Which fire class is associated with electrical equipment?

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

Answer: (C)

Fires are categorized by the material fueling them. Electrical equipment fires are placed in their own category to reflect the hazards of energized electrical sources. That category is the one meant for electrical equipment, so it’s the correct match. In contrast, ordinary combustibles like wood and paper fall under the category for common solids; flammable liquids fall under the liquid category; and certain reactive metals fall under the metal category—none of which describe electrical equipment.