What type of materials does a Class D fire involve?

Class D fires specifically involve combustible metals, which can burn at extremely high temperatures and react with water and other substances. This category includes metals such as magnesium, titanium, sodium, and potassium. The unique properties of these metals require specialized extinguishing agents that are specifically designed to handle Class D fires, as typical extinguishing methods may not be effective and can even exacerbate the situation.

Understanding Class D fires is crucial for safety in environments where these metals are present, such as manufacturing facilities or laboratories. The other types of materials mentioned in the options pertain to different classes of fires: fabrics and wood relate to Class A fires, flammable gases pertain to Class B fires, and electrical equipment to Class C fires. Recognizing the distinct characteristics of each fire class helps in implementing appropriate firefighting measures.