What is foam extinguisher?

What is foam extinguisher?

9 LITRES FOAM FIRE EXTINGUISHERS (Chemical Foam) Foam is an effective smothering agent, used for liquid fires mainly. It acts by flowing over the liquid fuel oil surface and isolating the fire from the air, also prevents re-ignition due to the foam stability. Usually the foams are of i. Protein Based ii.

How does foam extinguisher flammable liquid fires?

Foam fire extinguishers are suitable for class A and the flammable liquids of class B, though not effective for gaseous fires. They spray a type of foam that expands when it hits the air and blankets the fire. This blanket prevents the vapors from rising off the liquid to feed the fire, thus starving it of fuel.

What is the use of a foam fire extinguisher?

What is a foam fire extinguisher used for. AFFF (Aqueous Film Forming Foams) Foam Fire Extinguishers are suitable to fight burning solids such as wood as well as liquid fires such as burning petrol. The foam has the ability to creep over the burning liquid or to soak into burning materials such as settees.

What do foam extinguishers put?

Foam extinguishers Foam fire extinguishers can be used on Class A and B fires. They are most suited to extinguishing liquid fires such as petrol or diesel and are more versatile than water jet extinguishers because they can also be used on solids such as wood and paper.

What should you not use a foam extinguisher on?

Foam Extinguisher (AFFF) Do not use on chip or fat pan fires. For fires involving solids, point the jet at the base of the flames and keep it moving across the area of the fire. Ensure that all areas of the fire are out. For fires involving liquids, do not aim the jet straight into the liquid.

Where do you aim foam extinguishers?

Where to aim the fire extinguisher hose:

1. Flammable liquids: Aim the hose at a vertical surface near the fire, do not spray directly at the fire as this could cause the fire to be pushed and spread to surrounding areas.
2. Solid combustibles: Aim the hose at the base of the fire, moving across the area of the fire.

When using foam extinguisher where should you aim to be most effective?

Solid combustibles: Aim the nozzle at the base of the fire, moving across the area of the fire.

When would a foam type extinguisher be used?

It is recommended to use a foam fire extinguisher for class A and class B fires. Fires that are categorised as class A involve flammable solids such as rubber, wood, paper and textile materials, where as class B fires involve flammable liquids such as kerosene or petrol.

What Colour label is a foam extinguisher?

Cream

What type of extinguisher should be used on gas?

Dry Powder extinguishers (red with blue band; Class A; Class B; Class C; Electrical) – These can be used to put out solid, flammable liquid and flammable gas fires.

Why should you not use a foam or water fire extinguisher on an electrical fire?

Never use a water extinguisher on electrical fires or any fire involving a flammable liquid. As any science student will tell you, water conducts the current. If you spray water onto an electrical fire, inadvertently or intentionally, you risk electrocuting yourself.

When should you not use a foam fire extinguisher?

Foam extinguishers are also safe for use on flammable liquid fires. They CANNOT be used on electrical fires or flammable metal fires as this extinguisher could end up exacerbating the fire. Foam extinguishers are ideal for premises which have multiple fire risks including offices, factories, warehouses and hotels.

Which of these is the best to used on an electrical fire?

The best way to put out an electrical fire is with a fire extinguisher.

Which type of extinguisher is best for electrical fires?

CO2 extinguishers

Which type of fire extinguisher do you use to fight an electrical fire if carbon dioxide extinguisher is unavailable?

Both carbon dioxide and dry chemicals can be used for electrical fires. An advantage of carbon dioxide is that it leaves no residue after the fire is extinguished. When electrical equipment is not energized, extinguishers for Class A or B fires may be used.

Can CO2 extinguishers be used on electrical fires?

The CO2 extinguisher can be used to extinguish electrical fires and fires involving flammable liquids such as petrol.