What conduit is permitted in a Class 1 Division 1 location?
Threaded rigid metal conduit
(1) General. In Class I, Division 1 locations, the following wiring methods shall be permitted: Threaded rigid metal conduit (Type RMC) or threaded steel intermediate metal conduit (Type IMC).
Does Class 1 Div 2 require explosion-proof?
While Division 1 motors in Class I locations must be explosion-proof, Class II, Division 1 motors must be dust- ignition-proof. The characteristics of dust-ignition-proof motors differ from those of their Class I counterparts.
Which type of cable is allowed in hazardous locations?
Type MC-HL is permitted in Class I , Division 1 hazardous (classified) locations. This is a multi-conductor, gas and vaportight continuous corrugated metal-sheathed cable provided with an overall polymeric jacket and an additional equipment grounding conductor sized in accordance with NEC 250.122.
What is a Class 1 Div 2 area?
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 type of wiring must be used in a Class 1 Division 1 hazardous location?
threaded rigid metal conduit
Two of the allowable wiring methods for a Class I Division 1 location are threaded rigid metal conduit (RMC) and threaded steel intermediate metal conduit (IMC).
What type of cable is classification 1?
Ethernet Cable Categories
|Category||Max. Data Rate||Usage|
|Category 1||1 Mbps||Telephone and modem lines|
|Category 2||4 Mbps||LocalTalk & Telephone|
|Category 3||10 Mbps||10BaseT Ethernet|
|Category 4||16 Mbps||Token Ring|
What is Class 1 Division 2 enclosure?
Division 2 specifies that flammable materials are handled, processed, or used at a location. But, concentrations of hazardous substances are not high enough to be ignitable. This applies to devices such as Flashlights, Meter readers, Enclosures, etc. So a Class 1 Division 2 Enclosure is used in facilities that deal with flammable gases, vapors
What is Class 1 Div 1?
Class I, Division 1 classified locations An area where ignitable concentrations of flammable gases, vapors or liquids can exist all of the time or some of the time under normal operating conditions. A Class I, Division 1 area encompasses the combination of Zone 0 and Zone 1 areas. Zone 0 classified locations
What is Class II Division 1?
– Part Number: 1926 – Part Number Title: Safety and Health Regulations for Construction – Subpart: 1926 Subpart K – Subpart Title: Electrical – Standard Number: 1926.407 – Title: Hazardous (classified) locations. – GPO Source: e-CFR
What is a Class 1 Division 1 area?
Division 1 is a subset of Class I and is classified as an area where the explosive or flammable gases, vapors or liquids mentioned above can exist under normal, everyday operating conditions. Is a Class 1 Div 2 motor explosion proof?