JPS52146594A - Sensing circuit double installation system of fire alarm facilities - Google Patents

Sensing circuit double installation system of fire alarm facilities

Info

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
Application number
JP6337976A
Other languages
Japanese (ja)
Inventor
Takeshi Nakano
Kazumasa Murakami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP6337976A priority Critical patent/JPS52146594A/en
Publication of JPS52146594A publication Critical patent/JPS52146594A/en
Pending legal-status Critical Current

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
JP6337976A 1976-05-31 1976-05-31 Sensing circuit double installation system of fire alarm facilities Pending JPS52146594A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4331694Y1 (en) * 1966-08-27 1968-12-23

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4331694Y1 (en) * 1966-08-27 1968-12-23

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