#FFFFFF#FFFFFF#777777#575757#FFFFFF#097CE7#E8E8E8#6E6E6E#000000#FFFFFF#A1A1A1#8A8A8A#F7F7F7#323232#D4D4D4#FFFFFF#6E6E6E#D0D0D0#A1A1A1#4D4D4DtruefalsetruefalsetruefalsetruetruetruetruetruetrueslideTimelinebySlidesfalsetruetruefalsefalsetruetruefalsetruefalsefalsetruetruetrueWelcome to Basic Fire Fighting course Module 5: Portable Fire Extinguishing Equipment , Unit 2: CO2 Fire Extinguisherwelcome to basic fire fighting course module 5: portable fire extinguishing equipment , unit 2: co2 fire extinguisher<p><font size="12">Welcome to Basic Fire Fighting course <b>Module 5: Portable Fire Extinguishing Equipment , Unit 2: CO2 Fire Extinguisher</b></font></p>Course: Basic Firefighting Module: B-5 – Portable Fire Extinguishing Equipment Unit: B-5-2 – CO2Unit outline
In this unit the specifics of CO2 Fire Extinguisher will be discussedunit outline
in this unit the specifics of co2 fire extinguisher will be discussed<p><font size="12"><b>Unit outline</b></font></p><p></p><p><font size="12">In this unit the specifics of CO2 Fire Extinguisher will be discussed</font></p>Unit outline
In this unit the specifics of CO2 Fire Extinguisher will be discussedLearning objectives
Upon completing this unit the trainees should be able to …
• Describe the basic properties of a CO2 Fire Extinguisher
• Acknowledge the best uses for it
• Identify dangers associated with using itlearning objectives
upon completing this unit the trainees should be able to …
• describe the basic properties of a co2 fire extinguisher
• acknowledge the best uses for it
• identify dangers associated with using it<p><font size="12"><b>Learning objectives</b></font></p><p></p><p><font size="12">Upon completing this unit the trainees should be able to …</font></p><p><font size="12">• <b>Describe the basic properties of a CO2 Fire Extinguisher</b></font></p><p><font size="12">• <b>Acknowledge the best uses for it </b></font></p><p><font size="12">• <b>Identify dangers associated with using it</b></font></p>Learning objectives
Upon completing this unit the trainees should be able to …
Describe the basic properties of a CO2 Fire Extinguisher
Acknowledge the best uses for it
Identify dangers associated with using it
Activate and use a CO2 Fire ExtinguisherIntroduction
Carbon dioxide (CO2) is an effective agent for extinguishing fires by smothering them
• It reduces the amount of oxygen available for combustion.
• Smothering action can be is temporary and the fire can quickly reignite if oxygen is again admitted to the burning compartment.
CO2 is a dry, noncorrosive gas that is inert when in contact with most substances. It is heavier than air and remains close to the surface. It does not damage
machinery or other equipment.
introduction
carbon dioxide (co2) is an effective agent for extinguishing fires by smothering them
• it reduces the amount of oxygen available for combustion.
• smothering action can be is temporary and the fire can quickly reignite if oxygen is again admitted to the burning compartment.
co2 is a dry, noncorrosive gas that is inert when in contact with most substances. it is heavier than air and remains close to the surface. it does not damage
machinery or other equipment.
