FIELD: fire fighting in submarines, manned enclosures, compartments to extinguish fires without people evacuation and without discharge into the air. SUBSTANCE: system comprises pressurized nitrogen cylinder, distribution pipeline, locking-trigger armature, filtered pressurizer for removing of combustion products from gas-and-air medium, gas-separating membrane device and nitrogen return pipeline to return nitrogen into cylinders. EFFECT: increased effectiveness, possibility of system reusing. 1 dwg _
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