EP0022745A1 - Câble électrique avec conducteur à plusieurs fils et barrière contre l'humidité - Google Patents

Câble électrique avec conducteur à plusieurs fils et barrière contre l'humidité Download PDF

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Publication number
EP0022745A1
EP0022745A1 EP80730045A EP80730045A EP0022745A1 EP 0022745 A1 EP0022745 A1 EP 0022745A1 EP 80730045 A EP80730045 A EP 80730045A EP 80730045 A EP80730045 A EP 80730045A EP 0022745 A1 EP0022745 A1 EP 0022745A1
Authority
EP
European Patent Office
Prior art keywords
conductor
plastic
layer
metal
electrically conductive
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
EP80730045A
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German (de)
English (en)
Other versions
EP0022745B1 (fr
Inventor
Manfred Reuter
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.)
Siemens AG
Original Assignee
Siemens AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6705893&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0022745(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens AG filed Critical Siemens AG
Priority to AT80730045T priority Critical patent/ATE6105T1/de
Publication of EP0022745A1 publication Critical patent/EP0022745A1/fr
Application granted granted Critical
Publication of EP0022745B1 publication Critical patent/EP0022745B1/fr
Expired 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
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
    • H01B7/285—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable
    • H01B7/288—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable using hygroscopic material or material swelling in the presence of liquid

Definitions

  • a swellable tape which consists of a water-soluble plastic made with swellable filler and which is primarily used to seal the gap between the cable core and the cable jacket (DE-OS 21 58 996).
  • the invention provides a new design of a single or multi-core electrical cable which has extruded plastic insulation and a metal or plastic sheath and in which at least one conductor is constructed from metal wires or strips and a layer of electrically conductive plastic is assigned to this conductor.
  • the new design is intended to ensure the longitudinal and transverse watertightness of the cable in the area of the multi-wire conductor. According to the invention it is therefore provided that an electrically conductive metal, paper or plastic film is arranged between the conductor and the conductive plastic layer, which is coated on one or both sides with a swelling agent under the influence of moisture.
  • the new design ensures that the cable is watertight in the area of the multi-wire conductor. This applies in particular to concentrically arranged conductors, for example shields of power cables or communication cables, which consist of a layer of round metal wires or a layer of profiled wires or also of two or more spun metal strips.
  • the use of an electrically conductive film ensures the electrical contact between the conductive layer of the cable and the conductor. Even when the electrically conductive film is coated with an insulating swelling agent, contact between the electrically conductive film and the conductor is ensured as a result of the radial pressure conditions.
  • the agent swelling under the influence of moisture which is in particular known cellulose-based substances such as methyl cellulose or ethyl cellulose, can be applied to the electrically conductive film, for example electrostatically or by means of an adhesion promoter such as polyvinyl acetate. Sintering may also be considered. Another possibility is to mix the swelling agent or swelling powder with a paste-like carrier material and to apply the mixture to the electrically conductive film. If necessary, an electrically conductive paste-like carrier can be used here.
  • the coating of the electrically conductive film with the agent swelling under the influence of moisture can be present on one or both sides.
  • the use of a plastic fleece which is enriched with the agent swelling under the action of moisture is particularly advantageous.
  • the figure shows a plastic-insulated medium-voltage cable, on the multi-wire conductor 1, the moisture barrier 2 is applied.
  • This is an electrically conductive plastic fleece, which is enriched with a swelling agent and which is spun onto the conductor in the form of a tape.
  • the extruded polyethylene insulation 3 is located above the barrier layer 2, including an inner conductive layer and an outer conductive layer, also unspecified, as is customary in medium-voltage cables.
  • a further moisture barrier 4 is arranged above it, which likewise consists of an electrically conductive plastic fleece which is enriched with a swelling agent, in particular a swelling powder.
  • the screen 5 made of copper wires is spun onto the barrier layer 4.
  • the outer jacket 6 made of polyvinyl chloride is located above this.

Landscapes

  • Insulated Conductors (AREA)
EP80730045A 1979-07-17 1980-07-03 Câble électrique avec conducteur à plusieurs fils et barrière contre l'humidité Expired EP0022745B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80730045T ATE6105T1 (de) 1979-07-17 1980-07-03 Elektrisches kabel mit mehrdraehtigem leiter und feuchtigkeitssperre.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE7920687U DE7920687U1 (de) 1979-07-17 1979-07-17 Elektrisches Kabel mit mehrdrähtigem Leiter und Feuchtigkeitssperre
DE7920687U 1979-07-17

Publications (2)

Publication Number Publication Date
EP0022745A1 true EP0022745A1 (fr) 1981-01-21
EP0022745B1 EP0022745B1 (fr) 1984-02-01

