Understanding Hazardous Location Classifications

Properly understanding hazardous location classifications is vital for ensuring safety in dangerous environments. This blog provides a comprehensive guide to these classifications and their importance.

Classification Systems

North America: Uses a Class and Division system (Class I, II, III, Division 1, 2).

• Class I: Environments with flammable gasses or vapors.
• Class II: Environments with combustible dust.
• Class III: Environments with ignitable fibers and flyings.
• Division 1: High likelihood of hazard presence under normal operating conditions.
• Division 2: Low likelihood of hazard presence under normal operating conditions.

Europe and International: Uses ATEX and IECEx zone classifications (Zone 0, 1, 2).

• Zone 0: Continuous presence of hazard.
• Zone 1: Intermittent presence of hazard.
•  Zone 2: Rare presence of hazard.

Practical Examples

• Gas Stations: Typically Zone 2/Class I, Division 2. Commonly found near fuel storage and dispensing areas, these locations require sensors and devices that can safely operate in the presence of flammable vapors.
• Chemical Plants: Zones vary depending on processes and areas. Chemical plants may include multiple classifications based on the specific processes and materials used, requiring a combination of intrinsically safe and explosion-proof devices to ensure safety.

Importance of Proper Classification

Properly classifying hazardous locations ensures that the right safety measures and equipment are used. This minimizes the risk of accidents and enhances the safety and efficiency of operations. Understanding the specific classification of an environment allows for the selection of appropriate sensors and devices, ensuring compliance with safety standards and reducing the risk of incidents.

Get in Touch with an Expert

Ensure the safety of your operations by consulting with an expert at Everight Position. Contact us today to discuss your specific needs and how we can help implement the best solutions for your hazardous environments.