Which class covers electrical fires such as motors and switches?

Which class covers electrical fires such as motors and switches?

• A. Class A
• B. Class B
• C. Class C
• D. Class D

Answer: (C)

Fires involving energized electrical equipment require extinguishing methods that won’t conduct electricity. That’s why these are categorized as Class C fires. Motors and switches are common energized electrical devices, so they fit this category. Use non-conductive extinguishing agents such as dry chemical powders or CO2 on these fires because water would create a shock hazard and could further spread the current. If the power can be safely turned off, the fire may then be addressed under the appropriate non-electrical class, but for a live electrical fire, Class C is the correct category.

Fires involving energized electrical equipment require extinguishing methods that won’t conduct electricity. That’s why these are categorized as Class C fires. Motors and switches are common energized electrical devices, so they fit this category. Use non-conductive extinguishing agents such as dry chemical powders or CO2 on these fires because water would create a shock hazard and could further spread the current. If the power can be safely turned off, the fire may then be addressed under the appropriate non-electrical class, but for a live electrical fire, Class C is the correct category.