CO2 is commonly used to extinguish fires in electrical equipment fires. Which class best describes these fires?

CO2 is commonly used to extinguish fires in electrical equipment fires. Which class best describes these fires?

• A. CLASS A
• B. CLASS B
• C. CLASS C
• D. CLASS D

Answer: (C)

Fires involving energized electrical equipment are classified as electrical fires, known as Class C. CO2 extinguishers are well suited for these fires because CO2 is non-conductive and leaves no residue that could damage sensitive electrical gear or cause short circuits. It works by displacing the surrounding air and suffocating the flame, which is effective when power may still be on. This makes CO2 a good choice for small to moderate electrical fires in enclosed spaces where using water would be dangerous. Remember, CO2 isn’t ideal for large fires or spaces with people present due to oxygen displacement, and it isn’t the right tool for fires involving ordinary fuels, flammable liquids, or metals.

Fires involving energized electrical equipment are classified as electrical fires, known as Class C. CO2 extinguishers are well suited for these fires because CO2 is non-conductive and leaves no residue that could damage sensitive electrical gear or cause short circuits. It works by displacing the surrounding air and suffocating the flame, which is effective when power may still be on. This makes CO2 a good choice for small to moderate electrical fires in enclosed spaces where using water would be dangerous. Remember, CO2 isn’t ideal for large fires or spaces with people present due to oxygen displacement, and it isn’t the right tool for fires involving ordinary fuels, flammable liquids, or metals.