EP0996014B1 - Câble aérien isolé comportant un guide d'onde optique - Google Patents

Câble aérien isolé comportant un guide d'onde optique Download PDF

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Publication number
EP0996014B1
EP0996014B1 EP99121001A EP99121001A EP0996014B1 EP 0996014 B1 EP0996014 B1 EP 0996014B1 EP 99121001 A EP99121001 A EP 99121001A EP 99121001 A EP99121001 A EP 99121001A EP 0996014 B1 EP0996014 B1 EP 0996014B1
Authority
EP
European Patent Office
Prior art keywords
wires
cable according
sheath
overhead cable
overhead
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
EP99121001A
Other languages
German (de)
English (en)
Other versions
EP0996014A1 (fr
Inventor
Peter König
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.)
Draka Comteq Draka Telekom GmbH and Co KG
Original Assignee
Draka Comteq Draka Telekom GmbH and Co KG
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 Draka Comteq Draka Telekom GmbH and Co KG filed Critical Draka Comteq Draka Telekom GmbH and Co KG
Publication of EP0996014A1 publication Critical patent/EP0996014A1/fr
Application granted granted Critical
Publication of EP0996014B1 publication Critical patent/EP0996014B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01B9/00—Power cables
    • H01B9/005—Power cables including optical transmission elements

