FR2498001A1 - REINFORCING ELEMENT OF A CABLE, IN PARTICULAR A FIBER OPTIC COMMUNICATION CABLE - Google Patents

REINFORCING ELEMENT OF A CABLE, IN PARTICULAR A FIBER OPTIC COMMUNICATION CABLE Download PDF

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Publication number
FR2498001A1
FR2498001A1 FR8200412A FR8200412A FR2498001A1 FR 2498001 A1 FR2498001 A1 FR 2498001A1 FR 8200412 A FR8200412 A FR 8200412A FR 8200412 A FR8200412 A FR 8200412A FR 2498001 A1 FR2498001 A1 FR 2498001A1
Authority
FR
France
Prior art keywords
cable
layer
tubular element
fiber optic
communication cable
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Withdrawn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
FR8200412A
Other languages
French (fr)
Inventor
Colin Stanley Parfree
Peter Worthington
David Ian Strong
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of FR2498001A1 publication Critical patent/FR2498001A1/en
Withdrawn legal-status Critical Current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
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4415—Cables for special applications
    • G02B6/4427—Pressure resistant cables, e.g. undersea cables

Abstract

ELEMENT TUBULAIRE RESISTANT A LA COMPRESSION ET A LA TRACTION POUR CONSTITUER UNE ENVELOPPE EXTERNE DE RENFORCEMENT D'UN CABLE DE COMMUNICATION. IL COMPREND DEUX COUCHES DE FILS TORONNES CONSTITUANT UN CYLINDRE CREUX PRATIQUEMENT CONTINU DONT LE DIAMETRE INTERNE 3 PERMET LE LOGEMENT DU CABLE A RENFORCER. CHAQUE COUCHE EST FAITE DE FILS ALTERNES 1, 2 AYANT LES PREMIERS 1 UNE SECTION RONDE ET LES SECONDS 2 UNE SECTION ETRANGLEE, ET LES FILS 2 DE LA SECONDE COUCHE ONT UNE PLUS GRANDE LARGEUR POUR AMELIORER LE MAINTIEN DE CETTE COUCHE SUR LA PREMIERE. LES FILS PEUVENT ETRE ENROULES EN HELICE, A GAUCHE POUR UNE COUCHE ET A DROITE POUR L'AUTRE, AFIN QUE L'ELEMENT RESISTE A LA TORSION. APPLICATION PRINCIPALE AUX CABLES DE COMMUNICATION A FIBRES OPTIQUES.TUBULAR ELEMENT RESISTANT TO COMPRESSION AND TENSILE TO CONSTITUTE AN EXTERNAL ENCLOSURE FOR REINFORCING A COMMUNICATION CABLE. IT INCLUDES TWO LAYERS OF STRANDED WIRES CONSTITUTING A PRACTICALLY CONTINUOUS HOLLOW CYLINDER WHOSE INTERNAL DIAMETER 3 ALLOWS THE HOUSING OF THE CABLE TO BE REINFORCED. EACH LAYER IS MADE OF ALTERNATE YARNS 1, 2 HAVING THE FIRST 1 A ROUND SECTION AND THE SECOND 2 A STRANGLE SECTION, AND THE SECOND LAYER 2 YARNS HAVE A GREATER WIDTH TO IMPROVE THE HOLDING OF THAT LAYER ON THE FIRST. THE WIRES CAN BE WOUND IN A HELIX, LEFT FOR ONE LAYER AND RIGHT FOR THE OTHER, SO THAT THE ELEMENT IS TORSION RESISTANT. MAIN APPLICATION TO FIBER OPTIC COMMUNICATION CABLES.

Description

La présente invention concerne un élément tubulaire résistant à laThe present invention relates to a tubular element resistant to

compression et à la traction pour supporter un câble  compression and traction to support a cable

de communication tel qu'un câble à fibres optiques.  such as an optical fiber cable.

Les câbles installés dans un milieu défavorable, par exemple les câbles sous-marins, sont habituellement munis d'éléments de renforcement qui absorbent la majorité des contraintes  Cables installed in an adverse environment, such as submarine cables, are usually provided with reinforcing elements that absorb most of the constraints

de traction et de compression afin de limiter la fatigue des conducteurs.  traction and compression to limit driver fatigue.

D'une importance non négligeable pour protéger des conducteurs électriques métalliques, cette pratique est encore plus utile dans  Significantly important to protect metallic electrical conductors, this practice is even more useful in

le cas des fibres optiques.the case of optical fibers.

