FR2674364A1 - Cable having a low coefficient of friction, and process and device for manufacturing this cable - Google Patents

Cable having a low coefficient of friction, and process and device for manufacturing this cable Download PDF

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Publication number
FR2674364A1
FR2674364A1 FR9103326A FR9103326A FR2674364A1 FR 2674364 A1 FR2674364 A1 FR 2674364A1 FR 9103326 A FR9103326 A FR 9103326A FR 9103326 A FR9103326 A FR 9103326A FR 2674364 A1 FR2674364 A1 FR 2674364A1
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FR
France
Prior art keywords
cable
sheath
friction
manufacturing
composite material
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
FR9103326A
Other languages
French (fr)
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FR2674364B1 (en
Inventor
Bonicel Jean-Pierre
Tatat Olivier
Taquet Jean-Jacques
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 France SAS
Original Assignee
Alcatel Cable 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 Alcatel Cable SA filed Critical Alcatel Cable SA
Priority to FR9103326A priority Critical patent/FR2674364B1/en
Publication of FR2674364A1 publication Critical patent/FR2674364A1/en
Application granted granted Critical
Publication of FR2674364B1 publication Critical patent/FR2674364B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
    • G02B6/50—Underground or underwater installation; Installation through tubing, conduits or ducts
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4407—Optical cables with internal fluted support member
    • 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
    • H01B7/187—Sheaths comprising extruded non-metallic layers

Abstract

The cable is characterised in that it includes, around its outer jacket (sleeve), a peripheral sliding jacket made of composite material formed from plastic and from silicone resin, forming an overjacketing of the said outer jacket. Application: power (electrical) cable or optical telecommunication cable.

Description

Câble à faible coefficient de frottement et procédé et dispositif de fabrication de ce câble.Cable with low coefficient of friction and method and device for manufacturing this cable.

La présente invention concerne un câble électrique ou à fibres optiques en particulier pour leur installation en conduite, ainsi qu'un procédé et dispositif de fabrication de ce câble. The present invention relates to an electric or optical fiber cable in particular for their installation in a pipe, as well as to a method and device for manufacturing this cable.

Dans de nombreux domaines d'application et notamment en télécommunication, les câbles électriques ou à fibres optiques sont en conduite. Ils doivent pouvoir se tirer sur de grandes longueurs, dans les conduites prévues pour les recevoir. I1 convient donc de les faire glisser facilement le long de la paroi interne de la conduite, avec un coefficient de frottement relatif faible vis-à-vis de celle-ci. In many fields of application and in particular in telecommunications, electrical cables or optical fibers are in the pipeline. They must be able to pull themselves over great lengths, in the pipes intended to receive them. It is therefore advisable to slide them easily along the internal wall of the pipe, with a low relative coefficient of friction with respect to the latter.

Dans ce but, on a proposé dans le document DE-A-3734248 de munir la surface interne des conduites d'une couche à faible coefficient de frottement, notamment en matériau compound à base de cire de polyéthylène et de résine silicone, que l'on applique sur ses parois internes peu avant la pose des câbles dans cette conduite. To this end, it has been proposed in document DE-A-3734248 to provide the internal surface of the pipes with a layer with a low coefficient of friction, in particular of compound material based on polyethylene wax and silicone resin, that the it is applied to its internal walls shortly before laying the cables in this pipe.

L'application de cette couche anti-frottement est réalisée par traction ou refoulement dans la conduite d'un bouchon spongieux imprégné d'une émulsion de cire de polyéthylène et de résine silicone.The application of this anti-friction layer is carried out by traction or discharge in the pipe of a spongy plug impregnated with an emulsion of polyethylene wax and silicone resin.

En outre, on peut enduire également le ou les câbles électriques ou à fibres optiques d'une couche de matériau à faible coefficient de frottement analogue, à celui appliqué sur les parois de la conduite au cours de son déroulement du touret de stockage, pour améliorer encore le glissement du ou des câbles. On élimine ensuite le solvant des émulsions, par passage dans les conduits et au contact de la surface des câbles d'air sous pression. In addition, it is also possible to coat the electric or optical fiber cable (s) with a layer of material with a low coefficient of friction similar to that applied to the walls of the pipe during its unwinding of the storage reel, to improve still the sliding of the cable (s). The solvent is then removed from the emulsions by passage through the conduits and in contact with the surface of the pressurized air cables.