Family

ID=6705893

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80730045A Expired EP0022745B1 (fr) 1979-07-17 1980-07-03 Câble électrique avec conducteur à plusieurs fils et barrière contre l'humidité

Country Status (3)

Country Link
EP (1) EP0022745B1 (fr)
AT (1) ATE6105T1 (fr)
DE (1) DE7920687U1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164198A (en) * 1984-09-05 1986-03-12 Telephone Cables Ltd Cables
EP0269778A1 (fr) * 1986-11-21 1988-06-08 Firma Carl Freudenberg Procédé pour la fabrication d'un bandage gonflant pour câble
EP0342149A1 (fr) * 1988-05-10 1989-11-15 Siemens Aktiengesellschaft Conducteur électrique isolé par des matières synthétiques et procédé de fabrication
EP0391012A1 (fr) * 1989-04-07 1990-10-10 Siemens Aktiengesellschaft Mélange polymère extrudable pour câble électrique et gaine interne pour câble électrique, fabriquée à partir de ce mélange
NL9001960A (nl) * 1989-09-07 1991-04-02 Felten & Guilleaume Energie Droogmiddel voor het verwijderen van de laatste waterresten uit een gesloten afgewerkt produkt, in het bijzonder uit een hoogspanningskabel.
US5463361A (en) * 1991-11-18 1995-10-31 Motorola, Inc. Surface acoustic wave filter and method
CN104240823A (zh) * 2014-09-30 2014-12-24 广东中德电缆有限公司 一种抗压防潮电缆

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4344546C1 (de) * 1993-12-24 1995-05-04 Felten & Guilleaume Energie Längswasserdichtes Kabel mit Kunststoffisolierung und äußerem spiral- oder ringgewelltem Metallmantel

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4020276A (en) * 1975-04-11 1977-04-26 Scal - Societe De Conditionnements En Aluminum Sealant barrier for electrical cables
DE2605366A1 (de) * 1974-05-06 1977-08-18 Gen Cable Corp Hochspannungskraftkabel fuer erdverlegung
DE2007163B2 (de) * 1970-02-17 1978-07-27 3000 Hannover Längswasserdichtes elektrisches Kabel
FR2384336A1 (fr) * 1977-03-18 1978-10-13 Jeumont Schneider Procede pour etancheifier longitudinalement a l'eau un cable electrique a isolation synthetique et cable obtenu selon ce procede
DE2719094A1 (de) * 1977-04-29 1978-11-09 Kabel Metallwerke Ghh Kunststoffisoliertes mittel- oder hochspannungskabel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2007163B2 (de) * 1970-02-17 1978-07-27 3000 Hannover Längswasserdichtes elektrisches Kabel
DE2605366A1 (de) * 1974-05-06 1977-08-18 Gen Cable Corp Hochspannungskraftkabel fuer erdverlegung
US4020276A (en) * 1975-04-11 1977-04-26 Scal - Societe De Conditionnements En Aluminum Sealant barrier for electrical cables
FR2384336A1 (fr) * 1977-03-18 1978-10-13 Jeumont Schneider Procede pour etancheifier longitudinalement a l'eau un cable electrique a isolation synthetique et cable obtenu selon ce procede
DE2719094A1 (de) * 1977-04-29 1978-11-09 Kabel Metallwerke Ghh Kunststoffisoliertes mittel- oder hochspannungskabel

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164198A (en) * 1984-09-05 1986-03-12 Telephone Cables Ltd Cables
EP0269778A1 (fr) * 1986-11-21 1988-06-08 Firma Carl Freudenberg Procédé pour la fabrication d'un bandage gonflant pour câble
EP0342149A1 (fr) * 1988-05-10 1989-11-15 Siemens Aktiengesellschaft Conducteur électrique isolé par des matières synthétiques et procédé de fabrication
EP0391012A1 (fr) * 1989-04-07 1990-10-10 Siemens Aktiengesellschaft Mélange polymère extrudable pour câble électrique et gaine interne pour câble électrique, fabriquée à partir de ce mélange
NL9001960A (nl) * 1989-09-07 1991-04-02 Felten & Guilleaume Energie Droogmiddel voor het verwijderen van de laatste waterresten uit een gesloten afgewerkt produkt, in het bijzonder uit een hoogspanningskabel.
US5463361A (en) * 1991-11-18 1995-10-31 Motorola, Inc. Surface acoustic wave filter and method
CN104240823A (zh) * 2014-09-30 2014-12-24 广东中德电缆有限公司 一种抗压防潮电缆

Also Published As

Publication number Publication date
ATE6105T1 (de) 1984-02-15
EP0022745B1 (fr) 1984-02-01
DE7920687U1 (de) 1979-10-18

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