What is a disadvantage of carbon dioxide fire extinguishers OSHA?
Because of this, CO2 has been and is being used for fire protection in a number of hazard situations. One drawback to using carbon dioxide, however, is that its mechanism of fire suppression is through oxygen dilution, and not, as is the case for halon, through chemical disruption of the catalytic combustion chain.
What are the advantages of carbon dioxide fire extinguisher?
carbon dioxide is a non-conductor, so can be used on live electrical equipment (so is often suitable for server rooms) leaves no residue and is not as damaging to electrical equipment as powder. suitable for class B fires – flammable liquids including petrol, diesel, spirits, and paint.
Can CO2 be used as a fire extinguisher?
Carbon dioxide extinguishes work by displacing oxygen, or taking away the oxygen element of the fire triangle. … CO2s may be ineffective at extinguishing Class A fires because they may not be able to displace enough oxygen to successfully put the fire out. Class A materials may also smolder and re-ignite.
Are CO2 fire extinguishers effective?
Carbon Dioxide (CO2) extinguishers are most effective on Class B and C (liquids and electrical) fires. Since the gas disperses quickly, these extinguishers are only effective from 3 to 8 feet. The carbon dioxide is stored as a compressed liquid in the extinguisher; as it expands, it cools the surrounding air.
How does a carbon dioxide fire extinguisher works?
A carbon dioxide (CO2) fire extinguisher is a portable, active fire protection device that works by expelling carbon dioxide onto a fire. It works by displacing the oxygen the fire relies upon to continue burning, and it is primarily used to extinguish fires in which the source of the fuel is a flammable liquid or gas.
What should you not touch on CO2 fire extinguisher?
The CO2, being chemically inert, starves the fire of oxygen and therefore stops the fire. The gas, as it goes from a highly compressed state to surrounding air pressure level, becomes extremely cold and care must be taken not to touch the pipe leading to the horn, as this can lead to freeze burns.
Which is not an advantage of CO2 extinguisher?
Co2 (Carbon Dioxide) fire extinguishers are ideal for fires involving delicate electrical equipment and Class B liquid fires. They do not work by cooling the fire and therefore not recommended for controlling Class A fires involving solids.