JPS5469736A - Emergency light - Google Patents
Emergency lightInfo
- Publication number
- JPS5469736A JPS5469736A JP13817377A JP13817377A JPS5469736A JP S5469736 A JPS5469736 A JP S5469736A JP 13817377 A JP13817377 A JP 13817377A JP 13817377 A JP13817377 A JP 13817377A JP S5469736 A JPS5469736 A JP S5469736A
- Authority
- JP
- Japan
- Prior art keywords
- power source
- commercial
- source switch
- impedance
- lighting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Audible And Visible Signals (AREA)
- Stand-By Power Supply Arrangements (AREA)
Abstract
PURPOSE: To make the commercial power source disconnectable without operating an energency lighting even under a condition with two-wire connection of wiring, by such means that with an impedance connected in parallel to a power source switch, the value of said impedance be set to a prescribed level.
CONSTITUTION: A power off detector circuit 5 and a commercial lighting circuit 4 are connected to the commercial power source through a power source switch 6, simultaneously with an impedance 7 connected in parallel to the power source switch. The value of said impedance will be set to a level in such manner that a lamp 2 be not lighted by the commercial lighting circuit at the time for the commercial power source 1 not being interrupted forther for the power source switch being opened. And the power off detector circuit is made operating a connection to a side of the commercial lighting circuit regardless of the state of on-off of the power source switch for the commercial power source if in a state of not interruption. In this way, with the power source switch made open, the lamp can be extinguished without being made an emergency lighting, eliminating a requirement of three- wire connection of wiring processed for extinguishing the commercial lighting in such manner as made in the past.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13817377A JPS5469736A (en) | 1977-11-15 | 1977-11-15 | Emergency light |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13817377A JPS5469736A (en) | 1977-11-15 | 1977-11-15 | Emergency light |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5469736A true JPS5469736A (en) | 1979-06-05 |
Family
ID=15215736
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13817377A Pending JPS5469736A (en) | 1977-11-15 | 1977-11-15 | Emergency light |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5469736A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014061214A1 (en) | 2012-10-18 | 2014-04-24 | 株式会社アドバンスクリエート | Power failure detection method, power failure detector, lighting device, and power supply device |
-
1977
- 1977-11-15 JP JP13817377A patent/JPS5469736A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014061214A1 (en) | 2012-10-18 | 2014-04-24 | 株式会社アドバンスクリエート | Power failure detection method, power failure detector, lighting device, and power supply device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB2001811A (en) | Gas discharge lamp control circuit | |
JPS5469736A (en) | Emergency light | |
JPS5426691A (en) | Refuge guide unit | |
JPS51117624A (en) | Flashlight unit warning circuit | |
JPS532728A (en) | Flame detector | |
JPS5529728A (en) | Battery life display unit of electronic watch | |
JPS51127583A (en) | Lighting apparatus | |
JPS5218077A (en) | Discharge lamp lighting device | |
JPS5343255A (en) | High frequency heater | |
JPS5217795A (en) | Fire alarming device | |
JPS51118556A (en) | Gas ignition device | |
JPS5469096A (en) | Signal equipment for extinction-type induction lamp | |
JPS52118975A (en) | Lighting device for discharge lamp | |
JPS52154159A (en) | Door switch of refrigerator | |
JPS5240999A (en) | Photoelectric control circuit for fault lamp | |
JPS54153068A (en) | Lamp lighting circuit of electronic wristwatches | |
JPS5220679A (en) | Switching device of a descharge lamp | |
JPS52122498A (en) | Operation display lamp lighting circuit of fire sensor | |
JPS5410652A (en) | Automatic phase controller | |
JPS56108326A (en) | Preventing device against forgetting to switch off light | |
JPS5321599A (en) | Lamp disconnection detecting circuit | |
JPS5218079A (en) | Discharge lamp lighting device | |
JPS5427281A (en) | Emergency lighting circuit | |
JPS51115795A (en) | Lamp ignition circuit | |
JPS5438676A (en) | Automatic flashing device |