Un objet de l'invention est donc la réalisation d'un tel tube O utiliser avec un câble de communication, ce dernier étant  An object of the invention is therefore the production of such a tube O to be used with a communication cable, the latter being

notamment mais pas obligatoirement un faisceau de fibres optiques.  in particular but not necessarily a bundle of optical fibers.

Un élément tubulaire supportant les charges de traction et de compression d'un câble de communication est constitué, selon la présente invention, par au moins une couche de fils adjacents toronnés pour former un cylindre creux pratiquement continu dont le  A tubular element supporting the tensile and compressive loads of a communication cable is constituted, according to the present invention, by at least one layer of adjacent wires stranded to form a substantially continuous hollow cylinder whose

diamètre interne permet le logement du câble à supporter.  internal diameter allows the housing of the cable to support.

Selon une caractéristique plus particulière de l'invention, un tel élément porteur pour câble de communication à fibres optiques comprend au moins une couche de fils adjacents dont la section est alternativement ronde et étranglée et qui sont toronnés ensemble pour constituer un cylindre creux pratiquement continu dont le diamètre  According to a more particular characteristic of the invention, such a carrier element for optical fiber communication cable comprises at least one layer of adjacent wires whose section is alternately round and strangled and which are stranded together to form a substantially continuous hollow cylinder which the diameter

interne permet le logement du câble à supporter.  internal allows the housing of the cable to support.

L'invention sera mieux comprise à la lecture de la  The invention will be better understood on reading the

description qui va suivre, faite à titre d'exemple non limitatif, en  description which will follow, given as a non-limiting example, in

se reportant à la figure annexée qui représente, en coupe radiale,  Referring to the attached figure which represents, in radial section,

un élément tubulaire conforme à l'invention.  a tubular element according to the invention.

Cet élément tubulaire comprend deux couches identiques formées d'une alternance de fils à section ronde 1 et de fils à section étranglée 2. L'étranglement des fils 2 a une forme circulaire qui permet à un fil 1 de s'encastrer presque complètement entre les fils étranglés qui l'entourent, de sorte que la surface cylindrique obtenue est pratiquement lisse. Comme le représente la figure,  This tubular element comprises two identical layers formed of an alternation of round section wires 1 and strangled section wires 2. The throat of the wires 2 has a circular shape which allows a wire 1 to fit almost completely between the wires. strangled wires that surround it, so that the cylindrical surface obtained is virtually smooth. As the figure shows,

la deuxième couche comporte en outre des fils 2 de plus grande largeur.  the second layer further comprises son 2 of greater width.

Le câble à supporter s'adapte dans la cavité longitudinale 3  The cable to be supported fits into the longitudinal cavity 3

déterminée au centre des deux couches de fils.  determined in the center of the two layers of wires.

Il est à noter que les fils 2 peuvent avoir une section de forme différente, la forme représentée constituant cependant une réalisation préférentielle. Les fils peuvent aussi être enroulés en hélice, à gauche pour une couche et à droite pour l'autre, ce qui  It should be noted that the son 2 may have a section of different shape, the form shown however constituting a preferred embodiment. The wires can also be helically wound, left for one layer and right for the other, which

fournit un tube résistant à la torsion.  provides a torsion resistant tube.

Quand l'élément tubulaire contient un câble à fibres optiques, il est préférable que les fibres ne soient pas tendues pour restes à l'abri de toute contrainte. Dans ce but, chaque fibre est  When the tubular element contains a fiber optic cable, it is preferable that the fibers are not stretched for remains away from any stress. For this purpose, each fiber is

un peu plus longue que l'élément porteur.  a little longer than the carrying element.

Si nécessaire, la couche extérieure peut être entourée  If necessary, the outer layer can be surrounded

d'une ou plusieurs couches de matériau résistant à l'eau.  one or more layers of water resistant material.

Il est bien évident que la description qui précède n'a été  It is obvious that the foregoing description has been

donnée qu'à titre d'exemple non limitatif et que d'autres variantes  given as a non-limitative example and that other variants

peuvent être envisagées sans sortir pour autant du cadre de l'invention.  can be envisaged without departing from the scope of the invention.

