fireprevention.ppt fireprevention.ppt fireprevention.ppt

fire prevention

1. FIRE PREVENTION
Understanding Its Causes

2. 2
THE FIRE TRIANGLE
For a fire to start three conditions must
be met at the same time:
FUEL
OXIDIZER IGNITION

3. 3
THE FIRE TRIANGLE

Fuels are materials that burn

The higher the temperature, the easier and
quicker they burn
Common fuels include:
-- Solvents such as acetone, alcohols,
and toluene
--Gases such as acetylene and propane
--Solids such as wood and paper

4. 4
THE FIRE TRIANGLE

Oxidizers: Oxygen or other substances
capable of releasing oxygen to a fire

Common oxidizers include:

acids, especially nitric and perchloric acids

chlorine dioxide

Others such as potassium permanganate
and potassium chlorate

5. 5

An ignition source can be:

A Spark

Static electricity

Arcs from electrical equipment, faulty or
otherwise

A lit cigarette

A hot light bulb
THE FIRE TRIANGLE

6. 6
THE FIRE TRIANGLE

Fire prevention consists of making
sure that the three legs of the fire
triangle never meet
FUEL
OXIDIZER IGNITION

7. 7
FIRE PROPAGATION

Recent studies indicate that the
spread or propagation of a fire is also
dependent on a fourth factor - the
chemical chain reactions that can
occur as a result of heat produced by
the fire.