EP0577467B1 - Mixed communication and power cable - Google Patents
Mixed communication and power cable Download PDFInfo
- 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
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- Prior art keywords
- conductors
- conductor
- cable
- power
- power conductor
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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
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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
- H01B9/04—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.
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Description
La présente invention concerne un câble mixte de communication et d'énergie.The present invention relates to a mixed communication and power cable.
Dans les câbles actuellement utilisés pour la transmission de données (communication) et le transport d'énergie (en monophasé ou en continu), on trouve en général deux conducteurs électriques d'énergie isolés chacun au moyen d'une gaine isolante et une pluralité de conducteurs électriques de transmission de données également isolés et servant à piloter un appareil à l'aide d'informations provenant de capteurs auxquels ils sont reliés. Tous les conducteurs de ces câbles sont de préférence multibrins, c'est-à-dire qu'ils sont constitués chacun d'un toron de fils conducteurs unitaires. Ceci a pour but de conférer au câble une certaine souplesse.In the 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.
Une structure connue de ce type de câbles est la suivante :
- les deux conducteurs d'énergie isolés sont disposés côte à côte,
- les conducteurs de transmission de données sont disposés autour de la structure bifilaire ainsi formée de manière à donner au câble obtenu une section circulaire.
- the two isolated energy conductors are arranged side by side,
- the data transmission conductors are arranged around the two-wire structure thus formed so as to give the cable obtained a circular section.
Cette structure pose un certain nombre de problèmes.This structure poses a number of problems.
En premier lieu, elle n'est pas très souple (les rayons de courbure minimaux atteints sont de l'ordre de dix fois leur diamètre extérieur). Ceci est très pénalisant lorsque l'on souhaite utiliser des câbles ayant une telle structure pour alimenter et piloter des appareils mobiles ou se trouvant sous l'eau, en les soumettant à de nombreuses contraintes de flexion et sollicitations mécaniques.First, it is not very flexible (the minimum radii of curvature reached are of the order of ten times their outside diameter). This is very disadvantageous when it is desired to use cables having such a structure to power and control mobile devices or those located underwater, by subjecting them to numerous bending stresses and mechanical stresses.
Par ailleurs, la disposition des conducteurs dans le câble n'étant pas optimale, le diamètre du câble est important. Par exemple, pour un câble comportant deux conducteurs d'énergie de 10 mm2 de section chacun et 21 conducteurs de transmission de données d'environ 0,15 mm2 de section chacun, le diamètre du câble obtenu est de 15 mm environ. Or il est intéressant dans certaines applications, sous-marines par exemple, d'avoir un diamètre qui soit le plus faible possible afin de confiner le câble dans un espace réduit.Furthermore, the arrangement of the conductors in the cable not being optimal, the diameter of the cable is important. For example, for a cable comprising two energy conductors of 10 mm 2 in cross section each and 21 data transmission conductors of approximately 0.15 mm 2 of section each, the diameter of the cable obtained is approximately 15 mm. However, it is advantageous in certain applications, underwater for example, to have a diameter which is as small as possible in order to confine the cable in a reduced space.
Enfin, l'épaisseur d'isolation importante nécessaire autour des deux conducteurs d'énergie est pénalisante à la fois pour le diamètre du câble et pour sa masse. En effet, les deux conducteurs d'énergie étant placés côte à côte dans le câble, il est important de bien les isoler électriquement l'un de l'autre étant données les fortes tensions qu'ils sont susceptibles de transporter. La masse des câbles ainsi obtenus est prohibitive pour des applications sous-marines dans lesquelles le câble est en général immergé à une certaine profondeur et relie des appareils se trouvant à la surface à des appareils se trouvant sous l'eau. Compte-tenu des grandes longueurs nécessaires, le poids du câble risque d'entraîner certains appareils se trouvant à la surface vers le fond.Finally, the large thickness of insulation required around the two energy conductors is detrimental both for the diameter of the cable and for its mass. In fact, 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.
On connaît par ailleurs une autre structure de câble mixte d'énergie et de communication, décrite notamment dans le brevet US-2 180 731. Un câble ayant cette structure comporte, de l'intérieur vers l'extérieur :
- des conducteurs de communication,
- une première enveloppe isolante, constituée d'un rubanage et d'une gaine d'isolation,
- un premier conducteur d'énergie,
- une deuxième enveloppe isolante, également constituée d'un rubanage et d'une gaine d'isolation,
- un deuxième conducteur d'énergie,
- une troisième enveloppe isolante,
- une gaine extérieure de protection.
