327 64822118<br>???????????????67881109 67881107<br>郵箱：67881109@kyfbest.com</span></div> <div>郵箱：476294094@kyfbest.com</div> <div>郵箱：18701876288@kyfbest.com</div> <div>地址：上海松江高科技工業園淶寅路<br>1881號5號樓2層</div> <div>郵編：201615</div> <div>網站：www.translation-shanghai.com<br>?????????www.best5858.com</div> <div><br></div> </ul> </div> </div> <div id="nrnvhrl" class="contRight"> <div id="bfpvfl7" class="conNeiRong"> <div id="7vfxjfp" class="conNeiTitle" style="text-indent:10px;"> <span id="r5znzjd" class="conNeiTitle-span1"><span></span>行業新聞</span> <span id="7tr57nf" class="conNeiTitle-span2">當前位置:<a href='http://www.translation-shanghai.com/'>主頁</a> > <a href='http://www.translation-shanghai.com/news/'>新聞中心</a> > <a href='http://www.translation-shanghai.com/news2/'>行業新聞</a> > </span> </div> <div id="dhvdp7h" class="conNeiText"> <div style=" text-align:left; float:left; margin:0px; padding:0px auto; width:98%;min-height:565px; margin-left:8px;"> <h1 class="title" style="margin-top:10px; margin-left:10px; text-align:center; line-height:35px;">航空插頭電氣參數四大要素</h1> <div id="rhpjtz5" class='search2' style='text-align:center; border-top:dotted 1px #999; margin-top:10px; padding-top:10px;'><strong>發布時間: </strong>2018-10-30　瀏覽次數: ?</div> <div id="vbphjrn" class="newp" style=" width:98%; padding:8px;"> <p style="margin: 5px 0px; color: rgb(0, 0, 0); font-family: sans-serif; font-size: 16px; text-indent: 2em; line-height: 2em;"> <span style="font-size: 14px;">航空插頭電氣參數四大要素是什么？無論在選擇<strong><a href="http://www.translation-shanghai.com/"><span style="color:#ff0000;">航空插頭</span></a></strong>還是始終過程中，務必要清楚的了解這4點，才可以高效的使用它，今天科迎法電氣就和大家來詳細講解一下。希望對大家有所幫助！</span></p> <p style="margin: 5px 0px; color: rgb(0, 0, 0); font-family: sans-serif; font-size: 16px; text-indent: 2em; line-height: 2em;"> <span style="font-size: 14px;"><strong>1、額定電壓</strong> 它主要取決于航空插頭所使用的絕緣材料，接觸之間的間距大小。某些元件或裝置在低于其額定電壓時，可能不能完成其應有的功能。原則上說，航空插頭在低于額定電壓下都能正常工作。按照使用環境，安全等級要求來合理選用額定電壓。</span></p> <p style="margin: 5px 0px; color: rgb(0, 0, 0); font-family: sans-serif; font-size: 16px; text-indent: 2em; line-height: 2em;"> <span style="font-size: 14px;"><strong>2、額定電流</strong> 同額定電壓一樣，在低于額定電流情況下，航空插頭一般都能正常工作。在航空插頭的設計過程中，是通過對航空插頭的熱設計來滿足額定電流要求的，因為在接觸對有電流流過時，由于存在導體電阻和接觸電阻，接觸對將會發熱。當其發熱超過一定極限時，將破壞航空插頭的絕緣和形成接觸對表面鍍層的軟化，造成故障。因此，要限制額定電流，事實上要限制<strong><a href="http://www.translation-shanghai.com/"><span style="color:#ff0000;">航空插頭</span></a></strong>內部的溫升不超過設計的規定值。在選擇時要注意的問題是：對多芯航空插頭而言，額定電流必須降額使用。</span></p> <p style="margin: 5px 0px; color: rgb(0, 0, 0); font-family: sans-serif; font-size: 16px; text-indent: 2em; line-height: 2em;"> <span style="font-size: 14px;"><strong>3、接觸電阻</strong> 接觸電阻是指兩個接觸導體在接觸部分產生的電阻。在選用時要注意到兩個問題，<br /> 第一，航空插頭的接觸電阻指標事實上是接觸對電阻，它包括接觸電阻和接觸對導體電阻。通常導體電阻較小，因此接觸對電阻在很多技術規范中被稱為接觸電阻。<br /> 第二，在連接小信號的電路中，要注意給出的接觸電阻指標是在什么條件下測試的，因為接觸表面會附則氧化層，油污或其他污染物，兩接觸件表面會產生膜層電阻。在膜層厚度增加時，電阻迅速增大，是膜層成為不良導體。但是，膜層在高接觸壓力下會發生機械擊穿，或在高電壓，大電流下會發生電擊穿。對某些小體積的連接器設計的接觸壓力相當小，使用場合僅為mA 和mV 級，膜層電阻不易被擊穿，可能影響電信號的傳輸。</span></p> <p style="margin: 5px 0px; color: rgb(0, 0, 0); font-family: sans-serif; font-size: 16px; text-indent: 2em; line-height: 2em;"> <span style="font-size: 14px;"><strong>4、屏蔽性</strong> 元器件的密度以及它們之間相關功能的日益增加，對電磁干擾提出了嚴格的限制。所以<strong><a href="http://www.translation-shanghai.com/"><span style="color:#ff0000;">航空插頭</span></a></strong>往往用金屬殼體封閉起來，以阻止內部電磁能輻射或受到外界電磁場的干擾。在低頻時，只有磁性材料才能對磁場起明顯屏蔽作用。此時，對金屬外殼的電連續性有一定的規定，也就是外殼接觸電阻。。當其發熱超過一定極限時，將破壞航空插頭的絕緣和形成接觸對表面鍍層的軟化，造成故障。因此，要限制額定電流，事實上要限制航空插頭內部的溫升不超過設計的規定值。在選擇時要注意的問題是：對多芯航空插頭而言，額定電流必須降額使用。</span></p> <p style="margin: 5px 0px; color: rgb(0, 0, 0); font-family: sans-serif; font-size: 16px; text-indent: 2em; line-height: 2em;"> <span style="font-size: 14px;">相信大家一定對<strong><a href="http://www.translation-shanghai.com/"><span style="color:#ff0000;">航空插頭</span></a></strong>有了更深入的了解，上?？朴姎庥邢薰荆瑢I航空插頭,防水連接器 ,傳感器連接器,電纜連接器,帶線插座,汽車線束,圓形接插件,防水插座,水位水溫傳感器等,當日發貨質量有保證，歡迎致電咨詢合作。<strong>航空插頭廠家http://www.translation-shanghai.com/?</strong></span></p> </div> <div id="lrrl5xv" class="prodcont-cls" style="text-align:left; min-height:60px;">?</div> <div style="width:100%; height:50px; text-align:center; margin-top:50px;"> 上一篇：<a href='http://www.translation-shanghai.com/news2/577.html'>選擇軍用航空插頭5大要點！</a> 下一篇：<a href='http://www.translation-shanghai.com/news2/579.html'>為什么航空插頭孔內鍍金問題</a> </div> </div> <div id="7z7td7x" class="tj"> <div id="77b5v7p" class="tj_wz"> <div id="ndbllrz" class="neiyeLeft-ctitle" style="margin-top:20px; text-align:left;"> <span id="nfrlxhp" class="neiyeLeft-span"> 最新文章</span> </div> <div id="n5nt5d7" class="ctext_l" style="padding-top:8px;border:solid 1px #dddddd; background-color:#f3f1f2; width:99%;"> <ul class="cpleft-list"> <div class="7hhdzfl" 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