WO1999060578A1 - Electric signal transmission cable - Google Patents

Electric signal transmission cable Download PDF

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Publication number
WO1999060578A1
WO1999060578A1 PCT/DE1999/001297 DE9901297W WO9960578A1 WO 1999060578 A1 WO1999060578 A1 WO 1999060578A1 DE 9901297 W DE9901297 W DE 9901297W WO 9960578 A1 WO9960578 A1 WO 9960578A1
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WO
WIPO (PCT)
Prior art keywords
inner jacket
cable
cable according
separating layer
polyvinyl chloride
Prior art date
Application number
PCT/DE1999/001297
Other languages
German (de)
French (fr)
Inventor
Michael Kasper
Joachim Lohmeyer
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
Publication of WO1999060578A1 publication Critical patent/WO1999060578A1/en

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Classifications

    • 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
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/42—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes polyesters; polyethers; polyacetals
    • H01B3/421—Polyesters
    • 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
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
    • H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
    • 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
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
    • H01B3/443—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from vinylhalogenides or other halogenoethylenic compounds
    • 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
    • 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
    • H01B11/00—Communication cables or conductors
    • H01B11/002—Pair constructions

Definitions

  • the invention is based on the object of specifying a cable for electrical signal transmission, which is connected to a Stripping and cutting tools can be safely completed in one operation so that the internal wires can be exposed without damage.
  • commercially available stripping tools should be used, the knives of which enable a radial cut around the outer sheath of the cable with an adjustable penetration depth.
  • the object is achieved with a cable specified in claim 1.
  • This has the advantage that the cavities between the usually stranded wires and the cylindrical outer jacket around them are very evenly foamed with a so-called inner jacket made of easily extrudable polyvinyl chloride.
  • This in turn has the consequence that the inner conductors and in particular their wire insulation in all radial and longitudinal regions of the cable lie at a uniform depth below the outside of the outer cable sheath.
  • the penetration depth of radially cutting stripping tools can consequently be set so precisely that the outer jacket regions of the cable can be cut in a single operation without the risk of local damage to wire insulation.
  • Corresponding additives can cause the polyvinyl chloride to form an inner jacket after curing, which has only limited adhesion to the first and any second separating layer that may be present. Such additives can also be used to create an inner jacket which has only limited tensile strength. Finally, by corresponding Additives are caused that the inner jacket has a certain fragility. All of these measures make it possible, in the event that, after the use of an incisive stripping tool, there are still remnants of the inner sheath surrounding the inner wires, to remove these parts without effort and without further use of tools, for example by tearing them off.
  • the cable 1 shown in cross-section in the figure serves for the transmission of electrical signals and for this purpose has at least one pair of wires 11 and 15 lying next to one another.
  • the wires can each be copper stranded wires, which are stranded against each other.
  • Each core 11 and 15 also has a separate core insulation 13 and 15. This can preferably consist of a so-called Zeil - polyethylene dielectric.
  • an inner jacket 9 made of easily extrudable polyvinyl chloride is now extruded around the first separating layer 21 in such a way that a structure with an outer contour that is circular in cross section is produced.
  • the circular shape of the outer contour is extremely precise.
  • the unit made of the pair of wires surrounded by the separating layer 21 is extrusion-coated very uniformly with the inner jacket 9 made of polyvinyl chloride.
  • a screen braid 5 is also preferably made of tinned copper tissue ring-shaped around the inner jacket 9 and finally an outer cable jacket 3 preferably made of polyvinyl chloride ring-shaped around the screen braid 5.
  • the cable 1 can advantageously have a second separating layer 7, which is placed in a ring around the inner jacket 9 and is surrounded by the braided shield 5. This preferably consists of a metallized polyester film.
  • the circumferential cutting line resulting from the use of a radially cutting tool with an optimally set penetration depth of the cutting knife is shown in the form of a dashed circle 23. It can be seen that not only the outer cable jacket 3, the shielding braid 5 and the second separating layer 7 can be completely severed in one operation. Rather, the inner jacket 9 made of easily extrudable polyvinyl chloride can also be cut precisely, particularly at its narrowest web areas 25 and 27. A violation of the underlying wire insulation 13 and 17 in particular is avoided with certainty.
  • the structure of the inner casing 19 has already been weakened by the cuts in the web areas 25 and 27 in such a way that it can be removed in the form of two halves with the least effort. If the polyvinyl chloride of the inner jacket 9 is still mixed with appropriate additives, so that the adhesion of the inner jacket to the first and / or the second separating layer 21, 7 is restricted and the inner jacket 9 has a reduced tensile strength and at the same time increased brittleness, this can be easily removed. With a corresponding setting of the cutting depth of a stripping tool, the case may even occur that the inner sheath falls off automatically after removal of the outer area of the cable and a slight torsion of the wires 12, 15.
  • Another advantage of the cable structure according to the invention is seen in the fact that in practice there are no changes in the so-called “electrical climate” inside the cable according to the invention in comparison to conventional cable structures.
  • the essential electrical characteristic values of the cable such as, for example, Shield, insulation and wave resistance, wave attenuation, operating capacity, earth coupling, operating voltage, test voltage and the like are unchanged in comparison to cables which, instead of an inner jacket made of easily extrudable polyvinyl chloride, have rope-like fillings.

