KR101336114B1 - Power transmission cable insulation support for preventing electric leakage - Google Patents

Abstract

The present invention relates to a cable insulation bar for preventing a short circuit in a transmitting line. A jumper line is supported by a top quarter sleeve and a bottom half sleeve. The bottom connection ring of a line post insulator is connection to a connection piece which is integrated to a tightening piece extended toward the front of the top quarter sleeve. The support central point of the line post insulator against the tightening piece is placed on the same virtual vertical plane as the central point of a screw bar which penetrates through a settling bar. The support central point of the jumper line by the top quarter sleeve and the bottom half sleeve of a jumper line support ball which support the jumper line is in a vertical downward direction. Between the top quarter sleeve and the bottom half sleeve and the jumper line, an insulation buffer is inserted. Between the sleeves and the tightening piece, an insulation buffer is inserted. The bottom half sleeve is rotated upward. An insulation buffer is inserted between the sleeves the tightening piece. Before the tightening piece is tightened by a bolt and a nut, an insulation buffer is put on a temporary hook piece of the jumper line which is extended from the top quarter sleeve. As a result, a worker is able to perform the final work easily and conveniently with both hands.

Description

Power transmission cable insulation support for preventing electric leakage

The present invention relates to a cable insulator for earth leakage cutoff of a transmission line. More specifically, the connection point of the jumper wire and the support center point of the jumper wire for the cable are located on the same imaginary vertical plane so that the jumper wire is naturally vertically downward. Suspension prevents torsion at the connection part of the cable and jumper wires, and prevents connection defects and shorts from occurring at the connection part of the cable and jumper wires, and also supports the jumper wire in supporting the jumper wire at the bottom of the line post insulator. By inserting a cushioning insulating material between the sphere and the jumper wire, even if the insulation coating of the jumper wire is peeled off, insulation breakdown can be prevented and shorts, short circuits, and fire can be prevented.The jumper wire support is supported at the bottom of the line post insulator by the jumper wire supporter. By temporarily supporting the jumper wire to the jumper wire support when The present invention relates to a cable insulator for short circuit interruption of a transmission line, which enables a user to freely and easily fix a jumper wire by a jumper wire supporter.

Generally, a large power generated in a power plant is transmitted to each substation with high-voltage power through a transmission line such as a power transmission tower. Then, in each substation, a substation is transformed into several stages, and a cable And the distribution process that will be supplied to each region.

Telephone poles are installed on the ground at regular intervals to supply power to each customer, the final stage of the distribution process.Insulation poles are installed on each pole, and both ends of the transmission and distribution cables are connected to the insulator fixed to the adjacent poles of the poles. The power and distribution cables connected to both sides of the telephone pole are connected by jumper wires.

Jumper wires are usually installed from the top down, but may be installed from the bottom up depending on the site.

As a technique for supporting a jumper wire to the insulator by using a line post insulator, a line post insulator is fixed to the insulator to support the jumper wire to the insulator. Position, the line post insulator and the jumper wire are bound with the banding wire, and the jumper wire and the bending wire are fastened with the cable ties so that the banding wire is not loosened arbitrarily. This can prevent the problem of deviation, short circuit of the power distribution line caused by sparking between the power distribution line and the banding wire to prevent the risk of human injury or fire, long life of the power distribution line and easy maintenance, “Transmission Line Construction on Line Post Insulator” Hanminguk Patent No. 0,516,906 is disclosed in claim (2005.09.15.).

However, in performing the operation of binding the jumper wire to the line post insulator in the registered patent, the worker has to wind the bending wire with the other hand while the jumper wire is positioned on the line post insulator with one hand. Not only is it very troublesome, there is a problem that the worker's posture is poor, causing the worker to fall.

