File Name: types of fire extinguisher and their uses .zip
All fires can be very dangerous and life-threatening.
- Understanding the Different Types and Uses of Fire Extinguishers
- The Five Classes of Fires and the Fire Extinguishers that Stop Them
- Fire extinguishers
Everyone knows that their workplace is required to have fire extinguisher s , and everyone should know where the nearest one is.
Understanding the Different Types and Uses of Fire Extinguishers
Following the recent covid announcement regarding the closure of non-essential businesses, we would like to reassure our customers that as suppliers of essential emergency equipment to the healthcare sector, we are still open for business. While our aim is to continue to provide an uninterrupted service, we will continue to monitor the ever changing situation while taking all necessary steps to ensure the wellbeing of both our staff and customers.
Fire extinguishers are designed to tackle specific types of fire. There are six different classes of fire and several different types of fire extinguishers.
Water extinguishers are one of the most cost-effective ways to fight Class A fires, those fuelled by solid materials such as paper, wood and textiles. There are four different types of water extinguishers: water jet, water spray, water with additives and water mist or fog.
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.
The foam extinguishes liquid fires by sealing the surface of the liquid, preventing flammable vapour reaching the air and starving the fire of fuel.
They are not suitable for use on free flowing liquid fires. Powder extinguishers are a good multi-purpose fire extinguisher because they can be used on Class A, B and C fires. They can also be used on fires involving electrical equipment however, they do not cool the fire so it can re-ignite.
Powder extinguishers can also create a loss of visibility and may create breathing problems. They are not generally recommended for use inside buildings unless there is absolutely no alternative.
CO2 extinguishers are ideal for places with a lot of electrical equipment such as offices or server rooms because they are safe to use on fires involving electrical apparatus. Carbon dioxide extinguishers do not leave any residue, unlike a foam extinguisher. They can also be used on Class B fires, those involving flammable liquids such paraffin or petrol. CO2 extinguishers work by smothering the fire and cutting off the supply of air.
Wet chemical extinguishers are suitable for use on Class F fires involving cooking oils and fats, such as lard, olive oil, sunflower oil, maize oil and butter.
They are extremely effective, when used correctly. The wet chemical rapidly knocks the flames out, cools the burning oil and chemically reacts to form a soap-like solution, sealing the surface and preventing re-ignition. Although they are primarily designed for use on Class F fires, cooking oils and deep fat fryers.
They can also be used on Class A fires wood, paper and fabrics and Class B fires flammable liquids. Fire blankets are primarily for use on hot oil fires such as frying pans or small deep fat fryers. They can also be used on someone whose clothing has caught fire. They work by smothering the fire, stopping access to the oxygen fuelling it and extinguishing it.
Browse range. Coronavirus update Following the recent covid announcement regarding the closure of non-essential businesses, we would like to reassure our customers that as suppliers of essential emergency equipment to the healthcare sector, we are still open for business.
Classes of fire Class A - fires involving solid materials such as wood, paper or textiles. Class B - fires involving flammable liquids such as petrol, diesel or oils. Class C - fires involving gases. Class D - fires involving metals. Class E - fires involving live electrical apparatus. Types of extinguishers Water extinguishers Water extinguishers are one of the most cost-effective ways to fight Class A fires, those fuelled by solid materials such as paper, wood and textiles.
Water jet extinguishers work by spraying a jet of water at the burning materials, cooling them and preventing re-ignition. They should not be used on live electrical equipment. Water spray extinguishers use a very fine spray of water droplets, each droplet is surrounded by air which is non-conductive. Most water spray fire extinguishers carry a 35 kV dielectric test approval which means they have been tested on a 35, Volt electrical source at one meter. Water extinguishers with additives are water extinguishers with foaming chemicals added.
The water loses its natural surface tension meaning that it can soak into the burning materials more effectively. Adding the chemicals to the water means that a smaller extinguisher can produce the same fire rating as a larger, water only, extinguisher. Water mist, or fog, extinguishers apply water in the form of mist, or fog, the droplets are much smaller than those from the water spray extinguisher. The smaller the droplet, the larger its surface area in relation to its size, the quicker the droplet evaporates which absorbs the heat energy faster.
The downside is the smaller the droplet the less it weighs and therefore the less powerful the cloud of water. All water extinguishers have a red label. Foam extinguishers Foam fire extinguishers can be used on Class A and B fires.
Foam extinguishers have a cream label. Powder extinguishers Powder extinguishers are a good multi-purpose fire extinguisher because they can be used on Class A, B and C fires.
Powder extinguishers have a blue label. Carbon dioxide extinguishers CO2 CO2 extinguishers are ideal for places with a lot of electrical equipment such as offices or server rooms because they are safe to use on fires involving electrical apparatus.
Carbon Dioxide Extinguishers CO2 have a black label. Wet chemical extinguishers Wet chemical extinguishers are suitable for use on Class F fires involving cooking oils and fats, such as lard, olive oil, sunflower oil, maize oil and butter. Wet chemical extinguishers have a yellow label. Fire blankets Fire blankets are primarily for use on hot oil fires such as frying pans or small deep fat fryers.
The Five Classes of Fires and the Fire Extinguishers that Stop Them
It's important to make sure you have the right types of fire extinguishers on hand to put out common household fires. Read our fire extinguisher safety tips to learn how to stay safe and don't forget to make sure you have the right coverage if your home sustains fire damage. The first thing to do when choosing a fire extinguisher is to decide which rooms in your house need one. You should keep at least one on each level of your house. Make sure you keep fire extinguishers handy where fires are more likely to start, like in the kitchen and garage. There are four classes of fire extinguishers — A, B, C and D — and each class can put out a different type of fire. Multipurpose extinguishers can be used on different types of fires and will be labeled with more than one class, like A-B, B-C or A-B-C.
Share sensitive information only on official, secure websites. Many adults might not know how or when to use fire extinguishers. Encourage people to contact their fire department if they would like fire extinguisher training or have any questions. Help spread the word by sharing the following information and tips for using and maintaining fire extinguishers. There are five primary types of fire extinguishers, each designed to put out different kinds of fires. For use with combustible and flammable liquids like grease, gasoline, oil and oil-based paints.
A fire extinguisher is an active fire protection device used to extinguish or control small fires, often in emergency situations. It is not intended for use on an out-of-control fire, such as one which has reached the ceiling , endangers the user i. Typically, a fire extinguisher consists of a hand-held cylindrical pressure vessel containing an agent that can be discharged to extinguish a fire. Fire extinguishers manufactured with non-cylindrical pressure vessels also exist but are less common. There are two main types of fire extinguishers: stored-pressure and cartridge-operated.
When it comes to fire safety, making sure your home or workplace is prepared with the right type of fire extinguisher is a big deal. Of course, if the fire is significant, your priority should be to evacuate your home or office immediately and wait for firefighters outside. There are five different categories :. Many homes and offices will either use general-purpose or kitchen extinguishers, but other environments, like laboratories or warehouses, might need more specific extinguishers. The water component of this extinguisher removes the heat of the fire, while the foam component removes the oxygen.
When you run a business, you are responsible for the safety of your employees and guests. A large part of safety is being prepared for accidents and emergencies such as a fire. You may believe that you are prepared if you have a fire extinguisher on site, but you may not be as prepared as you think.
Classes of fire
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