KR20090060028A - Connecting apparatus for electric cable - Google Patents

Abstract

A connection apparatus for a power cable is provided to prevent disconnection or short-circuit of a power cable by uniformly maintaining tension of the power cable. A first connection unit(10) and a second connection unit(20) are fixed to an electric pole. The second connection unit is connected to the first connection unit. An interval control part(30) controls an interval between the first connection unit and the second connection unit. A light arm(40) includes a first section steel(51), a second section steel(61), and a coupling member. The first section steel has U shape. The first section steel is coupled in an outer circumference of the first connection unit. A plurality of first insulator installation holes and a plurality of first coupling holes are formed in the first section steel. The second section steel is slidably coupled according to an inner circumference or an outer circumference of the first section steel. A plurality of second insulator installation holes and a plurality of second coupling holes are formed in the second section steel. The coupling member couples the first section steel with the second section steel.

Description

Cable connection device for transmission and distribution {Connecting apparatus for electric cable}

The present invention relates to a wire cable connection device for power transmission and distribution, and more particularly, to secure a light support structure installed in poles and spires, and to selectively install the number of installation holes of the suspension insulator for connecting the wire cable. The present invention relates to an adjustable wire cable connection device for transmission and distribution.

In general, the large power generated by the power plant is transmitted to each substation with high voltage power through transmission lines such as transmission towers, and then, the substation transforms the transmitted power and is supplied to each region by wire cables for use by each customer. .

The electric power supply to general customers is supplied through electric poles. In this case, the electric wire cables in each electric pole are single-phase, 2-wire and 3-wire depending on the distribution line. It is as already known. Here, the high voltage electricity is supplied in three-phase three-wire or four-phase four-wire type, so three or four cables are connected, and these should be installed in a tight tension at all times to prevent a short circuit accident.

Therefore, the poles are installed at regular intervals, and a support, that is, a light arm, is installed at the top of the poles so that the high voltage cables are wired in parallel and in tension at intervals where the short circuits are not short-circuited. It is configured in the shape and is fixed to the upper part of the pole by the band clamp.

In the conventional construction of the wire cable connection, wire cables are connected through the suspension insulators on both sides of the light beam which are rolled up on both sides of the top of the pole in the orthogonal direction with respect to the wire direction of the wire cables, and the jumper wires are connected between both suspension insulators. , The construction has been made to support the jumper line upward or downward through the support insulator (Line post: pin insulator) fixed to the upper surface of both sides of the light arm.

Here, the light arm that enables the construction of wire cable by fastening several suspension insulators and supporting insulators to Jeonju is located in Jeonju with a separate “U” shaped fastener that can secure the connection to Jeonju. In this state, by connecting the light arm to the "U" shaped fasteners were made by fastening each other with nuts. However, such a light braking connection structure has an external force acting horizontally on the light braking, while the light braking forms a solid binding force by the fastener, but does not have any binding force on the external force acting perpendicularly to the light braking. Because of this, there was a structural defect that did not achieve a stable installation.

In addition, wire cables have various deflections between electric poles and electric poles depending on the thickness of power lines. However, since the height between light and small braids is fixed uniformly, when wire cables of different thicknesses are connected vertically to light braids, There was a problem that a short circuit accident occurs due to the electric wire and the cable hit each other.

In addition, since the number of the mounting holes that can be combined with the light insulator can not be selectively adjusted, the number of the insulators less than the number of the mounting holes can be adjusted. There was a risk of birds nesting or colliding.

And as described above, it is preferable to maintain the tension of the electric wire connecting the pole and the pole more than a certain level, the conventional light arm or connecting device is the tension of the wire due to the sag caused by the weight of the wire cable, the temperature rises There was a risk of short circuit by.

The present invention is to solve the above problems, a pair of connecting units having a rigid coupling structure against the external force in the horizontal direction and vertical direction on the top of the pole, and the installation of the mounting holes for the installation of the suspension insulator It is an object of the present invention to provide a wire cable connection device for transmission and distribution, in which the number can be selectively adjusted and the tension of the supported wire cable can be maintained at a constant level.