I1 est cependant difficile d'obtenir de la sorte des revêtements favorisant un glissement uniforme, sur toute la longueur de la conduite et des câbles qui y sont tirés. Or au cours du tirage des câbles, tout contact de surfaces présentant un coefficient de frottement mutuel élevé risque d'entraîner la détérioration de l'intérieur du câble avec la traction exercée, pouvant conduire à l'endommagement ou la rupture des fibres ou l'allongement des conducteurs de cuivre ou autre du câble. It is however difficult to obtain in this way coatings promoting uniform sliding, over the entire length of the pipe and of the cables which are drawn therein. However, during the pulling of the cables, any contact with surfaces having a high coefficient of mutual friction risks causing deterioration of the interior of the cable with the traction exerted, which can lead to damage or breakage of the fibers or the extension of copper or other conductors of the cable.

La présente invention a pour but d'éviter de tels inconvénients en rendant facile la pose de câbles en conduite, sans nécessiter de grandes précautions et une opération de revêtement sur chantier. The present invention aims to avoid such drawbacks by making it easy to lay cables in the pipeline, without requiring great precautions and a coating operation on site.

Le câble selon l'invention est caractérisé en ce qu'il comporte autour de sa gaine externe une gaine périphérique de glissement en matériau composite formé de matière plastique et de résine silicone, un surgainage de la gaine externe. The cable according to the invention is characterized in that it comprises around its outer sheath a peripheral sliding sheath made of composite material formed of plastic and silicone resin, a sheathing of the outer sheath.

Le matériau composite de ladite gaine périphérique est de préférence en polyéthylène, à haut degré de polymèrisation et résistance mécanique élevée, imprégné de résine silicone. The composite material of said peripheral sheath is preferably made of polyethylene, with a high degree of polymerization and high mechanical strength, impregnated with silicone resin.

L'épaisseur de cette gaine périphérique est avantageusement comprise entre 0,5 mm et lmm. The thickness of this peripheral sheath is advantageously between 0.5 mm and 1 mm.

Le procédé de fabrication du câble de l'invention est caractérisé en ce que l'on extrude à la suite l'une de l'autre sur la ligne de fabrication du câble sa gaine externe et sa gaine périhérique de glissement. The method of manufacturing the cable of the invention is characterized in that one extrudes one after the other on the cable manufacturing line its outer sheath and its periherical sliding sheath.

Le dispositif de mise en oeuvre de ce procédé est caractérisé en ce qu'il comporte sur le trajet de -l'âme du câble à recouvrir une première extrudeuse alimentée en matériau de gainage externe et en aval de celle-ci une deuxième extrudeuse alimentée en matériau composite de surgainage. The device for implementing this process is characterized in that it comprises, on the path of the core of the cable to be covered, a first extruder supplied with external sheathing material and downstream of this a second extruder supplied with composite overglaze material.

Il est décrit ci-après à titre d'exemple et en référence à la figure unique du dessin annexé un câble à fibres optiques selon l'invention. It is described below by way of example and with reference to the single figure of the accompanying drawing a fiber optic cable according to the invention.

Dans cette figure unique le câble est montré en coupe. Il comporte un jonc 1 en matière thermoplastique et un porteur axial métallique 2 lui assurant une bonne résistance à la traction. Le jonc est à rainures hélicoldales 3, dans lesquelles sont disposées des fibres optiques 4. Il définit avec les fibres l'âme de ce câble optique. Il est entouré d'une gaine externe 5 en polyéthylène, elle-même entourée d'une gaine périphérique de surgainage 6, en matériau composite de polyéthylène, à haut degré de polymérisation et résistance mécanique élevée, imprégné de résine silicone. L'épaisseur de cette gaine périphérique est de 0,5 mm à 1 mm, elle donne au câble résultant un très faible coefficient de frottement. In this single figure the cable is shown in section. It comprises a rod 1 made of thermoplastic material and a metal axial carrier 2 ensuring good resistance to traction. The rod has helical grooves 3 in which optical fibers 4 are arranged. It defines with the fibers the core of this optical cable. It is surrounded by an outer sheath 5 of polyethylene, itself surrounded by a peripheral sheathing of outer sheathing 6, made of polyethylene composite material, with a high degree of polymerization and high mechanical strength, impregnated with silicone resin. The thickness of this peripheral sheath is from 0.5 mm to 1 mm, it gives the resulting cable a very low coefficient of friction.

Ce câble est rendu "glissant" sur toute sa longueur. Il peut ainsi être tiré dans n'importe quelle conduite, même de diamètre proche de celui du câble, ceci sans aucune préparation particulière sur le chantier et sans précaution spéciale, avec un effort de tirage réduit. This cable is made "slippery" over its entire length. It can thus be pulled in any pipe, even with a diameter close to that of the cable, without any special preparation on site and without special precautions, with a reduced pulling force.

