What is the best way to extinguish a Class C fire?

What is the best way to extinguish a Class C fire?

• A. Use Water
• B. Shut off the Power and treat it as a Class A or B fire
• C. Use Foam
• D. Use Dry Chemical

Answer: (B)

Electrical fires are dangerous mainly because electricity can shock or arc. The safest and most effective first step is to shut off the power to remove the energy source. Once the circuit is de-energized, you can choose an extinguishing approach based on the burning material, treating it like a Class A fire for ordinary combustibles or Class B for flammable liquids as needed. Water or foam should not be used while the equipment is live because they can conduct electricity and pose a serious shock risk; with the power off, you can use appropriate methods for the fuel involved. The key idea is to eliminate the electrical energy first, then apply the suitable extinguishing method.