advanced extinguishing solution as an excellent solution for the protection of high-value assets, business processes and people. it is based on the environmentally friendly extinguishing agent clean agent extinguishing systems fight fires using the chemical extinguishant novec™ 1230 3m™ or with the chemical extinguishant hfc-227ea. this extinguishant is neither corrosive nor electrically conductive. it is thus especially suitable for protecting rooms containing electric and electronic equipment. the systems extinguish fires without leaving residue, while offering a high level of personal and environmental protection at the same time. they are particularly suitable for the protection of small and medium-sized rooms, and the extinguishing agent can be stored compactly, either inside the room or in another area.
total flooding systems are used for rooms, ovens, enclosed machines, and other enclosed spaces containing materials extinguishable by carbon dioxide. otherwise, additional carbon dioxide must be provided to compensate for the leakage. automatic closing devices for openings must be able to overcome the discharge pressure of the carbon dioxide. a typical arrangement of a total flooding carbon dioxide system is shown in figure 8-33. local application systems are used to protect hazards, such as oil-filled transformers and paint dip tanks. several types of halogenated gas systems have been developed for fire protection purposes: halon 104, halon 1001, halon 1011, halon 1202, halon 1211, halon 1301, and halon 2402. the numbers relate to the chemical formulas of the gases. primarily, halon 1301 and halon 1211 are in general use in the united states today.
halogenated gas systems are used in the following situations: l a clean extinguishing agent is needed. for effective fire-fighting purposes, a minimum concentration of 5 percent is recommended for total flooding systems for surface fires of ordinary combustibles. halon 1211 is toxic to people when concentrations exceed 4 percent. halon 1211 is normally used in portable extinguishers because it is not in enough concentration to be a hazard for people. equipment for halon fire extinguishing systems is similar to that used for high-pressure carbon dioxide systems. halon 1301 is the least toxic of the halongenated gases and does not harm personnel when concentrations are below 10 percent.
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total flooding system means a fixed suppression system which is arranged to automatically discharge a predetermined concentration of agent into an enclosed space for the purpose of fire extinguishment or control. this condition is created by reducing the oxygen concentration and by raising the heat capacity of the atmosphere supporting the flame. the addition of a the systems extinguish fires without leaving residue, while offering a high level of personal and environmental protection at the same time. they are for effective total flooding, the space must be reasonably well enclosed. openings must be arranged to close automatically and ventilation equipment to shut, flooding system – fire, local application system, class a fire, bromotrifluoromethane, dry chemical fire extinguisher, abc fire extinguisher, carbon dioxide fire extinguisher class, deluge system.
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