Hazardous Location Standards for LED Lighting

LED lighting provides many benefits for hazardous location applications due to its longer lifespan, lower heat output, and higher energy efficiency compared to traditional lighting sources. However, it's important that any LED lighting installed in hazardous areas meets the relevant safety standards to prevent potential explosions or fires. The two main standards that apply to hazardous location LED lights in North America are UL 844 and CSA C22.2 No. 30-M1986.

UL 844 covers standards for safety for electrical lighting equipment for use in Class I, Division 2, and Class I, Zone 2 Hazardous Location LED Lighting locations. It specifies testing requirements for ignition protection, enclosure integrity, temperature ratings, and marking. CSA C22.2 No. 30-M1986 provides similar rules for Class I, Zones 0, 1, and 2 as well as dust ignition-proof enclosures for Zone 21 and 22 applications. Lights certified to these standards ensure they cannot ignite flammable gases or dust that may be present.

Benefits of LED Lighting for Hazardous Locations

There are several important benefits that LED lighting provides over traditional lighting sources for hazardous applications:

Lower Operating Temperatures

LED lights produce much less heat compared to high-intensity discharge (HID) and fluorescent lamps. This allows them to operate at lower and safer temperatures that do not risk igniting flammable vapors or dust. LED lights certified for hazardous locations are rated to operate at maximum case temperatures under 200°C/392°F.

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