Quick Answer: Why is carbon dioxide CO2 the best extinguisher for fires involving electrical equipment and inflammable materials like petrol ?

(flammable liquid and electrical) fires only. Carbon dioxide extinguishes work 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.

Why carbon dioxide CO2 is the best extinguisher for fires involving electrical equipment and inflammable materials like petrol?

For fires involving electrical equipment and inflammable materials like petrol, carbon dioxide (CO2) is the best extinguisher. CO2, being heavier than oxygen, covers the fire like a blanket. Since the contact between the fuel and oxygen is cut off, the fire is controlled. … Near the fire, these chemicals give off CO2.

Why CO2 is the best fire extinguisher explain?

It’s a non-combustible gas. It’s heavier than air, … As Fire needs oxygen to burn, Carbon Dioxide Covers the fire like an blanket and cuts the contact of fire to the oxygen present in the air, So Fire stops burning. That is why Carbon Dioxide is Considere as the best Fire Extinguisher.

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Why is CO2 best for electrical fires?

CO2 fire extinguishers contain only CO2 gas (carbon dioxide) in a highly compressed format (55 bar pressure). CO2 is inert, will evaporate without trace and suffocates fire by starving the fire of oxygen.

Which is the best extinguisher for fires involving electrical equipment?

Water is the best extinguisher for fire involving electrical equipments.

Why carbon dioxide is the best fire extinguisher and not water?

Carbon dioxide works for two reasons. One, it is at a much cooler temperature, as being a gas, it forms a liquid at very low temperatures. Secondly, carbon dioxide will lower the amount of oxygen reaching the flames, and suffocate the fire. Using water can prove very dangerous when dealing with oil fires.

Are CO2 fire extinguisher good for electrical fires?

CO2 fire extinguishers are designed for Class B liquid fires & safe to use on live electrical. … Class C fires, which involve energized electrical equipment, can also be extinguished with CO2. CO2 displaces the oxygen to extinguish the fire. When the CO2 gas is released from the extinguisher it looks like dry ice.

Can you use CO2 on electrical fires?

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.

What is carbon dioxide fire extinguisher?

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.

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How can we extinguish fire involving electrical equipments?

CORRECT WAYS TO PUT OUT AN ELECTRICAL FIRE

  1. Use a fire extinguisher. You should use a multipurpose fire extinguisher with C in its label. …
  2. Use baking soda. Is there anything baking soda can’t fix? …
  3. Use a heavy blanket. Without oxygen, the fire can’t burn.

What is the best extinguisher for fires involving electrical equipment True or false?

False – Carbon dioxide is the best extinguisher for fires involving electrical equipment. If electrical equipment is on fire, water may conduct electricity and harm those trying to douse the fire . Water is also not suitable for fires involving oil and petrol.

Is water suitable for fires involving electrical equipment?

Water is not suitable to extinguish fires involving electrical equipment as water is a good conductor of electricity and can harm those trying to douse the fire.