EP2071587B1 - Câble à haute tension pour récepteurs mobiles - Google Patents

Câble à haute tension pour récepteurs mobiles Download PDF

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Publication number
EP2071587B1
EP2071587B1 EP07291473A EP07291473A EP2071587B1 EP 2071587 B1 EP2071587 B1 EP 2071587B1 EP 07291473 A EP07291473 A EP 07291473A EP 07291473 A EP07291473 A EP 07291473A EP 2071587 B1 EP2071587 B1 EP 2071587B1
Authority
EP
European Patent Office
Prior art keywords
layer
cable according
conductive layer
electrically conductive
earthing conductor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP07291473A
Other languages
German (de)
English (en)
Other versions
EP2071587A1 (fr
Inventor
Walter Winkelbauer
Heinz-Will Hamacher
Georg Talian
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.)
Nexans SA
Original Assignee
Nexans SA
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 Nexans SA filed Critical Nexans SA
Priority to AT07291473T priority Critical patent/ATE478427T1/de
Priority to EP07291473A priority patent/EP2071587B1/fr
Priority to DE502007004818T priority patent/DE502007004818D1/de
Priority to AU2008246262A priority patent/AU2008246262B2/en
Publication of EP2071587A1 publication Critical patent/EP2071587A1/fr
Application granted granted Critical
Publication of EP2071587B1 publication Critical patent/EP2071587B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
    • H01B7/328—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising violation sensing means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
    • H01B1/026—Alloys based on copper
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/48—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials
    • H01B3/485—Other fibrous materials fabric
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
    • H01B7/041—Flexible cables, conductors, or cords, e.g. trailing cables attached to mobile objects, e.g. portable tools, elevators, mining equipment, hoisting cables

