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Why carbondioxide fire extinguishers are more suitable for putting out oil electrical fires than water?

Carbon Dioxide is a non-flammable gas that extinguishes fire by displacing oxygen, or taking away the oxygen element of the fire triangle. The carbon dioxide is also very cold as it comes out of the extinguisher, so it cools the fuel as well.

Can carbon dioxide be used on liquid and electrical fires?

Carbon Dioxide is suitable for us on both Electrical and Flammable Liquid (Class B) Fire types. Being a gas it is completely harmless to electrical equipment.

Where should you not use carbon dioxide fire extinguisher?

CO2 fire extinguishers are mainly aimed at electrical fires but are also suitable for Class B liquid fires and are used in different ways depending on the type of fire they are being used on. Do not use CO2 extinguishers in small rooms as CO2 gas is poisonous at only 4% concentration and can kill at just 8%.

What is the disadvantage of carbon dioxide fire extinguisher?

Disadvantages Of Carbon Dioxide Extinguishers As CO2 works by displacing the oxygen around the fire, it is not suitable for outdoor use, or in environments exposed to windy conditions. CO2 is a high pressured extinguisher. Using it on class A fires or class F fires could cause the fire to spread.

What 2 fire extinguisher should not be used in confined spaces?

Carbon dioxide fire extinguishers

Why should you not touch the horn of a carbon dioxide 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.

What will happen if you hold the horn of a CO2 fire extinguisher?

This is because during operation, the CO2 extinguishing agent causes a standard CO2 horn to frost over. If the horn is held during this time, it can potentially injure the user through freeze burn. An even better solution to this problem is to buy CO2 extinguishers with frost-free horns.