Fire Extinguisher: definition , classification

 


Fire Extinguisher:


Definition: A fire extinguisher is a device used to put out or control small fires in emergency situations.



Classification:


1. Class A: For ordinary combustibles (paper, wood, cloth)

2. Class B: For flammable liquids (gasoline, oil, paint)

3. Class C: For electrical fires (appliances, wiring)

4. Class D: For combustible metals (magnesium, titanium)

5. Class K: For cooking oils and greases


Types of Fire Extinguishers:


1. Water Extinguishers

2. Foam Extinguishers

3. Dry Chemical Extinguishers

4. Carbon Dioxide Extinguishers

5. Halon Extinguishers

6. Clean Agent Extinguishers


Working Principle:


1. Cooling: Water extinguishers cool the fuel to stop the fire.

2. Smothering: Foam extinguishers smother the fire by cutting off oxygen.

3. Starving: Dry chemical extinguishers starve the fire by removing oxygen.

4. Displacement: Carbon dioxide extinguishers displace oxygen to stop the fire.


Benefits:


1. Quick Response: Fire extinguishers provide immediate response to fires.

2. Effective: Fire extinguishers are effective in putting out small fires.

3. Easy to Use: Fire extinguishers are simple to operate.

4. Portable: Fire extinguishers are lightweight and easy to move.

5. Safety: Fire extinguishers provide a safe way to respond to fires.

6. Compliance: Fire extinguishers meet regulatory requirements.

7. Protection: Fire extinguishers protect people, property, and assets.


Remember to always follow the PASS method when using a fire extinguisher:


1. P - Pull the safety pin

2. A - Aim the nozzle

3. S - Squeeze the handle

4. S - Sweep the nozzle