Hazardous Area Classification
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Hazardous Location Terms
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Hazardous Locations Classifications Descriptions Class 1, Div. 1 - Where ignitable concentrations of flammable gases, vapors or liquids can exist all of the time or some of the time under normal operation conditions. Class 1, Div. 2 - Where ignitable concentrations of flammable gases, vapors, or liquids are not likely to exist under normal operating conditions. Class 2, Div. 1 - Where ignitable concentrations of combustible dusts can exist all of the time or some of the time under normal operation conditions. Class 2, Div. 2 - Where ignitable concentrations of combustible dust are not likely to exist under normal operating conditions. Class 3, Div. 1 - Where easily ignitable fibers or materials producing combustible flyings are handled, manufactured or used. Class 3, Div. 2 - Where easily ignitable fibers are stored and handled. Groups: A (acetlyene), B (hydrogen), C (ethylene), D (propane) Groups: E (metals - div. 1 only), F (coal), G (grain). Product Emergency Units Z ZX ZX ZX ELA ZX ELA ZX ELA ZX ELA ZCD Exit Units LZ LZ LHZ LHZ
Groups Class 1, Division 2 Class 1, Division 1 Class 1, Division 2 Class 2, Division 2 Class 1, Division 1 Class 1, Division 2 Class 2, Division 1 Class 2, Division 1
A, B, C, D C, D C, D F, G C, D C, D, F, G E, F, G E, F, G
Class 1, Division 2 Class 2, Division 2 Class 1, Division 2 Class 2, Division 2
A, B, C, D F, G A, B, C, D F, G
Copyright ฉ 2003 Acuity Lighting Group, Inc. | Comments | Updated 03/24/03
http://www.lithonia.com/industrialcd/TechnicalData/Hazardous%20Location%20Terms.... 7/8/2551
Page 1 of 1
Hazardous Locations Classifications Descriptions Class 1, Div. 1 - Where ignitable concentrations of flammable gases, vapors or liquids can exist all of the time or some of the time under normal operation conditions. Class 1, Div. 2 - Where ignitable concentrations of flammable gases, vapors, or liquids are not likely to exist under normal operating conditions. Class 2, Div. 1 - Where ignitable concentrations of combustible dusts can exist all of the time or some of the time under normal operation conditions. Class 2, Div. 2 - Where ignitable concentrations of combustible dust are not likely to exist under normal operating conditions. Class 3, Div. 1 - Where easily ignitable fibers or materials producing combustible flyings are handled, manufactured or used. Class 3, Div. 2 - Where easily ignitable fibers are stored and handled. Groups: A (acetlyene), B (hydrogen), C (ethylene), D (propane) Groups: E (metals - div. 1 only), F (coal), G (grain). Product Emergency Units Z ZX ZX ZX ELA ZX ELA ZX ELA ZX ELA ZCD Exit Units LZ LZ LHZ LHZ
Groups Class 1, Division 2 Class 1, Division 1 Class 1, Division 2 Class 2, Division 2 Class 1, Division 1 Class 1, Division 2 Class 2, Division 1 Class 2, Division 1
A, B, C, D C, D C, D F, G C, D C, D, F, G E, F, G E, F, G
Class 1, Division 2 Class 2, Division 2 Class 1, Division 2 Class 2, Division 2
A, B, C, D F, G A, B, C, D F, G
Copyright ฉ 2003 Acuity Lighting Group, Inc. | Comments | Updated 03/24/03
http://www.lithonia.com/industrialcd/TechnicalData/Hazardous%20Location%20Terms.... 7/8/2551
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