EP0848389A2 - Identification de câbles - Google Patents

Identification de câbles Download PDF

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Publication number
EP0848389A2
EP0848389A2 EP97402574A EP97402574A EP0848389A2 EP 0848389 A2 EP0848389 A2 EP 0848389A2 EP 97402574 A EP97402574 A EP 97402574A EP 97402574 A EP97402574 A EP 97402574A EP 0848389 A2 EP0848389 A2 EP 0848389A2
Authority
EP
European Patent Office
Prior art keywords
elements
primary
cable
core
filler
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.)
Ceased
Application number
EP97402574A
Other languages
German (de)
English (en)
Other versions
EP0848389A3 (fr
Inventor
Knut Berg
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.)
Nexans SA
Original Assignee
Alcatel SA
Alcatel Alsthom Compagnie Generale dElectricite
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 Alcatel SA, Alcatel Alsthom Compagnie Generale dElectricite filed Critical Alcatel SA
Publication of EP0848389A2 publication Critical patent/EP0848389A2/fr
Publication of EP0848389A3 publication Critical patent/EP0848389A3/fr
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/36—Insulated conductors or cables characterised by their form with distinguishing or length marks
    • H01B7/366—Insulated conductors or cables characterised by their form with distinguishing or length marks being a tape, thread or wire extending the full length of the conductor or cable

Definitions

  • the present invention relates to cables including at least three primary elongated elements and a number of secondary elongated elements.
  • the invention relates in particular to 3-core power cables in the voltage range up to 60 kV, - where the cores and filler elements are enclosed within a common outer cover or sheaths.
  • the common existing methods for core identification are by means of a) direct marking with inks, or b) marking with engraved - or embossed - characters on the insulation screen. These methods have certain deficiencies. Marking with ink may have detrimental effects related to water treeing, - whereas marking with engraved - or embossed - characters requires a thicker insulation screen layer.
  • the object of the present invention is to provide a unique core identification which effects neither the electrical nor the mechanical properties of the cable.
  • the features of the invention are defined in the claims.
  • the basic idea is that at least one of the primary elements - cable cores - should be identifiable by coding of neighboring or adjacent secondary elements - filler elements.
  • the coded secondary elements are usually arranged in interstices between the primary elements.
  • the primary elements can then be substantially identical in crossection and surface configuration.
  • the filler elements are colour coded. There are however also other methods for coding the filler elements.
  • the core identification maybe obtained by using three different filler colors and any one of the cores is therefore uniquely identified by its adjacent fillers.
  • An advantage of the invention is that the core insulation is mechanically and chemically unaffected. Another advantage is that no special tools are required for making the products.
  • each conductor being 150 sq.mm.
  • the cable has three conductors 1, 1A and 1B, each with a conductor screen 2, insulation layers 3 and an insulation screen 4. The appearance of these three conductor cores is identical.
  • the cable has at least two filler elements 5 and 5A which are distinguishable from each other by colors, by imprints, by different materials or by different configuration.
  • outer covers and sheaths such as a semiconductive tape 6, a copper wire screen 7, a tape winding 8 and an outer sheath 10.
  • the cable core 1 may be identified by these two neighbor elements - or adjacent fillers -if you look at either end of the cable. It also appears that the cable core 1A can be identified from either end of the cable by 'counting': red filler - cable core - green filler - core 1A. Similarly the core 1B can be identified from either side by 'counting': green filler - cable core - red filler - core 1B.
  • Core 1 is the one adjacent to fillers 5 (red) and 5A (green)
  • - core 1A is the one adjacent to fillers 5A (green) and 5B (yellow)
  • - whereas the core 1B is the one adjacent to the yellow and red fillers.
  • the cores 1A, 1B and 1C can be optical fiber elements, e.g. loose or tight buffered fibers, metal or plastic tubes containing optical fiber ribbons or slotted core elements containing optical fibers and/or optical fiber ribbons in its grooves.
  • the coloured fillers 5 can be used as an additional marking element for such fibers and/or each group of fibers which have already a first marking.

Landscapes

  • Insulated Conductors (AREA)
EP97402574A 1996-12-09 1997-10-30 Identification de câbles Ceased EP0848389A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO965245 1996-12-09
NO965245A NO303756B1 (no) 1996-12-09 1996-12-09 Kabel

Publications (2)

Publication Number Publication Date
EP0848389A2 true EP0848389A2 (fr) 1998-06-17
EP0848389A3 EP0848389A3 (fr) 1999-01-13

Family

ID=19900158

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97402574A Ceased EP0848389A3 (fr) 1996-12-09 1997-10-30 Identification de câbles

Country Status (3)

Country Link
EP (1) EP0848389A3 (fr)
IS (1) IS4624A (fr)
NO (1) NO303756B1 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB355908A (en) * 1930-07-26 1931-09-03 Callenders Cable & Const Co Improvements in connection with multicore electric cables
GB9224178D0 (en) * 1992-11-18 1993-01-06 Male John Structured wiring looms

Also Published As

Publication number Publication date
NO303756B1 (no) 1998-08-24
EP0848389A3 (fr) 1999-01-13
NO965245L (no) 1998-06-10
NO965245D0 (no) 1996-12-09
IS4624A (is) 1998-06-10

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