There are 3 common types of fire extinguishers: dry powder, foam and carbon dioxide. They are suitable to extinguish different types of fire. The using methods are not the same as well for these three types fire extinguishers.
Dry powder fire extinguisher is suitable for home fire extinguishing. It has features of long time duration and easy operation.
Usage: Firstly, reverse the fire extinguisher several times to loose the dry powder in the cartridge. Then remove the seal, unplug the insurance pin. Holding the nozzle with left hand and carrying the pressure handle with right hand. At a distance of 2 meters from the flame, press the pressure handle hard and swing the nozzle around to spray dry powder to cover the combustion district until the fire is extinguished. The cooling effect is little of the dry powder and it has possibility of resurgence. So, pay attention of resurgence after extinguishing and repeat above action to thoroughly extinguish the fire.
Foam type fire extinguisher is suitable for fighting all kinds of oil fires and solid combustible fires such as wood, fiber, rubber fires.
Usage: People should stand in the windward and close to the source of fire as possible cause the foam type fire extinguisher’s spraying distance is 2 to 3 meters only. Spraying the most dangerous side of the fire firstly. Then gradually move to other sides to spray. Do not leave any sparks. Hold the nozzle wooden handle to avoid frostbite. After spraying, there is too much carbon dioxide in the air and it is harmful for human body. So, please keep ventilation immediately after using foam type fire extinguisher spraying.
Carbon dioxide type fire extinguisher. This is a new type of pressure gas fire extinguisher. It has high fire extinguishing performance, low toxicity, low causticity, convenient to use and no vestige leaving after fire extinguishing. It is suitable for a variety of flammable liquid and combustible gas fire. The carbon dioxide fire extinguisher can be used for fire fighting of initial electric fires under 600 volts and save instrumentation, books.
Usage: There are two types of carbon dioxide fire extinguishers. They are switch type and knife type. Please make good preparation before using. Once the knife-type fire extinguisher is opened, it can not be closed again. Firstly, unplug the insurance pin, then holding the jet horn on the wooden handle with one hand and press the duck tongue switch or rotary switch with another hand. Finally hold the whole body of the fire extinguisher to spray the fire for extinguishing.
How to use fire extinguishers
How to use fire extinguishers
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Classification of fires
It is necessary to classify the fire according to the type and combustion characteristics in order to use the fire extinguishing method and select the fire extinguishing equipment accurately.
Class A fire, fire of solid matter, usually organic in nature, which produces searing embers when burned.
Class B fire, liquid or fusible solid material fire.
Class C fire, gas fire.
Class D fire, metal fire
Class E fire, electric fire. A fire in which a substance is electrically ignited.
Class F fire, cooking fire. A fire of cooking material (e.g. animal or vegetable oil) in a cooking utensil.
For other purposes, such as hazard rating, fires are classified differently
Class A fire, fire of solid matter, usually organic in nature, which produces searing embers when burned.
Class B fire, liquid or fusible solid material fire.
Class C fire, gas fire.
Class D fire, metal fire
Class E fire, electric fire. A fire in which a substance is electrically ignited.
Class F fire, cooking fire. A fire of cooking material (e.g. animal or vegetable oil) in a cooking utensil.
For other purposes, such as hazard rating, fires are classified differently
Guide and supplier for fire alarm systems.
Can sprinkler head be installed over distribution cabinet?
Sprinkler heads can be installed over distribution cabinets with protection grade Ip55 or above. For Ip30 distribution cabinet, not allowed to install sprinkler heards over it.
When the fire pump control cabinet is set in the special fire pump control room, its protection level should not be lower than IP30. When it is set in the same room with the fire pump, its protection level should not be lower than IP55.
When the fire pump control cabinet is set in the special fire pump control room, its protection level should not be lower than IP30. When it is set in the same room with the fire pump, its protection level should not be lower than IP55.
Shop Focus brand wireless alarm, HB solar power alarm, HST fire alarm at https://www.vedardalarm.com
What are the different types of fire extinguishers and their specific uses?
From https://houses-apartments.com/en/safety ... cific-uses
In the context of fire safety and ensuring safety and security, it is crucial to understand the different types of fire extinguishers available and their specific uses. Fire extinguishers are vital tools in managing small fires and preventing them from spreading or causing further damage.
1. Water fire extinguishers:
Water fire extinguishers are commonly used for extinguishing fires fueled by organic materials such as wood, paper, or fabric. However, they should not be used for fires involving flammable liquids or electrical equipment, as water can spread the fire or cause electrical shock.
