EP0003104B1 - Elektrisches Koaxialkabel - Google Patents

Elektrisches Koaxialkabel Download PDF

Info

Publication number
EP0003104B1
EP0003104B1 EP79100012A EP79100012A EP0003104B1 EP 0003104 B1 EP0003104 B1 EP 0003104B1 EP 79100012 A EP79100012 A EP 79100012A EP 79100012 A EP79100012 A EP 79100012A EP 0003104 B1 EP0003104 B1 EP 0003104B1
Authority
EP
European Patent Office
Prior art keywords
cords
central conductor
diameter
fact
polyethylene
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.)
Expired
Application number
EP79100012A
Other languages
English (en)
French (fr)
Other versions
EP0003104A1 (de
Inventor
André Litauer
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.)
Cables de Lyon SA
Original Assignee
Cables de Lyon SA
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 Cables de Lyon SA filed Critical Cables de Lyon SA
Publication of EP0003104A1 publication Critical patent/EP0003104A1/de
Application granted granted Critical
Publication of EP0003104B1 publication Critical patent/EP0003104B1/de
Expired legal-status Critical Current

Links

Images

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
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
    • H01B11/1834—Construction of the insulation between the conductors
    • 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
    • H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables

Definitions

  • the present invention relates to a coaxial electric cable, comprising at least one central conductor, surrounded by an electrical insulator, an external conductor and an insulating sheath, and further comprising longitudinal cords made of aromatic polyamide fibers agglomerated by a resin.
  • the electric cables currently used include load-bearing elements making it possible to suspend them between posts, or vertically. These load-bearing elements consist of steel wires responsible for supporting the mechanical forces. These wires are sometimes introduced into the core of cables (submarine coaxial cables) or between conductors. Most often, they are wrapped around cables, of which they constitute an external armor.
  • the metallic load-bearing elements have the drawback of modifying the dielectric characteristics of the insulator. In addition, they increase the volume of the cable when they constitute the external armor, and in any event significantly increase its weight.
  • Publication DE-A-25 22 849 describes a coaxial cable successively comprising, from its axis, a central conductor, an insulator, an external conductor, a layer of an ethylene copolymer, strings resistant to tensile fibers of glass or aromatic polyamide, and an external polyethylene sheath.
  • the outer sheath is welded to the layer of ethylene copolymer at the time of its application, for example by spraying, so that the tensile-resistant cords adhere to it.
  • Such a structure is somewhat complex, requires a relatively large cable diameter and does not ensure perfect connection of the strings with the rest of the cable.
  • the present invention aims to provide a coaxial cable in longitudinal carriers strings, which has a simple structure and is very compact, which is relatively small in diameter and more light per unit length, despite the excellent resistance tensile, and does not disturb the dielectric characteristics of the insulation.
  • the electric cable according to the invention is characterized in that the longitudinal cords are arranged between the central conductor and the external conductor and embedded in the electrical insulation.
  • the electric cable according to the invention also preferably includes at least one of the characteristics defined by the subclaims.
  • FIG. 1 shows in cross section a coaxial cable with six carrying cords, in aromatic polyamide of the brand "Kevlar” from the company Du Pont de Nemours, marketed by the Company Cordes Europe France.
  • FIG. 2 also shows in cross section a coaxial cable with four analogous carrying cords.
  • FIG. 3 represents a coaxial cable with six carrying cords, each formed by seven stranded cords.
  • FIG. 4 represents a coaxial cable with two layers of carrying cords, an inner layer with nine cords and an outer layer with sixteen cords.
  • the cable of FIG. 1 comprises a central conductor 1 formed of seven stranded wires of red copper, not restricted. This conductor is surrounded by six cords 2 of the brand "Cef", formed by fine fibers of the aromatic polyamide of the brand “Kevlar” marketed by Du Pont de Nemours, impregnated with a hardenable resin and braided. These cords are embedded in an insulator 3 made of polyethylene. Such strings have a density of 1 to 1, 2, a breaking strength of 1500 to 1800 N / mm 2 , and an elongation at break of 2 to 3%.
  • the assembly is obtained by extruding the insulation in an extruder comprising an axial punch through which the central conductor and the cords pass.
  • the external conductor consists of a braid 4 of red copper wires.
  • the assembly is surrounded by a sheath 5 made of polyvinyl chloride or polyethylene.
  • the cable of FIG. 2 is similar to that of FIG. 1, but only has four "Kevlar" cords 2, with a diameter slightly greater than that of the strings of FIG. 1.
  • the cable of FIG. 3 comprises a central conductor 1, of seven stranded wires of red copper, not shrunk. The latter is surrounded by polyethylene insulation 3, in which six "Cef" cords are embedded, each composed of seven strands stranded in "Kevlar” fibers agglomerated by a resin. In three of these strings 11, 13, 15, the direction of winding of the cords is to the right, while it is to the left in the other three strings 12, 14, 16, alternated with the first.
  • the cable furthermore comprises, like the previous ones, an outer conductor 4 made of copper braid, and a sheath 5 made of polyvinyl chloride or polyethylene.
  • the cable of Figure 4 has the same central conductor 1 of seven stranded copper wires, not constricted. This conductor is surrounded by two concentric layers of "Cef" cords.
  • the inner layer consists of six cords 21 of "Kevlar” fibers, alternated with three cords 22 of "Kevlar” fibers of smaller diameter, sheathed in polyethylene to a diameter equal to that of the other cords. These strings are rolled helically around the central conductor.
  • the outer layer is formed by four cords 23, alternated with twelve cords 24 of smaller diameter, sheathed in polyethylene until the same outside diameter is obtained.
  • the strings of the two layers are wound helically around the central conductor, the pitch of the outer layer being greater than that of the inner layer.
  • the assembly of the central conductor and of the two layers of cords is embedded in an insulator 3 made of polyethylene, surrounded by a braid 4 of red copper wires and an outer sheath 5 made of polyvinyl chloride or polyethylene.
  • the proportion of polyamide "Kevlar” wires or ribbons incorporated in the dielectric is chosen according to the qualities to be respected (mechanical resistance, impedance, weakening).

