Which substance is used to combat an electrical fire?

Halon is particularly effective for combating electrical fires because it works by interrupting the chemical reaction that fuels the fire. This substance is a clean agent, meaning it can extinguish a fire without leaving residue that could damage sensitive electronic equipment. This is crucial in environments like electrical rooms or data centers where water or foam might cause further damage to machinery and electronics.

In addition to being non-conductive, Halon also has a high efficiency in terms of extinguishing fires quickly and effectively, which is essential in an emergency situation. Its use, however, has become restricted due to environmental concerns, but it remains a standard choice in specific applications where its benefits can outweigh those concerns regarding its ozone-depleting properties.

Water, while commonly used for many types of fires, poses a serious risk when applied to electrical fires as water is a conductor of electricity and can lead to electrocution or worsen the situation. Carbon dioxide is another clean agent similar to Halon but may not be as effective in all situations, especially in enclosed spaces. Foam is effective for flammable liquids but isn't recommended for electrical fires since it may conduct electricity.