Transmission and distribution cable connection device according to the present invention for achieving the above object is a first connection unit fastened to the upper portion of the pole installed spaced apart to interconnect the wire cable, and the first connection unit to be located below the first connection unit The second connection unit which is connected to the connection unit and fixed to the pole, the gap adjusting unit for adjusting the separation interval of the first and second connection unit, coupled to the outer peripheral surface of the first and second connection unit, the suspension insulator is installed It is provided with a light braking, but the light braking is fixed to the engaging jaw protruding outward on the outer peripheral surface of the first, second connection unit, has a 'c' shape, parallel to the outer peripheral surface of the first, second connection unit A plurality of first insulator mounting holes that can be coupled to the suspension insulator are formed at predetermined intervals on the side surface, and the first section steel and the first section steel in which the first fastening holes are spaced to correspond to the spacing of the insulator mounting holes on the upper surface. Of The second insulator installation hole and the first insulator and the second insulator installation hole having the same spacing so as to be connected to the first insulator installation hole and the first fastening hole when coupled to the first section steel slidingly coupled along the main surface or the inner circumferential surface And a fastening member coupled through the first and second fastening holes selected from the plurality of first and second fastening holes so as to couple the second and second and second and second fastening steels respectively provided with the second fastening holes.

The coupling jaw is provided on the outer peripheral surfaces of the first and second connection units facing each other, respectively, and includes a first protrusion protruding a predetermined length from the outer peripheral surfaces of the first and second connection units, and a first protrusion and a first protrusion. A second protrusion having a relatively longer protruding length than the portion, and a third protrusion connected to the second protrusion and protruding the same length as the first protrusion, and a fastening hole is formed on an upper surface of the second protrusion. The upper surface of the first section steel is provided with a sliding hole extending along the protruding direction of the coupling jaw, the first section steel and the coupling jaw is a fastening member that is coupled through the sliding hole and the fastening hole, and the first section steel The first section steel is guided to the sliding hole and coupled to the sliding hole by an elastic member which interconnects the inner circumferential surface of the first and third protrusions to elastically bias the first section steel to the circumferential side. It is preferable.

The first connection unit has a predetermined height and has an inner diameter relatively larger than the outer diameter of the pole, the first body having an octagonal tube shape, and when the first body is installed on the pole, the first body to be supported on the top surface of the pole. The upper support portion is installed to cross the upper opening of the cross-shaped, screwed through the side of the first body, the rubber pad is attached to one end in contact with the outer peripheral surface of the pole of the first body, the first body The other end is located on the outside of the hexagonal head is provided with a first pressing bolt, the second connection unit is octagonal tube shape surrounding the outer circumference of the pole and screwed through the side of the second body, A rubber pad is attached to one end of the second body in contact with the outer circumferential surface of the pole, and the other end of the second body is provided with a second pressure bolt having a hexagonal head. The first and second connecting parts and the first and second connecting parts are formed on the outer circumferential surface of the first and second main bodies so as to have a screw hole extending in the vertical direction. It is preferable to have a width adjusting bolt having a first portion screwed to the connecting portion and a screw thread forming direction of the second connecting portion screwed to the second connecting portion mutually opposite.

Transmission and distribution wire cable connection device according to the present invention can stabilize the installation structure of the light insulator coupled to the suspension insulator for the connection of the wire cable, by selectively adjusting the number of the installation holes of the suspension insulator formed in the light insulator Unnecessary protruding parts from the pole can be reduced to prevent birds from colliding, minimizing the waste of manpower and cost to replace the light weight when the suspension insulator is expanded.

In addition, it is possible to prevent the short-circuit, short-circuit accident, etc. due to the sagging of the wire cable by maintaining the proper tension of the wire cable.

