What type of fire extinguisher should be used on an electrical fire?

Using a CO2 extinguisher on an electrical fire is appropriate because carbon dioxide is an effective agent for cooling and displacing oxygen, which is necessary for combustion. CO2 extinguishers do not leave any residue, making them particularly suitable for electronic equipment, as they won’t cause damage or create further fire hazards by conductive contamination.

In the context of electrical fires, it is crucial to use an extinguisher that does not conduct electricity, and CO2 meets this requirement. It is safe to use on energized electrical equipment, unlike water or foam extinguishers, which can conduct electricity and potentially cause electric shock or worsen the fire. Dry chemical extinguishers can also be effective; however, they may leave a residue and may not be the preferred choice in environments with sensitive electrical equipment. Thus, CO2 is the most suitable option for handling electrical fires safely and effectively.