Landscapes

  • Insulated Conductors (AREA)
  • Ropes Or Cables (AREA)
  • Communication Cables (AREA)

Claims (5)

1. Elektrisches Koaxialkabel, das mindestens einen zentralen Leiter (1), der von einer elektrischen Isolierung (3), einem Außenleiter (4) und einer Isolierhülle (5) umgeben ist, und außerdem Längsseile aus mit einem Harz gebundenen aromatischen Polyamidfasern aufweist, dadurch gekennzeichnet, daß die Längsseile zwischen dem zentralen Leiter (1) und dem Außenleiter (4) angeordnet und in die elektrische Isolierung (3) eingebettet sind.
2. Kabel nach Anspruch 1, dadurch gekennzeichnet, daß es um einen zentralen Leiter herum mindestens vier Seile (2) aufweist, die in eine Polyäthylenisolierung (3, Fig. 2) eingebettet sind.
3. Kabel nach Anspruch 1, dadurch gekennzeichnet, daß es um einen zentralen Leiter herum sechs Seile (11 bis 17) aufweist, von denen jedes aus sieben verseilten Adern besteht, wobei die Adern von drei Seilen (11, 13, 15) in einer schraubenförmigen Richtung und die Adern der drei anderen Seile (12, 14, 16) in der entgegengesetzten schraubenförmigen Richtung verseilt sind und die Gesamtheit der Seile in eine Polyäthylenisolierung (3, Fig. 3) eingebettet ist.
4. Kabel nach Anspruch 1, dadurch gekennzeichnet, daß es um einen zentralen Leiter herum zwei Lagen von Seilen eines bestimmten Durchmessers aufweist, wobei die innere Lage regelmäßig abwechselnd sechs Seile (21) des bestimmten Durchmessers und drei Seile (22) geringeren Durchmessers aufweist, die mit Polyäthylen umhüllt sind, um auf denselben Durchmesser zu kommen, während die äußere Lage regelmäßig abwechselnd drei Seile (23) des bestimmten Durchmessers und zwölf Seile (24) geringeren Durchmessers aufweist, die mit Polyäthylen umhüllt sind, um auf denselben äußeren Durchmesser zu kommen, und wobei der Windungsschritt der äußeren Lage größer als der der inneren Lage ist und die Gesamtheit der Seile in eine Isolierung aus Polyathylen (3, Fig. 4) eingebettet ist.
5. Kabel nach Anspruch 4, dadurch gekennzeichnet, daß es zwischem dem zentralen Leiter und der ersten Lage von Seilen und zwischen den beiden Lagen ein Füll- und Dichtmaterial aus mit Silizium angereichertem Polyisobutylen aufweist.
EP79100012A 1978-01-10 1979-01-03 Elektrisches Koaxialkabel Expired EP0003104B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7800506A FR2414243A1 (fr) 1978-01-10 1978-01-10 Cable electrique a element porteur longitudinal
FR7800506 1978-01-10