Hereinafter, with reference to the accompanying drawings, it will be described in detail an embodiment of a wire cable connection device for transmission and distribution according to the present invention.

1 is a perspective view showing a preferred embodiment of a wire cable connection device 100 for transmission and distribution according to the present invention, Figure 2 is an exploded perspective view of this embodiment.

1 and 2, the transmission and distribution wire cable connection device 100 is a first connection unit 10 is fastened to the upper portion of the pole installed spaced apart to interconnect the wire cable, and the first connection unit ( 10 is connected to the first connection unit 10 to be positioned below the second and the second connection unit 20 is fixed to the pole and the interval adjustment for adjusting the separation interval of the first, second connection units (10, 20) It is coupled to the portion 30, the outer peripheral surface of the first and second connection units (10, 20), and has a light braid 40, the suspension insulator 110 is installed.

The first connection unit 10 is to ensure that the pole and the light arm 40 is firmly connected, the first main body 11 in the form of an octagonal tube, the upper support 13 provided on the upper side of the first main body 11 And a first pressing bolt 14 for fixing the first body 11 to the electric pole.

The first body 11 has an inner diameter larger than the outer diameter of the pole and surrounds the pole, and is open downward to allow the top of the pole to be introduced through the lower surface. In addition, four through holes 12 penetrating the outer surface and the inner surface are formed on the side of the first body 11, the through holes 12 are for fastening the first pressure bolt 14 to be described later, the inner peripheral surface The thread is formed in the.

The upper support part 13 is installed on the upper surface of the first main body 11 and when the first main body 11 is engaged with the pole, the upper end surface of the pole is in contact with the lower surface of the upper support part 13 so that the first main body 11 ) Is prevented from descending downwards. Although not shown, a cushioning member may be further installed on the bottom surface of the upper support part 13 to prevent breakage in contact with the top surface of the pole.

The first pressing bolt 14 is for fixing the first body 11 to the pole along with the upper support 13, the first body 11 of the first body 11 through the through hole 12 of the first body 11. It is inserted from the outside to the inside. The first pressurizing bolt 14 extends from the inside of the first body 11 to the outside through the through hole 12 and has a threaded screw bar 16 formed on the outer circumferential surface thereof to be screwed to the through hole 12. And a rubber pad 15 in contact with the outer circumferential surface of the pole at one end of the screw bar 16 positioned inside the first body 11, and a screw bar 16 extending outward of the first body 11. Hexagonal head 17 formed at the other end of the. Hexagon head 17 is to rotate the screw bar 16 in one direction or another direction using a tool such as a spanner. In addition, the rubber pad 15 rotates the screw bar 16 so that when the first pressure bolt 14 moves to the electric pole side, the first body 11 presses the electric pole by a predetermined pressure or more, thereby causing the first body 11 to become electric pole. ) Is fixed, the cushioning material with a cushion to prevent breakage of the pole during the pressurization of the first pressure bolt (14).

The second connection unit 20 includes a second main body 21 and a second pressing bolt 22 fixing the second main body 21 to the electric pole.

Similar to the first main body 11, the second main body 21 has an octagonal tube shape and has the same size as the first main body 11. However, since the second main body 21 is positioned below the first main body 11 and must be moved up and down along the electric pole, both the upper and lower surfaces of the second main body 21 are opened. Since the second pressure bolt 22 has the same structure as the first pressure bolt 14, a detailed description thereof will be omitted.

The gap adjusting unit 30 is for adjusting the separation interval of the first and second connection units 10 and 20, and the first and second connection parts respectively formed on the outer circumferential surfaces of the first and second main bodies 11 and 21. (31,32) and the width adjusting bolt 33 for interconnecting the first and second connecting portions (31,32).

The first connecting portion 31 is installed to extend in the vertical direction on the outer circumferential surface of the two surfaces facing each other of the first body 11, the hollow is formed in the inner circumferential surface and penetrates the upper and lower surfaces.

