防爆灯有哪些种类

2025-03-23 13:41:04
推荐回答(3个)
回答1:

防爆灯是指用于可燃性气体和粉尘存在的危险场所,能防止灯内部可能产生的电弧、火花和高温引燃周围环境里的可燃性气体和粉尘,从而达到防爆要求的灯具。
防爆灯一般按选用的光源、防爆结构型式、使用方式进行分类。按光源分类有防爆白炽灯、防爆高压汞灯、防爆低压荧光灯、混合光源灯等;按防爆结构型式分类有隔爆型灯具、增安型灯具、复合型灯具等;按使用方式进行分类有固定式防爆灯具和携带式防爆灯具。
希望对你有所帮助

回答2:

煤矿用防爆灯的防爆标志一般是隔爆型ExdI
来自南阳中天防爆

回答3:

  防爆灯具是具备防暴特性的一类照明设备。关键有隔爆型防爆灯具、安全性型防爆灯具、移动型防爆灯具等。 防爆灯具适用于:
石油化工设备、原油平台、加油气站、油泵房、转运站等易燃易爆场地作照明灯具; 1区、2区可燃性气体环境;21区、22区易燃性粉尘环境。归类:
  1. 防爆灯具的防爆类型、等级与环境温度等级见国家行业标准要求。
  2. 按防爆型式分成增安型、隔爆型、正压型、无火花型和粉尘防爆型共5种关键种类,还可以由其他防爆型式和以上各种防爆型式组成形或混合型和独特型。
  3. 按防止触电保护形式可分成Ⅰ、Ⅱ、Ⅲ类。防止触电保护是为避免防爆灯具机壳易碰触零件通电,使身体触电事故或不同电位的导体碰触造成火花放电而点燃可燃性混合物质。
  AⅠ类——在基本绝缘层的基础上,将易碰触的常规运行时不通电的可导电构件都相互连接到固定不动路线中的接地保护导体上。
  BⅡ类——用双向绝缘层或加强绝缘做为安全性保障措施,无保护接地。
  CⅢ类——应用有效值不得超过50V的电压,而且在其中不容易造成高过此电压值。
  D0类——只借助基本绝缘层做为安全性保障措施。
  绝大多数的防爆灯具防止触电保护形式为I类照明灯具,仅有极少数为Ⅱ类、Ⅲ类照明灯具。例如:全塑防爆灯具,防爆手电简。
  4. 按机壳的安全防护等级划分:为了更好地安全防护浮尘、固态异物和水进到灯腔内,碰触或积集在通电构件上造成跳火、短路故障或毁坏电气设备绝缘层等风险,有多种多样机壳安全防护方法具有保护电气绝缘层的功效。用英文字母″IP″后跟2个数据来表现其外壳防护等级。第1个数字表示对人会、固态异物或浮尘的安全防护能力。分成0—6级。防爆灯具是一种密封性照明灯具,其防尘能力最少为4级以上,第2个数字表示对水的安全防护能力,分成0—8级。
  5. 按灯具设计的支承面材质划分:房间内防爆灯具很有可能组装在很多属于一般易燃原材料表层,如木制的墙和吊顶天花板,他们不允许防爆灯具组装表层的温度超出安全性标值。依据防爆灯具是不是可同时安装在一般易燃材料表层可分成2类:
  一类为仅适合于组装在非易燃表层的照明灯具。另一类为适合于安装在一般易燃材料表层的照明灯具,有标识符号。
  6. 按组装应用方式可分成:移动式、可移式、便携式。

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