DE19917477A1 - Insulating materials - Google Patents

Insulating materials

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Publication number
DE19917477A1
DE19917477A1 DE1999117477 DE19917477A DE19917477A1 DE 19917477 A1 DE19917477 A1 DE 19917477A1 DE 1999117477 DE1999117477 DE 1999117477 DE 19917477 A DE19917477 A DE 19917477A DE 19917477 A1 DE19917477 A1 DE 19917477A1
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DE
Germany
Prior art keywords
insulating material
material according
particles
embedded
embedded particles
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.)
Withdrawn
Application number
DE1999117477
Other languages
German (de)
Inventor
Peter Mohaupt
Rainer Roeder
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.)
Cellpack AG
Original Assignee
Cellpack AG
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Filing date
Publication date
Application filed by Cellpack AG filed Critical Cellpack AG
Publication of DE19917477A1 publication Critical patent/DE19917477A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • 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
    • H01B3/40—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 epoxy resins
    • 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
    • H01B3/447—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 acrylic compounds
    • 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
    • H01B3/46—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 silicones
    • 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
    • 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
    • H02G15/02—Cable terminations
    • H02G15/06—Cable terminating boxes, frames or other structures
    • H02G15/064—Cable terminating boxes, frames or other structures with devices for relieving electrical stress
    • 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
    • H02G15/02—Cable terminations
    • H02G15/06—Cable terminating boxes, frames or other structures
    • H02G15/064—Cable terminating boxes, frames or other structures with devices for relieving electrical stress
    • H02G15/068—Cable terminating boxes, frames or other structures with devices for relieving electrical stress connected to the cable shield only
    • 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
    • H02G15/184—Cable junctions protected by sleeves, e.g. for communication cable with devices for relieving electrical stress
    • 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
    • H02G15/184—Cable junctions protected by sleeves, e.g. for communication cable with devices for relieving electrical stress
    • H02G15/188—Cable junctions protected by sleeves, e.g. for communication cable with devices for relieving electrical stress connected to a cable shield only

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)
  • Inorganic Insulating Materials (AREA)
  • Organic Insulating Materials (AREA)
  • Insulating Bodies (AREA)
  • Insulators (AREA)

Abstract

The invention relates to insulating materials with a high permittivity level (dielectric constant), for outside use. The invention also relates to the production of these materials and to their use. The inventive insulating materials are especially suitable for use in the high voltage range and are characterised by a plastic matrix consisting of silicone rubber and particles embedded therein. The average permittivity level of the embedded particles is higher than that of the plastic matrix.

Description

Die vorliegende Erfindung betrifft Isolier­ stoffe, insbesondere Hochspannungsisolierstoffe, mit einer Kunststoffmatrix und hoher Permittivität (Dielektrizi­ tätskonstante).The present invention relates to insulation substances, in particular high-voltage insulating materials, with a Plastic matrix and high permittivity (dielectric constant).

Isolierung im Hochspannungsbereich ist mit vielen Problemen verbunden. Der zum Einsatz kommende Iso­ lierstoff soll primär gute Isolierwirkung aufweisen, vor­ zugsweise aber zusätzlich die Steuerung von Feldlinien ermöglichen. Heute gebräuchliche Isolierstoffe sind mehr­ heitlich auf Kunststoffbasis, wobei hydrophobe Kunststof­ fe, insbesondere für Aussenanwendungen, bevorzugt sind. Mit den heute gebräuchlichen Isolierstoffen lassen sich die Feldlinien nur durch gestalterische Massnahmen und/oder Oberflächenbeschichtungen steuern. Sowohl in be­ zug auf ihre Isolierwirkung als auch in bezug auf die Steuerung der Feldlinien sind die heute eingesetzten Ma­ terialien aber nicht ganz zufriedenstellend.Insulation in the high voltage range is included many problems. The Iso used Lierstoff should primarily have good insulation, before preferably also the control of field lines enable. Insulating materials in use today are more Uniformly based on plastic, whereby hydrophobic plastic fe, especially for outdoor applications, are preferred. With the insulating materials commonly used today the field lines only through design measures and / or control surface coatings. Both in be pull on their insulating effect as well as in relation to the Controlling the field lines are the measures used today materials but not entirely satisfactory.