<p><font size="12"><b>Introduction</b></font></p><p></p><p><font size="12"><b>Carbon dioxide (CO2) </b>is an effective agent for extinguishing fires by smothering them</font></p><p><font size="12">• <b>It reduces the amount of oxygen </b>available for combustion.</font></p><p><font size="12">• <b>Smothering action can be is temporary </b>and the fire can quickly reignite if oxygen is again admitted to the burning compartment.</font></p><p></p><p><font size="12">CO2 is a dry, noncorrosive gas that is inert when in contact with most substances. It is heavier than air and remains close to the surface. It does not damage</font></p><p><font size="12">machinery or other equipment.</font></p><p></p>Introduction
CO2 Fire extinguished through smothering
CO2 reduces the amount of oxygen available for combustion
Smothering action can be temporary
CO2 properties
Dry
Non corrosive gas
Inert
Heavier than air
Remains close to the surface
Does not damage machinery or equipmentCO2 and types of fire
Since CO2 does not conduct electricity it can be safely used to fight fires that might present electric shock hazards, like Electrical Fires
active circuits, and not isolated devices
CO2 does not conduct electricity
• But the frost accumulating in the horn does
• Do not allow the horn to touch electrically active surfaces
co2 and types of fire
since co2 does not conduct electricity it can be safely used to fight fires that might present electric shock hazards, like electrical fires
active circuits, and not isolated devices
co2 does not conduct electricity
• but the frost accumulating in the horn does
• do not allow the horn to touch electrically active surfaces
<p><font size="12"><b>CO2 and types of fire </b></font></p><p></p><p><font size="12">Since <b>CO2 does not conduct electricity </b>it can be safely used to fight fires that might present electric shock hazards, like <b>Electrical Fires</b></font></p><p><font size="12"><b>active circuits, and not isolated devices</b></font></p><p></p><p><font size="12"><b>CO2 does not conduct electricity </b></font></p><p><font size="12">• But the frost accumulating in the horn does</font></p><p><font size="12">• Do not allow the horn to touch electrically active surfaces</font></p>CO2 and types of fire
CO2 is used for
Electrical Fires
Circuits, not electrically isolated devices
Liquid fuel fires (Type Β)
Alternatively
CO2 does not conduct electricity
But the frost accumulating in the horn does
Do not allow the horn to touch electrically active surfaces
Source: Public domainCO2 and associated dangers
• Suffocation – Asphyxiation
Although CO2 is nonpoisonous, or corrosive, it does not provide a suitable atmosphere for breathing. Therefore, asphyxiation can result from breathing CO2
• Freezing
During CO2 release, temperature is dropping and frost may accumulate in the horn. Therefore, any contact of unprotected skin with the gas itself or non isolated part of the extinguisher, may result in burns
• Static Electricity
During CO2 release static electricity may develop. A good practice to avoid issues would be to ground the extinguisher before activation
• Negligible Fuel Cooling
As we discussed CO2 extinguishers work through smothering, thus leaving fuel temperature largely unaffectedco2 and associated dangers
• suffocation – asphyxiation
although co2 is nonpoisonous, or corrosive, it does not provide a suitable atmosphere for breathing. therefore, asphyxiation can result from breathing co2
• freezing
during co2 release, temperature is dropping and frost may accumulate in the horn. therefore, any contact of unprotected skin with the gas itself or non isolated part of the extinguisher, may result in burns
• static electricity
during co2 release static electricity may develop. a good practice to avoid issues would be to ground the extinguisher before activation
• negligible fuel cooling
as we discussed co2 extinguishers work through smothering, thus leaving fuel temperature largely unaffected<p><font size="12"><b>CO2 and associated dangers</b></font></p><p></p><p><font size="12">• <b>Suffocation – Asphyxiation</b></font></p><p><font size="12">Although CO2 is nonpoisonous, or corrosive, it does not provide a suitable atmosphere for breathing. Therefore, asphyxiation can result from breathing CO2</font></p><p></p><p><font size="12">• <b>Freezing</b></font></p><p><font size="12">During CO2 release, temperature is dropping and frost may accumulate in the horn. Therefore, any contact of unprotected skin with the gas itself or non isolated part of the extinguisher, may result in burns</font></p><p></p><p><font size="12">• <b>Static Electricity</b></font></p><p><font size="12">During CO2 release static electricity may develop. A good practice to avoid issues would be to ground the extinguisher before activation </font></p><p></p><p><font size="12">• <b>Negligible Fuel Cooling</b></font></p><p><font size="12">As we discussed CO2 extinguishers work through smothering, thus leaving fuel temperature largely unaffected</font></p>CO2 and associated dangers