Abstract

The inventive cable (1) contains at least one pair of conductors (11, 15) with conductor insulation (13, 15). A first separator (21) is placed around the conductor insulation. An inner sheath (9) is then placed around said separator without leaving any space, to produce a structure whose outer contour has a circular cross-section. A braided screen (5) and an outer cable sheath (3) are then placed around the inner sheath in a ring shape. The advantage of the inventive cable is that the conductors can be exposed rapidly and without causing any damage by stripping the cable sheath, the braided screen and the inner sheath using cutting tools.

Description

Beschreibungdescription
Elektrisches SignalübertragungskabelElectrical signal transmission cable
Die innen liegenden Leiter eines elektrischen Kabels, d.h. dessen Adern, müssen freigelegt werden, damit diese z.B. an Steckverbinder u.v.m. anschließbar sind. Dieser Vorgang der sogenannten Abisolierung ist aufwendig und fehleranfällig. Es ist nicht immer zu vermeiden, daß bei der Entfernung von äu- ßeren Kabelmänteln auch innen liegende Aderisolationen in unerwünschter Weise beschädigt werden.The internal conductors of an electrical cable, i.e. its cores must be exposed so that they can e.g. to connectors and much more can be connected. This process of so-called stripping is complex and prone to errors. It is not always to be avoided that internal cable insulation may be damaged in an undesired manner when removing outer cable sheaths.
Dieses Problem tritt insbesondere dann auf, wenn im Inneren eines Kabels mit einem zylinderförmigen Außenmantel z.B. zwei Adern etwa in Form eines sogenannten „twisted pair" verlegt sind. Oberhalb und unterhalb der aneinander liegenden Adern treten Hohlraumbereiehe auf, welche z.B. mit seil- bzw. bandförmigen Materialien gefüllt werden, bevor darum ein annähernd zylinderförmiger Außenmantel angebracht werden kann. Dabei tritt aber das Problem auf, daß die Adern in unterschiedlicher Tiefe unterhalb des Außenmantels verlaufen. Dies hat seine Ursache darin, daß die in der Regel gemeinsam mit den Adern verseilten bandförmigen Füllmaterialien schwankende Querschnitte aufweisen. Dies hat wiederum zur Folge, daß eine Abisolation von äußeren Kabelmantelbereichen z.B. mit radial einschneidenden Werkzeugen nur erschwert möglich ist. Zur Vermeidung von unerwünschten Beschädigungen an den Isolierungen der Adern kann die Einschneidtiefe der Werkzeuge nicht ausreichend gewählt werden. Nach dem Werkzeugeinsatz sind in der Regel nicht alle bandförmigen Füllmaterialien gleichmäßig durchtrennt. Vielmehr müssen noch anhängige Reste mühevoll separat abgetrennt werden.This problem occurs in particular if, for example, inside a cable with a cylindrical outer jacket two cores are laid, for example, in the form of a so-called "twisted pair". Above and below the adjacent cores there are void areas which are filled, for example, with rope-like or ribbon-shaped materials before an approximately cylindrical outer jacket can be attached around them The problem arises that the wires run at different depths below the outer jacket, which is due to the fact that the ribbon-shaped filling materials, which are usually stranded together with the wires, have fluctuating cross sections, which in turn means that stripping of outer cable jacket areas, for example radial cutting tools are difficult to make. To avoid undesired damage to the insulation of the wires, the cutting depth of the tools cannot be selected sufficiently. After the tool has been used, not all ribbon-shaped filling materials are usually cut through evenly. Rather, pending residues have to be separated separately with difficulty.
