摘要
根据现行国内、国外标准规范的要求,结合工程示例,研究了可燃性爆炸危险(气体或蒸气)混合物的分类方法,并提供一些数学计算公式和经验应用规则,对可燃性爆炸危险(气体或蒸气)混合物相对密度、组分类和爆炸极限等进行推导、计算,为爆炸危险区域的划分提供基础依据,并得出不是含有氢气的可燃性爆炸危险(气体或蒸气)混合物都应为IIC的分类。
According to the requirements of the current domestic and foreign standards and codes,combined with engineering examples,the classification method of combustible substance(gas or vapor)in mixtures is studied,and some mathematical calculation formulas and empirical application rules are provided to deduce and calculate the relative density,group classification,explosion limit,etc.of combustible substance(gas or vapor)in mixtures,which provide the basis for the division of explosive hazardous areas,and conclude that combustible substance(gas or vapor)in mixtures not containing hydrogen should be classified as IIC.
作者
王骏
WANG Jun(Wuhan Gonghelong Electric Power Engineering Co.,Ltd.,Wuhan 430000,China)
出处
《电气应用》
2021年第3期53-56,共4页
Electrotechnical Application
关键词
混合物
最大试验安全间隙
最小点燃电流比
mixture
maximum experimental safe gap
minimum ignition current ratio