As a solution to this problem, a semicircle has a central end formed at the top, a pinhole is provided at the bottom, and two pin fixing flanges are formed in two sets, and an upper portion of the insulator provided with a square roller entry hole between the pin fixing flanges. While the support part is formed, both sides of the insulator support part are integrally formed through the lower connection part, and the insulator support part is spaced in a predetermined distance from the inside, and a side end having a hole is formed in the upper part, and a bolt hole is provided in the lower part. One side frame composed of a cable support portion, a pair of insertion ends are formed on the upper side so as to be fixed to the one side frame and the hinge shaft, the pin hole is provided at the bottom, two sets of pin fixing flanges are formed in two sets, pin fixing flange Between the insulator support portions, which are formed with a rectangular roller access hole, are formed therebetween, while It is formed integrally through the connection portion of the, the insulator support is separated from the inside by a predetermined distance, the upper end is formed with a pair of fitting end is formed, the other side frame consisting of a cable support with a bolt hole in the lower side, one side frame It is rotatably fastened in a state of being fitted with a roller pin in the pin hole of the pin fixing flange formed on the other side frame, and the inside is provided with a hard rubber portion formed with a rotating hole penetrating the front and rear, and surrounds the outer peripheral surface of the hard rubber portion and The soft rubber part protruding backward is integrally formed, while the soft rubber part is a "fastening device for insulator and cable installed in the telegraph pole in the common housing complex", which includes a pressing roller formed of a plurality of recesses and convex parts. (2006.05.25.).

However, the registered patent is provided with an upper cradle at the top of the insulator, and when the jumper wire is installed in the bottom-up manner, the bottom-up jumper wire is once the top of the insulator in the process of fixing the bottom-up jumper wire to the insulator top. Since the work can be carried out in the state of being mounted on the cradle, the work can be simplified. However, when the jumper wire is installed from the top to the bottom, the bottom jumper wire is not provided on both sides. This is also cumbersome and the worker's posture is poor because it is necessary to tighten the two frames with one hand while inserting between the frames to prevent the top-down jumper wire from escaping between the two frames. Problem that causes workers to fall. There is.

In addition, conventionally, there is a problem that the connection failure and short occurs in the connection between the cable and the jumper wire over time.

6 is a schematic diagram for explaining a support position of a cable and a jumper wire according to an embodiment of the prior art.

6, the threaded rod 6 for supporting the cable insulator 5 on which the cable 2 is supported penetrates horizontally to the mounting table 4, and the jumper wire 3 is supported. Since the threaded rod 8 for supporting the line post insulator 7 must be penetrated perpendicularly to the mount 4, the position of the threaded rod 6 and the threaded rod 8 at the side is L1. The distance between the support center of the jumper wire 3 supported on the lower end of the line post insulator 7 and the support center of the cable 2 to the cable insulator 5 is inevitably separated by L1. As a result, the jumper line 3 is not naturally suspended in the vertical direction but is supported in a state inclined by θ with respect to the vertical line.

Therefore, a twist occurs at the connection point of the jumper wire 3 to the cable 2, and thus there is a problem in that connection defects and shorts occur at the connection portion between the cable and the jumper wire.

Republic of Korea Patent No. 0516906 (2005.09.15.) "Installation method of transmission and distribution line on the line post insulator" Republic of Korea Patent No. 0585820 (2006.05.25.) "Insulator and cable fastening device installed on the telephone pole in the housing complex"

Therefore, an object of the present invention is that the connection point of the jumper wire to the cable and the support center point of the jumper wire are located on the same imaginary vertical plane so that the jumper wire is naturally suspended vertically so that no twist occurs in the connection portion of the cable and the jumper wire. It is to provide a cable insulator for the short circuit interruption of the transmission line so that the connection and the connection between the cable and the jumper wire does not occur.

Another object of the present invention is to insert a buffered insulating material between the jumper wire support and the jumper wire in supporting the jumper wire at the bottom of the line post insulator, even if the insulation coating of the jumper wire is peeled off, insulation breakdown is prevented, and short circuit, short circuit and fire are prevented. It is intended to provide a cable insulator to prevent leakage of a transmission line so that it can be prevented.

Still another object of the present invention is to fix the jumper wire by the final jumper wire support by temporarily supporting the jumper wire at the bottom of the line post insulator by supporting the jumper wire by the jumper wire supporter. It is to provide a cable insulator for the short circuit interruption of the transmission line so that the operator can use both hands freely and easily.

