WO2000020909A1 - Baguette helicoidale et son procede de production - Google Patents

Baguette helicoidale et son procede de production Download PDF

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Publication number
WO2000020909A1
WO2000020909A1 PCT/DE1999/003173 DE9903173W WO0020909A1 WO 2000020909 A1 WO2000020909 A1 WO 2000020909A1 DE 9903173 W DE9903173 W DE 9903173W WO 0020909 A1 WO0020909 A1 WO 0020909A1
Authority
WO
WIPO (PCT)
Prior art keywords
resin
spiral
spiral rod
bundle
rod according
Prior art date
Application number
PCT/DE1999/003173
Other languages
German (de)
English (en)
Inventor
Ernst Mayr
Thomas Müller
Thomas Ottmann
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to EP99970169A priority Critical patent/EP1118031A1/fr
Publication of WO2000020909A1 publication Critical patent/WO2000020909A1/fr

Links

Classifications

    • 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
    • G02B6/4439—Auxiliary devices
    • G02B6/4457—Bobbins; Reels
    • G02B6/4458—Coiled, e.g. extensible helix
    • 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
    • G02B6/4422—Heterogeneous cables of the overhead type
    • 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
    • G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
    • G02B6/48—Overhead installation
    • G02B6/483—Installation of aerial type
    • 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
    • G02B6/4479—Manufacturing methods of optical cables

