EP1467384B1 - Isolateur en forme de boucle - Google Patents

Isolateur en forme de boucle Download PDF

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Publication number
EP1467384B1
EP1467384B1 EP04006864A EP04006864A EP1467384B1 EP 1467384 B1 EP1467384 B1 EP 1467384B1 EP 04006864 A EP04006864 A EP 04006864A EP 04006864 A EP04006864 A EP 04006864A EP 1467384 B1 EP1467384 B1 EP 1467384B1
Authority
EP
European Patent Office
Prior art keywords
loop
insulator
component
insulator component
thimbles
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
EP04006864A
Other languages
German (de)
English (en)
Other versions
EP1467384A2 (fr
EP1467384A3 (fr
Inventor
Martin Hoffmann
Philippe Leray
Marten Rankers
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.)
Siemens AG
Original Assignee
Siemens AG
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=32864435&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1467384(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1467384A2 publication Critical patent/EP1467384A2/fr
Publication of EP1467384A3 publication Critical patent/EP1467384A3/fr
Application granted granted Critical
Publication of EP1467384B1 publication Critical patent/EP1467384B1/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
    • H01B17/02—Suspension insulators; Strain insulators
    • H01B17/12—Special features of strain insulators

Definitions

  • the invention relates to a loop insulator with a loop-shaped insulator component, which is connected to opposite terminal thimbles.
  • Such a loop insulator is for example from the patent US 5,725,952 and from the publication of Siemens AG with the order number A52813-W3001-A0001-02-00 B1 known.
  • the loop insulators SICAT 8WL3001 / 3002 described there are used to insulate the live conductor of electrical tracks from ground potential.
  • the loop-shaped insulator component consists of glass-fiber-reinforced plastic, namely of a self-contained glass fiber reinforced plastic strand. At opposite ends of this loop-shaped insulator component in each case a connection fitting is arranged, which is called Renkausche. These connection thimbles are often made of a copper-aluminum alloy.
  • the glass fibers of the insulator component which are impregnated with epoxy resin, are wound directly onto the connection thimbles and hardened there.
  • connection thimbles of the loop insulators and connection components held in the connection thimbles consist inter alia of different metals which have different electrochemical voltages. This can lead to electrochemical corrosion as a result of the humidity. In addition, a stress corrosion cracking, especially if brass connection thimbles are used, can not be ruled out.
  • connection thimbles always have circular openings in which the connection components are held.
  • thimble inserts made of copper-aluminum alloy, copper, brass and / or polyamide.
  • the loop-shaped isolator component surrounds the connection thimbles.
  • the loop-shaped insulator component often has a silicone sheath that could easily be damaged in the area of the connection thimbles. It can also come due to weather conditions disturbances.
  • the invention has for its object to provide a loop insulator, which is protected against mechanical damage. In particular, he should be able to withstand crosswinds and associated vibrations.
  • connection thimbles completely cover the insulator component in their area.
  • the connection thimbles are thus advantageously used not only for the connection of bolts, ropes and wires, but also for the mechanical protection of the insulator component.
  • a silicone sheath of the insulator component is protected.
  • the insulator component has a hydrophobic coating. This avoids that a film of water forms on the insulator component, which could be contaminated with dirt. It can therefore come to no impairment due to leakage currents on the insulator component.
  • the insulator component has a circular cross-section. This form allows a fast drainage of rainwater and thus a cleaning of the surface of the loop insulator by the rainwater.
  • the insulator component has drip edges. This further reduces the probability of the formation of a liquid or dirt layer. It can also come to creepage currents on the insulator component.
  • connection thimbles in their area cover the insulator component together with its hydrophobic coating.
  • the insulator component with its hydrophobic coating may have a circular cross-section.
  • the drawing shows a loop insulator with a loop-shaped insulator component 1, which is connected to opposite connecting thimbles 2, 3.
  • the connection thimbles 2, 3 consist of only a single non-electrochemically reacting and always stress crack-free metal or a combination of such a metal with a non-metallic material, such as plastic or ceramic. This can not lead to electrochemical corrosion or stress corrosion cracking.
  • Each Renkausche 2, 3 has an opening 4, 5, each with three corners.
  • the boundary surfaces of the openings 4, 5 are rounded, whereby a bolt or a wire or a rope or several wires or ropes better in one of the openings 4, 5 is inserted.
  • the insulator component 1 is bent parabolic in the region of the connection thimbles 2, 3 and the receiving surfaces of the connection thimbles 2, 3 are shaped accordingly. As a result, a better power transmission and thus a higher load capacity of the loop insulator is given at this compound than before.
  • connection thimbles 2, 3 for the insulator component 1 are in cross-section part of a rounded rectangle, whereby here is given a higher load capacity and reliability.
  • connection thimbles 2, 3 completely cover the isolator component 1 in their area and thus protect it against mechanical influences.
  • the insulator component 1 has a hydrophobic coating of suitable material.
  • the loop-shaped insulator component 1 has a circular cross-section and is provided with drip edges 6 in the form of disc-shaped rings. This avoids that a continuous water film can form on the insulator component 1.