In order to achieve the above object, the present invention provides a pair of left and right mounting brackets fixed to both sides of the telephone pole, and a cable insulator and one end of the cable insulator are connected to one end and a cable is connected to the other end. An insulator for supporting a jumper wire connected to a cable using an insulator in an insulated state; Mounting fixing means for fixing the mounting to the telephone pole; Cable support means for supporting the cable insulator on which the cable is supported to the mount; Linepost insulator support means for supporting the linepost insulator on the mount; A jumper wire support means for supporting the jumper wire at a lower end of the line post insulator, wherein the mount fixing means penetrates the telegraph pole and both side mounts horizontally from the one side mount in the other side mount. A bolt which is protruded and a nut which is fastened to the threaded portion of the bolt and tightly attached to the other side mounting portion, wherein the cable supporting means is integrally provided with a threaded rod penetrating the mounting portion in a lateral direction and the other end of the screwing rod. A cable insulator connector having a 'c'-shaped connecting piece coupled to the cable insulator and inserted therein, a nut fastened to a screw rod from the inside and the outside of the mount, a bolt passing through the connecting piece and the connecting ring; And a nut fastened to the bolt, wherein the line post insulator support means is perpendicular to any one of the mounts. A line post insulator connector having a screw rod penetrating through the screw rod and a 'c'-shaped connecting piece which is integrally coupled to the lower end of the screw rod and into which the upper link ring of the line post insulator is inserted, and fastened to an upper end of the screw rod. A nut that is in close contact with one of the upper and lower surfaces, a bolt that penetrates the upper connection ring of the connecting piece and the line post insulator, and a nut that is fastened to the bolt to be in close contact with the connecting piece. The means includes a pair of buffer insulating material surrounding the upper and lower portions of the jumper wire, a 'c' shaped connecting piece into which the lower link of the line post insulator is inserted, a bolt passing through the lower link of the connecting piece and the line post insulator, and A nut fastened to a bolt and tightly attached to the connecting piece, and integrally coupled to a lower end of the connecting piece, An upper quarter sleeve formed in a semi-cylindrical shape to surround a main surface, a lower half sleeve formed in a semi-cylindrical shape to surround an outer circumferential surface of the lower buffer insulating material, and a plurality of hinges formed to be engaged with each other on one side of the upper quarter sleeve and the lower half sleeve A jumper wire support having a portion, a hinge pin connecting the hinge portion, an upper and lower tightening piece extending forwardly of the upper quarter sleeve and the lower half sleeve, a buffer insulating plate inserted between the tightening piece, and A fastening bolt penetrating the upper and lower fastening pieces and the buffer insulating plate from the upper fastening piece, a fastening nut fastened to the fastening bolt and tightly attached to the lower surface of the lower fastening piece, and the upper quarter sleeve has a 'U' shape between the hinge pieces. A jumper wire temporary latching piece which is curvedly extended to temporarily support the jumper wire, and the jumper wire temporary hooking It provides for the cable insulating bands corresponding to the side of the earth leakage protection transmission line configured by comprising a cutting section that is formed in the lower half sleeve.

According to the present invention, the jumper wire is supported by the upper quarter sleeve and the lower half sleeve constituting the jumper wire supporter, and the lower link of the linepost insulator is integrally coupled to the tightening piece extending forward of the upper quarter sleeve. It is configured to be connected to the connecting piece, wherein the support center point of the jumper wire is located on the same virtual vertical plane as the center point of the bolt penetrating the mounting to secure the cable insulator to the mounting, and the line post insulator The center of support is located on the same imaginary vertical plane as the center point of the threaded rod penetrating the mounting to secure the linepost insulator to the mounting, so that the upper quarter sleeve and the lower half sleeve of the jumper support supports the jumper wire. Virtual point where the connection point of the jumper wire to the cable is the same Is positioned on the vertical plane the jumper wire is suspended vertically downward, and naturally does not occur in the torsional connection portions and cable jumper lines, thus no longer a connection failure occurs in the connection portion and the short cable and the jumper line.