Definitions

  • the invention relates in particular to a spiral rod for guiding and / or holding an air cable containing optical transmission elements in the area of the mast of an overhead line.
  • ADL cables All-Dielectric-Lash cables
  • a self-supporting aerial cable is equipped with metal-free, concentrically arranged strain relief elements ("All-Dielectric-Self-Supporting" cable or ADSS cable) or with a molded steel suspension cable (Figure 8 cable) that absorbs the tensile forces
  • An ADL cable does not have its own support elements It is usually attached to the already installed earth or phase cable of the high-voltage overhead line by means of an adhesive / lashing tape (see, for example, WO 96/38892). Since the fiber-optic fibers lie in a helical shape with a defined excess length in the loose tube, the fibers are not mechanically stressed even under extreme conditions (storm, thick layer of ice).
  • the ADL cable held on the earth rope is often routed around the mast tip in an aluminum rod that is also attached to the earth rope and spirally coiled. Since under certain circumstances electricity also flows in the AI rod, the ADL cable in the area of the contact surfaces of the Al rod and earth rope can be damaged by burning or braising. To solve this problem, it has been suggested - to equip the center of the AI rod with an isolator element that prevents current flow (disadvantage: expensive),
  • the aim of the invention is to create a spiral rod with which, in particular, an ADL cable can be guided and / or held in the area of the mast of an overhead line without being damaged.
  • This object is achieved by a spiral rod having the features of patent claim 1.
  • a method for the cost-effective production of the spiral rod is to be specified.
  • the spiral rod preferably consists of a bundle of glass yarns or glass fibers (“glass rovings”) impregnated with resin, which is coated with a thin plastic layer.
  • the spiral rod can also be provided with an outer plastic layer that defines the rod thickness, the one that forms the spiral rod the resin-wetted glass fiber / glass yarn bundle and the multilayer plastic sheath has an internal diameter of typically 8-25 mm, adapted to the earth rope.
  • UV-stabilized thermoplastics in particular HDPE (high-density polyethylene) or UV-stabilized PP (polypropylene) can be considered as sheathing materials for the glass yarn / glass fiber bundle.
  • the glass yarn / glass fiber bundle, completely impregnated with resin and wetted, is provided simultaneously ("coextrusion") or successively (“tandem extrusion") with a multi-layer plastic sheath, then in one stroke on a rotating one in the direction of the longitudinal axis Longitudinally displaced tube wound and thereby formed into a spiral.
  • the glass yarns / fibers usually run off the supply reels in a slightly braked manner, in order to then be completely impregnated with resin in a vessel by deflecting them on cylindrical elements.
  • the bundle wetted with resin then passes through, for example, a nipple with 1-3 mm bore, which serves as a wiper for excess resin and defines the bundle thickness.
  • the preliminary product produced in this way is provided with a jacket consisting of a thermoplastic material by means of extruders. The product then runs on a plate or lightly braked onto a supply spool.
  • the lay length of the winding or spiral generated on the tube is typically 150 mm.
  • the spiral rod produced in this way is then tempered or cured at room temperature.
  • spirals can also be produced which, glued together, can be used as a so-called bottom spiral for the tensioning spiral of an ADSS cable.
  • a one- or two-component resin preferably epoxy resin with a sufficiently long pot life of, for example, 24 hours, is preferably used to impregnate the glass fibers.
  • the inner and outer plastic sheath is also preferably applied in tandem extrusion.
  • Figure 1 shows an embodiment of the spiral rod according to the present invention in a schematic side view.
  • FIG. 2 seen the spiral rod shown in FIG. 1 in the direction of its longitudinal axis
  • FIG. 3 shows a section through the spiral rod along the line A-A 'in Fig. 1.
  • Fig. 4 is an illustration of the process sequence for producing the spiral rod
  • FIG. 5 shows a representation of further process steps for the production of the helical rod.
  • the helical rod 1 shown schematically in FIGS. 1-3 serves to guide and hold an ADL cable when bypassing the tip of the mast of an overhead line. It consists of a glass yarn or glass fiber bundle 21 (outer diameter «1 - 3 mm) completely wetted with resin and a two-layer plastic antel 23/23, the thickness of which is in the range of about 1 - 2.5 mm.
  • S 100-200 mm
  • FIG. 4 shows an arrangement for producing the spiral rod 1 shown in FIGS. 1 to 3.
  • a one- or two-component resin preferably epoxy resin (pot life approx. 24 hours).
  • the glass yarn / glass fiber bundle thus produced is also precoated with the resin.
  • the bundle is again wetted with resin and passed through a scraper.
  • a nipple is used as a wiper, the bore of which is one
  • the glass yarn / glass fiber bundle 4 'provided with the still hot inner jacket 22' is slightly cooled and fed to a second extruder 12, which is the outer, approximately 1.5-2.5 mm thick and preferably made of UV-stabilized HDPE or PP Applies outer jacket 23.
  • a caterpillar take-off 18 generates the force required for the unwinding of the glass fiber / glass yarn 4 and the advance of the glass fiber / glass yarn bundle 4 '.
  • the intermediate product 41 thus produced is temporarily stored in a plate or on a drum 14.
  • the preliminary product 41 (encased glass fiber / glass yarn bundle 4 ′) which is temporarily stored on the drum 14 and is still bendable or flexible is processed further by applying it to one shown in FIG Tube 16 coiled.
  • the tube 16 has one of the earth rope thickness corresponding outer diameter of typically 8 - 25 mm and a length of a few meters depending on the number and type (lay length!) of the spiral rods to be manufactured. It is rotated around its longitudinal axis at a constant angular velocity and, at the same time, is shifted in the direction of the pipe longitudinal axis at a constant velocity.
  • the spiral 42 produced in this way can then be tempered to solidify the resin at a temperature of approximately 80 ° C. or allowed to harden at room temperature.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Ropes Or Cables (AREA)

Abstract

Dans le cas des spirales aluminium d'usage courant pour contourner le poteau d'une ligne aérienne, le câble ADL passant dans la spirale au sommet du poteau est souvent endommagé par usure ou des processus de carbonisation dans la zone des transitions vers le fil de terre. Pour y remédier, on réalise la baguette hélicoïdale (1) qui sert de spirale guide, dans des matériaux non électroconducteurs/isolants. Ainsi la baguette hélicoïdale (1) peut être composée, par exemple, d'un faisceau (21) de fibres de verre qui est en forme de spirale et est imprégné de résine et d'une gaine en PE (22, 23) qui est constituée notamment d'une double couche et qui enveloppe le faisceau (21).
PCT/DE1999/003173 1998-10-02 1999-10-01 Baguette helicoidale et son procede de production WO2000020909A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99970169A EP1118031A1 (fr) 1998-10-02 1999-10-01 Baguette helicoidale et son procede de production

