These factors must be considered in the design of systems for occupied areas. It is highly important to provide a systemwith rapid discharge ( less than 10 seconds normally) in order to minimize the vapor-flame exposure time. The occupantsof a halon protection area will immediately recognize the decomposition products as they are sharp and acrid even in verysmall amounts. The obvious warning to evacuate must be observed.1-7.Should it be necessary to enter a space containing halon and possibly also decomposition products, certainprecautions are in order;1.Use a fresh air mask or self-contained breathing equipment.2.Donotuse a filter type or canister mask.3.Do not enter space unless observed from without.4.Train persons involved in the hazard area in fire drill.5.Provide adequate escape routes with directions signs and alarms6.Maintain properly all life saving equipment involved.1-8.The effects of exposure to Halon 1301 may persist for a short period of time following exposure; however,recovery may be expected to be rapid and complete. Halon 1301 would not be expected to accumulate in the body evenwith repeated exposures. Anyone suffering from the toxic effects of Halon 1301 vapors should immediately move or bemoved to fresh air. Call a physician in treating persons suffering toxic effects due to exposure to this agent, the use ofepinephrine (adrenaline) and similar drugs must be avoided because they may produce cardiac arrhythmias, includingventricular fibrillation.1-9.GENERAL DESCRIPTION OF SYSTEM AND COMPONENTS1-10.The Kidde Halon 1301 Fire Extinguishing System consists basically of an arrangement of cylinder and valveassemblies connected thru piping conduits terminating in distribution nozzles. The quantity of Halon 1301 used isdetermined by the size of the protected area and the amount of concentration required for the particular fire hazard.Provisions are also made for control of the agent discharge thru various arrangements of releasing devices.
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