WO2011035450A2 - Câble électro-optique - Google Patents

Câble électro-optique Download PDF

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Publication number
WO2011035450A2
WO2011035450A2 PCT/CH2010/000230 CH2010000230W WO2011035450A2 WO 2011035450 A2 WO2011035450 A2 WO 2011035450A2 CH 2010000230 W CH2010000230 W CH 2010000230W WO 2011035450 A2 WO2011035450 A2 WO 2011035450A2
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WO
WIPO (PCT)
Prior art keywords
electro
optical cable
electrically conductive
central
layer
Prior art date
Application number
PCT/CH2010/000230
Other languages
German (de)
English (en)
Other versions
WO2011035450A3 (fr
Inventor
Tuija Kosonen
Original Assignee
Brugg Kabel Ag
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 Brugg Kabel Ag filed Critical Brugg Kabel Ag
Publication of WO2011035450A2 publication Critical patent/WO2011035450A2/fr
Publication of WO2011035450A3 publication Critical patent/WO2011035450A3/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/005—Power cables including optical transmission elements
    • 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
    • G02B6/4416—Heterogeneous cables
    • 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
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/443—Protective covering
    • G02B6/4432—Protective covering with fibre reinforcements

Definitions

  • Electro-optical cables comprise, in addition to at least one optical waveguide, one or more electrical conductors.
  • About the at least one optical waveguide can be z.
  • WO 2007/006167 A1 discloses, for example, an electro-optical communication and power cable which consists of a smooth, flexible metal tube, at least one optical waveguide with a primary cladding, two layers of stranded metal wires running coaxially with the buffer tube, which also serve as a tensile and shear force relief, and an outer sheath comprises.
  • the metal tube surrounding a loosely arranged fiber optic cores, z. As a gel, are present. If the metal tube is made of a highly conductive material, the metal wires of the inner layer can at most be omitted.
  • the fiber optic core consists z.
  • a strain relief, z is also provided in the sheath.
  • aramid yarn with glass fiber epoxy rods as protection for the optical fibers.
  • the optical core is surrounded by an inner and an outer braided electrical conductor.
  • the braided ladder consist z. B. from a copper braid and be through a dielectric, z. B. of a polymeric material such as PE, PP, PTFE, kept at a distance.
  • the outer electrical conductor is also surrounded by a strain relief and an outer sheath.
  • the outer sheath and the sheath of the fiber optic core also contain a pull line.
  • a central loose tube is surrounded by at least one tubular and electrically conductive braid and at least one tubular electrically conductive layer in a coaxial arrangement, wherein the second tubular electrically conductive layer is formed as a stranded wire layer.
  • a braid in particular an arrangement of several regularly interlaced strands or bundles of a flexible and electrically conductive material understood.
  • the individual strands are in particular skewed, ie at an angle greater than 0 ° and less than 90 °, arranged to each other and can for example consist of one or more individual elements, such as.
  • metal wires exist.
  • the braid is in particular tubular, with a longitudinal central axis of the braid extending coaxially to a longitudinal central axis of the central bundle core or the tubular braid.
  • the central loose tube is evenly surrounded by the mesh.
  • the first braid lies directly on the plastic tube of the central loose tube.
  • a stranded wire layer As a second tubular electrically conductive layer according to the invention a stranded wire layer is provided.
  • the inventive cable can be produced in short production times, as u. a. a stranding can be produced faster and easier to check than a braid.
  • each electrical layer is therefore separated, preferably by a dielectric insulator.
  • the at least one optical waveguide can, for. B. in the form of a glass fiber made of a mineral glass or a light-conducting plastic. Preference is given to bending-optimized glass fibers are used, the glass fibers also advantageously have a primary sheath made of plastic. An outer diameter of the glass fiber with the primary sheath measures, for example, 125 ⁇ to 250 ⁇ . However, in principle, other light-conducting elements can also be used as optical waveguides. Depending on the application, optical fibers with single-mode fibers or multimode fibers used. But there are also other glass fibers used, which are not particularly optimized for bending, for example.
