Which class of fire consists of Electronic Equipment?

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

Answer: (C)

Electrical fires, involving energized electronic equipment, are categorized as Class C. The important point is that the hazard is electrical, so you use non-conductive extinguishing methods and, when safe, disconnect power. Water or other conductive agents can pose a risk by conducting electricity. Class C covers fires in electrical equipment like computers, servers, wiring, and switchgear. The other classes map to different fuels: Class A for ordinary combustibles like wood and paper, Class B for flammable liquids, and Class D for combustible metals.