That being said, they do require special attention because they can be especially difficult to extinguish.
Thankfully, these fires are not as common as the other classes. Class D fires involve combustible metals such as magnesium, lithium, and titanium. Metallic substances can also catch on fire. They can also happen in a commercial setting, like a data center or construction site. An electrical failure from your dryer having too much lint or an old oven all fall into this category. This could be anything like wiring, controls, motors, machinery, or appliances. This third type of fire involves energized electrical equipment. You can also use foam or CO2 fire suppression equipment. Don't let water fool you! The best way to deal with Class B fires is by smothering them, thereby removing oxygen. Just because something is a liquid doesn't mean it cannot catch fire. These fires are a bit different in that they involve flammable liquids, solvents, oil, gasoline, paints, lacquers, and other oil-based products. If there’s an abundance of fuel present, like paper in a trash can, these fires can intensify quickly. If it is a solid material that can burn, it's at risk for a Class A fire. These fires involve common combustibles such as wood, paper, fabric, rubber, trash, and plastics. They are: Class A FiresĬlass A fires are the most common of the 5 different classes of fires.
In total, there are five classes of fires. It also tells us how dangerous it is as well as the best way to suppress or put it out. Vanguard reminds us that a fire’s class determines how quickly it burns. It's important to know that there are actually several classes of fires.
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