Fire safety training, at its most basic, is based upon the principle of keeping fuel sources and ignition sources separate.
Three things must be present at the same time to produce fire:
1. Enough oxygen to sustain combustion.
2. Enough heat to reach ignition temperature.
3. Some fuel or combustible material.
These three elements form the fire triangle that is necessary for a fire to
burn.
Together, they produce the chemical reaction that is fire. Take away any of
these things and the fire will be extinguished.
Fire Extinguisher Training
Fires are classified according to the type of fuel that is burning. If you use the wrong type of extinguisher on the wrong class of fire, you might make matters worse. It is very important to understand the four different fire (fuel)classifications:
Class A: Fires in ordinary combustibles, such as wood, cloth, paper, rubber, and many plastics.
Class B: Fires in flammable or combustible liquids, flammable gasses, greases, and similar materials.
Class D: Fires in certain combustible metals, such as magnesium, titanium, zirconium, sodium and potassium. These fires require Metal-X, foam, and other special extinguishing agents.