Which of the following fire extinguishing agents is required to be nonconductive?

Class C fire extinguishing agents are specifically required to be nonconductive because they are designed to be used on fires involving electrical equipment. Electrical fires pose a significant risk of shock and electrocution, making it essential to ensure that any agent used does not conduct electricity. Nonconductive agents help to mitigate this risk by preventing the potential for electrical conduction and enhancing the safety of the user when extinguishing a fire involving electrical sources.

In contrast, Class A agents are used for ordinary combustibles, Class B agents are for flammable liquids, and Class K agents are intended for cooking oils and fats. While these agents are effective for their respective fire classes, they do not have the same specific requirement for nonconductivity, as they are not used on electrical fires. Understanding the properties and proper applications of fire extinguishing agents is crucial for effective fire safety management.