JP2521588Y2 - Jumper sleeve guide for indirect live wire construction - Google Patents

Description

[Detailed description of the device]

[0001]

INVENTION The present invention relates to a jumper pickpocket for attaching the jumper sleeve cover for insulating covering connection portions of the wire of the main line and the jumper wire of the high voltage overhead power line
Tube guide (hereinafter sometimes abbreviated as sleeve guide)
Regarding ) .

[0002]

2. Description of the Related Art Conventionally, work has been performed without power failure as much as possible.
I was asked to carry out power distribution work using the so-called uninterruptible construction method.
I have. In this uninterruptible construction method, a temporary switch is attached to a utility pole.
And bypass the power transmission path, disconnect the jumper wire,
After the construction is completed, jumper the terminal of the cut jumper wire
It is connected to the main line via a sleeve. Also, this main line
The jumper sleeve cover at the connection between the
It is fitted with an insulation coating to prevent electric shock accidents.
When the jumper sleeve cover is attached to the connection portion between the main wire of the electric wire and the jumper wire for insulation coating, the cut end 102 is formed in the lower portion 100 as shown in FIG. 19 at the opening end of the cylindrical jumper sleeve cover. By attaching the trumpet-shaped sleeve guide 104, the opening end of the jumper sleeve cover is reinforced and smoothed so that the electric wire can be easily inserted. Then insert the wire into the jumper sleeve cover by hand , then
After mounting the jumper sleeve cover at a predetermined position, the projecting end 106 of the sleeve guide 104 is pulled by hand to open the notch 102 and remove the sleeve guide 104 from the electric wire.

[0003]

[Problems to be solved by the invention] However, as the supply and demand of electric power have increased sharply, the demand for quality such as the demand for improvement of supply reliability has further increased, and it is even more indispensable to carry out power distribution work using the uninterruptible construction method. It has become to. Therefore, nothing
Even in the power outage method, Iwayu works with indirect live-line tools
The indirect live-line construction method is being implemented.

[0004] In the case of carrying out power distribution work in a live-line state in which electricity is being supplied to the electric wires in this manner, work is performed with an indirect live-line tool so as to avoid electric shock. However, the conventional sleeve guide 104 as shown in Fig. 19 is used. Therefore, it was difficult to attach the jumper sleeve cover with an indirect live-wiring tool without directly using hands. That is, if the opening diameter of the jumper sleeve cover is too large with respect to the diameter of the electric wire, a large gap is created between the jumper sleeve cover and the electric wire, which is dangerous and the position of the jumper sleeve cover is displaced. The opening diameter of is approximately the same as or slightly smaller than the diameter of the wire so that it can be attached and adhere to the wire. For this reason, the sleeve guide 104 is provided at the open end of the jumper sleeve cover.
When the sleeve guide 104 is attached, the sleeve guide 104 is adjusted to match the opening diameter of the jumper sleeve cover, and
Therefore, as shown by the arrow in FIG. 19, the diameters of the openings overlap with each other to reduce the diameter, and in order to insert the wire into the wire, a force must be applied to open the opening diameter. It was extremely difficult to perform this work with an indirect live-wire tool without using direct hands.

Accordingly, the present invention is to provide an indirect hot method jumper Sri <br/> Bugaido to facilitate the above-mentioned problems are eliminated, attached at indirect hot tool the jumper sleeve cover to wire To aim.

[0006]

This invention indirect hot method jumper sleeve guide Means for Solving the Problems] is spread forcibly push the ends of the jumper sleeve cover, indirect hot method to facilitate inserting the jumper sleeve cover to wire in use jumper sleeve guide, tubular body and a slit opening of the electric wire withdrawal was continuously provided et is between both open ends of the body, the opposite edge of the slit opening One of
It is formed on one edge and locks the other edge
Of the other end edge portion of the opening
On the main body and the receiving portion that allows the book to move in the direction
And a projecting end which is provided in a plane orthogonal to the axis of the body and which exerts a force at the time of removal.

[0007]

The slit-shaped opening provided in the jumper sleeve guide for the indirect live wire construction method of the present invention has a receiving portion for one edge portion formed on the other edge portion. This receiver
The other edge by locking the other edge.
The edge cannot be moved in the direction of diameter reduction and can be moved in the direction of opening
I do. For this reason, even when the jumper sleeve cover is attached to the open end and pushed, the other edge is locked to the one edge by the receiving portion, and a constant inner diameter can be always maintained. There is no diameter. Therefore, in order to install the jumper sleeve cover on the open end of the jumper sleeve cover to ensure that the opening diameter is always wide and to facilitate the insertion of the electric wire,
It can be easily attached to an electric wire with an indirect live wire tool.

