EP0577467B1 - Gemischtes Nachrichten- und Energiekabel - Google Patents

Gemischtes Nachrichten- und Energiekabel Download PDF

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Publication number
EP0577467B1
EP0577467B1 EP19930401580 EP93401580A EP0577467B1 EP 0577467 B1 EP0577467 B1 EP 0577467B1 EP 19930401580 EP19930401580 EP 19930401580 EP 93401580 A EP93401580 A EP 93401580A EP 0577467 B1 EP0577467 B1 EP 0577467B1
Authority
EP
European Patent Office
Prior art keywords
conductors
conductor
cable
power
power conductor
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
Application number
EP19930401580
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English (en)
French (fr)
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EP0577467A1 (de
Inventor
Pierre Pommard
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.)
Filotex SA
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Filotex SA
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Publication date
Application filed by Filotex SA filed Critical Filotex SA
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/003—Power cables including electrical control or communication wires
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/04—Concentric cables

Definitions

  • the present invention relates to a mixed communication and power cable.
  • cables currently used for data transmission (communication) and energy transport (single-phase or continuous) there are generally two electrical energy conductors isolated each by means of an insulating sheath and a plurality of electrical conductors for data transmission also isolated and used to control a device using information from sensors to which they are connected. All the conductors of these cables are preferably multi-strand, that is to say that they each consist of a strand of unitary conductive wires. This is to give the cable some flexibility.
  • This structure poses a number of problems.
  • the diameter of the cable is important.
  • the diameter of the cable obtained is approximately 15 mm.
  • the large thickness of insulation required around the two energy conductors is detrimental both for the diameter of the cable and for its mass.
  • the two energy conductors being placed side by side in the cable, it is important to properly isolate them electrically from one another, given the high voltages that they are capable of carrying.
  • the mass of cables thus obtained is prohibitive for underwater applications in which the cable is generally submerged to a certain depth and connects devices located on the surface to devices located underwater. Given the long lengths required, the weight of the cable may cause some devices on the surface to the bottom.
  • the communication conductors being in the center of the cable, they undergo significant electrical disturbances due to the energy conductor immediately above them, so that the communication signals they carry can be highly distorted.
  • the insulating envelopes interposed between each energy conductor and between the first energy conductor and the communication conductors prevent the cable from being flexible enough for applications requiring significant confinement.
  • An object of the present invention is therefore to produce a mixed communication and energy cable that is more flexible, lighter and of smaller diameter than the cables of the prior art, and therefore capable of withstanding numerous mechanical stresses while having a reduced bulk.
  • Another object of the present invention is to provide a mixed cable in which the disturbances undergone by the communication signals due to the presence of the energy conductors are as small as possible.
  • the coaxial arrangement gives greater flexibility to the cable than the two-wire arrangement.
  • the radii of curvature reached by the cables of structure in accordance with that of the invention are of the order of three to four times the external diameter of the cable, that is to say that they are two to three times smaller than those achieved by cables of the prior art.
  • the first and second insulating envelopes can each consist of a thin tape compared to the diameter of the data transmission conductors. This is possible because the insulation of the energy conductors from each other is achieved by means of the data transmission conductors.
  • the cable according to the invention can be very flexible.
  • a third energy conductor can be arranged coaxially with the second energy conductor and separated from the latter by a third insulating envelope, possibly a layer of data transmission conductors, a fourth insulating envelope, the sheath outdoor protection then surrounding the third energy conductor.
  • the third energy conductor can also be separated from the second by another insulating envelope.
  • the diameter of the cable obtained is approximately 10 mm, ie a reduction 30% compared to the prior art.
  • the single figure shows a cross section of a sector of a cable according to the invention.
  • the cable 1, with a longitudinal axis referenced X, comprises an axial energy conductor 2.
  • the conductor 2 consists of a stranding of 19 strands 3, each of the strands 3 itself being made up of 67 wires 4 of tinned copper 0.1 mm in diameter each.
  • the jacket 5 serves to improve the flexibility of the cable 1 by promoting the sliding of the different conductors.
  • 21 data transmission conductors 6 form a ring coaxial with the energy conductor 2 and are wound helically around the casing 5.
  • Each conductor 6 consists of a strand of 19 wires 7 of tinned copper of 0.1 mm in diameter, isolated by means of an ethylene-tetrafluoroethylene sheath 8 with an outside diameter equal to 0.79 mm.
  • the sheath 8 serves both to insulate the conductors 6 from each other and contributes to insulating the energy conductors of the cable 1 from each other.
  • a second insulating casing 9 also made of a PTFE tape identical to that constituting the first casing 5 keeps the conductors 6 and also ensures the flexibility of the cable 1.
  • Each of the strands 10 is made up of 37 wires 12 of 0.12 mm tinned copper of diameter.
  • the assembly thus formed is isolated from the outside environment by means of a polyester tape 13 0.17 mm thick surrounded by a polyurethane sheath 14 0.8 mm thick so that the diameter outside of cable 1 is approximately equal to 10 mm.
  • the cable according to the invention has the advantage over other cables of the same type of being both very flexible, light and compact, thanks to the use of a coaxial arrangement and to the insulation of the two energy conductors from each other effected by means of the data transmission conductors themselves.
  • the invention also applies to a communication and energy cable comprising more than two energy conductors, and for example three or four.
  • the coaxial structure can also be used.
  • the first and second energy conductors are arranged as in the example described above; instead of placing the outer protective sheath around the second energy conductor, there is either another layer of data transmission conductors separated from the second energy conductor by an insulating tape, or an insulating layer, around the latter. then a third energy conductor.
  • Power or data conductors are not necessarily multi-strand. They can for example consist of solid wires, or, for energy conductors other than the first, of metal tubes, according to the specifications of the application in which the cable according to the invention is used.

