JP3380718B2 - Cable laying method, tow rope hanging tool used therefor, and utility pole detour device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable laying method for laying various cables aerially on a utility pole or the like, a tow rope suspending tool and a utility pole detouring device used therefor.

[0002]

2. Description of the Related Art The work of laying various cables such as power transmission cables and signal cables on utility poles, poles and the like is performed as follows. When suspending wires or existing cables are not laid, and when laying general cables that do not have the self-holding function (the parts that hold the cables are connected), as shown in Figs. 13 and 14. First, a suspension wire (steel stranded wire) 5 is installed between utility poles on which a branch line 50 for transmitting a lateral load to the ground and stabilizing the same is installed via an aerial work vehicle 52.
Tighten 3 (FIG. 13A). The suspension line 53 is
It is intended to support the cables during and after cable installation.

Next, a terminal pulley (gold wheel) 54 and a suspension line 53 are attached to predetermined utility poles 51a and 51d via an aerial work vehicle 52.
A pulley (gold wheel) 55 is attached to the middle utility pole 51c, and a tow rope 56 is passed through these pulleys 54, 55 (FIG. 13B). The terminal pulley 54 is for eliminating a problem caused by different angles at which the respective forces are applied when the rope unwinder and the traction machine are operated, which will be described later.

Next, a new cable 58 fed from the cable feeding device 57 is connected to the rear end of the tow rope 54, and the tow rope 56 is towed by the tow machine 59, whereby the new cable 58 is made into pulleys 54 and 55. It is laid between the electric poles 51 while passing (FIG. 14A). After that, the cable hanger 60 is attached to the suspension line 53 via the aerial work vehicle 52.
And the new cable 58 are attached so as to wrap around, and the terminal pulley 54 and the pulley 55 are removed (FIG. 14).
B). Then, the new cable 58 is laid between the electric poles 51a and 51d in parallel with the suspension line 53.

A case where a self-holding type cable is laid when the suspension wire or the existing cable is not laid will be described. First, as shown in FIG. 15, a terminal pulley (gold wheel) 54 is attached to an electric pole 51a, 51d on which a branch line 50 for transmitting and stabilizing a lateral load to the ground is stretched via an aerial work vehicle 52. , Pulley (gold car) 55 on the utility pole 51c in the middle
And pulling rope 56 through these pulleys 54, 55 (FIG. 15A).

Next, the self-holding type cable 61 fed out from the feeding machine 57 is connected to the rear end of the pulling rope 56, and the pulling rope 59 is pulled by the pulling machine 59 to pull the self-holding type cable 61 from the pulley 54. , 55 while laying (Fig. 15B). Next, the aerial work vehicle 52
While tightening the portion of the self-holding type cable 61 that holds the communication cable (not shown) via, the communication cable is tightly connected to each utility pole 51, and the terminal pulley 54 and the pulley 55 are removed. In this way, the self-supporting cable 61 is laid between the electric poles 51a and 51d.

In the case where there is an existing cable and a general cable having no self-holding function is to be laid, first, a terminal pulley (gold wheel) is attached to a predetermined electric pole through an aerial work vehicle, and further the existing cable and other cables are installed. Attach the pulley (gold wheel) to the telephone pole of, and pass the suspension line and tow rope through the pulley. This is Figure 1
This corresponds to the case where the suspension wire in 4A is replaced with an existing cable. Next, the suspension wire is tightly connected to each power pole.

Next, a new cable fed from the cable feeding machine is connected to the rear end of the tow rope, and the tow rope is towed by the tow machine to lay the new cable through the pulley. This is similar to the case of FIG. 14A. Next, through the aerial work vehicle, the cable hanger is attached so as to wrap the suspension wire and the newly installed cable, and the terminal pulley and other pulleys are removed. This is similar to the case of FIG. 14B. Thus, the cable is laid between the utility poles.

If there is an existing cable and a self-holding type cable is to be laid, first, a terminal pulley (gold wheel) is attached to a predetermined electric pole through an aerial work vehicle, and then the existing cable and another electric pole are connected. Attach the pulley (gold wheel) and pass the suspension line and tow rope through the pulley. This corresponds to the case where the suspension line in FIG. 14A is replaced with an existing cable.