La gaine de polyéthylène et la gaine périphérique en matériau composite ou d'alliage polyéthylène-résine silicone ont été appliquées sur le jonc par extrusion en tandem, à l'aide d'une première extrudeuse pour la gaine externe et d'une seconde extrudeuse pour le surgainage périphérique final de polyéthylène-résine de silicone.  The polyethylene sheath and the peripheral sheath of composite material or of polyethylene-silicone resin alloy were applied to the rod by tandem extrusion, using a first extruder for the external sheath and a second extruder for the final peripheral overglaze of polyethylene-silicone resin.

Claims (5)

RevendicationsClaims 1) Câble à faible coefficient de frottement, caractérisé en ce qu'il comporte autour de sa gaine externe (5) une gaine périphérique (6) de glissement, en matériau composite formé de matière plastique et de résine silicone, constituant un surgainage de ladite gaine externe.1) Cable with a low coefficient of friction, characterized in that it comprises around its outer sheath (5) a peripheral sheath (6) for sliding, of composite material formed of plastic material and of silicone resin, constituting an overglaze of said outer sheath. 2) Câble selon la revendication 1, caractérisé en ce que le matériau composite de ladite gaine périphérique (6) est en polyéthylène, à haut degré de polymérisation et résistance mécanique élevée, imprégné de résine silicone.2) Cable according to claim 1, characterized in that the composite material of said peripheral sheath (6) is made of polyethylene, with a high degree of polymerization and high mechanical strength, impregnated with silicone resin. 3) Câble selon les revendications 1 ou 2, caractérisé en ce que l'épaisseur de ladite gaine périphérique (6) est comprise entre 0,5 mm et lmm. 3) Cable according to claims 1 or 2, characterized in that the thickness of said peripheral sheath (6) is between 0.5 mm and lmm. 4) Procédé de fabrication d'un câble selon l'une des revendications 1 à 3, caractérisé en ce que l'on extrude à la suite l'une de l'autre sur la ligne de fabrication du câble sa gaine externe et sa gaine périphérique de glissement.4) A method of manufacturing a cable according to one of claims 1 to 3, characterized in that one extrudes one after the other on the cable manufacturing line its outer sheath and its sheath sliding device. 5) Dispositif de mise en oeuvre du procédé selon la revendication 4, caractérisé en ce qu'il comporte sur le trajet de l'âme du câble à revêtir une première extrudeuse alimentée en matériau de gainage externe, et en aval de celle-ci une seconde extrudeuse alimentée en matériau composite du surgainage de glissement. 5) Device for implementing the method according to claim 4, characterized in that it comprises on the path of the core of the cable to be coated a first extruder supplied with external sheathing material, and downstream thereof second extruder supplied with composite material from the sliding overglaze.
FR9103326A 1991-03-19 1991-03-19 CABLE WITH LOW COEFFICIENT OF FRICTION AND METHOD AND DEVICE FOR MANUFACTURING THE SAME. Expired - Fee Related FR2674364B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9103326A FR2674364B1 (en) 1991-03-19 1991-03-19 CABLE WITH LOW COEFFICIENT OF FRICTION AND METHOD AND DEVICE FOR MANUFACTURING THE SAME.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9103326A FR2674364B1 (en) 1991-03-19 1991-03-19 CABLE WITH LOW COEFFICIENT OF FRICTION AND METHOD AND DEVICE FOR MANUFACTURING THE SAME.

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FR2674364A1 true FR2674364A1 (en) 1992-09-25
FR2674364B1 FR2674364B1 (en) 1996-02-02

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6416813B1 (en) * 1998-08-19 2002-07-09 Pirelli Cables Y Sistemas, S.A. Method of manufacturing an electrical cable having a reduced coefficient of friction
EP0949635B1 (en) * 1998-04-09 2005-01-12 Pirelli Power Cables and Systems USA, LLC Pre-lubricated cable and method of manufacture
EP1899987A1 (en) 2005-05-24 2008-03-19 Southwire Company Electrical cable having a surface with reduced coefficient of friction
US7411129B2 (en) 2004-07-13 2008-08-12 Southwire Company Electrical cable having a surface with reduced coefficient of friction
US7557301B2 (en) 2004-09-28 2009-07-07 Southwire Company Method of manufacturing electrical cable having reduced required force for installation
US7749024B2 (en) 2004-09-28 2010-07-06 Southwire Company Method of manufacturing THHN electrical cable, and resulting product, with reduced required installation pulling force
US9200234B1 (en) 2009-10-21 2015-12-01 Encore Wire Corporation System, composition and method of application of same for reducing the coefficient of friction and required pulling force during installation of wire or cable
US9352371B1 (en) 2012-02-13 2016-05-31 Encore Wire Corporation Method of manufacture of electrical wire and cable having a reduced coefficient of friction and required pulling force
US9431152B2 (en) 2004-09-28 2016-08-30 Southwire Company, Llc Method of manufacturing electrical cable, and resulting product, with reduced required installation pulling force
US10023740B2 (en) 2009-03-18 2018-07-17 Southwire Company, Llc Electrical cable having crosslinked insulation with internal pulling lubricant
US10056742B1 (en) 2013-03-15 2018-08-21 Encore Wire Corporation System, method and apparatus for spray-on application of a wire pulling lubricant
US10325696B2 (en) 2010-06-02 2019-06-18 Southwire Company, Llc Flexible cable with structurally enhanced conductors
US10431350B1 (en) 2015-02-12 2019-10-01 Southwire Company, Llc Non-circular electrical cable having a reduced pulling force
US11328843B1 (en) 2012-09-10 2022-05-10 Encore Wire Corporation Method of manufacture of electrical wire and cable having a reduced coefficient of friction and required pulling force