Definitions

  • the invention relates to a power line for portable consumers, consisting of three insulated electrical conductor having cores, the conductors are each surrounded by an inner conductive layer, an overlying insulation and an overlying outer conductive layer and at least one ground conductor, wherein each core a mounted over the outer conductive layer electrical screen and in which the unit of wires and earth conductor is surrounded by a common sheath of insulating material.
  • Such a power line - in the following called “line” - is used, for example, for power supply of open-pit machinery. It must be able to follow the movements of the machine without risk of damage in the long run, being exposed to constantly changing bending stresses and the harsh operation of an open pit.
  • the line can be used, for example, as along a given route guided trailing cable or as a reelable line, which is constantly unwound during the movement of a connected machine from a spool and wound up again on the same. It is monitored during operation for its functionality, so that errors, especially damage, can be detected as quickly as possible. Damage to the cable can lead to a phase / earth fault with a subsequent high-energy discharge, which can endanger people.
  • the line must therefore be disconnected from the power source as soon as possible.
  • the conductors and the earth conductor of the cable are connected to a monitoring unit.
  • the electrical contact resistance between the shields of the conductors with each other and the ground wire are very high in known, available in the market, so that at a phase or ground fault, only a relatively low current flows to the monitoring unit. Damage to a line is therefore determined only with delay and under certain circumstances not at all.
  • a power line for portable consumer according to the preamble of claim 1 is known from US-A-3614300 known.
  • the invention has for its object to make the line initially described so that damage the same can be detected faster.
  • the screen consists in each case of a voltage applied to the outer conductive layer of the wires first layer of an electrically conductive plastic fleece and arranged above, applied to the plastic nonwoven second layer of an electrically conductive rubberized fabric tape.
  • the electrical conductivity of the existing of the two electrically conductive layers screen is so much increased over known designs that the electrical contact resistance between the screens of the three conductors and the ground conductor of this line is reduced by a factor of about 10. It is about 10 ⁇ or less.
  • a phase / ground fault a correspondingly high current flows to the monitoring unit, so that the same is detected immediately and the line can be disconnected as quickly as possible from the power source.
  • the possible contact voltage is so substantially reduced by the low-impedance phase / Erdschfuß that a risk to people can be excluded.
  • the metal with which the plastic fleece is made electrically conductive is deposited in a known technique, for example from the vapor phase. It not only settles on the outer surface of the nonwoven material, but also penetrates into it and envelops its inner fibers, which are known to be held together disorderly in the nonwoven material.
  • the plastic fleece is then so "penetrating" coated. It thus has a porous, but almost complete closed metal layer.
  • Fig. 1 is very schematically shown an arrangement with a machine 1, which is in the direction of the double arrow 2 back and forth movable. It is connected via a power line 3 - hereinafter referred to as "line 3" - connected to a device 4, in which there are at least one voltage source for powering the machine 1 and a monitoring unit 5, to which the line 3 is connected.
  • line 3 hereinafter referred to as "line 3" - connected to a device 4, in which there are at least one voltage source for powering the machine 1 and a monitoring unit 5, to which the line 3 is connected.
  • the line 3 is in accordance Fig. 2 for example, from three constructed of insulated electrical conductors cores 6, 7 and 8, their more detailed structure Fig. 4
  • the unit of cores 6, 7 and 8 and earth conductor 9 is surrounded by an inner jacket 10 made of insulating material, which fills all the outer gusset of the line 3. It consists for example of rubber and is produced by means of an extruder.
  • an outer jacket 11 is attached made of insulating material. It is advantageously made of chlorinated rubber and is also made by extrusion.
  • the earth conductor is divided into three sub-conductors 12, 13 and 14, which lie in the interstices between the wires 6, 7 and 8. Also in this embodiment of the line 3 inner shell 10 and outer shell 11 are present. The inner shell 10 also fills all the outer gusset of the line 3 here.
  • the wires 6, 7 and 8 of the line 3 exist according to Fig. 4 each example of a conductor 15, which is advantageously designed as a stranded conductor made of copper. It can be made of fine or very fine wire. The individual wires can also be tinned.
  • a conductor 15 Above the conductor 15 is disposed an inner conductive layer 16, which may be produced by extrusion or by winding with a belt.
  • the inner conductive layer 16 is made of graphite, for example. It is surrounded by an existing example of polyvinyl chloride or polyethylene insulation 17, over which an outer conductive layer 18 is attached.
  • the outer conductive layer 18 can also be made of graphite and also be produced by extrusion or harness. Both conductive layers can also consist of an insulating material made semiconductive by the addition of carbon black.
  • an electrically effective screen S is mounted, which is constructed of a first layer adjacent to the same 19 and a second layer 20 surrounding the same gap-free.
  • the two layers of the screen S are in Fig. 4 indicated by a dashed line as two different, separate layers.
  • the first layer 19 is made of an electrically conductive plastic fleece which may be longitudinally formed around the outer conductive layer 18 or wrapped around it with an overlap of, for example, 15%, each creating a completely closed sheath.
  • the plastic fleece may for example consist of nylon or other suitable plastics. Its wall thickness or thickness is preferably between 80 .mu.m and 150 .mu.m.
  • a good electrically conductive metal is used, in particular copper.
  • the copper or other good electrical conductivity metal is transferred to the molten state for the metallization and deposited from the vapor phase on the nonwoven material.
  • the copper also penetrates into the nonwoven material and wraps around the fibers held there disorderly. Overall, a porous, but almost closed copper layer is produced on and in the plastic fleece.
  • the electrical resistance of the plastic fleece is less than 0.5 ⁇ .
  • the second layer 20 consists for example of an electrically conductive rubberized fabric tape based on rayon.
  • the fabric tape is advantageously graphitized on both sides electrically conductive graphite. It has a maximum surface resistance of 400 ⁇ .
  • a corresponding strip having a thickness preferably between 250 ⁇ m and 320 ⁇ m is wound around the first layer 19 with an overlap of, for example, 15%.
  • the screen S has a total wall thickness, which is advantageously about 0.4 mm.
  • the earth conductor 9 is advantageously designed as a strand consisting of copper wires in the form of a strand. It may be surrounded in an advantageous embodiment of a layer of an electrically conductive rubberized fabric tape, which may be carried out in the same manner as the fabric tape of the layer 20 of the screen S.

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Insulated Conductors (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Cable Accessories (AREA)

Claims (8)

