EP0933787A2 - Isolateur électrique sous forme de colonne - Google Patents

Isolateur électrique sous forme de colonne Download PDF

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Publication number
EP0933787A2
EP0933787A2 EP99810084A EP99810084A EP0933787A2 EP 0933787 A2 EP0933787 A2 EP 0933787A2 EP 99810084 A EP99810084 A EP 99810084A EP 99810084 A EP99810084 A EP 99810084A EP 0933787 A2 EP0933787 A2 EP 0933787A2
Authority
EP
European Patent Office
Prior art keywords
base
insulator
base body
insulator according
fasteners
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.)
Withdrawn
Application number
EP99810084A
Other languages
German (de)
English (en)
Other versions
EP0933787A3 (fr
Inventor
Stefan Gisy
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.)
Cellpack AG
Original Assignee
Cellpack 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
Application filed by Cellpack AG filed Critical Cellpack AG
Publication of EP0933787A2 publication Critical patent/EP0933787A2/fr
Publication of EP0933787A3 publication Critical patent/EP0933787A3/fr
Withdrawn legal-status Critical Current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
    • H01B17/14—Supporting insulators
    • H01B17/16—Fastening of insulators to support, to conductor, or to adjoining insulator

Definitions

  • the invention relates to a columnar Isolator according to the preamble of claim 1. Furthermore relates the invention a process for its preparation according to claim 11 and a use of the insulator according to claim 12.
  • columnar electrical insulators which has a hollow cylindrical base body or an insulating tube made of glass fiber reinforced plastic, in particular made of a synthetic resin. At least one-sided this tubular base body is also in one hollow cylindrical end part, usually made of cast aluminum, introduced. In the end part is the outer wall of the base body on the inner wall of the end part Adhesive attached. The end part is usually included provided with a flange so that it can be used as a base for fastening the isolator can serve at its location. Between the end parts, the base body is known Way with an insulating jacket with ribs, which extend the leakage path, e.g. with the body cast ribs made of silicone rubber or silicone rubber.
  • the base body is fastened by pushing it in in the sleeve-shaped base and gluing in the same has generally proven itself if the insulator mainly by pulling or pushing in its longitudinal direction is charged. A failure of the conventional adhesive attachment between the base body and the end part occur when the insulator has significant bending moments is subjected.
  • Switch rods for switch actuation are also known, which one on the plastic rod a metal sleeve with a continuous or with two bolts is attached. These poles are only on Loaded with pressure or tension.
  • the invention is based on the object to create an isolator of the type mentioned at the beginning, which does not have the disadvantage mentioned and in particular for absorbing forces generating bending moments is designed without damaging the Isolators is done.
  • the base is preferably also such designed such that it rests against the inside of the base body Has receiving part.
  • the invention is also intended to achieve the object an isolator of the type mentioned simply and inexpensively produce what with the features of claim 11 he follows.
  • a particularly preferred use of the insulator concerns its use as a mast according to Claim 12.
  • Figure 1 is a rough schematic representation a vertical section through the foot area of a columnar insulator shown in the prior art.
  • This has a base body 1, which is a hollow cylinder is designed and made of an electrically insulating glass fiber reinforced synthetic resin. With his At the end, this hollow cylinder is placed in a base part 2, which has a hollow cylindrical receiving part 3 in which the base body 1 is inserted, and a flange 4.
  • the base body 1 and the receiving part 3 are with each other along their contact surface glued.
  • the flange 4 is used to attach the insulator on a base area, not shown.
  • the other, End of the insulator, not shown can be from one the base part 2 identical or similar end part is formed be and provides attachment points for on the isolator attached items available.
  • the insulator Between the end parts is the insulator in a known manner with electrical non-conductive ribs 5, which e.g. cast on Ribs can be made of silicone rubber.
  • electrical non-conductive ribs 5 e.g. cast on Ribs can be made of silicone rubber.
  • the isolator is now not an improved Adhesive connection made, but it will be a Variety of bolts are used to connect the base part connect the body.
  • Figure 2 shows a section also in the vertical direction through part of the base 12 and part of the base body 11 of the insulator.
  • the base part 12 with its hollow cylindrical Receiving part 13 designed so that the Base body is placed over the receiving part 13, so that it is located within the base body 11.
  • a plurality of bolts 15, 16 are provided, which penetrate the base body 11 and in the receiving part end up.
  • the bolts are threadless Pins, each in a hole (through hole in the base body, blind hole in the receiving part) are, whereby the bore and pins are coordinated are that there is a fit of the pins that the Have the function of fastening pins.
  • FIG. 3 shows the development of the cylindrical region B of Figure 2 in a plane in which the two Rows can be seen. It is also preferred in each case the upper pin 15 is provided with a larger diameter than that lying further down to the flange 14 Pin 16.
  • the rows of pins or rows of holes can also be offset from one another, as can be seen in FIG. 3.
  • the Connection according to the invention is particularly advantageous.
  • the Base parts 12, which also in the embodiments according to the invention with or without a flange at both ends of the base body can be provided preferably made of metal, in particular aluminum; it other materials can also be used.
  • screws are used instead of the preferred pins are, each in a thread in the receiving part 13th intervene, if necessary also in a thread in the base body 11 and which have a screw head, the base body acted upon.
  • fasteners penetrating the base body used. It has surprisingly turned out to be shown that, in contrast to the previously used Adhesive connection, including the inclusion in the side Direction of forces through the isolator without it Damage is possible.
  • the use of more than 10 is particularly preferred Fasteners, especially from 20-50, in particular of 30-40 fasteners.
  • the fastener can be a pin diameter of 16 mm for the pins 15 and of 12 mm for the Pins 16 are given at a height of 150 mm of Area B and an inner diameter of the base body of 284 mm and an outer diameter of 312 mm.
  • FIG. 4 shows a further exemplary embodiment, in which the base part 22 is formed in two parts, with a first receiving part 23 which is integral with the flange 24 is formed, and a second receiving part 23 '.
  • the base body 21 comes between the parts 23 and 23 'and is by threaded bolts 25 and 26 imbued with their heads on the Support part 23 'and on part 23 in there Engage nuts 27, 28.
  • the base part shows also a part lying against the inside of the base body 21 23 'on.
  • at least some other than the fasteners shown be used e.g. can be part of the threaded bolt can be replaced by pins or rivets can be used instead of bolts or a combination of rivets and pins. In any case, one would be additional gluing of base body and base part possible, but is not preferred.
  • the base body can be used to manufacture the insulator be placed on the base part and there will be e.g. with a numerically controlled drill with several drilling spindles according to the large number of holes executed the embodiment shown.
  • the pins 15, 16 are driven in as fastening pins, e.g. with a rubber mallet or it will be Threaded bolts screwed or rivets set.
  • fastening pins e.g. with a rubber mallet or it will be Threaded bolts screwed or rivets set.
  • When driving in the pins in a blind hole must have a vent groove or hole may be provided.
  • the columnar insulator according to the invention allows applications that the previously known, glued column insulators. For example, use as a mast or cable carrier for high-voltage cables instead of the known ones Truss masts made of steel possible because the insulator able to withstand corresponding forces. He can do it one end with the flange 14 or 24 on a concrete foundation be attached and otherwise carries a conventional one High voltage cables.
  • the isolator according to the invention can also switch and / or transformers in Wear switchgear for high, medium or low voltage.

