EP0191084A1 - Support fixture for stranded conductors - Google Patents
Support fixture for stranded conductorsInfo
- Publication number
- EP0191084A1 EP0191084A1 EP19850904278 EP85904278A EP0191084A1 EP 0191084 A1 EP0191084 A1 EP 0191084A1 EP 19850904278 EP19850904278 EP 19850904278 EP 85904278 A EP85904278 A EP 85904278A EP 0191084 A1 EP0191084 A1 EP 0191084A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support
- fastening
- fitting according
- screw
- head cap
- 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- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/05—Suspension arrangements or devices for electric cables or lines
- H02G7/053—Suspension clamps and clips for electric overhead lines not suspended to a supporting wire
-
- 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
- H01B17/20—Pin insulators
- H01B17/22—Fastening of conductors to insulator
Definitions
- the invention relates to a support fitting for line cables, with the aid of a mechanical connection between the line cable of an electrical overhead line and a e.g. support insulator mounted on a mast - even under voltage.
- wire binding with ironing i.e. the wrapping made on the spot with aluminum wire.
- wire binding with ironing is by no means satisfactory, with regard to the support insulator, the arrangement is asymmetrical and stiff. The quality depends on the specialist knowledge and care of the fitter making the connection, the effort in living work is significant.
- a more contemporary solution is the method in which the cable is attached to the support insulator with a fitting.
- the line cables are fastened to the vibrating support with screws.
- the attachment of cable ropes or the replacement of the defective support insulator can only be carried out in a de-energized state. Switching off (relaxation) of the line for the purpose of insulator replacement results in a loss of production, or if a voltage failure is not permissible, a reserve line must be provided.
- a Tr ⁇ garmatur is also known in which the cable is attached to the fitting with a releasable spring clip.
- the disadvantage of this solution is that the tension force changes significantly when fastening cable ropes with different diameters.
- our objective was to develop a support armature that was easy to implement, which would allow a highly reliable connection with a long service life between cables of different cross-sections and the support insulator and could also be solved under voltage.
- the releasability of the mechanical connection is realized in such a way that the cable is enclosed in the oscillating support connected to the support insulator with an articulated fastening element which is secured against opening with a fastening screw.
- the design of the fastening element and the fastening screw ensures that the articulated fastening element can also be lifted out of the Schwingtriger under tension
- the invention relates to a support fitting for cable ropes, which has a vibrating support arranged on a support element and receiving the cable rope and a fastening member securing the cable to the vibration support.
- the fastening element contains an articulated fastening element which is connected on one side to the oscillating support with a hinge part which permits rotation of the fastening element along a circular arc, and a fastening screw which tensions the fastening element against the oscillating support.
- the fastening screw can be loosened with a tool which enables the work to be carried out under tension, as a result of which the fastening element is tilted along the circular arc and the line cable can be lifted out of the oscillating support.
- the fastening element on its side opposite the hinge part has a projection provided with a threaded bore receiving the fastening screw, while the oscillating support is provided with a fork enclosing the fastening screw against which the screw head of the fastening screw strikes.
- Lifting screw can be lifted out of the fork by tilting it with the fastening element along a circular arc, so that the guide rope can be lifted out of the swing arm immediately. It is advantageous if the screw head of the fastening screw is provided with an eyelet for twisting.
- the cradle of the vibrating support which receives the line cable is one designed convex-arched surface. In this way, the corresponding resting of the cable is secured.
- the components of the support fitting according to the invention are made of aluminum casting, with the exception of the fastening screw and the pivot pin of the hinge part, which can be made of bronze.
- the support element of the support fitting according to the invention can e.g. be designed with a cylindrical head cap that can be glued to the head of the support insulator.
- the head cap and the support element form separate components, which e.g. are fastened with a screw connection.
- the support insulators can be provided with the head cap at the factory.
- the head cap can be glued to the support insulator or the fastening can be carried out in some other way using an operating technology and can be carried out more reliably and at a lower cost.
- a possible design that can already be used with existing support insulators can be advantageous in which the head cap consists of two parts that can be clamped onto the support insulator with a threaded clamping element.
- the head cap and the carrying element can be a monolithic unit, advantageously e.g. be designed from a cast aluminum.
- the support fitting according to the invention can each
- Position of the support insulator are designed accordingly in numerous ways, always so that the vibrating support is positioned in the approximately horizontal plane, which is achieved with an appropriate design of the support element. If the support insulator now has a vertical axis, the support element must be designed in such a way that it positions the oscillating support in an approximately vertical plane in relation to the vertical axis. Should the support insulator assume an inclined position, for example at an angle of 30 with respect to the horizontal, the support element must be in relation to the oscillating support adjust the axis of symmetry of the head cap adjoining the supporting insulator in a correspondingly inclined plane.
- an extremely economical support insulator arrangement can be designed using two embodiments of the support fitting according to the invention on the masts of the medium-voltage networks.
