EP0264684A1 - Verbundisolator mit aufgegossener isolierender Bekleidung - Google Patents

Verbundisolator mit aufgegossener isolierender Bekleidung Download PDF

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Publication number
EP0264684A1
EP0264684A1 EP87114361A EP87114361A EP0264684A1 EP 0264684 A1 EP0264684 A1 EP 0264684A1 EP 87114361 A EP87114361 A EP 87114361A EP 87114361 A EP87114361 A EP 87114361A EP 0264684 A1 EP0264684 A1 EP 0264684A1
Authority
EP
European Patent Office
Prior art keywords
fittings
insulator
composite insulator
coating
rod
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.)
Granted
Application number
EP87114361A
Other languages
English (en)
French (fr)
Other versions
EP0264684B1 (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
Ceraver SA
Societe Europeenne dIsolateurs en Verre et Composite SEDIVER SA
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 Ceraver SA, Societe Europeenne dIsolateurs en Verre et Composite SEDIVER SA filed Critical Ceraver SA
Publication of EP0264684A1 publication Critical patent/EP0264684A1/de
Application granted granted Critical
Publication of EP0264684B1 publication Critical patent/EP0264684B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 composite insulator with an overmolded insulating coating.
  • a composite insulator with an overmolded insulating coating Such an insulator and a method for its manufacture are described in particular in French patent No. 2 506 997. It comprises a ring of fibers agglomerated by a synthetic resin, whose ends are respectively secured in blind holes provided by two metal fittings d anchoring, and the side wall of which receives by overmolding a finned coating of elastomer, for example of EPDM.
  • Each metal fitting described for example in French Patent No. 2,541,501, thus presents an internal cylindrical housing whose inlet is provided with a bead defining the "entrance plane" of the fitting; the insulator creepage line is defined between the "entry planes" of the two end fittings.
  • the insulating coating of the rod must adhere perfectly to the internal face of the bead to prevent any trace of moisture from reaching the rod and rapidly damaging the insulator.
  • the entry of the fitting remains a critical area, because it is the seat of power arcs which are likely to deteriorate the anchoring of the rod and the sealing.
  • the present invention aims to avoid these drawbacks.
  • the subject of the present invention is a composite insulator with an overmolded insulating coating, comprising a central rod of fibers agglomerated by a synthetic resin, two end fittings, a coating of elastomeric fins, characterized in that each end of said rod and the the end of the corresponding fitting which has the shape of a solid cylinder are placed end to end and clamped in a common sleeve, and that said covering covers the entire side wall of said sleeve and at least part of the side wall of said fittings, so as to leave only an area necessary for hanging the insulator.
  • double internal anchoring This gives an isolator called "double internal anchoring" which has many advantages. For a given length of insulator, the creepage distance of the insulator is extended. The anchor itself is much better protected from the point of view of sealing. In addition, the area where a power arc can occur is far from the anchor and is on a non-critical part of the fitting.
  • 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 introducing the ends of the rod 32 and the fitting into a metal tube 34 ductile, followed by swaging, for example by the process described in french patent No. 2 514 546.
  • the coating fins 36 completely covers the elastomeric tube 34, and 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 with a fin 38.
  • This embodiment is particularly advantageous because it is very economical.
  • the metal part 31 has a very simple shape; the tube 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 covering 46 is distinct from the covering 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. 6, 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. 8 the coating 86 ends with a sleeve 88.
  • the line of flight of the insulator is elongated compared to the provisions of the prior art, in particular by the fact that it is possible to provide additional fins; the electrical performance of the insulator is improved.
  • the power arcs which risked deteriorating the anchoring in the previous arrangements, are carried over into the extreme outer zone of the fittings, which does not present any significant drawback.
  • These fittings are made of a material chosen from steel, cast iron, bronze, aluminum in particular.
  • the invention applies for example to suspension insulators for voltages which can go beyond 735 Kvolts.

