GB201002853D0 - Ambience detection units and electrical fittings including such units - Google Patents

Ambience detection units and electrical fittings including such units

Info

Publication number
GB201002853D0
GB201002853D0 GBGB1002853.8A GB201002853A GB201002853D0 GB 201002853 D0 GB201002853 D0 GB 201002853D0 GB 201002853 A GB201002853 A GB 201002853A GB 201002853 D0 GB201002853 D0 GB 201002853D0
Authority
GB
United Kingdom
Prior art keywords
units
ambience
electrical fittings
fittings including
detection units
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Withdrawn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
GBGB1002853.8A
Other versions
GB2477954A (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.)
Haven Ltd
Original Assignee
Haven 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 Haven Ltd filed Critical Haven Ltd
Priority to GB1002853A priority Critical patent/GB2477954A/en
Publication of GB201002853D0 publication Critical patent/GB201002853D0/en
Publication of GB2477954A publication Critical patent/GB2477954A/en
Withdrawn legal-status Critical Current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
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons
    • G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
    • G08B21/16—Combustible gas alarms
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/33—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
    • H02H3/334—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers with means to produce an artificial unbalance for other protection or monitoring reasons or remote control

Landscapes

  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Emergency Management (AREA)
  • Combustion & Propulsion (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Power Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Emergency Alarm Devices (AREA)
GB1002853A 2010-02-19 2010-02-19 Explosive gas detection unit and electrical fitting including such a unit Withdrawn GB2477954A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1002853A GB2477954A (en) 2010-02-19 2010-02-19 Explosive gas detection unit and electrical fitting including such a unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1002853A GB2477954A (en) 2010-02-19 2010-02-19 Explosive gas detection unit and electrical fitting including such a unit

Publications (2)

Publication Number Publication Date
GB201002853D0 true GB201002853D0 (en) 2010-04-07
GB2477954A GB2477954A (en) 2011-08-24

Family

ID=42114085

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1002853A Withdrawn GB2477954A (en) 2010-02-19 2010-02-19 Explosive gas detection unit and electrical fitting including such a unit

Country Status (1)

Country Link
GB (1) GB2477954A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111899480A (en) * 2020-08-11 2020-11-06 安徽泽众安全科技有限公司 Underground space combustible gas monitoring dynamic early warning classification method and system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES1078439Y (en) * 2012-12-28 2013-04-22 Guiu Eduard Josep Jordi Bages SECURITY DEVICE FOR GAS DETECTION
ES2570652B1 (en) * 2014-11-17 2017-03-10 Antonio Esteban FRADES SÁNCHEZ Fuel gas leak detector with immediate disconnection of electric current
CN104680730A (en) * 2015-03-20 2015-06-03 苏州首旗信息科技有限公司 Intelligent leakage detection system for combustible gas
CN110738816A (en) * 2019-09-14 2020-01-31 杭州拓深科技有限公司 electric fire early warning method based on current characteristic change

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3636502A1 (en) * 1986-10-27 1988-04-28 Gaertner Paul Dipl Kaufm PROTECTIVE DEVICE AGAINST GAS EXPLOSIONS IN LIVING ROOMS
DK173739B1 (en) * 1993-03-15 2001-08-27 Egon Geertsen Safety circuit breaker
FI105861B (en) * 1998-04-06 2000-10-13 Antti Kaarnamo A method of disconnecting the power supply to the grid in the event of an emergency and a corresponding security arrangement
DE19820613A1 (en) * 1998-05-08 1999-11-11 Hans Tillmann Safety device for monitoring explosive area e.g. for detecting dangerous gases in boiler room
US7187529B2 (en) * 2003-04-30 2007-03-06 Eaton Corporation Apparatus and method for detecting a gas associated with a glowing contact and interrupting a power circuit
GB2438252A (en) * 2005-10-01 2007-11-21 Philip Marson Fire alarm isolates power circuits
FI20065263A (en) * 2006-04-25 2007-10-26 Innohome Oy A system for controlling the supply of electricity, water or gas
GB0718911D0 (en) * 2007-09-28 2007-11-07 Chilvers Graham Power isolator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111899480A (en) * 2020-08-11 2020-11-06 安徽泽众安全科技有限公司 Underground space combustible gas monitoring dynamic early warning classification method and system

Also Published As

Publication number Publication date
GB2477954A (en) 2011-08-24

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Legal Events

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