  1. Câble d'energie pour appareillage mobile, composé de trois fils présentant des conducteurs électriques isolés, dont les conducteurs sont respectivement entourés d'une couche conductrice intérieure, d'un isolant disposé au-dessus de celle-ci et d'une couche conductrice extérieure disposée par-dessus celui-ci, ainsi qu'au moins un conducteur de terre, chaque fil présentant un blindage électrique appliqué par-dessus la couche conductrice extérieure et l'ensemble constitué des fils et du conducteur de terre étant entouré d'une enveloppe commune en matériau isolant, caractérisé en ce que le blindage (S) se compose à chaque fois d'une première couche (19) de toison en matière plastique électriquement conductrice qui repose sur la couche conductrice extérieure (18) des fils (6, 7, 8) et d'une deuxième couche (20) en une bande tissée caoutchoutée électriquement conductrice disposée par-dessus la première et reposant sur la toison en matière plastique.
  2. Câble selon la revendication 1, caractérisé en ce que la résistance électrique du blindage (S) est inférieure à 10 Q.
  3. Câble selon la revendication 1 ou 2, caractérisé en ce que la toison en matière plastique électriquement conductrice est recouverte de manière pénétrante d'un métal bon conducteur d'électricité, de préférence du cuivre, qui est appliqué sur et dans la toison en matière plastique par déposition en phase vapeur.
  4. Câble selon l'une des revendications 1 à 3, caractérisé en ce que le conducteur de terre (9) est un faisceau de brins composé de fils en cuivre.
  5. Câble selon la revendication 4, caractérisé en ce que le conducteur de terre (9) est entouré d'une couche constituée d'un bande tissée caoutchoutée conductrice.
  6. Câble selon la revendication 4 ou 5, caractérisé en ce que le conducteur de terre est divisé en trois conducteurs partiels (12,13,14) qui se trouvent dans les interstices entre les fils (6,7,8).
  7. Câble selon l'une des revendications 1 à 6, caractérisé en ce que l'enveloppe (11) se compose de caoutchouc chloré.
  8. Câble selon l'une des revendications 1 à 7, caractérisé en ce que l'ensemble constitué des fils (6, 7,8) et du conducteur de terre est entouré par une enveloppe intérieure (10) constituée de préférence de caoutchouc par-dessus laquelle est appliquée l'enveloppe (11).
EP07291473A 2007-12-06 2007-12-06 Câble à haute tension pour récepteurs mobiles Not-in-force EP2071587B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT07291473T ATE478427T1 (de) 2007-12-06 2007-12-06 Starkstromleitung für ortsveränderliche verbraucher
EP07291473A EP2071587B1 (fr) 2007-12-06 2007-12-06 Câble à haute tension pour récepteurs mobiles
DE502007004818T DE502007004818D1 (de) 2007-12-06 2007-12-06 Starkstromleitung für ortsveränderliche Verbraucher
AU2008246262A AU2008246262B2 (en) 2007-12-06 2008-11-20 Electric Power Cable for Mobile Loads

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07291473A EP2071587B1 (fr) 2007-12-06 2007-12-06 Câble à haute tension pour récepteurs mobiles

Publications (2)

Publication Number Publication Date
EP2071587A1 EP2071587A1 (fr) 2009-06-17
EP2071587B1 true EP2071587B1 (fr) 2010-08-18

Family

ID=39323987

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07291473A Not-in-force EP2071587B1 (fr) 2007-12-06 2007-12-06 Câble à haute tension pour récepteurs mobiles

Country Status (4)

Country Link
EP (1) EP2071587B1 (fr)
AT (1) ATE478427T1 (fr)
AU (1) AU2008246262B2 (fr)
DE (1) DE502007004818D1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021209022A1 (de) 2021-08-17 2023-02-23 Leoni Bordnetz-Systeme Gmbh Straßenfahrzeug sowie elektrische Leitung
DE102021124869A1 (de) * 2021-09-27 2023-03-30 KEBA Energy Automation GmbH Ladekabel für eine Ladestation, Ladestation, System mit einer Mehrzahl von Ladestationen und Verfahren zum Betreiben einer Ladestation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1731153U (de) * 1953-01-13 1956-10-04 Siemens Ag Metallmantelfreie gummiisolierte mehradrige niederspannungs-starkstromleitung mit ueber den einzelnen adern angeordneten, als ueberwachungsleiter dienenden leitgummischichten.
US3614300A (en) * 1970-10-22 1971-10-19 Anaconda Wire & Cable Co Power cable with polypropylene covered ground-check strand
DE3306501A1 (de) * 1983-02-24 1984-08-30 Kaiser Aluminium Kabelwerk GmbH, 1000 Berlin Starkstromkabel
EP1736999A1 (fr) * 2005-06-24 2006-12-27 Nexans Ligne électrique flexible

Also Published As

Publication number Publication date
AU2008246262B2 (en) 2013-11-14
DE502007004818D1 (de) 2010-09-30
AU2008246262A1 (en) 2009-06-25
ATE478427T1 (de) 2010-09-15
EP2071587A1 (fr) 2009-06-17

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