Next, a new self-holding type cable that is unwound from the unwinder is connected to the rear end of the tow rope,
A new self-holding cable is installed by pulling a tow rope with a towing machine, passing through a pulley. In this case, the suspension wire in the case of FIG.
This is equivalent to replacing the existing cable with a new self-supporting cable. Next, while tightening the holding part of the self-supporting cable via the aerial work vehicle, while tightly connecting the communication cable to each utility pole, the terminal pulley,
Remove the other pulleys. Thus, the self-supporting cable is laid between the predetermined electric poles.

[0011]

However, in the above-mentioned conventional cable laying method, a dangerous work of previously attaching a pulley (gold wheel) to an electric pole, a suspension line or the like via a work vehicle at high places is forced. Also, because the cable was laid by pulling the tow rope through the new cable through the pulley, it was necessary to assist with an intermediate tractor when the cable was to be tensioned more than 200 kg. Moreover, the pulling force may cause damage to the cable. Moreover, the conventional cable laying method has an inefficiency that only one cable can be laid.

The present invention has been proposed to solve the above-mentioned problems, and avoids the danger of working at height, and lays a large number of cables at the same time by a simple method without giving a strong tension to the cables. It is an object of the present invention to provide a cable laying method, a tow rope suspending tool used for the method, and a utility pole bypass device.

[0013]

In order to achieve the above-mentioned object in the present invention, the method of laying a cable according to claim 1 uses a suspension wire stretched between utility poles or a cable instead of the suspension wire and through an auxiliary means. In the cable laying method of laying a new cable between required electric poles, the tow ropes drawn out from the tow rope unwinder are the auxiliary means and are used as a plurality of tow rope suspending devices that can be partially opened and closed. A plurality of new cable suspenders for holding the new cable that has been unwound from the cable unwinding machine and also has a portion for locking the new cable as the auxiliary means and a cable grip portion for gripping the new cable. Perform the first step of suspending the tow rope with the tow rope, and then attach the tow rope suspending tool to the suspension line or a cable in place of it. A second step of movably straddling the tow rope, and then pulling the tow rope in the cable laying direction to continuously connect the plurality of tow rope suspenders connected to each other by connecting ropes. Perform a third stage work of moving the suspension cable or a cable in place of it, removing the tow rope from the tow rope suspending tool and fixing and laying the new cable on the telephone pole, and finally,
It was decided to perform the fourth stage work of towing the connecting rope and collecting the plurality of tow rope suspending tools.

The cable laying method according to claim 2 is
The cable laying method according to claim 1, wherein the first-stage work, the second-stage work, and the fourth-stage work are connected to a suspension wire stretched between the electric poles or a cable replacing the electric poles. We decided to do it on the ground using a branch line that stably stands on the ground.

Further, in the cable laying method according to claim 3, in the cable laying method according to claim 1, the work of the first stage and the work of the second stage are made substantially horizontal to the branch line via a support base. It was decided to do it on the attached set wire.

Further, in the cable laying method according to claim 4, in the cable laying method according to claim 1, means for pulling the tow rope in the cable laying direction in the work of the third step is manually pulled by a machine. It was decided to selectively use the electric traction machine and the electric traction machine.

On the other hand, the tow rope suspending device according to claim 5 is the tow rope suspending device used in the cable laying method according to any one of claims 1 to 4, wherein the suspending wire or a cable replacing the suspending wire is used. A rotating body that is movable, a frame body that holds the rotating body, a hanging portion that is connected to the frame body and that can be partially opened and closed, and a traction member that is located under the hanging portion and is pulled. A rope gripping portion that is capable of gripping and releasing the rope, a temporary suspending tool that temporarily suspends the tow rope gripped by the rope gripping portion on the suspension line or a cable that replaces the suspending wire, and the temporary suspending tool is operated to pull the rope. An operation tool for pulling the rope out of the hanging portion.

According to a sixth aspect of the present invention, in the tow rope suspending tool according to the fifth aspect, the tow rope suspending tools are connected to each other by a connecting rope.

Further, the tow rope suspending device according to claim 7 is the tow rope suspending device according to claim 5, wherein the tow rope suspending portion at the tip is a self-propelled device that can be remotely controlled. did.

