What type of fire extinguisher is suitable for use on Class C fires?

A dry chemical extinguisher is suitable for use on Class C fires because Class C fires involve energized electrical equipment. These extinguishers are specifically designed to interrupt the chemical reaction of the fire, often using substances like sodium bicarbonate or potassium chloride. They effectively render the electrical current inert while smothering the flames, making them a safe choice for electrical fires.

Other types of extinguishers, like water and foam, are inappropriate because they can conduct electricity and pose a risk of electrocution. Additionally, while CO2 extinguishers are also effective on Class C fires, they primarily displace oxygen and can be less effective for larger fires. In contrast, dry chemical extinguishers provide versatility across various classes of fire, making them particularly advantageous for unpredictable situations involving electrical hazards.