EP1191546A1 - Câble d' énergie à haute tension - Google Patents

Câble d' énergie à haute tension Download PDF

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Publication number
EP1191546A1
EP1191546A1 EP00203293A EP00203293A EP1191546A1 EP 1191546 A1 EP1191546 A1 EP 1191546A1 EP 00203293 A EP00203293 A EP 00203293A EP 00203293 A EP00203293 A EP 00203293A EP 1191546 A1 EP1191546 A1 EP 1191546A1
Authority
EP
European Patent Office
Prior art keywords
tensile
power cable
wire ropes
cable
armour
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.)
Withdrawn
Application number
EP00203293A
Other languages
German (de)
English (en)
Inventor
Jan Rytter
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.)
NKT Power Cables AS
Original Assignee
NKT Power Cables AS
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 NKT Power Cables AS filed Critical NKT Power Cables AS
Priority to EP00203293A priority Critical patent/EP1191546A1/fr
Publication of EP1191546A1 publication Critical patent/EP1191546A1/fr
Withdrawn legal-status Critical Current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
    • H01B7/14—Submarine cables
    • 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
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/22—Metal wires or tapes, e.g. made of steel
    • H01B7/226—Helicoidally wound metal wires or tapes

Definitions

  • the present invention relates to a high-voltage power cable for submarine power transmission comprising two or more cable cores, each core comprising a conductor with an insulation system around the conductor, a sheath encompassing the cable cores, a tensile armour comprising a plurality of helical tensile wires wound around the sheath and an outer protective cover jacketing the tensile armour.
  • Power cables such as submarine power cables, are typically flat configuration power cables with the cable cores arranged parallely next to each other.
  • the cores are jacketed by a sheath typically made of lead.
  • the armour is steel rods helically wound around the sheath of the cable in order to provide the cable with a good tensile strength.
  • the armour rods are wound in a certain helical angle around the sheath so that the armour is permanently positioned around the lead sheath.
  • a tensile armour is provided which is simple to produce and which can absorb a relatively high tension force, just as the armour offers good protection of the cable.
  • the object of the invention is to provide an electric high-voltage power cable for submarine purposes which is flexible and consequently easy to handle, in particular during layout of the cable.
  • a high-voltage power cable of the initially mentioned kind wherein one or more of the tensile wires, which are helically wound, are wire ropes made of a multiple of braided or twisted strands or filaments.
  • an armour exclusively made of wire ropes can be used.
  • a tensile armour comprising a combination of rods and ropes may be used to increase the axial rigidity.
  • all tensile wires of the tensile armour are wire ropes.
  • a power cable is obtained wherein the internal torsion is reduced to a minimum since the twisted or braided strands do not significantly resist bending around the cable during the winding of the wire ropes onto the cable.
  • the tensile wires may be either twisted wire ropes or braided filaments forming wire bands. By a braided, flat wire band, a more compact armour may be achieved.
  • the twisted wire ropes in the tensile armour are wire ropes including a number of twisted steel, aluminium and/or copper strands.
  • the armour may be composed by wire ropes in a suitable material or materials in accordance with specific requirements, i.e. light weight, high strength-to-weight ratio, etc.
  • the wire ropes in the tensile armour are litz wires.
  • one or more of the wire ropes may be provided with a core strand consisting of non-metallic filaments.
  • the flexibility of the armour may be further increased.
  • the wire ropes may be supplied with a corrosion protective treatment individually or as a whole, such as an impregnation of an anticorrosion agent.
  • a corrosion protective treatment individually or as a whole, such as an impregnation of an anticorrosion agent.
  • the armouring or individual wire ropes may be provided with a protective lining.
  • the tensile armour comprises two or more layers of helically counter-wound tensile wire, where at least one of the layers comprises wire ropes made up by a multiple of braided or twisted strands.
  • the cable cores are arranged next to each other in a flat configuration.
  • a compact cable may be produced which is relatively easy to lay out due to its flexibility.
  • the layout of a flat power cable at sea involves unwinding of the cable from a reel onboard a ship.
  • the cable is upright and must be twisted one quarter of a revolution so that the cable leaves the ship sliding on its broad side.
  • the length required for twisting the flat power cable may be significantly reduced by a power cable according to this embodiment of the invention.
  • a cable according to a first embodiment of the invention is shown.
  • the cable 1 comprises two cable cores arranged next each other to form a flat configuration power cable.
  • Each of the cable cores comprises a conductor 2 which is provided with an insulation system 3.
  • the cable cores are encompassed by a lead sheath 4.
  • the sheath 4 is protected by a tensile armour 5 jacketing the sheath 4.
  • the tensile armour 5 is coated by an outer sheath 6 which protects the cable 1 and prevents water from penetrating the cable 1.
  • the tensile armour 5 is made up by a number of parallel wires 7 that are helically wound around the sheath 4.
  • the wires 7 are arranged next to each other so that the surface around the sheath 4 is covered.
  • the wires 7 are helically wound in such a way that each of the wires 7 is retained in its position in the cable construction.
  • the tensile armour 5 serves the purpose of providing mechanical protection and tensile strength to the cable.
  • the wires 7 of the tensile armour 5 are made of wire ropes, as shown in fig. 2.
  • the tensile armour 5 becomes more flexible and less resistant to bending while maintaining its tensile strength.
  • the type of wire 7 used in the tensile armour 5 of a cable according to the invention may be chosen in accordance with specific requirements of the armour 5.
  • figures 3 to 5 some examples of preferred kinds of wire ropes are shown.
  • the wire rope 7 is made by a number of strands 8 twisted around a core strand 10.
  • the strands 8, 10 are formed by twisted filaments 11.
  • the material of the filaments may be steel, aluminium, or other metal or non-metallic materials, such as polymers or ceramic materials which may be reinforced by fibers or the like.
  • the wire rope 7 shown in fig. 3 is provided with a coating or lining 9 for protection of the wire from corrosion.
  • the coating 9 is preferably a polymer coating 9.
  • the wire 7 is a braided wire band.
  • the band 7' consists of braided filaments 11 braided in a flat wire tape configuration.
  • a particularly compact tensile armour 5 may be provided.