The second connecting portion 32 is provided on the outer circumferential surface of the second body 21 so as to be positioned below the first connecting portion 31, and like the first connecting portion 31, the second connecting portion 32 penetrates the upper and lower surfaces thereof and has a thread formed on the inner circumferential surface thereof. The hollow is provided.

The width adjusting bolt 33 connects the first and second connecting portions 31 and 32 which are parallel to each other in the vertical direction, respectively, and the first portion 34 screwed to the hollow of the first connecting portion 31 and the second connecting portion. A second portion 35 that is screwed into the hollow of 32. The first and second parts 34 and 35 have threads formed on the outer circumferential surface of the first and second parts 34 and 35 so as to be screwed to the first and second connecting parts 31 and 32. Accordingly, when the width adjustment bolt 33 is rotated in one direction, the separation distance between the first and second main bodies 11 and 21 is closer, and when the width adjustment bolt 33 is rotated in the other direction, the separation distance is farther.

A handle 36 is formed at a connection point between the first portion 34 and the second portion 35 to grip the hand and to rotate the width adjusting bolt 33. Unlike the present embodiment, a tool having a hexagonal column corresponding to the shape of the tool at a connection point of the first part 34 and the second part 35 so that the width adjusting bolt 33 can be rotated using a tool such as a spanner. The fastening member 64 may be provided.

Light arm 40 is to be coupled to the suspension insulator 110 for connecting the wire cable, will be described in more detail with reference to FIGS. 3 to 5 shows the light wrist 40 coupled to the first connection unit 10 but the light arm 40 coupled to the second connection unit 20 is also the same. The light arm 40 having a structure and coupled to the first connection unit 10 described below with reference to the drawings is equally applicable to the second connection unit 20.

3 to 5, the light arm 40 of the present embodiment includes a coupling jaw 41 protruding outward from an outer circumferential surface of the first body 11 and a first section steel fixed to the coupling jaw 41. 51 and an elastic member 66 for elastically biasing the second shaped steel 61 and the first shaped steel 51 to be slidably coupled to the first shaped steel 51.

The engaging jaw 41 is formed to protrude outward from the outer circumferential surface of the first body 11. The first and third protruding portions 42 and 44 having the same protruding length and the first and third protruding portions 42, The second projection 43 is longer than the projections 44 between them. The upper surface of the second protruding portion 43 is formed with a fastening hole 45 through which the fastening member 47 can be screwed. The front surfaces of the first and third protruding portions 42 and 44 will be described later. The ring member 46 to which the elastic member 66 may be fastened is provided one by one.

The coupling jaw 41 may be formed integrally with the first body 11 as in the present embodiment, but alternatively, the coupling jaw 41 may be detachably coupled.

The first shaped steel 51 is supported by the coupling jaw 41, and has a 'c' shape, and one side surface exposed to the circumference side is open. The upper surface of the center fixed to the coupling jaw 41 is formed with a sliding hole 52 extending in parallel with the protrusion direction of the coupling jaw 41, the suspension insulator 110 can be inserted into both sides of the front surface The first insulator mounting hole 53 is formed. The first insulator mounting hole 53 is preferably formed at a point sufficiently separated from the pole to prevent the jumper wire from being interfered by the pole when the jumper wire is installed.

In addition, first and second fastening holes 54 for fastening with the second shape steel 61, which will be described later, are provided at both upper and lower surfaces of the first shape steel 51, and the first fastening hole 54 is the first insulator mounting hole. The plurality is formed to be spaced apart by the same distance as the 53.

The second shaped steel 61 is slidably coupled along the inner circumferential surface of the first shaped steel 51 on both sides of the first shaped steel 51, and the second insulator mounting hole 62 is provided on the front and upper and lower surfaces thereof. The second fastening hole 63 is formed.

