GB9118584D0 - Sensor cables and installations incorporating them - Google Patents

Sensor cables and installations incorporating them

Info

Publication number
GB9118584D0
GB9118584D0 GB919118584A GB9118584A GB9118584D0 GB 9118584 D0 GB9118584 D0 GB 9118584D0 GB 919118584 A GB919118584 A GB 919118584A GB 9118584 A GB9118584 A GB 9118584A GB 9118584 D0 GB9118584 D0 GB 9118584D0
Authority
GB
United Kingdom
Prior art keywords
heat
sensor cables
fusible
temperatures
detector
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
GB919118584A
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.)
Balfour Beatty PLC
Original Assignee
BICC 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 BICC PLC filed Critical BICC PLC
Priority to GB919118584A priority Critical patent/GB9118584D0/en
Publication of GB9118584D0 publication Critical patent/GB9118584D0/en
Priority to DE69212256T priority patent/DE69212256T2/en
Priority to AT92307781T priority patent/ATE140550T1/en
Priority to EP92307781A priority patent/EP0530012B1/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/02—Mechanical actuation of the alarm, e.g. by the breaking of a wire
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Cable Accessories (AREA)
  • Insulated Conductors (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

A heat-detector cable comprises first and second digital heat-detector elements assembled in close proximity, each comprising a pair of conductors biassed towards each other but normally prevented from contacting by a coating of a fusible insulating material on at least one of them, the response characteristics of the said first and second elements on exposure to hazardous temperatures differing such that the first said element responds sooner than the second. Preferably the fusible materials have substantially different softening temperatures, that in the first element having the lower softening temperature. Fire or overtemperature conditions can be distinguished from faults by the difference in response times. <IMAGE>
GB919118584A 1991-08-30 1991-08-30 Sensor cables and installations incorporating them Pending GB9118584D0 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB919118584A GB9118584D0 (en) 1991-08-30 1991-08-30 Sensor cables and installations incorporating them
DE69212256T DE69212256T2 (en) 1991-08-30 1992-08-26 Arrangement for heat sensor cables and cables therefor
AT92307781T ATE140550T1 (en) 1991-08-30 1992-08-26 ARRANGEMENT FOR HEAT SENSOR CABLES AND CABLES THEREFOR
EP92307781A EP0530012B1 (en) 1991-08-30 1992-08-26 Heat-detector cable installations and cables for use in them

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB919118584A GB9118584D0 (en) 1991-08-30 1991-08-30 Sensor cables and installations incorporating them

Publications (1)

Publication Number Publication Date
GB9118584D0 true GB9118584D0 (en) 1991-10-16

Family

ID=10700674

Family Applications (1)

Application Number Title Priority Date Filing Date
GB919118584A Pending GB9118584D0 (en) 1991-08-30 1991-08-30 Sensor cables and installations incorporating them

Country Status (4)

Country Link
EP (1) EP0530012B1 (en)
AT (1) ATE140550T1 (en)
DE (1) DE69212256T2 (en)
GB (1) GB9118584D0 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101164639B (en) 2006-10-19 2012-04-18 首安工业消防有限公司 Recovery-free type linear temperature-sensitive detector with short-circuit fault alarm
US20110102183A1 (en) * 2008-03-20 2011-05-05 Siemens Aktiengesellschaft Spatially resolved temperature measurement inside a spatial detection region
CN101667318B (en) * 2009-10-22 2011-11-16 曾学义 Linear heat fire detector and method for improving non-operating temperature rating
RU2510911C2 (en) * 2012-02-09 2014-04-10 Олег Петрович Ильин Fire alarm signalling device
DE102016125490A1 (en) * 2016-12-22 2018-06-28 Bombardier Transportation Gmbh Fire alarm system for a rail vehicle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1461770A (en) * 1973-05-15 1977-01-19 Bicc Ltd Fire detection cable
GB1461769A (en) * 1973-05-15 1977-01-19 Bicc Ltd Linear temperature detectors
US4157526A (en) * 1977-02-22 1979-06-05 Davies John S Multi-stage heat sensing cable and emergency communication system
US4316179A (en) * 1980-06-11 1982-02-16 Bliss Timothy R Fire detection system
GB8603740D0 (en) * 1986-02-14 1986-03-19 P J O Ind Ltd Temperature sensing means

Also Published As

Publication number Publication date
EP0530012B1 (en) 1996-07-17
EP0530012A1 (en) 1993-03-03
DE69212256T2 (en) 1996-11-21
DE69212256D1 (en) 1996-08-22
ATE140550T1 (en) 1996-08-15

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