Der Erfindung liegt die Aufgabe zu Grunde, ein Kabel zur elektrischen Signalübertragung anzugeben, welches mit einem Abisolier- und Schneidwerkzeug in einem Arbeitsgang sicher so absoliert werden kann, daß dessen innen liegende Adern ohne Beschädigung freigelegt werden können. Insbesondere sollen handelsübliche Abisolierwerkzeuge einsetzbar sein, deren Mes- ser einen radialen Schnitt um den Außenmantel des Kabels mit einer einstellbaren Eindringtiefe ermöglichen.The invention is based on the object of specifying a cable for electrical signal transmission, which is connected to a Stripping and cutting tools can be safely completed in one operation so that the internal wires can be exposed without damage. In particular, commercially available stripping tools should be used, the knives of which enable a radial cut around the outer sheath of the cable with an adjustable penetration depth.
Die Aufgabe wird gelöst mit einem im Anspruch 1 angegebenen Kabel. Dieses hat den Vorteil, daß die Hohlräume zwischen den in der Regel verseilten Adern und dem darum befindlichen, zylinderförmigen Außenmantel sehr gleichmäßig mit einem sogenannten Innenmantel aus leicht extrudierbarem Polyvinylchlorid ausgeschäumt sind. Dies hat wiederum zur Folge, daß die Innenleiter und insbesondere deren Adernisolationen in allen radialen und longitudinalen Bereichen des Kabels in einer einheitlichen Tiefe unterhalb der Außenseite des äußeren Kabelmantels liegen. Die Eindringtiefe von radial einschneidenden Abisolierwerkzeuge kann folglich so präzise eingestellt werden, daß die äußeren Mantelbereiche des Kabels in einem einzigen Arbeitsgang ohne die Gefahr einer lokalen Beschädigung einer Aderisolation eingeschnitten werden können.The object is achieved with a cable specified in claim 1. This has the advantage that the cavities between the usually stranded wires and the cylindrical outer jacket around them are very evenly foamed with a so-called inner jacket made of easily extrudable polyvinyl chloride. This in turn has the consequence that the inner conductors and in particular their wire insulation in all radial and longitudinal regions of the cable lie at a uniform depth below the outside of the outer cable sheath. The penetration depth of radially cutting stripping tools can consequently be set so precisely that the outer jacket regions of the cable can be cut in a single operation without the risk of local damage to wire insulation.
Diese vorteilhaften Eigenschaften des erfindungsgemäßen Kabels können weiter verbessert werden, wenn die Eigenschaften des als Innenmantel eingesetzten Polyvinylchlorids insbesondere durch entsprechende Zuschlagstoffe geeignet eingestellt werden .These advantageous properties of the cable according to the invention can be further improved if the properties of the polyvinyl chloride used as the inner jacket are suitably adjusted, in particular by means of appropriate additives.
So kann durch entsprechende Zuschlagstoffe bewirkt werden, daß das Polyvinylchlorid nach dem Aushärten einen Innenmantel bildet, der eine nur eingeschränkte Haftung gegenüber der ersten und einer gegebenenfalls vorhandenen zweiten Trennschicht aufweist. Ferner kann durch derartige Zuschlagstoffe ein Innenmantel geschaffen werden, der eine nur eingeschränk- te Reißfestigkeit aufweist. Schließlich kann durch entspre- chende Zuschlagstoffe bewirkt werden, daß der Innenmantel eine gewisse Brüchigkeit aufweist. Mit allen diesen Maßnahmen wird es für den Fall, daß nach dem Einsatz eines einschneidenden Abisolierwerkzeuges noch Reste des die innen liegenden Adern umgebenden Innenmantels vorhanden sein sollten, ermöglicht, diese Teile ohne Kraftaufwand und ohne einen weiteren Werkzeugeinsatz z.B. durch Abreißen zu entfernen.Corresponding additives can cause the polyvinyl chloride to form an inner jacket after curing, which has only limited adhesion to the first and any second separating layer that may be present. Such additives can also be used to create an inner jacket which has only limited tensile strength. Finally, by corresponding Additives are caused that the inner jacket has a certain fragility. All of these measures make it possible, in the event that, after the use of an incisive stripping tool, there are still remnants of the inner sheath surrounding the inner wires, to remove these parts without effort and without further use of tools, for example by tearing them off.
