Fire can be defined as a product of an exothermic response that produces light and heat. It also gives off smoke because of combustion.

To make a fire, there must be:

  • Oxygen
  • Fuel
  • Heat
  • Chemical oxidation

Fire Triangle

It comprises of the following elements that are needed to ignite the fire.

  • Heat: Ignites fire and keeps it ablaze.
  • Fuel: This is the component that burns.
  • Oxygen: Supports combustions.

For there to be fire, all the elements ought to be present. When it comes to extinguishing a fire, one or all the elements need to be disposed of for the fire to die down. Hence, you must understand this fire triangle before conducting a risk review.


Sources include:

  • Naked flame.
  • Hot processes and surfaces, lighting.
  • Defective electrical gear.
  • Friction.
  • Smoke supplies like a discarded cigarette and matches ends.
  • Excessively heated electrical equipment.


Sources include:

  • Waste product
  • Plastic
  • Types and Rubber
  • Flammable gases
  • Flammable liquids
  • Card and Paper
  • Chemical


Sources Include:

  • Surrounding air
  • Pyrotechnic
  • Oxidizing chemicals
  • Oxygen supplies