The utility pole detour device according to claim 8 is
The utility pole detouring device used for the tow rope suspending device according to any one of claims 2 to 4, wherein the branching member is provided on the suspension line or a cable replacing the suspension line and a branch line that stably erects the utility pole on the ground. And a cable changing cable that is stretched through the cable changing device and that temporarily guides the tow rope suspending tool by the branching member.

[0021] The utility pole bypass device according to claim 9 is the utility pole bypass device according to claim 8, wherein a plurality of arm members for separating the track changing cable stretched through the track changing member from the utility pole. It was equipped with.

Further, the utility pole detouring device according to claim 10 is the utility pole detouring device according to claim 9, wherein the cable is provided on the outer circumference of the utility pole and has a plurality of rotating bodies for smoothly moving the tow rope suspending device. A suspension device movement aid was provided.

[0023]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. 1 and 2 show a state during cable laying work, and are schematic views of a cable pulling start point and a cable pulling end point.

Starting point of cable pulling (FIG. 1A is a side view,
A cable feeding machine 1 and a tow rope feeding machine 2 are installed in (B is a plan view). Cable feeding machine 1
Is installed because the number of new cables 3 is two. One tow rope 4 unwound from the tow rope unwinder 2 is passed through a tow rope suspending tool 5 as described later, and to the tow rope 4 via a new cable suspending tool 34 attached to the tow rope 4. Figure 1
The two new cables 3 are suspended as shown in 0 (first stage work).

Next, with the two new cables 3 suspended from the tow rope 4, the tow rope suspending tool 5 is laid over the suspension line 8 stretched in advance (second step work). . Although this state is shown in FIG. 3 (in FIG. 3, the number of new cables 3 is three), from the ground to the suspension line 8 stretched between utility poles, and from the suspension line 8 To move the tow rope suspending tool 5 to the ground,
A branch line 7 stretched to stabilize the power pole 6 is used. 1 and 2 show a state in which the tow rope suspending tool 5 is moved using the branch line 7.

If these operations are performed on the set wire 33 attached to the branch line 7 stretched for stabilizing the electric pole 6 via the support base 32, the workability is further improved. Become. As described above, the first stage work and the second stage work can be performed on the ground, and the work is safe and efficient. In addition, the place where the first stage work and the second stage work are performed is a work zone surrounded by a color cone or the like so as not to pose a danger to the surroundings.

In this way, one tow rope suspending tool 5 is laid over the suspending wire 8 from the setting wire 33, and then the tow rope 4 is towed in the wire laying direction (arrow direction), so that one tow rope suspending tool is provided. 5 is moved by a predetermined distance, and the next tow rope suspending tool 5 is laid over the suspension line 8 and moved in the same manner. FIG. 1 shows a state in which three tow rope suspenders 5 are moving while suspending the new cable 3 (the other one is still on the setting wire 33). In this case, the means for pulling the tow rope 4 may be any means such as tow by human power, tow using a mechanical tow, or tow using an electric tow. In addition, the tip of the tow rope suspending tool 5 is a self-propelled device that can be remotely operated, and the tow rope suspending tool 5 at the tip is remotely operated without using the above-described tow means. 4 may be pulled.

Further, since the plurality of tow rope suspending tools 5 hold the tow rope 4, the tow rope suspending tools 5 do not move on the tow rope 4 and remain on the suspending line 8 while maintaining a distance between them. It is designed to move, but Fig. 2
In consideration of the time of collection, the tow rope suspending tools 5 are connected by the connecting rope 9 as shown in FIG. In this way, connecting the tow rope suspenders 5 to each other is particularly useful when guiding the following tow rope suspenders 5 when the tip tow rope suspenders 5 are self-propelled devices that can be operated remotely. is necessary.

When the two new cables 3 are laid by repeating the above-mentioned work, the new cables 3
The tip of the is fixed to the utility pole 6b (work of the third stage). Although not shown, the new cable 3 has a predetermined utility pole 6
It is also fixed to each power pole between a and 6b. After laying the new cable 3 in this manner, the tow rope 4 is removed from the hanging portion 12 of the tow rope suspending tool 5 and temporarily suspended on the suspending wire 8 via the temporary suspending tool 15 as shown in FIG. 4B as described later. Then, the operation of recovering the tow rope suspending tool 5 from the tip end is performed in sequence (operation of the fourth stage). Therefore,
Of the new cable suspension devices, the new cable suspension device 3
4 may be left as it is, and then, as shown in FIG. 10, the pulling rope 4 may be replaced with the suspension line 8 and a cover may be attached to the new cable suspending tool 34 as necessary. FIG. 2 shows a state in which the tow rope suspending tool 5 is recovered by towing the connecting rope 9. Also in this case, similarly to the start of laying the new cable 3, the suspension line 8 extending from the suspension line 8 to the ground uses the branch line 7 stretched to stabilize the electric pole 6.

