GB2237461B - Monitoring faults in electrical circuit arrangements - Google Patents

Monitoring faults in electrical circuit arrangements

Info

Publication number
GB2237461B
GB2237461B GB8922685A GB8922685A GB2237461B GB 2237461 B GB2237461 B GB 2237461B GB 8922685 A GB8922685 A GB 8922685A GB 8922685 A GB8922685 A GB 8922685A GB 2237461 B GB2237461 B GB 2237461B
Authority
GB
United Kingdom
Prior art keywords
electrical circuit
circuit arrangements
monitoring faults
faults
monitoring
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.)
Expired - Fee Related
Application number
GB8922685A
Other versions
GB2237461A (en
GB8922685D0 (en
Inventor
John George Hampson
David Brown
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.)
Cooper Security Ltd
Original Assignee
Scantronic 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 Scantronic Ltd filed Critical Scantronic Ltd
Priority to GB8922685A priority Critical patent/GB2237461B/en
Publication of GB8922685D0 publication Critical patent/GB8922685D0/en
Publication of GB2237461A publication Critical patent/GB2237461A/en
Application granted granted Critical
Publication of GB2237461B publication Critical patent/GB2237461B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
    • G01R31/2829—Testing of circuits in sensor or actuator systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • 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)
  • Electromagnetism (AREA)
  • General Engineering & Computer Science (AREA)
  • Alarm Systems (AREA)
  • Fire Alarms (AREA)
GB8922685A 1989-10-09 1989-10-09 Monitoring faults in electrical circuit arrangements Expired - Fee Related GB2237461B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8922685A GB2237461B (en) 1989-10-09 1989-10-09 Monitoring faults in electrical circuit arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8922685A GB2237461B (en) 1989-10-09 1989-10-09 Monitoring faults in electrical circuit arrangements

Publications (3)

Publication Number Publication Date
GB8922685D0 GB8922685D0 (en) 1989-11-22
GB2237461A GB2237461A (en) 1991-05-01
GB2237461B true GB2237461B (en) 1993-12-08

Family

ID=10664263

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8922685A Expired - Fee Related GB2237461B (en) 1989-10-09 1989-10-09 Monitoring faults in electrical circuit arrangements

Country Status (1)

Country Link
GB (1) GB2237461B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9108421D0 (en) * 1991-04-19 1991-06-05 Fulleon Ltd Alarm system
FR2760274B1 (en) * 1997-02-28 1999-05-07 Souchier Sa DEVICE FOR CONTROLLING AN ELECTRIC LINE SUPPLYING IN PARTICULAR ELECTRIC CYLINDERS OF FIRE SAFETY SYSTEMS
FR2790130B1 (en) * 1999-02-19 2001-10-05 Automatismes Sicli DETECTION DEVICE AND ITS IMPLEMENTING METHOD

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB910920A (en) * 1960-06-21 1962-11-21 Pyrene Co Ltd Improvements in or relating to fire-detection circuits
GB1347306A (en) * 1970-09-28 1974-02-27 Gen Signal Corp Fire detector
GB2054228A (en) * 1979-06-13 1981-02-11 Bofors Ab Monitoring circuit in a sprinkler system
GB2087573A (en) * 1980-11-17 1982-05-26 Gec General Signal Ltd Line signal fault detection system
GB2134680A (en) * 1983-02-02 1984-08-15 Sound Diffusion Plc Monitored line alarm systems

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB910920A (en) * 1960-06-21 1962-11-21 Pyrene Co Ltd Improvements in or relating to fire-detection circuits
GB1347306A (en) * 1970-09-28 1974-02-27 Gen Signal Corp Fire detector
GB2054228A (en) * 1979-06-13 1981-02-11 Bofors Ab Monitoring circuit in a sprinkler system
GB2087573A (en) * 1980-11-17 1982-05-26 Gec General Signal Ltd Line signal fault detection system
GB2134680A (en) * 1983-02-02 1984-08-15 Sound Diffusion Plc Monitored line alarm systems

Also Published As

Publication number Publication date
GB2237461A (en) 1991-05-01
GB8922685D0 (en) 1989-11-22

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20051009