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  • Insulated Conductors (AREA)
EP00203293A 2000-09-25 2000-09-25 Câble d' énergie à haute tension Withdrawn EP1191546A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00203293A EP1191546A1 (fr) 2000-09-25 2000-09-25 Câble d' énergie à haute tension

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00203293A EP1191546A1 (fr) 2000-09-25 2000-09-25 Câble d' énergie à haute tension

Publications (1)

Publication Number Publication Date
EP1191546A1 true EP1191546A1 (fr) 2002-03-27

Family

ID=8172050

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00203293A Withdrawn EP1191546A1 (fr) 2000-09-25 2000-09-25 Câble d' énergie à haute tension

Country Status (1)

Country Link
EP (1) EP1191546A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1783786A2 (fr) * 2005-11-04 2007-05-09 nkt cables GmbH Système de câble avec un écran magnétique
WO2013072124A1 (fr) * 2011-11-14 2013-05-23 Nv Bekaert Sa Fil d'acier destiné à l'absorption de champs magnétiques
WO2017057863A1 (fr) * 2015-09-30 2017-04-06 엘에스전선 주식회사 Câble sous-marin à blindage hétérogène
CN108601121A (zh) * 2018-07-03 2018-09-28 山东华宁电伴热科技有限公司 一种油井加热电缆
CN109215866A (zh) * 2018-09-30 2019-01-15 河北华通线缆集团股份有限公司 一种分段式橄榄形铅条配重港机吊线控制缆及其制造方法
US10475553B2 (en) 2015-09-30 2019-11-12 Ls Cable & System Ltd. Submarine cable having heterogeneous armor
EP3985687A1 (fr) * 2020-10-13 2022-04-20 NKT HV Cables AB Câble électrique sous-marin blindé

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1193122B (de) * 1962-06-06 1965-05-20 Land Und Seekabelwerke Ag Aus Kupfer- und Stahldraehten bestehende Litze
US3584139A (en) * 1968-12-27 1971-06-08 Bell Telephone Labor Inc Torque-balanced communications cable

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1193122B (de) * 1962-06-06 1965-05-20 Land Und Seekabelwerke Ag Aus Kupfer- und Stahldraehten bestehende Litze
US3584139A (en) * 1968-12-27 1971-06-08 Bell Telephone Labor Inc Torque-balanced communications cable

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1783786A2 (fr) * 2005-11-04 2007-05-09 nkt cables GmbH Système de câble avec un écran magnétique
EP1783786A3 (fr) * 2005-11-04 2010-07-14 nkt cables GmbH Système de câble avec un écran magnétique
WO2013072124A1 (fr) * 2011-11-14 2013-05-23 Nv Bekaert Sa Fil d'acier destiné à l'absorption de champs magnétiques
WO2017057863A1 (fr) * 2015-09-30 2017-04-06 엘에스전선 주식회사 Câble sous-marin à blindage hétérogène
US10475553B2 (en) 2015-09-30 2019-11-12 Ls Cable & System Ltd. Submarine cable having heterogeneous armor
CN108601121A (zh) * 2018-07-03 2018-09-28 山东华宁电伴热科技有限公司 一种油井加热电缆
CN109215866A (zh) * 2018-09-30 2019-01-15 河北华通线缆集团股份有限公司 一种分段式橄榄形铅条配重港机吊线控制缆及其制造方法
CN109215866B (zh) * 2018-09-30 2024-01-30 河北华通线缆集团股份有限公司 一种分段式橄榄形铅条配重港机吊线控制缆及其制造方法
EP3985687A1 (fr) * 2020-10-13 2022-04-20 NKT HV Cables AB Câble électrique sous-marin blindé
WO2022078909A1 (fr) * 2020-10-13 2022-04-21 Nkt Hv Cables Ab Câble d'alimentation sous-marin blindé

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