According to the cable laying method performed as described above, the work of attaching the suspension line 8 and the tow rope 4 of the tow rope suspending device 5, the work of gripping the new cable 3, and the recovery of the tow rope suspending device 5 are performed. Work can be performed on the ground, and work safety can be improved. In addition, when laying the new cable 3,
Since the traction tension does not act on itself, there is no need to manage the traction tension. Also, since the new cable 3 is simply suspended, it is possible to suspend and lay a large number of multiple cables at the same time.

In comparison with the conventional cable laying work, the work at a high place is only a part of the work of fixing the cable to the electric pole and the installation of a cable track changing device which will be described later, and can be greatly reduced. Further, it is not necessary to previously attach the gold wheel to the suspension line or the like. Further, since the diameter of the rotating body 5a of the tow rope suspending tool 5 is configured to be large as will be described later, it is possible to carry out the towing operation with a small towing force.

FIG. 4 shows a tow rope suspending tool 5 of the new cable suspending device used in the above-mentioned cable laying method. 4A is a front view, B is a side view, and C is a rear view. FIG. 5 is a schematic perspective view showing the operation of the tow rope suspending tool 5. As shown, the large-diameter rotating body 5a is
The frame body 10 is rotatably held around a shaft center 11. The frame body 10 has a front frame body 10a and a rear frame body 10b, and the suspension wire 8 passes between both frame bodies 10a and 10b, and the rotating body 5 is provided.
It is designed to be joined to the receiving groove of a.

Further, the hanging portion 1 is provided at the center of the lower portion of the frame body 10.
2 is attached. This hanging part 12 is also substantially L with a hook-shaped front side hanging part (tow rope receiving part) 12a.
It has a character-shaped rear side suspending portion (rotating portion) 12b, of which the rear side suspending portion 12b is rotatable about a support shaft 13 as a fulcrum, as shown in FIG. 4C. It is designed to operate when being put in and taken out from the hanging portion 12. FIG. 5 shows a rotating state of the back side hanging portion 12b. Also, as shown in FIG.
A rope gripping portion 14 and a temporary suspending tool 15 for temporarily suspending the gripped tow rope 4 on a suspending wire 8 are provided inside, and an operating tool 16 for operating the temporary suspending tool 15 is further provided in the suspending portion 1.
2 is projected from the inside to the outside.

Therefore, in order to hold the tow rope 4 on the suspending portion 12, the back side suspending portion 12b is rotated to the released state as shown in FIGS. 4C and 5B, and the front side suspending portion 12a is moved to the suspending portion 12. Introduce 4. After that, the back side suspending portion 12b is rotated to return to the original state as shown in FIGS. 4A and 5A, and the tow rope 4 is held by the rope holding portion 14. In this case, the tow rope 4 is in a temporarily suspended state as shown in FIG. 4B by the temporary suspending tool 15 connected to the rope gripping portion 14.

When removing the tow rope 4 from the suspending portion 12, the back side suspending portion 12b is turned to the released state as shown by phantom lines in FIGS. 4C and 5B, and operated as shown in FIG. 4B. The temporary suspending tool 15 is moved from the solid line position to the imaginary line position via the tool 16 to suspend the tow rope 4 from the suspending section 12.
Go outside. When the tow rope suspending tool 5 grips the tow rope 4 at the start of cable tow, and after the cable is laid, the tow rope 4 is removed and the tow rope suspending portion 5
In order to guide the wire to the utility pole branch line, the back side hanging portion 12b of the hanging portion 12 is operated to be in the released state as described above.

FIG. 6 is a perspective view of the rope grip portion 14, in which the main bodies 14a and 14b are divided into two and opened and closed as indicated by phantom lines. Then, the tow rope 4 is inserted into the hole 14c formed when the main body is closed, and then the tow rope 4 in the hole 14c is fastened by the band 14d so as to be tightened. Therefore, the main bodies 14a and 14b will be made of an elastic material. 7A and 7B are a front view and a perspective view of a front side suspension portion (traction rope receiving portion) 12a of the suspension portion 12. The rope gripping portion 14 is located in the cutout portion at the center of the lower portion.

