EP0264684B1 - Verbundisolator mit aufgegossener isolierender Bekleidung - Google Patents

Verbundisolator mit aufgegossener isolierender Bekleidung Download PDF

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Publication number
EP0264684B1
EP0264684B1 EP87114361A EP87114361A EP0264684B1 EP 0264684 B1 EP0264684 B1 EP 0264684B1 EP 87114361 A EP87114361 A EP 87114361A EP 87114361 A EP87114361 A EP 87114361A EP 0264684 B1 EP0264684 B1 EP 0264684B1
Authority
EP
European Patent Office
Prior art keywords
fitting
fittings
sleeve
rod
composite insulator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP87114361A
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English (en)
French (fr)
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EP0264684A1 (de
Inventor
Maurice Soucille
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.)
Societe Europeenne dIsolateurs en Verre et Composite SEDIVER SA
Original Assignee
Societe Europeenne dIsolateurs en Verre et Composite SEDIVER SA
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Publication date
Application filed by Societe Europeenne dIsolateurs en Verre et Composite SEDIVER SA filed Critical Societe Europeenne dIsolateurs en Verre et Composite SEDIVER SA
Publication of EP0264684A1 publication Critical patent/EP0264684A1/de
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/32—Single insulators consisting of two or more dissimilar insulating bodies
    • H01B17/325—Single insulators consisting of two or more dissimilar insulating bodies comprising a fibre-reinforced insulating core member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/38—Fittings, e.g. caps; Fastenings therefor
    • H01B17/40—Cementless fittings

Definitions

  • the present invention relates to a method of manufacturing a composite insulator.
  • a central rod made of fibers agglomerated by a synthetic resin, the ends of which are respectively secured in blind cavities presented by two metal anchoring fittings, has its side wall coated by overmolding with a coating of fins.
  • the fin coating also extends over part of the lateral surface of the metal fitting.
  • French patent FR-A-2 541 501 also describes a form of metal fitting having an internal cylindrical housing, the inlet of which is provided with a bead defining the "inlet plane" of the fitting; the insulator creepage line is defined between the "entry planes" of the end fittings.
  • the entry of the fitting remains a critical zone, because it is the seat of power arcs which are likely to deteriorate the anchoring of the rod and the sealing.
  • British patent GB-A-2 104 171 shows another type of connection between the fittings and the rod.
  • these fittings have the form of solid cylinders.
  • the end in the shape of a full cylinder of the corresponding fitting is placed opposite one of the two ends of the rod in a metal sleeve; a sleeving is then carried out.
  • the object of the present invention is to produce an insulating coating on an insulator of the type of that of patent GB-A-2 104 171 in order to prevent any trace humidity can reach the rod and quickly deteriorate this insulator.
  • double internal anchoring This gives an isolator called "double internal anchoring" which has many advantages.
  • the quality of the covering-fittings connection is excellent; the anchoring itself is very well protected from the point of view of sealing.
  • the area where a potential arc could occur is far from the anchorage and is on a non-critical part of the fitting.
  • the creepage distance of the insulator is lengthened compared to that of the usual insulators.
  • any form of fitting can be provided: its hooking end can be in the form of a button, clevis, tenon, ball joint housing, eyelet, Y clevis in particular.
  • the insulator 30 in FIG. 1 comprises a central rod 32, and two end fittings; the fitting 31 illustrated has a cylindrical end 33 having the same diameter as the rod 32, and the other end in the form of a button 35.
  • the attachment is effected by introduction of the ends of the rod 32 and the fitting into a ductile metal tube , followed by sleeving, for example according to the method described in English patent GB-A-2,104,171.
  • the finned coating 36 of elastomer completely covers the sleeve 34, as well as a large part of the side wall 37 of the fitting 31, so as to leave only an area necessary for the attachment of the button 35.
  • the covering 36 ends in a fin 38.
  • This embodiment is particularly advantageous because it is very economical.
  • the metal part 31 has a very simple shape: the sleeve 34 can be a steel tube which is commonly found on the market and which does not need to be galvanized, since it is extremely well protected by the coating. 36.
  • the insulator 40 in FIG. 2 is very close to that of the insulator 30 in FIG. 1. Identical elements have been indicated by the same reference numbers.
  • the coating 46 is distinct from the coating 36 because it ends in a sleeve 48.
  • the cylindrical end of the fitting 51 has a diameter smaller than that of the rod 52.
  • the sleeving can still be carried out using a metal tube 54.
  • the covering 56 ends with a fin 58, while, in FIG. 4, the covering 66 of the insulator 60 ends with a sleeve 68.
  • the diameter of the rod 72 which is less than that of the cylindrical end of the fitting 71; the sleeving is carried out using a tube 74 and the elastomer coating 76 ends with a fin 78, while in the insulator 80 of FIG. 6 the coating 86 ends with a sleeve 88.
  • the line of flight of the insulator is lengthened compared to the provisions of the prior art, in particular by the fact that one can provide additional fins; the electrical performance of the insulator is improved.
  • the power arcs which risked damaging the anchoring in the previous arrangements, carry over into the extreme outer zone of the fittings, which does not present any significant drawback.
  • These fittings are made of a material chosen in particular from steel, cast iron, bronze, aluminum.
  • the invention applies for example to suspension insulators for voltages which can go beyond 735kV.

