FIRE RISK ASSESSMENT IN CONSTRUCTION - IDENTIFY SOURCES OF OXYGEN

 


FIRE RISK ASSESSMENT IN

 CONSTRUCTION - IDENTIFY 

SOURCES OF OXYGEN


FIRE RISK ASSESSMENT IN CONSTRUCTION


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In many countries, the regulation requires a suitable and sufficient fire risk assessment to be carried out by a accountable person.

 

The below basic principles are relevant to fire risk assessment in all circumstances. However, note that there will be different things to consider for new builds compared with the renovation of an existing building.

For a newly build, the assessment will include its location and proximity to other buildings, the type of construction materials and methods.

 

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When identifying potential fire hazards, as well as looking at hazards on site, try to identify hazards on adjacent properties; for example, whether a neighboring property has flammable materials stored adjacent to the shared boundary.

 

We all know, for a fire to start, the below three things are needed

ü  heat (a source of ignition);

ü  fuel; and

ü  oxygen.

 

If any one of these is missing a fire cannot start. Taking measures to prevent these three coming together will therefore reduce the chances of a fire occurring.

The below points will help & advise on how to identify potential oxygen sources, the materials that might fuel a fire, and the oxygen supplies which will help it burn.

 

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Identification of sources of oxygen

We all well aware that the main source of oxygen for a fire is in the air around us. On construction sites this will be natural airflow through doors, windows and other openings. Wind or the ‘chimney effect’ can also cause increased oxygen to feed the fire. Sources of air flow may be hidden if a building layout has been altered from its original design, resulting in concealed vacuums.

 

Supplementary sources of oxygen can sometimes be found in site processes or materials used or stored on site, such as oxidising agents. They can provide a fire with extra oxygen and so help it burn. These chemicals should have correct identification in a legible manner on their container (and on their safety data sheet(SDS)), together with advice on their safe use and storage. Examples include:

 

Ø  Oxygen used in welding processes; and

Ø  Oxidising agents


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