In addition, in supporting the jumper wire to the jumper wire support, a buffer insulating material is inserted between the upper quarter sleeve and the lower half sleeve and the jumper wire constituting the jumper wire support, so that even if the insulation coating of the jumper wire is peeled off, insulation breakdown is prevented and the short is prevented. And short circuit and fire are prevented. In addition, a short circuit and a short circuit are prevented because a buffer insulating material is inserted between the fastening pieces of the jumper wire support.

In addition, in performing the operation of the jumper wire by using the jumper wire support on the bottom of the line post insulator, the lower half sleeve is rotated upward, and the cushioning insulation material is inserted between the tightening pieces, and the tightening pieces are tightened by bolts and nuts. The operator can perform the final work simply and easily by using both hands by placing the cushioning insulating material covered by the jumper wire on the temporary jumper wire extending from the upper quarter sleeve before performing the general work.

1 to 5 show a preferred embodiment of the cable insulator for the electrical leakage cutoff of the transmission line according to the present invention,
1 is an exploded perspective view seen from the top direction;
2 is a partially exploded perspective view seen from the lower surface direction;
3 is a perspective view,
4 is an enlarged vertical front view;
5 is a view for explaining the process of fixing the jumper wire according to the present invention,
And
6 is a schematic diagram for explaining a support position of a conventional cable and a jumper wire.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the cable insulator for the electrical leakage cutoff of the transmission line according to the present invention will be described in detail.

As shown in FIGS. 1 to 5, a cable insulator for earth leakage blocking of a transmission line according to the present embodiment is illustrated in FIGS.

A pair of left and right mounting brackets 11 and 12 fixed to both sides of the telephone pole 1, and a connecting ring 21 is provided at one end and connected to the cable insulator 20 and the upper and lower ends, the cable 2 is connected to the other end An insulator for supporting a jumper wire 3 connected to the cable 2 in an insulated state by using a line post insulator 30 having rings 31 and 32;

Mount fixing means (40) for fixing the mounts (11, 12) to the telephone pole (1);

Cable support means (50) for supporting the cable insulator (20) on which the cable (2) is supported on the mounts (11, 12);

Linepost insulator support means (60) for supporting the linepost insulator (30) on the mounts (11, 12);

And a jumper wire supporting means 70 for supporting the jumper wire 3 at the lower end of the line post insulator 30.

Conventional concrete or steel telephone poles are used for the telephone pole 1, and the mounting rods 11 and 12 are steel shaped steel such as square pipes.

The mount fixing means 40 is a bolt 31 which penetrates the telegraph pole 1 and both side mounts (11, 12) in the horizontal direction from the one side mount (11) and protrudes from the other side mount (12); And a nut 42 fastened to the threaded portion of the bolt 41 to be in close contact with the other mount 12.

In the drawings, reference numerals 41a and 42a denote washers.

The cable support means 50 is integrally coupled to the other end of the threaded rod 52 and the other end of the threaded rod 52 and the mounting rods (11, 12) of the cable insulator 20 Cable insulator connector 51 having a 'c' shaped connecting piece 53 into which the connecting ring 21 is inserted, and nuts 54 fastened to the screw rods 52 from the inside and the outside of the mounting table 10. And a bolt 55 passing through the connecting piece 53 and the connecting ring 21 and a nut 56 fastened to the bolt 55.

In the drawings, reference numerals 55a and 56a denote washers.

The line post insulator support means 60 is integrally coupled to a lower end of the screw rod 62 and a screw rod 62 penetrating perpendicularly to any one of the mounting brackets 11 and 12 and the line post. The line post insulator connector 61 having a 'c' shaped connecting piece 63 into which the upper coupling ring 31 of the insulator 30 is inserted, is fastened to the upper end of the screw rod 62, and the mounting stand 11 , 12, a nut 64 in close contact with one of the upper and lower surfaces, a bolt 65 penetrating the upper connecting ring 31 of the connecting piece 62 and the line post insulator 30, and the bolt ( It is configured to include a nut 66 is fastened to 65 and in close contact with the connecting piece (63).