  • the at least one optical waveguide is loosely present in the central loose tube.
  • the central buffer tube preferably has an outer diameter of at most 4 mm. It is also possible to provide a plurality of loose tubes within the electrically conductive braid, for example 2 to 6 loose tubes, preferably four loose tubes. Preferably, up to four optical fibers are arranged in each loose tube.
  • the at least one optical waveguide can move relative to it during a deformation of the central loose tube caused by an acting force, or assume a new relative position to the central loose tube.
  • the force acting on the central buffer tube during the deformation during the deformation is thus not necessarily transmitted to the at least one optical waveguide.
  • the central buffer tube therefore preferably contains no additional elements, such. B. tensile elements.
  • the central loose tube advantageously only contains one or more optical waveguides. As a result, a sufficient relative movement of the at least one optical waveguide can be ensured. In the case of multiple loose tubes, these can also be provided movable relative to each other.
  • the structure according to the invention also ensures a good assembly of the cables, since both the optical waveguide and the electrically conductive mesh and the electrically conductive wire layer are easily accessible and connectable to connectors.
  • the at least one optical waveguide is embedded in the central loose tube in a fluid vein filling compound.
  • the at least one optical waveguide is thus present loosely in the central loose tube filled with a fluid vein filler compound.
  • the at least one optical waveguide in the fluid vein filler mass is mounted freely movably in the central buffered vein, at least in the radial direction.
  • the fluid vein filler is preferably a gelatinous mass or a finely divided system of at least one solid and one liquid phase.
  • the fluid core filler effectively attenuates short-term sudden effects on the cable according to the invention, which optimally protects the at least one and sensitive optical waveguide.
  • the central loose tube is completely filled with fluid vein filler. Apart from the at least one optical waveguide and the fluid core filling compound, there are advantageously no further elements in the central loose tube.
  • the central buffer tube thus preferably contains exclusively at least one optical waveguide and the fluid vein filler.
  • a fluid wire-filling compound can basically be dispensed with.
  • a loose tube made of a metal tube for.
  • a steel pipe to provide and / or to manufacture the central loose tube of other materials than plastic or metal.
  • a ratio between an outer diameter of the first braid and an outer diameter of the plastic tube is advantageously in the range of 1.2 to 1.6, preferably 1.35 to 1.45.
  • the bending elasticity and mechanical strength of the inventive cable can be further optimized in a compact design.
  • a ratio of an outer diameter of the central loose tube to an inner diameter of the central loose tube is advantageously about 1.3-2.2, particularly preferably about 1.6-1.7. More preferably, the central loose tube has a Outer diameter of 1.3 - 1.7 mm and / or an inner diameter of 0.8 - 1.0 mm, the central loose tube preferably has a wall thickness of 0.2 - 0.4 mm.
  • the central loose tube consists of a plastic tube, in particular of polyamide, polypropylene, polybutylene terephthalate and / or polyethylene. Such trained central loose tubes are unusually small compared to known loose tubes.
  • central loose tubes which z. B. have a smaller outer diameter than 1.3 mm or a larger outer diameter than 1.7 mm. Also, it is not mandatory to comply with the above-mentioned relationships between outside and inside diameters.
  • a total of four optical waveguides are arranged in the central loose tube, which advantageously have an outer diameter of about 250 ⁇ .
  • the cable according to the invention in this embodiment also offers a high degree of flexibility with regard to the possible applications. However, it is possible in principle to provide more than four and in particular up to eight optical waveguides in the central loose tube.
  • the at least one optical waveguide has an excess length with respect to the central loose tube.
  • the excess length is preferably in the range of 0.05-0.2%.
  • the excess length relates in particular to a length of the central loose tube at room temperature, d. H. about 20 ° C.
  • Such overlengths have proven to be suitable in particular in combination with central loose tubes made of plastic pipes with an outer diameter of 1.3-1.7 mm and / or an inner diameter of 0.8-1.0 mm or a wall thickness of 0.2-0.4 mm.
