EP3180794B1 - Câble électrique - Google Patents

Câble électrique Download PDF

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Publication number
EP3180794B1
EP3180794B1 EP15750696.5A EP15750696A EP3180794B1 EP 3180794 B1 EP3180794 B1 EP 3180794B1 EP 15750696 A EP15750696 A EP 15750696A EP 3180794 B1 EP3180794 B1 EP 3180794B1
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EP
European Patent Office
Prior art keywords
electrical cable
neutral
cable according
wires
conductors
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.)
Active
Application number
EP15750696.5A
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German (de)
English (en)
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EP3180794A1 (fr
Inventor
Christoph Studer
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Individual
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Individual
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Publication of EP3180794A1 publication Critical patent/EP3180794A1/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
    • 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
    • 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
    • H01B7/0009—Details relating to the conductive cores
    • 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
    • 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
    • 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
    • H01B9/00—Power cables
    • H01B9/006—Constructional features relating to the conductors

Definitions

  • the invention relates to an electric cable for the electrical supply of an aircraft, engine or the like, for at least partially higher frequencies of preferably 400 Hz, with a central neutral and / or return conductor and at least six concentrically arranged around the latter arranged phase conductors.
  • Such electrical cables are used for the transport of large currents with higher frequencies in aircraft and in the ground. Due to the overall symmetrical structure and the two conductors Split phase design, they also have symmetrical and optimally reduced inductive voltage drops with minimized skin effect and are therefore used in particular for longer distances. Particularly in the case of aircraft, the electrical supply with high-frequency current is known to have the advantage that lighter generators, motors and similar, in particular inductively acting components or equipment can be used in the aircraft.
  • the neutral and / or return conductor is designed as a one-piece, solid or flexible neutral conductor
  • the symmetrical structure of the cable entails that the neutral conductor in the Center of the cable is guided.
  • the cable When using the cable as a flexible umbilical cable, as is the case when using it as an electrical power cable for aircraft, they are when not in use on drums rolled or unrolled while docking with the aircraft and pulled along the asphalt floor or the like. It is then the fact that in the center of the cable is an active single core, which is subjected by torsion of a heavy mechanical load, because the supply cables are repeatedly exposed to a bending load due to the repeated rolling up and down.
  • the neutral conductor usually has only half the cross section of the phase conductors (each with 2 phases).
  • the neutral conductor causes an addition of the generated harmonics in the neutral conductor, the skin effect and thus the load in this disadvantageously increased.
  • the invention has for its object to provide an electric cable of the type mentioned, which has an optimal flexibility and torsional resistance, but still ensures optimum electrical values, without the risk of breakage of the central neutral and / or return conductor. Furthermore, the adverse skin effect in the neutral or return conductor should be reduced while maintaining the same diameter of the neutral conductor.
  • the neutral and / or return conductor is constructed from a plurality of individually insulated neutral conductors whose overall cross-section approximately corresponds to the cross-section of a single solid central conductor.
