EP0126984B1 - Verschmutzungsunempfindlicher elektrischer Isolator - Google Patents

Verschmutzungsunempfindlicher elektrischer Isolator Download PDF

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Publication number
EP0126984B1
EP0126984B1 EP84104677A EP84104677A EP0126984B1 EP 0126984 B1 EP0126984 B1 EP 0126984B1 EP 84104677 A EP84104677 A EP 84104677A EP 84104677 A EP84104677 A EP 84104677A EP 0126984 B1 EP0126984 B1 EP 0126984B1
Authority
EP
European Patent Office
Prior art keywords
coating
zinc oxide
insulator
pollution
layer
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
Application number
EP84104677A
Other languages
English (en)
French (fr)
Other versions
EP0126984A1 (de
Inventor
Ai Bui
Laurent Pargamin
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.)
Ceraver SA
Original Assignee
Ceraver 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9288375&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0126984(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ceraver SA filed Critical Ceraver SA
Priority to AT84104677T priority Critical patent/ATE28533T1/de
Publication of EP0126984A1 publication Critical patent/EP0126984A1/de
Application granted granted Critical
Publication of EP0126984B1 publication Critical patent/EP0126984B1/de
Expired 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
    • H01B17/50—Insulators or insulating bodies characterised by their form with surfaces specially treated for preserving insulating properties, e.g. for protection against moisture, dirt, or the like
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
    • H01B19/04—Treating the surfaces, e.g. applying coatings

Claims (3)

1. Elektrischer Isolator (1) mit einer verringerten Schmutzempfindlichkeit, mit einem Körper aus einem dielektrischen Material (3), das aus Glas und Porzellan ausgewählt wird, wobei der Körper eine äußere halbleitende Umhüllung (6) aufweist, die aus einer Keramikschicht besteht, dadurch gekennzeichnet, daß die Keramikschicht im wesentlichen Zinkoxid aufweist, dem mindestens ein Metalloxid zugefügt ist, das eine Nichtlinearität in der Spannung-Strom-Kurve des Zinkoxids erzeugt, wie 1 = kV a, wobei a zwischen 20 und 50 liegt, wobei die Dicke der Umhüllung zwischen 0,05 und 0,5 mm liegt.
2. Isolator nach Anspruch 1, dadurch gekennzeichnet, daß der Gehalt an Zinkoxid in der Umhüllung über 90% liegt.
3. Isolator nach einem der Ansprüche 1 und 2, dadurch gewkennzeichnet, daß das Metalloxid aus der Gruppe ausgewählt wird, die von Wismuth-, Mangan-, Kobalt-, Chrom- und Antimonoxid gebildet wird.
EP84104677A 1983-04-29 1984-04-26 Verschmutzungsunempfindlicher elektrischer Isolator Expired EP0126984B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84104677T ATE28533T1 (de) 1983-04-29 1984-04-26 Verschmutzungsunempfindlicher elektrischer isolator.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8307100 1983-04-29
FR8307100A FR2545259B1 (fr) 1983-04-29 1983-04-29 Isolateur electrique presentant une insensibilite amelioree a la pollution

Publications (2)

Publication Number Publication Date
EP0126984A1 EP0126984A1 (de) 1984-12-05
EP0126984B1 true EP0126984B1 (de) 1987-07-22

Family

ID=9288375

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84104677A Expired EP0126984B1 (de) 1983-04-29 1984-04-26 Verschmutzungsunempfindlicher elektrischer Isolator

Country Status (14)

Country Link
US (1) US4563544A (de)
EP (1) EP0126984B1 (de)
JP (1) JPS59207515A (de)
AT (1) ATE28533T1 (de)
AU (1) AU564892B2 (de)
BR (1) BR8401989A (de)
CA (1) CA1250916A (de)
DE (1) DE3464983D1 (de)
ES (1) ES287936Y (de)
FR (1) FR2545259B1 (de)
MX (1) MX158055A (de)
NO (1) NO164389C (de)
NZ (1) NZ207972A (de)
ZA (1) ZA843160B (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4803100A (en) * 1987-10-21 1989-02-07 International Business Machines Corporation Suspension and use thereof
US4835341A (en) * 1988-03-08 1989-05-30 Maxwell Laboratories, Inc. Electrical insulator for use in plasma environment
US5548089A (en) * 1994-01-13 1996-08-20 Cooper Industries, Inc. Bushing for gas-insulated switchgear
GB0103255D0 (en) * 2001-02-09 2001-03-28 Tyco Electronics Raychem Gmbh Insulator arrangement
KR100910417B1 (ko) 2008-02-14 2009-08-04 삼광유리공업주식회사 내열 강화 유리 애자 및 그 제조방법
CA2800273C (en) * 2010-05-28 2017-10-03 Lapp Insulators Gmbh Composite insulator
FR3067164B1 (fr) 2017-06-02 2019-08-02 Sediver Sa Procede de traitement d'un composant en verre ou porcelaine a revetement protecteur super-hydrophobe

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB586064A (en) * 1945-02-20 1947-03-05 Taylor Tunnicliff And Company An improved electrically-conductive ceramic coating or composition
US2576723A (en) * 1946-10-11 1951-11-27 Bullers Ltd Electric insulator having potential drop controlling means
DE1003309B (de) * 1954-05-17 1957-02-28 Licentia Gmbh Hochspannungsisolator, insbesondere der Verschmutzung ausgesetzter Freiluftisolator
GB1112765A (en) * 1965-06-01 1968-05-08 Taylor Tunnicliff & Co Ltd Improvements in or relating to semi-conducting ceramic glaze compositions
GB1240854A (en) * 1968-09-27 1971-07-28 British Railways Board Improvements relating to high voltage electrical insulators
US3795499A (en) * 1969-10-11 1974-03-05 Ngk Insulators Ltd Method of producing semi-conducting glaze compositions
US3627905A (en) * 1969-12-08 1971-12-14 British Railways Board High-voltage electrical insulator having a predetermined surface conductance
DE2361204C3 (de) * 1973-12-06 1978-11-23 Siemens Ag, 1000 Berlin Und 8000 Muenchen Elektrische Hochspannungseinrichtung mit Isolierkörpern
US4031498A (en) * 1974-10-26 1977-06-21 Kabushiki Kaisha Meidensha Non-linear voltage-dependent resistor
CH601135A5 (de) * 1976-07-01 1978-06-30 Bbc Brown Boveri & Cie
DE2735484C2 (de) * 1977-08-05 1984-06-07 Siemens AG, 1000 Berlin und 8000 München Verfahren zur Herstellung von Dickfilm-Varistoren mit Zinkoxid als Hauptkomponente

Also Published As

Publication number Publication date
US4563544A (en) 1986-01-07
JPH0247808B2 (de) 1990-10-23
NZ207972A (en) 1986-07-11
NO164389B (no) 1990-06-18
EP0126984A1 (de) 1984-12-05
AU2744184A (en) 1984-11-01
AU564892B2 (en) 1987-08-27
CA1250916A (fr) 1989-03-07
JPS59207515A (ja) 1984-11-24
FR2545259A1 (fr) 1984-11-02
ES287936U (es) 1985-11-16
DE3464983D1 (en) 1987-08-27
BR8401989A (pt) 1984-12-04
ES287936Y (es) 1986-06-16
MX158055A (es) 1988-12-29
NO164389C (no) 1990-09-26
ZA843160B (en) 1985-07-31
NO841647L (no) 1984-10-30
FR2545259B1 (fr) 1985-12-27
ATE28533T1 (de) 1987-08-15

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