  • the excess length of the at least one optical waveguide makes it possible to compensate for the different coefficients of thermal expansion of at least one glass fiber and of the central loose tube, in particular in the case of central loose plastic tubes.
  • the inventive cable thus remains fully functional even at high temperature fluctuations and takes no damage.
  • the inventive cable can be used at temperatures of -55 ° C up to + 85 ° C.
  • a storage of the inventive cable is possible even in a temperature range of -70 ° C to + 85 ° C.
  • the first electrically conductive mesh preferably consists of metal wires, in particular of copper wires, which particularly preferably have a diameter of 0.05-0.2 mm. In other words, the first metal mesh is advantageously present as wire mesh or copper braid.
  • the copper wires are tinned copper wires.
  • Braids of metal wires, and in particular copper wires have proven to be particularly useful, since they have both a good electrical conductivity, as well as in With regard to the mechanical strength and flexibility have particularly advantageous properties. This applies in particular to metal wires with a diameter of 0.05-0.2 mm, with metal wires having a diameter of 0.13-0.17 mm proving to be optimal in the present context.
  • the first braid can also consist of another conductive material. So it is conceivable in principle, a network of conductive fibers, eg. As carbon fibers to provide. Carbon fibers are characterized in particular by a high mechanical stability as well as a good electrical conductivity.
  • the first mesh of different materials, wherein also electrically conductive materials can be combined with electrically non-conductive materials.
  • the first braid of metal wires in particular copper wires, and high-strength synthetic fibers, for. B. aramid fibers to manufacture. It is also possible to deviate from the specified wire diameters, which, however, may be at the expense of conductivity, flexibility and / or mechanical strength.
  • the first electrically conductive braid consists of 8-36 braided bundles of 1-12 metal wires. Plaits made of 15 - 17 bundles with 2 to 4 wires each proved to be particularly suitable.
  • An outer diameter of the first mesh preferably measures approximately 2.0-2.2 mm.
  • an electrical resistance of the first mesh is 15-40 ⁇ / km, more preferably 20-28 ⁇ / km. This ensures good electrical conductivity in combination with sufficient mechanical strength of the first braid.
  • the first electrically conductive braid has a braid angle of 45-80 °, preferably 60-75 °, with respect to a longitudinal center axis of the braid or the central bundle core.
  • the braid angle denotes the deviation of the wire path in the tubular braid from the longitudinal central axis of the braid or the longitudinal central axis of the central bundle core.
  • the braid angle plays a decisive role in the specified range with regard to an optimal flexural flexibility and mechanical strength of the cable according to the invention. In principle, however, larger or smaller braid angles can be provided.
  • the first electrically conductive mesh has an area coverage of 80-99%, preferably 85-95.
  • the area coverage is defined in particular as the area fraction which is covered in a projection of the tubular braid on the enveloping lateral surface of the tubular braid. Since the area coverage is advantageously at most 99%, the mesh has gaps. These intermediate spaces increase bending flexibility, in particular in the event of bending of the cable according to the invention, since additional free space exists, in particular in compressed areas. It has proved particularly expedient to have an area coverage of 85-95%. In such area coverings on the one hand a high bending flexibility is achieved, on the other hand results in a high mechanical strength against tensile, transverse pressure and impact loads.
  • the cable according to the invention may also be advantageous to provide smaller surface coverages than 80% or larger surface coverages than 99%.
  • the possible uses of the cable according to the invention are generally limited.
  • the first electrically conductive braid is surrounded by a coaxially arranged second tubular and electrically conductive layer in the form of a stranded wire layer.
  • the first electrically conductive mesh is in particular electrically insulated from the second electrically conductive layer.
  • the electrically conductive mesh can z. B. are provided as a phase conductor, while the electrically conductive stranded wire layer acts as a neutral conductor or ground conductor.
  • This has the advantage that damage to the outer areas of the cable, even at high voltages or currents, there is no immediate danger to persons who come into contact with the damaged areas.
