Smoke color for Class Charlie fire?

Smoke color for Class Charlie fire?

• A. Red
• B. Green
• C. Black or brown
• D. Blue or white

Answer: (D)

Class Charlie fires are energized electrical fires, and the smoke that comes from burning electrical insulation and plastics is typically blue or white. This lighter, bluish-white smoke helps distinguish electrical fires from others, such as normal combustible fires that produce darker, black or brown smoke or certain materials that can produce green smoke in unusual scenarios. Recognizing blue or white smoke as a sign of electrical equipment burning guides you to actions like safely de-energizing the equipment if possible and using appropriate extinguishing agents (CO2 or dry chemical) rather than water, which can conduct electricity and pose a shock hazard.

Class Charlie fires are energized electrical fires, and the smoke that comes from burning electrical insulation and plastics is typically blue or white. This lighter, bluish-white smoke helps distinguish electrical fires from others, such as normal combustible fires that produce darker, black or brown smoke or certain materials that can produce green smoke in unusual scenarios. Recognizing blue or white smoke as a sign of electrical equipment burning guides you to actions like safely de-energizing the equipment if possible and using appropriate extinguishing agents (CO2 or dry chemical) rather than water, which can conduct electricity and pose a shock hazard.