Fire Safety for Electronics What class of fire extinguisher should be used to safely extinguish an electrical (energized equipment) fire, such as a computer?

Introduction / Context:
Electronics and computers are powered electrical equipment. Using the correct fire extinguisher class prevents electrical shock, equipment damage, and the spread of fire. Safety protocols require choosing extinguishing agents compatible with energized circuits.

Given Data / Assumptions:

• The computer is still connected to power (energized).
• We are selecting the appropriate extinguisher class according to common standards.
• Water-based agents are dangerous on live electrical circuits.

Concept / Approach:

Class C fire extinguishers are designed for electrical fires involving energized equipment. They use non-conductive agents (such as CO2 or dry chemicals) to smother the fire while minimizing electrical conduction risk. Class A is for ordinary combustibles (wood, paper), and water hoses or foams can conduct electricity, increasing hazard.

Step-by-Step Solution:

Verification / Alternative check:

Safety training materials and extinguisher labeling confirm that Class C is intended for energized electrical equipment. CO2 and certain dry chemical extinguishers carry the Class C rating.

Why Other Options Are Wrong:

Fire hose / water foam: Potentially conductive; unsafe on live circuits. Class A: For ordinary combustibles, not energized equipment. None of the above: Incorrect because Class C is the correct, standard choice.

Common Pitfalls:

Attempting to use water; forgetting to cut power when possible; not checking extinguisher ratings; inadequate training leading to improper aiming or distance.

Final Answer:

Class C extinguisher