Can foam extinguishers be used on metal fires?
This type of fire extinguisher should not be used for fires caused by flammable metals, kitchen fires and fires that involve electrical equipment. These extinguishers work by creating a cooling effect on the fuel that is responsible for causing the fire.
Can foam extinguishers be used on electrical fires?
Foam extinguishers build up of foam on the surface of the burning liquid, cutting off the oxygen supply to the fire and cooling the hot liquid. Electrical fires: If your foam extinguisher is tested to 35000 Volt (35kV) you can use the extinguishers on live electrical fires. However, keep a safety distance of 1m.
What type of fire should a foam extinguisher be used on?
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 a foam extinguisher not be used 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.
What is the difference between ABC and CO2 fire extinguisher?
CO2s are designed for Class B and C (flammable liquid and electrical) fires only. Carbon Dioxide is a non-flammable gas that extinguishes fire by displacing oxygen, or taking away the oxygen element of the fire triangle.
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.
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.
Can you use dry powder on electrical fires?
Dry Powder is a highly versatile medium for tackling most types of fire. It is extremely effective with electrical hazards, flammable liquids and gases, which making it ideal for vehicle fires. Carbon Dioxide fire extinguishers are ideal for electrical fires or flammable liquid fires.
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. If you don’t have one, remember these tips. 1. You should never throw water on an electrical fire because water conducts electricity and you could be electrocuted.
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.
Which type of fire extinguisher must not be used on electrical equipment?
Electrical fires need to be put out by a substance that is non-conductive unlike the water or foam found in class A fire extinguishers. If someone attempts to put out an electrical fire with something like water, there is a high risk of electrocution since water is conductive.