Ziel der vorliegenden Erfindung war es des­ halb, einen Isolierstoff bereitzustellen, der spezielle Isoliereigenschaften aufweist und dadurch insbesondere auch für die Anwendung im Hochspannungsbereich, d. h. für Spannungen < 1 kV, geeignet ist, und der gleichzeitig auch eine Steuerung der Feldlinien, gegebenenfals in Ab­ hängigkeit der elektrischen Feldstärke, ermöglicht.The aim of the present invention was half to provide an insulating material that is special Has insulating properties and thereby in particular also for use in the high voltage range, d. H. For Voltages <1 kV, is suitable, and at the same time also a control of the field lines, if necessary in Ab dependence of the electric field strength, enables.

Dieses Ziel wurde erreicht durch die Bereit­ stellung eines speziellen gefüllten Kunststoffs als Iso­ lierstoff. Der erfindungsgemässe Isolierstoff ist gekenn­ zeichnet durch eine Kunststoffmatrix und darin eingebet­ tete Teilchen, wobei die mittlere Permittivität der ein­ gebetteten Teilchen höher ist als jene der Kunststoffma­ trix.This goal was achieved through the willing provision of a special filled plastic as Iso lierstoff. The insulating material according to the invention is known characterized by a plastic matrix and embedded in it tete particles, the mean permittivity of a embedded particles is higher than that of plastic materials trix.

Die eingebetteten Teilchen, in der Folge als Wirkungsverstärker bezeichnet, sollten im Feldstärkenbe­ reich mit der schlechtesten Permittivität mindestens die Permittivität der Kunststoffmatrix aufweisen. Üblicher­ weise beträgt die Permittivität der Wirkungsverstärker aber wesentlich mehr, nämlich von ca. 100 bis ca. 12000.The embedded particles, hereinafter referred to as Impact amplifiers, should be in the field strength rich with the worst permittivity at least that Have permittivity of the plastic matrix. More common  the permittivity of the effect amplifiers is but much more, namely from about 100 to about 12000.

Bevorzugte Stoffe, die als Wirkungsverstärker dienen können, sind beispielsweise keramische Stoffe, insbesondere Ferroelektrika wie Ferrite, Titanate, spezi­ ell Titanate mit Barium, Strontium, Calcium, Magnesium, Zirkon und Blei, oder Mischtitanate mit diesen Metallen, und Zirkonate, wie Bleizirkonat.Preferred substances that act as enhancers can serve, for example, ceramic materials, in particular ferroelectrics such as ferrites, titanates, spec ell titanates with barium, strontium, calcium, magnesium, Zircon and lead, or mixed titanates with these metals, and zirconates such as lead zirconate.

Selbstverständlich können als Wirkungsver­ stärker geeignete Stoffe einzeln oder in Mischung unter­ einander vorliegen. Solche Mischungen sind vorzugsweise homogen, sie können bei Bedarf aber auch bewusst inhomo­ gen, z. B. mit Schichten/Zonen unterschiedlicher Konzen­ tration hergestellt werden. Für die Steuerung der Feldli­ nien ist es ferner bevorzugt, einen Wirkungsverstärker mit feldabhängiger Permittivität zu verwenden, wie sie z. B. bei gewissen Ferriten zu finden ist.Of course, as an efficacy ver more suitable substances individually or in a mixture present to each other. Such mixtures are preferred homogeneous, but you can deliberately inhomo if necessary gene, e.g. B. with layers / zones of different concentrations tration. For the control of the Feldli It is furthermore preferred to use an effect amplifier to use field-dependent permittivity, as z. B. can be found with certain ferrites.

