JPS52146594A - Sensing circuit double installation system of fire alarm facilities - Google Patents
Sensing circuit double installation system of fire alarm facilitiesInfo
- Publication number
- JPS52146594A JPS52146594A JP6337976A JP6337976A JPS52146594A JP S52146594 A JPS52146594 A JP S52146594A JP 6337976 A JP6337976 A JP 6337976A JP 6337976 A JP6337976 A JP 6337976A JP S52146594 A JPS52146594 A JP S52146594A
- Authority
- JP
- Japan
- Prior art keywords
- installation system
- sensing circuit
- fire alarm
- fire
- double installation
- 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
Abstract
PURPOSE: To obtain the apparatus which achieves the improvement in sensing accuracy and reliability by employing a double installation system for fire sensing circuits, making the sum of the sensing signals of both fire sensors as a fire occurence signal and making the sensing signal of one sensor as a fire caution signal.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6337976A JPS52146594A (en) | 1976-05-31 | 1976-05-31 | Sensing circuit double installation system of fire alarm facilities |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6337976A JPS52146594A (en) | 1976-05-31 | 1976-05-31 | Sensing circuit double installation system of fire alarm facilities |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS52146594A true JPS52146594A (en) | 1977-12-06 |
Family
ID=13227591
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6337976A Pending JPS52146594A (en) | 1976-05-31 | 1976-05-31 | Sensing circuit double installation system of fire alarm facilities |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS52146594A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4331694Y1 (en) * | 1966-08-27 | 1968-12-23 |
-
1976
- 1976-05-31 JP JP6337976A patent/JPS52146594A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4331694Y1 (en) * | 1966-08-27 | 1968-12-23 |
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