- communication conductors,
- a first insulating envelope, consisting of a tape and an insulation sheath,
- a first energy conductor,
- a second insulating envelope, also consisting of a tape and an insulation sheath,
- a second energy conductor,
- a third insulating jacket,
- an outer protective sheath.
Dans cette structure, les conducteurs de communication étant au centre du câble, ils subissent des perturbations électriques importantes du fait du conducteur d'énergie se trouvant immédiatement au-dessus d'eux, de sorte que les signaux de communication qu'ils transportent peuvent présenter de fortes distorsions.In this structure, 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.
En outre, les enveloppes isolantes interposées entre chaque conducteur d'énergie et entre le premier conducteur d'énergie et les conducteurs de communication empêchent le câble d'être suffisamment souple pour des applications demandant un confinement important.In addition, 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.
Un but de la présente invention est donc de réaliser un câble mixte de communication et d'énergie plus souple, plus léger et de diamètre plus faible que les câbles de l'art antérieur, et donc capable de résister à de nombreuses sollicitations mécaniques tout en ayant un encombrement réduit.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.
Un autre but de la présente invention est de réaliser un câble mixte dans lequel les perturbations subies par les signaux de communication du fait de la présence des conducteurs d'énergie sont les plus faibles possibles.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.
La présente invention propose à cet effet un câble mixte de communication et d'énergie comprenant au moins deux conducteurs d'énergie et une pluralité de conducteurs électriques isolés de transmission de données caractérisé en ce que lesdits conducteurs sont disposés de la manière suivante :
- un premier desdits conducteurs d'énergie occupe une position axiale le long dudit câble,
- lesdits conducteurs de transmission de données forment un anneau coaxial audit premier conducteur d'énergie et sont enroulés hélicoïdalement sur une première enveloppe isolante recouvrant ledit premier conducteur d'énergie,
- ledit deuxième conducteur d'énergie est coaxial audit premier conducteur d'énergie de sorte qu'il entoure lesdits conducteurs de transmission de données dont il est séparé par une deuxième enveloppe isolante,
- une gaine extérieure de protection entoure ledit deuxième conducteur d'énergie.
- a first of said energy conductors occupies an axial position along said cable,
- said data transmission conductors form a ring coaxial with said first energy conductor and are wound helically on a first insulating envelope covering said first energy conductor,
- said second energy conductor is coaxial with said first energy conductor so that it surrounds said data transmission conductors from which it is separated by a second insulating envelope,
- an outer protective sheath surrounds said second energy conductor.
Le fait de disposer les deux conducteurs d'énergie coaxialement l'un à l'autre en les isolant l'un de l'autre à l'aide des conducteurs de transmission de données permet de diminuer nettement l'encombrement du câble, et donc son diamètre. Ainsi, on a pu supprimer la gaine isolante encombrante des conducteurs d'énergie et loger dans un espace optimal les conducteurs de transmission de données auparavant disposés de manière désordonnée.The fact of placing the two energy conductors coaxially with one another by isolating them from one another using the data transmission conductors makes it possible to significantly reduce the size of the cable, and therefore its diameter. Thus, it was possible to remove the bulky insulating sheath of the energy conductors and to accommodate in an optimal space the data transmission conductors previously arranged in a disorderly manner.
Par ailleurs, la disposition coaxiale confère une plus grande souplesse au câble que la disposition bifilaire. Les rayons de courbure atteints par les câbles de structure conforme à celle de l'invention sont de l'ordre de trois à quatre fois le diamètre extérieur du câble, c'est-à-dire qu'il sont deux à trois fois plus faibles que ceux atteints par les câbles de l'art antérieur.Furthermore, 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.
En outre, le fait de disposer les conducteurs de transmission de données entre les deux conducteurs d'énergie permet de réduire les perturbations électriques subies. En effet, au niveau des conducteurs de transmission de données, les perturbations dues à chacun des conducteurs d'énergie se compensent puisque leurs champs, de sens contraires, s'annulent.Furthermore, having the data transmission conductors between the two energy conductors makes it possible to reduce the electrical disturbances suffered. Indeed, at the level of the data transmission conductors, the disturbances due to each of the energy conductors compensate each other since their fields, in opposite directions, cancel each other out.
