Transcription of Tech Note Definitions of Classes, Groups and …
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Tech Note Definitions of Classes, Groups and …
Tech Note Definitions of classes , Groups and Divisions Hazardous Locations: Definitions of classes , Groups and Divisions Hazardous locations are areas where the potential for fires or explosions exists because of gases, dust, or easily ignitable fibers or particles in the atmosphere. In North America, hazardous areas are separated by classes , Groups and divisions to define the level of safety required for equipment installed in these locations. classes define the general form of the flammable materials in the atmosphere. Groups classify the exact flammable nature of the material. Divisions define the probability of the presence of flammable materials. SUMMARY OF CLASS I, II, and III HAZARDOUS LOCATIONS. classes Groups DIVISIONS. 1 2. A. Acetylene Not normally present B. Hydrogen, etc. I Gasses, Vapors in an explosive C.
1 Tech Note Definitions of Classes, Groups and Divisions Hazardous Locations: Definitions of Classes, Groups and Divisions Hazardous locations are areas where the potential for fires or explosions exists because of gases, dust, or easily ignitable fibers or particles in the atmosphere.
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