EP1343178B1 - Elektrisches Kabel - Google Patents
Elektrisches Kabel Download PDFInfo
- Publication number
- EP1343178B1 EP1343178B1 EP02290563A EP02290563A EP1343178B1 EP 1343178 B1 EP1343178 B1 EP 1343178B1 EP 02290563 A EP02290563 A EP 02290563A EP 02290563 A EP02290563 A EP 02290563A EP 1343178 B1 EP1343178 B1 EP 1343178B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- central element
- core
- electrical cable
- cable
- winding
- 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
Links
- 239000004020 conductor Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000004804 winding Methods 0.000 claims description 8
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- -1 polytetrafluoroethylene Polymers 0.000 claims description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 2
- 229920000742 Cotton Polymers 0.000 claims 1
- 229920001169 thermoplastic Polymers 0.000 claims 1
- 239000004416 thermosoftening plastic Substances 0.000 claims 1
- 239000010426 asphalt Substances 0.000 description 4
- 239000004952 Polyamide Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000003000 extruded plastic Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Images
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
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1895—Internal space filling-up means
-
- 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
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
- H01B7/1885—Inter-layer adherence preventing means
Definitions
- the invention relates to an electrical cable according to the preamble of claim 1.
- Cables are used to illuminate airfields and other paved areas needed that can withstand high mechanical loads.
- two single wires d. H. two insulated electrical conductors in a slot in the concrete or Lay asphalt.
- the slot occupied with the single wires is then replaced with a Two-component concrete or poured with tar. With heavy loads can the concrete or the asphalt bend so that those poured into the tar Single wires tear.
- the present invention has for its object an electrical cable to provide the individual veins with freedom of movement both in Longitudinal direction as well as in the radial direction, and thus the cable, but above all gives the wires that form the electrical circuit a higher tensile strength.
- the cable should also be flexible.
- the main advantage of the invention is that the compressible The central element is the insulated conductor with tensile load in the radial direction inwards can dodge. Due to the extremely short lay length of the electrically insulated conductors and the blind elements result in an excess length of the stranding elements. Both that compressible central element as well as the extremely short lay length of the stranding elements significantly increase the tensile strength of the cores.
- the winding of the cable core with a Foil made of slidable plastic ensures that the cable core and the jacket are decoupled from each other in terms of force, so that the cable core in the case of Laying the cable in concrete or asphalt opposite the cable jacket, which then is fixed, can move.
- An embodiment of the invention is shown schematically in the figure shown section through a cable described in more detail.
- the electrical cable shown in section has a central element 1, which consists of a compressible core 1a and a plastic winding 1b. alternative can also be provided in a manner not shown, a tensile core, which a has outer layer of a compressible material. It is essential that the Central element 1 is able to withstand the forces occurring during the stranding.
- the blind elements 3 are, for example, strands of polypropylene, polyethylene, polyamide or other suitable plastics.
- the central element 1, the wires 2 and the Dummy elements 3 preferably have the same diameter, so that the shown embodiment 1 + 6 results in an optimal arrangement of the stranding elements.
- the lay length of the stranding elements should be as short as possible be less than 10 D, preferably less than 8 D.
- D is the Outside diameter of the existing from central element 1 and the stranding elements Cable core.
- the cable core is provided with a winding 4, which is made of a plastic film with good Sliding properties exist.
- a film made of polytetrafluoroethylene is particularly advantageous.
- the plastic film can be applied as wrapping or in a longitudinal direction.
- the winding 4 is surrounded by an extruded plastic jacket 5 which for example made of polyethylene, polyamide or polyurethane.
- the cable according to the invention is extremely flexible and can absorb high longitudinal forces, without the wires 2 tearing. In the event of an external force, the wires can 2 dodge in the radial direction since the central element 1 is compressible.
- the cable core can be almost unimpeded in the jacket 5 slide both lengthways and circumferentially. Then this is special Advantage if the cable sheath z. B. is set in a layer of concrete or asphalt and the cable is subjected to tensile stress.
- the cable according to the teaching of the invention already stands out in addition to the above Advantages mentioned by a low weight and low manufacturing costs.