De manière très avantageuse, les première et deuxième enveloppes isolantes peuvent être constituées chacune d'un ruban de faible épaisseur par rapport au diamètre des conducteurs de transmission de données. Ceci est possible car l'isolation des conducteurs d'énergie l'un par rapport à l'autre est réalisée au moyen des conducteurs de transmission de données. Ainsi, le câble selon l'invention peut être très souple.Very advantageously, 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. Thus, the cable according to the invention can be very flexible.
Toujours selon l'invention, un troisième conducteur d'énergie peut être disposé coaxialement au deuxième conducteur d'énergie et séparé de ce dernier par une troisième enveloppe isolante, éventuellement une couche de conducteurs de transmission de données, une quatrième enveloppe isolante, la gaine de protection extérieure entourant alors le troisième conducteur d'énergie. Le troisième conducteur d'énergie peut également être séparé du deuxième par une autre enveloppe isolante.Still according to the invention, 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.
On peut ainsi appliquer l'invention à un câble mixte comportant plus de deux conducteurs d'énergie, et par exemple trois ou quatre, en séparant les conducteurs d'énergie les uns des autres par des conducteurs de transmission de données, ou lorsque cela n'est plus possible, par des enveloppes isolantes. Ces conducteurs d'énergie peuvent être multibrins.It is thus possible to apply the invention to a mixed cable comprising more than two energy conductors, and for example three or four, by separating the energy conductors from one another by data transmission conductors, or when this does not is more possible, by insulating envelopes. These energy conductors can be multi-strand.
Enfin, pour un câble comportant deux conducteurs d'énergie de 10 mm2 de section chacun et 21 conducteurs de transmission de données de 0,15 mm2 environ de section chacun, le diamètre du câble obtenu est d'environ 10 mm soit une réduction de 30% par rapport à l'art antérieur.Finally, for a cable comprising two energy conductors of 10 mm 2 in cross section each and 21 data transmission conductors of approximately 0.15 mm 2 in cross section each, the diameter of the cable obtained is approximately 10 mm, ie a reduction 30% compared to the prior art.
D'autres caractéristiques et avantages de la présente invention apparaîtront dans la description suivante d'un câble selon l'invention, donnée à titre illustratif et nullement limitatif.Other characteristics and advantages of the present invention will appear in the following description of a cable according to the invention, given by way of illustration and in no way limitative.
La figure unique représente une coupe transversale d'un secteur d'un câble selon l'invention.The single figure shows a cross section of a sector of a cable according to the invention.
Le câble 1, d'axe longitudinal référencé X, comporte un conducteur d'énergie axial 2. Le conducteur 2 est constitué d'un toronnage de 19 torons 3, chacun des torons 3 étant lui-même constitué de 67 fils 4 de cuivre étamé de 0,1 mm de diamètre chacun.The
Une première enveloppe isolante 5 constituée d'un ruban de polytétrafluoroéthylène (PTFE) de 4,65 mm de diamètre extérieur et de 50 µm d'épaisseur environ entoure le conducteur 2. L'enveloppe 5 sert à améliorer la souplesse du câble 1 en favorisant le glissement des différents conducteurs.A first insulating
21 conducteurs 6 de transmission de données forment un anneau coaxial au conducteur d'énergie 2 et sont enroulés hélicoïdalement autour de l'enveloppe 5. Chaque conducteur 6 est constitué d'un toron de 19 fils 7 de cuivre étamé de 0,1 mm de diamètre, isolé au moyen d'une gaine 8 en éthylène-tétrafluoroéthylène de diamètre extérieur égal à 0,79 mm. La gaine 8 sert à la fois à isoler les conducteurs 6 les uns des autres et contribue à isoler l'un de l'autre les conducteurs d'énergie du câble 1.21
Une deuxième enveloppe isolante 9 également constituée d'un ruban de PTFE identique à celui constituant la première enveloppe 5 permet de maintenir les conducteurs 6 et d'assurer aussi la souplesse du câble 1.A second insulating
24 torons 10 constituant un deuxième conducteur d'énergie 11 forment un anneau coaxial au conducteur d'énergie 2 et sont enroulés hélicoïdalement autour de l'enveloppe 9. Chacun des torons 10 est constitué de 37 fils 12 de cuivre étamé de 0,12 mm de diamètre.24
Enfin, l'ensemble ainsi constitué est isolé du milieu extérieur au moyen d'un ruban de polyester 13 de 0,17 mm d'épaisseur entouré d'une gaine de polyuréthane 14 de 0,8 mm d'épaisseur de sorte que le diamètre extérieur du câble 1 est environ égal à 10 mm.Finally, the assembly thus formed is isolated from the outside environment by means of a polyester tape 13 0.17 mm thick surrounded by a
Le câble selon l'invention présente l'avantage par rapport à d'autres câbles du même type d'être à la fois très souple, léger et peu encombrant, grâce à l'utilisation d'une disposition coaxiale et à l'isolation des deux conducteurs d'énergie l'un de l'autre effectuée au moyen des conducteurs de transmission de données eux-mêmes.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.