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19845482.1 1998-10-02
DE19845482 1998-10-02

Publications (1)

Publication Number Publication Date
WO2000020909A1 true WO2000020909A1 (fr) 2000-04-13

Family

ID=7883230

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1999/003173 WO2000020909A1 (fr) 1998-10-02 1999-10-01 Baguette helicoidale et son procede de production

Country Status (2)

Country Link
EP (1) EP1118031A1 (fr)
WO (1) WO2000020909A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103885148A (zh) * 2014-04-16 2014-06-25 江苏藤仓亨通光电有限公司 一种用于对光纤束进行在线捆扎的装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2220284A1 (de) * 1972-04-25 1973-11-15 Ernst Dipl Phys Dr Remy Faserlichtleiter
FR2455296A1 (fr) * 1979-04-23 1980-11-21 Cordons Equipements Cordon a fibres optiques
US4852964A (en) * 1987-03-04 1989-08-01 Storm Products Co. Fiber optic coil cord
DE4400619A1 (de) * 1993-01-13 1994-07-14 Bergner Richard Gmbh Co Freileitung mit am Leitungsmast befestigter Kabelschlaufe
WO1996036087A1 (fr) * 1995-05-09 1996-11-14 Robert Bosch Gmbh Procede de production d'une antenne helicoidale et antenne helicoidale obtenue a l'aide dudit procede
WO1996038892A1 (fr) * 1995-06-02 1996-12-05 Siemens Aktiengesellschaft Procede d'installation d'un cable a fibres optiques sur le cable d'une ligne de transport de courant h.t.
WO1997039373A1 (fr) * 1996-04-12 1997-10-23 Siemens Aktiengesellschaft Procede de montage d'un cable a fibres optiques sur une ligne aerienne et dispositif pour la mise en oeuvre de ce procede
DE19706748A1 (de) * 1997-02-20 1998-08-27 Siemens Ag Hochspannungsfreileitung mit einem optischen Kabel

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2220284A1 (de) * 1972-04-25 1973-11-15 Ernst Dipl Phys Dr Remy Faserlichtleiter
FR2455296A1 (fr) * 1979-04-23 1980-11-21 Cordons Equipements Cordon a fibres optiques
US4852964A (en) * 1987-03-04 1989-08-01 Storm Products Co. Fiber optic coil cord
DE4400619A1 (de) * 1993-01-13 1994-07-14 Bergner Richard Gmbh Co Freileitung mit am Leitungsmast befestigter Kabelschlaufe
WO1996036087A1 (fr) * 1995-05-09 1996-11-14 Robert Bosch Gmbh Procede de production d'une antenne helicoidale et antenne helicoidale obtenue a l'aide dudit procede
WO1996038892A1 (fr) * 1995-06-02 1996-12-05 Siemens Aktiengesellschaft Procede d'installation d'un cable a fibres optiques sur le cable d'une ligne de transport de courant h.t.
WO1997039373A1 (fr) * 1996-04-12 1997-10-23 Siemens Aktiengesellschaft Procede de montage d'un cable a fibres optiques sur une ligne aerienne et dispositif pour la mise en oeuvre de ce procede
DE19706748A1 (de) * 1997-02-20 1998-08-27 Siemens Ag Hochspannungsfreileitung mit einem optischen Kabel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103885148A (zh) * 2014-04-16 2014-06-25 江苏藤仓亨通光电有限公司 一种用于对光纤束进行在线捆扎的装置

Also Published As

Publication number Publication date
EP1118031A1 (fr) 2001-07-25

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