What is the preferred method for extinguishing a brake fire on the ground?

The preferred method for extinguishing a brake fire on the ground involves using a dry powder extinguisher. This type of extinguisher is particularly effective for fires involving flammable materials, as it works by smothering the flames and interrupting the chemical reaction involved in the fire. When it comes to brake fires, which can often be fueled by hot rubber, oils, and other flammable substances, dry powder agents create a barrier between the fuel and the oxygen, effectively extinguishing the fire without causing further damage.

Using water or foam for extinguishing a brake fire is not recommended, as these can potentially spread the fire or lead to further complications; for instance, water may cause a steam explosion if it comes into contact with hot surfaces. CO2 extinguishers are excellent for certain types of fires, especially those involving electrical equipment, but they may not be as effective against the composition of a brake fire, which often involves high temperatures and specific fuel sources that are not well addressed by CO2 alone. Therefore, dry powder extinguishers are the best choice for ensuring effective and safe extinguishment of brake fires on the ground.