EP0942440A1 - Câble souple à faible diaphonie - Google Patents

Câble souple à faible diaphonie Download PDF

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Publication number
EP0942440A1
EP0942440A1 EP99400590A EP99400590A EP0942440A1 EP 0942440 A1 EP0942440 A1 EP 0942440A1 EP 99400590 A EP99400590 A EP 99400590A EP 99400590 A EP99400590 A EP 99400590A EP 0942440 A1 EP0942440 A1 EP 0942440A1
Authority
EP
European Patent Office
Prior art keywords
conductors
cord
cable according
cords
pairs
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Withdrawn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
EP99400590A
Other languages
German (de)
English (en)
French (fr)
Inventor
Harold Knop
Daniel Prudhon
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 SA
Original Assignee
Alcatel CIT SA
Alcatel 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 CIT SA, Alcatel SA filed Critical Alcatel CIT SA
Publication of EP0942440A1 publication Critical patent/EP0942440A1/fr
Withdrawn legal-status Critical Current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
    • H01B11/00—Communication cables or conductors
    • H01B11/02—Cables with twisted pairs or quads

Definitions

  • the invention relates to a cable of electrical transmission conductors of information.
  • each pair of conductors The most common solution for shielding each pair of conductors is to arrange a metallic or metallized ribbon in a helix around each of these pairs, the cable being formed by assembling the shielded pairs in the same sheath protection.
  • the operation of individual shielding of the pairs is slow and delicate to put in action.
  • the shields individual pairs must be removed to access the conductors, making delicate connection operation usually carried out on site.
  • the invention provides a flexible cable having good insulation properties between conductors or between pairs and which, in addition, is of realization and use particularly simple.
  • the invention relates, according to a first of its aspects, to a cable for transmission of information which is characterized in that it comprises a central element in the form of a flexible cord and in that the conductors or pairs of conductors at isolate from each other are separated by peripheral cords, also flexible, which are distributed around the central cord, the assembly being maintained thanks to the peripheral sheath.
  • the cords are for example made of an insulating material such as polypropylene.
  • the central cord and the peripheral cords delimit compartments separating the conductors or the pairs.
  • the cords are deformable so as to constitute a cable jam.
  • the cords that originally had a circular section deform to fill the gaps between the conductors or pairs. In this way, the space is minimized, that is to say the external diameter of the cable.
  • the cords are for example made up of fibers.
  • the assembly is preferably surrounded by an external shielding, such as a polyester tape covered with aluminum and possibly a metallic braid, example in tinned copper.
  • This external shielding is covered by a sheath, by example in flame retardant polyolefin.
  • the cords can also be metallized so as to improve the shielding and therefore increase the crosstalk loss.
  • Such a cable can be manufactured with the machines normally used, without that it is necessary to modify these machines and without it being necessary to reduce the manufacturing speeds. Indeed, the installation of the cords is carried out in the same way as the assembly of conductors or pairs.
  • the invention relates to a cable for the transmission of information which is characterized in that it comprises at least one cord flexible and deformable in such a way that when the peripheral sheath surrounds the conductors (or pairs of conductors), these conductors exert pressure cells in which the conductors or pairs are housed.
  • the cord can also consist of fibers. It can also be metallized to form a shield, at the same time as the outer shield.
  • the information transmission cable 10 comprises four pairs of conductors 12, 14, 16 and 18 respectively.
  • Each pair for example that of reference 12, conventionally comprises two insulated conductors, 12 1 and 12 2 respectively and a sheath 12 3 enclosing the pair of conductors.
