JPS5988659A - 火災感知設備 - Google Patents

火災感知設備

Info

Publication number
JPS5988659A
JPS5988659A JP57197654A JP19765482A JPS5988659A JP S5988659 A JPS5988659 A JP S5988659A JP 57197654 A JP57197654 A JP 57197654A JP 19765482 A JP19765482 A JP 19765482A JP S5988659 A JPS5988659 A JP S5988659A
Authority
JP
Japan
Prior art keywords
fire
sensor wire
current
display means
sensing
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
JP57197654A
Other languages
English (en)
Japanese (ja)
Other versions
JPH045950B2 (OSRAM
Inventor
Toshiaki Doi
土肥　利明
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.)
SWCC Corp
Original Assignee
Showa Electric Wire and Cable Co
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 Showa Electric Wire and Cable Co filed Critical Showa Electric Wire and Cable Co
Priority to JP57197654A priority Critical patent/JPS5988659A/ja
Publication of JPS5988659A publication Critical patent/JPS5988659A/ja
Publication of JPH045950B2 publication Critical patent/JPH045950B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/018—Sensor coding by detecting magnitude of an electrical parameter, e.g. resistance

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Fire Alarms (AREA)
JP57197654A 1982-11-12 1982-11-12 火災感知設備 Granted JPS5988659A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57197654A JPS5988659A (ja) 1982-11-12 1982-11-12 火災感知設備

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57197654A JPS5988659A (ja) 1982-11-12 1982-11-12 火災感知設備

Publications (2)

Publication Number Publication Date
JPS5988659A true JPS5988659A (ja) 1984-05-22
JPH045950B2 JPH045950B2 (OSRAM) 1992-02-04

Family

ID=16378089

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57197654A Granted JPS5988659A (ja) 1982-11-12 1982-11-12 火災感知設備

Country Status (1)

Country Link
JP (1) JPS5988659A (OSRAM)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1743308A1 (en) * 2004-04-30 2007-01-17 Thorn Security Limited Testing a fire detector sensor
JP2012153179A (ja) * 2011-01-24 2012-08-16 Daido Signal Co Ltd 故障装置特定システム
CN103489277A (zh) * 2013-09-26 2014-01-01 胡亨华 在线监控电气线路电阻参数的火灾预警系统

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5644864A (en) * 1979-09-19 1981-04-24 Hitachi Cable Ltd Abnormal point sensing device for detection line

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5644864A (en) * 1979-09-19 1981-04-24 Hitachi Cable Ltd Abnormal point sensing device for detection line

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1743308A1 (en) * 2004-04-30 2007-01-17 Thorn Security Limited Testing a fire detector sensor
US7609154B2 (en) 2004-04-30 2009-10-27 Thorn Security Limited Testing a fire detector sensor
JP2012153179A (ja) * 2011-01-24 2012-08-16 Daido Signal Co Ltd 故障装置特定システム
CN103489277A (zh) * 2013-09-26 2014-01-01 胡亨华 在线监控电气线路电阻参数的火灾预警系统

Also Published As

Publication number Publication date
JPH045950B2 (OSRAM) 1992-02-04

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