JPS57113338A - Method for detecting oil leakage - Google Patents

Method for detecting oil leakage

Info

Publication number
JPS57113338A
JPS57113338A JP18922380A JP18922380A JPS57113338A JP S57113338 A JPS57113338 A JP S57113338A JP 18922380 A JP18922380 A JP 18922380A JP 18922380 A JP18922380 A JP 18922380A JP S57113338 A JPS57113338 A JP S57113338A
Authority
JP
Japan
Prior art keywords
core
cable
drawn out
core wire
sag
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
JP18922380A
Other languages
Japanese (ja)
Other versions
JPS6235611B2 (en
Inventor
Ikuo Shigetoshi
Michio Takaoka
Shotaro Yoshida
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.)
Fujikura Ltd
Original Assignee
Fujikura 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 Fujikura Ltd filed Critical Fujikura Ltd
Priority to JP18922380A priority Critical patent/JPS57113338A/en
Publication of JPS57113338A publication Critical patent/JPS57113338A/en
Publication of JPS6235611B2 publication Critical patent/JPS6235611B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
    • G01M3/165—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means by means of cables or similar elongated devices, e.g. tapes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
    • G01M3/18—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Pipeline Systems (AREA)

Abstract

PURPOSE:To prevent electrolytic corrosion without need for connection work between the electrodes and the core wire by using a conductor of a carbon fiber body being exposed as electrode with the removal of the insulation layer of the core wire. CONSTITUTION:A multi-core cable 30 uses a carbon fiber body for the conductor 400 of the core 40 which is coated with an insulation layer 402. The multicore cable 30 employs a cable with a sag in which the core wires 40 are gathered by alternate inversion at a short pitch. The cable 30 thus formed is installed along an oil pipe 10 and different core wires 40 are drawn out sequentially at a given interval removing the sag. In other words, initial core wire 41 is drawn out removing the sag, one core wire 42 is drawn out at a given interval and the other core wire 43 is processed similarly. From the core wires 40 being drawn out, the insulation layer 402 is removed to expose the carbon fiber body 400, which is used for electrodes 21. One end of the multi-core cable 30 is connected to a detection unit 50.
JP18922380A 1980-12-29 1980-12-29 Method for detecting oil leakage Granted JPS57113338A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18922380A JPS57113338A (en) 1980-12-29 1980-12-29 Method for detecting oil leakage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18922380A JPS57113338A (en) 1980-12-29 1980-12-29 Method for detecting oil leakage

Publications (2)

Publication Number Publication Date
JPS57113338A true JPS57113338A (en) 1982-07-14
JPS6235611B2 JPS6235611B2 (en) 1987-08-03

Family

ID=16237628

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18922380A Granted JPS57113338A (en) 1980-12-29 1980-12-29 Method for detecting oil leakage

Country Status (1)

Country Link
JP (1) JPS57113338A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5979148A (en) * 1982-10-28 1984-05-08 Showa Electric Wire & Cable Co Ltd Leak sensor for water
JPS59120462U (en) * 1983-01-31 1984-08-14 株式会社土屋製作所 water detector
JPS59120463U (en) * 1983-01-31 1984-08-14 株式会社土屋製作所 water detector
JPS59120464U (en) * 1983-01-31 1984-08-14 株式会社土屋製作所 water detector
JPH06101399A (en) * 1992-06-15 1994-04-12 Hiroaki Yanagida Method and device for sensing water leakage
JP2013140174A (en) * 2005-12-03 2013-07-18 Tyco Thermal Controls Llc Sensor for detecting organic liquids
CN103428920A (en) * 2012-05-26 2013-12-04 河南科信电缆有限公司 Twisted multi-core carbon fiber cable

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5979148A (en) * 1982-10-28 1984-05-08 Showa Electric Wire & Cable Co Ltd Leak sensor for water
JPH0413657B2 (en) * 1982-10-28 1992-03-10 Showa Electric Wire & Cable Co
JPS59120462U (en) * 1983-01-31 1984-08-14 株式会社土屋製作所 water detector
JPS59120463U (en) * 1983-01-31 1984-08-14 株式会社土屋製作所 water detector
JPS59120464U (en) * 1983-01-31 1984-08-14 株式会社土屋製作所 water detector
JPH06101399A (en) * 1992-06-15 1994-04-12 Hiroaki Yanagida Method and device for sensing water leakage
JP2013140174A (en) * 2005-12-03 2013-07-18 Tyco Thermal Controls Llc Sensor for detecting organic liquids
CN103428920A (en) * 2012-05-26 2013-12-04 河南科信电缆有限公司 Twisted multi-core carbon fiber cable

Also Published As

Publication number Publication date
JPS6235611B2 (en) 1987-08-03

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