EP0821369A2 - Gaine métallique pour un câble électrique - Google Patents

Gaine métallique pour un câble électrique Download PDF

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Publication number
EP0821369A2
EP0821369A2 EP97401521A EP97401521A EP0821369A2 EP 0821369 A2 EP0821369 A2 EP 0821369A2 EP 97401521 A EP97401521 A EP 97401521A EP 97401521 A EP97401521 A EP 97401521A EP 0821369 A2 EP0821369 A2 EP 0821369A2
Authority
EP
European Patent Office
Prior art keywords
tube
cable
corrugated
sheath
jacket
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
EP97401521A
Other languages
German (de)
English (en)
Other versions
EP0821369B1 (fr
EP0821369A3 (fr
Inventor
Gerhard Dr.Ing. Ziemek
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.)
Alcatel Lucent SAS
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24754034&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0821369(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Alcatel SA, Alcatel Alsthom Compagnie Generale dElectricite filed Critical Alcatel SA
Publication of EP0821369A2 publication Critical patent/EP0821369A2/fr
Publication of EP0821369A3 publication Critical patent/EP0821369A3/fr
Application granted granted Critical
Publication of EP0821369B1 publication Critical patent/EP0821369B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/0009—Apparatus or processes specially adapted for manufacturing conductors or cables for forming corrugations on conductors or 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
    • H01B7/20—Metal tubes, e.g. lead sheaths
    • H01B7/202—Longitudinal lapped metal tubes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49123—Co-axial cable

