What classifies a location as a Class 1 Division 2 hazardous area?

A location is classified as a Class 1 Division 2 hazardous area due to the presence of ignitable concentrations of flammable gases under abnormal operating conditions. This classification recognizes that while flammable gases may not be typically present, there is a potential for an accumulation of such gases as a result of an abnormal situation, such as a leak or equipment failure.

In these areas, the risk of ignition exists, but it is limited to those unusual circumstances, protecting workers and equipment. Proper safeguards must be implemented to mitigate the risk, as areas classified in this way still require specific handling and safety protocols.

In contrast, the presence of radioactive materials does not pertain to this classification, as it is related to a different type of hazard entirely. Similarly, flammable gases that are present during normal conditions would classify an area as Class 1 Division 1, indicating that the risk is constant and constant precautions must be maintained. Lastly, corrosive substances would typically lead to a different classification focused on their properties, rather than fire or explosion hazards associated with flammable gases.