  • Prefabricated cables therefore preferably have reverse polarity protected connectors at the cable ends.
  • the cable ends are equipped with hermaphroditic connectors. This ensures that the cable is not accidentally connected incorrectly.
  • electrically conductive layers in addition to the two electrically conductive layers further electrical conductors, in particular further stranded layers of electrically conductive wires, can be provided.
  • all electrically conductive layers of the same material in particular copper.
  • the electrically conductive stranded wire layer is advantageously made of metal wires, in particular of copper wires, which particularly preferably have a diameter of 0.05 - 0.2 mm.
  • the impact length is for example 40-50 mm (with a cable diameter of 3-6 mm, the impact angle is for example 12 ° -14 ° and the blocking of the wires is for example in the range of -0.03 mm to +0.04 mm
  • Particularly preferred are the electrically conductive
  • the electrically conductive braid and the electrically conductive stranded wire layer advantageously consist of metal wires, which consist of the same material, in particular copper, and have the same cross-sectional areas and the same diameters
  • Such a configuration of the stranded wire layer enables both a particularly compact design and a high bending flexibility as well as mechanical strength of the cable according to the invention.
  • the electrically conductive stranded wire layer consists in particular of 8-16, preferably 10 - 14 stranded bundles of 1-20, preferably 1-12 metal wires.
  • metal wires preferably copper wires are used with a diameter of 0.05 - 0.2 mm. Bundles of 10-14 wires have proven particularly suitable.
  • An outer diameter of the stranded wire layer preferably measures between 3.6 - 4.0 mm.
  • the stranding is twisted with respect to the longitudinal central axis and may have an angle of 10 - 50 °. In contrast to a longitudinal central axis, stranding has a lay length between 25 and 50 mm, preferably between 30 and 45 mm.
  • 16 bundles with 4 wires are used in a braid and 12 bundles with 3 wires are used in a stranded wire layer. It can be used for the bundles of stranded wire layer thicker wires than for the braid. Preferably, however, the wires of the braid and the stranding have the same diameter.
  • the stranded wire layer is formed by two or more superposed layers of stranded wires.
  • the individual layers can consist of various bundles. In particular, the area coverage of the individual layers may be different.
  • the stranding direction is different for each layer, i. H. if one layer is stranded on the left, an overlying layer is stranded on the right, etc.
  • the electrical resistance of the stranded wire layer is preferably 15-40 ⁇ / km, more preferably 20-28 ⁇ / km.
  • a first electrical resistance of the electrically conductive braid is substantially the same as a second electrical resistance of the stranded wire layer. This can be z. B. realize by a smaller area coverage of the stranded wire layer against the braid. Overall, this simplifies the power line, since there are the same conditions regardless of the electrically conductive layer. But it is also possible to form the stranded wire layer with a different from the braid electrical resistance. It is also possible, the stranded wire layer with provide an electrical resistance of less than 1 5 ⁇ / km or more than 40 ⁇ / km.
  • an insulating layer for electrical insulation is arranged between the first electrically conductive braid and the stranded wire layer. If additional electrically conductive layers are arranged, insulation layers are advantageously present between all the layers. Under an insulating layer in the present context, in particular a layer of a material having a specific electrical resistance of more than 1 0 ⁇ 1 0 ⁇ ZU understand. Through the insulating layer can be achieved in a simple manner an effective electrical insulation between the two electrically conductive layers. Due to the interaction of the insulation layer and the two layers, it is possible to use the inventive cable for currents of up to 1 5 A at AC voltages of up to 1 000 V or DC voltage of up to 1 500 V.
  • the electrically conductive elements for.
  • the braid or the stranding instead of or in addition to the insulation layer to be provided with an electrically insulating coating.
  • an electrical insulation can also be achieved.
  • the insulating layer preferably consists of a plastic, preferably of thermoplastics, polyamide, ethylene-propylene rubber (EPR), polyethylene, and / or polyurethane.
  • EPR ethylene-propylene rubber
  • FRNC flame retardant non-corrosive plastic