Landscapes

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

Claims (8)

  1. Kombiniertes Signal- und Energiekabel, das mindestens zwei Energieleiter und eine Vielzahl von isolierten Signalleitern aufweist, dadurch gekennzeichnet, daß die Leiter folgendermaßen angeordnet sind:
    - ein erster Energieleiter (2) nimmt eine axiale Stellung im Kabel (1) ein;
    - die Signalleiter (6) bilden einen zum ersten Energieleiter (2) koaxialen Ring und sind spiralförmig auf eine erste isolierende Hülle (5) aufgewickelt, die den ersten Energieleiter umgibt;
    - der zweite Energieleiter (11) liegt koaxial zum ersten Energieleiter (2), so daß er die Signalleiter (6) umgibt, von denen er durch eine zweite isolierende Hülle (9) getrennt ist,
    - eine äußere Schutzhülle (13, 14) umgibt den zweiten Energieleiter (11).
  2. Kabel nach Anspruch 1, dadurch gekennzeichnet, daß die erste und die zweite isolierende Hülle (5, 9) je aus einem Band geringer Dicke in Bezug auf den Durchmesser der Signalleiter (6) bestehen.
  3. Kabel nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß ein dritter Energieleiter koaxial zum zweiten Energieleiter (11) angeordnet und von diesem durch eine dritte isolierende Hülle, eine Schicht von Signalleitern und eine vierte isolierende Hülle getrennt ist, wobei die äußere Schutzhülle (13, 14) den dritten Energieleiter umgibt.
  4. Kabel nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß ein dritter Energieleiter koaxial zum zweiten Energieleiter (11) angeordnet und von diesem durch eine weitere isolierende Hülle getrennt ist, wobei die äußere Schutzhülle (13, 14) den dritten Energieleiter umgibt.
  5. Kabel nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Energieleiter vieladrig sind.
  6. Kabel nach Anspruch 5, dadurch gekennzeichnet, daß die die Energieleiter abgesehen vom ersten Energieleiter bildenden Adern spiralförmig um die entsprechenden isolierenden Hüllen gewickelt sind.
  7. Kabel nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Signalleiter vieladrig sind.
  8. Kabel nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß
    - der erste Energieleiter (2) von einer Verlitzung aus 19 Litzen (3) gebildet wird, die je aus einer Verlitzung von 67 leitenden Drähten (4) je eines Durchmessers gleich 0,1 mm bestehen,
    - jeder der Signalleiter (6) von einer Litze aus 19 leitenden Drähten (7) je eines Durchmessers von 0,1 mm gebildet wird, wobei die Litze mittels einer Hülle aus Äthylen-Tetrafluoräthylen (9) mit einem Außendurchmesser von 0,79 mm isoliert wird,
    - der zweite Energieleiter (11) aus 24 Litzen oder Adern (10) besteht, die je aus 37 leitenden Drähten (12) mit je einem Durchmesser von 0,12 mm bestehen,
    - die erste und die zweite isolierende Hülle (5, 9) je aus einem Polytetrafluoräthylen-Band mit einer Dicke von 50 µm bestehen,
    - die äußere Hülle aus einem Polyesterband (13) mit einer Dicke von 0,17 mm besteht, über der eine Polyurethanhülle (14) mit einer Dicke von 0,8 mm liegt.
EP19930401580 1992-06-29 1993-06-21 Gemischtes Nachrichten- und Energiekabel Expired - Lifetime EP0577467B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9207965 1992-06-29
FR9207965A FR2693024B1 (fr) 1992-06-29 1992-06-29 Câble mixte pour la transmission de données et la transmission d'énergie.

