EP 2047720 B1 20130904 - APPARATUS AND METHOD FOR MONITORING AT LEAST ONE FLUORESCENT LAMP
Title (en)
APPARATUS AND METHOD FOR MONITORING AT LEAST ONE FLUORESCENT LAMP
Title (de)
VORRICHTUNG UND VERFAHREN ZUR ÜBERWACHUNG WENIGSTENS EINER LEUCHTSTOFFLAMPE
Title (fr)
PROCÉDÉ ET DISPOSITIF DE CONTRÔLE D'AU MOINS UN TUBE FLUORESCENT
Publication
Application
Priority
- EP 2007006689 W 20070727
- DE 102006036292 A 20060803
Abstract (en)
[origin: WO2008014941A1] An apparatus for monitoring at least one fluorescent lamp, in particular in an explosion-hazard area, which fluorescent lamp has a lamp tube with electrodes arranged at its ends in the form of filaments, and has a ballast, is improved in order to avoid an excessive temperature increase while maintaining the appropriate explosion protection in that the monitoring apparatus has at least one temperature measurement device, associated with a filament, and an electronic interruption device, by means of which interruption device the power supply can be interrupted by means of the ballast on reaching a predetermined critical temperature. The invention likewise relates to a corresponding method for monitoring at least one fluorescent lamp, in particular in an explosion-hazard area. In this method, the temperature is first of all detected in the area of at least one filament of the fluorescent lamp. The determined temperature is then compared with a predetermined critical temperature, and the power supply to the filament is interrupted by a ballast if the determined temperature reaches or exceeds the predetermined critical temperature.
IPC 8 full level
H05B 41/298 (2006.01); F21V 25/12 (2006.01)
CPC (source: EP NO US)
F21V 25/04 (2013.01 - EP NO US); F21V 25/10 (2013.01 - EP NO US); H01J 61/52 (2013.01 - EP NO US); H01J 61/56 (2013.01 - EP NO US); H05B 41/298 (2013.01 - EP NO US); F21V 25/12 (2013.01 - EP NO US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2008014941 A1 20080207; WO 2008014941 B1 20080327; CA 2658505 A1 20080207; CA 2658505 C 20171107; CN 101502183 A 20090805; CN 101502183 B 20130710; DE 102006036292 A1 20080214; EP 2047720 A1 20090415; EP 2047720 B1 20130904; ES 2437589 T3 20140113; NO 20090429 L 20090302; NO 340663 B1 20170529; PL 2047720 T3 20131231; US 2009309518 A1 20091217; US 8018179 B2 20110913
DOCDB simple family (application)
EP 2007006689 W 20070727; CA 2658505 A 20070727; CN 200780028886 A 20070727; DE 102006036292 A 20060803; EP 07786400 A 20070727; ES 07786400 T 20070727; NO 20090429 A 20090128; PL 07786400 T 20070727; US 37586807 A 20070727