Class C fires involve which kind of hazard?

Class C fires involve which kind of hazard?

• A. Electrical
• B. Flammable Liquids
• C. Paper, Wood, Fabric
• D. Metal Dusts

Answer: (D)

Electrical hazards are the key concern with fires in this class. These fires involve energized electrical equipment or circuits, where the danger isn’t just burning fuel but the risk of electric shock or arcing. The safest approach is to de-energize the equipment if it can be done safely, and to use extinguishing agents that do not conduct electricity—such as certain dry chemical or CO2/halogenated extinguishers designed for electrical fires. Water or other conductive media must be avoided because they can energize conducting paths and worsen the danger. Metal dust fires, by contrast, fall under a different category that requires specialized extinguishing agents and procedures, not applicable to electrical fires.

Electrical hazards are the key concern with fires in this class. These fires involve energized electrical equipment or circuits, where the danger isn’t just burning fuel but the risk of electric shock or arcing. The safest approach is to de-energize the equipment if it can be done safely, and to use extinguishing agents that do not conduct electricity—such as certain dry chemical or CO2/halogenated extinguishers designed for electrical fires. Water or other conductive media must be avoided because they can energize conducting paths and worsen the danger.

Metal dust fires, by contrast, fall under a different category that requires specialized extinguishing agents and procedures, not applicable to electrical fires.