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Portable Fire ExtinguishersSelection and Placement University Safety CouncilApril 19, 2006 : 

Portable Fire ExtinguishersSelection and Placement University Safety CouncilApril 19, 2006 Steven G. Triebold Fire Prevention and Protection Program Manager Environmental Health and Safety Penn State University 865-6391 sgt4@psu.edu

Program Outline : 

Program Outline Purpose of Portable Fire Extinguishers Types of Portable Fire Extinguishers Selection Criteria for Extinguishers Distribution Criteria for Extinguishers

When a building is constructed or renovated the selection, placement and installation of fire extinguishers is part of the construction project based on the layout of the building. As the building is occupied and additional uses are added it may be necessary to add additional fire extinguishers to protect against fire. : 

When a building is constructed or renovated the selection, placement and installation of fire extinguishers is part of the construction project based on the layout of the building. As the building is occupied and additional uses are added it may be necessary to add additional fire extinguishers to protect against fire.

Purpose of Fire Extinguishers : 

Purpose of Fire Extinguishers Used properly, a portable fire extinguisher can save lives and property by extinguishing a small fire or containing it until the fire department arrives. Portable fire extinguishers are not designed to fight large or spreading fires.

Definitions : 

Definitions Class A – Fires involving ordinary combustibles (wood, paper, rubber, plastics) Class B – Fires involving flammable liquids, oils, greases, tars, oil based paints, flammable gases. Class C – Fires involving energized electrical equipment Class D – Fires involving combustible metals (magnesium, titanium, sodium etc.) Class K – Fires involving combustible cooking media (fats, oils)

Class A Fire Extinguisher : 

Class A Fire Extinguisher 75 foot maximum travel distance Pressurized water extinguisher (2 ½ gallons) Extinguishes by reducing temp of burning fuel. Easy cleanup

Class B Fire Extinguisher : 

Class B Fire Extinguisher 50 foot maximum travel distance Dry Chemical extinguishing agent (Common Type) Extinguishes by interfering with the chemical chain reaction of fire. Residue clean up

Class C Fire Extinguisher : 

Class C Fire Extinguisher Located in proximity to electrical equipment. Extinguishing agent non-conductive. De-energize electrical equipment. Removes Oxygen, interferes with chemical chain reaction of fire. Some agents leave no residue for cleanup.

Class D Extinguisher : 

Class D Extinguisher 75 foot maximum travel distance Installed in areas where combustible metal powders, flakes, shavings, chips are generated. Dry Powder extinguishing agent Encapsulates burning metal. Extinguishes by removing oxygen.

Class K Extinguisher : 

Class K Extinguisher 30 Foot maximum travel distance. Used in conjunction with Hood Suppression System Extinguishes by creating foam blanket on burning material and excluding oxygen.

Light (Low) Hazard : 

Light (Low) Hazard Locations where the total amount of Class A combustible materials including finishes, decorations and contents is of minor quantity. (ex. office, classrooms, churches, guestrooms in hotels) Class A Extinguisher

Ordinary (Light) Hazard : 

Ordinary (Light) Hazard Locations where the total amount of Class A combustibles and Class B flammables are present in greater amounts than expected under light (low) hazards. (ex. Dining areas, mercantile shops, research operations) Multi Class Extinguisher ABC.

Extra Hazard : 

Extra Hazard Locations where total amounts of Class A Combustibles and Class B Flammables is over and above those expected in Ordinary Light hazard occupancies. (ex. Commercial kitchen fryers, wood shops)

Extra Hazard Extinguishers : 

Extra Hazard Extinguishers Kitchen Type “K” extinguisher Maximum 30 feet travel distance. Other Areas Type ABC Maximum 50 feet travel distance.

Selection Principles : 

Selection Principles Nature of the combustibles or flammables that might be ignited. Potential severity (size, intensity, speed of travel) of any resulting fire. Effectiveness of the fire extinguisher on the hazard. Ease of use of the extinguisher

A fire creates conditions of stress and intense excitement. Under these conditions, the choice of a correct fire extinguisher needs to be made quickly. The following procedures can be used to ensure selection of the correct fire extinguisher. : 

A fire creates conditions of stress and intense excitement. Under these conditions, the choice of a correct fire extinguisher needs to be made quickly. The following procedures can be used to ensure selection of the correct fire extinguisher. Locating the fire extinguisher near fire hazards for which they are suitable. Using fire extinguishers suitable for more than one class of fire. Marking clearly the intended use of the fire extinguisher. Training employees in the proper use of provided fire extinguishers.

Placement of ExtinguishersSelected locations should…. : 

Placement of ExtinguishersSelected locations should…. Provide uniform distribution. Provide easy accessibility. Free from blocking by equipment and storage. Be near normal paths of travel. Be near entrance and exit doors. Be free from the potential of physical damage. Be readily visible. Mounted on wall or in cabinet 4’’ to 48” off floor. Be installed on a floor by floor basis.

Non-Accessible Locations : 

Non-Accessible Locations

Accessible Locations : 

Accessible Locations

Slide 21: 

Max 150ft Max 30 ft Exit Exit Exit FFE FE

Slide 22: 

FE FE FE FE FE

Successful use of a Fire Extinguisher : 

Successful use of a Fire Extinguisher

Successful use of a Fire Extinguisher : 

Successful use of a Fire Extinguisher

Questions?? : 

Questions??

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