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      <div class="weizhi">当前位置：<a href="/">首页</a> &gt; <a href="/article.html">技术文章</a> &gt; 解析隔爆型云台的标准原理</div>
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       <h1 class="biaoti">解析隔爆型云台的标准原理</h1>
       <div class="fabiao">更新时间：2016-08-25&nbsp;&nbsp;|&nbsp;&nbsp;点击率：2850</div>
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       &nbsp;　　在日常生活中<strong><a href="http://www.hzalkj.cn/Products-7755896.html">隔爆型云台</a></strong>可以防止爆炸吗？其实产生&ldquo;爆炸&rdquo;和产生&ldquo;燃烧&rdquo;所需要素差不多，需要同时具备二个条件才可能发生：*，必须存在爆炸性物质或可燃性物质；只有这二个条件同时存在，才有发生爆炸的可能性，其中任何一个条件不具备，就不会产生燃烧和爆炸。<div>　　而真正的隔爆型云台的制造原理，也无非是为了让以上二个条件不同时具备，才真正起防爆的作用，zui早的隔爆型云台，以&ldquo;本安型&rdquo;防爆型式为主。</div><div>　　&ldquo;本安型&rdquo;是从限制电路中的能量入手，云台内部通过可靠的控制电路参数将潜在的火花能量降低到可点燃规定的气体混合物能量以下。在云台内部的所有电路都是由在标准规定条件下，产生的任何电火花或任何热效应均不能点燃规定的爆炸性气体环境的本质安全电路。</div><div>　　当然之后还出现过在&ldquo;正压型&rdquo;防爆型式，在云台内保持持续的空气或充入惰性气体，以限制可燃性混合物通过外壳进入云台内部。数字化实现了语音和视频的高清晰和高压缩比，远远超越了一般传统CCTV所摄录的画质和音质，利用异地管理和异地存储，大大减少管控波折和费用至于用&ldquo;浸油型&rdquo;和&ldquo;充砂型&rdquo;<strong>隔爆型云台</strong>上安防市场也出现过，只是数量极少。</div><div>　　目前市场上隔爆型云台zui常见的是一种&ldquo;隔爆型&rdquo;防爆型式，它是把云台可能点燃爆炸性气体混合物的部件全部封闭在一个外壳内，并且不会引起外部由一种、多种气体或蒸气形成的爆炸性环境的点燃。把云台可能产生火花、电弧和危险温度的零部件均放入隔爆外壳内，隔爆外壳使云台内部空间与周围的环境隔开。模拟线路老化会对监控造成影响，而网络线老化却不会对数字信号传输有太大影响降低火焰传播速度或终止加速链，使火焰或危险的火焰生成物不能穿越隔爆间隙点燃外部爆炸性环境，从而达到隔爆目的，于是许多以生产这种隔爆外壳为主安防企业。</div><div>　　所以<strong>隔爆型云台</strong>应用在十分危险的场所，国家对危险场所在防爆等级定义中很清晰，就是指由于存在着易燃易爆性气体、蒸气、液体、可燃性粉尘或者可燃性纤维而具有引起火灾或者爆炸危险的场所。</div>
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