- the support fitting mounted on an intact support insulator can be used repeatedly;
- the support fitting according to the invention transmits no additional load in the direction of the mast;
- FIGS. 1 and 2 show two views of a possible embodiment of the mounting bracket according to the invention
- FIG. 3 shows another possible embodiment of the support arm in a view similar to that of FIG. 2,
- Figure 4 shows the head cap of a further embodiment of the support fitting, shown schematically in section.
- the support arm shown in FIGS. 1 and 2 consists of a head cap 12, a support element 24 located thereon, a vibrating support 1 movably mounted on the support element 24, and a fastening element 2 and a fastening screw 5 which connect the line 3 to the line Press on vibrating support 1.
- the head cap 12 has a cylindri cal wall with an axis of symmetry 30 a bottom part 25.
- the head cap 12 is attached by gluing to the protruding tragi solator head (not shown here).
- the support element 24 forms a single piece with the bottom part 25, the support element 24 has two holding forks 13A and 1 38, in which the two rounded wedge-shaped bolts 4A and 48 of the oscillating support 1 a are arranged.
- the bolts 4A and 4B are with locking elements 1 1A and. 11 B included, the latter being fastened with two screws each, from which only the screws 1 9A, 1 9B and 1 9C can be seen.
- a longitudinal cradle 14 is configured in the oscillating support 1 and receives the line rope 3.
- the lower surface of the cradle 14 is convex, as can be seen from the discontinuous line in FIG. 1.
- the swing support 1 has on one side of the cradle 14 a hinge part 18 provided with a pivot pin 10, while an excellent fork 7 is present on the other side.
- the fastening element 2 is provided with a projection 17, in which a threaded bore receiving the fastening screw 5 can be found.
- the threaded end of the fastening screw 5 for example made of bronze, has a shoulder 9, which is assigned the task of protecting the fastening screw 5 during the assembly against complete unscrewing and preventing it from falling out of the projection 17.
- a screw head 8 fastened with a through bolt ⁇ and an eyelet 21 projecting therefrom.
- the eyelet 21 allows the fastening screw 5 to be rotated during assembly with an insulated rod.
- the screwed-in fastening screw 5 is located between the legs of the fork 7, the screw head 8 is pressed against the fork 7, so the groove 15 of the fastening element 2 braces the cable 3 to the cradle 14.
- the work sg ng the removal of the live line ungsseil 3 from the Tragarmat ur, or. the attachment in the support bracket is as follows.
- the fastening screw 5 of the closed, articulated fastening element 2 is unscrewed with a rod that enables the work to be carried out even under tension, to the stop of the limiting shoulder 9.
- the fastening screw 5 has been lifted out of the fork 17 of the oscillating support 1, the articulated fastening element 2 with the fastening screw 5 tilts together around the pivot pin 10.
- the line cable 3 can be used accordingly isolated tool from the cradle 14 and eg the support insulator can be replaced.
- the articulated fastening element 2, which is in the open state, and the loosened fastening screw 5 are turned together, with the aid of the rod inserted into the eyelet 21, and also usable under tension. Subsequently, the screw 5 lying between the legs of the fork 7 is screwed completely with the rod inserted into the eyelet 21, which enables work to be carried out even under tension, and is tightened with a force at which the stem of the rod treated with silicone is in the hand of the Fitter slipped.
- the embodiment according to FIG. 3 differs from that according to FIG. 2 in that the head cap 12 designed in the interest of better bonding with ribbing 31 and the support element 24 consist of two separate pieces, for example made of aluminum castings which are fastened to one another with screws which only the screw 29 is visible.
- a circular base plate 26 of the support element 24 lies on the bottom part 25 of the head cap 12.
- a triangular, on the base plate 2 ⁇ perpendicular support plate 27 is followed by a holding plate 28, the. the latter carries the holding forks 13A and 13B. It can be seen that, due to the design of the support element 24, the vibration exciter 1 lies in a plane which inclines at an angle of approximately 30 ° in relation to the axis of symmetry 30 of the head cap 12.
- the plane of the vibrating support 1 In the assembled state, the plane of the vibrating support 1 must run approximately horizontally, in this way the longitudinal axis of the support insulator, not shown here, which coincides with the axis of symmetry 30, forms an angle of approximately 30 with the horizontal.
- a shoulder 32A and 32B is designed on the bolts 4A and AB because of a better axial limitation, furthermore the screw head 8 and the eyelet 21 are cast onto the bronze fastening screw 5.
- the head cap 12 consists of two parts 12A and 12B, which are pressed onto the head of a traditional porcelain support insulator 20 with the aid of a clamping element 22.
- the inner curved flanges 23A and 238 of the parts 12A and 12B adapt to the circumferential groove in the plane perpendicular to the axis of symmetry 30.