  • the insulation layer further preferably has a thickness of 0.25-0.75 mm in a radial direction. It has been found that such insulating layers are particularly advantageous. Besides an effective electrical insulation, this insulation layers improve the interaction with the two electrically conductive layers in addition, the mechanical strength of the inventive cable, without thereby affecting the bending flexibility.
  • the insulating layer can also be made of other materials.
  • In question come z. B. non-conductive fiber materials. It is also possible to deviate from the stated thicknesses, but at lower thicknesses it must be ensured that there is sufficient electrical insulation. Greater thicknesses are particularly disadvantageous in terms of bending flexibility and a compact design.
  • the Ceibonungslage consists in particular of synthetic fibers, which is particularly preferably aramid fibers.
  • the braid and / or the stranded wire layer and / or an outermost electrically conductive wire-stranded wire layer are surrounded by the strain relief layer.
  • the Buchentlastungslage is preferably outside of the central loose tube and more preferably outside of the first electrically conductive mesh and possibly existing further electrically conductive layers.
  • the outer stranded wire layer is surrounded by the strain relief layer, the strain relief layer advantageously rests directly on the stranded wire layer.
  • the strain relief layer advantageously rests directly on the stranded wire layer.
  • Such a configuration and arrangement of the strain relief layer has proven to be particularly suitable. On the one hand, this maintains a high flexural flexibility of the cable according to the invention, on the other hand, the mechanical strength can be improved significantly with nevertheless extremely compact construction. In principle, however, can also be dispensed with a strain relief or it can be provided a differently designed strain relief, which limits the uses of the inventive cable.
  • the strain relief z. B. also in the form of solid wires made of high-strength metal or plastic.
  • outer sheath For special applications but can also be dispensed with an outer sheath or the outer sheath can be made of a different material than polyamide.
  • the invention also relates to an electro-optical cable for data transmission and / or energy transmission comprising a central loose tube, wherein in the central loose tube at least one optical waveguide is arranged and wherein the central loose tube is surrounded by at least a first tubular and electrically conductive braid in a coaxial arrangement ,
  • This cable is characterized in that the at least one optical waveguide is loosely present in the central loose tube and that the central loose tube has an outer diameter of at most 4 mm.
  • Such a cable does not necessarily have to have a stranded wire layer, but instead may have one or more wire meshes, as described above as a preferred embodiment. Of course, it may be advantageous to combine this other variant with the features previously described as an option of the stranded wire layer cable.
  • a particularly preferred embodiment of the cable according to the invention has, in addition to the central buffer tube according to the invention, a first metallically conductive braid placed thereon, an insulating layer extruded onto the first metallic braid, a stranded wire layer applied to the insulating layer, a strain relief layer resting on the stranded wire layer, and one on the Strain relief layer applied outer jacket.
  • the inventive cable can be used for a variety of applications. For example, as transmission lines under water, especially in open waters and sewers of settlements, commercial and industrial, and in the ground, especially along roads or rails, in piping and cable ducts or buildings.
  • the cable according to the invention can be laid as an overhead line.
  • the inventive cable can be used under harsh conditions in the military environment or in oil production.
  • the cables according to the invention are especially suitable for mobile use.
  • the inventive cable is z. B. suitable for the remote supply of a mobile electrical device and / or a mobile electrical power supply network.
  • the cable can be used for example as a connecting line in an arrangement with two voltage transformers, which is in particular a hard-wired and a variable voltage converter.
  • the arrangement comprises, for example, a first voltage converter, for example a transformer, and a second voltage converter, for example also a transformer, wherein the two voltage transformers are electrically conductively connected via a cable according to the invention.
