爆炸危险性气体环境内的电气设计  

Electrical Design in the Explosive Gas Environment

作　　者：郭亚娟 

机构地区：[1]广东政和石油化工建筑设计有限公司,广东广州510380

出　　处：《广东化工》2015年第15期194-196,共3页Guangdong Chemical Industry

摘　　要：在大气条件下,气体、蒸汽、粉尘、薄雾、纤维或飞絮的形式与空气形成的混合物(统称为爆炸性物质)引燃后,能够保持燃烧自行传播的环境为爆炸危险环境。爆炸性物质分为三类:Ⅰ类,矿井甲烷;Ⅱ类,爆炸性气体(含蒸汽和薄雾)、蒸汽;Ⅲ类,爆炸性粉尘、纤维。文章笔者从爆炸危险区域及等级的划分、电气设备的选用、电气线路的敷设、防雷接地和等电位连接、电气设备的维护等几个方面对爆炸性气体环境内的电气设计作一些简单阐述。Under atmospheric conditions, the mixture of gases, vapors, dusts, mists, in the form of fibers or catkins and air to form collectively ref-erred to as the explosive substance. After ignition of these substances, they can keep burning and self-propagation environment is called explosion hazard environment. Explosive substances are divided into three categories： Ⅰ class, mine methane; Ⅱ class, explosive gas（containing steam and mist）, steam; Ⅲ class, explosive dust, fibers. In this paper, The author only make some analysis and statement to electrical design in the explosion gas environment from explosion hazardous areas and levels of division, the choice of electrical equipment, electrical lines laying, lightning protection and grounding and equipotential connection, maintenance and other aspects.

关 键 词：爆炸性气体 释放源 电气设计 

分 类 号：TQ[化学工程]