Landscapes

  • Insulators (AREA)
  • Insulating Bodies (AREA)
  • Communication Cables (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Claims (4)

  1. Isolateur en forme de boucle ayant un élément ( 1 ) formant isolateur en forme de boucle, qui est relié à des cosses ( 2 et 3 ) de connexion opposées l'une à l'autre,
    caractérisé en ce que les cosses ( 2, 3 ) de connexion recouvrent complètement l'élément ( 1 ) formant isolateur.
  2. Isolateur en forme de boucle suivant la revendication 1,
    caractérisé en ce que
    l'élément ( 1 ) formant isolateur a un revêtement hydrophobe.
  3. Isolateur en forme de boucle suivant la revendication 1 ou 2,
    caractérisé en ce que
    l'élément ( 1 ) isolateur a une section transversale circulaire.
  4. Isolateur en formant de boucle suivant l'une des revendications 1 ou 3,
    caractérisé en ce que
    l'élément ( 1 ) formant isolateur a des rejets ( 6 ).
EP04006864A 2003-04-10 2004-03-22 Isolateur en forme de boucle Expired - Lifetime EP1467384B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10316556 2003-04-10
DE10316556 2003-04-10

Publications (3)

Publication Number Publication Date
EP1467384A2 EP1467384A2 (fr) 2004-10-13
EP1467384A3 EP1467384A3 (fr) 2005-01-12
EP1467384B1 true EP1467384B1 (fr) 2010-08-11

Family

ID=32864435

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04006864A Expired - Lifetime EP1467384B1 (fr) 2003-04-10 2004-03-22 Isolateur en forme de boucle

Country Status (4)

Country Link
EP (1) EP1467384B1 (fr)
AT (1) ATE477578T1 (fr)
DE (1) DE502004011499D1 (fr)
PL (1) PL366972A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1083372B (de) * 1957-12-13 1960-06-15 Columbia Products Company Verfahren zur Herstellung eines stabfoermigen Zugisolators
DE20219940U1 (de) * 2002-12-24 2003-03-06 Fahrleitungsbau GmbH, 45329 Essen Abspannisolator

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU673676B2 (en) * 1992-06-09 1996-11-21 Raychem Limited Insulators

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1083372B (de) * 1957-12-13 1960-06-15 Columbia Products Company Verfahren zur Herstellung eines stabfoermigen Zugisolators
DE20219940U1 (de) * 2002-12-24 2003-03-06 Fahrleitungsbau GmbH, 45329 Essen Abspannisolator

Also Published As

Publication number Publication date
PL366972A1 (en) 2004-10-18
DE502004011499D1 (de) 2010-09-23
EP1467384A2 (fr) 2004-10-13
EP1467384A3 (fr) 2005-01-12
ATE477578T1 (de) 2010-08-15

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