What type of fire extinguisher is used for electrical fires?

The correct choice for extinguishing electrical fires is the dry chemical extinguisher. This type of extinguisher contains a dry powder that effectively interrupts the chemical reaction of the fire, making it suitable for Class C fires, which involve energized electrical equipment.

Using a dry chemical extinguisher is crucial because it does not conduct electricity, thus ensuring the safety of the person using it and preventing further hazards. Additionally, it can smother the fire by displacing oxygen and cooling the fire's heat, providing a dual approach to extinguishing the flames.

In contrast, other types of extinguishers are less suitable for electrical fires. Water extinguishers can conduct electricity and pose a severe danger by increasing the risk of electric shock. Foam extinguishers are also ineffective for electrical fires because they can conduct electricity and are designed for flammable liquid fires instead. While carbon dioxide extinguishers are appropriate for electrical fires due to their non-conductive nature and ability to displace oxygen, the versatility and effectiveness of dry chemical extinguishers in various fire scenarios often make them the preferred choice in firefighting training and safety protocols.