DE2528307A1 - Multi core flexible electric cable with lubricant coated cores - which is capable of withstanding high alternating bending stress - Google Patents

Multi core flexible electric cable with lubricant coated cores - which is capable of withstanding high alternating bending stress

Info

Publication number
DE2528307A1
DE2528307A1 DE19752528307 DE2528307A DE2528307A1 DE 2528307 A1 DE2528307 A1 DE 2528307A1 DE 19752528307 DE19752528307 DE 19752528307 DE 2528307 A DE2528307 A DE 2528307A DE 2528307 A1 DE2528307 A1 DE 2528307A1
Authority
DE
Germany
Prior art keywords
lubricant
cores
coated
electric cable
flexible electric
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.)
Ceased
Application number
DE19752528307
Other languages
German (de)
Other versions
DE2528307B2 (en
Inventor
Lothar Ing Grad Pokorny
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.)
Siemens AG
Original Assignee
Siemens AG
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 AG filed Critical Siemens AG
Priority to DE19752528307 priority Critical patent/DE2528307B2/en
Publication of DE2528307A1 publication Critical patent/DE2528307A1/en
Publication of DE2528307B2 publication Critical patent/DE2528307B2/en
Ceased legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/04Flexible cables, conductors, or cords, e.g. trailing cables

Abstract

Multi-core flexible electric cable comprises an inner sheath encompassing he cores which are insulated individually with rubber or plastics and coated with a lacquer-like lubricant pref. containing Mo or based on PTFE, e.g. "Molykote 321 R" and "Molydur 523". Other inner surfaces of the cable may also be coated with this lubricant. Only small quantities of the lubricant need to be used, and are applied in a continuous process by passing the cores through a tank or trough containing a soln of the lubricant or by spraying. The lubricant can be used in all cables in which rubber or plastics surfaces rub against each other; regardless of the structure of the cable and the kind of insulating material which is pref. natural or synthetic rubber, PVC, polyethylene or ethylene copolymer.

Description

Mehradrige, flexible elektrische Leistung Um bei mehradrigen elektrischen Leitungen, die im Betrieb häufig hin und her bewegt werden, eine ausreichende Flexibilität sicherzustellen, ist es unter anderem üblich, in die Kabelseele der Leitung ein Gleitmittel einzubringen. Hierzu wird beispielsweise ein pulverförmiges Trockengleitmittel wie Talkum verwendet, das mittels staubdichter Trennschichten in den einzelnen Verseillagen der Leitung festgehalten wird (DT-AS 1 101 551). Es ist auch bekannt, ein wachsartiges Gleitmittel auf Silikonbasis zu ver--wenden, mit dem die Adern vor ihrer Verseilung zur Kabelseele überzogen werden (GB-PS 609 366).Multi-core, flexible electrical power To with multi-core electrical Lines that are frequently moved back and forth during operation have sufficient flexibility to ensure it is customary, among other things, to insert into the cable core of the line Bring in lubricant. A powdery dry lubricant is used for this purpose, for example used like talc, using dust-proof separating layers in the individual layers of the rope the line is recorded (DT-AS 1 101 551). It is also known to be a waxy Use silicone-based lubricant to treat the wires before stranding them to be coated into the cable core (GB-PS 609 366).

Bei den bekannten Leitungsaufbauten muß zur Erzielung der gewünschten Flexibilität entweder wesentlich mehr Gleitmittel eingesetzt werden, als an sich benötigt wird, oder es besteht die Gefahr, daß das Gleitmittel allmählich aus den beanspruchten Oberflächenbereichen verdrängt wird.In the known line structures must to achieve the desired Flexibility either significantly more lubricant can be used than per se is needed, or there is a risk that the lubricant will gradually run out of the stressed surface areas is displaced.