Definitions

  • the present invention relates to an insulated electrical Overhead cable according to the preamble of claim 1.
  • Such an overhead cable is known. It deals this is a weatherproof insulated overhead line a solid crosslinked polyethylene (VPE) dielectric.
  • the ladder is usually made of aluminum or out a so-called Aldrey alloy. They are round, stranded and condensed. The individual wires are to one Bundle stranded. By means of a pressing the Ladder compression is achieved that at the Cable sheath bordering conductor surface virtually gore-free is trained. This creates a deviating from the round shape Cross section of the wires.
  • the cables can be in High voltage range of about 0.6 to 36 kV can be used.
  • the overhead line can, for example, four Conductor bundles are made, preferably by longitudinal Nubs of the dielectric an identification of the three phase conductors and the center point conductor can.
  • a typical line of this type is known, for example, under the name NFA2X 0.6 / 1kV.
  • a flame-retarding process is preferably used for the crosslinking of the insulation.
  • the individual wires can preferably correspond to DIN 48200.
  • the permissible tensile stress of such a line is about 5 to 15 kp / mm 2 .
  • the pressing of the wires is - as already mentioned - made in particular for the purpose that takes place at the transition point conductor / insulation as possible a gore-free system. This is important in that, in the opposite case, technological problems may arise in the implementation of the crosslinking of the insulation.
  • a high-voltage overhead line known in which at least one conductor element is replaced by a tubular element, in the multiple optical fibers are arranged loosely.
  • This tubular element is flattened as seen in the radial direction designed, leaving more room for evasive action the optical fiber is obtained.
  • the known High-voltage overhead line cable is not to an electrical line of the type mentioned.
  • the specific problem of a line of the aforementioned Art is, however, that the compression of the wires for generating the smooth contact surface on the cable sheath at Presence of an optical waveguide, or an in a tubular element arranged optical waveguide, would lead to damage of the loose tube.
  • the present invention is therefore based on the problem starting from the isolated described above Overhead cable to design this so that it at the same time for information and energy transmission can be used, but on the one hand its mechanical Properties and other things in particular the am Cable jacket adjacent, almost gore-free training of Conductor interface may not be affected.
  • the pre-profiled wrapping wires can advantageously according to the invention, on the one hand, with a high packing density the conductor wires in the cable a circumferential chambering the metal bundle with the integrated one or more Fiber optic (s) can be achieved, which are the metal beam protects against damage during pressing, On the other hand, it is also possible, the gore-free Formation of the conductor interface already by the profiled To reach wrapping wires.
  • the segmented, electrically conductive enclosing the metal beam Case is according to the invention almost gap-free, so that a high packing density of the wires in the overhead line cable is reached. On the one hand, this can cause the known compression the wires are easily used for cable production On the other hand, the cable production can Alternatively, however, without the known compression of the Wires take place.
  • a first, shown in Fig. 1 embodiment of an inventive. isolated electrical overhead cable has metallic conductors that are stranded into a bundle Wires 1, 2 exist.
  • the metallic ladder can preferably be made of aluminum or an aluminum-containing Alloy (so-called Aldrey wires) exist.
  • the wires 1, 2 may preferably have diameters or in the case of a non-circular shape a diameter equivalent cross sectional dimension in Range of about 5 to 15 mm.
  • the cable has a, made of a dielectric existing, surrounding the conductor outer cable sheath. 3 on, wherein the voltage applied to the cable sheath 3 wires 1 a have such a cross section deviating from the round shape, that the bordering on the cable sheath 3 conductor surface 4 is formed almost gore free.
  • these are compacted by compression.
  • the cable sheath 3 can with advantage of cross-linked, in particular from technologically low-cost producible flame-retardant, Polyethylene (VPE) consist, whereby the wall thickness of the cable sheath 3 preferably in the range of about 1 to 3 mm can lie.
  • VPE Polyethylene
  • other materials, in particular other thermoplastics, can be used with advantage as materials for the cable sheath 3.
  • a metal beam loader 5 arranged with integrated optical waveguides 6.
  • the metal beam 5 is so pre-profiled Envelope wires 2 stranded that these sheath wires 2 a nearly gap-free, segmented, electrically conductive, the metal artery 5 enclosing envelope 7 form.
  • the Envelope wires 2 are surrounded by the pressed wires 1, wherein the compressed wires 1 to the cable sheath form adjacent gusset-free conductor surface 4.
  • the sheath wires 2 in a preferred manner in each case in cross section in the form of a circular ring segment and thus form an annular sheath 7.
  • Such a geometric cross-sectional shape of the sheath 7 has favorable, the mechanical strength of the line substantially mitbemer, polar and axial Area inertia and also moments resistance, so that the sheath 7 both in torsion (stranding) or lateral pressure (compression) as well as train and bending (usual load case after installation, wind load, ice load) optimal protection for the inside Metal beam 5 forms.
  • the usually required by overhead lines of the type described mechanical strength parameters, in particular the required allowable tensile stress of about 5 to 15 kgf / mm 2 can be easily guaranteed. In a compression, in particular damage to the metal beam 5 can not occur.
  • the metal beam loader 5 is in the first embodiment as Stranded central element in the overhead line cable according to the invention. It should be longitudinally watertight protected against corrosion be what by introducing overhead line within the area enclosed by the cable sheath 3 cross section the overhead line cable can happen.
  • the smooth on Cable sheath 3 adjacent conductor surface 4 can in particular a controlled flame crosslinking of a polyethylene material of the cable sheath 3 without complications, i. without any problems caused by melting or evaporating Grease, be carried out because near the cable sheath 3 the formation of any cavities in the fat could invade, is excluded.
  • the metal beam loader 5 has a metallic sleeve 8, as protection and strain relief of optical fibers 6 serves.
  • This sleeve 8 of the metal beam loader 5 may preferably be formed from a tube, the tube in particular a diameter of 1 to 4 mm and a Wall thickness of 0.15 to 0.2 mm. It is production engineering advantageous if the metal beam 5 made of tubular steel, in particular stainless steel strip is prepared, which, preferably by means of a Lasers, longitudinally welded. Inside the metal bundle 5 can with radial play and especially with excess length relative to the sleeve 8 one or more, preferably 1 to 24 optical waveguide 6 may be arranged. By game and excess length, for example, due to the weather Temperature fluctuations occurring different Length expansions or contractions of the metallic Sleeve 8 and the material of the optical waveguide 6 bill carried.
  • the overhead line cable, the sheath wires 2 not surrounded by pressed wires 1 be, but the bordering on the cable sheath 3 smooth Conductor surface 4 can also by the wrapping wires. 2 be educated yourself.
  • the production step of pressing can be advantageously eliminated in this way.
  • a third embodiment of a erfindungeassien Illustrated overhead line goes that the loose tube 5 is not only a central element, but also in an asymmetric stranding with other wires within that of the pre-profiled ones Enveloping wires 2 formed segmented, electrically conductive sheath 7 can be stranded.
  • the fourth embodiment (Fig. 4) of an inventive Overhead cable shows that the invention a wealth of possible combinations for design an overhead line cable and thus a very broad spectrum for its application offers.
  • a metal beam 5 with integrated optical fibers 6 and several round wires 9 within the Envelope wires 2 arranged are - as in first embodiment - the voltage applied to the cable sheath 3 outer wires 1 compacted by compression.
  • the Invention is not limited to the illustrated embodiments limited, but includes all as defined in the claims. Invention falling versions.
  • an overhead line according to the invention also several, especially three or four, bundles of stranded wires 1, 2, 9 and metal bundles 5, each of a Cable sheath 3 are surrounded.
  • the skilled person may further appropriate features for constructive design of an overhead line according to the invention, so for example - as described above - a Phase identification by longitudinal knobs on the cable sheath 3, provide.
  • a Phase identification by longitudinal knobs on the cable sheath 3 provide.
  • one against abrasion and corrosion protective sheath for the metal beam 5 may additionally be provided.
  • the stranding of the wires 1, 2, 9 and the metal beam core (s) 5 may preferably be a so-called Helix stranding, but also another type of Stranding are used.

