No single extinguisher type is effective on any fire when picking the correct fire extinguisher. It is also important to carefully verify what kind of fire you might have to contend with before buying a fire extinguisher. It can be very risky to pick the wrong kind of fire extinguisher, make the fire worse and risk harming those who want to defend against the fire.
The method for classifying fires categorizes fires according to the kind of fuel in question. Each fire class is represented by an alphabet letter and a readily recognizable symbol (except for ‘electric fires’), encouraging people to use the right fire extinguisher for a given fire case. This helps.
Fire Styles :
Fire extinguishers are a vital component of robust fire protection and are also mandated by legislation on health and safety in commercial and industrial assets. However, fire extinguishers come in several forms. A specific fire extinguisher or fire extinguishing mixture would be needed in conjunction with the atmosphere you reside or function inside.
The Fire Tetrahedron sets out the four ingredients needed to start the fire – flame, gasoline, oxygen, and chemical reactions – and the fire extinguishers are designed to eliminate one or two of these elements from the fire.
Before we get to the various styles of fire extinguishers, it is necessary to understand the different forms of fire that these fire extinguishers are equipped to battle.
There are five categories:
- Class A – a fire started with normal fuels such as wood, paper and fabric.
- Class B – a fire ignited with explosive and flammable liquids and gasses such as fuel and paint.
- Class C – a fire initiated by energized electrical devices, such as a short circuit in power transmission cables
- Class D – a fire ignited with flammable ions such as sodium, potassium and lithium.
- Class K – Kitchen Burn
Water extinguishers are used mainly for fire danger Class A. Either foam, or water extinguishers need to be used in most premises. There is a luminous red mark.
This extinguisher is used for fires sparked by diverse organic materials such as textiles, coal, wood, carton and paper. It should not be used for cooking flames, flameproof gas and fuels fires and electrical fires.
- A water fire extinctor is ideal for fighting class A flames, such as wood, fibre, clothing, paper and plastics fires involving solid organic materials.
- Do not use for fat or oil burning and also seldom for electrical equipment burns.
How does it work?
- The fire extinguisher’s water soaks up the combustible items, refreshes them, and takes out the fire fully.
CO2 Fire Extinguisher:
CO2 extinguishers have to be located close to or near the fire risk source, e.g. offices, kitchens, server rooms and electronic equipment facilities.
They have also fired Class B. CO2 extinguishers smother fires by moving the oxygen that the fire has to burn. The label is black in this kind of extinguisher.
- Carbon fire extinguishers for electrical (Class E) at-risk conditions and fires containing inflammable fluids are suitable for extinguishing.
- CO2 extinguishers can not be used on fires in solid materials, such as paper, wood and cloth, and are therefore not acceptable for flammable gas applications.
How Does it work?
- The carbon dioxide works by reducing the supply of the fire. Then it is smothered, but the flames are extinguished.
Foam Fire Extinguisher:
These are the common fire extinguishers for fires of class B. However, these are water-based so that they can also be used for fires of class A. Crème is the etiquette colour.
These extinguishers may be used in the event of fires caused by different organic materials, such as wood, carbon, textiles, fabrics, paper and cardboard, and inflammable fluids, including oil and paint.
- Smoothing extinguisher can efficiently defend areas at risk against fires of products, including solids like paper and lumber, and even against fires containing flammable fluids, against Class A and Class B fires.
- Don’t use fat pan fires on the domestic chip.
How does it work?
- The foam is used to choke the fire and stitches the branded item’s skin or materials as it smothers it and refreshes it. It also eliminates streamlined products and the beginning of fires elsewhere.
Powder Fire Extinguisher:
These can therefore not be used in confined spaces since it is easy to inhale the dried powder in the extinguisher. Even cleaning the residue after the fire has finished is not easy. These may also be used for electric machinery explosions. Unique dry powder extinguishers are also used in fires caused by inflammable metals. This form of extinguisher has a blue mark colour.
This fire extinguisher can be used to fire organic materials, such as wood, charcoal, textiles, clothing, cardboard and paper. It can also be used for fires caused by flame retardants such as fuel and paint, flammable gases such as acetylene and petroleum liquid gas. Any fire involving up to 1000 V electrical equipment can also be solved with this fire extinctor.
- Powder extinguishers are suitable for multi-risk settings to fight A, B and C flames. This ensures that solid materials, flame retardant oils, gasses and electrical devices should be used.
- Do not use powder extinctors for cooking oils or fats on flames.
How does it work?
- The material emitted by a gas is a discharge agent that produces a powerful blanket over the fire. The powder smothers its source, cools it and thereby stops it from spreading.
Wet Chemical Fire Extinguisher:
Wet Chemical is a new fire-extinguishing agent that eliminates the heat of the burning triangle and prevents reignition by forming a barrier between the oxygen and the fuel.
For new, high-efficiency deep fat freezer applications in commercial cooking processes, Class K wet chemical extinguishers have been developed. Some can be used in industrial kitchens on Class A flames.
- Wet chemical extinguishers were expressly developed to make it suitable for industrial and domestic kitchens to cook oils and fats (Class F fires).
- They are not ideal for flammable fluids, chemicals, metals, and flames used with electrical devices, and can never be used to fight them.
How does it work?
- A fine spray damps the fire, emitted from the wet chemical current. Simultaneously, the chemical agent reacts to create a film by using oxygen, screening the surface and removing it entirely.
Automatic Fire Extinguisher:
A continuous defence, protection against fire, is provided by a fire extinguisher. It eliminates the need to be staffed or tracked, but they must be operated constantly, as manual extinguishers, secure and usable.
There are two main types of automatic devices with common features that separate them from standard extinguishers and fire sprinklers.
Modern fire prevention equipment will, particularly in situations where water loss can be expensive, be used as an alternative to fire sprinkler systems. Today’s equipment efficiently and sensitively allows computerized fire extinguishers.
- They are particularly designed for Class A, B and C fires to cope with fires containing solids, inflammable liquids and inflammable gasses. It may also be extended to electrical devices.
- Fire extinguishers automated for fires with cooking oil or fat are not appropriate.
How does it work?
- Automatically set off, usually by releasing a fading agent, they protect some square footage. It is suitable for conditions that cannot often be used manually. Rapid activation can be required such as machinery and equipment, boat motor bays and flammable chemical storage areas.
Which is the best Fire extinguisher type?
It may be hard to figure out which fire extinguisher to store it best. If the fire extinguisher is being sought, consider the purchase of an “ABC” all-purpose or multi-rating extinguisher. This means that the extinguisher can be used in Class A, B or C fires. Regarding the number of extinguishers that you should have, try to have at least one per floor so that it is available in an emergency. In the kitchen and garage, fire extinguishers must also be maintained. Whether the fire can’t contain, it is important that you also know it. Fire extinguishers are only one part of a fire response plan, but escaping safely is the primary thing.
Make sure that your company is protected:
Now that you are better educated, you should examine the extinguishers of your property and guarantee that you have the class of extinguishers that you will most certainly use in the event of a fire in your facility. Bear in mind that you can need to have various extinguishers in different parts of the plant.
However, it’s not just about getting the right tools. If it is not maintained or the workers are not properly qualified, the correct equipment can malfunction or be misused.
To ensure that you have the ideal fire extinguishers in your premises and undergo adequate instruction and ensure that your fire extinguishers are correctly tested for safety and reliability, call Fire & Protection.
With a team of trained technicians and engineers is ready to assess the plant for the right class of extinguishers, and to test, mount and operate it, as well as to provide the training you and your workers require.