Weitere Vorteile und weitere vorteilhafte Ausführungsformen der Erfindung werden an Hand eines in der Figur beispielhaft dargestellten Kabels weiter erläutert.Further advantages and further advantageous embodiments of the invention are further explained with the aid of a cable which is shown by way of example in the figure.
Das in der Figur im Querschnitt dargestellte Kabel 1 dient zur Übertragung von elektrischen Signalen und weist hierzu mindestens ein Paar von nebeneinander liegenden Adern 11 und 15 auf. Bei den Adern kann es sich jeweils um Kupferlitzendrähte handeln, welche gegeneinander verseilt sind. Jede Ader 11 und 15 weist ferner eine separate Aderisolierung 13 und 15 auf. Diese kann bevorzugt aus einem sogenannten Zeil - Polye- thylen Dielektrikum bestehen. Um die Aderisolierungen 13, 17 des Adernpaares 11, 15 ist eine erste Trennschicht 21 gelegt, welche bevorzugt aus einer Polyesterfolie besteht. Die dabei im Innenbereich zwischen den Aderisolierungen 13 , 17 und der Trennschicht 21 auftretenden Zwickelbereiche können unausge- füllt bleiben.The cable 1 shown in cross-section in the figure serves for the transmission of electrical signals and for this purpose has at least one pair of wires 11 and 15 lying next to one another. The wires can each be copper stranded wires, which are stranded against each other. Each core 11 and 15 also has a separate core insulation 13 and 15. This can preferably consist of a so-called Zeil - polyethylene dielectric. A first separating layer 21, which preferably consists of a polyester film, is placed around the wire insulation 13, 17 of the wire pair 11, 15. The gusset areas occurring in the interior between the wire insulation 13, 17 and the separating layer 21 can remain unfilled.
Erfindungsgemäß wird nun ein Innenmantel 9 aus leicht extru- dierbarem Polyvinylchlorid hohlraumfrei so um die erste Trennschicht 21 extrudiert, daß ein Aufbau mit einer im Quer- schnitt kreisförmigen Außenkontur entsteht. Dabei weist die Kreisform der Außenkontur eine hohe Genauigkeit auf. Ferner ist die Einheit aus dem mit der Trennschicht 21 umgebenen Adernpaares sehr gleichmäßig mit dem Innenmantel 9 aus Polyvinylchlorid umspritzt. Zur Fertigstellung des Kabels sind ferner ein Schirmgeflecht 5 bevorzugt aus verzinntem Kupfer- gewebe ringförmig um den Innenmantel 9 und schließlich ein äußerer Kabelmantel 3 bevorzugt aus Polyvinylchlorid ringförmig um das Schirmgeflecht 5 gelegt. Vorteilhaft kann das Kabel 1 eine zweite Trennschicht 7 aufweisen, welche ringförmig um den Innenmantel 9 gelegt und vom Schirmgeflecht 5 umgeben ist. Diese besteht bevorzugt aus einer metallisierten Polyesterfolie .According to the invention, an inner jacket 9 made of easily extrudable polyvinyl chloride is now extruded around the first separating layer 21 in such a way that a structure with an outer contour that is circular in cross section is produced. The circular shape of the outer contour is extremely precise. Furthermore, the unit made of the pair of wires surrounded by the separating layer 21 is extrusion-coated very uniformly with the inner jacket 9 made of polyvinyl chloride. To complete the cable, a screen braid 5 is also preferably made of tinned copper tissue ring-shaped around the inner jacket 9 and finally an outer cable jacket 3 preferably made of polyvinyl chloride ring-shaped around the screen braid 5. The cable 1 can advantageously have a second separating layer 7, which is placed in a ring around the inner jacket 9 and is surrounded by the braided shield 5. This preferably consists of a metallized polyester film.
Dieser erfindungsgemäße präzise geometrische Aufbau des Kabels ermöglicht nun eine präsize Einstellung der Einschnitttiefe eines radial in den äußeren Kabelmantel 3 und die darunter liegenden Schichten einschneidenden Abisolierwerkzeuges. Ein vorteilhaftes, handelsübliches Abisolier- und Schneidwerkzeug dieser Art ist unter der Bezeichnung stripax von der Firma Weidmüller erhältlich.This precise geometric construction of the cable according to the invention now enables a precise adjustment of the depth of cut of a stripping tool that cuts radially into the outer cable sheath 3 and the layers underneath. An advantageous, commercially available stripping and cutting tool of this type is available under the name stripax from Weidmüller.