Landscapes

  • Communication Cables (AREA)
  • Insulated Conductors (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Non-Insulated Conductors (AREA)

Claims (14)

  1. Câble électrique isolé à haute tension pour ligne aérienne
    comprenant des conducteurs électriques métalliques, en particulier en aluminium ou en alliage d'aluminium, qui sont composés de fils (1, 2, 9) câblés en au moins un faisceau et une gaine de câble extérieure (3) faite d'un diélectrique qui entoure les conducteurs, au moins les fils (1, 2) en contact avec la gaine (3) du câble présentant une section différente de la forme ronde de telle manière qu'ils forment une surface conductrice presque exempte de bourrage adjacente à la gaine (3) du câble,
    caractérisé par au moins une âme de faisceau métallique (5) disposée dans le volume intérieur, qui comprend un manchon métallique (8) et au moins un guide d'ondes lumineuses (6) disposé dans le manchon (8), l'âme de faisceau métallique (5) étant câblée avec des fils d'enveloppe (2) conducteurs de l'électricité préprofilés, dans une mesure telle que les fils d'enveloppe (2) forment un revêtement (7) en forme de couronne de cercle, segmenté, conducteur de l'électricité qui entoure l'âme de faisceau métallique (5) de telle manière qu'en absorbant les contraintes mécaniques qui se manifestent, les fils d'enveloppe (2) assurent une protection optimale lors de la fabrication et dans le cas de charge.
  2. Câble pour ligne aérienne selon la revendication 1,
    caractérisé en ce que les fils d'enveloppe (2) présentent chacun en section la forme d'un segment de couronne de cercle et forment un revêtement (7) en forme de couronne de cercle.
  3. Câble pour ligne aérienne selon la revendication 1 ou 2,
    caractérisé en ce qu'une âme de faisceau métallique (5) comprenant au moins un guide d'ondes lumineuses (6) est disposée au milieu à l'intérieur des fils d'enveloppe (2).
  4. Câble pour ligne aérienne selon la revendication 1 ou 2,
    caractérisé en ce qu'au moins une âme de faisceau métallique (5) possédant au moins un guide d'ondes lumineuses intégré (6) ainsi que plusieurs fils ronds (9) sont disposés à l'intérieur des fils d'enveloppe (2).
  5. Câble pour ligne aérienne selon une des revendications 1 à 4,
    caractérisé en ce que les fils d'enveloppe (2) forment la surface conductrice (4) adjacente à la gaine (3) du câble.
  6. Câble pour ligne aérienne selon une des revendications 1 à 4,
    caractérisé en ce que les fils d'enveloppe (2) sont entourés de fils comprimés (1), les fils comprimés (1) formant la surface conductrice (4) adjacente à la gaine (3) du câble.
  7. Câble pour ligne aérienne selon une des revendications 1 à 6,
    caractérisé en ce que la gaine (3) est faite de polyéthylène réticulé (VPE), en particulier de polyéthylène réticulé à la flamme.
  8. Câble pour ligne aérienne selon une des revendications 1 à 7,
    caractérisé par plusieurs, en particulier trois ou quatre, faisceaux de fils (1, 2, 9) et âmes de faisceaux métalliques (5) câblés qui sont entourés chacun d'une gaine de câble (3).
  9. Câble pour ligne aérienne selon une des revendications 1 à 8,
    caractérisé en ce que les fils (1, 2, 9) présentent un diamètre compris dans l'intervalle d'environ 5 à 15 mm.
  10. Câble pour ligne aérienne selon une des revendications 1 à 9,
    caractérisé en ce que la gaine (3) du câble présente une épaisseur de paroi comprise dans l'intervalle d'environ 1 à 3 mm.
  11. Câble pour ligne aérienne selon une des revendications 1 à 10,
    caractérisé en ce que l'âme de faisceau métallique (5) est protégée de la corrosion par de la graisse en formant un joint étanche à l'eau longitudinal.
  12. Câble pour ligne aérienne selon une des revendications 1 à 11
    caractérisé en ce que l'âme de faisceau métallique (5) possède un manchon (8) formé d'un petit tube, le petit tube présentant en particulier un diamètre de 1 à 4 mm et une épaisseur de paroi de 0,15 à 0,2 mm.
  13. Câble pour ligne aérienne selon une des revendications 1 à 12,
    caractérisé en ce que l'âme de faisceau métallique (5) est fabriquée en bande d'acier mise à la forme d'un tube qui est soudée longitudinalement, en particulier au moyen d'un laser.
  14. Câble pour ligne aérienne selon une des revendications 1 à 13,
    caractérisé en ce que des guides d'ondes lumineuses, en particulier au nombre de 1 à 24, sont disposés à l'intérieur de l'âme de faisceau métallique avec jeu radial, et en particulier avec un excès de longueur, par rapport au manchon.
EP99121001A 1998-10-20 1999-10-20 Câble aérien isolé comportant un guide d'onde optique Expired - Lifetime EP0996014B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29818646U DE29818646U1 (de) 1998-10-20 1998-10-20 Isoliertes elektrisches Freileitungskabel mit Lichtwellenleiter
DE29818646U 1998-10-20