In the drawings, reference numerals 64a, 65a, 66a denote washers.

The jumper wire supporting means 70 includes a pair of buffer insulating materials 71 and 72 surrounding upper and lower portions of the jumper wire 3 and a lower link ring 32 of the line post insulator 30. 'The connecting piece 73, the bolt 74 passing through the connecting piece 73 and the lower connecting ring 32 of the line post insulator 30, and the bolt 74 is fastened to the connecting piece 73 The nut 75 to be in close contact,

The upper quarter sleeve 77 is integrally coupled to the lower end of the connecting piece 73 and formed in a semi-cylindrical shape to surround the outer circumferential surface of the upper buffer insulating material 71 and the semi-cylindrical shape to surround the outer circumferential surface of the lower buffer insulating material 72. A lower half sleeve 78 formed of a plurality of hinge portions 79 and 80 and a plurality of hinge portions 79 and 80 formed to be engaged with each other on one side of the upper quarter sleeve 77 and the lower half sleeve 78. A jumper wire supporter (76) having a hinge pin (81) connecting the

Upper and lower fastening pieces 82 and 83 extending forwardly of the upper quarter sleeve 77 and the lower half sleeve 80, and a buffer insulating plate 84 inserted between the fastening pieces 82 and 83; Fastening bolts 85 penetrating through the upper and lower tightening pieces 82 and 83 and the buffer insulating plate 84 from the upper tightening piece 82, and fastened to the tightening bolts 85, respectively. A jumper line temporary hook for temporarily supporting the jumper wire 3 by being curved in a 'U' shape between the hinge nut 86 and the upper quarter sleeve 77, which is in close contact with the lower surface, and the hinge piece 79. The needle piece 87 and the cutout part 88 formed in the lower half sleeve 78 are cut | disconnected in correspondence with the said jumper wire temporary latching piece 87, and are comprised.

In the drawings, reference numerals 74a, 75a, 85a, 86a denote washers.

In the above description, reference numerals for holes through which the bolt 41, the screw rod 62, and the bolt 85 pass through are omitted.

Hereinafter, a process of installing a power transmission cable by a cable insulator for short circuit interruption of the power transmission line of the present invention will be described.

Installing the power transmission cable is a first step of mounting the mounting (11, 12) on both sides of the upper end of the telephone pole (1) by the mounting fixing means 40, the cable by the cable support means 50 ( 2) a second step of supporting the mount 11, 12, a third step of supporting the line post insulator 30 to the mount 11 by the line post insulator supporting means 60, the jumper wire The support means 70 is made through a fourth step of supporting the jumper wire 3 at the lower end of the line post insulator 30.

In the first step, the mounting bases 11 and 12 are positioned on both sides of the upper end of the telephone pole 1, and the bolts 41 are penetrated through the mounting bases 11 and 12 and the telephone pole 1 to mount the mounting base 12. By fastening the nut 42 to the bolt 41 protruding from the). In this case, in order to prevent the fastening state of the bolt 41 and the nut 42 from being relaxed, it is preferable to fasten two nuts 42 overlapping each other, and between the head of the bolt 41 and the mounting table 11. It is preferable to fit washers 41a and 42a between the nut 42 and the mounting table 12.

