JPS55101063A - Detecting method for defect part of power cable - Google Patents

Detecting method for defect part of power cable

Info

Publication number
JPS55101063A
JPS55101063A JP15927578A JP15927578A JPS55101063A JP S55101063 A JPS55101063 A JP S55101063A JP 15927578 A JP15927578 A JP 15927578A JP 15927578 A JP15927578 A JP 15927578A JP S55101063 A JPS55101063 A JP S55101063A
Authority
JP
Japan
Prior art keywords
cable
voltage
defect
conductive
conductive glass
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.)
Granted
Application number
JP15927578A
Other languages
Japanese (ja)
Other versions
JPS5833505B2 (en
Inventor
Yoshihisa Asada
Teruo Fukuda
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.)
Furukawa Electric Co Ltd
Original Assignee
Furukawa 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 Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Priority to JP53159275A priority Critical patent/JPS5833505B2/en
Publication of JPS55101063A publication Critical patent/JPS55101063A/en
Publication of JPS5833505B2 publication Critical patent/JPS5833505B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Testing Relating To Insulation (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)

Abstract

PURPOSE: To detect a defect before coating rapidly and securely by measuring the intensity of light discharged from a defect part by applying an AC voltage to a cable.
CONSTITUTION: While AC power supply 2 is connected to power cable 1 composed of conductor 11 and insulating layer 7 around it to apply an AC voltage, cable 1 is moved in conductive glass 3. If there wound be a defective part such as the void or internal conductive projection in cable 1, discharge light from the defective part is transmitted through conductive glass 3 and optical fiber 4. The transmitted discharge light is amplified by photo amplifier 5 and recorded by recorder 6. The defect in cable 1 can be detected by measuring light intensity by this recorder 6. Conductive glass 3 is used as an earth electrode and a voltage is applied to cable 1 only in the section where conductive galss 3 is installed.
COPYRIGHT: (C)1980,JPO&Japio
JP53159275A 1978-12-26 1978-12-26 How to detect defects in power cables Expired JPS5833505B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53159275A JPS5833505B2 (en) 1978-12-26 1978-12-26 How to detect defects in power cables

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53159275A JPS5833505B2 (en) 1978-12-26 1978-12-26 How to detect defects in power cables

Publications (2)

Publication Number Publication Date
JPS55101063A true JPS55101063A (en) 1980-08-01
JPS5833505B2 JPS5833505B2 (en) 1983-07-20

Family

ID=15690214

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53159275A Expired JPS5833505B2 (en) 1978-12-26 1978-12-26 How to detect defects in power cables

Country Status (1)

Country Link
JP (1) JPS5833505B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0510913A (en) * 1991-07-04 1993-01-19 Otsuka Pharmaceut Factory Inc Apparatus for inspecting defective sealing between independent chambers of double-chamber container
KR20020043340A (en) * 2000-12-02 2002-06-10 최영자 coted wire inspection apparatus having high voltage supplying type
WO2003091743A1 (en) * 2002-04-26 2003-11-06 Kabushiki Kaisha Toshiba Method for diagnosing deterioration of coil and system for diagnosing deterioration of coil

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52110678A (en) * 1976-03-15 1977-09-16 Fuji Electric Co Ltd Troubled point detector of gaseous insulators

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52110678A (en) * 1976-03-15 1977-09-16 Fuji Electric Co Ltd Troubled point detector of gaseous insulators

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0510913A (en) * 1991-07-04 1993-01-19 Otsuka Pharmaceut Factory Inc Apparatus for inspecting defective sealing between independent chambers of double-chamber container
KR20020043340A (en) * 2000-12-02 2002-06-10 최영자 coted wire inspection apparatus having high voltage supplying type
WO2003091743A1 (en) * 2002-04-26 2003-11-06 Kabushiki Kaisha Toshiba Method for diagnosing deterioration of coil and system for diagnosing deterioration of coil

Also Published As

Publication number Publication date
JPS5833505B2 (en) 1983-07-20

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