Further, when the jumper sleeve guide for the indirect live-wire construction method is removed after the jumper sleeve cover is mounted at a predetermined position on the electric wire, a force is applied by the projecting end in a direction opposite to the jumper sleeve cover, After being released from the jumper sleeve cover, by further applying a force to the electric wire, the slit-shaped opening portion can be easily opened and separated from the electric wire. At this time, the projecting end has a planar shape orthogonal to the axis of the main body.
Since it is installed in the jumper sleeve cover
Escape the jumper sleeve guide for the indirect live wire method.
It is possible to satisfactorily apply the force for the purpose. Also, the receiving part
Locks the other edge so as to be movable in the opening direction.
The jumper sleeve guide for the indirect live wire method
The work of separating from the line can be performed very easily. Obedience
Then remove the jumper sleeve guide for the indirect live wire construction method.
It is extremely easy to remove.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to further clarify the configuration and operation of the present invention described above, preferred embodiments of the present invention will be described below. The sleeve guide 1 of this embodiment is shown in FIGS. 1, 2 and 3.
Indicates. 1 is its front view, FIG. 2 is its plan view, and FIG. 3 is its left side view.

The sleeve guide 1 has a long cylindrical body 3 having an inner diameter larger than that of the jumper wire 33 and the main wire 35 to be mounted. The left circular end 5 is flared like a trumpet, and a rectangular projecting end 7 is formed downward. The protruding end 7 is formed with a concave-convex portion 9 for slip prevention so that it can be easily held by the hot stick tool 39 as described later.

A slit-shaped opening 15 is formed in the upper portion 11 from the right circular end portion 13 to the left circular end portion 5 so as to be continuously inserted and removed in a straight line. This slit-shaped opening 1
A partially enlarged view P of No. 5 is shown in FIG. Slit-shaped opening 15
Has a U-shaped receiving portion 15b formed on one edge portion 15a, and the other edge portion 15c can be fitted therein or easily detached.

Next, a jumper sleeve cover 17 to be attached to an electric wire using the sleeve guide 1 of this embodiment will be described. The jumper sleeve cover 17 is shown in FIGS. 5, 6, 7, 8 and 9. 5 is its plan view, FIG. 6 is its side view, FIG. 7 is its AA cross-sectional view, FIG. 8 is its BB end view, and FIG. 9 is its CC end view.

The jumper sleeve cover 17 attached here has the same black color as that of the electric wire, and has a long cylindrical shape with a streamlined shape along the electric wire. Both ends 19 are tapered and are formed in a bellows-like shape so that the sleeve guide 1 of the present embodiment can be easily inserted. The outermost portion 19a is slightly smaller than the diameter of the electric wire to be attached, and when attached to the electric wire, it comes into close contact with the electric wire.

Four angular tool stop projections 25 are integrally formed on the outer surface 23 at a predetermined distance from the central portion 21 to the right and to the left (a total of eight) along the circumference at 90 ° intervals. (Fig. 8). As will be described later, this tool-stopping projection 25 is an indirect live-wire construction tool, that is,
It engages with the hot stick tool 31 and facilitates the work of gripping and mounting with the hot stick tool 31.

Further, three triangular pyramid-shaped fitting protrusions 29 (six in total) are provided in the inside 27 from the end 19 on the right and left of the tool-stopping protrusion 25 at intervals of 120 °. It is integrally provided along with (FIG. 9). As will be described later, the fitting protrusion 29 is fitted at a position to be attached (a connecting portion between the main wire 35 of the electric wire and the jumper wire 33) and prevents the jumper sleeve cover 17 from being displaced from the position after the fitting. .