Der Erfindung liegt die Aufgabe zugrunde, bei mehradrigen, flexiblen elektrischen Leitungen die inneren Reibungsverhältnisse dauerhaft so zu verbessern, daß die Leitungen auch erhöhten mechanischen Beanspruchungen, insbesondere wechselnden Biegebeanspruchungen, standhalten.The invention is based on the problem of multi-core, flexible electrical lines to permanently improve the internal friction conditions in such a way that that the lines also increased mechanical stresses, especially changing ones Withstand bending loads.

Zur Lösung dieser Aufgabe geht die Erfindung von einer Leitung mit gummi- oder kunststoffisolierten Adern aus, bei der auf die Oberfläche der gemeinsam ummantelten Adern ein Gleitmittel aufgebracht ist. Gemäß der Erfindung sind die Adern mit einem lackartigen Gleitmittel überzogen.To solve this problem, the invention is based on a line rubber or plastic insulated cores, in which on the surface of the joint coated cores a lubricant is applied. According to the invention, the Cores coated with a varnish-like lubricant.

Bei einer gemäß der Erfindung ausgebildeten Leistung ist demnach jede Ader mit einer dünnen Schicht eines festen, auf der Aderoberfläche fest haftenden Gleitmittels überzogen. Damit ist gewährleistet, daß nur geringe Gleitmittelmengen verwendet werden müssen und daß stets ein Gleitmittelbelag an den beanspruchten Oberflächenbereichen vorhanden ist.In a service designed according to the invention, therefore, each Vein with a thin layer of a solid, firmly adhering to the vein surface Coated with lubricant. This ensures that only small amounts of lubricant must be used and that always a lubricant coating on the claimed Surface areas is present.

Geeignete lackartige Gleitmittel sind insbesondere molybdänhaltige Gleitlacke sowie Gleitlacke auf der Basis von Polytetrafluoräthylen, wie sie an sich bekannt und im Handel unter den Bezeichnungen "Molykote 321 R" und "Molydur 523 erhältlich sind. Das Aufbringen dieser Gleitlacke auf die Oberflächen der Adern erfolgt zweckmäßig in einem Durchlaufverfahren vor dem Verseilen der Adern zur Kabelseele. Hiertei können die Adern ein Becken oder einen Trog durchlaufen, in dem der Gleitlack als Lösung enthalten ist; es besteht auch die Möglichkeit, das lackartige Gleitmittel durch Aufsprühen auf die Aderoberfläche aufzubringen.Suitable lacquer-like lubricants are in particular those containing molybdenum Bonded coatings and bonded coatings based on polytetrafluoroethylene, such as those at known and commercially available under the names "Molykote 321 R" and "Molydur 523 are available. The application of these lubricating varnishes to the surfaces of the veins expediently takes place in a continuous process before stranding the cores to form the cable core. Here, the veins can run through a basin or trough in which the lubricant varnish is included as a solution; there is also the possibility of the varnish-like lubricant to be applied by spraying onto the vein surface.

Ein Ausführungsbeispiel einer gemaß der Erfindung ausgebildeten vieradrigen elektrischen Leistung ist in der Figur dargestellt.An embodiment of a four-wire formed according to the invention electrical power is shown in the figure.

Die Leistung besteht aus den vier miteinander verseilten Adern 1 bis 4, auf die ein Innenmantel 5 und ein Außenmantel 6 extrudiert ist. Jede Ader besteht aus dem Zweiter 10 und der Aderisolierung 11, auf die eine Schicht 12 eines lackartigen Gleitmittels aufgebracht ist.The power consists of the four cores 1 to stranded together 4 on which an inner jacket 5 and an outer jacket 6 are extruded. Every vein exists from the second 10 and the core insulation 11, on which a layer 12 of a lacquer-like Lubricant is applied.