  • the new cable design also allows redundancy of the central neutral and / or return conductor, as it is practically impossible, unlike conventional designs with only one solid neutral, that all six individual conductors of the multipart neutral conductor can break at the same time. As a result, the risk of a neutral break is greatly reduced, since there is no more active conductor in the center of the electric cable and a multiple redundancy is effective.
  • the electric cable shown has a central core network as a neutral and / or return conductor 1 and six concentrically distributed around this uniformly distributed phase conductors 2a, 2b, 3a, 3b, 4a, 4b, each phase on two symmetrically opposite phase conductors 2a, 2b, 3a, 3b, and 4a, 4b is divided.
  • the six phase conductors 2a to 4b have, for example, a cross section of 35 mm 2 and are made of bare and finely stranded copper strands 5.
  • These copper strands 5 are designed according to the standard IEC 60228, at least Class 5, wherein each phase conductor is provided with an insulation 6 made of a preferably crosslinked plastic insulation, such as EPR.
  • the electric cable is further equipped with an inner sheath 13 of orange polyurethane as abrasion display and an outer sheath 14 of yellow polyurethane with intermediate fiber reinforcement 15.
  • an inner sheath 13 of orange polyurethane as abrasion display
  • other colors could be used.
  • the electric cable is constructed from six individually insulated neutral conductors 16, each with a single insulation 19, wherein the neutral conductors 16 and the phase conductors 2a, 2b, 3a, 3b, 4a, 4b are each formed from a plurality of wires.
  • the neutral conductors 16 are advantageously constructed with SRC (Special Round Conductor) soils or Unilay strands with a cross section of 6 mm 2 in each case, that is to say totally 36 mm 2 , which corresponds to the cross section of a conventional non-split neutral conductor.
  • SRC Specific Round Conductor
  • a number of strands are usually wound in a rope shape around a center made of copper strands 8, bare and finely stranded, with an insulation 9 made of EPR, crosslinked.
  • the individual neutral conductors 16 of the split neutral and / or return conductor 1 are arranged around a central element 17 made of plastic material and have a thin sheathing 18 or banding comprising them, likewise made of insulating material.
  • the neutral conductors 16 are made of finely stranded copper strands and isolated individually with an insulation 19 made of a preferably crosslinked plastic, for example a polyolefin copolymer, thin-walled and electron-beam crosslinked.
  • the risk of central conductor breakage can be greatly reduced compared to the prior art without changing the overall cross section of the cable and adversely affecting its excellent electrical properties. Since virtually all six individual neutral conductors 16 can not break at the same time, there results a multiple redundancy of the neutral conductor divided according to the invention, which entails a great reduction in the risk of a neutral conductor break, especially since no active conductor is present in the geometric center of the cable.
  • the electric cable comprises within the scope of the invention between the adjacent phase conductors 2a, 2b, 3a, 3b, 4a, 4b on the outside additionally uniformly distributed over the circumference outside picks 10, which have spiked conductors 11 as fours each 4x1 mm 2 , which also made of fine-stranded copper strands with each one insulation 12 are provided from a turn preferably crosslinked plastic insulation.
  • the stranding direction of the insulated neutral conductors 16 is the same as that of the phase conductors 2a, 2b, 3a, 3b, 4a, 4b.
  • the lay lengths are dimensioned to each other such that in torsion, the changes in length of the inner neutral conductor are approximately equal to those of the outer phase conductors.
  • additional neutral conductors may be included in the outer spikes of the cable, by means of which allow a further increase in the total cross-section of the neutral and / or return conductor, for example, on the full phase cross-section.