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  • Insulators (AREA)
  • Insulating Bodies (AREA)
  • Gloves (AREA)
  • Glass Compositions (AREA)
  • Organic Insulating Materials (AREA)
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
FR8613758 1986-10-02
FR8613758A FR2604821B1 (fr) 1986-10-02 1986-10-02 Isolateur composite a revetement isolant surmoule

Publications (2)

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

Cited By (5)

* 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
EP0430135B1 (de) * 1989-12-01 1995-05-10 Sediver, Societe Europeenne D'isolateurs En Verre Et Composite Starrer elektrischer Isolator
EP1383141A1 (de) * 2002-07-18 2004-01-21 Sediver Société Europeenne d'Isolateurs en Verre et Composite Herstellung eines Verbundisolatorkörpers
EP1528576A2 (de) * 2003-10-28 2005-05-04 Hitachi, Ltd. Elektrischer Isolator
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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8802841D0 (en) * 1988-02-08 1988-03-09 Raychem Ltd High voltage insulator
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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1515766A1 (de) * 1964-05-28 1969-12-11 Gen Electric Elektrischer Isolator
DE1932949A1 (de) * 1969-06-28 1971-01-07 Bbc Brown Boveri & Cie Hochspannungs-Verbundisolator
GB2104171A (en) * 1981-06-30 1983-03-02 Ceraver Method of joining an insulating rod to a metal end piece
EP0121133A2 (de) * 1983-03-09 1984-10-10 DÄTWYLER AG Schweizerische Kabel- Gummi- und Kunststoffwerke Verfahren zur Herstellung eines elektrischen Kunststoffisolators und nach dem Verfahren hergestellter Verbundisolator

Family Cites Families (3)

* 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
FR2541501B1 (fr) * 1983-02-22 1985-08-02 Ceraver Procede pour fixer un manchon metallique malleable sur un jonc en materiau composite
FR2543356B1 (fr) * 1983-03-25 1986-01-10 Ceraver Procede et dispositif de moulage du revetement isolant d'un isolateur organique de grande longueur

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1515766A1 (de) * 1964-05-28 1969-12-11 Gen Electric Elektrischer Isolator
DE1932949A1 (de) * 1969-06-28 1971-01-07 Bbc Brown Boveri & Cie Hochspannungs-Verbundisolator
GB2104171A (en) * 1981-06-30 1983-03-02 Ceraver Method of joining an insulating rod to a metal end piece
EP0121133A2 (de) * 1983-03-09 1984-10-10 DÄTWYLER AG Schweizerische Kabel- Gummi- und Kunststoffwerke Verfahren zur Herstellung eines elektrischen Kunststoffisolators und nach dem Verfahren hergestellter Verbundisolator

Cited By (8)

* 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
EP0430135B1 (de) * 1989-12-01 1995-05-10 Sediver, Societe Europeenne D'isolateurs En Verre Et Composite Starrer elektrischer Isolator
EP1383141A1 (de) * 2002-07-18 2004-01-21 Sediver Société Europeenne d'Isolateurs en Verre et Composite Herstellung eines Verbundisolatorkörpers
FR2842644A1 (fr) * 2002-07-18 2004-01-23 Sediver Fabrication d'un corps d'isolateur composite
US6822167B2 (en) 2002-07-18 2004-11-23 Sediver, Societe Europeenne D'isolateurs En Verre Et Composite Making a composite insulator body
EP1528576A2 (de) * 2003-10-28 2005-05-04 Hitachi, Ltd. Elektrischer Isolator
EP1528576A3 (de) * 2003-10-28 2006-02-01 Hitachi, Ltd. Elektrischer Isolator
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

Also Published As

Publication number Publication date
FR2604821A1 (fr) 1988-04-08
DE3750946D1 (de) 1995-02-16
CA1291229C (fr) 1991-10-22
DE3750946T2 (de) 1995-05-11
JPS6398921A (ja) 1988-04-30
FR2604821B1 (fr) 1990-01-12
AU601224B2 (en) 1990-09-06
BR8705112A (pt) 1988-05-24
AU7925987A (en) 1988-04-14
JP2532889B2 (ja) 1996-09-11
ATE116761T1 (de) 1995-01-15
EP0264684B1 (de) 1995-01-04

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