Die im Rahmen der Erfindung vorgesehene lackartige Gleitmittelschicht kann bei allen flexiblen elektrischen Leitungen zur Anwendung gelangen, bei denen Gummi- oder Kunststofflächen aufeinander reiben. Dies gilt unabhängig vom Aufbau der Leitung und von den verwendeten Isolierwerkstoffen. Als Isolierwerkstoffe kommen insbesondere natürliche und synthetische Kautschuke, Polyvinylchlorid, Polyäthylen, sowie Copolymerisate des Äthylen in Betracht. Gegebenenfalls kann die vorgesohene Schicht eines lackartigen Uberzuges auch auf andere Elemente der Kabelseele aufgebracht werden.The lacquer-like lubricant layer provided in the context of the invention can be used for all flexible electrical cables where Rub rubber or plastic surfaces against each other. This applies regardless of the structure the cable and the insulating materials used. Come as insulating materials in particular natural and synthetic rubbers, polyvinyl chloride, polyethylene, as well as copolymers of ethylene into consideration. If necessary, the above Layer of a lacquer-like coating is also applied to other elements of the cable core will.

4 Ansprüche 1 Figur4 claims 1 figure

Claims (4)

Pa tentansrüche 1. Nehradrige, flexible elektrische Leitung mit gummi- oder kunststoffisolierten Adern, bei der auf die Oberfläche der gemeinsam ummantelten Adern ein Gleitmittel aufgebracht ist, dadurch gekennzeichnet, daß die Adern (1) mit einem lackartigen Gleitmittel (12) überzogen sind. Claims 1. Multi-core, flexible electrical cable with rubber or plastic-insulated cores, in which on the surface of the jointly sheathed A lubricant is applied to the cores, characterized in that the cores (1) are coated with a lacquer-like lubricant (12). 2. Leitung nach Anspruch 1, dadurch gekennzeichnet, daß die Adern mit einem molybdänhaltigen Gleitlack überzogen sind.2. Line according to claim 1, characterized in that the wires are coated with a molybdenum-containing lubricant varnish. 3. Leistung nach Anspruch 1, dadurch gekennzeichnet, daß die Adern mit einem Gleitlack auf der Basis von Polytetrafluoräthylen überzogen sind.3. Power according to claim 1, characterized in that the wires are coated with a lubricating varnish based on polytetrafluoroethylene. 4. Leitung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß weitere innere Gleitflächen der Leitung mit dem lackartigen Gleitmittel überzogen sind.4. Line according to one of claims 1 to 3, characterized in that that further inner sliding surfaces of the line are coated with the lacquer-like lubricant are. Lee rs ei teLee on the side
DE19752528307 1975-06-23 1975-06-23 Multi-core, flexible electrical cable Ceased DE2528307B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19752528307 DE2528307B2 (en) 1975-06-23 1975-06-23 Multi-core, flexible electrical cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752528307 DE2528307B2 (en) 1975-06-23 1975-06-23 Multi-core, flexible electrical cable

Publications (2)

Publication Number Publication Date
DE2528307A1 true DE2528307A1 (en) 1977-01-13
DE2528307B2 DE2528307B2 (en) 1978-04-06

Family

ID=5949924

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752528307 Ceased DE2528307B2 (en) 1975-06-23 1975-06-23 Multi-core, flexible electrical cable

Country Status (1)

