There are classified locations in Class I. All of the time or some of the time, ignitable concentrations of flammable gases, vapors and liquids can be found in this area. There is a Class I, Division 1 area that includes Zone 0 and Zone 1.
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What is a Class 2 Div 2 area?
Class 2 Division 2 is an area where there may be enough dust to cause an explosion.
What is a Division 2 area?
Division 2 is classified as a subset of Class I because it isn’t likely to have any of the gases or liquids mentioned above.
What is a Class 2 hazardous location?
There are two types of hazardous locations, called Class II locations. The classification is created by the presence of dust in the air that is sufficiently large to make it explode.
What is a Class I Division II location?
“Class I, Division 2:” refers to locations where volatile flammable liquids or flammable gases are used, but which would become hazardous in case of an accident or unusual operating condition.
Does Class 1 Div 2 require explosion proof?
Class I locations must be explosion-proof, Class II locations must be dust-proof, and Division 1 motor must be dust-proof. The motor’s enclosure is designed to exclude hazardous materials.
What is a Class 1 Division 2 location?
Facilities that deal with flammable gases, vapors, and liquids are classified as Class 1 hazardous locations. The flammable materials are handled, processed, or used in a hazardous location, but are not usually present in concentrations high enough to beignitable.
What is an example of a Class 1 Division 2 location?
Class I locations are those where gases and vapors can be seen. Class II locations have the possibility of being found with dust.
What is a Class 1 Div 2 enclosure?
Facilities that deal with flammable gases, vapors, and liquid materials use a Class 1 Division2 Enclosure. The facility handling, processing, or using the materials in the hazardous location have concentrations that are notignitable.
What is a Class 1 Division 2 area?
There are classified locations for Class I, Division 2 and Zone 2. Under normal operating conditions, flammable gases, vapors or liquids are not likely to exist in this area. The gas, vapor, and liquids would only be present under normal conditions.
What is a Class 2 enclosure?
There is a Class II Hazardous location that has dust. Group E, F, and G are part of Class II. Grain elevators are one of the most typical Class II locations.
Can NEMA 4x be used in Class 1 Div 2?
Class 1 Division II classification means that electrical enclosures can be used in areas with less than 10% of hazardous materials.
What is a Class 1 Division 2 motor?
What is a Class 2 motor?
Class II Group F and G locations have atmospheres with dust such as (F) Carbon Black, coal or Coke Dust. There are two things. Class II Group F & G approvals are required for explosion-proof motor with temperature protection.
What is a Class 1 Division 1 motor?
Class I, Division 1 motors are built to operate in environments where there are a lot of potentially explosive atmospheric gases or vapors. They have to be labeled as explosion-proof.
Do Motors explode?
A hot motor surface can cause an explosion if it gets so hot that it causes a gas or dust explosion. An ambient material can be set ablaze by a single arcs from a motor malfunction.
How do you know if a motor is explosion proof?
An explosion proof motor is clearly marked with a name that identifies it as suitable for a hazardous environment. The hazardous location Class, Division, and Group for which the motor is suited will be indicated by the nameplate.