Die Teilchen können in verschiedenen Formen, Grössen und Mengen eingesetzt werden, z. B. als Pulver, agglomeriert, gesintert, kristallin, in Grössen und Men­ gen, dass sich die einzelnen Teilchen berühren oder aber jedes einzeln in eine im wesentlichen durchgehende Kunst­ stoffmatrix eingebettet ist. Die Wahl der jeweils besten Teilchengrösse, Teilchenform und Teilchenmenge kann dem Fachmann überlassen werden und richtet sich üblicherweise nach dem gewählten Wirkungsverstärker, der gewünschten Permittivität des Isolierstoffs und den gewünschten, me­ chanischen Eigenschaften der wirkungsverstärkerhaltigen Kunststoffmatrix.The particles can come in different shapes, Sizes and quantities are used, e.g. B. as a powder, agglomerated, sintered, crystalline, in sizes and men that the individual particles touch or else each one in an essentially continuous art fabric matrix is embedded. Choosing the best Particle size, particle shape and particle quantity can To be left to a specialist and is usually determined after the chosen amplifier, the desired one Permittivity of the insulating material and the desired, me chanical properties of the effects enhancer Plastic matrix.

Als Kunststoffmatrix eignen sich eine Viel­ zahl von Stoffen. Wesentlich ist, dass sie bis über die Betriebstemperatur, heute üblicherweise 90°C, hinaus be­ ständig sind, sowohl hinsichtlich ihrer Form als auch chemisch. Ferner ist bevorzugt, dass sie selbst eine mög­ lichst hohe Permittivität und gute Kriechstromfestigkeit aufweisen und, zumindest für Aussenanwendungen, möglichst wenig hygroskop sind. Solche Stoffe sind z. B. Epoxide, Polyolefine, wie Polyethylen, Polypropylen, aber auch Po­ lyacrylate wie Polymethylmethacrylate und Silikone. Spe­ ziell bevorzugte Kunststoffe sind bereits heute als Iso­ lierstoffe eingesetzte Kunststoffe wie Silikongummi und Epoxide.A lot are suitable as a plastic matrix number of substances. It is essential that they go beyond Operating temperature, today usually 90 ° C, be are constant, both in shape and chemically. It is also preferred that it itself is possible very high permittivity and good tracking resistance have and, at least for outdoor applications, if possible are little hygroscopic. Such substances are e.g. B. epoxies,  Polyolefins, such as polyethylene, polypropylene, but also Po lyacrylates such as polymethyl methacrylates and silicones. Spe Targeted plastics are already today as Iso Plastic materials such as silicone rubber and Epoxies.

Durch die Beimischung eines Wirkungsverstär­ kers werden üblicherweise Permittivitäten des erfindungs­ gemässen Isolierstoffs von mindestens 20, vorzugsweise mindestens 100, und speziell bevorzugt mindestens 500 eingestellt. Solche Permittivitäten lassen sich durch Zu­ mischung von wenigen Gewichtsprozent erzielen, wobei üb­ licherweise im Bereich von 5 bis 50 Gew.-% gearbeitet wird.By adding an effect enhancer kers are usually permittivities of the invention according insulating material of at least 20, preferably at least 100, and particularly preferably at least 500 set. Such permittivities can be controlled by Zu achieve a mixture of a few percent by weight, whereby Licher worked in the range of 5 to 50 wt .-% becomes.

In einer bevorzugten Ausführungsform der vor­ liegenden Erfindung ändert der Wirkungsverstärker in Ab­ hängigkeit der elektrischen Feldstärke seine Permittivi­ tät. Als solche Wirkungsverstärker einsetzbare Stoffe sind beispielsweise gewisse Ferrite. Durch die Verwendung solcher Wirkungsverstärker lassen sich die Feldlinien steuern, wobei eine Linearisierung der tangentialen Feld­ linien durch den nichtlinearen Isolierstoff und gegebe­ nenfalls dessen Formgebung angestrebt wird.In a preferred embodiment of the above lying invention changes the effect amplifier in Ab dependence of the electric field strength its permittivi act. Substances that can be used as such effect enhancers are, for example, certain ferrites. By using it the field lines can be of such effect amplifiers control, linearizing the tangential field lines through the nonlinear insulating material and given if necessary, its shape is sought.