Publications (2)

Publication Number Publication Date
EP0003104A1 EP0003104A1 (de) 1979-07-25
EP0003104B1 true EP0003104B1 (de) 1981-10-14

Family

ID=9203244

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79100012A Expired EP0003104B1 (de) 1978-01-10 1979-01-03 Elektrisches Koaxialkabel

Country Status (6)

Country Link
US (1) US4259544A (de)
EP (1) EP0003104B1 (de)
JP (2) JPS5497792A (de)
CA (1) CA1112733A (de)
DE (1) DE2960935D1 (de)
FR (1) FR2414243A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9027657B2 (en) 2009-09-22 2015-05-12 Schlumberger Technology Corporation Wireline cable for use with downhole tractor assemblies
US9412492B2 (en) 2009-04-17 2016-08-09 Schlumberger Technology Corporation Torque-balanced, gas-sealed wireline cables
US11387014B2 (en) 2009-04-17 2022-07-12 Schlumberger Technology Corporation Torque-balanced, gas-sealed wireline cables

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4317000A (en) * 1980-07-23 1982-02-23 The United States Of America As Represented By The Secretary Of The Navy Contrahelically laid torque balanced benthic cable
US4518830A (en) * 1982-06-25 1985-05-21 At&T Bell Laboratories Armored telephone cord with a longitudinal strength member
GB2374721B (en) * 1986-05-17 2003-02-26 Stc Plc Coaxial cable
US4837815A (en) * 1986-06-26 1989-06-06 Nynex Corporation Armored cord handset
US4845774A (en) * 1986-10-06 1989-07-04 Raymond Arzounian Apparatus for anchoring a telephone handset to a telephone housing
USRE33647E (en) * 1986-10-06 1991-07-23 Apparatus for anchoring a telephone handset to a telephone housing
US5089668A (en) * 1988-11-18 1992-02-18 Plessey Australia Pty. Limited Of Faraday Park Towable buoyant streamer for data bearer
JP3028488B2 (ja) * 1989-11-20 2000-04-04 トヨクニ電線株式会社 応急用通信の設置方法および応急用通信ケーブル
US5180890A (en) * 1991-03-03 1993-01-19 Independent Cable, Inc. Communications transmission cable
US6411709B1 (en) * 1994-11-17 2002-06-25 Unex Corporation Flexible microphone boom
US6595958B1 (en) 2000-08-08 2003-07-22 Scimed Life Systems, Inc. Tortuous path injection device and method
GB0425584D0 (en) * 2004-11-20 2004-12-22 Expro North Sea Ltd Improved cable
US8413723B2 (en) 2006-01-12 2013-04-09 Schlumberger Technology Corporation Methods of using enhanced wellbore electrical cables
US7326854B2 (en) 2005-06-30 2008-02-05 Schlumberger Technology Corporation Cables with stranded wire strength members
US7462781B2 (en) 2005-06-30 2008-12-09 Schlumberger Technology Corporation Electrical cables with stranded wire strength members
NO20073832L (no) * 2007-07-20 2009-01-21 Fmc Kongsberg Subsea As Komposittkabel
US8697992B2 (en) 2008-02-01 2014-04-15 Schlumberger Technology Corporation Extended length cable assembly for a hydrocarbon well application
GB2479725B (en) * 2010-04-19 2012-08-22 Technip France Umbilical
US10522270B2 (en) 2015-12-30 2019-12-31 Polygroup Macau Limited (Bvi) Reinforced electric wire and methods of making the same

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL300943A (de) * 1963-01-29
FR1583157A (de) * 1966-01-20 1969-10-24
US3482034A (en) * 1967-03-07 1969-12-02 Rochester Ropes Inc Conductive tow cable
GB1293942A (en) * 1969-02-06 1972-10-25 Connollys Blackley Ltd Method of and apparatus for impregnating and coating stranded bodies
CH519226A (fr) * 1969-04-22 1972-02-15 British Aircraft Corp Ltd Câble électrique de commande et utilisation de ce câble
US3634607A (en) * 1970-06-18 1972-01-11 Coleman Cable & Wire Co Armored cable
JPS4961685A (de) * 1972-10-18 1974-06-14
IT997846B (it) * 1972-12-08 1975-12-30 Kabel Metallwerke Ghh Perfezionamento nei cavi elettrici a piu conduttori
CH569348A5 (de) * 1973-05-23 1975-11-14 Daetwyler Ag
US3980808A (en) * 1974-09-19 1976-09-14 The Furukawa Electric Co., Ltd. Electric cable
JPS5642890Y2 (de) * 1975-03-22 1981-10-07
US3973385A (en) * 1975-05-05 1976-08-10 Consolidated Products Corporation Electromechanical cable
DE2522849A1 (de) * 1975-05-23 1976-12-02 Felten & Guilleaume Carlswerk Verfahren und vorrichtung zur herstellung von kabeln mit zugfestem kunststoffmantel
JPS5243825U (de) * 1975-09-22 1977-03-28
US4151237A (en) * 1977-01-20 1979-04-24 Lynenwerk Gmbh & Co. Kg Production of cables with undulated tension relief elements