Landscapes

  • Insulators (AREA)
EP99810084A 1998-02-03 1999-02-02 Isolateur électrique sous forme de colonne Withdrawn EP0933787A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH25398 1998-02-03
CH25398 1998-02-03

Publications (2)

Publication Number Publication Date
EP0933787A2 true EP0933787A2 (fr) 1999-08-04
EP0933787A3 EP0933787A3 (fr) 2000-11-02

Family

ID=4182804

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99810084A Withdrawn EP0933787A3 (fr) 1998-02-03 1999-02-02 Isolateur électrique sous forme de colonne

Country Status (1)

Country Link
EP (1) EP0933787A3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0949638A3 (fr) * 1998-04-08 2000-11-15 ABB Research Ltd. Isolateur pour lignes électriques de transmission et de distribution, avec une résistance améliorée contre les tensions de flexion

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH379592A (de) * 1959-03-20 1964-07-15 Siemens Ag Anordnung an einem Isolator, insbesondere an einem Stützisolator aus glasfaserverstärktem Giessharz

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0949638A3 (fr) * 1998-04-08 2000-11-15 ABB Research Ltd. Isolateur pour lignes électriques de transmission et de distribution, avec une résistance améliorée contre les tensions de flexion
US6218626B1 (en) 1998-04-08 2001-04-17 Abb Research Ltd. Insulator for electric transmission and distribution lines, with improved resistance to flexural stresses

Also Published As

Publication number Publication date
EP0933787A3 (fr) 2000-11-02

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