Selbstverständlich können die erfindungsgemä­ ssen Isolierstoffe zusätzlich übliche Füllstoffe enthal­ ten, wie sie dem Fachmann auf dem Gebiet bekannt sind.Of course, the invention insulation materials also contain customary fillers as known to those skilled in the art.

Die erfindungsgemässen Isolierstoffe können mittels allgemeiner Techniken für die Herstellung gefüll­ ter Kunststoffe hergestellt werden. Solche Verfahren sind z. B. Spritzgusstechnik.The insulating materials according to the invention can filled using general manufacturing techniques ter plastics are produced. Such procedures are e.g. B. Injection molding technology.

Erfindungsgemässe Isolierstoffe, sowohl li­ neare als auch nichtlineare, eignen sich für vielerlei Anwendungen, insbesondere aber für Anwendungen im Hoch­ spannungsbereich wie Isolatoren, isolierende Stützen, Ka­ belendverschlüsse, Muffen, Durchführungen für Wandler, Durchführungen, Schalterisolatoren etc..Insulating materials according to the invention, both li Linear as well as non-linear, are suitable for many things Applications, but especially for applications in the high voltage range such as insulators, insulating supports, Ka Belendverschlüsse, sleeves, bushings for transducers, Bushings, switch insulators etc.

Die erfindungsgemässen Kunststoffe lassen sich im wesentlichen wie die bisher verwendeten Kunst­ stoffe für die vorgesehene Anwendung verarbeiten, z. B. mittels Giess- und anschliessender Härtungsverfahren.Let the plastics according to the invention essentially like the art previously used  Process substances for the intended application, e.g. B. by means of casting and subsequent hardening processes.

Die vorliegende Erfindung wird nun anhand von Beispielen näher erläutert. Diese Beispiele dienen aus­ schliesslich der Illustration und sollen in keiner Weise als die Erfindung einschränkend ausgelegt werden.The present invention will now be described with reference to Examples explained in more detail. These examples are from finally the illustration and should not in any way be construed as limiting the invention.

Beispielexample Herstellung eines erfindungsgemässen Isolier­ stoffsProduction of an insulation according to the invention fabric

Ein erfindungsgemässer Isolierstoff wurde hergestellt, indem 1 Gewichtsteil Bariumtitanat (bezogen von Stettner GmbH & Co. KG, D-92318 Neumarkt) mit 10 Ge­ wichtsteilen Silikonkautschuk (bezogen von GE Bayer Sili­ cons GmbH & Co. KG, D-40699 Erkrath) gemischt, in Form gegeben und anschliessend vulkanisiert wurde.An insulating material according to the invention was prepared by 1 part by weight of barium titanate (referred from Stettner GmbH & Co. KG, D-92318 Neumarkt) with 10 Ge important parts of silicone rubber (purchased from GE Bayer Sili cons GmbH & Co. KG, D-40699 Erkrath) mixed, in the form was given and then vulcanized.

Der entsprechend hergestellte Isolierstoff zeigte gegenüber ungefülltem Silikonkautschuk die ge­ wünschten Eigenschaften, d. h. Erhöhung der Dielektrizi­ tätskonstante.The correspondingly manufactured insulating material showed the ge compared to unfilled silicone rubber desired properties, d. H. Increase in dielectric constant.

Claims (10)