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2185146A (en) * 1986-01-08 1987-07-08 Yazaki Corp Ignition cable
JPH01144504A (en) * 1987-11-30 1989-06-06 Fujikura Ltd Insulated cable

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2185146A (en) * 1986-01-08 1987-07-08 Yazaki Corp Ignition cable
JPH01144504A (en) * 1987-11-30 1989-06-06 Fujikura Ltd Insulated cable

Cited By (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0949635B1 (en) * 1998-04-09 2005-01-12 Pirelli Power Cables and Systems USA, LLC Pre-lubricated cable and method of manufacture
EP0981136B1 (en) * 1998-08-19 2004-04-14 Pirelli Cables y Sistemas, S.A. Electrical cable and method and equipment for the obtention thereof
US7053308B2 (en) 1998-08-19 2006-05-30 Pirelli Cables Y Sistemas S.A. Electrical cable having a reduced coefficient of friction
US6416813B1 (en) * 1998-08-19 2002-07-09 Pirelli Cables Y Sistemas, S.A. Method of manufacturing an electrical cable having a reduced coefficient of friction
US7411129B2 (en) 2004-07-13 2008-08-12 Southwire Company Electrical cable having a surface with reduced coefficient of friction
US11942236B2 (en) 2004-09-28 2024-03-26 Southwire Company, Llc Method of manufacturing electrical cable, and resulting product, with reduced required installation pulling force
US11842827B2 (en) 2004-09-28 2023-12-12 Southwire Company, Llc Method of manufacturing electrical cable, and resulting product, with reduced required installation pulling force
US7557301B2 (en) 2004-09-28 2009-07-07 Southwire Company Method of manufacturing electrical cable having reduced required force for installation
US7749024B2 (en) 2004-09-28 2010-07-06 Southwire Company Method of manufacturing THHN electrical cable, and resulting product, with reduced required installation pulling force
US8616918B2 (en) 2004-09-28 2013-12-31 Southwire Company Method of manufacturing electrical cable, and resulting product, with reduced required installation pulling force
US9142336B2 (en) 2004-09-28 2015-09-22 Southwire Company, Llc Method of manufacturing electrical cable, and resulting product, with reduced required installation pulling force
US10763009B2 (en) 2004-09-28 2020-09-01 Southwire Company, Llc Method of manufacturing electrical cable, and resulting product, with reduced required installation pulling force
US10706988B2 (en) 2004-09-28 2020-07-07 Southwire Company, Llc Method of manufacturing electrical cable, and resulting product, with reduced required installation pulling force
US9431152B2 (en) 2004-09-28 2016-08-30 Southwire Company, Llc Method of manufacturing electrical cable, and resulting product, with reduced required installation pulling force
US10763010B2 (en) 2004-09-28 2020-09-01 Southwire Company, Llc Method of manufacturing electrical cable, and resulting product, with reduced required installation pulling force
US10763008B2 (en) 2004-09-28 2020-09-01 Southwire Company, Llc Method of manufacturing electrical cable, and resulting product, with reduced required installation pulling force
US11776715B2 (en) 2004-09-28 2023-10-03 Southwire Company, Llc Method of manufacturing electrical cable, and resulting product, with reduced required installation pulling force
US11527339B2 (en) 2004-09-28 2022-12-13 Southwire Company, Llc Method of manufacturing electrical cable, and resulting product, with reduced required installation pulling force
US11355264B2 (en) 2004-09-28 2022-06-07 Southwire Company, Llc Method of manufacturing electrical cable, and resulting product, with reduced required installation pulling force
US11011285B2 (en) 2004-09-28 2021-05-18 Southwire Company, Llc Method of manufacturing electrical cable, and resulting product, with reduced required installation pulling force
EP1899988A2 (en) 2005-05-24 2008-03-19 Southwire Company Electrical cable having a surface with reduced coefficient of friction
EP1899987A1 (en) 2005-05-24 2008-03-19 Southwire Company Electrical cable having a surface with reduced coefficient of friction
US11046851B2 (en) 2009-03-18 2021-06-29 Southwire Company, Llc Electrical cable having crosslinked insulation with internal pulling lubricant
US10023740B2 (en) 2009-03-18 2018-07-17 Southwire Company, Llc Electrical cable having crosslinked insulation with internal pulling lubricant