The first section steel 51 and the second section steel 61 are fastened by the fastening member 64. The second section steel 61 moves along the inner circumferential surface of the first section steel 51 to form the second fastening hole 63. When positioned at a point in communication with a selected one of the plurality of first fastening holes 54 formed in the first shaped steel 51, the first and second fastening holes 54, 63 using the fastening member 64; After passing through them to extend downward, it is fixed using a nut (65). When the second fastening hole 63 is engaged with the first fastening hole 54 formed at the innermost side of the first shaped steel 51 among the first fastening holes 54, the second shaped steel 61 is the first shaped steel 51. Since both of the inlet state 110 is inserted into the inside of the can be installed in the two first insulator installation holes 53 formed in the first section steel 51, the second fastening hole of the second section steel 61 All of the 63 are located behind the first fastening hole 54.

In order to increase the number of installation of the suspension insulator 110, the second section steel 61 may be pulled out of the first section steel 51, and the second fastening hole 63 may be the first fastening holes 54. After communicating with the first fastening hole 54 in the center, inserting the fastening member 64 exposes the second car installation hole of the second steel (61) to the outside of the first steel (51), so Three suspension insulators 110 may be installed on one side of the gold 40. If the second fastening hole 63 is fastened by communicating with the outermost first fastening hole 54 by sliding the second shape steel 61, two second insulator mounting holes formed in the second shape steel 61 ( Since 62) are all exposed to the outside, four suspension insulators 110 may be installed on one side of the light arm 40. Therefore, if the second section steel 61 coupled to both sides of the first section 51 is properly adjusted, a total of eight suspension insulators 110 can be provided.

In addition, the first shaped steel 51 is coupled to the coupling jaw 41 to be retractable. The fastening member 47 is inserted into the fastening hole 45 of the sliding hole 52 and the second protruding portion 43 of the first shaped steel 51. Since the outer diameter of the head fastening member 47 is larger than the diameter of the fastening hole 45 and the width of the sliding hole 52, the first shape steel 51 is prevented from being separated from the coupling jaw 41. . In addition, one end of the elastic member 66 is fixed to the front of the first, third protrusions 42 and 44, and the other end is fixedly coupled to the inner surface of the first steel (51), the elastic force to the first steel (51) To provide.

After the suspension insulator 110 is installed and the wire cable is connected thereto, when the wire cable is stretched or the tension cannot be maintained due to the external force, the elastic member 66 may be formed of the first steel 51. Pull it to the pole side to allow the cable to maintain a certain level of tension. In this way, a short circuit or short circuit caused by sagging of the electric wire cable can be prevented.

Installation process of the wire cable connection device 100 according to the present invention is as follows.

First, the first and second connection units 10 and 20 are connected from the ground. The width adjusting bolts 33 are screwed to the first and second connection parts 31 and 32, and then the width adjusting bolts have a desired spacing interval. Rotate (33) to adjust the width. The fastening bolt is fastened to the first and second main bodies 11 and 21 so that a predetermined length is drawn therein, and then the first section steel 51 is coupled to the engaging jaw 41. Both ends of the elastic member 66 are fixed to the inner side of the coupling jaw 41 and the first shaped steel 51, respectively, and then the fastening member 47 is inserted into the sliding hole 52 and the fastening hole 45.

According to the number of suspension insulators 110 to be installed, the number of second insulator installation holes 62 exposed by drawing and drawing the second section steel 61 into the first section steel 51 is fixed and fixed to the upper part of the pole. do.

When the upper support portion 13 of the first connection unit contacts the upper surface of the pole, the first and second connection units 10 and 20 are fixed to the pole by the first and second pressure bolts 14 and 22. Installation of the wire cable connector for distribution is completed.

Thereafter, the suspension insulator 110 is installed on the light arm 40, and the jumper wire is extended to complete the connection of the wire cable.

1 is a perspective view showing an installation state of a wire cable connection device for transmission and distribution according to the present invention,

2 is an exploded perspective view of FIG. 1;

3 is an exploded perspective view of the light wrist of FIG.