Landscapes

  • Insulated Conductors (AREA)
  • Communication Cables (AREA)

Claims (12)

  1. Câble électrique pour l'alimentation électrique d'un aéronef, d'un moteur ou analogue, pour des fréquences assez hautes, au moins en partie, de préférence de 400 Hz, comprenant un conducteur (1) central neutre et/ou de retour et au moins un certain nombre de conducteurs (2a, 2b, 3a, 3b, 4a, 4b) de phase disposés concentriquement en étant répartis autour de ce dernier, caractérisé en ce que
    le conducteur (1) central neutre et/ou de retour est formé de plusieurs conducteurs (16) neutres ayant chacun une isolation (19) individuelle, les conducteurs (16) neutres étant formés, tout comme les conducteurs (2a, 2b, 3a, 3b, 4a, 4b) de phase, respectivement d'une pluralité de fils.
  2. Câble électrique suivant la revendication 1, caractérisé en ce que les plusieurs, de préférence six, conducteurs (16) neutres sont disposés autour d'un élément (17) central non conducteur de l'électricité.
  3. Câble électrique suivant la revendication 1 ou 2, caractérisé en ce que les conducteurs (16) neutres sont fabriqués chacun d'un ou de plusieurs torons, ayant un grand degré de remplissage en les fils minces à structure de cuivre.
  4. Câble électrique suivant la revendication 3, caractérisé en ce que les conducteurs (16) neutres sont fabriqués en toron SRC ou en toron unilay.
  5. Câble électrique suivant l'une des revendications précédentes 1 à 4, caractérisé en ce que les conducteurs (16) neutres sont constitués de fils torsadés d'un diamètre compris entre 0,05 mm et 0,75 mm.
  6. Câble électrique suivant l'une des revendications précédentes 1 à 5, caractérisé en ce que les conducteurs (16) neutres sont constitués de torons torsadés sans structure géométrique, ayant chacun une pluralité de fils, par exemple entre 700 et 800 pour une section transversale de 6 mm2 et ceux-ci sont gainés d'une feuille, comme isolation (19).
  7. Câble électrique suivant l'une des revendications précédentes 1 à 6, caractérisé en ce que les conducteurs (16) neutres sont pourvus chacun d'une isolation (19) en matière plastique, très mince et réticulée, qui a une épaisseur de paroi de 0,1 mm à 1 mm.
  8. Câble électrique suivant l'une des revendications précédentes 1 à 7, caractérisé en ce qu'entre le conducteurs (2a, 2b, 3a, 3b, 4a, 4b) de phase voisins passe, du côté extérieur, respectivement au moins un bardage (10) extérieur ayant un certain nombre de conducteurs (11) de bardage.
  9. Câble électrique suivant la revendication 8, caractérisé en ce que chaque, de préférence quatre, conducteurs (11) de bardage sont prévus, ayant chacun une isolation (12), qui peuvent être utilisés à des fins de mesure, de commande et/ou de régulation.
  10. Câble électrique suivant l'une des revendications précédentes 1 à 9, caractérisé en ce que les conducteurs (2a, 2b, 3a, 3b, 4a, 4b) de phase, qui sont répartis chacun en deux conducteurs (2a, 2b, 3a, 3b et 4a, 4b) de phase opposés symétriquement, et les conducteurs (11) supplémentaires de bardage sont entourés d'une gaine (13) intérieure, en une matière plastique colorée les entourant, et d'une gaine (14) extérieure, en une matière plastique autrement colorée entourant cette dernière.
  11. Câble électrique suivant l'une des revendications précédentes 1 à 10, caractérisé en ce que le sens de torsion des conducteurs (16) neutres est le même que celui des conducteurs (2a, 2b, 3a, 3b, 4a, 4b) de phase.
  12. Câble électrique suivant la revendication 11, caractérisé en ce que les pas de câblage sont adaptés les uns aux autres, de manière à ce qu'à la torsion, les variations de longueur des conducteurs (16) neutres intérieurs soient à peu près les mêmes que celles des conducteurs ('2a, 2b, 3a, 3b, 4a, 4b) de phase.2
EP15750696.5A 2014-08-11 2015-08-10 Câble électrique Active EP3180794B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01213/14A CH709972B1 (de) 2014-08-11 2014-08-11 Elektrokabel.
PCT/EP2015/068394 WO2016023872A1 (fr) 2014-08-11 2015-08-10 Câble électrique

Publications (2)

Publication Number Publication Date
EP3180794A1 EP3180794A1 (fr) 2017-06-21
EP3180794B1 true EP3180794B1 (fr) 2018-07-11

Family

ID=53872040

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15750696.5A Active EP3180794B1 (fr) 2014-08-11 2015-08-10 Câble électrique

Country Status (6)

Country Link
US (1) US10049790B2 (fr)
EP (1) EP3180794B1 (fr)
JP (1) JP2017525119A (fr)
CN (1) CN107148656B (fr)
CH (1) CH709972B1 (fr)
WO (1) WO2016023872A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH709972B1 (de) 2014-08-11 2018-12-14 Studer Christoph Elektrokabel.
CH713982A2 (de) 2017-07-14 2019-01-15 Studer Aeronautical Ag Elektrokabel für die Stromversorgung von Flugzeugen, Fahrzeugen, Schiffen oder anderen Einrichtungen.
US10847283B2 (en) * 2017-12-21 2020-11-24 Nexans Top drive service loop cable assembly with heating elements
JP2021022491A (ja) * 2019-07-29 2021-02-18 モレックス エルエルシー 複合ケーブル

