FIRE ALARM

FIRE ALARM

FIELD: fire alarms, possible use in fire signaling systems for detecting increased environment temperature exceeding the predetermined limit value. ^ SUBSTANCE: thermal fire alarm contains light diode indicator, six resistors, three capacitors, diode, two input clamps, two transistors, thermal senso...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: ABUSHKEVICH VLADIMIR ANTONOVICH, MISEVICH IGOR' ZAKHAROVICH, BAKANOV VLADIMIR VIKTOROVICH
Format: Patent
Sprache:eng ; rus
Schlagworte:
ALARM SYSTEMS
ORDER TELEGRAPHS
PHYSICS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
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Beschreibung
Zusammenfassung:FIELD: fire alarms, possible use in fire signaling systems for detecting increased environment temperature exceeding the predetermined limit value. ^ SUBSTANCE: thermal fire alarm contains light diode indicator, six resistors, three capacitors, diode, two input clamps, two transistors, thermal sensor. Technical result is achieved due to introduction of second diode and seventh resistor. In suggested thermal fire annunciator due to usage of newly introduced elements and new connections, preservation of "Fire" condition is ensured after end of effect of reverse direction voltage impulses, which are created by a group of receiving and controlling devices in fire alarm loops. ^ EFFECT: increased efficiency. ^ 1 dwg