What type of fire extinguisher is most suitable for electrical fires?

The CO2 extinguisher is the most suitable choice for electrical fires due to its effective method of suppressing flames without conducting electricity. Carbon dioxide works by displacing oxygen in the environment around the fire, which is essential for combustion, and it does so without leaving any residue. This is particularly important in the case of electrical fires, as many extinguishing agents can conduct electricity or leave harmful residues that might cause further electrical issues.

Water and foam extinguishers should be avoided in electrical fires because water is a conductor, and applying it could lead to electrocution or worsen the situation. Dry chemical extinguishers can be used for electrical fires but may leave a residue that can be damaging or require additional cleanup, making CO2 a cleaner and safer option for the situation.