Family Cites Families (21)

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Publication number Priority date Publication date Assignee Title
US2729696A (en) * 1955-06-29 1956-01-03 Gen Electric Three conductor rip cord
US3621118A (en) * 1970-07-31 1971-11-16 Anaconda Wire & Cable Co Power cable for portable machines
US5110999A (en) * 1990-12-04 1992-05-05 Todd Barbera Audiophile cable transferring power substantially free from phase delays
US5451718A (en) * 1993-04-08 1995-09-19 Southwire Company Mechanically bonded metal sheath for power cable
ATE250817T1 (de) * 1996-05-29 2003-10-15 Abb Ab Leiter für hochspannungswicklungen und rotierende elektrische maschine mit einem solchen leiter
EP1236764A1 (fr) 2001-03-02 2002-09-04 Studer Draht-und Kabelwerk AG Cable ignifugé avec une protection contre rongeurs et/ou termites
US6884935B2 (en) * 2002-03-05 2005-04-26 Robert H. Whidden Method of transmitting electrical power
CH695967A5 (de) 2002-04-03 2006-10-31 Studer Ag Draht & Kabelwerk Elektrokabel.
CH696011A5 (de) 2002-05-15 2006-11-15 Studer Ag Draht & Kabelwerk Strangförmiges Produkt mit Anschluss- und/oder Befestigungsmitteln.
CH698074B1 (de) 2005-11-11 2009-05-15 Studer Ag Draht & Kabelwerk Mehrleiterkabel für die Übertragung von rechteckig verlaufenden Wechselströmen.
US9123458B2 (en) * 2009-06-09 2015-09-01 Essential Sound Products, Inc. Power cable
EP2525370A1 (fr) * 2011-05-16 2012-11-21 AEG Power Solutions B.V. Câble d'énergie à haute fréquence
US8579652B2 (en) 2011-06-16 2013-11-12 Leoni Studer Ag Fastening device for an electric cable
CN203013290U (zh) * 2012-11-16 2013-06-19 江苏远洋东泽电缆股份有限公司 舰船用400Hz并联用平衡结构电缆
CN203150163U (zh) * 2013-01-11 2013-08-21 安徽龙庵电缆集团有限公司 一种采煤机用阻燃变频电缆
CH708133B1 (de) 2013-06-03 2017-06-30 Leoni Studer Ag Elektrokabel, insbesondere für Solar- bzw. Windkraftwerke.
EP2863398A1 (fr) * 2013-10-18 2015-04-22 Nexans Conducteur toronné étanche à l'eau et au gaz et cordon le comprenant
CN203706703U (zh) * 2013-12-25 2014-07-09 特变电工(德阳)电缆股份有限公司 一种向飞机输电用电缆
CH709972B1 (de) 2014-08-11 2018-12-14 Studer Christoph Elektrokabel.
US9545743B2 (en) * 2014-08-18 2017-01-17 Craig M Joyce Readily strippable cable
US20160125539A1 (en) * 2014-11-04 2016-05-05 Mehmet Alpay Kaya Multifactorial Leveraged Indexed Investment Product

Non-Patent Citations (1)

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Also Published As

Publication number Publication date
EP3180794A1 (fr) 2017-06-21
US10049790B2 (en) 2018-08-14
JP2017525119A (ja) 2017-08-31
CH709972B1 (de) 2018-12-14
CH709972A2 (de) 2016-02-15
WO2016023872A1 (fr) 2016-02-18
CN107148656B (zh) 2019-10-01
CN107148656A (zh) 2017-09-08
US20170229215A1 (en) 2017-08-10

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