Im Beispiel der Figur ist in Form eines strichlierten Kreises 23 die sich bei Einsatz eines radial einschneidenden Werkzeuges mit optimal eingestellter Eindringtiefe der Schneidmesser ergebende Umfangsschnittlinie dargestellt. Es ist zu erkennen, daß nicht nur der äußere Kabelmantel 3, das Schirmgefiecht 5 und die zweite Trennschicht 7 in einem Arbeitsgang vollständig durchtrennbar sind. Vielmehr kann auch der Innenmantel 9 aus leicht extrudierbarem Polyvinylchlorid insbeson- dere an dessen schmälsten Stegbereichen 25 und 27 präzise eingeschnitten werden. Eine Verletzung insbesondere der darunterliegenden Aderisolationen 13 und 17 wird mit Sicherheit vermieden.In the example of the figure, the circumferential cutting line resulting from the use of a radially cutting tool with an optimally set penetration depth of the cutting knife is shown in the form of a dashed circle 23. It can be seen that not only the outer cable jacket 3, the shielding braid 5 and the second separating layer 7 can be completely severed in one operation. Rather, the inner jacket 9 made of easily extrudable polyvinyl chloride can also be cut precisely, particularly at its narrowest web areas 25 and 27. A violation of the underlying wire insulation 13 and 17 in particular is avoided with certainty.
Andererseits ist die Struktur des Innenmantels 19 durch die Schnitte in den Stegbereichen 25 und 27 bereits so geschwächt, daß dieser in Form von zwei Hälften mit geringstem Aufwand abgenommen werden kann. Ist das Polyvinylchlorid des Innenmantels 9 noch mit entsprechenden Zuschlagstoffen ver- setzt, so daß die Haftung des Innenmantels an der ersten und/oder zweiten Trennschicht 21, 7 eingeschränkt ist und der Innenmantel 9 eine verringerte Reißfestigkeit bei gleichzeitig erhöhter Brüchigkeit aufweist, so kann dieser mühelos abzogen werden. Bei entsprechender Einstellung der Ein- schneidtiefe eines Abisolierwerkzeuges kann sogar der Fall eintreten, daß der Innenmantel nach Entfernung der äußeren Bereiches des Kabels und einer geringfügigen Torsion der Adern 12, 15 selbständig abfällt.On the other hand, the structure of the inner casing 19 has already been weakened by the cuts in the web areas 25 and 27 in such a way that it can be removed in the form of two halves with the least effort. If the polyvinyl chloride of the inner jacket 9 is still mixed with appropriate additives, so that the adhesion of the inner jacket to the first and / or the second separating layer 21, 7 is restricted and the inner jacket 9 has a reduced tensile strength and at the same time increased brittleness, this can be easily removed. With a corresponding setting of the cutting depth of a stripping tool, the case may even occur that the inner sheath falls off automatically after removal of the outer area of the cable and a slight torsion of the wires 12, 15.
Ein weitere Vorteil des erfindungsgemäßen Kabelaufbaues wird darin gesehen, daß in der Praxis keine Veränderungen des sogenannten „elektrischen Klimas" im Inneren des Kabels gemäß der Erfindung im Vergleich zu herkömmlichen Kabelaufbauten auftreten. Die wesentlichen elektrischen Kennwerte des Ka- bels, wie z.B. Schleifen-, Schirm-, Isolations- und Wellenwiderstand, Wellendämpfung, Betriebskapazität, Erdkopplung, Betriebsspannung, PrüfSpannung und dergleichen sind unverändert im Vergleich zu Kabeln, welche an Stelle eines Innenmantels aus leicht extrudierbarem Polyvinylchlorid seilförmige Fül- lungen aufweisen. Another advantage of the cable structure according to the invention is seen in the fact that in practice there are no changes in the so-called “electrical climate” inside the cable according to the invention in comparison to conventional cable structures. The essential electrical characteristic values of the cable, such as, for example, Shield, insulation and wave resistance, wave attenuation, operating capacity, earth coupling, operating voltage, test voltage and the like are unchanged in comparison to cables which, instead of an inner jacket made of easily extrudable polyvinyl chloride, have rope-like fillings.

