EP 2437228 B1 20160810 - Alarm, hazard warning assembly and method for detecting circuit faults
Title (en)
Alarm, hazard warning assembly and method for detecting circuit faults
Title (de)
Gefahrenmelder, Gefahrenmeldeanlage und Verfahren zum Erkennen von Leitungsfehlern
Title (fr)
Alarme, installation d'alarme et procédé de reconnaissance d'erreurs de lignes de transmission
Publication
Application
Priority
DE 102010047227 A 20101004
Abstract (en)
[origin: EP2437228A2] The method involves setting power supply voltage for hazard detector (8), to measure first terminal voltage. The second terminal voltage of detector is measured by loading voltage source with defined current. A comparison voltage is detected by comparing first and second terminal voltages. The third terminal voltage of detector is measured when switch of connecting line (7) of detectors is closed, and is compared with comparison voltage. The switch is opened when third terminal voltage is below comparison voltage, to initiate operation of detector. Independent claims are included for the following: (1) hazard detector; and (2) short circuit disconnecting switch.
IPC 8 full level
G08B 26/00 (2006.01)
CPC (source: EP)
G08B 26/005 (2013.01); G08B 29/123 (2013.01)
Citation (examination)
EP 1197936 A2 20020417 - JOB LIZENZ GMBH & CO KG [DE]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102010047227 B3 20120301; EP 2437228 A2 20120404; EP 2437228 A3 20120516; EP 2437228 B1 20160810
DOCDB simple family (application)
DE 102010047227 A 20101004; EP 11008014 A 20111004