Fire extinguishers are some of the devices used for active fire protection. Because of their limited size and capacity, they are used for small-scale fires only in emergency situations. They are very ineffective in out-of-control situations. Their efficiency is highest in ground fires. When in need of the best fire extinguisher Massachusetts should be the location to give priority.
The device consists of a hand-held cylindrical pressure vessel that contains a fire extinguishing agent, which is released when the device is operated. There are also devices that do not consist of cylindrical pressure vessels, but these ones are less common. In most countries, especially the United States, commercial and industrial buildings are required to have some kind of device for extinguishing fires.
It is a requirement for all extinguishers installed in buildings to be serviced and inspected every year by a service company in this industry. Some jurisdictions require the inspection and servicing to be done on a more regular basis. After servicing or inspection, the device must be marked by the servicer to indicate the kind or service performed. Some of the services that can be performed include inspection, replacement, and recharge.
Two main kinds of extinguishers are currently in use, that is, stored pressure and cartridge-operated extinguishers. The expellant and extinguishing agent in stored pressure extinguishers are stored in the same container. The kind of agent used dictates the kind of propellant used. Nitrogen is used as the propellant if the agent is dry chemical. Air acts as the propellant in foam- and water-based devices. Stored-pressure devices are more common compared to the other variety.
In cartridge-operated extinguishers, expellant and extinguishing agents get stored in separate containers. The expellant is exposed to the agent by puncturing the cartridge. The use of cartridge-operated extinguishers is often limited to industrial applications where they are used more regularly than average. Their simpler and prompter use makes them better over the other model. It takes a comparatively shorter time to discharge and recharge the device than store pressure devices.
As opposed to stored pressure models, cartridge-operated models use compressed carbon dioxide in the place of nitrogen. In the United States, cartridge operated extinguishers can be found in dry powder and dry chemical types, foam, wetting agent, and water. Another classification of extinguishers places them into two other classes, that is cart-mounted and handheld devices. Cart-mounted varieties are also called wheeled extinguishers.
Handheld models are usually very light, weighing between 0.5 and 14 kilograms. The light weight makes them easily portable. The wheeled varieties are usually relatively heavy, weighing over 23 kilograms. The wheeled models are commonly found at airport runways, docks, marinas, heliports, and construction sites among other sites. They have handles for use to pull them from location to location.
Handheld devices are meant for installation in buildings in places where one can access them easily. Typically, they are placed against walls in places where people frequent. Most jurisdictions have made it mandatory for the devices to be installed in aircraft, watercraft, and automobiles. How high on the wall the device is installed is governed by the fire department.
The device consists of a hand-held cylindrical pressure vessel that contains a fire extinguishing agent, which is released when the device is operated. There are also devices that do not consist of cylindrical pressure vessels, but these ones are less common. In most countries, especially the United States, commercial and industrial buildings are required to have some kind of device for extinguishing fires.
It is a requirement for all extinguishers installed in buildings to be serviced and inspected every year by a service company in this industry. Some jurisdictions require the inspection and servicing to be done on a more regular basis. After servicing or inspection, the device must be marked by the servicer to indicate the kind or service performed. Some of the services that can be performed include inspection, replacement, and recharge.
Two main kinds of extinguishers are currently in use, that is, stored pressure and cartridge-operated extinguishers. The expellant and extinguishing agent in stored pressure extinguishers are stored in the same container. The kind of agent used dictates the kind of propellant used. Nitrogen is used as the propellant if the agent is dry chemical. Air acts as the propellant in foam- and water-based devices. Stored-pressure devices are more common compared to the other variety.
In cartridge-operated extinguishers, expellant and extinguishing agents get stored in separate containers. The expellant is exposed to the agent by puncturing the cartridge. The use of cartridge-operated extinguishers is often limited to industrial applications where they are used more regularly than average. Their simpler and prompter use makes them better over the other model. It takes a comparatively shorter time to discharge and recharge the device than store pressure devices.
As opposed to stored pressure models, cartridge-operated models use compressed carbon dioxide in the place of nitrogen. In the United States, cartridge operated extinguishers can be found in dry powder and dry chemical types, foam, wetting agent, and water. Another classification of extinguishers places them into two other classes, that is cart-mounted and handheld devices. Cart-mounted varieties are also called wheeled extinguishers.
Handheld models are usually very light, weighing between 0.5 and 14 kilograms. The light weight makes them easily portable. The wheeled varieties are usually relatively heavy, weighing over 23 kilograms. The wheeled models are commonly found at airport runways, docks, marinas, heliports, and construction sites among other sites. They have handles for use to pull them from location to location.
Handheld devices are meant for installation in buildings in places where one can access them easily. Typically, they are placed against walls in places where people frequent. Most jurisdictions have made it mandatory for the devices to be installed in aircraft, watercraft, and automobiles. How high on the wall the device is installed is governed by the fire department.
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