Claims (4)

REVENDICATIONS 1. Elément tubulaire résistant à la compression et à la traction pour supporter un câble de communication, caractérisé par le fait qu'il comprend au moins une couche de fils adjacents (1,2) toronnés selon un cylindre creux pratiquement continu dont le diamètre interne (3) permet le logement du câble à supporter.  A tubular member resistant to compression and traction to support a communication cable, characterized in that it comprises at least one layer of adjacent wires (1,2) stranded in a substantially continuous hollow cylinder whose internal diameter (3) allows the housing of the cable to be supported. 2. Elément tubulaire résistant à la compression et à la traction pour supporter un câble de communication tel qu'un câble à fibres optiques, caractérisé par le fait qu'il comprend au moins une couche de fils adjacents dont la section est alternativement ronde (1) et étranglée (2) et qui sont toronnés ensemble pour former un cylindre creux pratiquement continu dont le diamètre interne (3) permet le2. tubular element resistant to compression and traction to support a communication cable such as an optical fiber cable, characterized in that it comprises at least one layer of adjacent wires whose section is alternately round (1 ) and strangulated (2) and which are stranded together to form a substantially continuous hollow cylinder whose inner diameter (3) allows the logement du câble à supporter.cable housing to support. 3. Elément tubulaire conforme à la revendication 1 ou 2, caractérisé par le fait qu'il comprend au moins deux couches de fils  3. tubular element according to claim 1 or 2, characterized in that it comprises at least two layers of son toronnés.stranded. 4. Elément tubulaire conforme à la revendication 3, caractérisé par le fait que les fils des couches adjacentes sont toronrns  4. tubular element according to claim 3, characterized in that the son of the adjacent layers are toronrns hélicoldalement en sens inverse.helicoldally in the opposite direction.
FR8200412A 1981-01-13 1982-01-13 REINFORCING ELEMENT OF A CABLE, IN PARTICULAR A FIBER OPTIC COMMUNICATION CABLE Withdrawn FR2498001A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8100977A GB2090995B (en) 1981-01-13 1981-01-13 Pressure-resistant cable strength member

Publications (1)

Publication Number Publication Date
FR2498001A1 true FR2498001A1 (en) 1982-07-16

Family

ID=10518950

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8200412A Withdrawn FR2498001A1 (en) 1981-01-13 1982-01-13 REINFORCING ELEMENT OF A CABLE, IN PARTICULAR A FIBER OPTIC COMMUNICATION CABLE

Country Status (5)

Country Link
JP (1) JPS5924612B2 (en)
AU (1) AU547360B2 (en)
ES (1) ES262573Y (en)
FR (1) FR2498001A1 (en)
GB (1) GB2090995B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0099745A1 (en) * 1982-07-19 1984-02-01 BICC Public Limited Company An improved flexible elongate body

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8425376D0 (en) * 1984-10-08 1984-11-14 Ass Elect Ind Optical cables
GB2199961B (en) * 1987-01-13 1990-09-26 Stc Plc Optical fibre cable containing non-circular cross section wires.
ES2019055T3 (en) * 1988-12-05 1994-02-16 Kupferdraht Isolierwerk Ag SELF-SUPPORTING OPTICAL CABLE.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1071556A (en) * 1953-02-27 1954-09-02 Silec Liaisons Elec Closed metal cable, providing an electrical connection
FR1409686A (en) * 1964-09-29 1965-08-27 English Electric Co Ltd Lifting cable
FR2390816A1 (en) * 1977-05-13 1978-12-08 Bicc Ltd OVERHEAD CABLE FOR ELECTRICAL TRANSMISSION SYSTEM AND TRANSMISSION SYSTEM INCLUDING SUCH CABLE
FR2444282A1 (en) * 1978-12-12 1980-07-11 Cables De Lyon Geoffroy Delore UNDERWATER CABLE WITH OPTICAL FIBERS FOR TELECOMMUNICATIONS, AND METHOD AND DEVICE FOR THE PRODUCTION THEREOF

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1071556A (en) * 1953-02-27 1954-09-02 Silec Liaisons Elec Closed metal cable, providing an electrical connection
FR1409686A (en) * 1964-09-29 1965-08-27 English Electric Co Ltd Lifting cable
FR2390816A1 (en) * 1977-05-13 1978-12-08 Bicc Ltd OVERHEAD CABLE FOR ELECTRICAL TRANSMISSION SYSTEM AND TRANSMISSION SYSTEM INCLUDING SUCH CABLE
FR2444282A1 (en) * 1978-12-12 1980-07-11 Cables De Lyon Geoffroy Delore UNDERWATER CABLE WITH OPTICAL FIBERS FOR TELECOMMUNICATIONS, AND METHOD AND DEVICE FOR THE PRODUCTION THEREOF

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0099745A1 (en) * 1982-07-19 1984-02-01 BICC Public Limited Company An improved flexible elongate body

Also Published As

Publication number Publication date
JPS5924612B2 (en) 1984-06-11
JPS57138809A (en) 1982-08-27
ES262573Y (en) 1983-07-01
AU7863681A (en) 1982-07-22
AU547360B2 (en) 1985-10-17
ES262573U (en) 1983-01-01
GB2090995B (en) 1984-06-06
GB2090995A (en) 1982-07-21

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