Publications (2)

Publication Number Publication Date
EP0577467A1 EP0577467A1 (de) 1994-01-05
EP0577467B1 true EP0577467B1 (de) 1996-10-16

Family

ID=9431300

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930401580 Expired - Lifetime EP0577467B1 (de) 1992-06-29 1993-06-21 Gemischtes Nachrichten- und Energiekabel

Country Status (3)

Country Link
EP (1) EP0577467B1 (de)
DE (1) DE69305432T2 (de)
FR (1) FR2693024B1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2302184B (en) * 1995-06-09 1999-09-08 Gen Electric Co Plc Composite cable for electrical power and communication signals
US6631095B1 (en) 1999-07-08 2003-10-07 Pgs Exploration (Us), Inc. Seismic conductive rope lead-in cable
CH695967A5 (de) * 2002-04-03 2006-10-31 Studer Ag Draht & Kabelwerk Elektrokabel.
DE102005050875A1 (de) * 2005-10-21 2007-04-26 Helu Kabel Gmbh Dreileiterkabel
CN102969062B (zh) * 2012-11-16 2014-12-10 江苏远洋东泽电缆股份有限公司 舰船用400Hz结构性能平衡电缆及其制造方法
DE102013202074A1 (de) * 2013-02-08 2014-08-14 Alfred Arnold Eingetragener Kaufmann Verladesysteme Transportsystem und Transportwagen für Paletten
DE202017103370U1 (de) 2017-06-02 2017-09-05 Igus Gmbh Durchmesserreduziertes Mehrleiterkabel und Kontaktvorrichtung hierfür

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2180731A (en) * 1937-03-27 1939-11-21 Anaconda Wire & Cable Co Combined power and communication cable
FR1339115A (fr) * 1961-11-10 1963-10-04 Câble en fil spiralé à couches multiples
US3261907A (en) * 1964-03-30 1966-07-19 Anaconda Wire & Cable Co High frequency power cable
DE4004802A1 (de) * 1990-02-13 1991-08-14 Siemens Ag Elektrisches kabel mit tragorgan und zwei konzentrisch angeordneten leitern

Also Published As

Publication number Publication date
DE69305432T2 (de) 1997-02-13
FR2693024B1 (fr) 1994-08-19
FR2693024A1 (fr) 1993-12-31
DE69305432D1 (de) 1996-11-21
EP0577467A1 (de) 1994-01-05

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