Toolbox Talks – Fire In The Workplace
Our today’s Toolbox Talks topic is Fire In The Workplace.
WHAT IS FIRE :
- Fire is the process of rapid oxidation at high temperatures. This releases hot gases, light, and invisible forms of radiation energy.
- Most people use the words fire and combustion interchangeably. Fire is a byproduct of a rapid combustion reaction.
- Combustion is define as the self-sustaining process of rapid oxidation of combustible material (fuel), producing heat and light.
- Oxidation is the process of oxygen chemically combining with another material.
Fire In The Workplace
The Fire Triangle:
The triangle illustrates the rule that in order to ignite and burn, a fire requires three elements: heat, fuel, and an oxidizing agent, usually oxygen. The fire is prevented or extinguished by removing any one of them. A fire naturally occurs when the elements are combined in the right mixture.
Ignition Can Be:
- Electrical
- Chemical
- Thermal
- Radioactive
Fuel Can Be:
- Solid
- Liquid
- Gases
Oxygen:
- The fuel air mixture must be right
- People need 19.5 % to live
- Fire needs only 16 %
The Fire Tetrahedron
For many years the concept of fire symbolizes by the Triangle of fuel, heat, and oxygen. fire research added a fourth element “chemical chain reaction” .chemical chain reaction is a necessary component of fire. The fire triangle changed to a fire tetrahedron to reflect this fourth element. A tetrahedron can be described as a pyramid which is a solid having four plane faces. Essentially all four elements must be present for fire to occur, fuel, heat, oxygen, and a chemical chain reaction. if you remove any of this essential element then you will see fire being extinguished
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