Le fait d'interposer les conducteurs 6 de transmission de données entre les conducteurs d'énergie 2 et 11 permet d'isoler ces derniers l'un de l'autre et de n'utiliser qu'un ruban, de faible épaisseur, entre chacun des conducteurs d'énergie et les conducteurs de transmission de données.The fact of interposing the
Bien entendu, l'invention n'est pas limitée au mode de réalisation qui vient d'être décrit.Of course, the invention is not limited to the embodiment which has just been described.
Tout d'abord, l'invention s'applique également à un câble de communication et d'énergie comprenant plus de deux conducteurs d'énergie, et par exemple trois ou quatre. Dans ce cas, la structure coaxiale peut également être utilisée. Les premier et deuxième conducteurs d'énergie sont disposés comme dans l'exemple décrit plus haut ; au lieu de placer la gaine extérieure de protection autour du deuxième conducteur d'énergie, on dispose autour de ce dernier soit une autre couche de conducteurs de transmission de données séparée du deuxième conducteur d'énergie par un ruban isolant, soit une couche isolante, puis un troisième conducteur d'énergie. On peut alors soit placer la gaine extérieure du câble, soit disposer un autre conducteur d'énergie en le séparant encore par des conducteurs de transmission de données ou par une couche isolante.First of all, the invention also applies to a communication and energy cable comprising more than two energy conductors, and for example three or four. In this case, 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. We can then either place the outer sheath of the cable, or arrange another energy conductor by further separating it by data transmission conductors or by an insulating layer.
Les conducteurs d'énergie ou de transmission de données ne sont pas nécessairement multibrins. Ils peuvent être par exemple constitués de fils massifs, ou encore, pour les conducteurs d'énergie autres que le premier, de tubes métalliques, selon les spécifications de l'application dans lequel le câble selon l'invention est utilisé.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.
Par ailleurs, les valeurs numériques sont données à titre indicatif et pourront être changées à loisir sans sortir du cadre de l'invention.Furthermore, the numerical values are given for information only and may be changed at will without departing from the scope of the invention.
De même, le choix des matériaux constituant les conducteurs ou les différentes enveloppes et gaines isolantes est à la portée de l'homme de l'art et rentre dans le cadre de la présente invention.Likewise, the choice of materials constituting the conductors or the various insulating sheaths and sheaths is within the reach of those skilled in the art and falls within the scope of the present invention.
Claims (8)
- A combined communications and power cable comprising at least two power conductors and a plurality of insulated electric conductors for transmitting data, the cable being characterized in that said conductors are disposed as follows:• a first of said power conductors (2) occupies an axial position along said cable (1);• said data transmission conductors (6) form a coaxial ring about said first power conductor (2) and they are wound helically over a first insulating envelope (5) covering said first power conductor;• said second power conductor (11) is coaxial with said first power conductor (2) so as to surround said data transmission conductors (6) from which it is separated by a second insulating envelope (9); and• an outer protective sheath (13, 14) surrounds said second power conductor (11).
- A cable according to claim 1, characterized in that each of said first and second insulating envelopes (5, 9) is constituted by a tape that is thin relative to the diameter of said data transmission conductors (6).
