FR2358903A1 - Multiple unit fire protection system - operates units in sequence including resetting of switching operations in reversed order - Google Patents

Multiple unit fire protection system - operates units in sequence including resetting of switching operations in reversed order

Info

Publication number
FR2358903A1
FR2358903A1 FR7639748A FR7639748A FR2358903A1 FR 2358903 A1 FR2358903 A1 FR 2358903A1 FR 7639748 A FR7639748 A FR 7639748A FR 7639748 A FR7639748 A FR 7639748A FR 2358903 A1 FR2358903 A1 FR 2358903A1
Authority
FR
France
Prior art keywords
fire protection
units
operates
resetting
protection system
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Withdrawn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
FR7639748A
Other languages
French (fr)
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.)
Nohmi Bosai Ltd
Original Assignee
Nohmi Bosai Kogyo Co 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 Nohmi Bosai Kogyo Co Ltd filed Critical Nohmi Bosai Kogyo Co Ltd
Publication of FR2358903A1 publication Critical patent/FR2358903A1/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Withdrawn legal-status Critical Current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
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment

Abstract

The circuit of the fire protection installation is designed to operate a number of units in sequence using a relatively small power source. After the fire the installation is remotely reset into the original operating condition. The resetting is achieved by reversing the voltage polarity of the system. The system consists of a number of fire protection units (1, 2 ... n) controlled by corresponding fire detection elements (D1...). Each unit works together with actuating elements containing an electromagnetic trigger assembly, which releases the actuating elements when fed with a voltage of a predetermined polarity. The operation is sequential in such a manner that initially fire protection unit (1) is actuated. The operation is extended to subsequent units via time element (T) by switching gear (a). The system is fitted with a switch (X), which by reversing the voltage polarity achieves the resetting of all actuating elements into their previous operating condition.
FR7639748A 1976-07-23 1976-12-31 Multiple unit fire protection system - operates units in sequence including resetting of switching operations in reversed order Withdrawn FR2358903A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762633103 DE2633103A1 (en) 1976-07-23 1976-07-23 FIRE PROTECTION SYSTEM

Publications (1)

Publication Number Publication Date
FR2358903A1 true FR2358903A1 (en) 1978-02-17

Family

ID=5983722

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7639748A Withdrawn FR2358903A1 (en) 1976-07-23 1976-12-31 Multiple unit fire protection system - operates units in sequence including resetting of switching operations in reversed order

Country Status (2)

Country Link
DE (1) DE2633103A1 (en)
FR (1) FR2358903A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2800897A1 (en) * 1999-11-08 2001-05-11 Madicob Fire security installation detector state system having secondary luminous warning outputs connected to the analysis detectors and ahead switch reset shunt line corresponding
GB2491903A (en) * 2011-06-18 2012-12-19 Custom Electronics Ltd Interface circuit for use with a smoke and heat evacuation and ventilation (SHEV) device
CN112634567A (en) * 2020-12-17 2021-04-09 深圳市金安宏安全技术咨询有限公司 Fire alarm method and device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5350019A (en) * 1986-09-05 1994-09-27 Nohmi Bosai Kogyo Kabushiki Kaisha Fire protection system
DE19711063A1 (en) * 1997-03-17 1998-09-24 Schako Metallwarenfabrik Monitoring and controlling elements of air-conditioning technology
EP0866283A3 (en) * 1997-03-17 2000-04-26 Schako Metallwarenfabrik Ferdinand Schad KG Device for monitoring and controlling climatisation elements

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3825766A (en) * 1973-07-11 1974-07-23 Fike Metal Prod Corp Electrical control apparatus
US3846641A (en) * 1972-09-22 1974-11-05 Hochiki Co Control system for a plurality of loads

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3846641A (en) * 1972-09-22 1974-11-05 Hochiki Co Control system for a plurality of loads
US3825766A (en) * 1973-07-11 1974-07-23 Fike Metal Prod Corp Electrical control apparatus

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2800897A1 (en) * 1999-11-08 2001-05-11 Madicob Fire security installation detector state system having secondary luminous warning outputs connected to the analysis detectors and ahead switch reset shunt line corresponding
GB2491903A (en) * 2011-06-18 2012-12-19 Custom Electronics Ltd Interface circuit for use with a smoke and heat evacuation and ventilation (SHEV) device
GB2504875A (en) * 2011-06-18 2014-02-12 Custom Electronics Ltd Method of controlling a plurality of smoke and heat evacuation and ventilation (SHEV) devices
GB2504876A (en) * 2011-06-18 2014-02-12 Custom Electronics Ltd Controller for a plurality of smoke and heat evacuation and ventilation (SHEV) devices
GB2491903B (en) * 2011-06-18 2014-07-16 Custom Electronics Ltd Controlling smoke and heat evacuation and ventilation devices
GB2504875B (en) * 2011-06-18 2014-07-16 Custom Electronics Ltd Controlling smoke and heat evacuation and ventilation devices
GB2504876B (en) * 2011-06-18 2014-07-16 Custom Electronics Ltd A controller for smoke and heat evacuation and ventilation devices
CN112634567A (en) * 2020-12-17 2021-04-09 深圳市金安宏安全技术咨询有限公司 Fire alarm method and device
CN112634567B (en) * 2020-12-17 2024-01-30 深圳市金安宏安全技术咨询有限公司 Fire alarm method and device

Also Published As

Publication number Publication date
DE2633103A1 (en) 1978-01-26

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Legal Events

Date Code Title Description
ST Notification of lapse