US9200234B1 (en) 2009-10-21 2015-12-01 Encore Wire Corporation System, composition and method of application of same for reducing the coefficient of friction and required pulling force during installation of wire or cable
US11456088B1 (en) 2009-10-21 2022-09-27 Encore Wire Corporation System, composition and method of application of same for reducing the coefficient of friction and required pulling force during installation of wire or cable
US9458404B1 (en) 2009-10-21 2016-10-04 Encore Wire Corporation System, composition and method of application of same for reducing the coefficient of friction and required pulling force during installation of wire or cable
US10580551B1 (en) 2009-10-21 2020-03-03 Encore Wire Corporation System, composition and method of application of same for reducing the coefficient of friction and required pulling force during installation of wire or cable
US11783963B1 (en) 2009-10-21 2023-10-10 Encore Wire Corporation System, composition and method of application of same for reducing the coefficient of friction and required pulling force during installation of wire or cable
US10062475B1 (en) 2009-10-21 2018-08-28 Encore Wire Corporation System, composition and method of application of same for reducing the coefficient of friction and required pulling force during installation of wire or cable
US11101053B1 (en) 2009-10-21 2021-08-24 Encore Wire Corporation System, composition and method of application of same for reducing the coefficient of friction and required pulling force during installation of wire or cable
US10276279B1 (en) 2009-10-21 2019-04-30 Encore Wire Corporation System, composition and method of application of same for reducing the coefficient of friction and required pulling force during installation of wire or cable
US10325696B2 (en) 2010-06-02 2019-06-18 Southwire Company, Llc Flexible cable with structurally enhanced conductors
US10102947B1 (en) 2012-02-13 2018-10-16 Encore Wire Corporation Method of manufacture of electrical wire and cable having a reduced coefficient of friction and required pulling force
US10418156B1 (en) 2012-02-13 2019-09-17 Encore Wire Corporation Method of manufacture of electrical wire and cable having a reduced coefficient of friction and required pulling force
US10777338B1 (en) 2012-02-13 2020-09-15 Encore Wire Corporation Method of manufacture of electrical wire and cable having a reduced coefficient of friction and required pulling force
US9352371B1 (en) 2012-02-13 2016-05-31 Encore Wire Corporation Method of manufacture of electrical wire and cable having a reduced coefficient of friction and required pulling force
US10943713B1 (en) 2012-02-13 2021-03-09 Encore Wire Corporation Method of manufacture of electrical wire and cable having a reduced coefficient of friction and required pulling force
US11328843B1 (en) 2012-09-10 2022-05-10 Encore Wire Corporation Method of manufacture of electrical wire and cable having a reduced coefficient of friction and required pulling force
US10056742B1 (en) 2013-03-15 2018-08-21 Encore Wire Corporation System, method and apparatus for spray-on application of a wire pulling lubricant
US10680418B1 (en) 2013-03-15 2020-06-09 Encore Wire Corporation System, method and apparatus for spray-on application of a wire pulling lubricant
US11522348B1 (en) 2013-03-15 2022-12-06 Encore Wire Corporation System, method and apparatus for spray-on application of a wire pulling lubricant
US11444440B1 (en) 2013-03-15 2022-09-13 Encore Wire Corporation System, method and apparatus for spray-on application of a wire pulling lubricant
US10847955B1 (en) 2013-03-15 2020-11-24 Encore Wire Corporation System, method and apparatus for spray-on application of a wire pulling lubricant
US10431350B1 (en) 2015-02-12 2019-10-01 Southwire Company, Llc Non-circular electrical cable having a reduced pulling force
US10741310B1 (en) 2015-02-12 2020-08-11 Southwire Company, Llc Non-circular electrical cable having a reduced pulling force
US11348707B1 (en) 2015-02-12 2022-05-31 Southwire Company, Llc Method of manufacturing a non-circular electrical cable having a reduced pulling force

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