1. Isolierstoff auf Kunststoffbasis, dadurch gekennzeichnet, dass er eine Kunststoffmatrix und darin eingebettet Teilchen aufweist, wobei die mittlere Permit­ tivität der eingebetteten Teilchen höher ist als jene der Kunststoffmatrix.1. Plastic-based insulating material, characterized in that it has a plastic matrix and particles embedded therein, the mean permittivity of the embedded particles being higher than that of the plastic matrix. 2. Isolierstoff gemäss Anspruch 1, dadurch gekennzeichnet, dass die eingebetteten Teilchen eine von der elektrischen Feldstärke unabhängige Permittivität ha­ ben.2. Insulating material according to claim 1, characterized characterized in that the embedded particles are one of permittivity independent of the electric field strength ha ben. 3. Isolierstoff gemäss Anspruch 1, dadurch gekennzeichnet, dass die eingebetteten Teilchen eine Per­ mittivität haben, die sich in Abhängigkeit der elektri­ schen Feldstärke ändert.3. Insulating material according to claim 1, characterized characterized in that the embedded particles have a per have mediocrity, which depends on the electri field strength changes. 4. Isolierstoff gemäss einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die eingebetteten Teilchen ausgewählt sind aus der Gruppe umfassend Titana­ te, Zirkonate und Ferrite.4. Insulating material according to one of claims 1 to 3, characterized in that the embedded Particles are selected from the group comprising titana te, zirconate and ferrite. 5. Isolierstoff gemäss einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die eingebetteten Teilchen Titanate mit Barium, Strontium, Calcium, Magne­ sium, Zirkon und Blei, oder Mischtitanate mit diesen Me­ tallen sind.5. Insulating material according to one of claims 1 to 4, characterized in that the embedded Particles titanate with barium, strontium, calcium, magne sium, zircon and lead, or mixed titanates with these metals are tall. 6. Isolierstoff gemäss einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die eingebetteten Teilchen Ferrite sind.6. Insulating material according to one of claims 1 to 4, characterized in that the embedded Particles are ferrites. 7. Isolierstoff gemäss einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Kunststoffmatrix ausgewählt ist aus der Gruppe umfassend Epoxide, Polyole­ fine, Polyacrylate und Silikone.7. Insulating material according to one of claims 1 to 6, characterized in that the plastic matrix is selected from the group comprising epoxies, polyols fine, polyacrylates and silicones. 8. Verfahren zur Herstellung eines Isolier­ stoffs nach einem der Ansprüche 1 bis 7, dadurch gekenn­ zeichnet, dass die einzubettenden Teilchen und der Kunst­ stoff der Matrix gemischt werden.8. Method of making an insulation substance according to one of claims 1 to 7, characterized records that the particles to be embedded and the art material of the matrix can be mixed. 9. Verfahren zur Herstellung einer Isolie­ rung, insbesondere für den Hochspannungsbereich, dadurch gekennzeichnet, dass ein Isolierstoff gemäss einem der Ansprüche 1 bis 7 mittels eines Giessverfahrens und an­ schliessendes Ausvulkanisieren geformt wird.9. Method of making an isolation tion, especially for the high-voltage range, thereby  characterized in that an insulating material according to one of the Claims 1 to 7 by means of a casting process and final vulcanization is formed. 10. Verwendung eines Isolierstoffs gemäss ei­ nem der Ansprüche 1 bis 7 in Isolatoren, isolierenden Stützen, Kabelendverschlüssen, Muffen, Durchführungen für Wandler, Durchführungen und Schalterisolatoren.10. Use of an insulating material according to egg nem of claims 1 to 7 in isolators, isolating Supports, cable terminations, sleeves, bushings for Transducers, bushings and switch isolators.
DE1999117477 1998-08-25 1999-04-17 Insulating materials Withdrawn DE19917477A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH174098 1998-08-25

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DE (1) DE19917477A1 (en)
WO (1) WO2000011683A1 (en)

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DE3743964C2 (en) * 1986-12-23 1992-09-10 Matsushita Electric Works, Ltd., Kadoma, Osaka, Jp
DE4007337A1 (en) * 1990-03-08 1991-09-12 Asea Brown Boveri Electrical insulator supporting conductor inside earthed sleeve - includes field modifying element formed by layers having high dielectric constant compared with insulator material
EP0690459B1 (en) * 1994-06-30 1998-08-05 Sumitomo Wiring Systems, Ltd. Coil type high-tension resistive cable for preventing noise
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* Cited by examiner, † Cited by third party
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US20110011640A1 (en) * 2008-02-21 2011-01-20 The University Of Manchester Insulating medium and its use in high voltage devices

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