For small household electrical fires, baking soda is the best way to quickly and easily smother the flames. Baking soda works to block oxygen, which means the fire is not being fed.
What is the most effective method of extinguishing an electrical fire quizlet?
Class C fire extinguishers are used on fires involving energized electrical equipment. Such fires must be extinguished using a non-conductive extinguishing agent such as carbon dioxide or a dry chemical.
How can we extinguish electric fire?
What to do in case of electrical fire?
- Call the fire department. …
- Turn off the fuses. …
- When the fire is small: some sodium bicarbonate, a blanket. …
- When the fire is large: CO2 fire extinguisher (carbon dioxide) or Dry powder fire extinguisher (ABC). …
- What NOT to do before an electric fire?
- –DO NOT extinguish with water.
Which is a commonly used method of extinguishing Class B fires quizlet?
Halon 1301 and Halon 1211 are most commonly used as extinguishing agents for Class B and Class C fires.
Which is commonly used method of extinguishing Class B fires?
CO2: A carbon dioxide fire extinguisher works on a Class B fire by expelling CO2 to suffocate the fire, removing the oxygen necessary to keep it burning. It also helps with removing the heat, as the discharge is very cold.
Which fire extinguishers are used for which fires?
It is important that you purchase the right fire extinguisher for your needs:
- Water: Class A fires (solid combustibles such as wood, paper and textiles). …
- AFFF foam: Class A and B (flammable liquids). …
- Carbon dioxide (CO2): Class B and electrical equipment.
- ABC powder: …
- De-Ionised water mist: …
- Wet chemical:
What is the most common extinguishing agent for Class A fires?
Water mist extinguishers are primarily for Class A fires, although they are safe for use on Class C fires as well. Cartridge Operated Dry Chemical – Cartridge Operated fire extinguishers extinguish the fire primarily by interrupting the chemical reaction of the fire triangle.
Which extinguishing agent is effective on Class B and C fires but has limited use on Class A fires?
Water These extinguishers contain water and compressed gas and should only be used on Class A (ordinary combustibles) fires. 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.
Which extinguishing agent is effective on Class B and C fires but has limited use on Class A fires quizlet?
In addition to similar effectiveness on Class B and C fires compared to Sodium bicarbonate, monoammonium phosphate has unique effectiveness on Class A fires. When it contacts a burning surface of an ordinary combustible, a molten residue is formed.
What are Class C extinguishers used for?
Class C: Electrical equipment, appliances and wiring in which the use or a nonconductive extinguishing agent prevents injury from electrical shock.
Which type of fire extinguisher is used for fire on electrical equipment?
In the case of electrical fires, also known as energized electrical fires, a class C fire extinguisher is needed to put it out. If this kind of fire occurs the source of electricity must be identified and shut off because the electricity itself will provide the fire with a constant source of ignition.
Which of the following is true when extinguishing a Class C fire?
If an extinguisher has a Class C rating, it means that the agent will not conduct electricity. But it is always best to disconnect the power source prior to fighting the fire. A Class C fire extinguisher is used to extinguish a fire that is caused by an energized electrical element.