Definitions

  • the invention relates to a metallic sheath for an electrical cable with a ratio from inner diameter Di to outer diameter Da of at least 0.90.
  • Metallic sheaths for protecting electrical cables have long been known. Especially at underground cables, the metal sheath is designed to insulate against moisture protect.
  • a metallic sheath consists of a lead sheath over the insulating layer is extruded.
  • the lead sheath has the great advantage that leakage currents are dissipated well can.
  • the connection of two lead coats in particular is very easy to carry out.
  • the lead sheath protects the cable from moisture, but does not hinder the flexibility of the Cable.
  • the wall thickness of the lead jacket is approximately 10% of the outside diameter. Due to ecological requirements, the lead jacket should in future be covered by other metal jackets be replaced with identical properties
  • corrugated jacket was developed as an alternative to the lead jacket. This is what it is about is a longitudinally welded metal pipe, which after welding with a helical or annular corrugation is provided.
  • the corrugation gives the relative thin-walled jacket a higher strength and better flexibility.
  • a longitudinally running metal strip is made using a molding tool formed into a tube, the tube was longitudinally welded and corrugated.
  • the metal band becomes too a tube with a larger diameter than the diameter of the inserted into the slotted tube Cable core shaped to prevent damage to the cable core by the arc of the Avoid welding equipment.
  • the cable core is by the Corrugated process arising troughs gripped.
  • a corrugated metal sheath for electrical cables which the inside diameter Di of the corrugated tube between 0.75 and 0.85 of Outside diameter because of the corrugated pipe.
  • the distance between two neighboring ones Wave crests are 0.15 to 0.25 of Da and the wall thickness is 0.005 to 0.02 of Da.
  • the corrugated process is a process such as that described in DE-AS 1086314.
  • a rotatably arranged in a rotary driven well head Weller roller ring rolls on the surface of the welded pipe and presses because it is mounted eccentrically in the well head, the tube wall. With this procedure you can Pipes with a ratio of outside diameter Da to wall thickness s of less than 30 and not manufacture more than 100 without special precautions.
  • the object of the present invention is to provide a metallic, corrugated jacket for a electrical cable with a ratio of inner diameter Di to outer diameter Da of more than 0.90, which is sufficiently flexible, offers metallic protection, without increasing the diameter of the cable too much.
  • the jacket consists of a longitudinally welded, corrugated metal tube, whose wall thickness s is between 0.009 and 0.005 Da and at which is the distance p between two adjacent wave crests between 0.12 and 0.08 Da is.
  • the main advantage of the invention is that with the jacket according to the teaching of Invention equipped cable easily in place of a provided with a lead jacket Cable can be laid because the corrugated jacket is not stronger according to the teaching of the invention applies as the analog lead coat.
  • the cable sheath is easy to bend and has excellent dent resistance, or Lateral stability.
  • shaft spacing Through the appropriate selection of shaft spacing, shaft depth at given the outside diameter, the wall thickness s can be reduced to a level which is required for the electrical properties.
  • the invention also relates to an electrical power cable consisting of a conductor, a conductor smoothing, an insulating layer based on plastic, an outer conductive layer and a metallic outer jacket resting on the outer conductive layer.
  • the cable jacket is a corrugated tube
  • the ratio of Inner diameter Di to outer diameter Da is greater than 0.90
  • the wall thickness between 0.009 and 0.005
  • the distance between two adjacent wave crests between 0.12 and 0.08 Da.
  • a copper alloy is used as the material for the cable sheath, which is an electrical one Has conductivity of 44% IACS and therefore all requirements from an electrical point of view Fulfills.
  • the alloy should be easy to weld so that high welding speeds can be achieved be and have good ductility so that the corrugation easily into the tube can be molded.
  • FIGS. 1 and 2 Exemplary embodiments explained in more detail.
  • Figure 1 shows the principle of the production of corrugated pipes, the corrugation according to the type the state of the art.
  • a metal strip 1 drawn off from a supply spool, not shown, is by means of a Forming tool 3 formed into a slotted tube 2.
  • a Forming tool 3 formed into a slotted tube 2.
  • the slotted tube 2 is produced with a diameter such that between the cable core 4th and the slot of the slotted tube 2 has a sufficient gap so that the cable core 4 is not damaged if the slot by means of the welding device 5 - one Arc welding device or a laser welding device - is closed.
  • the welded tube 6 is then fed to a corrugated device 7, which consists of the welded, smooth tube 6 produces a corrugated tube 8.
  • the corrugation of the corrugated tube 8 is such that the Cable core 4 is grasped by the corrugation, d. H. the troughs of the corrugated tube 8 are on the Cable core 4 on.
  • Such a method is known in principle from DE-AS 1086314.
  • FIG. 2 shows a conventional cable with a cable core 4 in the left half of the figure and a lead jacket 9 resting on the cable core 4.
  • the wall thickness of the Lead sheath is determined by the mechanical requirements and for the Current carrying capacity of the cable required cross section.
  • the wall thickness of the lead jacket conventional lead sheathed cable is between 5 and 10% of the outside diameter of the Lead jacket.
  • the corrugation of the jacket 10 according to the teaching of the invention (right half of Figure 2) is so designed that the outer diameter Da and the inner diameter Di the Correspond to the outer diameter and the inner diameter of the lead jacket 9, d. H. of the Jacket 10 replaces lead jacket 9 without changing the geometrical dimensions have to.
  • a provided with the jacket 10 according to the invention can thus like that known lead sheathed cables are pulled into cable ducts and thereby a previously used Replace lead sheathed cable.
  • the electrical properties of the jacket 10 are achieved in that as a material for the jacket uses a copper alloy with 90% by weight copper and 10% by weight zinc, which has a conductivity of 44% IACS.
  • the table shows the dimensions of three cable sheaths made of the copper alloy mentioned. Dam] Di [mm] s [mm] p [mm] t [mm] 72.5 67.2 0.5 7.1 2.15 58.65 53.85 0.5 6.2 1.9 39.50 35.6 0.35 4.6 1.62

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulated Conductors (AREA)
  • Manufacturing Of Electric Cables (AREA)
  • Details Of Indoor Wiring (AREA)
EP97401521A 1996-07-24 1997-06-30 Gaine métallique pour un câble électrique Expired - Lifetime EP0821369B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US685875 1996-07-24
US08/685,875 US5760334A (en) 1996-07-24 1996-07-24 Metallic sheath for an electric cable and method of making the same

Publications (3)

Publication Number Publication Date
EP0821369A2 true EP0821369A2 (fr) 1998-01-28
EP0821369A3 EP0821369A3 (fr) 1998-12-02
EP0821369B1 EP0821369B1 (fr) 2000-10-11

Family

ID=24754034

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97401521A Expired - Lifetime EP0821369B1 (fr) 1996-07-24 1997-06-30 Gaine métallique pour un câble électrique

Country Status (6)

Country Link
US (1) US5760334A (fr)
EP (1) EP0821369B1 (fr)
JP (1) JPH1092241A (fr)
CA (1) CA2211272C (fr)
DE (1) DE59702441D1 (fr)
GR (1) GR3035035T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10330862A1 (de) * 2003-07-09 2005-01-27 Nexans Hochtemperaturbeständige elektrische Leitung