Next, the procedure for attaching the jumper sleeve cover 17 as described above to the connecting portion between the jumper wire 33 and the main wire 35 by the sleeve guide 1 of this embodiment will be described. First, as shown in FIG. 10, the sleeve guide 1 is inserted into both ends 19 of the jumper sleeve cover 17. At this time, the diameter of the sleeve guide 1 is larger than the jumper wire 33 and the main wire 35, and thus larger than the opening diameter of the outermost end portion 19a of the end portion 19 of the jumper sleeve cover 17, as shown in FIG. Push the end 19 of the jumper sleeve cover 17 in with your hand h,
In that state, the sleeve guide 1 is inserted from the circular end portion (the right circular end portion 13 in FIG. 1) on the side without the protruding end 7. And
By rotating and removing both,
End 1 of the jumper sleeve cover 17 as shown in FIG.
Do not let 9 go inside. At this time, the sleeve guide 1 needs to be expanded to the fitting protrusion 29, so it is confirmed that the jumper sleeve cover 17 is bulged outward by the fitting protrusion 29. Further, the slit-shaped opening 15 of the sleeve guide 1
(That is, the receiving portion 15b of the one edge portion 15a)
In the state where the other edge portion 15c is fitted and inserted). If the sleeve guide 1 is attached to the jumper sleeve cover 17 for a long time, the end portion 19 of the jumper sleeve cover 17 expands and spreads. The jumper sleeve cover 1 will not be attached to the jumper wire 33 and the main wire 35.
The sleeve guide 1 is attached to the sleeve 7. (Therefore, it is preferable to avoid mounting the sleeve guide 1 at the time of storage or in advance.) Secondly, the central portion 21 of the jumper sleeve cover 17 having the sleeve guide 1 attached to both ends 19 is used as the hot stick tool 31. And hold
As shown in, the jumper sleeve cover 17 is inserted from the sleeve guide 1 into the jumper wire 33 that has been stripped. Then, it is moved to a position where it does not interfere with the work. At this time, the sleeve guide 1 of the present embodiment always has a diameter larger than that of the jumper wire 33 because the receiving end 15b of the one edge 15a does not overlap the other edge 15c in the slit-shaped opening 15. Maintain and therefore the end 1 of the jumper sleeve cover 17
9 can be secured widely, and the jumper wire 33 can be smoothly inserted into the jumper sleeve cover 17. Further, since the jumper sleeve cover 17 is provided with the tool stopping protrusion 25, the hot stick tool 31 is engaged by the tool stopping protrusion 25 and does not slip even when a strong force is applied, so that the jumper sleeve cover 17 can be grasped well. The jumper sleeve cover 17 can be moved by moving the jumper sleeve cover 17.

Third, as shown in FIG. 14, after connecting the jumper wire 33 and the main wire 35 with a sleeve fitting 37,
The sleeve guide 1 on the jumper wire 33 side of the jumper sleeve cover 17 is removed. In this method, as shown in FIG. 15, first, the projecting end 7 of the sleeve guide 1 is held by a hot stick tool 39 different from the hot stick tool 31 holding the jumper sleeve cover 17,
The sleeve guide 1 is displaced toward the jumper wire 31 side in parallel with the jumper wire 31 to cause the sleeve guide 1 to escape from the jumper sleeve cover 17 (A), and then pulled down right below (B). At this time, the protruding end 7 is a sleeve guy.
Since it is provided in a plane shape orthogonal to the axis of the sleeve 1 and the uneven portion 9 for preventing slippage is formed on the surface, the hot guide tool 39 can hold the sleeve guide 1 smoothly without slipping. . The projecting end 7 (lower part) is provided on the opposite side of the main body 3 to the slit-shaped opening 15 (upper part 11) , and the receiving part 15b opens the end edge part 15c.
Since it is locked so as to be movable in the mouth direction, the slit-shaped opening 15 of the sleeve guide 1 is easily opened by holding the protruding end 7 with the hot stick tool 39 and pulling it down, so that it can be separated from the jumper wire 33. Can be made.

Fourthly, the jumper sleeve cover 17 is moved to the main line 35 side by the hot stick tool 31 (the work of inserting the jumper sleeve cover 17 into this main line 35 is also performed by the sleeve guide 1 of this embodiment in the same manner as above. It can be done well), the bare wire 33 formed between the sleeve fitting 37 and the covering material 33a of the jumper wire 33
The fitting protrusion 29 of the inside 27 of the jumper sleeve cover 17 is fitted into the left recess 41 (see FIG. 14) of b. The fitting is confirmed from the fact that it does not move even if it is moved to the left or right, with the feeling of being stuck. Here, the jumper sleeve cover 17 does not move easily due to this fitting.

Fifthly, as shown in FIG. 16, the sleeve guide 1 on the main line 35 side is removed by the hot stick tool 39 in the same manner as described above, and is formed between the sleeve fitting 37 and the covering material 35a of the main line 35. and right recesses 43 of the bare wire 35b Ru the fitting protrusion 29 is fitted (see FIG. 14).

Finally, as shown in FIG. 17, the jumper sleeve cover 17 is mounted at an appropriate position, and the fitted state of the jumper sleeve cover 17 is confirmed to complete the work. The endmost portion 19a is a jumper wire 3
3 and the main line 35 in close contact with each other, and is mounted in a gentle streamline shape. Here, as shown in FIG. 18, in the jumper sleeve cover 17, the fitting protrusion 29 has a left recessed portion 41 of the connecting portion.
Also, since it fits in the right recess 43, it does not come off from the position where it should be attached.

