EP1177561B1 - Cable de telecommunication, et notamment cable de raccordement d'abonne, de type autoporte - Google Patents
Cable de telecommunication, et notamment cable de raccordement d'abonne, de type autoporte Download PDFInfo
- Publication number
- EP1177561B1 EP1177561B1 EP01907752A EP01907752A EP1177561B1 EP 1177561 B1 EP1177561 B1 EP 1177561B1 EP 01907752 A EP01907752 A EP 01907752A EP 01907752 A EP01907752 A EP 01907752A EP 1177561 B1 EP1177561 B1 EP 1177561B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cable
- sheath
- tube
- pair
- cable according
- 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 - Lifetime
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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
- H01B7/08—Flat or ribbon cables
- H01B7/0869—Flat or ribbon cables comprising one or more armouring, tensile- or compression-resistant elements
-
- 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
- H01B7/183—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments forming part of an outer sheath
Definitions
- the present invention relates to a new cable structure telecommunication.
- a first type of cable is a cable that has a sheath form in 8 of which a first part is overmolded on a carrier metallic and of which a second part defines a tube which receives a pair or a quarter of twisted copper wires.
- Such a structure has the disadvantage of being of a size and of significant weight, at the same time as a high cost.
- a second type of cable also known is a cable presenting a sheath of substantially flat shape inside which extend on the one hand a central metal carrier and on the other hand, on each side of this carrier, pairs of copper wires.
- these cables like the cables in 8, present the disadvantage of requiring to bring the metal carriers back to the ground at the level of the houses, in order to evacuate the possible currents of lightning in these.
- Cables of this type are currently used as subscriber connection in France.
- These cables comprise carriers of dielectric material placed on either side of metal conductors individually insulated by envelopes. These dielectric carriers and insulated conductors are embedded in a sheath plastic material that does not allow easy access to drivers.
- This structure does not allow transmissions with flows high. It is also not compatible with the use of drivers twisted metal which it would not allow stripping and with which would pose many problems of realization.
- the invention aims to overcome the problems posed by the different structures presented above by proposing a cable capable to transmit high frequency signals, which in addition allows for easily disassemble drivers while allowing good mechanical protection of these.
- a telecommunication cable and in particular a cable subscriber connection with a sheath, as well as two carriers in a dielectric material and at least one pair of wires which extend in said sheath, characterized in that said sheath has a central tube on each side of which are arranged the two carriers and to inside which said pair of wires extends, the wires said pair being twisted wires.
- metal conductors - arranged in the tube - are not embedded in the sheath, which facilitates their disassembly compared to the rest of the sheath.
- the structure of the sheath allows the use of twisted conductors.
- this configuration allows advantageously to limit the tensile stresses on the conductors - which is particularly important in the case of twisted conductors when you want to be able to reach high speeds - and to postpone constraints on carriers by distributing them symmetrically with respect to to the tube.
- the diameter outside of the central tube - ie its height - is less than the height of the sheath at the level of the carriers. This characteristic allows protect the conductors contained in the tube in case of compression.
- the cable of FIG. 1 comprises a sheath 1, which defines on the one hand a central tube 2 in which extends a pair of twisted wires 6 or a fourth (ie a set of four metal wires twisted), and on the other hand two sub-sheaths 3 and 4 which are on both sides of this central tube 2 and in which there extend carriers 5.
- the carriers 5 have the characteristic of being not in metallic materials but in dielectric materials.
- these carriers are in aramid locks, or glass wicks.
- a carrier 5 in glass wicks is for example a carrier of 2 mm wide and 0.19 mm thick, capable of supporting 55 daN in traction.
- a carrier 5 in aramid locks would be of dimensions and similar mechanical characteristics.
- the twisted metallic wires 6 are, in a manner known per se, insulated copper wires.
- These strands are, for example, of external diameter between 0.4 and 0.8mm, an outer diameter of 0.6mm being preferred.
- the insulation used for these copper wires is advantageously a low density, medium density or high density polyethylene.
- the outer diameter of the copper wires 6 with their insulation is included between 0.65 mm and 1.30 mm, an outer diameter of 0.96 mm being preferred (this preferred outer diameter corresponding to the outer diameter denuded of 0.6 mm indicated above).
- Twisted wires have an assembly pitch that can be built or which can be alternated (technique sZ).
- the pair of copper wires can be surrounded by an intermediate envelope (not shown) which ensures a thermal and / or mechanical protection.
- This envelope is for example consisting of a polyester ribbon which is surrounded by the pair of wires 6.
- Sheath 1 is advantageously made of polyolefin.
- it is preferably PVC or polyethylene and more particularly preferably in high density polyethylene (density greater than 0.94), to meet compatibility constraints with the insulation of copper wires 6, as well as to meet the requirements of aging.