FIG. 8A shows a temporary suspender 15 and a rope grip portion 14.
8B is a perspective view showing a relationship between the temporary suspending tool 15 and the rope gripping portion 14, and FIG. FIG. 9A is a front view showing the operation tool 16, and FIG. 9B is a perspective view showing the relationship between the operation tool 16 and a part of the front side hanging portion 12a.

FIG. 10 shows the use state of the new cable suspending tool 34, and A is a front view of the state where the new cable 3 is suspended. Although B is a side view, it shows just before connecting the new cable suspending tool 34 to the suspension line 8 and just before connecting it to the new cable 3, and the key portions of the new cable suspending tools 34a and 34b are engaged with each other. Have become tightly connected.

C shows an embodiment in which two or more new cables 3 are suspended. The method of suspending the new cable 3 is not limited to this. For example, a plurality of cables may be bundled in one holding portion and the cables may be tightly connected by their own weight. Incidentally, as shown in the figure, if the protective member 35 is interposed in the holding portion in order to protect the newly installed cable 3, it is possible to protect especially when the newly installed one is an optical communication cable or the like.

FIG. 11 shows a cable track changing device (track changing member) 17, which temporarily changes the track of the tow rope 4 when circumventing a utility pole. The cable track changing device 17 includes a tow rope insertion member 18, a branch member 19, and an extension member 20. As for the tow rope insertion member 18, as shown in FIG. 11B, the tow rope insertion pipe 21 and the fixing fitting 22 are integrally provided. In the branch member 19, as shown in FIG. 11C, a fixing member 25 is integrally provided on a track portion 24 having a connecting rod 23. As shown in FIG. 11D, the extension member 20 has a fixing fitting 28 integrally provided on a track portion 27 having a detouring rope (track changing cable) 26. These members are joined together, and bolts 29 are screwed into the fixing fittings to fix them. FIG. 11A shows the cable track changing device after connection and fixation, and as shown in FIG. 12, it will be arranged at two positions on both sides of the electric pole 6 in the cable laying direction.

The cable track changing device 17 having the above-described structure stretches the detouring rope 26 through the cable track changing device 17 in advance when the suspension line 8 bypasses the utility pole 6 as shown in FIG. The traction rope suspending tool 5 that has been installed and has moved on the suspension line 8 is temporarily guided to the detour rope 26, and then returned to the suspension line 8 again. It should be noted that the cable track changing device 17 will be installed using a work vehicle at high altitude.

When the suspension line 8 is detoured around the electric pole 6, a plurality of arm members 30 are required to keep the detouring rope 26 away from the electric pole 6. Furthermore, when moving on the detour rope 26, the tow rope suspending tool 5
It is effective to provide a cable suspension device movement assisting tool 31 so that the user can smoothly move around the telephone pole 6. FIG. 12B shows a cable suspension device movement assisting tool 31 formed by connecting a plurality of rotating bodies in series. The configuration of the cable suspension device movement assisting tool 31 is not limited to this, and may be any configuration such as a plurality of bearings provided in a predetermined area. In any case, the cable suspension device movement aid 31
The provision of is effective in reducing the radius of curvature of the bypass route.

[0043]

As described above, according to the present invention, only a part of work at a high place is required when laying a cable, and safety is dramatically improved. Moreover, since the cable itself is laid without being pulled, a strong tension is not applied to the cable. Also, since the new cable suspending tool holds the cables together, a large number of cables can be laid simultaneously.

[Brief description of drawings]

FIG. 1 is a side view and a plan view of a cable pulling start point.

FIG. 2 is a side view of a cable towing end portion.

FIG. 3 is a perspective view showing a cable suspended state.

FIG. 4 is a front view, a side view, and a rear view of a tow rope suspending device (new cable suspending device).

FIG. 5 is an explanatory view showing a rotating state of a back side hanging portion.

FIG. 6 is a perspective view of a rope grip portion.

FIG. 7 is a front view and a perspective view of a front suspension unit.