- A cable according to claim 1 or 2, characterized in that a third power conductor is disposed coaxially about said second power conductor (11) and is separated therefrom by a third insulating envelope, a layer of data transmission conductors, and a fourth insulating envelope, said outer protective sheath (13, 14) then surrounding said third power conductor.
- A cable according to claim 1 or 2, characterized in that a third power conductor is disposed coaxially about said second power conductor (11) and is separated therefrom by another insulating envelope, said outer protective sheath (13, 14) then surrounding said third power conductor.
- A cable according to any one of claims 1 to 4, characterized in that said power conductors are multistrand conductors.
- A cable according to claim 5, characterized in that said wires constituting the power conductors other than said first power conductor are wound helically around said corresponding insulating envelopes.
- A cable according to any one of claims 1 to 6, characterized in that said data transmission conductors are multistrand conductors.
- A cable according to any one of claims 1 to 7, characterized in that:• said first power conductor (2) is made up of 19 stranded wires (3) each made up of 67 twisted-together conductor strands (4) each having a diameter of 0.1 mm;• each of said data transmission conductors (6) is constituted by a stranded wire of 19 conductor strands (7) each of diameter equal to 0.1 mm, said stranded wire being insulated by means of a sheath of ethylenetetrafluoroethylene (8) having an outside diameter equal to 0.79 mm;• said second power conductor (11) is constituted by 24 stranded wires (10) each made up of 37 conductor strands (12) each having a diameter of 0.12 mm;• each of said first and second insulating envelopes (5, 9) is constituted by a polytetrafluoroethylene tape having a thickness of 50 µm; and• said outer sheath is constituted by a polyester tape (13) having a thickness of 0.17 mm and having a polyurethane sheath (14) with a thickness of 0.8 mm superposed thereon.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FR9207965 | 1992-06-29 | ||
FR9207965A FR2693024B1 (en) | 1992-06-29 | 1992-06-29 | Mixed cable for data transmission and energy transmission. |
Publications (2)
Publication Number | Publication Date |
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EP0577467A1 EP0577467A1 (en) | 1994-01-05 |
EP0577467B1 true EP0577467B1 (en) | 1996-10-16 |
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Application Number | Title | Priority Date | Filing Date |
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EP19930401580 Expired - Lifetime EP0577467B1 (en) | 1992-06-29 | 1993-06-21 | Mixed communication and power cable |
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EP (1) | EP0577467B1 (en) |
DE (1) | DE69305432T2 (en) |
FR (1) | FR2693024B1 (en) |
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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 (en) * | 2002-04-03 | 2006-10-31 | Studer Ag Draht & Kabelwerk | Electrical cable. |
DE102005050875A1 (en) * | 2005-10-21 | 2007-04-26 | Helu Kabel Gmbh | Three-conductor cable |
CN102969062B (en) * | 2012-11-16 | 2014-12-10 | 江苏远洋东泽电缆股份有限公司 | 400Hz structural performance balanced cable for ships and manufacture method thereof |
DE102013202074A1 (en) * | 2013-02-08 | 2014-08-14 | Alfred Arnold Eingetragener Kaufmann Verladesysteme | Transport system and transport trolley for pallets |
DE202017103370U1 (en) | 2017-06-02 | 2017-09-05 | Igus Gmbh | Diameter reduced multi-conductor cable and contact device for this |
Family Cites Families (4)
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 (en) * | 1961-11-10 | 1963-10-04 | Multi-layered spiral wire cable | |
US3261907A (en) * | 1964-03-30 | 1966-07-19 | Anaconda Wire & Cable Co | High frequency power cable |
DE4004802A1 (en) * | 1990-02-13 | 1991-08-14 | Siemens Ag | ELECTRIC CABLE WITH TRAGORGAN AND TWO CONCENTRICALLY LADERS |
-
1992
- 1992-06-29 FR FR9207965A patent/FR2693024B1/en not_active Expired - Fee Related
-
1993
- 1993-06-21 DE DE1993605432 patent/DE69305432T2/en not_active Expired - Fee Related
- 1993-06-21 EP EP19930401580 patent/EP0577467B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2693024B1 (en) | 1994-08-19 |
EP0577467A1 (en) | 1994-01-05 |
FR2693024A1 (en) | 1993-12-31 |
DE69305432T2 (en) | 1997-02-13 |
DE69305432D1 (en) | 1996-11-21 |
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