Which extinguisher class is intended for electrical equipment fires?

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

Answer: (C)

Electrical fires require extinguishing methods that won’t conduct electricity. Class C extinguishers are designed for fires involving electrical equipment and use nonconductive agents like dry chemical or carbon dioxide, allowing you to fight the fire without creating a shock hazard. Avoid using water on electrical fires because it conducts electricity and poses a serious electrocution risk. Other extinguisher types target different fuels—ordinary combustibles, flammable liquids, or metals—and aren’t appropriate for energized electrical equipment. So the extinguisher class intended for electrical equipment fires is Class C.