Dry chemical wheeled units are rated for which classes of fire?

Dry chemical wheeled units are versatile firefighting tools designed to combat various classes of fires. They are particularly effective against Class A, B, and C fires.

Class A fires involve ordinary combustible materials such as wood, paper, and textiles. Although dry chemical agents are primarily known for their efficiency against flammable liquids and gases (Class B and C), certain formulations of dry chemical agents can also suffocate and cool Class A materials, making them suitable for handling these types of fires.

Class B fires consist of flammable liquids, such as gasoline, oil, and grease. Dry chemical agents are particularly effective for extinguishing these fires as they work by interrupting the chemical reaction of fire, often through suppression mechanisms that form a barrier between the fuel and the flames.

Class C fires involve energized electrical equipment. Non-conductive dry chemical agents are ideal for tackling these fires safely, as they do not conduct electricity and can be applied without the risk of shock.

In summary, the broad applicability of dry chemical wheeled units across multiple classes of fires makes them essential for firefighting operations, thereby confirming that they are rated for Class A, B, and C fires.