In the second step, the screw rod 52 is mounted on the mounting rods 11 and 12 from the outside in a state in which one nut 54 is pre-screwed to the screw rod 52 constituting the cable insulator connector 51. Horizontally through the mounting rod, and tighten the nut 54, which is pre-screwed to the screw rod 52, to be in close contact with the outer surface of the mounting brackets 11 and 12, and to penetrate the mounting brackets 11 and 12. The cable insulators 51 are fixed to the mounts 11 and 12 by fastening the nuts 54 to the protruding portions of the inner surfaces of the 10 so as to be in close contact with the inner surfaces of the mounts 11 and 12. Next, the connecting ring 21 of the cable insulator 20 is inserted into the connecting piece 53 of the cable insulator connector 51, and a bolt is connected to the connecting piece 53 and the connecting ring 21 at one side of the connecting piece 53. It is made by fastening the nut 56 to the bolt 55 protruding from the other side of the connecting piece 53 by penetrating the 55. At this time, in order to prevent the fastening state of the screw rod 52 and the nut 54, the bolt 55 and the nut 56 is relaxed, it is preferable to fasten two nuts 54 and 56, respectively, the bolt nut Inserting the washers 54a, 55a, 56a between the 54 and the mounts 11, 12, between the head of the bolt 55 and the connecting piece 53, and between the nut 56 and the connecting piece 53. desirable.

In the third step, the screw rod 62 vertically penetrates from the bottom to the mount 11 in a state where the lower nut 64 is pre-screwed to the screw rod 62 constituting the linepost insulator connector 61. And tighten the lower nut 64, which is pre-screwed to the screw rod 62, so as to be in close contact with the bottom surface of the mounting table 11, and penetrate the mounting table 11 to protrude from the upper surface of the mounting table 11; The nut 64 is fastened to the upper part of the mounting table 11, and then the upper link 61 of the line post insulator 30 is inserted into the connecting piece 63 of the line post insulator connector 61. In order to fasten the nut 66 to the bolt 65 protruding from the other side of the connecting piece 63 by passing the bolt 65 through the connecting piece 63 and the connecting ring 31 from one side. It is done by In this case, in order to prevent the fastening state of the screw rod 62 and the nut 64, the bolt 65 and the nut 66 from being relaxed, it is preferable that the nuts 64 and 66 overlap each other and fasten. Washers 64a, 65a, 66a are preferably fitted between the 64 and the mounting table 11, between the bolt 65 and the connecting piece 63, and between the nut 66 and the connecting piece 63, respectively.

In the fourth step, as shown in (a) of FIG. 5, the lower link ring 32 of the line post insulator 30 is inserted into the connecting piece 73, and the connecting piece is formed at one side of the connecting piece 73. 73 and the lower connecting ring 32 to pass through the bolt 74 and the nut 75 to the bolt 74 protruding from the other side of the connecting piece (73) by close contact with the other side of the connecting piece (73) ( 73) is fixed to the lower end of the line post insulator 30. At this time, the connecting piece 73 is integrally coupled to the fastening piece 82 of the upper quarter sleeve 77 of the jumper wire support 76, the upper quarter sleeve 77 and the lower half sleeve 78 is a hinge piece The jumper wire supporter 76 is coupled to the lower end of the line post insulator 30 because it is coupled by the hinge pins 81 and 80. In addition, the lower half sleeve 78 maintains a state in which the lower half sleeve 78 is rotated downward by the hinge pieces 79 and 80 and the hinge pins 81. In this case, in order to prevent the fastening state of the bolt 74 and the nut 75 from being relaxed, it is preferable to fasten two nuts 75 by overlapping, between the head of the bolt 74 and the connecting piece 73 and the nut. It is preferable to insert the washers 74a and 75a between the 75 and the connecting piece 73.

In this state, as illustrated in FIG. 5B, the buffer insulating materials 71 and 72 are covered on the upper and lower portions of the jumper wire 30, and the buffer insulating materials 71 and 72 are disposed on the upper quarter sleeve 77. It temporarily supports over the extended jumper wire temporary latching piece 87.

Next, as shown in (c) of FIG. 5, the lower half sleeve 78 that has been rotated downward is rotated upward and tightened integrally extended from the upper quarter sleeve 77 and the lower half sleeve 78. The buffer insulating plate 84 is inserted between the pieces 82 and 83.

In this case, since the cutout 88 is formed in the lower half sleeve 78, a jumper wire temporary latching piece 87 formed in the upper quarter sleeve 77 is inserted into the cutout 88.

