JP2009295547A - Electric cable holding structure and insulator arrangement structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric cable holding structure and an insulator arrangement structure, for reducing the cost of members and the expense of mounting operation by making it hard to form a path of leak current on a surface of an insulating part by dripping of rainwater. <P>SOLUTION: The electric cable holding structure for mounting and holding an electric cable to be erected on and by an insulator device includes a support, an arm member transversely disposed on the support, and an insulator device for holding an electric cable on the arm member. The insulator device includes a bar-like core material and a shade part formed on the outer circumference thereof in multiple stages, and is disposed transversely. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a wire holding structure and a lever arrangement structure for holding or supporting an electric wire installed between utility poles with a lever device on a brace member.

FIG. 2 is an explanatory view showing an electric wire holding structure 200 including a conventional lever device, which holds (supports) a wire to be wired by using a pin insulator in a wire support portion of a high-voltage distribution line that is stretched and wired. It is a figure which shows the state which is doing.
In this electric wire holding structure 200, an arm member 20 is horizontally provided in the power pole 10 for laying and supporting a stretched distribution line, and three high-voltage pin insulators (p 1) are provided on the arm member 20. , p2, p3) are arranged at predetermined intervals, and the electric wires (d1, d2, d3) are connected to grooves or recesses provided in the upper part of the high-voltage pin insulators (p1, p2, p3) by a bind line (not shown). The structure is fixed and fixed.

  In the electric wire holding structure 200 of FIG. 2, the arm member 20 is a steel mold having a substantially square cross section, has through holes (a1, a2, a3) in the vertical direction, and is attached to the arm member 20 at the lower part thereof. Bolt portions (b1, b2, b3) are provided. The high-pressure pin insulators (p1, p2, p3) are inserted downward from above into the through holes (a1, a2, a3) of the arm member 20, and the nuts (n1) , n2, n3) are fastened and fixedly held on the arm member 20.

Examples of patent documents relating to the technical field of the “wire holding structure and insulator arrangement structure” of the present invention include the following.
JP 2006-31774 A JP 2003-009325 A JP 09-140034 A

  In the conventional pin insulator mounting structure of the high-voltage distribution line as shown in FIG. 2, the charging part such as the electric wire and the grounding part such as the arm member (arm metal) are vertically supported by the insulator. Therefore, there is a problem that a leakage current path tends to be formed on the surface of the insulating portion due to dripping of rainwater. Moreover, the unit price of a high voltage | pressure pin insulator is high, and there also exists a subject that an electric wire installation work requires much effort and expense.

  The present invention has been made to solve the above-mentioned problems, and it is difficult to form a leakage current path on the surface of the insulating portion due to dripping rain water, thereby reducing the cost of the member and the cost of the mounting work. Therefore, it is an object of the present invention to provide a “wire holding structure and insulator arrangement structure” that does not require labor and cost.

(1) An electric wire holding structure 100 for attaching and holding electric wires (d1, d2, d3) to be installed to the insulator device 30,
A support 10;
An arm member 20 disposed laterally on the support 10;
An insulator device 30 for holding the electric wires (d1, d2, d3) on the arm member 20,
The lever device 30 is a wire holding structure 100 that has a rod-shaped core 31 and multi-stage shades 32 formed on the outer periphery thereof, and is arranged in the lateral direction.
(2) In the wire holding structure of (1),
The insulator device 30 is composed of a polymer insulator.

(3) An insulator arrangement structure 100 in which the insulator device 30 is arranged at a predetermined position,
A support 10;
An arm member 20 disposed laterally on the support 10;
An insulator device 30 for holding the electric wires (d1, d2, d3) on the arm member 20,
The lever device 30 has a rod-like core member 32 and multi-stage shades 31 formed on the outer periphery thereof, and has a lever arrangement structure 100 arranged in the lateral direction.

According to the `` wire holding structure and insulator arrangement structure '' of the present invention, since the charging portion such as the electric wire and the grounding portion such as the arm metal are held (supported) in the lateral direction including the horizontal direction by the insulating portion, The path of the leakage current on the surface of the insulating portion due to the dripping of rainwater can be cut off, and the leakage current of the insulator can be suppressed.
In addition, the equipment of the present invention has a simple structure with fewer members than the conventional equipment, and it is possible to reduce costs and cost of installation work.

Now, an embodiment of the “wire holding structure and insulator arrangement structure” according to the present invention will be described with reference to FIG.
FIG. 1 relates to an embodiment of the present invention, and is an explanatory view of an electric wire holding structure 100 that attaches and holds (supports) electric wires (d1, d2, d3) that are stretched and installed on an insulator device 30. is there.
Here, the support 10 is an electric pole for mounting and arranging electric wires and attached equipment, and the arm member 20 is disposed on the support 10 in the lateral direction.

