DE1815356B2 - Cable connections or terminations for high-voltage conductors made from elastic bands - Google Patents

Cable connections or terminations for high-voltage conductors made from elastic bands

Info

Publication number
DE1815356B2
DE1815356B2 DE19681815356 DE1815356A DE1815356B2 DE 1815356 B2 DE1815356 B2 DE 1815356B2 DE 19681815356 DE19681815356 DE 19681815356 DE 1815356 A DE1815356 A DE 1815356A DE 1815356 B2 DE1815356 B2 DE 1815356B2
Authority
DE
Germany
Prior art keywords
ethylene
insulating tapes
cable connections
connections according
copolymers
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
DE19681815356
Other languages
German (de)
Other versions
DE1815356A1 (en
Inventor
Manfred Dr.Phil. Saure
Johann Dipl.-Chem. Wartusch
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DE19681815356 priority Critical patent/DE1815356B2/en
Publication of DE1815356A1 publication Critical patent/DE1815356A1/en
Publication of DE1815356B2 publication Critical patent/DE1815356B2/en
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/08—Cable junctions
    • H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
    • H02G15/196—Cable junctions protected by sleeves, e.g. for communication cable having lapped insulation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/14—Peroxides
    • 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
    • H01B3/48—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
    • H01B3/50—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 fabric
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/003—Filling materials, e.g. solid or fluid insulation

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Cable Accessories (AREA)

Description

Die vorliegende Erfindung bezieht sich auf einen mn Polyolefinen isolierten Hocrrpannungsleiler. welcher mit einer W'jklung aus elastischen Bändern, insbesondere in Form einer Wickelmuffe, zur Herstellung von Verbindungen. Abzweigungen oder hndenabschlüssen verseHcn ist.The present invention relates to a polyolefin insulated high voltage cable. which is made of elastic bands, in particular in the form of a winding sleeve, for the production of connections. Branches or hand closures .

Es ist bereits bekannt, an Stelle von Gießharzmuffen vulkanisierbare Bär.der aus Naturkautschuk, Butylkautschuk oder Nitrilkautschuk zur Herstellung dieser Wik- hclmuffcn zu verwenden. Die Anwendung dieser bc kannten, mit Schwefel vernetzbaren Isolierbänder ist nachteilig, da damit zu rechnen ist. daß nach längerer Betriebszeit eine Alterung, insbesondere eine Versprö- (dung, der Isolation auftritt. Die Isolation aus den be kanntet Isolierbändern läßt außerdem zu wünschen üb r\g, da sie auch in dielektrischer Hinsicht den zu stellenden Anforderungen nicht immer genügt. Bei einer Kabelisolation auf Polyäthylen-Basis würden Isolierbänder aus den bekannten Vulkanisaten den guten Eigenschaften der Kabelisolation nicht gerecht werden. Darüber hinaus ist nicht in allen Fällen eine genügend homogene Verbindung der Isolierbänder mit der Kabelisolation zu gewährleisten. It is already known to use vulcanizable bearings made of natural rubber, butyl rubber or nitrile rubber instead of cast resin sleeves for the production of these roller sleeves . The use of these bc known insulating tapes which can be crosslinked with sulfur is disadvantageous because it is to be expected. that after a long period of operation aging, in particular embrittlement , occurs in the insulation. The insulation from the known insulating tapes also leaves something to be desired, since it does not always meet the requirements in dielectric terms Cable insulation based on polyethylene, insulating tapes made from the known vulcanizates would not do justice to the good properties of the cable insulation.

Rs war bereits bekannt, thermoplastische Bänder für die Herstellung von Verbindungen oder Endenabschlussen auf eine thermoplastische Isolation eines Kabels aufzubringen. It was already known to apply thermoplastic tapes for the production of connections or terminations to a thermoplastic insulation of a cable.

Bei derartigen Verbindungen ist mit der Gefahr zu rechnen, daß infolge der bei der Verschweißung der Bander und der Isolation auftretenden Rekristallisierungserseheinimgen Spannungsrisse in der Isolation sich bemerkbar machen, welche das Kabel unbrauchbar werden lassen.In the case of such connections, there is a risk that, as a result of the welding process, the Ribbons and the isolation occurring recrystallization Stress cracks in the insulation become noticeable, which make the cable unusable be let.

Die Anwendung von bereits vernetzten Bändern furThe application of already networked tapes for

ίο diesen Zweck führt zu einer unzureichenden Verschweißung und beseitigt nicht die Gefahr der Spannungsrisse. ίο this purpose leads to insufficient welding and does not eliminate the risk of stress cracks.

Die genannten Schwierigkeiten können weitgehend beseitigt werden, wenn erfindungsgemäß IsolierbänderThe difficulties mentioned can be largely eliminated if insulating tapes according to the invention

für die Kabelverbindungen verwendet werden, welche aus organische Peroxide enthaltenden Homopolymerisaten des Äthylen und/oder Mischpolymerisaten des Äthylens mit mindestens einem weiteren mischpolymerisationsfähigen Monomeren bestehen.for the cable connections are used, which are made from homopolymers containing organic peroxides of ethylene and / or copolymers of ethylene with at least one other copolymerizable Monomers exist.