FIG. 8 is a perspective view showing a relationship among a temporary suspending tool, a rope gripping portion, and an operating tool.

9A and 9B are a front view and a perspective view showing a relationship between an operation tool and a front suspension portion.

10A and 10B are a front view and a side view showing a usage state of a new cable suspending tool (new cable suspending device).

11A and 11B are a plan view of a component member of the cable track changing device and a plan view of a state in which the component member is fixedly coupled.

FIG. 12 is a perspective view showing a usage state of a cable track changing device and an arm member.

FIG. 13 is an explanatory diagram showing a conventional working state.

FIG. 14 is an explanatory diagram showing another conventional working state.

FIG. 15 is an explanatory diagram showing another conventional working state.

[Explanation of symbols]

1 cable feeding machine 2 Tow rope unwinder 3 cables 4 tow rope 5 Tow rope suspension 6a utility pole 7 branch lines 8 suspension lines

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) H02G 1/02

Claims (10)

(57) [Claims] Claim: What is claimed is: 1. In a cable laying method in which a suspension line stretched between utility poles or a cable replacing the cable is used and a new cable is laid between required utility poles through auxiliary means, the cable is fed from a tow rope unwinder. a plurality of the pulling rope is openable part each said auxiliary means der
While holding the tow rope suspending tool , also use the new cable unwound from the cable unwinder.
Each of the above-mentioned auxiliary means includes a lock portion for a tow rope and a new installation.
A plurality of new cables having a cable grip for gripping the cable
Performing the first step of suspending the tow rope with the installed cable suspending tool, and then performing the second step of suspending the tow rope suspending tool over the suspending wire or a cable replacing it. Then, pull the tow rope in the cable laying direction ,
Suspension of a plurality of tow ropes connected to each other by connecting ropes
The suspending device is continuously moved on the suspension line or a cable replacing the suspension, and the suspending device is pulled from the suspending rope suspending device.
Remove the rope complete the third step of laying and fixing the new cable to the utility pole, finally, the plurality of traction rows towing the connecting rope
A cable laying method, characterized by performing a fourth stage of work for collecting the hanging device . 2. The first stage work, the second stage work,
And the work in the fourth stage is performed on the ground by using a suspension line stretched between the utility poles or a branch line which is continuous with a cable instead of the suspension line and stably stands the utility pole on the ground. The cable laying method described in 1. 3. The cable according to claim 2, wherein the work of the first stage and the work of the second stage are performed on a set wire attached to the branch line substantially horizontally via a support base. Laying method. Wherein means for pulling the pulling rope similar operations in the third step in the cable laying direction, and wherein the manual traction, mechanical traction machine, in which using an electric traction motor selectively The cable laying method according to claim 1. 5. A rotary member to be movable on the suspension wire or cable in place of this, a frame body for holding the rotating member, hanging is openable part Rutotomoni connected to the frame and lowering unit, and the rope gripping portion that is freely grip release the tow rope with located at the bottom of this hanging element, the traction rope is gripped by the rope gripping portion the
Temporary suspending tool for temporarily suspending the suspension wire or a cable replacing it
And operating this temporary suspender to attach the tow rope to the suspending section.
And having a an operation tool let out, any of claims 1 to 4
Suspension of tow rope used for cable laying method
Ingredient Wherein said traction rope hanger each other characterized that you have been connected by a connecting rope, pulling rope hanger according to claim 5, wherein. 7. The tow rope suspending device at the tip is a self-propelled device that can be remotely controlled.
5 tow rope hanging instrument described. Wherein said catenary or cable 及 the alternative
And a pole installed on the branch line that stably erects the pole on the ground.
Also, a cable track changing device having a branching member, and the cable pulling device stretched through the cable track changing device.
The rope suspension is temporarily guided by the branch member.
Characterized in that it comprises a track change cable that, the, one of claims 2 to 4
A utility pole detouring device used in the cable laying method as described above . 9. via the track change member Ru is stretched
9. The electric wire according to claim 8, further comprising a plurality of arm members for separating the track changing cable from the electric pole.
Pillar detour device . 10. The tow rope provided on the outer periphery of a power pole.
Characterized in that it comprises the Quai <br/> Buru suspension device moving subsidy tool having a plurality of rotating bodies to facilitate the movement of the hanger,
The utility pole bypass device according to claim 9 .