  • a first voltage converter for example, the electrical energy to be transmitted via the cable according to the invention becomes such transforms that the highest possible voltage and low current results, allowing a loss-minimized transmission of electrical energy.
  • the second voltage converter a corresponding inverse transformation to lower voltages and higher currents, as z. B. are suitable for operating a consumer and / or a mobile electrical power supply network.
  • Fig. 2 shows a cross section through the cable of Fig. 1; 3 shows a side view of a second embodiment of an electrooptical cable according to the invention with four loose tubes;
  • FIG. 1 an electro-optical cable 1 according to the invention is shown in a schematic side view along its longitudinal central axis 14 in the region of the cable end.
  • the individual cable elements are exposed in layers in the longitudinal direction to illustrate the cable structure.
  • FIG. 2 accordingly shows a schematic cross section through the circular cross-section electro-optical cable 1 along the line through an outer jacket 60 of the cable 1 in FIG. 1.
  • the electro-optical cable 1 has a central loose tube 10 made of a plastic tube 1 1 with, for example, four optical waveguides 12a, 12b, 12c, 12d arranged therein. All four optical waveguides 12a, 12b, 12c, 12d consist for example of bending-optimized glass fibers and are each surrounded by a primary cladding 13a, 13b, 13c, 13d. Depending on the application, optical fibers with single-mode fibers or multimode fibers are used. An outer diameter of each of the four optical waveguides 12a, 12b, 12c, 12d including the primary cladding 13a, 13b, 13c, 13d is z. B. 250 ⁇ .
  • the four optical waveguides 12a, 12b, 12c, 12d with their primary cladding 13a, 13b, 13c, 13d have in a longitudinal direction of the electro-optical cable 1 or in a direction parallel to the longitudinal central axis 14 of the electro-optical cable 1 at a temperature of about 20 ° C. Overlength compared to the plastic tube 1 1, for example, about 0.1%.
  • the plastic tube 1 1 of the central buffer tube 10 is z.
  • a wall thickness of the plastic tube 1 1 measures approximately 0.2 - 0.4 mm.
  • the plastic tube 1 1 is completely filled with a fluid vein filler 15 in the form of a gel.
  • the four optical waveguides 12a, 12b, 12c, 12d with their primary sheaths 13a, 13b, 13c, 13d are embedded in the radial cored mass 15 in the radial direction and, to a limited extent, also in the longitudinal direction.
  • the central loose tube 10 and the plastic tube 1 1 is surrounded by a first electrically conductive mesh 20.
  • the first braid 20 is rohrformig and is located directly on the lateral surface of the plastic tube 1 1 on.
  • a longitudinal center axis of the first braid 20 is aligned coaxially to the longitudinal central axis 14 of the electro-optical cable.
  • the first braid 20 consists for example of sixteen interwoven bundles and has an outer diameter 20.1 of about 2.0 - 2.2 mm.
  • a bundle 21 is z.
  • a braid angle 23.1 which is measured as an angle between the longitudinal center axis 14 of the electro-optical cable 1 and a tangential direction of the wire path of the metal wires 22a, 22b, 22c, 22d, is z. B. about 60 - 75 °.
  • the area coverage of the first mesh is about 90%.
  • the electrical resistance of the first braid 20 is z. B. about 22 ⁇ per 1 km cable length.
  • the braid 20 is surrounded directly by an extruded insulating layer 30 made of polyamide, wherein a thickness 30.1 of the insulating layer 30, measured in the radial direction of the electro-optical cable 1, for example, about 0.25 - 0.75 mm.
  • a bundle of the stranded wire layer 40 is substantially identical in construction to the bundle 21 of the braid and accordingly has four metal wires, which are in the form of tinned copper wires with a diameter of 0.13 - 0.17 mm.
  • the metal wires of the braid 20 and the stranded wire layer 40 are substantially identical. All bundles of the stranded wire layer 40 are essentially identical.
  • An angle measured between the longitudinal central axis 14 of the electro-optical cable 1 and a tangential direction of the wire path of the metal wires of the stranded wire layer 40 is, for. B. about 70 - 85.
  • the electrical resistance of the stranded wire layer 40 is as in the braid 20 about 22 ⁇ per 1 km of cable length.
  • the strain relief layer 50 includes longitudinal threads, which run parallel to the longitudinal central axis 14 of the electro-optical cable 1, as well as stranded threads, which rotate around the longitudinal central axis 14 helically.
  • An outer jacket 60 is applied around the strain relief layer 50.
  • the outer jacket 60 is depending on the application z.
