Which fire extinguisher is non-conductive and designed for electrical fires?

• A. Type A
• B. Type C
• C. Type B
• D. Type D

Answer: (B)

Fires involving live electrical equipment require a non-conductive extinguishing agent so you don’t create a path for electricity. Extinguishers designated for electrical fires, Class C, use non-conductive agents (such as certain dry chemical powders or CO2) and are intended to suppress flames without conducting electricity. This makes them the best choice for electrical fires because they safely interrupt the current while putting out the fire. Other extinguishers target different fuels—ordinary combustibles, flammable liquids, or burning metals—and can be conductive or inappropriate for electrical situations, so they aren’t the right fit for electrical fires.