4 is a plan view showing a state of repulsion of the light wrist by the elastic member,

5 is a plan view showing a sliding state of the first and second beams of light brazing.

<Explanation of symbols for the main parts of the drawings>

100; Wire cable connection device for transmission and distribution

10; First connecting unit 11; First body 13; Upper support 14; 1st pressure bolt

20; Second connecting unit 21; Second body 22; 2nd pressure bolt

30; Spacing control unit 31; First connecting portion 32; Second connecting portion 33; Width adjusting bolt

40; Light pay 41; Engaging jaw

51; First shaped steel 61; Second section steel

Claims (3)

A first connection unit fastened to an upper portion of the poles spaced apart from each other to connect the wire cables; A second connection unit connected to the first connection unit and fixed to the electric pole so as to be positioned below the first connection unit; A spacing controller for controlling spacing of the first and second connection units; It is coupled to the outer circumferential surface of the first, second connection unit, the light inlet is installed suspension suspension; The light arm is fixed to the coupling projection protruding outward on the outer peripheral surface of the first, second connection unit, has a 'c' shape, the suspension insulator on one side parallel to the outer peripheral surface of the first, second connection unit A plurality of first insulator mounting holes that may be coupled to each other are formed at predetermined intervals, and a first fastening hole is formed on an upper surface of the first insulator to correspond to a distance between the first insulator mounting holes; Slidingly coupled along the outer circumferential surface or the inner circumferential surface of the first shaped steel, the same spacing so as to be connected to the first insulator installation hole and the first fastening hole when coupled to the first shaped steel when sliding toward the coupling jaw A second section steel provided with a second insulator mounting hole and a second fastening hole respectively having And a fastening member coupled to the first and second fastening holes through the first and second fastening holes selected from the plurality of first and second fastening holes so as to mutually couple the first and second beams. Wire cable connection. The method of claim 1, The coupling jaw is provided on the outer circumferential surfaces of the first and second connection units facing each other, respectively, the first projection and the first projection portion protruding a predetermined length from the outer circumferential surfaces of the first and second connection units; A second protrusion connected to the second protrusion and having a relatively longer protrusion length than the first protrusion, and a third protrusion connected to the second protrusion and protruding with the same length as the first protrusion, wherein the second protrusion is provided. The fastening hole is formed on the upper surface of the part, The upper surface of the first section steel is provided with a sliding hole extending along the protruding direction of the coupling jaw, The first section steel and the coupling jaw are a fastening member coupled to the sliding hole and the fastening hole, and the inner circumferential surface of the first section steel and the front surface of the first and third protrusions are interconnected to each other. 1. The wire cable connecting device of claim 1, wherein the first steel is guided to the sliding hole by a resilient member for elastically biasing the steel to the electric pole. The method of claim 2, The first connecting unit has a predetermined height and an inner diameter of the first body having an octagonal tube shape relatively larger than the outer diameter of the pole; An upper support part installed to cross the upper opening of the first body so as to be supported on the upper surface of the pole when the first body is installed on the pole; A rubber pad is screwed through the side surface of the first body, and a rubber pad is attached to one end of the first body in contact with the outer circumferential surface of the first body, and a hexagonal head is attached to the other end of the first body. It has a first pressing bolt formed; The second connection unit and the second body of the octagonal tube shape surrounding the outer peripheral surface of the pole; A screw pad is screwed through the side surface of the second body, and a rubber pad is attached to one end of the second body in contact with the outer circumferential surface of the second body, and a hexagonal head is attached to the other end of the second body. And a second pressing bolt formed; The first and second connecting portions formed on the outer circumferential surfaces of the first and second bodies so as to have a screw hole extending in the vertical direction; The first and second connection parts are interconnected to each other, and the first portion screwed to the first connection portion, the width adjustment bolt of the opposite direction of the formation of the screw thread of the second connection portion screwed to the second connection portion Wire and cable connection device for transmission and distribution, characterized in that provided.

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