Country Link
DE (1) DE2528307B2 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0003747A1 (en) * 1978-02-17 1979-09-05 Siemens Aktiengesellschaft Flexible insulated multi-core electrical cable
DE3150031A1 (en) * 1981-12-17 1983-06-23 H. Stoll Gmbh & Co, 7410 Reutlingen HIGHLY FLEXIBLE INSULATED ELECTRIC CABLE
DE3400202A1 (en) * 1984-01-04 1985-07-11 Siemens AG, 1000 Berlin und 8000 München CABLE WITH FRICTION REDUCING OUTER LAYER
US4837409A (en) * 1984-03-02 1989-06-06 Homac Mfg. Company Submerisible insulated splice assemblies
FR2768848A1 (en) * 1997-09-25 1999-03-26 Alsthom Cge Alcatel DEVICE FOR DEPOSITING A SOLID LUBRICANT ON A CABLE
EP0981136A1 (en) * 1998-08-19 2000-02-23 Pirelli Cables y Sistemas, S.A. Electrical cable and method and equipment for the obtention thereof
WO2006016896A1 (en) * 2004-07-13 2006-02-16 Southwire Company Electrical cable having a surface with reduced coefficient of friction
US9431152B2 (en) 2004-09-28 2016-08-30 Southwire Company, Llc Method of manufacturing electrical cable, and resulting product, with reduced required installation pulling force
US10023740B2 (en) 2009-03-18 2018-07-17 Southwire Company, Llc Electrical cable having crosslinked insulation with internal pulling lubricant
US10431350B1 (en) 2015-02-12 2019-10-01 Southwire Company, Llc Non-circular electrical cable having a reduced pulling force
US11527339B2 (en) 2004-09-28 2022-12-13 Southwire Company, Llc Method of manufacturing electrical cable, and resulting product, with reduced required installation pulling force

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3603734C2 (en) * 1986-02-06 1994-05-05 Siemens Ag Method and device for SZ stranding of electrical and / or optical stranding elements
DE4008853C1 (en) * 1990-03-20 1991-05-29 Ernst & Engbring Gmbh, 4353 Oer-Erkenschwick, De

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0003747A1 (en) * 1978-02-17 1979-09-05 Siemens Aktiengesellschaft Flexible insulated multi-core electrical cable
DE3150031A1 (en) * 1981-12-17 1983-06-23 H. Stoll Gmbh & Co, 7410 Reutlingen HIGHLY FLEXIBLE INSULATED ELECTRIC CABLE
DE3400202A1 (en) * 1984-01-04 1985-07-11 Siemens AG, 1000 Berlin und 8000 München CABLE WITH FRICTION REDUCING OUTER LAYER
US4837409A (en) * 1984-03-02 1989-06-06 Homac Mfg. Company Submerisible insulated splice assemblies
FR2768848A1 (en) * 1997-09-25 1999-03-26 Alsthom Cge Alcatel DEVICE FOR DEPOSITING A SOLID LUBRICANT ON A CABLE
EP0905717A1 (en) * 1997-09-25 1999-03-31 Alcatel Device for coating a solid lubricant on a cable
EP0981136A1 (en) * 1998-08-19 2000-02-23 Pirelli Cables y Sistemas, S.A. Electrical cable and method and equipment for the obtention thereof
US6416813B1 (en) * 1998-08-19 2002-07-09 Pirelli Cables Y Sistemas, S.A. Method of manufacturing an electrical cable having a reduced coefficient of friction
US7053308B2 (en) 1998-08-19 2006-05-30 Pirelli Cables Y Sistemas S.A. Electrical cable having a reduced coefficient of friction
WO2006016896A1 (en) * 2004-07-13 2006-02-16 Southwire Company Electrical cable having a surface with reduced coefficient of friction
US11011285B2 (en) 2004-09-28 2021-05-18 Southwire Company, Llc Method of manufacturing electrical cable, and resulting product, with reduced required installation pulling force
US11776715B2 (en) 2004-09-28 2023-10-03 Southwire Company, Llc Method of manufacturing electrical cable, and resulting product, with reduced required installation pulling force
US11942236B2 (en) 2004-09-28 2024-03-26 Southwire Company, Llc Method of manufacturing electrical cable, and resulting product, with reduced required installation pulling force
US10706988B2 (en) 2004-09-28 2020-07-07 Southwire Company, Llc Method of manufacturing electrical cable, and resulting product, with reduced required installation pulling force
US10763008B2 (en) 2004-09-28 2020-09-01 Southwire Company, Llc Method of manufacturing electrical cable, and resulting product, with reduced required installation pulling force
US10763010B2 (en) 2004-09-28 2020-09-01 Southwire Company, Llc Method of manufacturing electrical cable, and resulting product, with reduced required installation pulling force
US10763009B2 (en) 2004-09-28 2020-09-01 Southwire Company, Llc Method of manufacturing electrical cable, and resulting product, with reduced required installation pulling force
US9431152B2 (en) 2004-09-28 2016-08-30 Southwire Company, Llc Method of manufacturing electrical cable, and resulting product, with reduced required installation pulling force
US11842827B2 (en) 2004-09-28 2023-12-12 Southwire Company, Llc Method of manufacturing electrical cable, and resulting product, with reduced required installation pulling force
US11355264B2 (en) 2004-09-28 2022-06-07 Southwire Company, Llc Method of manufacturing electrical cable, and resulting product, with reduced required installation pulling force
US11527339B2 (en) 2004-09-28 2022-12-13 Southwire Company, Llc Method of manufacturing electrical cable, and resulting product, with reduced required installation pulling force
US10023740B2 (en) 2009-03-18 2018-07-17 Southwire Company, Llc Electrical cable having crosslinked insulation with internal pulling lubricant
US11046851B2 (en) 2009-03-18 2021-06-29 Southwire Company, Llc Electrical cable having crosslinked insulation with internal pulling lubricant
US10741310B1 (en) 2015-02-12 2020-08-11 Southwire Company, Llc Non-circular electrical cable having a reduced pulling force
US11348707B1 (en) 2015-02-12 2022-05-31 Southwire Company, Llc Method of manufacturing a non-circular electrical cable having a reduced pulling force
US10431350B1 (en) 2015-02-12 2019-10-01 Southwire Company, Llc Non-circular electrical cable having a reduced pulling force

