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MOSFETS </a> </div> </div> <div class="rig_con"> <div class="top"> <h1 class="title"> 保險絲電阻為什么不能代替保險絲原因 </h1> <div class="meg"> <div class="firsts">發布時間：2021-09-28</div> <div class="">已被瀏覽：<span>3860</span>次</div> <div class="shape"> <span>分享到：</span> <div class="bdsharebuttonbox" style="display:inline-block;vertical-align:middle;"><a href="#" class="bds_more" data-cmd="more"></a><a href="#" class="bds_qzone" data-cmd="qzone" title="分享到QQ空間"></a><a href="#" class="bds_tsina" data-cmd="tsina" title="分享到新浪微博"></a><a href="#" class="bds_sqq" data-cmd="sqq" title="分享到QQ好友"></a><a href="#" class="bds_weixin" data-cmd="weixin" title="分享到微信"></a><a href="#" class="bds_renren" data-cmd="renren" title="分享到人人網"></a></div> <script> window._bd_share_config={"common":{"bdSnsKey":{},"bdText":"","bdMini":"2","bdMiniList":false,"bdPic":"","bdStyle":"0","bdSize":"16"},"share":{}};with(document)0[(getElementsByTagName('head')[0]||body).appendChild(createElement('script')).src='http://bdimg.share.baidu.com/static/api/js/share.js?v=89860593.js?cdnversion='+~(-new Date()/36e5)]; </script> </div> </div> </div> <div class="con"> <span style="font-family:新宋體,arial;"><span style="font-size:16px;"><span style="line-height:200%;">提問：為什么<a href="http://www.forsakring-online.com/"><span style="color:#FF0000;"><strong>保險絲電阻</strong></span></a>不能代替保險絲？<br /> <br /> 答：如果電路中使用電阻進行過載保護有一定的限制，原因是當通過電阻的電流超過電阻的大承載能力時，電阻會被燒毀，使電阻開路，使電路過載時電路被過大電流燒毀。因此，雖然電阻具有類似保險絲的過載保護功能，但在電路過載保護中并不能起到很好的保護作用，因此用電阻代替保險絲是不安全的。<br /> <br /> 保險絲在電路中需要具備三個基本功能：保護功能、承載功能和安全功能。<br /> <br /> 保險絲的保護功能包括過載保護和短路保護功能。當電路中的電路超過電路的承載能力時，保險絲必須在規定的時間范圍內動作，阻斷通過電路的電流，保護電路或部件不受過載電流的損壞。如果使用保險電阻代替保險絲，保險電阻的反應時間和動作持續時間可以像保險絲一樣準確，不能及時保護電路。雖然可以阻斷過載電流，但過載電流過大時不能及時保護電路，比保險絲差很多，所以不能用保險電阻代替保險絲，否則電路過載或電路會損壞電路和電路部件。<br /> <br /> 保險絲的承載功能由熔化熱能值保證，使保險絲能夠承受必要開關次數一定能量的脈沖沖擊，因此在選擇時需要進行計算和評估。但是保險絲電阻本身沒有類似的技術指標，用的小就會被脈沖沖斷，用的大就沒有保護功能。</span></span></span><br /> <img alt="保險絲電阻為什么不能代替保險絲原因" src="/u_file/2108/photo/2108/2021080616531485.jpeg" /><br /> <span style="font-family:新宋體,arial;"><span style="font-size:16px;"><span style="line-height:200%;">保險絲的安全功能由額定電壓、分斷能力等指標保證，特別是權威的第三方安全法規認證。但是，保險絲電阻本身不是安全元件，也不需要安全認證?？上攵?，它的安全性不足，保護功能不足，燒壞過程中很難保證周圍不安全。<br /> <br /> 可以得出結論，雖然保險絲電阻有過流燒斷的動作，但并不能真正起到保險絲的同樣作用。保險絲電阻可以在部分電路中應用，可以降低一些成本，但是在電路中安裝過載保護元件，不能使用保險絲電阻代替保險絲。<br /> <br /> 以上內容主要介紹保險絲電阻為什么不能代替保險絲原因，如需要保險絲相關產品請留言聯系或<span style="color:#FF0000;">撥打：0755-28100016；</span>海量自恢復保險絲現貨庫存，規格齊全。歡迎來咨詢價格或拿樣測試。<br /> <br /> 深圳順?？萍加邢薰臼且患乙源頌橹鞯碾娮釉骷?、半導體器件、保護器件的整合供應商，主營TVS瞬態抑制二極管、ESD靜電保護器、GDT陶瓷氣體放電管、TSS半導體放電管、NTC熱敏電阻、壓敏電阻、保險絲、合金電阻、貼片電阻、精密電阻、晶圓電阻、貼片保險絲、自恢復保險絲、貼片電容、鉭電容、電解電容、鋁電解電容、超級電容、連接器等相關產品線，品牌可選華德、碩凱、薩瑞微、億能、特思嘉、基美(KEMET)、天二、旺詮、大毅、村田、太誘、TDK、AVX、威世、風華、華新科、三瑩、國巨、立隆、厚聲、光頡、順絡、麥捷、禾伸堂等知名品牌。</span></span></span> </div> <div id="page" class="wow fadeInUp wrap"> <div class="page-btn prev">上一篇 : <a href="/faq/news-i01566i1.html">什么是“可恢復保險絲”？</a></div> <div class="page-btn next">下一篇 : <a href="/faq/news-i01564i1.html">自恢復保險絲“效果”深度了解</a></div> </div> <div class="returns"> <a href="/faq/category-12/page-2.html" class="returns"><img oncontextmenu="return false;" src="/images/return.png" /> 返回列表</a> </div> <div class="relate-title">相關知識解答</div> <div class="relate-list"> <div class="list fl"> <div class="list-title fl text-over"><span>» </span><a href="/faq/news-i01889i1.html">PPTC自恢復保險絲在投影設備中的應用介紹</a></div> <div class="list-time fr text-right">2022-05-09</div> <div class="clear"></div> </div> <div class="list fl"> <div 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