JPS52153698A - Device for detecting disconnection of fire alarm facility - Google Patents

Device for detecting disconnection of fire alarm facility

Info

Publication number
JPS52153698A
JPS52153698A JP7041176A JP7041176A JPS52153698A JP S52153698 A JPS52153698 A JP S52153698A JP 7041176 A JP7041176 A JP 7041176A JP 7041176 A JP7041176 A JP 7041176A JP S52153698 A JPS52153698 A JP S52153698A
Authority
JP
Japan
Prior art keywords
fire alarm
detecting disconnection
alarm facility
facility
disconnection
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.)
Granted
Application number
JP7041176A
Other languages
Japanese (ja)
Other versions
JPS5925275B2 (en
Inventor
Yukio Tomioka
Nobuo Hori
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.)
Hochiki Corp
Original Assignee
Hochiki Corp
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 Hochiki Corp filed Critical Hochiki Corp
Priority to JP51070411A priority Critical patent/JPS5925275B2/en
Publication of JPS52153698A publication Critical patent/JPS52153698A/en
Publication of JPS5925275B2 publication Critical patent/JPS5925275B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Alarm Systems (AREA)
  • Fire Alarms (AREA)
JP51070411A 1976-06-17 1976-06-17 Disconnection detection device in fire alarm equipment Expired JPS5925275B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51070411A JPS5925275B2 (en) 1976-06-17 1976-06-17 Disconnection detection device in fire alarm equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51070411A JPS5925275B2 (en) 1976-06-17 1976-06-17 Disconnection detection device in fire alarm equipment

Publications (2)

Publication Number Publication Date
JPS52153698A true JPS52153698A (en) 1977-12-20
JPS5925275B2 JPS5925275B2 (en) 1984-06-15

Family

ID=13430692

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51070411A Expired JPS5925275B2 (en) 1976-06-17 1976-06-17 Disconnection detection device in fire alarm equipment

Country Status (1)

Country Link
JP (1) JPS5925275B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6174185U (en) * 1984-10-16 1986-05-20
JPH04101193U (en) * 1991-01-31 1992-09-01 ニツタン株式会社 Disaster prevention equipment repeater connection abnormality detection device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6174185U (en) * 1984-10-16 1986-05-20
JPH0353349Y2 (en) * 1984-10-16 1991-11-21
JPH04101193U (en) * 1991-01-31 1992-09-01 ニツタン株式会社 Disaster prevention equipment repeater connection abnormality detection device

Also Published As

Publication number Publication date
JPS5925275B2 (en) 1984-06-15

Similar Documents

Publication Publication Date Title
GB1552294A (en) Fire detection system
JPS5326698A (en) Fire alarm
JPS5271998A (en) Smoke sensitive fire alarm
JPS52113785A (en) Smoke detecting apparatus
JPS5330027A (en) Means for detecting destruction of pipelines
JPS52153698A (en) Device for detecting disconnection of fire alarm facility
JPS52113695A (en) Fire alarm system
JPS5313396A (en) Fire alarm
JPS532099A (en) Fire alarm continuity tester
ZA77493B (en) Fire alarm devices
JPS52112299A (en) Fire alarm facility trouble sensor detector
JPS51115098A (en) Automatic fire alarm* method and device for extinguishing fire
JPS5320798A (en) Fire alarm
JPS52150999A (en) Fire warning device
GB1539792A (en) Alarm device
JPS52142999A (en) Fire alarm facility
GB1550338A (en) Visual alarm system
JPS5420353A (en) Device for detecting state of fuse
JPS5355177A (en) Device for detecting disconnection of signal lines
KR780001453Y1 (en) Detection confirmation device for fire alarm
JPS5518767A (en) Fire alarm unit continuity testing circuit
JPS5368200A (en) Fire alarm olperation tester
JPS5323685A (en) Device for detecting inside of pipe
JPS5286098A (en) Fire alarm
JPS5295999A (en) Fire alarm