This type of extinguisher is used for fires caused by various organic materials including fabrics, textiles, coal, wood, cardboard and paper among others. It should not be used for kitchen fires, fires caused by flammable gas and liquids as well as fires that involve electrical equipment.
What can a water extinguisher not be used on?
Water fire extinguishers are NOT suitable for electrical fires as water is a conductor and you are at risk of electrocution if used on this type of fire. They are also NOT suitable for flammable liquids or flammable metal fires as it will not extinguish the fire.
When should you not use water on a fire?
APWs are designed for Class A (wood, paper, cloth) fires only. Never use water to extinguish flammable liquid fires. Water is extremely ineffective at extinguishing this type of fire, and you may, in fact, spread the fire if you try to use water on it. Never use water to extinguish an electrical fire.
Which extinguisher is most suitable for oil fires?
Wet Chemical fire extinguishers are the most effective against Class F fires (cooking oils and fats) e.g fats, grease and oil. Therefore they are practical in a kitchen environment.
Can you use a water fire extinguisher on an electrical fire?
Traditional water fire extinguishers are suitable for use on class A fires involving solid combustible materials such as wood, paper and textiles. Please note that modern water mist extinguishers with de-ionised water can also be used on B, C and electric fires.
What are the 3 methods of extinguishing a fire?
All fires can be extinguished by cooling, smothering, starving or by interrupting the combustion process to extinguish the fire. One of the most common methods of extinguishing a fire is by cooling with water.
Can water put out fire?
Water cools and smothers the fire at the same time. It cools it so much that it can’t burn anymore, and it smothers it so that it can’t make any more of the oxygen in the air explode. You can also put out a fire by smothering it with dirt, sand, or any other covering that cuts the fire off from its oxygen source.