EP0226474B1 - Dispositif de protection d'un capot d'isolateur électrique de suspension contre la corrosion - Google Patents

Dispositif de protection d'un capot d'isolateur électrique de suspension contre la corrosion Download PDF

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Publication number
EP0226474B1
EP0226474B1 EP86400607A EP86400607A EP0226474B1 EP 0226474 B1 EP0226474 B1 EP 0226474B1 EP 86400607 A EP86400607 A EP 86400607A EP 86400607 A EP86400607 A EP 86400607A EP 0226474 B1 EP0226474 B1 EP 0226474B1
Authority
EP
European Patent Office
Prior art keywords
cap
dielectric
base
insulator
wall
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
EP86400607A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0226474A1 (fr
Inventor
Daniel De Decker
René Parraud
Serge Tartier
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
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 Societe Europeenne dIsolateurs en Verre et Composite SEDIVER SA filed Critical Societe Europeenne dIsolateurs en Verre et Composite SEDIVER SA
Priority to AT86400607T priority Critical patent/ATE92208T1/de
Publication of EP0226474A1 publication Critical patent/EP0226474A1/fr
Application granted granted Critical
Publication of EP0226474B1 publication Critical patent/EP0226474B1/fr
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
    • H01B17/42—Means for obtaining improved distribution of voltage; Protection against arc discharges

Definitions

  • the present invention relates to a device for protecting an electric suspension insulator cover against corrosion, said cover being fixed to the head of a dielectric made of glass, porcelain, or synthetic insulating material.
  • the insulators concerned form suspension chains intended in particular for medium, high and very high voltage power transmission lines (150 kV, 250 kV for example).
  • Patent document FR-A-23 32 598 discloses an insulator whose fitting ends opposite the insulator by a sacrificial ring on which the effects of electrolytic corrosion are concentrated when a DC voltage is applied to this insulator .
  • a sacrificial ring is not capable of producing the effects of arcs, in particular when industrial frequencies are applied to the insulator.
  • the protection device according to the invention also has the enormous advantage of protecting the cover of the insulator against electrolytic corrosion by being corroded before it (according to the well-known principle of 'a sacrificed electrode).
  • an insulator 1 belonging to a suspension chain It comprises a glass dielectric 2, the skirt of which can be seen, and the head of which is sealed in a metal cover 3, provided with a zinc coating by a galvanizing treatment.
  • a metal rod 5 is fixed inside the head of the dielectric 2.
  • a piece 30 of zinc or aluminum of revolution is interposed between the base 6 of the cover 3 and the outer face 7 of the skirt of the dielectric 2 around the axis of the head of the insulator and having the shape of a solid torus with a projection wedged between said face 7 and said base 6.
  • This projection provides a central opening 11 making it possible to thread the part 30 on the head of the dielectric 2 before the fitting the cover 3.
  • the outer wall 31 of the part 30 has a curvature oriented towards the cover 3.
  • the structure according to the invention brings additional advantages.
  • the cover 3 has a positive polarity with respect to the dielectric 2, there is observed in the absence of part 30 a leakage current creating significant electrolytic corrosion at the base 6 of the cover 3.
  • the part 30 is in place, it is it which undergoes corrosion and thus protects the cover 3.
  • the part 30 is molded directly on the insulator with its sealed cover.
  • the dielectric can be glass or any synthetic insulating material, and the cover can be the end fitting of an organic insulator.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulators (AREA)
  • Cable Accessories (AREA)
  • Buffer Packaging (AREA)
  • Centrifugal Separators (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
EP86400607A 1985-11-15 1986-03-21 Dispositif de protection d'un capot d'isolateur électrique de suspension contre la corrosion Expired - Lifetime EP0226474B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86400607T ATE92208T1 (de) 1985-11-15 1986-03-21 Korrosionsschutzeinrichtung an der kappe eines elektrischen haengeisolators.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8516919 1985-11-15
FR8516919A FR2590398B1 (fr) 1985-11-15 1985-11-15 Dispositif de protection d'un capot d'isolateur electrique de suspension contre la corrosion

