CA2093102A1 - Method for locating disruptions in underground electrical cable - Google Patents

Method for locating disruptions in underground electrical cable

Info

Publication number
CA2093102A1
CA2093102A1 CA002093102A CA2093102A CA2093102A1 CA 2093102 A1 CA2093102 A1 CA 2093102A1 CA 002093102 A CA002093102 A CA 002093102A CA 2093102 A CA2093102 A CA 2093102A CA 2093102 A1 CA2093102 A1 CA 2093102A1
Authority
CA
Canada
Prior art keywords
gas flow
measuring means
cable segment
locating
electrical 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.)
Granted
Application number
CA002093102A
Other languages
French (fr)
Other versions
CA2093102C (en
Inventor
Glen John Bertini
Miguel Jose Chavez
Dean Franklin Kawa
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.)
Dow Silicones Corp
Original Assignee
Dow Corning Corp
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 Dow Corning Corp filed Critical Dow Corning Corp
Publication of CA2093102A1 publication Critical patent/CA2093102A1/en
Application granted granted Critical
Publication of CA2093102C publication Critical patent/CA2093102C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2838—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for cables

Abstract

There is disclosed a relatively quick and reliable non-destructive method for locating an obstruction, leak or fault in a buried electrical cable segment and determining the extent thereof, said cable having a central stranded conductor encased in a conductor shield, the latter being surrounded by a polymeric insulation cover, said method comprising:
(I) fitting a first gas flow measuring means to said cable segment, said first measuring means being capable of monitoring the influx of a gas flow to any void space between said conductor strands and said conductor shield;
(II) fitting a second gas flow measuring means to said cable segment at some distance relative to said first gas flow measuring means, said second measuring means being capable of monitoring the efflux of said gas;
(III) introducing a gas flow to said first measuring means; and (IV) observing the relationship between the influx and efflux of said gas flow through said cable segment.
CA002093102A 1992-04-24 1993-03-31 Method for locating disruptions in underground electrical cable Expired - Lifetime CA2093102C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/873,263 US5279147A (en) 1992-04-24 1992-04-24 Method for locating disruptions in electrical cable
US07/873,263 1992-04-24

Publications (2)

Publication Number Publication Date
CA2093102A1 true CA2093102A1 (en) 1993-10-25
CA2093102C CA2093102C (en) 2004-05-11

Family

ID=25361287

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002093102A Expired - Lifetime CA2093102C (en) 1992-04-24 1993-03-31 Method for locating disruptions in underground electrical cable

Country Status (3)

Country Link
US (1) US5279147A (en)
JP (1) JPH0627179A (en)
CA (1) CA2093102C (en)

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JP3418411B2 (en) * 1991-09-06 2003-06-23 Ｓｍｃ株式会社 Vacuum unit
SE9303484D0 (en) * 1993-10-22 1993-10-22 Siemens Elema Ab Method and apparatus for measuring the flow resistance of a catheter in an implanted drug infusion system
US5438862A (en) * 1994-02-14 1995-08-08 Westinghouse Elec Corp System and method for in situ testing of the leak-tightness of a tubular member
US6112578A (en) * 1999-04-26 2000-09-05 Daimlerchrysler Corporation Multiple cavity leak test process
US6446491B1 (en) * 2000-12-22 2002-09-10 Juan Rogelio Pompa Method and apparatus for locating leaks in pipelines
WO2004001348A2 (en) * 2002-06-21 2003-12-31 Automated Control Systems, Inc. Flow testing system and method
US7107820B2 (en) * 2003-05-02 2006-09-19 Praxair S.T. Technology, Inc. Integrated gas supply and leak detection system
AU2005218559B2 (en) * 2004-03-01 2010-09-23 Novinium, Inc. Method for treating electrical cable at sustained elevated pressure
DK1744866T3 (en) * 2004-03-01 2012-09-10 Novinium Inc PROCEDURE FOR SELECTING FORMULATIONS FOR TREATMENT OF ELECTRICAL CABLES
ES2334926T3 (en) * 2004-06-04 2010-03-17 Radi Medical Systems Ab WIRE MEDICAL GUIDE WITH SENSOR.
US7353601B1 (en) 2005-08-30 2008-04-08 Novinium, Inc. Integrated method for restoring electrical power cable
US7700871B2 (en) * 2007-01-19 2010-04-20 Novinium, Inc. Acid-catalyzed dielectric enhancement fluid and cable restoration method employing same
US9336929B2 (en) * 2012-05-18 2016-05-10 Schlumberger Technology Corporation Artificial lift equipment power cables
US20170059539A1 (en) * 2013-06-14 2017-03-02 Dresser, Inc. Modular metering system
US20190101426A1 (en) * 2013-06-14 2019-04-04 Dresser, Llc Maintaining redundant data on a gas meter
US20190324005A1 (en) * 2013-06-14 2019-10-24 Natural Gas Solutions North America, Llc Modular metering system
US20200295545A1 (en) 2019-03-15 2020-09-17 Novinium, Inc. Fluid injection system with smart injection and receiver tanks
CN110174225B (en) * 2019-06-14 2021-07-27 国网上海市电力公司 Shield tunnel segment joint air tightness simulation device capable of adjusting opening angle
CN114088574B (en) * 2022-01-21 2022-05-27 国网天津市电力公司电力科学研究院 Cable core quality detection method and device

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DE228897C (en) *
US882141A (en) * 1906-06-30 1908-03-17 Troy Cope Cable insulating and testing system.
US1985348A (en) * 1931-12-30 1934-12-25 American Telephone & Telegraph Method of locating cable sheath defects
US3304546A (en) * 1964-11-16 1967-02-14 Puregas Equipment Corp Leak detector for pressurized cable
GB1129428A (en) * 1967-06-23 1968-10-02 Standard Telephones Cables Ltd Flow supervisory arrangement
DE1922986C3 (en) * 1969-05-06 1975-09-18 Erdoel-Raffinerie Mannheim Gmbh, 6800 Mannheim Procedure for monitoring leaks in liquid lines
US3695094A (en) * 1970-07-16 1972-10-03 Halliburton Co Leak detection method and system
US3690150A (en) * 1971-08-19 1972-09-12 Exxon Research Engineering Co Pipe line leak detection and location system
JPS516083A (en) * 1974-07-03 1976-01-19 Nippon Kokan Kk Ryutaino morekenchisochi
US4201079A (en) * 1974-11-01 1980-05-06 Mark Telephone Products, Inc. Remote flow transducer for communication cable
JPS6027372B2 (en) * 1979-06-11 1985-06-28 工業技術院長 Pipeline leak location estimation device
EP0188911A3 (en) * 1984-12-25 1987-09-16 Nippon Kokan Kabushiki Kaisha Method and apparatus for detecting leaks in a gas pipe line
US5082449A (en) * 1990-08-28 1992-01-21 Amerace Corporation Removable media injection fitting

Also Published As

Publication number Publication date
US5279147A (en) 1994-01-18
JPH0627179A (en) 1994-02-04
CA2093102C (en) 2004-05-11

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