ALARM DEVICE FOR GIVING WARNING AGAINST APPROACH TO HAZARDOUS AREA

PURPOSE:To prevent accidents previously by giving warning against approach of a worker to hazardous area on a hot-line side, in case of working on a steel tower for a high-voltage transmission line. CONSTITUTION:The alarm device is composed of a fitting part 16 for fixing an alarm device 1 to a stee...

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Hauptverfasser:	OKAWA REIJI, BANDA RIYOUICHI
Format:	Patent
Sprache:	eng
Schlagworte:	ALARM SYSTEMS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINEDOPTICAL AND ELECTRIC CABLES OR LINES ORDER TELEGRAPHS PHYSICS SIGNALLING SIGNALLING OR CALLING SYSTEMS
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Beschreibung
Zusammenfassung:	PURPOSE:To prevent accidents previously by giving warning against approach of a worker to hazardous area on a hot-line side, in case of working on a steel tower for a high-voltage transmission line. CONSTITUTION:The alarm device is composed of a fitting part 16 for fixing an alarm device 1 to a steel tower, and a device body 10 fixed to the fitting part 16. In the device body 10, sensors 11 and 12 such as infrared sensors, etc., for detecting a worker entering a fixed area on the steel tower, alarm members comprising a buzzar 13, a lighting device 14, etc., to be operated by the detection of the sensors 11 and 12, and dry cells 15 of a power source for them are assembled into a united body.