Für die erlindungsgemäße Anwendung haben sich insbesondere Isolierbänder aus Terpolvmeren des Äth>lens wie z. B. solche aus Äthslen/Propylen und geringen Anteilen Dic\clopentandien als vorteilhaft erwiesen, jedoch können auch peroxidisch vernetzbareFor use in accordance with the invention in particular insulating tapes from Terpolvmeren des Äth> lens such. B. those from Äthslen / propylene and low Proportions of dic \ clopentandiene proven to be advantageous, however, peroxidically crosslinkable

Homopolymerisate des Äthylens. Misch.pol\merisate aus Äthylen und Propylen oder Äthylen und VinvKerbindungen oder Gemische dieser Polymerisate verwendet werden.Ethylene homopolymers. Mixed polymers of ethylene and propylene or ethylene and vinyl compounds or mixtures of these polymers can be used.

Als peroxidische Vernetzungsmittel werden vorteilhaft organische Bisperoxide, wie z. B. 1.3-Ditert.-but\lpe roxy-diisopropy !benzol, eingesetzt.Organic bisperoxides, such as. B. 1.3-Ditert.-but \ lpe roxy-diisopropy-benzene is used.

Zur Anpassung an die jeweiligen Verarbeitungsbedingungen können Isolierbänder aus Mischpolymerisaten verwendet werden, welche neben den peroxidisehen Vernetzungsmitteln noch weitere Füll-, Verstarkungs- oder Gerüststoffe enthalten. Für bestimmte Zwecke können auch Trägerkörper in Form von gewebten oder nicht gewebten organischen oder anorganischen Faserstoffen oder aus Folien verwendet wer-Insulating tapes made from copolymers can be used to adapt to the respective processing conditions are used, which in addition to the peroxidic crosslinking agents also contain other fillers, reinforcements or contain builders. For certain purposes, support bodies in the form of woven can also be used or non-woven organic or inorganic fiber materials or made of foils are used

den.the.

Die Isolierbänder lassen sich durch thermische Behandlung vernetzen und ergeben eine dichte Verbindung bzw. Verschweißung der Wickellagen untereinander und auch überraschenderweise mit der Leiterisolation auf Polyolcfinbasis. Dieses ist insbesondere dann von Bedeutung, wenn die Leitcrisolation aus vernetztcm Polyäthylen besteht, das auf Grund seiner vorherigen Vernetzung für eine Verschweißt^ mit einem anderen Polyolefin allein durch Wärmeeinwirkung keine ausreichende Haftung bietet. Mit einem peroxidisch vernelzbaren Isol'crband wird dagegen nach der Hitzcbchandlung eine derartig homogene Ven.chweißung des Isolierbandes mit der Leiterisolation erreicht, daß die Verschweißungsstelle allen mechanischen und elektrischen Ansprüchen genügt und keine geringere Beabspruchbarkeit als die angrenzenden Schichten aufweist.The insulating tapes can be crosslinked by thermal treatment and produce a tight connection or welding of the winding layers to one another and, surprisingly, to the conductor insulation based on polyolefin. This is particularly important when the conductor insulation is crosslinked There is polyethylene, which due to its previous crosslinking for one welded ^ with another Polyolefin does not provide sufficient adhesion through the action of heat alone. With a peroxidic On the other hand, fusible insulating tape becomes after the heat treatment such a homogeneous Ven.chweißung the insulating tape with the conductor insulation achieved that the welding point all mechanical and electrical Sufficient requirements and no less stress-bearing capacity than the adjacent layers.

Zur Unterstützung der dichten Verschweißung derTo support the tight welding of the

Wickcllagcn untereinander und des Wickels mit derWrap layers with each other and the wrap with the

Isolation, zur Vermeidung von Hohlräumen in der auf-Isolation, to avoid voids in the

zubringenden Isolierschicht während des Vernetzens und zum Fernhalten des die peroxidische Vernetzung inhibierenden Luftsauerstoffs kann die Wickelisolation mit einem elastischen Band, insbesondere einem vulkanisierten Gummiband als äußerste Schicht versehento be applied insulating layer during the crosslinking and to keep away the peroxidic crosslinking inhibiting atmospheric oxygen, the winding insulation can be provided with an elastic band, in particular a vulcanized rubber band, as the outermost layer werden. Im Gegensatz zu wenig dehnbaren Textilbändern folgt das elastische Band beim Aufheizen der Wärmeausdehnung der Wickelmuffe und der Isolation. Beim Abkühlen übt es einen hinreichenden Druck aus.will. In contrast to less stretchable textile tapes, the elastic tape follows the heating up Thermal expansion of the winding sleeve and the insulation. As it cools, it exerts sufficient pressure.

Diese Deckschicht aus vernctzteni elastischen Material kann zusätzlich elektrisch hulblciicndc Eigenschaften besitzen, damit es als ebenfalls fest mit der Wiekelnuiffe verschweißte äußere halbleitende Schicht beim Kabelaufbau dienen kann.This top layer made of cross-linked elastic material can additionally have electrical hulblciicndc properties own so that it as also firmly with the Wiekeluiffe welded outer semiconducting layer can serve in cable construction.

