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A hazardous area is any location where there's a risk of an explosion. Importantly, these areas can exist in any workplace. Typical examples include oil rigs, refineries, chemical production facilities, and food production sites. However, there are other, less obvious applications that require hazardous area equipment, such as environments with:
When there's a potential for an explosive atmosphere, special precautions are needed to prevent fire and explosions. Lighting, along with other electronic equipment, needs to be specifically designed for use in hazardous areas. This ensures that sparks don't occur and ignite any flammable substances.
C1D1 & C1D2 (North America)
Unlike most countries, Canada and the United States do not base national compliance for hazardous area products on the IEC 60079 series of standards. Instead, a separate range of UL (or CSA for Canada) standards exist that the equipment must comply with. The UL Listing indicates that products comply with the requirements of the standard and have been tested according to Canadian or US standards. Look out for the UL markings on the nameplates of the physical product and on any product literature shared by the manufacturer.
Explosion-proof lights are critical for hazardous locations where flammable gases, vapors, dusts, or liquids pose a high risk of explosions due to sparks or ignition sources. These locations include: