KR102644279B1 - Top-down fastening wire clamp for bypass cable head capable of safe indirect live wire operation and indirect live wire elastic connection method using the same - Google Patents

Abstract

The present invention relates to a top-down fastening type wire clamp for a bypass cable head used in a bypass cable standing connection device for installing a bypass cable during uninterrupted construction for replacement and relocation of distribution lines and change of transition site, and is described in more detail. Then, when installing the wire clamp for the bypass cable head on the power line, the bypass cable can be used in a top-down fastening method that rotates from the top to the bottom to secure the power line, rather than rotating from the bottom to the top to secure the power line. The top-down fastening hook of the top-down fastening wire clamp for the pass cable head is hinged to the upper part of the clamp body, and a release direction overload prevention clutch type tightening device is connected to the rear of the top-down fastening hook to form the top-down fastening hook. Unlike the prior art, the power line is fixed by rotating from the top to the bottom, so that in the process of fixing the power line, the top-down fastening wire clamp for the bypass cable head has elasticity to connect to the conductor of the power line, thereby breaking away from the power line. The technical field of a top-down fastening type wire clamp for a bypass jumper cable head capable of safe work on indirect live wires to prevent falling and safety accidents due to this and a method for indirect live wire elastic connection using the same is disclosed.

Description

Top-down fastening wire clamp for bypass cable head capable of safe indirect live wire operation and indirect live wire elastic connection method using the same {Top-down fastening wire clamp for bypass cable head capable of safe indirect live wire operation and indirect live wire elastic connection method using the same}

The present invention relates to a top-down fastening type wire clamp for a bypass cable head used in a bypass cable standing connection device for installing a bypass cable during uninterrupted construction when replacing or relocating a distribution line and changing a new site, and is described in more detail. Then, when installing the wire clamp for the bypass cable head on the power line, the bypass cable can be used in a top-down fastening method that rotates from the top to the bottom to secure the power line, rather than rotating from the bottom to the top to secure the power line. The top-down fastening hook of the top-down fastening wire clamp for the pass cable head is hinged to the upper part of the clamp body, and a release direction overload prevention clutch type tightening device is connected to the rear of the top-down fastening hook to form the top-down fastening hook. Unlike the conventional method, the power line is fixed by rotating from the top to the bottom, so that in the process of fixing the power line, the top-down fastening wire clamp for the bypass cable head has elasticity to connect to the conductor of the power line, thereby breaking away from the power line. This relates to a top-down fastening type wire clamp for a bypass jumper cable head that allows safe work on indirect live wires to prevent falling and safety accidents caused by it, and a method for indirect live wire elastic connection using the same.

In modern society, the demand for electricity is rapidly increasing, and the demand for power quality is gradually increasing.

Accordingly, the uninterruptible distribution method, which allows construction to be carried out without cutting off power during work to reduce work outages and supply quality power during construction for new construction and maintenance of distribution lines, is mainly adopted and work is being carried out. .

This conventional uninterruptible distribution method using extra-high voltage distribution lines uses an uninterruptible temporary transmission method using live bypass cables, construction switches, uninterruptible transformer trains, bypass cables, etc. However, recently, as the risks of the direct live line method have emerged, As the ordering company, Korea Electric Power Corporation, decided to abolish the direct live wire method and introduce an uninterruptible power distribution method using the indirect live wire method in 2017, the development of tools and methods is insufficient at about 20% of the total process, and the application of the indirect live wire method is in a hurry. Due to the confusion caused by the combined use of the direct live wire method, not only is there a risk of safety accidents due to the live wire main, but work efficiency is reduced due to limitations in labor intensity and physical strength, making field use impossible. The difficult reality is being reported every day in the media, including newspapers in the power sector. .

At this time, unlike the previous direct live wire method, in which a live wire engineer wears protective gear and directly touches the extra high pressure of a live wire while working, the indirect live wire method uses a live wire of about 1.5m to 2m in length to secure a safety distance. This is a live-line construction method that performs indirect work using an insulating stick rather than directly contacting a live, extra-high-voltage distribution line.

Meanwhile, in order to implement the uninterruptible distribution method, bypass cables for live lines, construction switches, uninterruptible transformers, bypass cables, etc. are used. This method requires installing bypass cable clamps on extra-high voltage power lines using direct or indirect live lines. and is accompanied by jumper wire separation and compression.

In other words, referring to FIGS. 1A and 1B, the conventional uninterruptible power distribution method necessarily involves the installation process of the cable clamp (3). First, a cable temporary hanger (2) is attached to the extra-high voltage power line (6) and a live wire work stick (5) is installed. After installing, temporarily fix the bypass cable (7) temporarily mounted on the branch support concrete (4) to the temporary cable hanger (2) using a live wire work stick (5), and then use a live wire stripper. After removing the sheath of the special high-voltage power line (6), use the live wire work stick (5) again to attach the cable clamp (3) temporarily fixed to the cable temporary hanger (2) to the extra-high voltage power line (6) from which the sheath has been removed. ), insert the cable rotation device into the cable clamp (3), and then perform the connection process using the rotation function stick for indirect live wire. However, the indirect live wire uninterruptible distribution method as described above uses a stick for live wire work of about 1.5m to 2m in length, which is a very complex and cumbersome task, including a cutter for separating wires, a compressor for live wire (about 4.5kg), and The weight of cable clamps, etc. (approximately 5 to 20 kg) is placed on the end of the live wire work stick, making it impossible for the worker's physical strength to support the live wire work stick. As a result, mistakes such as dropping cable clamps, etc. during work are frequent, and as a result, the labor intensity of live wire technicians is at its peak. As physical strength increases, it not only raises concerns about musculoskeletal diseases but also causes safety accidents and line failures due to omission of protection. For this reason, the indirect live uninterruptible distribution method of the previous technology is being implemented in the live line major and application technology fields in related industries. are concerned about

Meanwhile, in the conventional indirect live uninterruptible power distribution method as described above, when a cable clamp is hung on a special high-voltage power line, in order to prevent the cable clamp from being separated from the special high-voltage power line, the extra-high voltage power line is placed in a receiving groove formed on the front side. After being received, that is, after the cable clamp is hung on the extra-high voltage power line, a fixing hook or fixing lever surrounding and fixing the open lower part of the receiving groove is attached to the cable clamp so that the cable clamp can be fixed to the extra-high voltage power line. It is installed.

However, the fixing hook or fixing lever is usually hinged to the cable clamp to surround and secure the open lower part of the receiving groove, and when rotated upward, it closes the open lower part of the receiving groove, that is, the A method of fixing a special high-voltage power line is adopted, and when work is performed in the above manner, the operator uses a live wire work stick at the bottom of the cable clamp, so the cable clamp is lifted and the open lower part of the receiving groove is There is a problem in that the cable clamp may separate from the extra-high voltage power line before being closed, causing it to fall and resulting in a safety accident.

Republic of Korea Patent No. 10-2115777 (2020.05.21.)

The present invention is a technology developed to solve the problems caused by the prior art described above. The cable clamp used in the conventional bypass cable standing connection device is used to close the receiving groove after being caught on the special high-voltage power line. There is a problem that it may break away from being lifted and fall, resulting in a safety accident.

A top-down fastening hook is hinged to the upper part of the clamp body of the wire clamp for the bypass cable head, and a release direction overload prevention clutch-type fastener is connected to the rear of the top-down fastening hook, so that the top-down fastening hook is different from the conventional one. By rotating from the top to the bottom to fix the power line, in the process of fixing the power line, the top-down fastening wire clamp for the bypass cable head has elasticity to connect to the conductor of the power line, thereby preventing it from breaking away from the power line and falling. The main purpose is to provide a top-down fastening wire clamp for bypass jumper cable heads that allows safe work on indirect live wires to prevent safety accidents from occurring, and an indirect live wire elastic connection method using the same.

In order to achieve the above-mentioned object, the present invention provides a clamp body (100) having a pair of fixing hooks (110) having a receiving groove (112) formed at the top capable of receiving a power line (W); It is hinged between a pair of fixing hooks 110 and holds the power line (W) received in the receiving groove 112 when rotated downward, and the power line (W) received in the receiving groove 112 when rotated upward. We present a top-down fastening type wire clamp for a bypass cable head capable of indirect live wire safety work, which is composed of a top-down fastening hook 200 that releases the grip of ).

In addition, the top-down fastening hook 200 of the present invention extends and protrudes from the front end, and has a gripping protrusion 210 that protrudes to have a width smaller than the gap between the pair of fixing hooks 110. It is characterized by being comprised including.

In addition, the clamp body 100 of the present invention is formed at the lower front, and is formed to correspond to the gripping protrusion 210, and is configured to include a gripping groove 120 into which the gripping protrusion 210 is inserted and withdrawn. It is characterized by

In addition, the top-down fastening hook 200 of the present invention has a link coupling portion 220 formed at the top; the lower part is hinged to the link coupling portion 220, and is coupled to be elastically supported rearward, and has an insulating impression. It is characterized in that it includes a rotating link 230, the upper part of which is connected to one end of the belt 10.

In addition, the top-down fastening hook 200 of the present invention has one side fixed to the inner front upper part of the link coupling portion 220 and the other side fixed to the rear of the rotary link 230, so that the rotary link 230 It is characterized in that it includes a torsion spring 240 that elastically supports rearwardly.

In addition, the rotary link 230 of the present invention includes a link housing 232 whose lower part is hinged to the link coupling portion 220 and a coupling groove 232a formed on the upper part; and the coupling groove 232a A fixing screw 234 whose lower part is coupled to the lower surface; and a detachable member 236 installed on the outer periphery of the fixing screw 234 to be positioned between the fixing screw 234 and the link housing 232; And a detachable spring 238 installed on the outer periphery of the fixing screw 234, the lower part of which is supported on the lower surface of the coupling groove 232a to elastically support the detachable member 236 in the upward direction. It is characterized by being comprised including.

In addition, the present invention is a housing 310 that is hinged between the pair of fixing hooks 110 and is hinged so as to be located behind the top-down fastening hook 200, and the lower part of the housing 310. The operating body 320 is coupled to the inner part of the upper part so as to be movable in the vertical direction, and the upper part is hinged to the rear of the top-down fastening hook 200, and is coupled to the lower part of the upper housing 310. It is characterized by comprising a release direction overload prevention clutch-type tightening device 300, which includes a lower rotating body 330 that moves the operating body 320 in the vertical direction.

In addition, the present invention includes a bypass cable connection part 400 rotatably connected to the lower part of the clamp body 100; and a bypass cable 500 rotatably connected to the lower part of the bypass cable connection part 400. ); It is characterized in that it is composed of a.

The top-down fastening wire clamp for the bypass cable head capable of indirect live wire safety work according to the present invention presented above is different from the conventional one by rotating the top-down fastening hook in the top-down direction, that is, from the top to the bottom, so that the power line is bypassed. By being fixed to the receiving groove of the top-down fastening type wire clamp for the cable head, in the process of fixing the power line, the top-down fastening type wire clamp for the bypass cable head has elasticity to connect to the conductor of the power line, thereby breaking away from the power line. It can be effective in preventing falls and safety accidents caused by them.

In addition, in the present invention, since the top-down fastening hook is rotated from the top to the bottom to fasten the power line to the receiving groove, the worker can use the release direction overload prevention clutch type tightening device in the downward direction using a live wire work stick. Work can be done by pulling, so the top-down fastening hook rotates while the wire clamp for the bypass jumper cable head is firmly hung on the power line, so when fastening the power line to the receiving groove, the top-down for the bypass cable head By having the connection elasticity of the fastening wire clamp to the conductor of the power line, the effect of preventing separation from the power line can be obtained.

1A and 1B are diagrams showing a conventional temporary cable connection clamp.
Figure 2 is a perspective view showing a top-down fastening type wire clamp for a bypass cable head capable of indirect live wire safety work according to a preferred embodiment of the present invention.
Figure 3 is a perspective view showing the operation of the top-down fastening hook of the top-down fastening type wire clamp for a bypass cable head capable of indirect live wire safety work according to a preferred embodiment of the present invention.
Figure 4 is an exploded side view showing a top-down fastening type wire clamp for a bypass cable head capable of indirect live wire safety work according to a preferred embodiment of the present invention.
Figure 5 is a partial projection side view showing a top-down fastening type wire clamp for a bypass cable head capable of indirect live wire safety work according to a preferred embodiment of the present invention.
Figure 6 is a partial projection side view showing the top-down fastening hook of the top-down fastening wire clamp for a bypass cable head capable of indirect live wire safety work according to a preferred embodiment of the present invention in operation according to the diameter of the power line.
Figure 7 is a side view showing a top-down fastening wire clamp for a bypass cable head capable of indirect live wire safety work according to a preferred embodiment of the present invention connected to a temporary hanger.
Figure 8 is an enlarged view of portion "A" of Figure 7.
Figure 9 is a diagram showing a bypass cable installation process according to a preferred embodiment of the present invention.
Figure 10 is a process diagram showing an indirect live wire elastic connection method according to a preferred embodiment of the present invention.
Figure 11 is a partial side view showing the state of raising the clamp during the conventional bypass cable installation process.
Figure 12 is a partial side view showing a state of raising a top-down fastening wire clamp for a bypass cable head capable of indirect live wire safety work according to a preferred embodiment of the present invention.
Figure 13 is a state diagram showing a three-phase transformer pole and an uninterruptible transformer device with a variable input device installed.

The present invention relates to a top-down fastening type wire clamp for a bypass cable head used in a bypass cable standing connection device for installing a bypass cable during uninterrupted construction when replacing or relocating a distribution line and changing a new site, and is described in more detail. When installing a top-down fastening wire clamp for the bypass cable head (hereinafter referred to as 'wire clamp') on the power line (W), the top-down fastening hook 200 of the wire clamp is connected to the clamp body 100. It is hinged to the upper part of the top-down fastening hook 200, and a loosening direction overload prevention clutch-type tightening device 300 is connected to the rear of the top-down fastening hook 200, so that the top-down fastening hook 200 moves in the top-down direction, that is, the upper part, unlike the conventional one. By rotating downward to fix the power line (W), in the process of fixing the power line (W), the wire clamp has elasticity to connect to the conductor of the power line (W), thereby preventing it from breaking away from the power line (W) and falling. This relates to a top-down fastening type wire clamp for a bypass cable head that allows indirect live wire safety work to prevent safety accidents due to occurring, and an indirect live wire elastic connection method using the same.

The top-down fastening type wire clamp for a bypass cable head capable of indirect live wire safety work of the present invention as described above includes a pair of fixing hooks 110 with a receiving groove 112 at the top capable of receiving a power line (W). A clamp body (100) provided; and is hinged between the pair of fixing hooks (110) to grip the power line (W) received in the receiving groove (112) when rotated downward, and when rotated upward. It is characterized by comprising a top-down fastening hook 200 that releases the grip of the power line (W) accommodated in the receiving groove 112.

In addition, the top-down fastening hook 200 of the present invention extends and protrudes from the front end, and has a gripping protrusion 210 that protrudes to have a width smaller than the gap between the pair of fixing hooks 110. It is characterized by being comprised including.

In addition, the clamp body 100 of the present invention is formed at the lower front, and is formed to correspond to the gripping protrusion 210, and is configured to include a gripping groove 120 into which the gripping protrusion 210 is inserted and withdrawn. It is characterized by

In addition, the top-down fastening hook 200 of the present invention has a link coupling portion 220 formed at the top; the lower part is hinged to the link coupling portion 220, and is coupled to be elastically supported rearward, and has an insulating impression. It is characterized in that it includes a rotating link 230, the upper part of which is connected to one end of the belt 10.

In addition, the top-down fastening hook 200 of the present invention has one side fixed to the inner front upper part of the link coupling portion 220 and the other side fixed to the rear of the rotary link 230, so that the rotary link 230 It is characterized in that it includes a torsion spring 240 that elastically supports rearwardly.

In addition, the rotary link 230 of the present invention includes a link housing 232 whose lower part is hinged to the link coupling portion 220 and a coupling groove 232a formed on the upper part; and the coupling groove 232a A fixing screw 234 whose lower part is coupled to the lower surface; and a detachable member 236 installed on the outer periphery of the fixing screw 234 to be positioned between the fixing screw 234 and the link housing 232; And a detachable spring 238 installed on the outer periphery of the fixing screw 234, the lower part of which is supported on the lower surface of the coupling groove 232a to elastically support the detachable member 236 in the upward direction. It is characterized by being comprised including.

In addition, the present invention is a housing 310 that is hinged between the pair of fixing hooks 110 and is hinged so as to be located behind the top-down fastening hook 200, and the lower part of the housing 310. The operating body 320 is coupled to the inner part of the upper part so as to be movable in the vertical direction, and the upper part is hinged to the rear of the top-down fastening hook 200, and is coupled to the lower part of the upper housing 310. It is characterized by comprising a release direction overload prevention clutch-type tightening device 300, which includes a lower rotating body 330 that moves the operating body 320 in the vertical direction.

In addition, the present invention includes a bypass cable connection part 400 rotatably connected to the lower part of the clamp body 100; and a bypass cable 500 rotatably connected to the lower part of the bypass cable connection part 400. ); It is characterized in that it is composed of a.

Hereinafter, the present invention will be described in detail with reference to Figures 2 to 12 showing embodiments of the present invention.

First, the top-down fastening type wire clamp for the bypass cable head used in the present invention, that is, the wire clamp, is used by the operator to use the ring 312b of the release direction overload prevention clutch type tightening device 300, which will be described in detail later, for live wire work. It is held by a stick and directly placed on the power line (W) and then fixed, or connected to a temporary hanger (not shown in the drawing) and an insulated lift belt (10), and then the temporary hanger is first placed on the power line (W) and then the insulated lift belt. After being raised or lowered by (10), the ring 332 of the release direction overload prevention clutch type tightening device 300 can be held by the worker through a live wire work stick and placed on the power line (W) and then fixed.

The clamp body 100, the main component of the present invention, is

It is provided with a pair of fixing hooks 110 having a receiving groove 112 capable of receiving a power line (W) at the top, and after the power line (W) is received in the receiving groove 112, the pair of fixing hooks A top-down fastening hook 200, which will be described in detail later, is hinged at the upper part between (110) so as to be rotatable in a direction perpendicular to the power line (W), so that the power line (W) is fixed as it rotates in the vertical direction, that is, To be grasped or to be ungrasped.

In addition, since the clamp body 100 of the present invention is configured to be mounted on the enclosed portion of the power line (W), its size can be changed to any extent depending on the thickness and shape of the power line (W), and the clamp body 100 can be used to It is made of a conductive material so that it can conduct electricity.

Specifically, the clamp body 100 of the present invention has a bypass cable connection part 400 and a bypass cable 500, which will be described in detail later, installed at the lower part, and a pair of fixing hooks 110 are integrated on both sides of the upper part. is formed by

At this time, the receiving groove 112 is preferably formed to a size that can accommodate power lines (W) of various sizes, and the power line (W) fixed by the top-down fastening hook 200, which will be described in detail later, The curvature radius of the upper part is formed to be 3 to 5 cm so that the upper and rear outer peripheries can be stably and firmly fixed, and the rear part is inclined forward toward the lower part.

In addition, the receiving groove 112 is formed at the top and rear as described above, so that the top-down fastening hook 200, which will be described in detail later, rotates from the top to the bottom to secure the power line (W). When the power line (W) is pressed upward and backward, the conductor of the power line (W) has connection elasticity, so that it is closely adhered to the upper and rear side, thereby achieving the effect of being fixed more stably and firmly.

The top-down fastening hook 200, which is a main component of the present invention,

It is hinged between the pair of fixing hooks 110 and holds the power line (W) received in the receiving groove 112 when rotated downward, and the power line received in the receiving groove 112 when rotated upward. By releasing the grip of (W), unlike before, the power line (W) is fixed when rotating from the top to the bottom in a top-down direction, so that when installing the wire clamp on the power line (W), the conductor of the power line (W) By having connection elasticity, it prevents the wire clamp from being separated from the power line (W) and falling.

At this time, the top-down fastening hook 200 of the present invention is connected to the release direction overload prevention clutch type tightening device 300, which will be described later, and is fixed by rotating it with a live wire work stick by the operator.

In addition, conventionally, a worker lifts a clamp using a stick for working with a live wire, accommodates the power line (W) in the receiving groove of the clamp, and then uses a fixing hook (top-down fastening of the present invention) while the clamp is lifted. The power line (W) is fixed by rotating the hook (corresponding to the hook 200) from the bottom to the top, but in this process, that is, when the power line (W) is received in the receiving groove and the fixing hook rotates in the upward direction. When the power line (W) leaves the receiving groove or is lifted up, the fixing hook is rotated from the top to the bottom by the power line (W), causing the power line (W) to be unfastened. As a result, the problem of safety accidents occurring in which the clamp is separated from the power line (W) frequently occurs.

However, the wire clamp of the present invention is lifted after the worker grasps the ring 332 of the loosening direction overload prevention clutch type tightening device 300, which will be described later, using a live wire work stick, and places the power line in the receiving groove 112. When W) is accepted, the hook 332, that is, the loosening direction overload prevention clutch type tightening device 300, is pulled downward with the live wire work stick, and at the same time, the top-down fastening hook 200 of the present invention is pulled from the top to the bottom. By rotating it to fix the power line (W), it is prevented from being separated from the power line (W) when the power line (W) is accommodated in the receiving groove and when the top-down fastening hook (200) is rotated from the top to the bottom. Not only does this prevent the top-down fastening hook 200 from rotating from the upper to the lower direction, but the top-down fastening hook 200 rotates from the lower to the upper direction by the power line (W) even if a lifting motion occurs. Since the power line (W) cannot be unfastened, the effect of preventing it from being released can be obtained.

In addition, the top-down fastening hook 200 of the present invention extends and protrudes from the front end, and includes a grip protrusion 210 that protrudes to have a width smaller than the gap between the pair of fixing hooks 110. The grip protrusion 210 achieves the effect of stably and firmly fixing the power line W accommodated in the receiving groove 112 despite the various diameters of the power line W.

In connection with the above, the clamp body 100 of the present invention is formed at the lower front side, and is formed to correspond to the gripping protrusion 210, and includes a gripping groove 120 into which the gripping protrusion 210 is retracted and withdrawn. When fixing a power line (W) of a relatively small diameter, the grip groove 120 increases the rotation angle of the top-down fastening hook 200 of the present invention, so that the grip protrusion 210 is retracted, It achieves the effect of stably and firmly fixing a relatively small direct hit power line (W).

At this time, the depth of the gripping groove 120 is the smallest among the power lines (W) in which the size of the receiving groove 112 according to the front-to-back thickness of the clamp body 100 and the rotation of the top-down fastening hook 200 is standardized. It will be obvious that it is formed to a size that can hold (W), and without considering these matters, various changes are made according to the judgment of a person skilled in the art in order to work on the power line (W) corresponding to a certain range of diameters. It will be self-evident that it is possible.

Meanwhile, the top-down fastening hook 200 of the present invention has a link coupling portion 220 formed at the top, a lower portion hinged to the link coupling portion 220, and an upper portion at one end of the insulated lift belt 10. It is configured to include a rotating link 230 to which is connected.

In addition, the top-down fastening hook 200 of the present invention has one side fixed to the inner front upper part of the link coupling portion 220 and the other side fixed to the rear of the rotary link 230 to secure the rotary link 230. It is configured to include a torsion spring 240 that provides elastic support to the rear.

That is, the clamp body 100 described above is not directly connected to one end of the insulated lift belt 10, but is connected to the insulated lift belt 10 by the rotary link 230, and the rotary link 230 ) is elastically supported rearward by the torsion spring 240 to move one end of the insulated lift belt 10 rearward, so that when the wire clamp of the present invention is installed on the power line (W), the insulated lift belt 10 This achieves the effect of preventing the movement from moving forward and interfering with work.

In addition, when installing the wire clamp of the present invention on the power line (W), in the conventional case, as shown in Figure 10, the receiving groove 112 of the clamp body 100 is formed at the front, so it is directed forward. The worker raises the wire clamp to the height of the power line (W) using a live wire work stick, etc., then places the wire clamp on the power line (W) and then holds the power line (W). At this time, the worker naturally lifts the clamp body. When the clamp body 100 is lifted by holding the rear lower part of the clamp body 100, the clamp body 100 is tilted forward, so the insulated lifting belt connected to the upper part is bent forward and moves down to accommodate the power line W in the receiving groove 112. ), a problem arises that makes it difficult to mount it.

However, when the wire clamp of the present invention is mounted on the power line (W), as shown in Figure 11, the rotating link 230 connected to one end of the insulated lifting belt 10 is elastically supported backward, so it rotates backward. Accordingly, one end of the insulated lift belt 10 is also moved to the rear of the clamp main body 100 of the present invention, so that the worker can lift the wire clamp of the present invention using a live wire work stick, etc. and simultaneously lift the insulated lift belt. One end of (10) is bent toward the rear of the clamp body 100 of the present invention, so that the power line (W) can be easily accommodated in the receiving groove 112 without interfering with the insulating lifting belt 10. It achieves an effect that can be easily mounted.

In addition, the rotary link 230 is preferably connected and disconnected in a one-touch method in order to easily connect or disconnect with the insulated lift belt 10. For this purpose, the rotary link 230 is connected to the link coupling. A link housing 232 whose lower part is hinged to the unit 220 and a coupling groove 232a formed on the upper part, a fixing screw 234 whose lower part is coupled to the lower surface of the coupling groove 232a, and A detachable member 236 installed on the outer periphery of the fixing screw 234 so as to be located between the fixing screw 234 and the link housing 232, and installed on the outer periphery of the fixing screw 234, wherein the coupling It is configured to include a detachable spring 238 installed on the lower surface of the groove 232a to elastically support the detachable member 236 upward.

In addition, the end of the insulating lifting belt 10 is provided with a connecting link (not shown) having a structure corresponding to the rotary link 230 of the structure described above, so that the detachable member 236 uses the fixing screw 234. Through the sliding operation and the upward elastic support operation, it is connected and disconnected in a one-touch method, thereby realizing the effect of making it easier to combine or separate.

The loosening direction overload prevention clutch type tightening device 300, which is a main component of the present invention,

A loosening direction overload prevention clutch type tightening device described in Patent No. 10-2082150 applied for and registered by the applicant of the present invention, the actuator 320 is hinged to the clamp body 100 and operates upward and downward. When the top-down fastening hook 200 is hinged to the rear of the top-down fastening hook 200 and operated by the operator, the top-down fastening hook 200 is rotated through the operating body 320. However, excessive rotational force in the loosening direction is prevented by preventing overload in the loosening direction. By suppressing the occurrence of , the clamp body 100 is prevented from being suddenly separated from the power line (W) due to excessive rotational force.

That is, in the loosening direction overload prevention clutch type tightening device 300 of the present invention, the operator rotates the top-down fastening hook 200 using a live wire work stick, etc., and thus the top-down fastening hook 200 The wire clamp of the present invention fixes or releases the power line (W).

At this time, since the detailed configuration of the loosening direction overload prevention clutch type tightening device 300 of the present invention is described in Patent Registration No. 10-2082150, only the configuration of the parts necessary for the present invention will be mentioned.

Specifically, the release direction overload prevention clutch type tightening device 300 of the present invention is hinged between the pair of fixing hooks 110, and is hinged so as to be located behind the top-down fastening hook 200. A housing 310 and an actuator 320, the lower part of which is coupled to the upper inner side of the housing 310 so as to be movable in the vertical direction, and the upper part of which is hinged to the rear of the top-down fastening hook 200. (corresponding to the rotating body 220 of Patent No. 10-2082150) and a lower rotating body 330 that is coupled to the lower part of the upper housing 310 and moves the operating body 320 in the vertical direction. It is configured to include a loosening direction overload prevention clutch type tightening device (300).

In addition, the loosening direction overload prevention clutch type tightening device 300 of the present invention is configured to include a ring 332 provided on the lower rotating body 330, and the operator can use the ring 332 to operate an automatic motor such as an electric motor. By connecting to a live wire work stick equipped with a rotating device and rotating the ring 332, the operating body 320 is moved in the up and down direction.

At this time, when the top-down fastening hook 200 rotates as the operating body 320 moves in the vertical direction, the housing 310 also naturally moves in response to the rotation of the top-down fastening hook 200 around the hinge axis. It is rotated.

In the loosening direction overload prevention clutch type tightening device 300 of the present invention, when the ring 332 is rotated in the tightening direction, the actuating body 320 moves upward and connects the top-down fastening hook 200 from the top. It rotates downward, and the wire clamp of the present invention is thereby fixed to the power line (W).

In addition, in the release direction overload prevention clutch type tightening device 300 of the present invention, when the ring 332 is rotated in the release direction, the operating body 320 moves downward and the top-down fastening hook 200 is lowered. is rotated upward, and at this time, if the automatic rotation device is activated even after the operating body 320 is completely moved downward, the wire clamp of the present invention may suddenly be separated from the power line (W). After the operating body 320 is completely moved downward, that is, when it rotates above a certain number of rotations, it idles, thereby preventing excessive rotational force from being generated in the loosening direction, thereby preventing the wire clamp of the present invention from being separated from the power line (W). can be prevented.

The bypass cable connection part 400, which is a main component of the present invention,

It is rotatably connected to the lower part of the clamp body 100, and the clamp body 100 and the bypass cable 500 are connected in a state in which the clamp body 100 is mounted on the enclosed portion of the power line (W). By allowing them to conduct electricity, the clamp body 100 can be configured to rotate freely to improve workability.

In more detail, the clamp body 100 of the present invention is configured to include a lower coupling portion 130 coupled to the lower portion and through which an energizing hole (not shown) is formed, and the bypass cable connection portion 400 is A rotating member 410 that is rotatably coupled to the clamp body 100 at the top and a lower portion coupled to the upper part of the bypass cable 500, and a lower coupling portion 130 outside the rotating member 410. It is characterized in that it includes a housing 420 that is coupled with and protects the rotating member 410. At this time, electricity from the power line (W) is transmitted to the lower coupling portion 130 through the clamp body 100. and is passed through the rotation member 410 to the bypass cable 500 in a rotatable state.

The bypass cable 500, a main component of the present invention, is

It is connected to the lower part of the bypass cable connection part 400, and is coupled to the lower part of the rotating member 410 of the bypass cable connection part 400 to connect to the lower part of the clamp body 100, that is, from the lower coupling part 130. By being rotated, the effect of improving workability is realized, which is to say, the clamp body 100 is rotated on the upper part of the bypass cable connection portion 400 to realize the effect of improving workability.

At this time, the rotating member 410 is connected to the lower part of the clamp body 100, that is, the lower coupling part 130, and a connecting member 412 that penetrates and is coupled to the conduction hole so as to be rotatable. It is coupled to the lower part and includes a rotating body 414 to which the upper part of the bypass cable 500 is coupled to the lower part. The connection member 412 has a protrusion (not shown) protruding from the upper part of the clamp body. By being close to the lower part of (100), the clamp body (100) rotates smoothly and achieves the effect of conducting electricity in a rotatable state to the bypass cable (500) coupled via the rotating body (414).

That is, one end of the bypass cable 500 is inserted and connected through the end of the bypass cable connection part 400, and the other end is inserted and connected through the end of the other bypass cable connection part 400, so that there are two It is configured to conduct electricity by connecting and connecting wire clamps.

Next, an indirect live wire elastic connection method using a top-down fastening wire clamp for a bypass cable head capable of performing indirect live wire safety work as described above will be described as follows.

The indirect live wire elastic connection method using a top-down fastening wire clamp for a bypass cable head capable of indirect live wire safety work according to the present invention (hereinafter referred to as the 'indirect live wire elastic connection method') may consist of 7 steps, , This includes the work preparation process (S10), bypass cable connection process (S20), jumper wire separation process (S30), main work process (S40), jumper wire connection process (S50), bypass cable separation process (S60), It consists of a finishing process (S70).

This indirect live wire elastic connection method of the present invention involves installing and replacing live switches or performing uninterrupted power distribution work, or installing construction switches on live electric poles to separate sections and then relocating and replacing electric poles and wires by diagonal work. Perform uninterruptible distribution work using indirect live lines for replacement, etc., use uninterruptible transformer equipment to perform uninterruptible distribution work using indirect live lines for the installation, replacement, or relocation of transformers from live electric poles without interruption, or lay uninterruptible bypass cables. Therefore, the relocation, replacement, and change of location of extra-high voltage distribution lines will be explained using the example of performing uninterrupted distribution work with indirect live lines.

The work preparation process (S10) is prepared for each phase by connecting a bypass cable lifting device and a top-down fastening wire clamp for the bypass cable head to the bypass cable on the power side and the load side of the live power line (W). It's fair.

The bypass cable connection process (S20) is a process of elastically connecting the top-down fastening wire clamp for the bypass cable head to which the bypass cable 500 is connected to the wrapped power line (W) using an insulating stick for a live wire.

The jumper wire separation process (S30) is a process of bypass connecting the wrapped power line (W) and the top-down fastening type wire clamp for the bypass cable head, and then separating the jumper wires on both sides of the work section to prepare for the main work construction. am.

The main work process (S40) is a process of performing distribution work within the work section in a diagonal state after the jumper wire separation process (S30).

At this time, replacement or relocation of electric poles or new installation, replacement or relocation of switches can be performed with the jumper wires separated and diagonal.

The jumper wire connection process (S50) is a process of connecting jumper wires on both sides of the work section after the main work process (S40) to supply power to the work section.

The bypass cable separation process (S60) is a process of separating the top-down fastening wire clamp for the bypass cable head to which the bypass cable 500 installed on the power line (W) is connected.

This is achieved by the worker using an insulating stick for live wires to open the top-down fastening hook 200 by rotating the overload prevention clutch-type tightening device 300 in the loosening direction of the top-down fastening type wire clamp for the bypass cable head. This is a process that allows the top-down fastening wire clamp for the cable head to be released from the power line (W).

The finishing process (S70) is a process of removing the bypass cable 500 and the top-down fastening wire clamp for the bypass cable head to which the bypass cable 500 is connected and organizing the site.

In addition, as shown in Figure 13, when transformer replacement and relocation work are performed uninterrupted using the uninterruptible transformer device 60, the jumper wire separation process (S30) involves the power line (W) and the bypass cable ( After connecting the top-down fastening wire clamp for the bypass cable head to which 500) is connected, uninterruptibly bypass connect the transformer 50 using the uninterruptible transformer device 60 and disconnect the COS down line 41, The main work process (S40) performs transformer replacement and relocation work in a diagonal state after separating the COS down line 41, and the jumper wire connection process (S50) performs the COS down line (41) after the main work process (S40). 41) can be replaced by sequentially connecting each phase.

As a result, the top-down fastening wire clamp for a bypass cable head capable of indirect live wire safety work of the present invention has a top-down fastening hook 200, unlike the conventional one, that moves the power line (W) in the top-down direction, that is, from the top to the bottom. , by fixing it in a wrapping motion from the top to the bottom, it has the elasticity of connection to the conductor of the power line (W), which has the effect of preventing it from falling away from the power line (W) and resulting safety accidents. You can.

The above has been described with reference to preferred embodiments of the present invention, and the present invention is not limited to the above embodiments, and through the above embodiments, those skilled in the art will understand the gist of the present invention. It can be implemented with various changes without departing from the scope.

W: Power line 10: Insulated lifting belt
30: Insulator 40: COS
41: COS cut line 50: Transformer
60: Uninterruptible transformer device
100: Clamp body
110: fixed hook 112: receiving groove
120: grip groove 130: lower coupling part
200: Top-down fastening hook
210: grip protrusion 220: link coupling portion
230: Rotating link 232: Link housing
232a: Coupling groove 234: Fixing screw
236: Removable member 238: Removable spring
240: Torsion spring
300: Clutch-type tightening device to prevent overload in the loosening direction
310, 420: Housing 320: Actuator
330: lower rotating body 332: ring
400: Bypass cable connection part
410: Rotating member 412: Connecting member
414: Rotating body 420: Housing
500: Bypass cable

Claims (10)

A clamp body 100 having a pair of fixing hooks 110 formed with a receiving groove 112 capable of receiving a power line (W) at the top; and
It is hinged between the pair of fixing hooks 110 and holds the power line (W) received in the receiving groove 112 when rotated downward, and the power line received in the receiving groove 112 when rotated upward. It is configured to include a top-down fastening hook 200 that releases the grip of (W),
The top-down fastening hook (200) is
Link coupling portion 220 formed at the top; and
A rotary link 230, the lower part of which is hinged to the link coupling part 220, coupled to be elastically supported rearward, and the upper part of which is connected to one end of the insulated lifting belt 10. Top-down fastening wire clamp for bypass cable head that allows safe work on indirect live wires.
According to paragraph 1,
The top-down fastening hook (200) is
A gripping protrusion (210) extending from the front end and protruding to have a width smaller than the gap between the pair of fixing hooks (110); capable of indirect live wire safety work, characterized in that it includes a. Top-down fastening wire clamp for bypass cable heads.
According to paragraph 2,
The clamp body 100 is
A bypass capable of indirect live wire safety work, which is formed at the lower front, and is formed to correspond to the gripping protrusion 210, and is configured to include a gripping groove 120 through which the gripping protrusion 210 is drawn in and out. Top-down fastening wire clamp for cable heads.
delete According to paragraph 1,
The top-down fastening hook (200) is
A torsion spring 240, one side of which is fixed to the inner front upper part of the link coupling portion 220, and the other side of which is fixed to the rear of the rotary link 230, to elastically support the rotary link 230 rearward. A top-down fastening wire clamp for a bypass cable head capable of indirect live wire safety work, characterized in that it consists of:
According to clause 5,
The rotating link 230 is
A link housing 232 whose lower portion is hinged to the link coupling portion 220 and a coupling groove 232a is formed at the upper portion; and
A fixing screw 234 whose lower part is coupled to the lower surface of the coupling groove 232a;
A detachable member 236 installed on the outer periphery of the fixing screw 234 so as to be positioned between the fixing screw 234 and the link housing 232; and
A detachable spring 238 is installed on the outer periphery of the fixing screw 234, the lower part of which is supported on the lower surface of the coupling groove 232a to elastically support the detachable member 236 in the upward direction. A top-down fastening wire clamp for a bypass cable head capable of indirect live wire safety work, characterized in that it consists of:
According to paragraph 1,
The top-down fastening wire clamp for the bypass cable head that allows safe work on indirect live wires is
A housing 310 hinged between the pair of fixing hooks 110 and positioned behind the top-down fastening hook 200,
An actuator 320, the lower part of which is coupled to the upper inner side of the housing 310 so as to be movable in the vertical direction, and the upper part of which is hinged to the rear of the top-down fastening hook 200, and
A release direction overload prevention clutch-type tightening device 300, which is coupled to the lower part of the housing 310 and includes a lower rotating body 330 that moves the operating body 320 in the vertical direction. A top-down fastening type wire clamp for bypass cable heads capable of indirect live wire safety work.
According to paragraph 1,
The top-down fastening wire clamp for the bypass cable head that allows safe work on indirect live wires is
A bypass cable connection portion 400 rotatably connected to the lower part of the clamp body 100; and
A top-down fastening type wire clamp for a bypass cable head capable of indirect live wire safety work, characterized in that it includes a bypass cable 500 connected in a rotatable state to the lower part of the bypass cable connection part 400. .
In the indirect live wire elastic connection method using a top-down fastening wire clamp for a bypass cable head capable of indirect live wire safety work according to any one of claims 1 to 3 and 5 to 8,
A work preparation process (S10) of preparing a bypass cable (500) with a top-down fastening wire clamp for the bypass cable head connected to the power side and the load side of the live power line (W);
A bypass cable connection process (S20) of elastically connecting a top-down fastening wire clamp for the bypass cable head to which the bypass cable 500 is connected to the bare power line (W) using an insulating stick for a live wire;
A jumper wire separation process (S30) of separating the jumper wires on both sides of the work section after bypass connecting the top-down fastening wire clamp for the bypass cable head to which the power line (W) and the bypass cable 500 are connected; and
After disconnecting the jumper wire, the main work process (S40) of performing diagonal work within the work section in a diagonal state;
After the main work is completed, a jumper wire connection process (S50) to sequentially connect the jumper wires on both sides of the work section for each phase;
Bypass cable separation process (S60) in which the top-down fastening wire clamp for the bypass cable head installed on the power line (W) is separated using an insulating stick for live wire work;
Top-down fastening method for bypass cable head for bypass cable head capable of indirect live wire safety work, characterized in that it includes a finishing process (S70) of removing the bypass cable (500) to which the wire clamp is connected and organizing the site. Indirect live wire elastic connection method using a top-down fastening wire clamp.
According to clause 9,
When transformer replacement and relocation work is performed uninterrupted using the uninterruptible transformer device 60,
The jumper wire separation process (S30) is
After connecting the top-down fastening wire clamp for the bypass cable head to which the power line (W) and the bypass cable 500 are connected, the transformer 50 is bypassed uninterruptedly using the uninterruptible transformer device 60. Separate the COS down line (41),
The main work process (S40) is
After disconnecting the COS lowering line (41), transformer replacement and relocation work are performed in a diagonal state.
The jumper wire connection process (S50) is
After this work process (S40), an indirect live wire elastic connection method using a top-down fastening wire clamp for a bypass cable head capable of indirect live wire safety work, characterized in that the COS down wire (41) is connected sequentially for each phase.