Which type of fire extinguisher is suitable for electrical fires?

The CO2 extinguisher is particularly suitable for electrical fires because it works by displacing oxygen, effectively suffocating the fire without leaving any residue that could potentially cause damage to sensitive electrical equipment. Carbon dioxide is a non-conductive gas, making it safe to use on energized electrical systems.

Using water or foam extinguishers on electrical fires is unsafe, as both methods can conduct electricity, posing a risk to the operator. Water can also cause further damage to electronic devices and circuits. Dry powder extinguishers may be used on electrical fires as well; however, they often leave a residue that can damage electronic components if not cleaned thoroughly, making CO2 a preferred choice in many scenarios.