What type of fire extinguisher is appropriate for electrical fires?

A dry chemical extinguisher is appropriate for electrical fires primarily because it effectively interrupts the chemical reaction of the fire. These extinguishers typically contain a variety of agents, such as ammonium phosphate, which can smother the flames and inhibit re-ignition. They are designed to be non-conductive, making them safe to use on live electrical equipment.

In addition to their effectiveness against electrical fires, dry chemical extinguishers can also handle other types of fires, such as those involving flammable liquids and ordinary combustibles. This versatility makes them a common choice in many environments where electrical equipment is present.

Using water extinguishers or foam extinguishers on electrical fires poses the risk of electrical shock and might further escalate the fire, as electricity can travel through water. Similarly, while carbon dioxide extinguishers can be effective on electrical fires, they are typically less versatile in terms of fire classes than dry chemical extinguishers, making the latter the more comprehensive choice for addressing electrical hazards.