Suffocation – Asphyxiation
1
Freezing
2
Static Electricity
3
Negligible Fuel Cooling
4CO2 demonstration in action
Step 1: Check pressure gauge (if any)
Step 2: Check to see it extinguisher is full
Step 3: Remove the safety pin
Step 4: To avoid electric shock ground the extinguisher with metal
Step 5: Hold the horn from the insulated handle only
Step 6: Check operation by pressing the activation lever
Step 7: Aim at the base of the fire
Step 8: Keep approx. 1.5 m away from the fire
Step 9: Once the fire is extinguished, check the area and retreat
Step 10: Leave the extinguisher down and away from the incident area
Music track: Vibe Ace
Artist: Kevin Mc Leod
Used under a CC license
co2 demonstration in action
step 1: check pressure gauge (if any)
step 2: check to see it extinguisher is full
step 3: remove the safety pin
step 4: to avoid electric shock ground the extinguisher with metal
step 5: hold the horn from the insulated handle only
step 6: check operation by pressing the activation lever
step 7: aim at the base of the fire
step 8: keep approx. 1.5 m away from the fire
step 9: once the fire is extinguished, check the area and retreat
step 10: leave the extinguisher down and away from the incident area
music track: vibe ace
artist: kevin mc leod
used under a cc license
<p><font size="12"><b>CO2 demonstration in action</b></font></p><p></p><p><font size="12"><b>Step 1: Check pressure gauge (if any)</b></font></p><p></p><p><font size="12"><b>Step 2: Check to see it extinguisher is full</b></font></p><p></p><p><font size="12"><b>Step 3: Remove the safety pin</b></font></p><p></p><p><font size="12"><b>Step 4: To avoid electric shock ground the extinguisher with metal</b></font></p><p></p><p><font size="12"><b>Step 5: Hold the horn from the insulated handle only</b></font></p><p></p><p><font size="12"><b>Step 6: Check operation by pressing the activation lever</b></font></p><p></p><p><font size="12"><b>Step 7: Aim at the base of the fire</b></font></p><p></p><p><font size="12"><b>Step 8: Keep approx. 1.5 m away from the fire</b></font></p><p></p><p><font size="12"><b>Step 9: Once the fire is extinguished, check the area and retreat</b></font></p><p></p><p><font size="12"><b>Step 10: Leave the extinguisher down and away from the incident area </b></font></p><p></p><p><font size="12"><b>Music track: </b>Vibe Ace</font></p><p><font size="12"><b>Artist: </b>Kevin Mc Leod</font></p><p><font size="12">Used under a CC license</font></p><p></p>CO2 demonstration in action
Step 1: Check pressure gauge (if any)
Step 2: Check to see if extinguisher is full
Step 3: Remove the safety pin
Step 4: To avoid electric shock ground the extinguisher with metal
Step 5: Hold the horn from the insulated handle only
Step 6: Check operation by pressing the activation lever
Step 7: Aim at the base of the fire
Step 8: Keep approx. 1.5 m away from the fire
Step 9: Once the fire is extinguished, check the area and retreat
Step 10: Leave the extinguisher down and away from the incident areaUnit Summary
In this unit we have discussed about …
• Characteristics and usage of CO2 Fire Extinguishers
Please note that this material will be further analyzed during the HOT training in the fire fighting simulator.unit summary
in this unit we have discussed about …
• characteristics and usage of co2 fire extinguishers
please note that this material will be further analyzed during the hot training in the fire fighting simulator.<p><font size="12"><b>Unit Summary</b></font></p><p></p><p><font size="12">In this unit we have discussed about …</font></p><p><font size="12">• <b>Characteristics and usage of CO2 Fire Extinguishers</b></font></p><p></p><p><font size="12">Please note that this material will be further analyzed during the HOT training in the fire fighting simulator.</font></p>Unit summary
In this unit we have discussed about …
Characteristics and usage of CO2 Fire ExtinguishersEnd of unit
Thank you for completing Unit B-5-2: CO2 Fire Extinguishers!
You may now proceed to the next unit.end of unit
thank you for completing unit b-5-2: co2 fire extinguishers!
you may now proceed to the next unit.<p><font size="12" color="#000000"><b>End of unit</b></font></p><p></p><p><font size="12" color="#000000">Thank you for completing <b>Unit B-5-2: </font><font size="12" color="#ffffff">CO2 Fire Extinguishers!</font><font size="12" color="#000000"></b></font></p><p></p><p><font size="12" color="#000000">You may now proceed to the next unit.</font></p>End of unit!
Congratulations! You have completed Unit B-5-2:
CO2 Fire Extinguishers!