Also Published As

Publication number Publication date
DE2528307B2 (en) 1978-04-06

Similar Documents

Publication Publication Date Title
DE2528307A1 (en) Multi core flexible electric cable with lubricant coated cores - which is capable of withstanding high alternating bending stress
EP2019394B1 (en) Flexible electric cable
DE2365066C2 (en) Electric cable
EP2031604A2 (en) Flexible electric cable
DE2430792A1 (en) POWERFUL CABLE WITH PLASTIC INSULATION AND OUTER CONDUCTIVE LAYER
DE2729648A1 (en) TENSION-RESISTANT LIGHT WAVE GUIDE
WO1999048111A1 (en) Conductive slickline cable
DE2729067A1 (en) MEDIUM OR HIGH VOLTAGE ELECTRIC CABLE
EP1398799A2 (en) Electrical cable for connecting mobile electrical loads
DE2504555C3 (en) Flexible electrical line
DE2619223C3 (en) Multi-core flexible rubber hose line or cable cord
DE3304715C2 (en)
EP1176612A2 (en) Flexible electrical cable for trailing chains
DE3151234A1 (en) Flexible electrical lead
DE102016004552A1 (en) Cables, in particular high-performance power cables
DE102010044450A1 (en) Cable e.g. shielded electric cable has shield with conductive filler that is provided inside cladding, such that electrical insulated guards and protective guard are covered, and protective shell that surrounds protective guard
DE693543C (en) Nen conductors existing winding for electrical machines, especially for machines working under water
DE2538133B2 (en) Cooled single core power cable
DE899380C (en) Process for the production of power cables, especially high voltage cables
DE462599C (en) Electric waveguide
DE2742614C2 (en) Overhead cable
DE2026981A1 (en) Polyolefin-insulated electric cable - of long life - with insulated semiconducting layers
DE1708721U (en) HIGHLY FLEXIBLE INSULATED ELECTRICAL CABLE.
DE2419965A1 (en) High-tension cable comprising synthetic-rubber layers - has internal conductive ethylene/propylene rubber-layer, surrounded by crosslinked polyethylene
DE1440096C (en) High-voltage-resistant insulation for electrical cables and lines based on solid olefin polymers

Legal Events

Date Code Title Description
8235 Patent refused