Finally, as shown in FIG. 5D, the bolts 85 pass through the fastening pieces 82 and 83 and the buffer insulating plate 84 at the upper part of the fastening pieces 82, and the fastening pieces 83. The jumper wires (3) covered with the buffer insulating materials (71, 72) are fastened by fastening the nuts (86) to the bolts (85) protruding from the lower surface of the rod) so as to be in close contact with the lower surfaces of the fastening pieces (83). ) To be fixed and supported. In this case, in order to prevent the fastening state of the bolt 85 and the nut 86 from being relaxed, it is preferable to fasten two nuts 86 overlapping each other, and between the head of the bolt 85 and the tightening piece 82. It is preferable to fit washers 85a and 86a between the nut 86 and the fastening piece 83.

As described above, when the cable 2 and the jumper wire 3 are installed according to the present invention, the jumper wire 3 is formed on the upper quarter sleeve 77 and the lower side of the jumper wire support 76. The connection piece 73 supported by the half sleeve 78 and integrally coupled to the tightening piece 82 extending forward of the upper quarter sleeve 77 is supported by the lower linkage 32 of the linepost insulator 30. In order to secure the cable insulator 20 to the mounts 11 and 12, the bolts 41 and the line post insulator 30 penetrated to the mounts 11 and 12 are mounted to the mount 11. For fixing, the distance L1 between the threaded rod 62 penetrating the mounting table 11, the connecting piece 73 to which the lower end of the line post insulator 30 is connected, the upper quarter sleeve 77, and the lower half sleeve 78 The distance L1 between the centers of the same) is the same, so that the support center point of the jumper wire 3 fixes the cable insulator 20 to the mounts 11, 12. For example, the center point of the bolt 41 penetrating the mounts 11 and 12 is located on the same virtual vertical plane, and the support center point of the line post insulator 30 with respect to the fastening piece 73 is the line post insulator. Jumper wires supporting the jumper wires 3 because they are positioned on an imaginary vertical plane that is the same as the center point of the screw rod 62 penetrating the mount 11 so as to fix the 30 to the mount 11. The support center of the jumper wire 3 by the upper quarter sleeve 77 and the lower half sleeve 78 of the support 76 is on an imaginary vertical plane where the connection point of the jumper wire 3 to the cable 2 is the same. The jumper wire 3 is naturally suspended vertically downward so that no torsion occurs at the connection between the cable 2 and the jumper wire 3, and thus the cable 2 and the jumper wire 3 Poor connection and short will not occur in the connection area.

In addition, in supporting the jumper wire 3 to the jumper wire support 76, the upper quarter sleeve 77 and the lower half sleeve 78 constituting the jumper wire support 76 are cushioned between the jumper wire 3. Since the insulation materials 71 and 72 are inserted, even if the insulation coating of the jumper wire 3 is peeled off, insulation breakdown is prevented, and short circuits, short circuits, and occurrence of fire are prevented. In addition, since the buffer insulating material 84 is inserted between the fastening pieces 82 and 83 of the jumper wire support member 76, a short and a short circuit are prevented.

In addition, the lower half sleeve 78 is rotated upward and the tightening pieces 82 and 83 are used to support the jumper wire 3 using the jumper wire support 76 at the lower end of the line post insulator 30. A jumper wire temporary hook extending from the upper quarter sleeve 77 before the final work of inserting the cushioning insulation material 84 in between and tightening the tightening pieces 82 and 83 by bolts 85 and nuts 86 is performed. By placing the buffer insulating material 71, 72 covered by the jumper wire 3 on the needle piece 87, the operator can perform the final work simply and easily using both hands.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or essential characteristics thereof. Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas falling within the scope of the same shall be construed as falling within the scope of the present invention.

