By What is a Class 1 Division 2 area?
Class I, Division 2 or Zone 2 classified locations. An area where ignitable concentrations of flammable gases, vapors or liquids are not likely to exist under normal operating conditions. In this area the gas, vapor or liquids would only be present under abnormal conditions (most often leaks under abnormal conditions).
What is a Class 2 Div 2 area?
Class 2 Division 2, also commonly written with a Roman numeral “Class ii Division 2”, represents an area where combustible dust may be present in quantities sufficient to ignite or explode.
What is a Class 1 location?
Class I Locations A “Class I Location” is created by the presence of flammable gases or vapors in the air in sufficient quantities to be explosive or ignitable. When these materials are found in the atmosphere, a potential for explosion exists if an electrical or other source of ignition is present.
What’s the difference between Class 1 Div 1 and Class 1 Div 2?
Class 1 Hazardous Locations refer to facilities which deal with flammable gases, vapors, and liquids. Division 2 specifies that these flammable materials are handled, processed, or used in the defined hazardous location, but are not normally present in concentrations high enough to be ignitable.
What are the explosion proof classifications?
Hazardous materials are categorized into three main groups: Class I environments where hazards are flammable vapors and gases present in sufficient quantities to form explosive mixtures. Class II hazardous materials are combustible dust present in quantities enough to trigger an explosion or ignite a fire.
What is the difference between Class 1 Div 1 and Div 2?
What is ATEX zone classification?
ATEX uses Zone numbers to distinguish between environments with different levels of danger. ATEX distinguishes between explosive atmospheres that arise because of gases, vapours and mists and those that arise from dusts. ATEX Zone 0 is the most hazardous workplace type where gases, vapours and mists are present.
What is zone classification?
Area classification is a method of analysing and classifying the environment where explosive gas atmospheres may occur. Zone 2: An area in which an explosive gas atmosphere is not likely to occur in normal operation and, if it occurs, will only exist for a short time.
How do you classify hazardous locations?
Hazardous locations are classified in three ways by the National Electrical Code: TYPE, CONDITION, and NATURE. All of these are Class I gas or vapor hazardous locations. All require special Class I hazardous location equipment.
What is the difference between Class 1 Div 1?
Class I locations are ones in which hazardous vapors may or do exist. The difference between Div 1 and Div 2 is the level of expectation that hazardous levels will be present.