Fire Extinguishers & Classifications
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FIRE EXTINGUISHERS & FIRE EXTINGUISHERS & FIRE CLASSIFICATION FIRE CLASSIFICATION C4367 – FIRE PREVENTION SYSTEM C4367 – FIRE PREVENTION SYSTEM Mustazha Hakim Bin Abu Tahari Mustazha Hakim Bin Abu Tahari Politeknik Sultan Salahuddin Abdul Aziz Shah Politeknik Sultan Salahuddin Abdul Aziz Shah prepared by mustazhahakim on 23rd prepared by mustazhahakim on 23rd May 2011 May 2011
Transcript of Fire Extinguishers & Classifications
FIRE EXTINGUISHERS & FIRE EXTINGUISHERS & FIRE CLASSIFICATIONFIRE CLASSIFICATION
C4367 – FIRE PREVENTION SYSTEMC4367 – FIRE PREVENTION SYSTEM
Mustazha Hakim Bin Abu TahariMustazha Hakim Bin Abu TahariPoliteknik Sultan Salahuddin Abdul Aziz ShahPoliteknik Sultan Salahuddin Abdul Aziz Shah
prepared by mustazhahakim on 23rd May 2011prepared by mustazhahakim on 23rd May 2011
Understanding FireUnderstanding Fire
• Fire is a chemical reaction known as Fire is a chemical reaction known as combustioncombustion
• It can spread in minutes and kill in It can spread in minutes and kill in secondsseconds
• Knowing the characteristics of fire Knowing the characteristics of fire and understanding how it can spread and understanding how it can spread can help to formulate strategies on can help to formulate strategies on life safety and property protection in life safety and property protection in building designsbuilding designs
prepared by mustazhahakim on 23rd May 2011prepared by mustazhahakim on 23rd May 2011
Fire ExtinguishersFire Extinguishers• Dry Powder typeDry Powder type
– Contents:Contents:• 97% sodium bicarbonate97% sodium bicarbonate• 1.5% magnesium stearate1.5% magnesium stearate• 1% magnesium carbonate1% magnesium carbonate• 0.5% trikalsium fosfate0.5% trikalsium fosfate
– Specification:Specification:• Distance: 4 - 6 mDistance: 4 - 6 m• Operation time: 1 – 2 minOperation time: 1 – 2 min
– Advantages:Advantages:• More effective than other types of fire extinguisherMore effective than other types of fire extinguisher
– Disadvantages:Disadvantages:• Use only onceUse only once
prepared by mustazhahakim on 23rd May 2011prepared by mustazhahakim on 23rd May 2011
Fire ExtinguishersFire Extinguishers
• Foam typeFoam type– Contents:Contents:
• 8% soda8% soda• 3% stabilizer3% stabilizer• 13% aluminium sulfurik13% aluminium sulfurik
– Specification:Specification:• Distance: 4 - 5 mDistance: 4 - 5 m• Operation time: 30 – Operation time: 30 –
90 sec90 sec
Advantages Advantages DisadvantageDisadvantagess
Safe & easy Safe & easy to useto use
Cannot use to Cannot use to extinguish extinguish electricityelectricity
RefillableRefillable if placed in if placed in cold cold temperature temperature
Can cover Can cover burning burning surfaces surfaces fasterfaster
Cannot be Cannot be placed in hot placed in hot temperaturetemperature
Can Can extinguish extinguish small firesmall fire
prepared by mustazhahakim on 23rd May 2011prepared by mustazhahakim on 23rd May 2011
Fire ExtinguishersFire Extinguishers
• COCO22 type type– Contents:Contents:
• COCO22 at 744 psi at 744 psi– Specification:Specification:
• Distance: 2 - 3 mDistance: 2 - 3 m• Operation time: 8 – 30 Operation time: 8 – 30
secsec
Advantages Advantages DisadvantageDisadvantagess
Clean & safeClean & safe Cannot use to Cannot use to extinguish extinguish electricityelectricity
Can Can extinguish extinguish small firesmall fire
if placed in if placed in cold cold temperature temperature
No stainsNo stains Cannot be Cannot be placed in hot placed in hot temperaturetemperature
Can Can extinguish extinguish small firesmall fireprepared by mustazhahakim on 23rd May 2011prepared by mustazhahakim on 23rd May 2011
UnderstandiUnderstanding Fire:ng Fire:The FireThe FireTriangleTriangle
prepared by mustazhahakim on 23rd May 2011prepared by mustazhahakim on 23rd May 2011
Fire Classification and Fire Fire Classification and Fire ExtinguishersExtinguishers
prepared by mustazhahakim on 23rd May 2011prepared by mustazhahakim on 23rd May 2011
How Fire SpreadsHow Fire Spreads
– Radiation (radiasi):Radiation (radiasi):• Raciant heat is transmitted to buildings or materials not Raciant heat is transmitted to buildings or materials not
shielded from the fire – It is the transfer of heat energy shielded from the fire – It is the transfer of heat energy as electromagnetic waves.as electromagnetic waves.
• Radiation passes through normal glass windows easilyRadiation passes through normal glass windows easily– Building with many / large windows are more likely to Building with many / large windows are more likely to
spread fire to other buildings.spread fire to other buildings.
– Conduction (pengaliran):Conduction (pengaliran):• Movement of heat through materials.Movement of heat through materials.• Metals are better conductors of heat than stones.Metals are better conductors of heat than stones.• Conducted heat can travel through partitions, floors, Conducted heat can travel through partitions, floors,
ceiling, walls, to rooms, especially through metal piping ceiling, walls, to rooms, especially through metal piping and frames.and frames.
• Combustible materials in rooms can be heated to their Combustible materials in rooms can be heated to their ignition temperature by conducted heat.ignition temperature by conducted heat.
uploaded by mustazhahakim on 23rd May 2011uploaded by mustazhahakim on 23rd May 2011
