Which class of fire extinguisher is used for fires involving energized electrical equipment?

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Prepare for the Agriscience Foundation CFE Exam. Study effectively with multiple choice questions, each enriched with hints and explanations to boost your knowledge. Ace your exam with confidence!

Multiple Choice

Which class of fire extinguisher is used for fires involving energized electrical equipment?

Explanation:
When a fire involves energized electrical equipment, you must use an extinguisher with a non-conductive extinguishing agent to avoid creating a shock hazard. Extinguishers designated for electrical fires are Class C; they typically use dry chemical powder or CO2, which do not conduct electricity and can suppress the flame without conducting current. Water-based extinguishers are avoided because water can conduct electricity and pose a serious shock risk around live equipment. If possible, shut off the power first, then use the appropriate extinguisher for the fuel type of the fire.

When a fire involves energized electrical equipment, you must use an extinguisher with a non-conductive extinguishing agent to avoid creating a shock hazard. Extinguishers designated for electrical fires are Class C; they typically use dry chemical powder or CO2, which do not conduct electricity and can suppress the flame without conducting current. Water-based extinguishers are avoided because water can conduct electricity and pose a serious shock risk around live equipment. If possible, shut off the power first, then use the appropriate extinguisher for the fuel type of the fire.

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