What is the minimum Class A rating required for a single fire extinguisher in light and ordinary hazard occupancy?

The minimum Class A rating required for a single fire extinguisher in light and ordinary hazard occupancy is 2-A. This rating indicates that the extinguisher is capable of extinguishing a fire fueled by materials such as wood, paper, or cloth, which are common in these types of occupancies.

Light and ordinary hazard occupancies typically include areas where combustibles are present in low to moderate quantities, making the ability to combat a fire involving these materials essential. The 2-A rating signifies the extinguisher is effective against typical Class A fires with a minimum effective fire-fighting capability equivalent to 2.5 gallons of water, which is a standard measure of effectiveness in extinguishing such fires.

In summary, a 2-A rating ensures that the extinguisher is suitable for the level of risk present in light and ordinary hazard occupancies, providing adequate protection against potential fire risks.