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   机房防雷检测是如何避免事故发生的 
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  <span> 来源： 纵横通品牌 
   
      
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  <span> 发布日期： 2021.11.05 </span> 
  <span> 浏览： <em id="view_count">1</em>次 </span> 
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 <div class="p15-infocontent-1-con endit-content"><p>
    <strong>机房防雷检测</strong>主要是依靠避雷器进行防雷的。
</p>
<h2>
	机房防雷检测--避雷器的作用 &nbsp;
</h2>
<p>
    &nbsp; 避雷器的作用是限制沿线路进入装置的电压和电流。防雷装置的工作原理分为电压限值和电流限值。负载限值可分为电压幅值减小、电压梯度平滑或两者的组合。
</p>
<h2>
	<a class="attach inline_attach" href="https://www.szzht.com/articles/jfflxt.html" target="_blank" title="机房防雷检测">机房防雷检测</a>--防雷设备原理
</h2>
<p class="img-block" style="text-align:center;">
    <img align="" alt="机房防雷检测" src="https://www.szzht.com/resource/images/35f99dae19614b2bb03a5d36dc19a3a6_2.jpg" title="机房防雷检测" width="672">
</p>
<p>
    <br>
</p>
<p>
    &nbsp; &nbsp;如上图所示，V1为提供过压保护的防雷装置，R1和R2为线性电阻。如果外部U1过电压穿透时没有防雷保护，则电压受到限制，V1和u成为残余电压并降到残余电压，而u远低于U1，因此具有保护作用。根据选择原则，残余压力u通常应低于系统允许电压D。设备能够承受电压，换一种说法，
</p>
<p>
    &nbsp; 根据上述防雷设备处理原则，必须配备备用设备，设备本身必须具有一定的防护能力，否则不能工作，只要防雷装置的防护效果与防雷设备的等级相适应，可达到理想的防雷效果。
</p>
<h2>
	机房防雷检测--设备安装注意事项
</h2>
<p>
    1、注意营养和保护
</p>
<p>
    &nbsp; 在使用防雷技术时，营养应采取包括多阶段防雷区在内的多阶段保护措施，逐步降低雷电，协调各级电压限制电压，并限制设备绝缘电阻范围内的电压.
</p>
<p>
    2、电缆保护应至少两层
</p>
<p>
    &nbsp; 考虑到防雷防护项目的范围有限，如果超出其范围，防护效果可能会恶化，为了最大限度地提高防护效能，在同一类防雷装置中必须安装多个防雷装置，或在每个防雷区安装适当的装置。
</p>
<p>
    3、实施多级防护，注意防雷装置的维护
</p>
<p>
    &nbsp; 在某些特殊情况下，安装防护装置可能会增加其损坏的风险。可以有效地防止如果其中一个故障或响应效率低同时提供多阶段保护。
</p>
<p>
    4、注意安装的正确性
</p>
<p>
    &nbsp; 防雷雷装置安装不当，不能有效地提供防护，如果避雷针连接导线过长，应力，电感连接产生的电压在操作过程中增加，设备加载时产生危险电压，因此，优秀的防雷工程师认为，要解决这一问题，必须使用短的通信线路和两条以上的独立通信线路，以分离磁场的强度来降低电压.
</p>
<p class="img-block" style="text-align:center;">
    <img align="" alt="机房防雷检测" src="https://www.szzht.com/resource/images/35f99dae19614b2bb03a5d36dc19a3a6_4.jpg" title="机房防雷检测" width="800">
</p>
<p>
    5、注意避雷器的出线和出线，接地间隔较远
</p>
<p>
    &nbsp; 如果在防雷过程中使用了大型串并联防雷电源系统，则铺设其导线，输入线和接地线，输出线中的感应电压会瞬间升高，造成危险情况，建议拆分或垂直铺设三条线路，以尽量减少平行铺设的长度。
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