What extinguishing agent is suitable for use on a Class C fire?

What extinguishing agent is suitable for use on a Class C fire?

• A. Water
• B. Foam
• C. Carbon Dioxide
• D. Dry Chemical

Answer: (C)

When a fire involves energized electrical equipment, the priority is to use an extinguishing agent that won’t conduct electricity or leave a residue that could cause further damage. Water and foam are not suitable because they can create a conductive path or short circuit the equipment. Carbon dioxide offers a safe, non-conductive option that blankets the area and displaces oxygen to knock down the flame quickly, without leaving a conductive or corrosive residue on the equipment. This makes it especially effective for electrical fires in enclosed spaces. Dry chemical can be used on electrical fires as well, but the powder can contaminate and damage sensitive components and is harder to clean up, so carbon dioxide is the better choice in many situations.

When a fire involves energized electrical equipment, the priority is to use an extinguishing agent that won’t conduct electricity or leave a residue that could cause further damage. Water and foam are not suitable because they can create a conductive path or short circuit the equipment. Carbon dioxide offers a safe, non-conductive option that blankets the area and displaces oxygen to knock down the flame quickly, without leaving a conductive or corrosive residue on the equipment. This makes it especially effective for electrical fires in enclosed spaces. Dry chemical can be used on electrical fires as well, but the powder can contaminate and damage sensitive components and is harder to clean up, so carbon dioxide is the better choice in many situations.