SECTION IINTRODUCTION1-1.GENERAL.1-2.This manual contains operation and maintenance information for a Halon 1301 fire extinguishing system, using360 psi pressurized cylinder and valve assemblies, engineered and manufactured by Walter Kidde. The pressurizedsystem is specifically engineered for a particular requirement to provide the best possible protection.1-3.Personnel responsible for operation and maintenance of this system should become familiar with the procedurescontained in this manual.1-4.The Halon 1301 fire extinguishing system is used for controlling and extinguishing Class A (cellulosic material),Class B (flammable liquids and gases), and Class C ( electrical) fires where a clean extinguishing agent is required. Aclean agent is one which leaves no residue after the fire is extinguished, and is particularly applicable to high valuematerials where the materials may be susceptible to agent damage.1-5.SAFETY1-6.The Halon 1301 vapor has a low level of toxicity. Based on Underwriters' Laboratories tests with animals theagent is classified as Group 6, which is the least toxic classification of life hazard for concentrations up to 20%. In order toprovide adequate safety factors, systems used in normally occupied areas are limited to design concentrations of 10%,and may exceed 7% only when the protected area can be evacuated within one minute. Areas not normally occupiedmay be flooded up to 15% concentration provided egress can be accomplished within 30 seconds. Should higherconcentrations be required or fast egress not be possible then provisions must be made to prevent inhalation of vapors.
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