GB1015983A - Improvements relating to safety apparatus - Google Patents

Improvements relating to safety apparatus

Info

Publication number
GB1015983A
GB1015983A GB1197/61A GB119761A GB1015983A GB 1015983 A GB1015983 A GB 1015983A GB 1197/61 A GB1197/61 A GB 1197/61A GB 119761 A GB119761 A GB 119761A GB 1015983 A GB1015983 A GB 1015983A
Authority
GB
United Kingdom
Prior art keywords
danger
devices
output
alarm
pair
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
Application number
GB1197/61A
Inventor
James Sherlock
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries 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 Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Priority to GB1197/61A priority Critical patent/GB1015983A/en
Priority to FR884501A priority patent/FR1312251A/en
Publication of GB1015983A publication Critical patent/GB1015983A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C7/00—Control of nuclear reaction
    • G21C7/36—Control circuits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

1,015,983. Alarm systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 11, 1962 [Jan. 11, 1961], No. 1197/61. Heading G4N. Safety apparatus, particularly for nuclear reactors, comprises a plurality of pairs a, b of test devices located at different test points in the plant and adapted to be connected successively over a line A, B to a comparator and to a combining unit. The devices of each pair are located together in a common zone so that they are responsive to the same conditions, e.g. temperature. Should the outputs from the test devices of any pair differ appreciably, due, e.g. to a fault in one of them, the comparator unit produces an output to operate a "warning" alarm 2 but if the outputs of both devices of a pair correspond to " danger " the combining unit output exceeds a predetermined value and operates a " danger " alarm 1. The various test points are connected to the line successively by pairs of gates GIA-GIB, G2A-G2B &c. The test devices may give an output signal only when danger conditions arise or they may normally give an output which is interrupted if danger conditions arise.
GB1197/61A 1961-01-11 1961-01-11 Improvements relating to safety apparatus Expired GB1015983A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1197/61A GB1015983A (en) 1961-01-11 1961-01-11 Improvements relating to safety apparatus
FR884501A FR1312251A (en) 1961-01-11 1962-01-11 Security devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1197/61A GB1015983A (en) 1961-01-11 1961-01-11 Improvements relating to safety apparatus

Publications (1)

Publication Number Publication Date
GB1015983A true GB1015983A (en) 1966-01-05

Family

ID=9717853

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1197/61A Expired GB1015983A (en) 1961-01-11 1961-01-11 Improvements relating to safety apparatus

Country Status (1)

Country Link
GB (1) GB1015983A (en)

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