Publications (2)

Publication Number Publication Date
EP0226474A1 EP0226474A1 (fr) 1987-06-24
EP0226474B1 true EP0226474B1 (fr) 1993-07-28

Family

ID=9324858

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86400607A Expired - Lifetime EP0226474B1 (fr) 1985-11-15 1986-03-21 Dispositif de protection d'un capot d'isolateur électrique de suspension contre la corrosion

Country Status (14)

Country Link
US (1) US4670624A (es)
EP (1) EP0226474B1 (es)
JP (1) JPH0685285B2 (es)
AT (1) ATE92208T1 (es)
AU (1) AU591392B2 (es)
BR (1) BR8601626A (es)
CA (1) CA1253225A (es)
DE (1) DE3688777T2 (es)
ES (1) ES296682Y (es)
FR (1) FR2590398B1 (es)
MX (1) MX161729A (es)
NO (1) NO168218C (es)
NZ (1) NZ215657A (es)
ZA (1) ZA862421B (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62274510A (ja) * 1986-05-22 1987-11-28 日本碍子株式会社 懸垂碍子
GB2225176A (en) * 1988-11-18 1990-05-23 Sp Kt Bjuro Izolyatoram I Arma High-voltage suspension insulator
FR2680041B1 (fr) * 1991-07-31 1996-07-12 Saint Gobain Emballage Piece dielectrique en verre pour isolateur electrique.
FR3057697B1 (fr) 2016-10-18 2020-02-14 Sediver Sa Isolateur pour lignes electriques aeriennes avec un detecteur de courant de fuite protege
KR102138928B1 (ko) * 2020-05-22 2020-07-29 주식회사 코리아오션텍 소화기능을 갖는 전선연결구

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB135667A (es) * 1900-01-01
US1659183A (en) * 1921-10-20 1928-02-14 Ohio Brass Co Insulator
US1730232A (en) * 1927-04-28 1929-10-01 Westinghouse Electric & Mfg Co Insulator structure
US2023808A (en) * 1933-02-16 1935-12-10 Locke Insulator Corp Shielded cemented type insulator
DE966717C (de) * 1940-11-15 1957-09-05 Porzellanfabrik Kahla Lichtbogenschutzeinrichtung an den Kappen von Isolatoren, Durchfuehrungen od. dgl.
US3832482A (en) * 1972-07-17 1974-08-27 Westinghouse Electric Corp Ehv rain-shield and voltage grading ring for high-voltage equipment
GB1451071A (en) * 1973-02-17 1976-09-29 Trans Dev Ltd High voltage electric insulator termination constructions
JPS5269598U (es) * 1975-11-19 1977-05-24
US4016358A (en) * 1976-03-11 1977-04-05 Richards Clyde N Electrical insulator with contamination and flash-over eliminator
US4185161A (en) * 1977-08-22 1980-01-22 The United States Of America As Represented By The Secretary Of The Navy Modular guyline insulator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Le Petit Robert 1, p.1980 *

Also Published As

Publication number Publication date
JPH0685285B2 (ja) 1994-10-26
ATE92208T1 (de) 1993-08-15
NO168218C (no) 1992-01-22
DE3688777T2 (de) 1993-11-11
ZA862421B (en) 1986-09-29
ES296682U (es) 1987-12-01
MX161729A (es) 1990-12-20
DE3688777D1 (de) 1993-09-02
FR2590398B1 (fr) 1988-09-09
FR2590398A1 (fr) 1987-05-22
NO168218B (no) 1991-10-14
NO861242L (no) 1987-05-18
CA1253225A (fr) 1989-04-25
BR8601626A (pt) 1987-11-03
JPS62119813A (ja) 1987-06-01
AU5605886A (en) 1987-05-21
US4670624A (en) 1987-06-02
AU591392B2 (en) 1989-11-30
ES296682Y (es) 1988-06-01
NZ215657A (en) 1989-02-24
EP0226474A1 (fr) 1987-06-24

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