Under what condition can appliances be located in hazardous locations?

Appliances can be located in hazardous locations if they have been listed and approved for such use by recognized testing laboratories. This certification indicates that the appliance has been rigorously evaluated to meet specific safety standards, ensuring it can operate safely in environments that may pose risks of fire, explosion, or other hazards. Meeting these requirements is crucial because hazardous locations have defined safety regulations to minimize risks associated with flammable gases, vapors, or dust.

When appliances are listed and approved, it means they adhere to the necessary standards for construction, installation, and performance, which are tailored to the unique conditions of hazardous areas. This significantly mitigates the risks that would otherwise be present if unapproved appliances were used in such environments. Therefore, compliance with these listings is a fundamental requirement for ensuring safety when placing appliances in potentially dangerous locations.