  • the pairs of conductors are isolated from each other by compartments 13, 15, 17 and 19 respectively delimited, on the one hand, by a cord central 20 and, on the other hand, by four peripheral cords respectively 22, 24, 26 and 28 applied against the central cord.
  • These central and peripheral cords are in a flexible insulating material, such as polypropylene.
  • These cords are, in example, made of fibers and are deformable.
  • the central bead 20 is, before deformation, of section circular with a diameter of about 2.5 mm, while the peripheral cords 22 to 28 are, also before deformation, of circular section with a diameter lower, of the order of 1.5 mm.
  • the peripheral cords 22 to 28 are applied against the central cord 20. All cords and pairs are held by the sheath outer 30.
  • the latter comprises, on the one hand, a ribbon 32 of polyester covered of aluminum, on the other hand, around the ribbon 32, a braid 34 of tinned copper and, on the other finally, an external coating 36 made of flame-retardant polyolefin.
  • the conductors apply pressure against the central cord and the cords peripheral devices.
  • the cords deform and partially fill the gaps or gaps between the pairs. In this way, the cords form a blockage which tends to spread in the volume inside the ribbon. Most of the volume is occupied by the pairs of conductors which are less deformable.
  • the cable outside diameter is therefore not determined by the original diameters of the central and peripheral cords.
  • each conductor has a core in 0.51mm diameter copper and 1.1mm polyethylene outer insulation diameter, with a central cord of 2.5 mm starting diameter and cords devices with a 1.5 mm initial diameter, we found that we could obtain excellent transmission qualities with a crosstalk of 50 dB at 200 Mhz.
  • the origin of this performance comes, on the one hand, from the separation into compartments, and, on the other part, improvement of the longitudinal regularity of the impedance.
  • the cable according to the invention is easy to connect because it is not necessary to remove a tape on each pair or on each conductor. Above all, it presents a great flexibility because the separation elements, formed by cords, are flexible.
  • the relative distances between pairs are determined, on the one hand, by the dimensions of the central cord, and on the other hand, by the dimensions of the cords peripheral devices.
  • the impedance is regular over the length of the cable.
  • the number of peripheral cords is at least equal to the number of pairs. he can also be greater than 4.
  • each compartment not a pair, but a single conductor.
  • the cable can be used for any type of application and, in particular, in the when you need a flexible cable, such as between a wall outlet and a device to be connected such as a computer.
  • FIG. 2 The embodiment of the invention which is shown in Figure 2 is distinguishes from that shown in FIG. 1 by the fact that only one bead is provided deformable and flexible 50.
  • the peripheral sheath 52 When the peripheral sheath 52 is installed around the assembly of the cord 50 - which, originally, was of circular section - and pairs of conductors 54 and 56 the pressure exerted by the sheath 52 on the pairs 54 and 56 is transmitted to the deformable cord 50 and causes the formation of cells 60 and 62 in which are kept these pairs 54 and 56.
  • the pairs 54 and 56 are isolated relative to each other and are held in place, which provides the same advantages as in the embodiment of FIG. 1, namely a minimization of crosstalk, low dispersions of impedances during fabrication and regularity of the impedance in the longitudinal direction for the same cable.
  • the cord 50 can be made of fiber insulating and can be metallized.
  • the cord (s) can (can) also be made with textile fibers, for example dried cotton fibers. Drying limits the value of the dissipation factor. In general, we will use a material not polar.
EP99400590A 1998-03-12 1999-03-11 Câble souple à faible diaphonie Withdrawn EP0942440A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9803052A FR2776120B1 (fr) 1998-03-12 1998-03-12 Cable souple a faible diaphonie
FR9803052 1998-03-12