Landscapes
- Insulated Conductors (AREA)
- Inorganic Insulating Materials (AREA)
Description
Claims (6)
- Elektrisches Kabel mit einer ein oder mehrere isolierte Leiter aufweisenden Kabelseele sowie einem die Kabelseele umhüllenden Mantel, wobei die Kabelseele ein zentrales Element (1), zumindest zwei isolierte Adern (2) sowie ein oder mehrere Blindelemente (3) aufweist, und die isolierten Adern (2) und die Blindelemente (3) um das zentrale Element (1) mit einer kurzen Schlaglänge von weniger als 10 D herumgeseilt sind, wobei D der Durchmesser der Kabelseele ist, dadurch gekennzeichnet, daß das zentrale Element (1) aus einem kompressiblen Material und die Kabelseele (1,2,3) mit einer Bewicklung (4) aus gleitfähigem Werkstoff versehen ist.
- Elektrisches Kabel nach Anspruch 1, dadurch gekennzeichnet, daß das zentrale Element (1) aus einem kompressiblen Kern (1a) und einer elastisch verformbaren Umhüllung (1 b) besteht.
- Elektrisches Kabel nach Anspruch 2, dadurch gekennzeichnet, daß das zentrale Element (1) eine Kordel (1a) aus Baumwolle ist, die mit einer Umwicklung (1b) aus einem Kunststoffband versehen ist.
- Elektrisches Kabel nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Adern (2), das zentrale Element (1) sowie die Blindelemente (3) den gleichen Außendurchmesser aufweisen.
- Elektrisches Kabel nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Bewicklung (4) aus einer Folie aus Polytetrafluorethylen oder einem ähnlichen Werkstoff besteht.
- Elektrisches Kabel nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Mantel (5) ein extrudierter Mantel aus thermoplastischem oder vernetztem Kunststoff oder Gummi ist.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES02290563T ES2225734T3 (es) | 2002-03-06 | 2002-03-06 | Cable electrico. |
AT02290563T ATE277412T1 (de) | 2002-03-06 | 2002-03-06 | Elektrisches kabel |
EP02290563A EP1343178B1 (de) | 2002-03-06 | 2002-03-06 | Elektrisches Kabel |
DE50201094T DE50201094D1 (de) | 2002-03-06 | 2002-03-06 | Elektrisches Kabel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02290563A EP1343178B1 (de) | 2002-03-06 | 2002-03-06 | Elektrisches Kabel |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1343178A1 EP1343178A1 (de) | 2003-09-10 |
EP1343178B1 true EP1343178B1 (de) | 2004-09-22 |
Family
ID=27741247
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02290563A Expired - Lifetime EP1343178B1 (de) | 2002-03-06 | 2002-03-06 | Elektrisches Kabel |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1343178B1 (de) |
AT (1) | ATE277412T1 (de) |
DE (1) | DE50201094D1 (de) |
ES (1) | ES2225734T3 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105070358A (zh) * | 2015-08-14 | 2015-11-18 | 昆山信昌电线电缆有限公司 | 一种高柔软耐磨阻燃拖链工业用电缆 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3144743A1 (de) * | 1981-11-11 | 1983-05-19 | U.I. Lapp Kg, 7000 Stuttgart | Elektrische, flexible leitung mit besonderer widerstandsfaehigkeit gegen torsionsbeanspruchung |
US5313020A (en) * | 1992-05-29 | 1994-05-17 | Western Atlas International, Inc. | Electrical cable |
-
2002
- 2002-03-06 EP EP02290563A patent/EP1343178B1/de not_active Expired - Lifetime
- 2002-03-06 DE DE50201094T patent/DE50201094D1/de not_active Expired - Lifetime
- 2002-03-06 AT AT02290563T patent/ATE277412T1/de not_active IP Right Cessation
- 2002-03-06 ES ES02290563T patent/ES2225734T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE50201094D1 (de) | 2004-10-28 |
ATE277412T1 (de) | 2004-10-15 |
EP1343178A1 (de) | 2003-09-10 |
ES2225734T3 (es) | 2005-03-16 |
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