IT8667680A0 - Procedimento di rilevazione del l usura di una linea immersa in un mezzo conduttore e racchiudente una condotta od un cavo elettrico - Google Patents

Procedimento di rilevazione del l usura di una linea immersa in un mezzo conduttore e racchiudente una condotta od un cavo elettrico

Info

Publication number
IT8667680A0
IT8667680A0 IT8667680A IT6768086A IT8667680A0 IT 8667680 A0 IT8667680 A0 IT 8667680A0 IT 8667680 A IT8667680 A IT 8667680A IT 6768086 A IT6768086 A IT 6768086A IT 8667680 A0 IT8667680 A0 IT 8667680A0
Authority
IT
Italy
Prior art keywords
enclosing
conduit
wear
procedure
detection
Prior art date
Application number
IT8667680A
Other languages
English (en)
Other versions
IT1215186B (it
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 IT8667680A0 publication Critical patent/IT8667680A0/it
Application granted granted Critical
Publication of IT1215186B publication Critical patent/IT1215186B/it

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)
IT8667680A 1985-08-30 1986-08-29 Procedimento di rilevazione del l usura di una linea immersa in un mezzo conduttore e racchiudente una condotta od un cavo elettrico IT1215186B (it)

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
IT8667680A0 true IT8667680A0 (it) 1986-08-29
IT1215186B IT1215186B (it) 1990-01-31

Family

ID=9322494

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8667680A IT1215186B (it) 1985-08-30 1986-08-29 Procedimento di rilevazione del l usura di una linea immersa in un mezzo conduttore e racchiudente una condotta od un cavo elettrico

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
KR970705890A (ko) * 1994-12-15 1997-10-09 에버세드 마이클 통신망의 회선 점검 방법 및 장치(a method and apparatus for testing lines in a telecommunications network)
AU702194B2 (en) * 1995-11-20 1999-02-18 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
EP2476211B1 (en) 2009-09-11 2016-04-20 Telefonaktiebolaget LM Ericsson (publ) A 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
IT1215186B (it) 1990-01-31
FR2586818A1 (fr) 1987-03-06
GB2180073A (en) 1987-03-18
GB2180073B (en) 1989-01-25
FR2586818B1 (fr) 1987-11-27
BR8604127A (pt) 1987-04-22
NO863232L (no) 1987-03-02
NO863232D0 (no) 1986-08-11
GB8619821D0 (en) 1986-09-24

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