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  • Insulators (AREA)
  • Insulating Bodies (AREA)
  • Gloves (AREA)
  • Glass Compositions (AREA)
  • Organic Insulating Materials (AREA)

Claims (3)

  1. Verfahren zur Herstellung eines Verbundisolators mit einem zentralen Kern (32) aus durch Kunstharz zusammengehaltenen Fasern und mit zwei Endarmaturen (31), die je ein Ende (33) in Form eines Vollzylinders besitzen, wobei gemäß diesem Verfahren das vollzylindrische Ende jeder Armatur (31) in einer Metallhülse (34) vor eines der beiden Enden des Kerns (32) gebracht wird und die Hülse dann vermufft wird, dadurch gekennzeichnet, daß vor dem Vermuffen die Enden des Kerns (32) und der entsprechenden Armatur (31) stirnseitig voreinander in der Hülse (34) angeordnet werden,
    - nach dem Vermuffen ein zwischen Elastomermaterial und Metall wirksames Haftmittel auf die seitliche Oberfläche jeder Hülse (34) und die seitliche Oberfläche (37) der entsprechenden Armatur (31) aufgebracht wird, ausgenommen in einer Zone (35) dieser Armatur (31), die für das Aufhängen des Isolators erforderlich ist,
    - und daß man in einer Gießform auf den Kern (32) und die Hülsen (34) sowie auf die Bereiche der mit dem Haftmittel bestrichenen Armaturen (31) mittels Druckguß unter einem Druck von 50 bis 60 Bar ein Elastomer aufbringt, so daß sich eine Isolierumhüllung mit Schirmen (36) ergibt.
  2. Verfahren zur Herstellung eines Verbundisolators nach Anspruch 1, dadurch gekennzeichnet, daß man Armaturen (31) verwendet, deren Aufhängezone (35) in Form eines Sockels, Zapfens, Knopfs, einer Kappe, eines Kugelgehäuses oder einer Öse ausgebildet ist.
  3. Verfahren zur Herstellung eines Verbundisolators nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß man Armaturen (31) aus einem Material verwendet, das unter Stahl, Gußeisen, Bronze und Aluminium ausgewählt wird.
EP87114361A 1986-10-02 1987-10-01 Verbundisolator mit aufgegossener isolierender Bekleidung Expired - Lifetime EP0264684B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8613758A FR2604821B1 (fr) 1986-10-02 1986-10-02 Isolateur composite a revetement isolant surmoule
FR8613758 1986-10-02

Publications (2)

Publication Number Publication Date
EP0264684A1 EP0264684A1 (de) 1988-04-27
EP0264684B1 true EP0264684B1 (de) 1995-01-04

Family

ID=9339491

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87114361A Expired - Lifetime EP0264684B1 (de) 1986-10-02 1987-10-01 Verbundisolator mit aufgegossener isolierender Bekleidung

Country Status (8)

Country Link
EP (1) EP0264684B1 (de)
JP (1) JP2532889B2 (de)
AT (1) ATE116761T1 (de)
AU (1) AU601224B2 (de)
BR (1) BR8705112A (de)
CA (1) CA1291229C (de)
DE (1) DE3750946T2 (de)
FR (1) FR2604821B1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5233132A (en) * 1986-10-02 1993-08-03 Sediver Societe Europeenne D'isolateurs En Composite insulator comprising a fiber-resin rod and an insulating coating molded thereover
GB8802841D0 (en) * 1988-02-08 1988-03-09 Raychem Ltd High voltage insulator
FR2655471B1 (fr) * 1989-12-01 1992-02-21 Sediver Ste Europ Isolateurs V Isolateur electrique rigide.
JP4460043B2 (ja) * 2001-07-23 2010-05-12 古河電気工業株式会社 光ファイバ内蔵碍子
FR2842644B1 (fr) * 2002-07-18 2004-08-20 Sediver Fabrication d'un corps d'isolateur composite
JP4332718B2 (ja) * 2003-10-28 2009-09-16 株式会社日立製作所 絶縁碍子
WO2012143620A1 (fr) * 2011-04-19 2012-10-26 Sediver Societe Europeenne D'isolateurs En Verre Et Composite Procédé de fabrication d'un isolateur composite utilisant une résine à haute performance thermique

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2506997A1 (fr) * 1981-06-01 1982-12-03 Ceraver Procede de fabrication d'un isolateur organique
US4702873A (en) * 1983-03-25 1987-10-27 Ceraver, S.A. Method of manufacturing a composite insulator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1074367A (en) * 1964-05-28 1967-07-05 Gen Electric Improvements in electrical insulator and method of making the same
DE1932949A1 (de) * 1969-06-28 1971-01-07 Bbc Brown Boveri & Cie Hochspannungs-Verbundisolator
FR2514546A1 (fr) * 1981-06-30 1983-04-15 Ceraver Procede pour realiser une liaison entre un jonc et une armature metallique dans un isolateur composite et isolateur composite obtenu par ce procede
FR2541501B1 (fr) * 1983-02-22 1985-08-02 Ceraver Procede pour fixer un manchon metallique malleable sur un jonc en materiau composite
CH662901A5 (de) * 1983-03-09 1987-10-30 Daetwyler Ag Verfahren zur herstellung eines elektrischen kunststoffisolators und nach dem verfahren hergestellter kunststoffisolator.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2506997A1 (fr) * 1981-06-01 1982-12-03 Ceraver Procede de fabrication d'un isolateur organique
US4702873A (en) * 1983-03-25 1987-10-27 Ceraver, S.A. Method of manufacturing a composite insulator

Also Published As

Publication number Publication date
CA1291229C (fr) 1991-10-22
BR8705112A (pt) 1988-05-24
AU601224B2 (en) 1990-09-06
JP2532889B2 (ja) 1996-09-11
EP0264684A1 (de) 1988-04-27
DE3750946T2 (de) 1995-05-11
DE3750946D1 (de) 1995-02-16
ATE116761T1 (de) 1995-01-15
AU7925987A (en) 1988-04-14
JPS6398921A (ja) 1988-04-30
FR2604821B1 (fr) 1990-01-12
FR2604821A1 (fr) 1988-04-08

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