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6255591B1 (en) * 1998-10-13 2001-07-03 Gerhard Ziemek Electric cables with metallic protective sheaths
DE10109666B4 (de) * 2001-02-28 2014-05-08 Volkswagen Ag Elektrische Verbindungsanordnung in einem Kraftfahrzeug mit einem biegesteifen Kabel, Verfahren zur Herstellung einer Verbindungseinheit mit einem biegesteifen Kabel und Fahrzeug mit einer solchen Verbindungsanordnung
US6624358B2 (en) * 2001-12-13 2003-09-23 Andrew Corporation Miniature RF coaxial cable with corrugated outer conductor
US7044785B2 (en) * 2004-01-16 2006-05-16 Andrew Corporation Connector and coaxial cable with outer conductor cylindrical section axial compression connection
US7124724B2 (en) * 2005-02-15 2006-10-24 Champion Aerospace, Inc. Air-cooled ignition lead
KR100913559B1 (ko) * 2007-10-15 2009-08-24 엘에스전선 주식회사 동축케이블
KR101140233B1 (ko) 2009-02-24 2012-04-26 엘에스전선 주식회사 동축케이블
US9171659B2 (en) * 2012-09-14 2015-10-27 Abb Research Ltd Radial water barrier and a dynamic high voltage submarine cable for deep water applications
US8816197B2 (en) 2012-10-04 2014-08-26 Itt Manufacturing Enterprises Llc Pressure balanced connector termination
US8816196B2 (en) 2012-10-04 2014-08-26 Itt Manufacturing Enterprises Llc Pressure balanced connector termination
BR112016007149A2 (pt) 2013-10-15 2017-08-01 Itt Mfg Enterprises Llc terminação de conectores com equilíbrio de pressão
US9576702B2 (en) * 2013-10-21 2017-02-21 Dekoron Wire & Cable LLC Flexible armored cable
US9853394B2 (en) 2014-05-02 2017-12-26 Itt Manufacturing Enterprises, Llc Pressure-blocking feedthru with pressure-balanced cable terminations
US9793029B2 (en) 2015-01-21 2017-10-17 Itt Manufacturing Enterprises Llc Flexible, pressure-balanced cable assembly
US9843113B1 (en) 2017-04-06 2017-12-12 Itt Manufacturing Enterprises Llc Crimpless electrical connectors
US10276969B2 (en) 2017-04-20 2019-04-30 Itt Manufacturing Enterprises Llc Connector with sealing boot and moveable shuttle
US9941622B1 (en) 2017-04-20 2018-04-10 Itt Manufacturing Enterprises Llc Connector with sealing boot and moveable shuttle
CO2018009535A1 (es) * 2017-09-12 2018-09-28 Gen Cable Technologies Corp Cables flexibles libres halógenos de baja emisión de humo
JP2019129104A (ja) * 2018-01-26 2019-08-01 日立金属株式会社 絶縁電線

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DE1086314B (de) * 1954-02-01 1960-08-04 Pirelli General Cable Works Vorrichtung zum Wellen des Mantels eines elektrischen Kabels
US5527995A (en) * 1994-08-03 1996-06-18 The Okonite Company Cable for conducting energy

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GB791513A (en) * 1954-02-01 1958-03-05 Pirelli General Cable Works Improvements in or relating to machines and methods for corrugating electric cable sheaths
US2870792A (en) * 1956-03-07 1959-01-27 Pirelli General Cable Works Metal tubes or metal sheaths of electric cables
FR1549940A (fr) * 1967-05-23 1968-12-13
DE1916357A1 (de) * 1969-03-29 1971-06-16 Kabel Metallwerke Ghh Einrichtung zur kontinuierlichen Herstellung von Rohren mit Ringformwellung
US3582536A (en) * 1969-04-28 1971-06-01 Andrew Corp Corrugated coaxial cable
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Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1086314B (de) * 1954-02-01 1960-08-04 Pirelli General Cable Works Vorrichtung zum Wellen des Mantels eines elektrischen Kabels
US5527995A (en) * 1994-08-03 1996-06-18 The Okonite Company Cable for conducting energy

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10330862A1 (de) * 2003-07-09 2005-01-27 Nexans Hochtemperaturbeständige elektrische Leitung

Also Published As

Publication number Publication date
US5760334A (en) 1998-06-02
GR3035035T3 (en) 2001-03-30
CA2211272A1 (fr) 1998-01-24
EP0821369B1 (fr) 2000-10-11
EP0821369A3 (fr) 1998-12-02
DE59702441D1 (de) 2000-11-16
CA2211272C (fr) 2005-06-28
JPH1092241A (ja) 1998-04-10

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