JPS56106208A - Monitoring device for electric power cable - Google Patents

Monitoring device for electric power cable

Info

Publication number
JPS56106208A
JPS56106208A JP832580A JP832580A JPS56106208A JP S56106208 A JPS56106208 A JP S56106208A JP 832580 A JP832580 A JP 832580A JP 832580 A JP832580 A JP 832580A JP S56106208 A JPS56106208 A JP S56106208A
Authority
JP
Japan
Prior art keywords
cable
light
electric power
fiber
power cable
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.)
Pending
Application number
JP832580A
Other languages
Japanese (ja)
Inventor
Akito Watanabe
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP832580A priority Critical patent/JPS56106208A/en
Publication of JPS56106208A publication Critical patent/JPS56106208A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks

Landscapes

  • Light Guides In General And Applications Therefor (AREA)

Abstract

PURPOSE:To detect the accident of a cable easily by inserting an optical fiber along the external circumference of the cable and by monitoring its light conduction state. CONSTITUTION:Along the external circumference of the conductor of electric power cable 5, optical fiber 6 is inserted and to its one terminal, a light signal from electricity-light converter 7 is supplied. This light propagates in fiber 6 and is converted into an electric signal by light-electricity converter 12 provided at the other terminal to turn on a monitoring display lamp. If electric power cable 5 runs into a ground- fault accident, etc., its current breaks the insulator of the cable and the breaking of the fiber is caused eventually. As a result, the light transmission of fiber 6 is excluded and display lamp 10 turns off. Thus, the accident of cable 5 can easily be detected.
JP832580A 1980-01-29 1980-01-29 Monitoring device for electric power cable Pending JPS56106208A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP832580A JPS56106208A (en) 1980-01-29 1980-01-29 Monitoring device for electric power cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP832580A JPS56106208A (en) 1980-01-29 1980-01-29 Monitoring device for electric power cable

Publications (1)

Publication Number Publication Date
JPS56106208A true JPS56106208A (en) 1981-08-24

Family

ID=11690018

Family Applications (1)

Application Number Title Priority Date Filing Date
JP832580A Pending JPS56106208A (en) 1980-01-29 1980-01-29 Monitoring device for electric power cable

Country Status (1)

Country Link
JP (1) JPS56106208A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0203249A2 (en) * 1985-05-25 1986-12-03 Felten & Guilleaume Energietechnik AG Power cable, especially for tensions of 6 to 60 kV, incorporating light conductors
EP1999761A1 (en) * 2006-03-24 2008-12-10 Korea Electrotechnology Research Institute Power cable capable of detecting failure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0203249A2 (en) * 1985-05-25 1986-12-03 Felten & Guilleaume Energietechnik AG Power cable, especially for tensions of 6 to 60 kV, incorporating light conductors
EP1999761A1 (en) * 2006-03-24 2008-12-10 Korea Electrotechnology Research Institute Power cable capable of detecting failure
EP1999761A4 (en) * 2006-03-24 2012-08-29 Korea Electrotech Res Inst Power cable capable of detecting failure

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