UL 844 – Standard for Hazardous Location Lighting
UL 844 is a safety standard that establishes the design, performance, and testing requirements for lighting fixtures used in hazardous locations. It applies to explosion-proof and dust-ignition-proof lighting designed for industrial, military, and high-risk environments where flammable gases, vapors, or combustible dust may be present.
UL 844-certified lighting is essential for oil rigs, chemical plants, refineries, mining operations, and military installations, where standard lighting could pose a fire or explosion risk.
Why is UL 844 Important?
- Ensures lighting safety in hazardous locations, preventing ignition of flammable gases or dust.
- Classifies lights based on hazardous area classifications (Class I, II, and III).
- Covers explosion-proof enclosures, impact resistance, and thermal protection.
- Reduces fire and explosion risks in high-risk work environments.
- Complies with OSHA, NEC, and NFPA regulations for industrial safety.
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UL 844 Hazardous Location Classifications
UL 844 defines lighting requirements based on hazardous location classifications, including:
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Class I – Flammable Gases & Vapors
- Division 1: Areas where flammable gases/vapors are present continuously.
- Division 2: Areas where flammable gases/vapors are present only during abnormal conditions.
- Examples: Oil refineries, gas plants, chemical factories.
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Class II – Combustible Dust
- Division 1: Areas where combustible dust is suspended in the air under normal conditions.
- Division 2: Areas where dust accumulates but is not always airborne.
- Examples: Grain silos, flour mills, metal processing facilities.
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Class III – Ignitable Fibers & Flyings
- Includes locations where fibrous materials such as wood dust, textiles, or paper particles pose a fire risk.
- Examples: Textile mills, sawmills, paper production facilities.
Get UL 844-Certified Hazardous Location Lighting
Need explosion-proof lighting for hazardous environments? Betalight Tactical delivers UL 844-compliant lighting solutions designed for industrial, military, and high-risk locations. Contact us today to learn more.