GB8332750D0 - Fire alarm systems - Google Patents

Fire alarm systems

Info

Publication number
GB8332750D0
GB8332750D0 GB838332750A GB8332750A GB8332750D0 GB 8332750 D0 GB8332750 D0 GB 8332750D0 GB 838332750 A GB838332750 A GB 838332750A GB 8332750 A GB8332750 A GB 8332750A GB 8332750 D0 GB8332750 D0 GB 8332750D0
Authority
GB
United Kingdom
Prior art keywords
fire alarm
alarm systems
systems
fire
alarm
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.)
Withdrawn
Application number
GB838332750A
Other versions
GB2151058A (en
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.)
SOUND DIFFUSION PLC
Original Assignee
SOUND DIFFUSION PLC
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 SOUND DIFFUSION PLC filed Critical SOUND DIFFUSION PLC
Priority to GB08332750A priority Critical patent/GB2151058A/en
Publication of GB8332750D0 publication Critical patent/GB8332750D0/en
Priority to EP84308529A priority patent/EP0144250A3/en
Publication of GB2151058A publication Critical patent/GB2151058A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/06—Monitoring of the line circuits, e.g. signalling of line faults
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B27/00—Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/04—Monitoring of the detection circuits

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Alarm Systems (AREA)
  • Fire Alarms (AREA)
GB08332750A 1983-12-08 1983-12-08 Fire alarm systems with incipient hyper-sensitivity monitoring Withdrawn GB2151058A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB08332750A GB2151058A (en) 1983-12-08 1983-12-08 Fire alarm systems with incipient hyper-sensitivity monitoring
EP84308529A EP0144250A3 (en) 1983-12-08 1984-12-07 Fire alarm systems with incipient hyper-sensitivity monitoring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08332750A GB2151058A (en) 1983-12-08 1983-12-08 Fire alarm systems with incipient hyper-sensitivity monitoring

Publications (2)

Publication Number Publication Date
GB8332750D0 true GB8332750D0 (en) 1984-01-18
GB2151058A GB2151058A (en) 1985-07-10

Family

ID=10553005

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08332750A Withdrawn GB2151058A (en) 1983-12-08 1983-12-08 Fire alarm systems with incipient hyper-sensitivity monitoring

Country Status (2)

Country Link
EP (1) EP0144250A3 (en)
GB (1) GB2151058A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3202793B2 (en) * 1992-05-28 2001-08-27 能美防災株式会社 Fire detector sensitivity measurement device
FR2934401B1 (en) * 2008-07-28 2010-08-13 Legrand France IMPROVED SAFETY INSTALLATION AND CORRESPONDING MONITORING METHOD
US9030314B2 (en) 2013-03-15 2015-05-12 Tyco Fire & Security Gmbh Method for inspecting and testing notification appliances in alarm systems

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202976A (en) * 1959-12-03 1965-08-24 Scully Signal Co Supervisory system with failure discrimination
US3406389A (en) * 1965-08-23 1968-10-15 Whittaker Corp Fire warning systems
CH495022A (en) * 1969-09-16 1970-08-15 Cerberus Ag Fire alarm system with a device for line monitoring
GB1365018A (en) * 1972-11-23 1974-08-29 Hochiki Co Ionization type smoke detector
JPS595955B2 (en) * 1979-07-27 1984-02-08 ホーチキ株式会社 fire alarm
GB2069205B (en) * 1980-02-06 1983-11-30 Maxted C W Device for use in an electrical circuit and comprising two separabel parts

Also Published As

Publication number Publication date
EP0144250A2 (en) 1985-06-12
GB2151058A (en) 1985-07-10
EP0144250A3 (en) 1987-09-16

Similar Documents

Publication Publication Date Title
GB2129180B (en) Fire alarm systems
GB2141851B (en) Fire alarm system
GB2164476B (en) Fire alarm system
GB2164774B (en) Fire alarm system
GB8516218D0 (en) Fire alarm system
GB2135801B (en) Fire alarm system
GB2177529B (en) Alarm systems
GB2107099B (en) Fire alarm system
GB2115966B (en) Fire alarm system
GB2169734B (en) Fire alarm system
GB2149950B (en) Alarm system
DE3274690D1 (en) Fire alarm system
GB2109602B (en) Fire alarm system
JPS57199091A (en) Fire alarm
GB2149658B (en) Fire extinguishing systems
GB2101784B (en) Fire alarms
GB8332751D0 (en) Monitored line alarm systems
GB8329794D0 (en) Alarm system
GB8404121D0 (en) Alarm systems
GB8332750D0 (en) Fire alarm systems
JPS56116194A (en) Fire alarm system
GB8423298D0 (en) Intruder alarm systems
GB8318664D0 (en) Fire protection systems
GB8318158D0 (en) Intelligence fire alarm systems
GB8304369D0 (en) Alarm systems

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)