Claims (7)

Patentansprüche:Patent claims: 1. Aus elastischen Bandern hergestellte KabeKerbindungen oder Enc'jnabschlüsse für Hochspannungsleiter mit einer Isolation aus Pol>olefin, dadurch gekennzeichnet, daß Isolierbänder aus organische Peroxiue enthaltenoen Homopo-Iymerisaten des Äthylens und/oder Mischpolymerisaten des Äthylens und mindestens einem weiteren mischpolymerisationsfähigen Monomeren verwendet werden.1. Cable ties made from elastic bands or Enc'jnab terminations for high voltage conductors with an insulation from pole> olefin, thereby characterized that insulating tapes from organic peroxides contained homopo-Iymerisaten of ethylene and / or copolymers of ethylene and at least one other copolymerizable monomers are used. 2. Kabelverbindungen nach Anspruch 1, dadurch gekennzeichnet, daß Isolierbänder aus Copolymerisaten des Äthylens und einem weiteren Olefin, insbesondere aus Äthylen/Propylen, verwendet werden. 2. Cable connections according to claim 1, characterized in that insulating tapes made of copolymers of ethylene and another olefin, in particular from ethylene / propylene, can be used. 3. Kabelverbindungen nach Anspiuch 1, dadurch gekennzeichnet, daß als Isolierbänder Terpolymere aus Äthylen/Propylen und einem weiteren, insbesondere mehrfach ungesättigten Monomeren verwendet sind.3. Cable connections according to Claim 1, characterized in that terpolymers are used as insulating tapes used from ethylene / propylene and another, in particular polyunsaturated monomer are. 4. Kabelverbindungen nach Anspruch I. dadurch gekennzeichnet, daß Isolierbänder aus Mischpolymerisaten uus Äthylen und Vinylverbindungen verwendet sind.4. Cable connections according to claim I. characterized in that insulating tapes made of copolymers uus ethylene and vinyl compounds are used. 5. Kabelverbindungen nach Anspruch 1. dadurch gekennzeichnet, daß vernetzbare Isolierbänder verwendet sind, welche organische Bisperoxide enthalten. 5. Cable connections according to claim 1, characterized in that crosslinkable insulating tapes are used which contain organic bisperoxides. ö. Kabelverbindungen nach Anspruch 1, dadurch gekennzeichnet, daß vernetzbare Isolierbänder \ er-'.verviet sind, die als organisches Bisperoxid i.i-Dit crt.-bu ty Iperoxy-diisopropy !benzol enthalten.Ö. Cable connections according to Claim 1, characterized in that cross-linkable insulating tapes are vied are available as organic bisperoxide i.i-Dit crt.-bu ty Iperoxy-diisopropy! benzene. 7. Kabclverbindungen nach Anspruch I bis 6. dadurch gekennzeichnet, daß der vernetzbare Wickel aus den Isolierbändern mit einer Druckmanschette aus einem vernetzten, gegebenenfalls halbierenden Gummiband bewickelt sind.7. Kabclverbindungen according to claim I to 6, characterized in that the crosslinkable winding from the insulating tapes with a pressure cuff from a cross-linked, possibly bisecting Are wrapped in rubber band.
DE19681815356 1968-12-18 1968-12-18 Cable connections or terminations for high-voltage conductors made from elastic bands Ceased DE1815356B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19681815356 DE1815356B2 (en) 1968-12-18 1968-12-18 Cable connections or terminations for high-voltage conductors made from elastic bands

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681815356 DE1815356B2 (en) 1968-12-18 1968-12-18 Cable connections or terminations for high-voltage conductors made from elastic bands

Publications (2)

Publication Number Publication Date
DE1815356A1 DE1815356A1 (en) 1970-07-02
DE1815356B2 true DE1815356B2 (en) 1975-03-20

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DE19681815356 Ceased DE1815356B2 (en) 1968-12-18 1968-12-18 Cable connections or terminations for high-voltage conductors made from elastic bands

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2558080A1 (en) * 1975-04-11 1976-10-21 Sola Basic Ind Inc VOLTAGE REDUCING ELASTOMERIAL MATERIAL AND DEVICES MANUFACTURED FROM IT
DE2753835A1 (en) * 1977-11-30 1979-05-31 Siemens Ag High voltage power cable connecting bushing - made up of selectively conductive crosslinkable ethylene! propylene! copolymer or terpolymer tapes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2558080A1 (en) * 1975-04-11 1976-10-21 Sola Basic Ind Inc VOLTAGE REDUCING ELASTOMERIAL MATERIAL AND DEVICES MANUFACTURED FROM IT
DE2753835A1 (en) * 1977-11-30 1979-05-31 Siemens Ag High voltage power cable connecting bushing - made up of selectively conductive crosslinkable ethylene! propylene! copolymer or terpolymer tapes

Also Published As

Publication number Publication date
DE1815356A1 (en) 1970-07-02

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