Claims

Patentansprüche claims
1. Kabel (1) zur Übertragung von elektrischen Signalen, mit a) mindestens einem Paar von nebeneinander liegenden Adern (11,15), wobei jede Ader (11,15) eine Aderisolierung1. Cable (1) for the transmission of electrical signals, with a) at least one pair of adjacent wires (11,15), each wire (11,15) a wire insulation
(13,17) aufweist, b) einer ersten Trennschicht (21) , welche um die Aderisolierungen (13,17) gelegt ist, c) einem Innenmantel (9) aus leicht extrudierbarem Poly- vinylchlorid, welcher hohlraumfrei so um die erste Trennschicht (21) extrudiert ist, daß ein Aufbau mit einer im Querschnitt kreisförmigen Außenkontur entsteht, d) einem Schirmgeflecht (5), welches ringförmig um den Innenmantel (9) gelegt ist, und e) einem äußeren Kabelmantel (3), welcher ringförmig um das Schirmgeflecht (5) gelegt ist.(13, 17), b) a first separating layer (21), which is placed around the wire insulation (13, 17), c) an inner jacket (9) made of easily extrudable polyvinyl chloride, which thus free of voids around the first separating layer ( 21) is extruded to form a structure with a circular outer contour in cross-section, d) a braided shield (5), which is placed in a ring around the inner jacket (9), and e) an outer cable jacket (3), which is ring-shaped around the shielding braid (5) is laid.
2. Kabel nach Anspruch 1, mit einer zweite Trennschicht (7), welche ringförmig um den Innenmantel (9) gelegt und vom Schirmgeflecht (5) umgeben ist.2. Cable according to claim 1, with a second separating layer (7) which is placed in a ring around the inner jacket (9) and is surrounded by the braided screen (5).
3. Kabel nach einem der vorangegangenen Ansprüche, mit einem Innenmantel (9) aus Polyvinylchlorid, welcher derartige Zuschlagstoffe aufweist, daß nach dem Aushärten des Innenman- tels eine nur eingeschränkte Haftung gegenüber der ersten und/oder zweiten Trennschicht auftritt.3. Cable according to one of the preceding claims, with an inner jacket (9) made of polyvinyl chloride, which has such additives that after curing of the inner jacket only limited adhesion to the first and / or second separating layer occurs.
4. Kabel nach einem der vorangegangenen Ansprüche, mit einem Innenmantel (9) aus Polyvinylchlorid, welcher derartige Zu- schlagstoffe aufweist, daß der Innenmantel eine nur eingeschränkte Reißfestigkeit aufweist. 4. Cable according to one of the preceding claims, with an inner jacket (9) made of polyvinyl chloride, which has such additives that the inner jacket has only a limited tensile strength.
5. Kabel nach einem der vorangegangenen Ansprüche, mit einem Innenmantel (9) aus Polyvinylchlorid, welcher derartige Zuschlagstoffe aufweist, daß der Innenmantel eine gewisse Brüchigkeit aufweist.5. Cable according to one of the preceding claims, with an inner jacket (9) made of polyvinyl chloride, which has such additives that the inner jacket has a certain fragility.
6. Kabel nach einem der vorangegangenen Ansprüche, mit einem Dielektrikum aus Zeil - Polyethylen als Aderisolierung6. Cable according to one of the preceding claims, with a dielectric made of Zeil - polyethylene as wire insulation
(13,17) .(13.17).
7. Kabel nach einem der vorangegangenen Ansprüche, mit einer Polyesterfolie als erste Trennschicht (21).7. Cable according to one of the preceding claims, with a polyester film as the first separating layer (21).
8. Kabel nach einem der vorangegangenen Ansprüche, mit einer metallisierten Polyesterfolie als zweite Trennschicht (7).8. Cable according to one of the preceding claims, with a metallized polyester film as the second separating layer (7).
9. Kabel nach einem der vorangegangenen Ansprüche, wobei die Adern (11,15) eines Paares miteinander verseilt sind. 9. Cable according to one of the preceding claims, wherein the wires (11, 15) of a pair are stranded together.
PCT/DE1999/001297 1998-05-14 1999-05-03 Electric signal transmission cable WO1999060578A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29808657.3 1998-05-14
DE29808657U DE29808657U1 (en) 1998-05-14 1998-05-14 Electrical signal transmission cable

