Answer :
Class C fires are fueled by energized electrical equipment and are extinguished using non-conducting agents whereas Class D fires are fueled by combustible metals and require specialized extinguishing agents and techniques.
Class C fires involve energized electrical equipment or appliances. These fires pose a unique challenge because using water or other conducting agents can result in electric shock or the spread of the fire. Non-conducting agents are used to extinguish Class C fires.
These agents, such as dry chemical powders or carbon dioxide (CO2), do not conduct electricity and can safely be used on electrical fires. They work by smothering the fire and interrupting the chemical reaction that sustains it.
Class D fires, on the other hand, are fueled by combustible metals like magnesium, lithium, and sodium. These fires require specialized extinguishing agents and techniques due to the unique properties of these metals.
Water, foam, or conventional fire extinguishers are ineffective against Class D fires as they can react violently with the metal and even intensify the fire.
To extinguish Class D fires, specific extinguishing agents such as dry powders specifically designed for metal fires are used. These powders work by coating the burning metal and separating it from the oxygen in the air, thereby preventing the fire from spreading.
Additionally, techniques like heat reduction and containment may be employed to control Class D fires safely. It is crucial to remember that fighting fires, especially those involving electricity or combustible metals, should primarily be left to trained professionals.
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What are the differences between Class C fires and Class D fires in terms of fuel and extinguishing methods?