- the central tube 2 has an inner diameter which corresponds substantially to the diameter of the twisted assembly formed by the wires metal 6.
- the central tube 2 is filled by a product 9, such as petroleum jelly, in which the yarns 6 are drowned and which ensures or contributes to the sealing of the cable.
- a product 9 such as petroleum jelly
- the width of a cable conforming to such a structure (ie the distance between the points farthest from sheath 3 and sheath 4) is 7.4 mm ⁇ 0.4 mm, while its height (ie its size perpendicular to the plane passing through the axes of the carriers 5 and the tube 2) is 3.5mm ⁇ 0.4mm.
- the sheath 1 has an elongation at break greater than 300%, the breaking force being greater than 18 MPa.
- the central tube 2 of the sheath 1 has a hexagonal outer shape, while the sub-sheaths 3 and 4 have elliptical shapes with a major axis perpendicular to the plane passing through the axes of the carriers 5 and the central tube 2.
- central tube 2 and / or the sub-sheaths 3 and 4 may be of round shape.
- the cable that has just been described is realized with the techniques conventionally known to those skilled in the art and in particular by extrusion of the sheath 1 on the carriers 5 and the metal wires 6.
- sheath 1 may have another external shape than that represented in FIG. 1 and in particular a sectional shape substantially rectangular.
- the sectional shape shown in FIG. the advantage of protecting the tube 2 and the pair of copper wires 6 in its inside against compression efforts.
- the height of the sub-sheaths 3 and 4 is greater than that of the tube 2.
- the tube 2 is located between the two planes that are tangent to both sub-sheaths 3 and 4 and is therefore protected against the efforts of compression exerted on the cable perpendicular to the plane passing by the axes of the carriers 5 and the central tube 2.
- FIGS. 3a and 3b Such means have been illustrated in FIGS. 3a and 3b with a cable C according to the invention. They have a sheath 8 in which engages the loop-shaped cable C and a corner piece 7 which is then pushed into the sheath and which bears on the slices of the cable.
- the areas by which the tube 2 is connected to the sub-sheaths 3 and 4 are preferably from a height I less than the minimum thickness e of the tube 2.
- Such areas thus define the tear tabs which allow to simply tear the two carriers sheathed part central to access, without special tools, the pair of wires.
- these tear tabs are less than 0.4 mm high.
- connection cable subscriber which links a house to a pole of a distribution network
- non-metallic carriers allows greater lightness of structure, as well as optimized cost.
- the proposed cable may be pulled into homes, unlike the connection cables known to date.
Landscapes
- Communication Cables (AREA)
- Insulated Conductors (AREA)
- Interface Circuits In Exchanges (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Multi-Conductor Connections (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Description
- la figure 1 est une représentation schématique en vue en coupe d'un câble conforme à un premier mode de réalisation possible pour l'invention;
- la figure 2 est une représentation schématique en vue en coupe d'un câble conforme à un deuxième mode de réalisation possible pour l'invention ;
- les figures 3a et 3b sont des représentations schématiques en vue de dessus illustrant un type de fixation couramment utilisée avec des câbles d'abonnés. ;
- la figure 4 est une représentation similaire à celle de la figure 1 illustrant un autre mode de réalisation possible de l'invention.
Claims (12)
- Câble de télécommunication comportant une gaine (1), ainsi que deux porteurs (5) en un matériau diélectrique et au moins une paire de fils métalliques (6) qui s'étendent dans ladite gaine, caractérisé en ce que ladite gaine présente un tube (2) central de part et d'autre duquel sont disposés les deux porteurs et à l'intérieur duquel s'étend ladite paire de fils métalliques (6), les fils métalliques (6) de ladite paire étant des fils torsadés.
- Câble selon la revendication 1, caractérisé en ce qu'un porteur diélectrique (5) est en mèches d'aramide ou mèches de verre.
- Câble selon l'une des revendications précédentes, caractérisé en ce que la gaine (1) est en polyoléfine.
- Câble selon la revendication 3, caractérisé en ce que la gaine est en PVC ou en polyéthylène.
- Câble selon la revendication 4, caractérisé en ce que la gaine (1) est en polyéthylène haute densité.
- Câble selon l'une des revendications précédentes, caractérisé en ce que la ou les paire(s) de fils métalliques est (sont) entourée(s) par une enveloppe qui assure une protection thermique et/ou mécanique.
- Câble selon la revendication 6, caractérisé en ce que cette enveloppe est en un ruban de polyester dont on entoure la ou les paire(s) de fils métalliques.
- Câble selon l'une des revendications précédentes, caractérisé en ce que le tube est rempli par une gelée dans laquelle les fils métalliques sont noyés et qui assure ou contribue à l'étanchéité du câble.
