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url(/templets/default/images/reotemp_16.jpg); background-repeat: repeat-x; background-position: left top; padding-left:10" width="100%"> <span class="crumb-c"> <em><a href='http://www.brilliantmediocrity.com/'>MTL安全栅、倍加、菲克斯、魏L勒等品牌安全栅官方供应商</a> > <a href='/news/'>新闻资讯</a> > </em></span></td> <td align="left" valign="top"> <img src="/templets/default/images/reotemp_18.jpg" width="4" height="23" alt=""></td> </tr> </tbody></table> <table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse" bordercolor="#111111" width="100%" class="normal"> <tbody><tr> <td width="100%"> <h1 class="pgtitle"><a style="color:#034786; text-decoration:none;" href="/news/257.html">安全栅的防爆工作原理概述</a></h1> </td> </tr> <tr> <td width="100%"> <p>2020-06-23 11:36</p> <br> <div>       <a href="http://www.brilliantmediocrity.com/" target="_blank">安全?/a>一般都采用l一的外形和安装寸Q?电\用阻燃环氧树脂浇在壳体内,各接U端子问的爬电距R电?间隙及材料的相对泄痕指数都符合有兟뀂安全栅正常操作条g下,非本安端1?之间所加的电压低于最高压Q更低于齐纳二极的齐纳电压Q此时线路处于不导通状态,除有极微的漏电以外,?ldquo;开?rdquo;状态,安全栅电路等效于一个电M联在信号回\?只要漏电小于规定|其电路不会媄响系l的正常工作?br />  </div> <div>       当非本安端发生故障,在非本安端之间因某种原因混入高压Q齐纳二极反向击I,?ldquo;导?rdquo;状态,此时齐纳二管把؜入的高电压限制在齐纳电压上,在安全栅的本安端会出现高电压Q齐U二极管一导通以后,其电急剧上升Q把串联在电路中的熔断器瞬时熔断Q切断了至现场的高电压,防止了高电压引爆现场爆炸性物质的危险。当现场(危险区内)发生故障Q例如负载短路了Q安全栅电\中的限流电阻立即起限作用,把短路电限制在某一?甉|g内,q个甉|值是安全|故现Z是安全的。在本质安全防爆pȝ中,׃安全栅的功能Q所以不论发生Q何故障都保证传输到现场危险区的能量是一个安全倹{?/div> <br> <p>为顾客提供最完善的解x案,更多详情误问mtl安全栅官|:http://www.brilliantmediocrity.com/</p> <br> <li style="list-style:none;" title="上一?>上一:<a href='/news/256.html'>MTL隔离栅的工作环境要求</a> </li> <li style="list-style:none;" title="下一?>下一:<a href='/news/258.html'>MTL安全栅用于工业自动化的安全要?/a> </li> </td> </tr> </tbody></table> <table border="0" cellpadding="0" cellspacing="0" style="width: 680px"> <tbody> <tr> </tr> </tbody> </table> </td> </tr> </table> </td> </tr> <tr> <td align="center" height="49"> 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