The product information posted on the company's website is often mentioned. This product is suitable for "IIA, IIB explosive gas mixtures; temperature group T1-T4 (T6);" Many customers may have questions, so what is an explosive gas mixture? Which gases are flammable and explosive? Below is a specific introduction to explosive gas mixtures and their classification and grouping.

Definition of explosive mixtures:

Explosive mixtures refer to mixtures of gases, vapors, mist, dust, or fibrous flammable substances mixed with air under atmospheric conditions. After ignition, combustion will rapidly spread throughout the entire range to form an explosive mixture.

Classification of explosive mixtures:

The danger of an explosive mixture is determined by its explosive limit, explosive transmission capacity, ignition temperature, and minimum ignition current.

According to the danger of explosive mixtures and considering the characteristics of actual production processes, explosive mixtures are generally divided into three categories:

Class I - Mine methane

Class II - Industrial gases (such as factory explosive gases, vapors, mist)

Class III - Industrial dust (such as explosive dust and flammable fibers)

On the basis of classification, various explosive mixtures are classified according to the maximum test safety gap and minimum ignition current, and grouped according to the ignition temperature. The main purpose is to configure corresponding electrical equipment to achieve the purpose of safety production.