EQUIPMENT SELECTION
Points to consider in equipment selection for the evaluation of Gas/Dusts
Group category (I,II,III)
Device category (1,2,3)
Protection type (d,e,i,m,n,p,q……)
Gas/Dust Explosive atmosphere group (IIA, IIB, IIC, IIIC, I)
Temperature class
Degree of protection (IPxy)
Group, Region and Category Definitions
GAS GROUPS
Group I = Coal Mines, Underground Workings
Group II = Aboveground Industrial Works
POWDER GROUPS
TEMPERATURE CLASS
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