- Câble selon l'une des revendications précédentes, caractérisé en ce que les axes des porteurs (5) sont centrés sur un même plan que l'axe du tube (2) et en ce que la hauteur des sous-gaines qui entourent les porteurs (5) de part et d'autre du tube (2) est supérieure à la hauteur externe du tube (2).
- Câble selon l'une des revendications 2 à 9, caractérisé en ce que les zones par lesquelles le tube (2) qui reçoit la ou les paire(s) de fils métalliques est relié aux sous-gaines (3, 4) dans lesquelles sont disposés les porteurs de part et d'autre dudit tube sont d'une hauteur inférieure à l'épaisseur minimale du tube.
- Câble de raccordement d'abonné comportant une gaine (1), ainsi qu'au moins de deux porteurs (5) et au moins une paire de fils métalliques (6) qui s'étendent dans ladite gaine, caractérisé en ce que ledit câble est un câble de télécommunication selon l'une des revendications précédentes.
- Câble de télécommunication pour la transmission de signaux haute fréquence, caractérisé en ce qu'il est constitué par un câble selon l'une des revendications 1 à 10.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0001728 | 2000-02-11 | ||
FR0001728A FR2805096B1 (fr) | 2000-02-11 | 2000-02-11 | Cable de telecommunication, et notamment cable de raccordement d'abonne, de type autoporte |
PCT/FR2001/000386 WO2001059792A1 (fr) | 2000-02-11 | 2001-02-09 | Cable de telecommunication, et notamment cable de raccordement d'abonne, de type autoporte |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1177561A1 EP1177561A1 (fr) | 2002-02-06 |
EP1177561B1 true EP1177561B1 (fr) | 2004-10-13 |
Family
ID=8846914
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01907752A Expired - Lifetime EP1177561B1 (fr) | 2000-02-11 | 2001-02-09 | Cable de telecommunication, et notamment cable de raccordement d'abonne, de type autoporte |
Country Status (12)
Country | Link |
---|---|
EP (1) | EP1177561B1 (fr) |
AT (1) | ATE279777T1 (fr) |
AU (1) | AU3564301A (fr) |
DE (1) | DE60106345D1 (fr) |
DZ (1) | DZ3143A1 (fr) |
ES (1) | ES2228811T3 (fr) |
FR (1) | FR2805096B1 (fr) |
MA (1) | MA25350A1 (fr) |
OA (1) | OA11925A (fr) |
PT (1) | PT1177561E (fr) |
TN (1) | TNSN01023A1 (fr) |
WO (1) | WO2001059792A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040211571A1 (en) * | 2003-04-23 | 2004-10-28 | Moreira Oswaldo M. | Control line protector |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4761053A (en) * | 1985-08-28 | 1988-08-02 | American Telephone And Telegraph Company, At&T Bell Laboratories | Communications transmission media |
US5155304A (en) * | 1990-07-25 | 1992-10-13 | At&T Bell Laboratories | Aerial service wire |
-
2000
- 2000-02-11 FR FR0001728A patent/FR2805096B1/fr not_active Expired - Lifetime
-
2001
- 2001-02-09 ES ES01907752T patent/ES2228811T3/es not_active Expired - Lifetime
- 2001-02-09 PT PT01907752T patent/PT1177561E/pt unknown
- 2001-02-09 AU AU35643/01A patent/AU3564301A/en not_active Abandoned
- 2001-02-09 OA OA1200100256A patent/OA11925A/fr unknown
- 2001-02-09 EP EP01907752A patent/EP1177561B1/fr not_active Expired - Lifetime
- 2001-02-09 DZ DZ013143A patent/DZ3143A1/fr active
- 2001-02-09 TN TNTNSN01023A patent/TNSN01023A1/fr unknown
- 2001-02-09 WO PCT/FR2001/000386 patent/WO2001059792A1/fr active IP Right Grant
- 2001-02-09 DE DE2001606345 patent/DE60106345D1/de not_active Expired - Lifetime
- 2001-02-09 AT AT01907752T patent/ATE279777T1/de not_active IP Right Cessation
- 2001-10-11 MA MA26353A patent/MA25350A1/fr unknown
Also Published As
Publication number | Publication date |
---|---|
TNSN01023A1 (fr) | 2003-04-03 |
ATE279777T1 (de) | 2004-10-15 |
MA25350A1 (fr) | 2001-12-31 |
FR2805096A1 (fr) | 2001-08-17 |
ES2228811T3 (es) | 2005-04-16 |
AU3564301A (en) | 2001-08-20 |
WO2001059792A1 (fr) | 2001-08-16 |
EP1177561A1 (fr) | 2002-02-06 |
DE60106345D1 (de) | 2004-11-18 |
FR2805096B1 (fr) | 2004-05-28 |
PT1177561E (pt) | 2005-02-28 |
OA11925A (fr) | 2006-04-12 |
DZ3143A1 (fr) | 2001-08-16 |
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