- a double screw forms the clamping element 22, the two screws 22A and 22B counter to one another set thread directions and the head in between. 22C.
- those in parts 12A. 12A and 12B configured threaded holes 33A and 33B equally with opposite thread direction, for example, the threaded hole 33A is left-handed, while the threaded hole 33B is right-handed.
- the support element 24 is formed by the upper part of the parts 12A and 12B.
- the holding fork 13A is configured on the part 12A and the holding fork 13B is configured on the part 12B.
- a head cap of any format can be used, which can be connected to the support insulator, or there is the possibility of connecting the support element without a head cap directly to the support insulator.
- the support element can be designed by the support insulator, which is made of plastic, for example. In this case, the head cap is unnecessary, and the vibrating support, for example made of aluminum uminiumg ⁇ ß piece is stored in the plastic support element.
- the arrangement of the fastening screw 5 can also differ in that the threaded bore is worked out in the projection corresponding to the fork 7 and the projection 17 is designed as a fork. In this case, the fastening screw 5 and the fastening element 2 must be tipped over with the insulated tool, each with a separate hand movement.
Landscapes
- Insulators (AREA)
Abstract
Une armature de support pour conducteurs câblés comprend un support oscillant (1) agencé sur un élément porteur (24) et qui reçoit le conducteur câblé (3), et un dispositif de fixation pour fixer le conducteur câblé (3) au support oscillant (1). Le dispositif de fixation comprend un élément d'attache (2) connecté d'un côté à une charnière du support oscillant (1), ce qui permet à l'élément oscillant de se déplacer dans un arc de cercle, et un écrou de fixation (5) qui tend l'élément d'attache (2) contre le support oscillant (1). L'élément porteur (24) est avantageusement pourvu d'un chapeau (12) pour le raccorder à l'isolateur de base.A support frame for wired conductors comprises an oscillating support (1) arranged on a support element (24) and which receives the wired conductor (3), and a fixing device for fixing the wired conductor (3) to the oscillating support (1 ). The fixing device comprises a fastening element (2) connected on one side to a hinge of the oscillating support (1), which allows the oscillating element to move in an arc of a circle, and a fixing nut (5) which tends the fastening element (2) against the oscillating support (1). The carrier element (24) is advantageously provided with a cap (12) to connect it to the basic insulator.
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU321484A HU189427B (en) | 1984-08-28 | 1984-08-28 | Supporting structure for wires |
HU321484 | 1984-08-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0191084A1 true EP0191084A1 (en) | 1986-08-20 |
Family
ID=10963140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19850904278 Withdrawn EP0191084A1 (en) | 1984-08-28 | 1985-08-28 | Support fixture for stranded conductors |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0191084A1 (en) |
HU (1) | HU189427B (en) |
WO (1) | WO1986001650A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100821827B1 (en) * | 2007-03-14 | 2008-04-14 | 김현철 | Electric power cable fixing apparatus for an insulator |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2040671A5 (en) * | 1969-04-08 | 1971-01-22 | Merlin Gerin | |
FR2040672A5 (en) * | 1969-04-08 | 1971-01-22 | Merlin Gerin | |
US3562875A (en) * | 1969-06-16 | 1971-02-16 | L E Lindsey | Dead end clamp |
FR2056097A5 (en) * | 1969-07-10 | 1971-05-14 | Pirelli | |
FI48885C (en) * | 1973-01-04 | 1975-01-10 | Miettinen E K Y | Hang line holder |
SE395181C (en) * | 1976-09-27 | 1977-12-27 | Ericsson Telefon Ab L M | DRAWING AND SUSPENSION DEVICES FOR HANGING CABLE, BERLINA OR DYLIKT |
GB1587233A (en) * | 1978-05-30 | 1981-04-01 | Brush Power Equip Ltd | Clamp for conductor of an overhead electricity transmission line |
FR2478246A1 (en) * | 1980-03-13 | 1981-09-18 | Sicame Sa | Snap closing link for insulated overhead cables - uses pivoted moulded plastics link to allow snap closing round eye fixed to pole, to support cable |
SE456959B (en) * | 1982-06-21 | 1988-11-14 | John Gunnar Moberg | DON BE SUSPENDED FOR CABLES OR SIMILAR IN A MULTIPLE-SIDE BETWEEN Separate Elements |
-
1984
- 1984-08-28 HU HU321484A patent/HU189427B/en unknown
-
1985
- 1985-08-28 WO PCT/HU1985/000050 patent/WO1986001650A1/en unknown
- 1985-08-28 EP EP19850904278 patent/EP0191084A1/en not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO8601650A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1986001650A1 (en) | 1986-03-13 |
HU189427B (en) | 1986-07-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT DE FR |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19860729 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: FEHER, GYOERGY Inventor name: GUENTNER, OTTO Inventor name: TOTH, TIBOR Inventor name: FRIEDRICH, JANOS Inventor name: VARGA, LASZLO |