1 telephone pole 2: cable
3: jumper wire 11, 12: mounting table
20: cable insulator 30: linepost insulator
40: mounting means fixing means 50: cable support means
60: line post insulator support means 70: jumper wire support means
71, 72: buffer heat transfer material 73: connection piece
76 jumper wire support 77 upper quarter sleeve
78: lower half sleeve 79, 80: hinge piece
81: hinge pin 82, 83: tightening
84: buffer insulating plate 87: temporary jumper wire
88: incision

Claims (1)

A pair of left and right mounting brackets 11 and 12 fixed to both sides of the telephone pole 1, and a connecting ring 21 is provided at one end and connected to the cable insulator 20 and the upper and lower ends, the cable 2 is connected to the other end An insulator for supporting a jumper wire 3 connected to the cable 2 in an insulated state by using a line post insulator 30 having rings 31 and 32;
Mount fixing means (40) for fixing the mounts (11, 12) to the telephone pole (1);
Cable support means (50) for supporting the cable insulator (20) on which the cable (2) is supported on the mounts (11, 12);
Linepost insulator support means (60) for supporting the linepost insulator (30) on the mounts (11, 12);
And a jumper wire supporting means 70 for supporting the jumper wire 3 at the lower end of the line post insulator 30,
The mount fixing means 40 is a bolt 41 which penetrates the telegraph pole 1 and both side mounts (11, 12) horizontally from one side mount (11) and protrudes from the other side mount (12), It is configured to include a nut 42 is fastened to the threaded portion of the bolt 41 in close contact with the other mounting table 12,
The cable support means 50 is integrally coupled to the other end of the threaded rod 52 and the other end of the threaded rod 52 and the mounting rods (11, 12) of the cable insulator 20 Cable insulator connector 51 having a 'c' shaped connecting piece 53 into which the connecting ring 21 is inserted, and nuts fastened to the screw rods 52 from the inside and the outside of the mounts 11 and 12 ( 54, a bolt 55 passing through the connecting piece 53 and the connecting ring 21, and a nut 56 fastened to the bolt 55.
The line post insulator support means 60 is integrally coupled to a lower end of the screw rod 62 and a screw rod 62 penetrating perpendicularly to any one of the mounting brackets 11 and 12 and the line post. The line post insulator connector 61 having a 'c' shaped connecting piece 63 into which the upper coupling ring 31 of the insulator 30 is inserted, is fastened to the upper end of the screw rod 62, and the mounting stand 11 , 12, a nut 64 in close contact with one of the upper and lower surfaces, a bolt 65 passing through the connecting piece 63 and the upper end ring 31 of the line post insulator 30, and the bolt ( It is configured to include a nut 66 fastened to 65 and in close contact with the connecting piece 63,
The jumper wire supporting means 70 includes a pair of buffer insulating materials 71 and 72 surrounding upper and lower portions of the jumper wire 3 and a lower link ring 32 of the line post insulator 30. 'The connecting piece 73, the bolt 74 passing through the connecting piece 73 and the lower connecting ring 32 of the line post insulator 30, and the bolt 74 is fastened to the connecting piece 73 The upper quarter sleeve 77 and the lower buffer insulating material 72 which are integrally coupled to the nut 75 to be in close contact with the lower end of the connecting piece 73 and formed in a semi-cylindrical shape to surround the outer circumferential surface of the upper buffer insulating material 71. A lower half sleeve 78 formed in a semi-cylindrical shape to surround the outer circumferential surface, a plurality of hinge parts 79 and 80 formed to be engaged with each other on one side of the upper quarter sleeve 77 and the lower half sleeve 78, and the A jumper wire supporter 76 having a hinge pin 81 connecting the hinge portions 79 and 80, the upper quarter sleeve 77, The upper and lower tightening pieces 82 and 83 extending forward of the side half sleeve 78, the buffer insulating plate 84 inserted between the tightening pieces 82 and 83, and the upper tightening piece 82 Fastening bolts 85 penetrating the upper and lower tightening pieces 82 and 83 and the buffer insulating plate 84, and tightening nuts 86 that are fastened to the lower bolts 83 by being fastened to the tightening bolts 85. And a jumper wire temporary latching piece 87 adjacent to the hinge portion 79 and extending in a 'U' shape to temporarily support the jumper wire 3 to the upper quarter sleeve 77, and the jumper. A cable insulator for interrupting the electrical leak of a power transmission line comprising a cutout portion (88) formed in the lower half sleeve (78) in correspondence with a line temporary fastening piece (87).

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