Publications (1)

Publication Number Publication Date
EP0942440A1 true EP0942440A1 (fr) 1999-09-15

Family

ID=9523972

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99400590A Withdrawn EP0942440A1 (fr) 1998-03-12 1999-03-11 Câble souple à faible diaphonie

Country Status (4)

Country Link
US (1) US6342678B1 (es)
EP (1) EP0942440A1 (es)
FR (1) FR2776120B1 (es)
NO (1) NO991209L (es)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1030315A2 (de) * 1999-02-19 2000-08-23 Kerpenwerk GmbH & Co Datenkabel und Verfahren zur Herstellung eines Datenkabels
WO2001029849A1 (en) * 1999-10-16 2001-04-26 Raydex/Cdt Ltd. Cables including fillers
US7550674B2 (en) 2007-02-22 2009-06-23 Nexans UTP cable
EP1157393B2 (en) † 1999-02-25 2013-02-27 Cable Design Technologies, Inc. Multi-pair data cable with configurable core filling and pair separation
EP2388788A3 (en) * 2000-05-15 2013-04-17 TYCO Electronics Corporation Vapor proof high speed communications cable and method of manufacturing the same

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6800811B1 (en) 2000-06-09 2004-10-05 Commscope Properties, Llc Communications cables with isolators
US20050061536A1 (en) * 2003-09-19 2005-03-24 Siemens Medical Solutions Usa, Inc. Reduced crosstalk ultrasound cable
US7115815B2 (en) * 2003-10-31 2006-10-03 Adc Telecommunications, Inc. Cable utilizing varying lay length mechanisms to minimize alien crosstalk
US7214884B2 (en) * 2003-10-31 2007-05-08 Adc Incorporated Cable with offset filler
US7238885B2 (en) * 2004-12-16 2007-07-03 Panduit Corp. Reduced alien crosstalk electrical cable with filler element
US7157644B2 (en) * 2004-12-16 2007-01-02 General Cable Technology Corporation Reduced alien crosstalk electrical cable with filler element
US7317163B2 (en) * 2004-12-16 2008-01-08 General Cable Technology Corp. Reduced alien crosstalk electrical cable with filler element
US7375284B2 (en) * 2006-06-21 2008-05-20 Adc Telecommunications, Inc. Multi-pair cable with varying lay length
WO2010088381A2 (en) * 2009-01-30 2010-08-05 General Cable Technologies Corporation Separator for communication cable with geometric features
US8319104B2 (en) * 2009-02-11 2012-11-27 General Cable Technologies Corporation Separator for communication cable with shaped ends
US8546693B2 (en) 2010-08-04 2013-10-01 Tyco Electronics Corporation Cable with twisted pairs of insulated conductors and filler elements
DE202014003291U1 (de) * 2014-04-16 2014-07-04 Rosenberger Hochfrequenztechnik Gmbh & Co. Kg Kabelanordnung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR989196A (fr) * 1944-02-14 1951-09-05 Comp Generale Electricite Quarte étoile à bourrages intermédiaires pour câbles de télécommunication
FR1044316A (fr) * 1950-10-31 1953-11-17 Siemens Ag Conducteur électrique, en particulier câble téléphonique
US3843831A (en) * 1973-04-30 1974-10-22 Belden Corp Low capacitance and low leakage cable

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US240108A (en) * 1881-04-12 Compound telegraph-wire
US3993860A (en) * 1975-08-18 1976-11-23 Samuel Moore And Company Electrical cable adapted for use on a tractor trailer
EP0054784B1 (de) * 1980-12-19 1985-04-10 Kupferdraht-Isolierwerk AG Wildegg Freileitungskabel mit Zugentlastungsmitteln
GB2133206B (en) * 1982-12-15 1986-06-04 Standard Telephones Cables Ltd Cable manufacture
DE3310377A1 (de) * 1983-03-22 1984-10-11 Siemens AG, 1000 Berlin und 8000 München Fuellstuecke aus plastischem dichtungsmaterial fuer kabelgarnituren
DE3432600A1 (de) * 1984-08-31 1986-03-13 Siemens AG, 1000 Berlin und 8000 München Flexible elektrische steuerleitung
US5574250A (en) * 1995-02-03 1996-11-12 W. L. Gore & Associates, Inc. Multiple differential pair cable
FR2738947B1 (fr) * 1995-09-15 1997-10-17 Filotex Sa Cable multipaires, blinde par paire et aise a raccorder
US5808239A (en) * 1996-02-29 1998-09-15 Deepsea Power & Light Video push-cable

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR989196A (fr) * 1944-02-14 1951-09-05 Comp Generale Electricite Quarte étoile à bourrages intermédiaires pour câbles de télécommunication
FR1044316A (fr) * 1950-10-31 1953-11-17 Siemens Ag Conducteur électrique, en particulier câble téléphonique
US3843831A (en) * 1973-04-30 1974-10-22 Belden Corp Low capacitance and low leakage cable

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1030315A2 (de) * 1999-02-19 2000-08-23 Kerpenwerk GmbH & Co Datenkabel und Verfahren zur Herstellung eines Datenkabels
EP1030315A3 (de) * 1999-02-19 2001-05-02 Kerpenwerk GmbH & Co Datenkabel und Verfahren zur Herstellung eines Datenkabels
EP1157393B2 (en) † 1999-02-25 2013-02-27 Cable Design Technologies, Inc. Multi-pair data cable with configurable core filling and pair separation
WO2001029849A1 (en) * 1999-10-16 2001-04-26 Raydex/Cdt Ltd. Cables including fillers
EP2388788A3 (en) * 2000-05-15 2013-04-17 TYCO Electronics Corporation Vapor proof high speed communications cable and method of manufacturing the same
US7550674B2 (en) 2007-02-22 2009-06-23 Nexans UTP cable

Also Published As

Publication number Publication date
US6342678B1 (en) 2002-01-29
FR2776120B1 (fr) 2000-04-07
NO991209D0 (no) 1999-03-11
FR2776120A1 (fr) 1999-09-17
NO991209L (no) 1999-09-13

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