Energized electrical equipment is categorized as a _____ fire.

Energized electrical equipment is categorized as a _____ fire.

• A. Class A
• B. Class B
• C. Class C
• D. Class D

Answer: (C)

Fires involving energized electrical equipment are Class C fires. The key factor here is that electricity is part of the hazard, so the priority is to suppress the flame without creating a shock risk. Because electricity can still be present, you use extinguishing agents that don’t conduct electricity, such as dry chemical powders or clean agents like CO2, and you should shut off power if it can be done safely. Water-based extinguishers must be avoided on energized electrical fires because water conducts electricity and can cause electrocution. Fires in ordinary combustibles, flammable liquids, or metals involve different fuels and hazards, so they don’t match the electrical-risk scenario.

Fires involving energized electrical equipment are Class C fires. The key factor here is that electricity is part of the hazard, so the priority is to suppress the flame without creating a shock risk. Because electricity can still be present, you use extinguishing agents that don’t conduct electricity, such as dry chemical powders or clean agents like CO2, and you should shut off power if it can be done safely. Water-based extinguishers must be avoided on energized electrical fires because water conducts electricity and can cause electrocution. Fires in ordinary combustibles, flammable liquids, or metals involve different fuels and hazards, so they don’t match the electrical-risk scenario.