| 摘要 |
The wipo cut-off radiator in accordance with DE-GM 9200222 which is already tried and tested in practice and which, by means of sensed inherent reflected radiation, temporarily interrupts, again and again, the feeding of the halogen lamp for the purpose of thermally saving objects which have just moved into the immediate vicinity in front of said lamp (such as, in particular, upper edges of doors of kitchen furniture under an overhanging baldachin) is made into a genuine "safety radiator" for which installation instructions with respect to distance requirements are no longer necessary, in that the energising of the halogen lamp is interrupted irreversibly should an operational disturbance occur in the cut-off device. This is determined by a logical comparison which monitors a plurality of cut-off devices, which operate in parallel in the radiation luminaire, for always constant output states and, in the case of mutual deviations, burns through a safety element in the control circuit for the make contact relay (operating contact relay) upstream of the halogen lamp in order finally to take this radiation luminaire out of operation. In addition, a periodic testing of the readiness for operation of the cut-off device can be performed by means of test signals which, after the switching on, and from time to time during the operation, of the luminaire, simulate a sensor driving of the cut-off devices or even excite the sensors via a separate radiation source as reflected-radiation replacement.
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