Which method is used for extinguishing fires involving electrical equipment?

Dry chemical agents are an effective method for extinguishing fires involving electrical equipment. These agents work by interrupting the chemical reaction of the fire, which ultimately stops the combustion process. They are especially useful because they can safely extinguish fires involving energized electrical equipment without causing a risk of electrical shock.

Dry chemical agents, such as those containing monoammonium phosphate, are classified as non-conductive and can be used on Class C fires, which are specifically related to electrical hazards. In contrast, the use of water on electrical fires can present a significant risk of electrocution and should be avoided. Foam can also conduct electricity and is not recommended for electrical fires. While CO2 extinguishers can also be used for electrical fires due to their non-conductive properties, dry chemical agents are often preferred in many firefighting situations because of their effectiveness against a broader range of fire types, including those caused by flammable liquids and gases.

Understanding the specific fire fighting agents available and their appropriate uses is crucial for firefighters to ensure effective fire suppression while maintaining safety.