Globally recognized hazardous locations Certification for North America
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You can benefit with faster time to a global marketplace with the UL certification process, not only do we understand the requirements – we helped develop them. In fact, we participate in over 50 Standards writing committees, such as: TC31 (IECEx), UL STP (North America), NFPA, API, BSEE and CFR committees.
UL and C-UL hazardous areas Certification for North America overview
UL and C-UL Certification services for HazLoc include:
Evaluation and testing
Ordinary Location/Safe Area Requirements – Certification for risks associated with shock, fire and personal injury.
Hazardous Location/Explosion Protection Requirements – Certification based on area classification and explosion protection methods for either Division or Zone installations. A Hazardous Locations Certified product must comply with both ordinary location and hazardous locations requirements in accordance with U.S. UL and American National Standards Institute (ANSI) and CAN Standards.
Production control
In accordance with the Occupational Safety and Health Administration (OSHA) and Standards Council of Canada (SCC) regulations, four production inspections per year at a minimum.
What is a hazardous location?
Location where explosion or fire hazards exist due to the presence of flammable gases, flammable or combustible liquid-produced vapors, combustible dusts, or ignitable fibers or flyings.
How are hazardous areas classified?
Area Classification – Hazardous Locations are classified by the likelihood of an ignitable concentration of combustible material being present. There are two systems in place, including the traditional North American Division system as well as the alternative Zone system. See below for further details:
Division system sample marking
Zone system sample marking
Division system details (NEC article 500 through 503/CEC section 18)
- Divisions
- Class – Materials are divided by type:
- Groups – Materials are further divided into Groups for Class I, Divisions 1 and 2:
- Groups – Materials are further divided into Groups for Class II, Division 1 and 2:
What is the difference between a Class I, Division 1 Location and Class I, Division 2 Location? What about the differences between the other locations?
- Class I, Division 1 Location
- Class I, Division 2 Location
- Class II, Division 1 Location
- Class II, Division 2 Location
- Class III, Division 1 Location
- Class III, Division 2 Location
Zone system details (NEC article 505-506/CEC section 18)
- Zones
- Groups – Class I, Zone 0, 1 and 2
- Groups – Zone 20, 21 and 22
- Electrical Protection Types – Gas Atmospheres
- Electrical Protection Types – Dust Atmospheres
- Equipment Protection Level (EPL)
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Solutions
- Hazardous Location (HazLoc) Certification for Global Market Access
- Hazardous Locations Advisory Services
- Hazardous Locations Training and Technical Education
- Functional Safety
- Testing and Certification for Industrial Supply Chain Cybersecurity
- Wireless Device EMC Testing and Certification
- Marketing Claim Verification
- Data Acceptance Program (DAP)