What is a light for hazardous location?

What does a hazardous site light mean?
A hazardous site light, often referred to as hazardous location lighting, is a kind of lighting intended to function safely in areas where flammable gases, vapours, dust, or fibres may be present, possibly creating explosive atmospheres. These lights are designed to stop nearby dangerous materials from igniting. Here are some essential features and things to think about while choosing lighting for hazardous locations:

Explosion-Proof Design: In order to keep the lights from setting the surrounding area on fire, the fixture is designed to trap any sparks or heat produced inside. They often feature sturdy casings composed of steel or aluminium.

Ingress Protection: To stop moisture and dust from entering and creating a dangerous environment, they usually have a high IP (Ingress Protection) rating.

Certifications and Standards: Depending on the area and the particular kind of danger present, hazardous site lights must adhere to a number of safety standards and certifications, including ATEX, IECEx, UL844, and others.

Categories of Risks:

Class I: Areas containing vapours or gases that may catch fire.

Class II: Areas with dust that may catch fire.

Class III: Areas containing flyings or ignitable fibres.

Divisions and Zones:

Zones: Mainly used in European and global standards; for example, gases are classified into Zones 0, 1, and 2, while dust is classified into Zones 20, 21, and 22.

Divisions: Referred to in North American standards as Division 1 (hazards present during regular operation) and Division 2 (hazards present only under unusual circumstances).

Materials and Construction: Materials for hazardous site lights are selected based on their longevity and capacity to withstand high temperatures, chemical exposure, and corrosion.

Types of Lighting: Contains a range of fixtures designed for dangerous conditions, including emergency lights, portable lights, high bay lights, and floodlights.

Applications: Frequently used in sectors like mining, oil and gas, chemical factories, grain processing, wastewater treatment facilities, and other places where explosive environments may arise.