What are Class I locations primarily associated with?

Class I locations are primarily associated with environments where flammable gases or vapors may be present in sufficient quantities to create explosive or ignitable mixtures. These areas often include locations such as petroleum refineries, chemical plants, and areas where solvents or fuels are handled. The presence of these substances necessitates careful consideration of electrical equipment and installations to minimize the risk of ignition.

Electrical equipment used in Class I locations must comply with stringent standards to ensure enhanced safety. This includes using equipment that is specifically designed to prevent ignition under these hazardous conditions. The classification system for hazardous locations is crucial for protecting workers and facilities from potential explosions or fires arising from the presence of flammable materials.