According to the above-described embodiment, in the slit-shaped opening 15 of the sleeve guide 1, one edge end portion 15a is provided with the receiving portion 15b of the other edge end portion 15c. Cover 17
Even when it is attached to the end portion 19 of the, the diameter reduction was prevented.
Therefore, it has become possible to easily attach with a hot stick tool without using hands directly. Therefore, it is possible to work by the indirect live-line construction method without power failure. Also,
With the conventional sleeve guide, in order to make it difficult to insert the jumper sleeve cover into the jumper wire 33 and the main wire 35, the left recessed portion 41 and the right recessed portion of the connecting portion between the main wire 35 and the jumper wire 33 are inserted into the jumper sleeve cover. Although it was not possible to provide the fitting protrusion 29 for fitting to the connector 43, the sleeve guide 1 according to the present embodiment can also spread the fitting protrusion 29. Using 17 makes it possible to ensure the attachment.

The shape, size, position and number of the receiving portions 15b are determined so that the other edge portion 15c can be moved in the opening direction.
Abolish Rukoto can, if thereby reduced in diameter, is not limited to this embodiment, various jumper sleeve cover 1
Appropriate ones conforming to 7 can be applied. Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and it goes without saying that the present invention can be implemented in various modes without departing from the gist of the present invention.

[0023]

As has been described above devised], according to the indirect hot method jumper sleeve guide of the present invention, easily attached to the wire a yellow jumper sleeve cover at indirect hot tool, also after installation work, jumpers Sleeve guide self
It has an excellent effect that the body can be easily removed with an indirect hot-line tool .

[Brief description of drawings]

FIG. 1 is a front view showing a sleeve guide of the present embodiment.

FIG. 2 is a plan view thereof.

FIG. 3 is a left side view thereof.

FIG. 4 is a partially enlarged view thereof.

FIG. 5 is a plan view showing a jumper sleeve cover attached to an electric wire using the sleeve guide of the present embodiment.

FIG. 6 is a side view thereof.

FIG. 7 is a sectional view taken along line AA.

FIG. 8 is a sectional view taken along line BB.

FIG. 9 is a sectional view taken along the line CC.

FIG. 10 is an explanatory diagram of a first step showing a procedure of attaching the jumper sleeve cover to a connecting portion between the main line and the jumper line.

FIG. 11 is a partially detailed view thereof.

FIG. 12 is a partial detailed view thereof.

FIG. 13 is an explanatory diagram of the second step.

FIG. 14 is an explanatory diagram of the third step.

FIG. 15 is an explanatory view of the third step.

FIG. 16 is an explanatory diagram of the fifth step.

FIG. 17 is an explanatory diagram showing a state in which the attachment is completed.

FIG. 18 is an explanatory diagram showing a state in which the jumper sleeve cover is fitted in the connection portion.

FIG. 19 is an explanatory view showing a conventional sleeve guide.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Sleeve guide, 3 ... Main body, 5 ... Left circular end, 7 ... Projected end, 9 ... Uneven portion, 11 ... Upper part, 13 ... Right circular end , 15 ... Slit-shaped opening, 15a ... One edge, 15b ... Receiving part,
15c ... other edge part, 17 ... jumper sleeve cover, 25 ... tool stopping projection, 29 ... fitting projection, 31, 39 ... hot stick tool, 3
7 ... Sleeve fitting, 33 ... Jumper wire, 35
... main line, 41 ... left recess, 43 ... right recess.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Minoru Yanagishima 4-55, Higashimizukiri-cho, Kita-ku, Nagoya-shi, Aichi 2 Ayo Sangyo Co., Ltd. (56) References U) Actual Kaihei 4-131127 (JP, U)

Claims (2)

(57) [Scope of utility model registration request] 1. A jumper sleeve guide for an indirect live-wiring method for forcibly expanding the end portion of the jumper sleeve cover to facilitate insertion of the jumper sleeve cover into an electric wire, wherein a tubular body and both openings of the body. a slit-shaped opening for the wire withdrawal was found provided continuously between the ends, one of the edges of the opposite edges of the slit opening
Is formed on the other end by locking the other edge.
One edge is immovable in the direction of diameter reduction and is moved in the direction of opening
A jumper sleeve guide for an indirect live-wire construction method, which includes: a receiving portion that enables it ; and a projecting end that is provided on the main body in a plane shape orthogonal to the axis of the main body and applies a force at the time of removal. . 2. The jumper sleeve guide for an indirect live-wire construction method according to claim 1, wherein the projecting end is provided on the opposite side of the main body with respect to the slit-shaped opening.