Class C extinguishers are designed for fires involving which equipment or materials?

Class C extinguishers are designed for fires involving which equipment or materials?

• A. Flammable Liquids
• B. Ordinary Combustibles
• C. Electrical Equipment
• D. Combustible Metals

Answer: (C)

Class C extinguishers are designed for fires involving electrical equipment, especially when the equipment is energized. The important point is using a suppressant that won’t conduct electricity, such as dry chemical powders or clean agents like CO2, so you can smother the fire without creating a shock hazard. Water-based extinguishers are not suitable here because water conducts electricity and can energize the equipment. After power is shut off, the fire’s class may change depending on the fuel present, but the designation Class C specifically targets electrical fires. Fires involving flammable liquids, ordinary combustibles, or combustible metals require different extinguisher types and methods.

Class C extinguishers are designed for fires involving electrical equipment, especially when the equipment is energized. The important point is using a suppressant that won’t conduct electricity, such as dry chemical powders or clean agents like CO2, so you can smother the fire without creating a shock hazard. Water-based extinguishers are not suitable here because water conducts electricity and can energize the equipment. After power is shut off, the fire’s class may change depending on the fuel present, but the designation Class C specifically targets electrical fires. Fires involving flammable liquids, ordinary combustibles, or combustible metals require different extinguisher types and methods.