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EP1398799A2 (en) * 2002-09-12 2004-03-17 Nexans Electrical cable for connecting mobile electrical loads
DE102004047384B3 (en) * 2004-09-29 2006-01-12 Siemens Ag Cable for transmitting electric signals has pairs of leads lying alongside each other with each lead having an insulation
EP2800105A1 (en) * 2013-04-29 2014-11-05 Siemens Aktiengesellschaft Data transmission cable which can be assembled
CN104134485A (en) * 2013-05-01 2014-11-05 住友电气工业株式会社 Insulated electric cable
EP3147913A1 (en) 2015-09-25 2017-03-29 Siemens Aktiengesellschaft Data transmission cable which can be assembled
EP3799080A1 (en) 2019-09-24 2021-03-31 Siemens Aktiengesellschaft Data transmission cable which can be assembled
WO2021209553A1 (en) * 2020-04-16 2021-10-21 Leoni Kabel Gmbh Cable for electrically transmitting data

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EP1398799A2 (en) * 2002-09-12 2004-03-17 Nexans Electrical cable for connecting mobile electrical loads
EP1398799A3 (en) * 2002-09-12 2004-12-08 Nexans Electrical cable for connecting mobile electrical loads
DE102004047384B3 (en) * 2004-09-29 2006-01-12 Siemens Ag Cable for transmitting electric signals has pairs of leads lying alongside each other with each lead having an insulation
EP2800105A1 (en) * 2013-04-29 2014-11-05 Siemens Aktiengesellschaft Data transmission cable which can be assembled
CN104134485B (en) * 2013-05-01 2017-01-11 住友电气工业株式会社 Insulated electric cable
JP2014220043A (en) * 2013-05-01 2014-11-20 住友電気工業株式会社 Insulation cable
US10861621B2 (en) 2013-05-01 2020-12-08 Sumitomo Electric Industries, Ltd. Insulated electric cable
US11742112B2 (en) 2013-05-01 2023-08-29 Sumitomo Electric Industries, Ltd. Insulated electric cable
CN104134485A (en) * 2013-05-01 2014-11-05 住友电气工业株式会社 Insulated electric cable
CN106782834A (en) * 2013-05-01 2017-05-31 住友电气工业株式会社 Electric insulation cable
US9905338B2 (en) 2013-05-01 2018-02-27 Sumitomo Electric Industries, Ltd. Insulated electric cable
US10262774B2 (en) 2013-05-01 2019-04-16 Sumitomo Electric Industries, Ltd. Insulated electric cable
US11295875B2 (en) 2013-05-01 2022-04-05 Sumitomo Electric Industries, Ltd. Insulated electric cable
US10468157B2 (en) 2013-05-01 2019-11-05 Sumitomo Electric Industries, Ltd. Insulated electric cable
WO2017050518A1 (en) 2015-09-25 2017-03-30 Siemens Aktiengesellschaft Data transmission cable which can be fabricated
US10418153B2 (en) 2015-09-25 2019-09-17 Siemens Aktiengesellschaft Fabricatable data transmission cable
EP3147913A1 (en) 2015-09-25 2017-03-29 Siemens Aktiengesellschaft Data transmission cable which can be assembled
EP3799080A1 (en) 2019-09-24 2021-03-31 Siemens Aktiengesellschaft Data transmission cable which can be assembled
WO2021209553A1 (en) * 2020-04-16 2021-10-21 Leoni Kabel Gmbh Cable for electrically transmitting data

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