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9412492B2 (en) 2009-04-17 2016-08-09 Schlumberger Technology Corporation Torque-balanced, gas-sealed wireline cables
US11387014B2 (en) 2009-04-17 2022-07-12 Schlumberger Technology Corporation Torque-balanced, gas-sealed wireline cables
US9027657B2 (en) 2009-09-22 2015-05-12 Schlumberger Technology Corporation Wireline cable for use with downhole tractor assemblies
US9677359B2 (en) 2009-09-22 2017-06-13 Schlumberger Technology Corporation Wireline cable for use with downhole tractor assemblies

Also Published As

Publication number Publication date
FR2414243A1 (fr) 1979-08-03
EP0003104A1 (de) 1979-07-25
FR2414243B1 (de) 1980-08-22
DE2960935D1 (en) 1981-12-24
US4259544A (en) 1981-03-31
JPS63133024U (de) 1988-08-31
CA1112733A (fr) 1981-11-17
JPS5497792A (en) 1979-08-02

Similar Documents

Publication Publication Date Title
EP0003104B1 (de) Elektrisches Koaxialkabel
US4606604A (en) Optical fiber submarine cable and method of making
US4701576A (en) Electrical transmission line
US4081602A (en) Self-supporting cable
FR2470392A1 (fr) Cables a fibres optiques notmment pour systemes de transmission sous-marins
FR2693828A1 (fr) Câble pour signaux comportant un écran en polymère recouvert de métal.
CA2088215C (fr) Cable electrique haute frequence
CH694836A5 (fr) Câble de transmission de données à paires torsadées et procédé de fabrication.
FR2669143A1 (fr) Cable electrique a vitesse de propagation elevee.
EP2017855A2 (de) Elektrisches Kontrollkabel
CA1080817A (fr) Cable de telecommande comportant deux fils conducteurs separes par un element central
FR2829841A1 (fr) Cable a forte densite de fibres optiques
EP0200148B1 (de) Verstärkungsanordnung mit einer einen Formdraht aufweisenden Schicht; Erzeugnisse mit solchen Anordnungen
US5374782A (en) Stranded annular conductors
EP0252830B1 (de) Aramidkabel für Handhabungszwecke
EP0790511A1 (de) Faseroptisches Kabel ohne Verstärkungselement
EP1986199B1 (de) Verfahren zur Herstellung eines isolierten elektrischen Leiters der Klasse 5
FR2544124A1 (fr) Cable coaxial et son procede de fabrication
CN216250038U (zh) 抗弯曲防断线3芯绝缘电缆
EP0469343B1 (de) Elektrisches Koaxialkabel mit optischen Fasern
FR2693024A1 (fr) Câble mixte pour la transmission de données et la transmission d'énergie.
FR2468189A1 (fr) Cable electrique protege contre l'humidite
EP1164396A1 (de) Faseroptisches Kabel
JPS6143683B2 (de)
EP0294256A1 (de) Elektrisches Kabel zur Übertragung von Starkstrom und Steuerstrom

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE CH DE FR GB IT NL SE

17P Request for examination filed
ITF It: translation for a ep patent filed

Owner name: JACOBACCI & PERANI S.P.A.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE CH DE FR GB IT NL SE

REF Corresponds to:

Ref document number: 2960935

Country of ref document: DE

Date of ref document: 19811224

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19921230

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19930104

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19930120

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19930122

Year of fee payment: 15

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19930131

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19930202

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19930217

Year of fee payment: 15

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19940103

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19940104

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Effective date: 19940131

Ref country code: BE

Effective date: 19940131

BERE Be: lapsed

Owner name: LES CABLES DE LYON

Effective date: 19940131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19940801

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19940103

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19940930

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19941001

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 79100012.8

Effective date: 19940810

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT