NO863232L - Fremgangsmaate for aa detektere slitasje paa en line som er neddykket i et ledende medium og omfatter en foering eller en elektrisk kabel. - Google Patents

Fremgangsmaate for aa detektere slitasje paa en line som er neddykket i et ledende medium og omfatter en foering eller en elektrisk kabel.

Info

Publication number
NO863232L
NO863232L NO863232A NO863232A NO863232L NO 863232 L NO863232 L NO 863232L NO 863232 A NO863232 A NO 863232A NO 863232 A NO863232 A NO 863232A NO 863232 L NO863232 L NO 863232L
Authority
NO
Norway
Prior art keywords
line
impedance
apparent impedance
wear
measured
Prior art date
Application number
NO863232A
Other languages
English (en)
Norwegian (no)
Other versions
NO863232D0 (no
Inventor
Christian Babin
Francois Marie Robert
Original Assignee
Elf Aquitaine
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 Elf Aquitaine filed Critical Elf Aquitaine
Publication of NO863232D0 publication Critical patent/NO863232D0/no
Publication of NO863232L publication Critical patent/NO863232L/no

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/16—Measuring impedance of element or network through which a current is passing from another source, e.g. cable, power line
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Insulated Conductors (AREA)
  • Communication Cables (AREA)
NO863232A 1985-08-30 1986-08-11 Fremgangsmaate for aa detektere slitasje paa en line som er neddykket i et ledende medium og omfatter en foering eller en elektrisk kabel. NO863232L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8512921A FR2586818B1 (fr) 1985-08-30 1985-08-30 Procede de detection d'usure d'une ligne immergee dans un milieu conducteur et renfermant une conduite ou un cable electrique

Publications (2)

Publication Number Publication Date
NO863232D0 NO863232D0 (no) 1986-08-11
NO863232L true NO863232L (no) 1987-03-02

Family

ID=9322494

Family Applications (1)

Application Number Title Priority Date Filing Date
NO863232A NO863232L (no) 1985-08-30 1986-08-11 Fremgangsmaate for aa detektere slitasje paa en line som er neddykket i et ledende medium og omfatter en foering eller en elektrisk kabel.

Country Status (5)

Country Link
BR (1) BR8604127A (it)
FR (1) FR2586818B1 (it)
GB (1) GB2180073B (it)
IT (1) IT1215186B (it)
NO (1) NO863232L (it)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5699402A (en) * 1994-09-26 1997-12-16 Teradyne, Inc. Method and apparatus for fault segmentation in a telephone network
EP0797889B1 (en) * 1994-12-15 2002-09-18 BRITISH TELECOMMUNICATIONS public limited company A method and apparatus for testing lines in a telecommunications network
WO1997019544A1 (en) * 1995-11-20 1997-05-29 British Telecommunications Public Limited Company Fault management system for a telecommunications network
WO2009131501A1 (en) * 2008-04-23 2009-10-29 Telefonaktiebolaget L M Ericsson (Publ) Method for transmission line analysis
US8781078B2 (en) 2009-09-11 2014-07-15 Telefonaktiebolaget L M Ericsson (Publ) Method for estimating transmission properties of a telecommunications transmission line

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3792350A (en) * 1972-03-15 1974-02-12 Bell Telephone Labor Inc Detection of metalshield faults in buried cable
DE2247746C3 (de) * 1972-09-29 1975-11-27 Siemens Ag, 1000 Berlin Und 8000 Muenchen Verfahren zum Messen einer Leitungsimpedanz
US3991363A (en) * 1975-08-11 1976-11-09 Bell Telephone Laboratories, Incorporated Method and apparatus for detecting faults in buried insulated conductors
GB2082406B (en) * 1980-04-22 1984-06-13 Domenco Wayne David Monitoring electrical cables and joints for the ingress of moisture
SE433405B (sv) * 1982-09-14 1984-05-21 Asea Ab Forfarande och anordning for lokalisering av ett felstelle pa en trefasig kraftledning

Also Published As

Publication number Publication date
FR2586818A1 (fr) 1987-03-06
GB8619821D0 (en) 1986-09-24
GB2180073A (en) 1987-03-18
BR8604127A (pt) 1987-04-22
GB2180073B (en) 1989-01-25
IT1215186B (it) 1990-01-31
FR2586818B1 (fr) 1987-11-27
IT8667680A0 (it) 1986-08-29
NO863232D0 (no) 1986-08-11

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