2. Foam fire extinguishers:
Foam fire extinguishers are effective in handling flammable liquid fires, including petrol or oil. The foam helps to smother the flames and prevent re-ignition. These extinguishers are also safe for use on materials like wood and paper.
3. Carbon dioxide (CO2) fire extinguishers:
CO2 fire extinguishers are suitable for dealing with fires involving electrical equipment or flammable liquids. The carbon dioxide gas displaces oxygen around the fire, suffocating it and suppressing the flames. However, it is important to note that CO2 extinguishers are not suitable for use in confined spaces, as they can displace breathable air.
4. Dry powder fire extinguishers:
Dry powder fire extinguishers are versatile as they can be used on a wide range of fire types, including Class A, B, C, and electrical fires. They work by interrupting the chemical reactions causing the fire. However, while effective, the discharge of dry powder can create a cloud that may obstruct vision or breathing.
5. Wet chemical fire extinguishers:
Wet chemical fire extinguishers are specifically designed for use on cooking oil and fat fires, commonly found in commercial kitchens. The extinguishing agent creates a soap-like layer on the burning fuel, preventing re-ignition. It is important to avoid using wet chemical extinguishers on electrical fires.
6. Specialized fire extinguishers:
There are also specialized fire extinguishers for specific applications, such as Class D extinguishers used for fires involving flammable metals like magnesium or titanium. These extinguishers contain powders specifically designed to react with the burning metal and extinguish the fire.
7. Fire extinguisher placement:
It is crucial to have the right type of fire extinguisher readily available in the appropriate locations. Fire extinguishers should be placed near potential fire hazards, easily accessible, and visible. Regular maintenance and inspection of extinguishers are essential to ensure their proper function.
Conclusion:
Understanding the different types of fire extinguishers and their specific uses is vital for fire safety and overall safety and security. Selecting the appropriate extinguisher for the potential fire risks and ensuring they are properly placed and maintained can significantly mitigate the impact of fires, preventing injuries, property damage, and potential loss of life.
In the context of fire safety and ensuring safety and security, it is crucial to understand the different types of fire extinguishers available and their specific uses. Fire extinguishers are vital tools in managing small fires and preventing them from spreading or causing further damage.
1. Water fire extinguishers:
Water fire extinguishers are commonly used for extinguishing fires fueled by organic materials such as wood, paper, or fabric. However, they should not be used for fires involving flammable liquids or electrical equipment, as water can spread the fire or cause electrical shock.
2. Foam fire extinguishers:
Foam fire extinguishers are effective in handling flammable liquid fires, including petrol or oil. The foam helps to smother the flames and prevent re-ignition. These extinguishers are also safe for use on materials like wood and paper.
3. Carbon dioxide (CO2) fire extinguishers:
CO2 fire extinguishers are suitable for dealing with fires involving electrical equipment or flammable liquids. The carbon dioxide gas displaces oxygen around the fire, suffocating it and suppressing the flames. However, it is important to note that CO2 extinguishers are not suitable for use in confined spaces, as they can displace breathable air.
4. Dry powder fire extinguishers:
Dry powder fire extinguishers are versatile as they can be used on a wide range of fire types, including Class A, B, C, and electrical fires. They work by interrupting the chemical reactions causing the fire. However, while effective, the discharge of dry powder can create a cloud that may obstruct vision or breathing.
5. Wet chemical fire extinguishers:
Wet chemical fire extinguishers are specifically designed for use on cooking oil and fat fires, commonly found in commercial kitchens. The extinguishing agent creates a soap-like layer on the burning fuel, preventing re-ignition. It is important to avoid using wet chemical extinguishers on electrical fires.
6. Specialized fire extinguishers:
There are also specialized fire extinguishers for specific applications, such as Class D extinguishers used for fires involving flammable metals like magnesium or titanium. These extinguishers contain powders specifically designed to react with the burning metal and extinguish the fire.
7. Fire extinguisher placement:
It is crucial to have the right type of fire extinguisher readily available in the appropriate locations. Fire extinguishers should be placed near potential fire hazards, easily accessible, and visible. Regular maintenance and inspection of extinguishers are essential to ensure their proper function.
Conclusion:
Understanding the different types of fire extinguishers and their specific uses is vital for fire safety and overall safety and security. Selecting the appropriate extinguisher for the potential fire risks and ensuring they are properly placed and maintained can significantly mitigate the impact of fires, preventing injuries, property damage, and potential loss of life.
Shop Focus brand wireless alarm, HB solar power alarm, HST fire alarm at https://www.vedardalarm.com