The U.L.C. classification rating of 10 B.C. indicates approval for what?

• A. 10 square feet of a chemical fire
• B. 10 square feet of an oil or electrical fire
• C. 10 square feet of a gas fire
• D. 10 square feet of a wood fire

Answer: (B)

The U.L.C. classification rating of 10 B.C. indicates that the fire extinguisher is approved for dealing with oil and electrical fires. The "B" in the classification specifically signifies that it is suitable for flammable liquids, including oils, as well as the potential ignition sources from electrical equipment. This is crucial in environments where electrical equipment is present, as using the wrong type of extinguisher on an electrical fire can result in serious hazards, including the risk of electrocution.

Understanding the rating helps ensure that the appropriate fire extinguishing agent is applied to the correct type of fire, thus enhancing safety and effectiveness in the event of a fire emergency. This specific approval reflects the capability and testing of the extinguisher to safely handle oil and electrical fires, making it an important factor for anyone involved in mine operations or similar environments.