FIELD: fire safety.
SUBSTANCE: mechanism comprises a frangible closure formed as a cylindrical electrical insulator with thinning in the middle part and mounted between the sprinkle valve and the adjusting screw of sprinkler. There is a temperature sensor arranged in the form of wire ring with shape memory effect with rigidly fixed ends. The ring embraces closure and one of the sides of sprinkler bow, it is connected to the control unit and a power source with electrically forced start.
EFFECT: increase of water extinguishing system reliability.
5 cl, 3 dwg
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