Publications (2)

Publication Number Publication Date
EP0996014A1 EP0996014A1 (fr) 2000-04-26
EP0996014B1 true EP0996014B1 (fr) 2005-01-12

Family

ID=8064109

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99121001A Expired - Lifetime EP0996014B1 (fr) 1998-10-20 1999-10-20 Câble aérien isolé comportant un guide d'onde optique

Country Status (3)

Country Link
EP (1) EP0996014B1 (fr)
AT (1) ATE287094T1 (fr)
DE (2) DE29818646U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020264498A1 (fr) * 2019-06-28 2020-12-30 Schlumberger Technology Corporation Ensemble fil de fibre optique sensible mécaniquement

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105679451A (zh) * 2016-04-07 2016-06-15 江苏通光强能输电线科技有限公司 一种电缆温度在线监测用光纤复合导体

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09219117A (ja) * 1996-02-08 1997-08-19 Fujikura Ltd 電力線と光通信線を複合した架空地線

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE58905283D1 (de) * 1988-12-05 1993-09-16 Kupferdrath Isolierwerk Ag Wil Selbsttragendes optisches kabel.
JP2989854B2 (ja) * 1990-06-13 1999-12-13 株式会社フジクラ 耐雷性撚線

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09219117A (ja) * 1996-02-08 1997-08-19 Fujikura Ltd 電力線と光通信線を複合した架空地線

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020264498A1 (fr) * 2019-06-28 2020-12-30 Schlumberger Technology Corporation Ensemble fil de fibre optique sensible mécaniquement
GB2599555A (en) * 2019-06-28 2022-04-06 Schlumberger Technology Bv Mechanically responsive fiber optic thread assembly
GB2599555B (en) * 2019-06-28 2024-02-07 Schlumberger Technology Bv Mechanically responsive fiber optic thread assembly

Also Published As

Publication number Publication date
DE29818646U1 (de) 1999-02-11
DE59911433D1 (de) 2005-02-17
ATE287094T1 (de) 2005-01-15
EP0996014A1 (fr) 2000-04-26

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