Phy sci fire prevention

• Fire


  Combustion or burning of substances combined chemically with oxygen from the air and typically giving off light and heat
• Fire triangle


  • Oxygen is needed to sustain combustion
  • Fuel or combustible material is needed
  • Sufficient heat is needed to raise the material to its ignition temperature
• Fire tetrahedron


  • Oxygen is needed to sustain combustion
  • Fuel or combustible material is needed
  • Sufficient heat is needed to raise the material to its ignition temperature
  • A chemical chain reaction should take place in the material
• Stages of fire


  • Ignition stage
  • Growth
  • Fully developed
  • Decay (burnout)
• Fire continues until all of the available fuel is consumed, the fuel/oxygen is removed, the temperature is reduced by cooling, and the number of molecules is reduced and the chain reaction is broken
• Classes of fire


  • Class A
  • Class B
  • Class C
• Types of fire


  • Fire due to natural hazards
  • Fire due to human-made conditions
  • Fire due to mismanagement
• The government agency responsible for responding to fire is the Bureau of Fire Protection (BFP)
• Overheating of electrical wiring


  Causes fire due to human-made conditions
• Adding more fuel to the fire cannot stop a fire from happening
• Using water can put off a fire
• Adding more oxygen to the fire cannot stop a fire from happening