Foam Extinguisher (AFFF) Fires involving solids and burning liquids, such as paint and petrol but not suitable for chip or fat pan fires. Safe on fires caused by electricity if tested to 35kV (dielectric test) and a 1m safety distance is …
Foam agents also separate the oxygen element from the other elements. Water extinguishers are for Class A fires only; they should not be used on Class B or C fires. The discharge stream could spread the flammable liquid in a Class B fire or …
Foam fire extinguishers – colours and uses explained
Also known as: • AFFF foam fire extinguishers. • AFFF fire extinguishers. • Spray foam fire extinguishers. • CREAM coloured label printed on the body stating ‘Foam’. • Should be identified by an extinguisher ID sign fixed nearby – ‘Foam Extinguisher’.
Some of the disadvantages of foam fire extinguisher are as follows: 1. Not Effective Against Electrical Fires. It is not effective against electrical fires because air can feed the fire. The foam that is used in the extinguisher is not effective against Class C, D, E and F fires. Must not be used on class C,D,E,F fires. 2. Not Effective Against Frost Fire
People Also Ask what not to use a foam fire extinguisher on
When should I not use a foam fire extinguisher?
Do not use foam fire extinguishers for: • Cooking fires involving oil and grease, such as chip pan fires (‘class F’ fires) • Fires involving flammable gases, like methane and butane (‘class C’ fires)
What type of foam is used in a fire extinguisher?
The foam used in a fire extinguisher can be either compressed air or water based. This type of fire extinguisher is sometimes referred to as the “air foam” type because it is filled with compressed air and the foam is formed when the air is expelled from the extinguisher under pressure.
What type of fire should a fire extinguisher not be used on?
Safe on fires caused by electricity if tested to 35kV (dielectric test) and a 1m safety distance is adhered to. Do not use on chip or fat pan fires. Click to see full answer. Also know, what type of fire should you not use a foam extinguisher on?
Can AFFF fire extinguishers be used on electrical appliances?
AFFF foam fire extinguishers are highly effective on class A and class B fires (the foam agent helps to prevent re-ignition). Some foam extinguishers have been dielectrically tested to 35000 Volt (35kV) and can be used on or near electrical appliances.
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Fire Safety Training – How to Use a FOAM Fire Extinguisher Video Answer
Reference:
https://www.usfa.fema.gov/
https://en.wikipedia.org/wiki/Fire_extinguisher