GB1462383A - Electrical safety device - Google Patents

Electrical safety device

Info

Publication number
GB1462383A
GB1462383A GB1650673A GB1650673A GB1462383A GB 1462383 A GB1462383 A GB 1462383A GB 1650673 A GB1650673 A GB 1650673A GB 1650673 A GB1650673 A GB 1650673A GB 1462383 A GB1462383 A GB 1462383A
Authority
GB
United Kingdom
Prior art keywords
prongs
safety device
terminals
plug
lamp
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
GB1650673A
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.)
GOH KEN LIN
Original Assignee
GOH KEN LIN
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 GOH KEN LIN filed Critical GOH KEN LIN
Priority to GB1650673A priority Critical patent/GB1462383A/en
Publication of GB1462383A publication Critical patent/GB1462383A/en
Priority to GB2471978A priority patent/GB1597040A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H01R13/713—Structural association with built-in electrical component with built-in switch the switch being a safety switch
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
    • H02H11/001—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of incorrect or interrupted earth connection
    • 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
    • H02H3/16—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 fault current to earth, frame or mass
    • H02H3/17—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 fault current to earth, frame or mass by means of an auxiliary voltage injected into the installation to be protected

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

1462383 Electric protection systems GOH KEN LIN 3 June 1974 [6 April 1973] 16506/73 Headings H2K and H2E A safety device for the supply to electric apparatus 19 has multi-terminal inlet and outlets to 10 and 16 between which is connected a circuit which is responsive to changes in conductivity between earth and monitor terminals (prongs E and C of plug 17) to actuate a switch circuit including contacts K2/2 arranged to disconnect inlet and outlet current carrying terminals of the line L under this condition. A buzzer 20 and lamp 32 are also energized. The safety device may be by-passed by operation of a switch 33 which also controls a lamp 34. Fig. 1 shows a socket for receiving live and neutral prongs and the E and C prongs of a plug (Fig. 3, not shown) with insulation or an air gap between the E and C prongs which enter a single aperture to contact E and C terminals having insulator I, therebetween. Alternatively a four pin and socket arrangement (Figs. 2 and 4, not shown) may be used.
GB1650673A 1973-04-06 1973-04-06 Electrical safety device Expired GB1462383A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1650673A GB1462383A (en) 1973-04-06 1973-04-06 Electrical safety device
GB2471978A GB1597040A (en) 1973-04-06 1978-05-31 Safety device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1650673A GB1462383A (en) 1973-04-06 1973-04-06 Electrical safety device

Publications (1)

Publication Number Publication Date
GB1462383A true GB1462383A (en) 1977-01-26

Family

ID=10078579

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1650673A Expired GB1462383A (en) 1973-04-06 1973-04-06 Electrical safety device

Country Status (1)

Country Link
GB (1) GB1462383A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0000846A1 (en) * 1977-08-11 1979-02-21 British Gas Corporation Electrical protection device for checking the earth connection
US4415944A (en) * 1977-06-23 1983-11-15 The Boots Company Plc Electrical apparatus
EP0221672A2 (en) * 1985-10-02 1987-05-13 Ranton & Company Limited Electrical accessories

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4415944A (en) * 1977-06-23 1983-11-15 The Boots Company Plc Electrical apparatus
EP0000846A1 (en) * 1977-08-11 1979-02-21 British Gas Corporation Electrical protection device for checking the earth connection
EP0221672A2 (en) * 1985-10-02 1987-05-13 Ranton & Company Limited Electrical accessories
GB2183109A (en) * 1985-10-02 1987-05-28 Ranton & Co Ltd Electrical accessories
EP0221672A3 (en) * 1985-10-02 1988-09-14 Ranton & Company Limited Electrical accessories

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Legal Events

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