  • the outer diameter of the outer jacket 60 and the electro-optical cable 1 is about 4 - 6 mm.
  • the plastic used for the outer jacket 60 is preferably softer than the plastic used for the insulating layer 30 and / or the plastic pipe 11. As can be seen from FIGS. 1 and 2, the outer sheath 60, the strain relief layer 50 and the stranded wire layer 40 form a unit. Accordingly, they are made together.
  • FIG. 3 shows a second embodiment of an electro-optical cable according to the invention which has four individual loose tubes, of which three loose tubes 10a, 10b and 10c are visible.
  • the loose tubes four optical waveguides are provided with their primary sheaths, wherein the optical waveguides 12a, 12b and the shells 13a, 13b are visible.
  • the four loose tubes are arranged centrally in the core of the cable.
  • the braid 20 is formed by 16 bundles 21 and has lower area coverage compared to the embodiment of Figure 1 on.
  • a bundle 21 consists of 4 wires with 0.10 - 0.25 mm diameter.
  • an insulating layer 30 is arranged, which is about 0.40 - 0.60 mm.
  • an electrically conductive stranded wire layer 40 is provided on the insulation layer 30, an electrically conductive stranded wire layer 40 is provided.
  • the stranded wire layer 40 is surrounded by a strain relief layer 50 and the outer deficiency 60 and forms a structural unit with these.
  • the arrangement 100 comprises a first voltage converter in the form of a first transformer 110 and a second voltage converter in the form of a second transformer 120, which are connected via the first transformer
  • Electro-optical cable 1 of FIGS. 1 and 2 or 3 are electrically connected together.
  • the electro-optical cable 1 has at its first end via a hermaphroditic connector 90 a, which is electrically connected to a complementary socket 1 1 1 of the first transformer 1 10.
  • the second end of the electro-optical cable 1 is provided with a second hermaphroditic connector 90b, which is correspondingly electrically connected to a complementary socket 121 of the second transformer 120.
  • first transformer 1 10 About a first power supply 1 15, the first transformer 1 10 z. B. with a power supply network (not shown in Fig. 4), which z. B. at a voltage of 1 10 V or 230 V is connected.
  • the fed voltage is transformed to a transmission voltage of up to 1000 V AC or 1500 V DC. Thereby can be transmitted via the electro-optical cable 1 electrical energy with minimal loss of conduction.
  • the second transformer 120 which z. B. is designed as a controllable transformer, the transmission voltage to the operating voltages required in the mobile electrical power grid, z. B. 1 10 V or 230 V, and via a second power supply 125 in the mobile electrical power grid (not shown in Fig. 4) are fed.
  • the braid 20 of the electro-optical cable 1 functions as a phase conductor, while the stranded wire layer 40 is used as a neutral conductor. This minimizes the risk of danger to persons if the outer cable areas are damaged.
  • the hermaphroditic connectors 90a, 90b effectively prevent inadvertent reverse polarity of the two braids 20, 40.
  • Parallel to the electrical energy, for example, data can be transmitted via the optical waveguides 12a, 12b, 12c, 12d arranged in the central loose tube 10.
  • So z. Example possible to accommodate in the central loose tube 10 less than or more than four optical fibers 12a, 12b, 12c, 12d. Likewise, it is conceivable to design the four optical waveguides 12a, 12b, 12c, 12d differently. If this is expedient, the optical waveguide z. B. have different thicknesses. Likewise, instead of or in addition to the primary sheaths 13a, 13b, 13c, 13d, additional sheaths may be present.
  • strain relief layer 50 it is also conceivable to omit the strain relief layer 50 and instead integrate, for example, reinforcing elements and / or tensile fibers in the outer shell.
  • additional layers of stranded wires at a suitable location in the electro-optical cable 1.
  • the additional layers can serve depending on the material as electrical conductors and / or tensile elements. In principle, it is also conceivable to deviate from a circular cross-section and z. B. to provide an oval cross-sectional shape.
  • the dimensions indicated, and particularly the configurations of the layers 20 and 40 are to be understood as illustrative only and may be modified according to the requirements, for example as mentioned in the general part of the specification.
  • a novel electro-optical cable has been created, which is characterized in particular by improved flexural flexibility and improved mechanical strength and robustness.
  • the cable according to the invention is more flexible and enables safe and efficient energy and / or data transmission even under harsh conditions.

