Which extinguisher is commonly used for live electrical equipment?

The use of a Class C extinguisher is specifically designed for fires involving live electrical equipment. These extinguishers use non-conductive agents, such as carbon dioxide or dry chemical agents, which do not conduct electricity. This characteristic is crucial for safely extinguishing electrical fires without the risk of electrocution or further igniting the equipment.

In a situation where electrical equipment is involved, it is essential to use an extinguisher that will not lead to conductivity and create hazards for the user. Therefore, a Class C extinguisher is the appropriate choice whenever you're dealing with live electrical fires.

Understanding the application of fire extinguishers is vital not only for safety but also for effective fire response. Other classes of extinguishers, such as Class A, which is suited for ordinary combustibles, Class B for flammable liquids, and Class D for combustible metals, would not be appropriate for live electrical fires due to their potential to cause more harm in such situations.