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DSPA-5 Product information |
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Properties
The DSPA-5 generators (see figure below) consist of a body (1) where aerosol-forming agents are situated (2). The agents are separated from the inner surface of the body by a protective layer (3). The agents are separated from each other by an insulating element (10). The side surface of the body has a threaded bushing (4) for mounting of the starting assembly (5). There is a handle (6) on the body, which can be used for transportation and throwing of the generator into the area , where fire is located. Discharge of fire-extinguishing aerosol occurs via a slot nozzle (7), situated on the side surface of the body. The starting assembly consists of a metal housing, an activating device with a cord (8), a decelerator and a main compound. The upper part of the starting assembly is protected by a removable polyethylene cover (9), in order to prevent an accidental start of the generator.
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DSPA 5
1 - body
2 - aerosol forming agent
3 - protective layer
4 - threaded bushing
5 - starting assembly
6 - handle
7 - slot nozzle
8 - cord
9 - protective cover
10 - insulation element
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The generator is started by abruptly pulling the cord (away from the generator in a straight line). The decelerator that has now been ignited ensures a delay of 7-10 sec before the main compound is actuated.
This delay is required to throw the generator into the room where the fire is located. After the main compound of the starting assembly has been actuated, ignition of the aerosol-forming agent occurs.
When the starting assembly is actuated, a specific sound is heard. A small jet of smoke and a flame tip will come from a drain port on the metal housing of the assembly.
Functioning of the generator is based on the inhibition of oxidation-reduction reactions of highly refined particles (aerosols) of salts and oxides of alkali and alkaline metals. These particles precipitate with the combustion of the aerosol-forming agent and remain in suspension for a long time. The process of high-temperature combustion of the solid agent that is located in the generator body causes the formation of fire extinguishing aerosols.
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