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  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Communication Cables (AREA)
  • Insulated Conductors (AREA)

Abstract

L'invention concerne un câble électro-optique (1) destiné à transmettre des données et/ou de l'énergie, qui comporte un faisceau de fibres central (10) dans lequel se trouve au moins un guide d'onde optique (12a, 12b, 12c, 12d), le faisceau de fibres central (10) étant entouré, dans un agencement coaxial, d'au moins une première matière tissée tubulaire électroconductrice (20). Au moins une seconde couche électroconductrice de forme tubulaire, se présentant sous forme de couche (40) toronnée de fils métalliques, est située coaxialement autour du faisceau de fibres central (10).
PCT/CH2010/000230 2009-09-25 2010-09-27 Câble électro-optique WO2011035450A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1479/09 2009-09-25
CH01479/09A CH701871A1 (de) 2009-09-25 2009-09-25 Elektrooptisches Kabel.

Publications (2)

Publication Number Publication Date
WO2011035450A2 true WO2011035450A2 (fr) 2011-03-31
WO2011035450A3 WO2011035450A3 (fr) 2011-05-26

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PCT/CH2010/000230 WO2011035450A2 (fr) 2009-09-25 2010-09-27 Câble électro-optique

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CH (1) CH701871A1 (fr)
WO (1) WO2011035450A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011105000U1 (de) 2011-08-25 2011-12-20 Amphenol-Tuchel Electronics Gmbh Elektrooptisches Kabel
DE102012014944A1 (de) * 2012-07-30 2014-01-30 Leoni Kabel Holding Gmbh Koaxialkabel für Hochleistungsanwendungen
EP3398195B1 (fr) * 2015-12-28 2021-03-31 Prysmian S.p.A. Câble de fond de trou à diamètre réduit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5557698A (en) 1994-08-19 1996-09-17 Belden Wire & Cable Company Coaxial fiber optical cable
WO2007006167A1 (fr) 2005-07-14 2007-01-18 Brugg Kabel Ag Cable de communication et de puissance electrooptique

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO153511C (no) * 1983-08-25 1986-04-02 Standard Tel Kabelfab As Brann-og oljeresistent kabel.
CA2140748C (fr) * 1993-05-21 1999-08-10 Philip K. Schultz Cable de diametre reduit pour instruments de fond de forage
DE202005018553U1 (de) * 2004-11-24 2006-01-26 Highyag Lasertechnologie Gmbh Schutzeinrichtung für Lichtleitfasern

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5557698A (en) 1994-08-19 1996-09-17 Belden Wire & Cable Company Coaxial fiber optical cable
WO2007006167A1 (fr) 2005-07-14 2007-01-18 Brugg Kabel Ag Cable de communication et de puissance electrooptique

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011105000U1 (de) 2011-08-25 2011-12-20 Amphenol-Tuchel Electronics Gmbh Elektrooptisches Kabel
DE102012014944A1 (de) * 2012-07-30 2014-01-30 Leoni Kabel Holding Gmbh Koaxialkabel für Hochleistungsanwendungen
EP3398195B1 (fr) * 2015-12-28 2021-03-31 Prysmian S.p.A. Câble de fond de trou à diamètre réduit

Also Published As

Publication number Publication date
CH701871A1 (de) 2011-03-31
WO2011035450A3 (fr) 2011-05-26

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