The arm member 20 is provided with a lever device 30 for holding the electric wire, and the lever device 30 is held by a support device 40 attached on the arm member 20.
The support device 40 includes a thin plate-shaped “support body 41” that is placed on and arranged on the upper surface of the arm member 20, and protrudes upward from the support body 41 so as to be an insulator device. 30 is provided. "Left end support arm 42c-center support arm 42b-right end support arm 42a" is provided.

Further, the support body 41 of the support device 40 includes three “left support bolt B3—center support bolt B2—right support bolt B1” protruding downward, and these support bolts (B1, B2, B3). Are inserted through the through-holes (a1, a2, a3) of the arm member 20 from the upper side to the lower side, and nuts (n1, n2, n3) are fastened to the protruding portions and fixed on the arm member 20.
Here, since the arm member 20 having the conventional structure of FIG. 2 is used as it is, the support bolts (B1, B2) of the support device 40 are matched with the positions of the through holes (a1, a2, a3) of the arm member 20. , B3).

The insulator device 30 in the wire holding structure 100 of FIG. 1 has a rod-shaped core member 31 and multi-stage shade portions 32 on the outer periphery thereof, and is substantially parallel to the arm member 20 arranged in the horizontal direction. Are arranged in a horizontal direction or a horizontal direction.
Further, the electric wires (d1, d2, d3) are arranged according to the same position and interval as the structure using the pin insulator of FIG. 2 and are arranged at a predetermined position between the two shade portions 32 above the core member 31. It is placed, and is bound and fixed by a bind line (not shown). The electric wires (d1, d2, d3) can be arranged not on the upper portion of the core member 31 but on the lower portion.

The insulator device 30 in the electric wire holding structure 100 of FIG. 1 can use a polymer insulator made of a polymer material. This polymer insulator is formed by forming disk-shaped or annular solid-shaped shades in multiple stages on the outer periphery of a rod-like core material 31, and a large number of shades are spaced at a predetermined interval in the axial direction of the core material 31. Are evenly arranged.
The core material 31 is formed from a fiber reinforced resin such as an FRP rod, and the cap portion is formed from a rubber material such as silicone rubber or EPDM formed by molding.

By the way, in FIG. 1, the arrangement | positioning of many shade parts in the lever apparatus 30 of this invention is shown about what is arranged in the axial direction of the core material 31 with a predetermined space | interval between many shade parts. However, the present invention is not limited to this, and the arrangement of the many shade portions may not be an equal arrangement.
That is, in the electric wire holding structure 100 of FIG. 1, although three electric wires (d3-d2-d1) are stretched in a substantially horizontal direction, the electric wire d2 located in the middle is located at the center position because of the electric pole 10. In order to adjust the leakage distance (surface distance), there is a possibility that the arrangement of the many shade portions cannot be arranged in an equal manner.
Therefore, when arranging a large number of shade portions on the core member 31, it is preferable to arrange the shade portions so that the leakage distance (surface distance) between the wires and the grounding portion can be sufficiently taken.

When the insulator device 30 according to the present invention is disposed on the arm member of the utility pole, the insulator device 30 is disposed in the lateral direction including the horizontal direction, but the path of the leakage current on the surface of the insulating portion due to the dripping of rain water is divided. It is only necessary to achieve the object that the leakage current of the insulator can be suppressed, so that the arrangement angle of the insulator device 30 can be set to a certain degree from the horizontal direction.
In addition, the insulator device 30 is described using a polymer insulator (made of a polymer material), but a conventional porcelain insulator can also be used, but the polymer insulator is easy to manufacture and lightweight. There are many advantages such as easy handling and high performance, and further improvement in workability and cost reduction can be expected.

It is a figure for demonstrating the electric wire holding structure and insulator arrangement | positioning structure which concern on one Embodiment of this invention. It is a figure for demonstrating the conventional electric wire holding structure and insulator arrangement | positioning structure

Explanation of symbols

100 Electric wire holding structure d1, d2, d3 Electric wire 10 Support (electric pole)
20 Arm member 30 Insulator device 31 Core material 32 Cap portion 40 Support device 41 Support body 42a, 42b, 42c Support arm B1, B2, B3 Support bolts a1, a2, a3 Arm member through holes n1, n2, n3 For fastening nut

Claims (3)

An electric wire holding structure for attaching and holding an installed electric wire to an insulator device,
With support,
An arm member disposed laterally on the support;
An insulator device for holding the electric wire on the arm member,
The said insulator apparatus has the core material of a rod-shaped body, and the shade part formed in multiple steps on the outer periphery, and is arrange | positioned by the horizontal direction, The electric wire holding structure characterized by the above-mentioned. In the electric wire holding structure according to claim 1,
The electric wire holding structure, wherein the lever device is a polymer lever. The lever arrangement structure in which the lever device is arranged at a predetermined position,
With support,
An arm member disposed laterally on the support;
An insulator device for holding an electric wire on the arm member,
An insulator arrangement structure characterized in that the insulator device has a rod-shaped core member and multistagely formed shade portions, and is arranged in a lateral direction.

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