What type of fire extinguisher? Extinguishers usually available on fire equipment includes dry chemical and pressurized water. Some Departments may have access to “clean agent” extinguishers, or it placed in areas such as computer rooms. Other extinguishers mounted on buildings will likely be similar to that performed on equipment kitchen commercial, with some now equipped with grade K unit.
So, what type of fire extinguisher must we know?
Water extinguisher has a range of up to 40 feet and sufficient discharge for about one minute. Tip: on a water extinguisher, fire may find it useful to place a finger over the tip to create a pattern of “spray” rather than solid-stream that usually discharge from it.
Water extinguisher foam or other additives have advantages that useful on small flame flammable liquid (class B). Several departments routinely add foam wetting agents to all water extinguishers provides these benefits.
2. Dry chemical
Dry-chemical extinguishers come in many types. Most common is the unit A-B-C multi-purpose which can cause problems if the corrosive depleted on electrical equipment and does not clean up quickly. K purple, kind of dry-chemical agents rated only for B-C fire and has proven to be quite effective on fires flammable liquids when used in conjunction with the AFF foam.
3. Carbon dioxide (CO2)
Some companies do not carry fire extinguishers CO2 because they are expensive to purchase and recharge. Although what type of fire extinguisher CO2 only rated for use on class B and C fires. They need a bit of clean-up and efficient in dealing with electrical fires without collateral damage issue presented by the unit dry-chemistry.
CO2 function by reducing oxygen in the area of the fire, so back flashing can happen if a fire in ventilated areas. During the exile can quickly split second and you have to get close to the fire to be effective. Also, CO2 discharge at low temperature requires that gloves are worn to avoid contact with the extinguisher discharge Horn.
4. Clean agent
What type of fire extinguisher rated for class B and C fires, and some are effective on class A fires, too. A big plus: they require little cleaning. HALON is a clean agent used widely. It found that adverse effects of the Earth’s ozone. There’s still a halon fire out there, and they can still use it to fix the fire. The clean agent does not have the same cold problem as CO2, and release times vary by the size of the unit.
5. Dry powder
Firefighters many confuse what type of fire extinguisher between dry-powder with a dry-chemical unit, but they are not the same. Due to the nature of the Class D fires, these extinguishers do not have to have a great range.
Class D fire extinguishers can be expensive, and must select the right agent based on combustible metal is anticipated in the Department’s coverage area. Many fire departments may never face the hazards of class D, but it is worth remembering that particular vehicle has a magnesium engine blocks and wheels. It is possible that other flammable metal will only become more common in construction vehicles and electric train.
6. Wet chemistry
Wet chemical extinguisher designed specifically for the use of the class K fires. In many cases, they also can bring the value of class A. At least one manufacturer claims fire wet-chemical is safe for use on electrical energy. Although what type of fire extinguisher bring no value to class C.
The wet chemical agent was dismissed as a fine mist to minimize the danger of oil splashes and reduces the possibility that a hazard will revive. There will be a cleanup with a fire extinguisher class K, but firefighters can decrease it by applying agents. Discharge standard time is about 1 minute.