JPH0446512A - Insulating cover and insulating method for wiring work part - Google Patents

Abstract

PURPOSE:To decrease work near insulated sections and improve the safety of work by using adjacent detachable cover members which have openings downward to cover the top and both sides of the insulated sections. CONSTITUTION:An insulating cover 11 comprises an arm covering member 12 and an insulator covering member 13 and both of them are made of synthetic resin. The arm covering member 12 consists of a channel 14 with a U-shaped cross section having an opening downward to a cover the top and both sides of an arm and an overhang 16 with a U-shaped cross section having an opening downward. The insulator covering member 13 consists of a connection frame 25 fitted to cover the overhang 16 of the arm covering member 12 and an insulator cover 26. The connection frame 25 of the insulator covering member 13 is fitted on the overhang 16 of the arm covering member 12 for covering.

Description

[Detailed Description of the Invention] [Industrial Application Field J] The present invention relates to an insulating cover that is placed over an insulator supporting an overhead electric wire, a arm of a utility pole, etc. when performing live wire work on an overhead electric wire, and a method for insulating the same. Regarding.

"Conventional Technology J When carrying out work on live overhead power lines, it is a good practice to cover arms, insulators, etc. near the work with insulating covers to prevent electric shocks to workers and short circuits between wires. be exposed.

Conventionally, such an insulating cover has, for example, the structure shown in FIG. The cover members 5 for the arms 1, insulators,
These cover members 2, 3, and 5 are formed of a molded product of synthetic resin (74% insulating material) to match the outer shape of the electric wire 4.
After separately covering the reading meeting 1st class, each cover member 2, 3, 5
An insulating band 6 is wrapped so as to cover 111rJ1 in between, and finally the whole is tied up with a rubber string 7.

"Problems to be Solved by the Invention" However, with such a technique, the installation of each cover member 2, 3, 5 is a work, the wrapping of the insulating sheet 6 is a work, and the binding work with the rubber string 7 is required. It is necessary to perform three different types of work in sequence, which makes the work complicated, and all work is performed directly by the worker on the part to be insulated near the live electric wire 4, which reduces safety. A problem arises in terms of In this case, it is possible to use a hot stick to attach the cover members 2, 3, and 5, but it is possible to use a hot stick to attach the cover members 2, 3, and 5. The attaching work and the binding work with the rubber cord 7 must be performed directly in the vicinity of the electric wire 4 by a worker.

The present invention effectively solves the above-mentioned problems, and aims to provide an insulating cover and an insulating method that can reduce the work in the vicinity of the part to be insulated and improve the safety of the work.

"Means for Solving the Problem" The insulating cover according to claim 1 is comprised of a plurality of cover members that are attached to a plurality of insulating target locations that are close to each other, such as the arms and insulators of utility poles, and these cover members 3. The insulation method according to claim 2, wherein the insulation method has a lower opening structure capable of covering the upper and side parts of the part to be insulated, and is provided with a removable locking part that connects adjacent cover members to each other. In the insulating cover according to claim 1, each cover member is connected and integrated with each other at a position away from the part to be insulated, and after holding these with a hot stick and transporting them together to the part to be insulated, It is characterized by being placed over the area to be insulated.

``Function J'' The insulating cover according to claim 1 allows these cover members to be handled as one by connecting and fixing each cover member to each other by a removable locking portion, and further,
No deviation or gap will occur between each cover member.

In the insulation method according to claim 2, the insulation state can be achieved by assembling a plurality of cover members in a safe place such as on the ground and covering the area to be insulated using a hot stick, and the worker can insulate the electric wires. Work can be carried out safely without getting close to other objects.

Embodiment F An embodiment of the present invention will be described below with reference to FIGS. 1 to 3.

FIGS. 1 and 2 show an embodiment of an insulating cover, and the insulating cover 11 is composed of a armrest cover member 12 and an insulator cover member 13.

The arm arm cover member 12 is made of synthetic resin (electrical insulating material) and includes a channel section 14 having a U-shaped cross section and an open lower part that can cover both sides and the upper part of the arm arm 1, and an upper plate of the channel section 14. A cylindrical portion 15 protrudes from the surface of the channel portion 14a, and a cylindrical portion 15 protrudes from the side plates 14b of the channel portion 14.
An overhanging part 1 having a U-shaped cross section with an opening at the bottom as well as
6 are integrally formed. In this case, the cylindrical portion 15 and the projecting portion 16 are the insulator 1 provided on the arm arm 1.
7 and the supporting metal fitting 18A of the insulator 18, both projecting portions 16 are arranged on the same line orthogonal to the channel portion 14, and in the portion surrounded by the projecting portion 16 and the cylindrical portion 15, Channel part 1
4 is provided with a through hole 19 or a notch 20.

The insulator cover member 13 is integrated with a connecting frame portion 25 that is fitted to cover the overhanging portion 16 of the arm arm cover member 12, and an insulator covering portion 26 that is formed continuously with the connecting frame portion 25. It is said that the structure was formed in The connecting frame portion 25 is
It is formed into a box shape with the front and lower parts open, and fixed pieces 27 are formed protruding from both sides of the front end. The insulator covering part 26 is formed in a bellows shape with an abbreviated cross section that is open at the bottom, and is provided in a series arrangement at the rear end of the connecting frame part 25. or are in communication with each other.

The channel portion I4 of the armband cover member 12
Detachable locking portions 31 and 32 are provided on the side plate 14b and the fixing piece 27 of the connection frame portion 25 of the insulator cover member 13 to connect them to each other. The removable locking portions 31 of the cover member 12 for the armrest are constituted by pin-shaped protrusions that protrude from the side plates 14b of the channel portion 14 at positions on both sides of the overhang portion 16. The possible locking portion 32 is connected to the double-sided fixed piece 2.
7, a removable locking portion 31 in the reading group cover member 12;
It consists of a hole that fits into the hole.

Further, eye rings 33 for hanging by hot sticks are provided on the side plates 14b of the channel portion 14 of the reading group cover member 12 and the side surfaces of the connecting frame portions 25 of the insulator cover member 13, respectively.

When insulating the area to be insulated using the insulating cover 11 configured in this way, first, on the ground etc., attach the connecting frame portion of the insulator cover member 13 to the overhanging portion 16 of the arm cover member 12. 25 and lock these removable locking parts 31 and 32, thereby fixing the double force lever members 12 and I3 in a connected state. Then, use a hot stick to suspend the eyerings 33 of the double-strength spring members 12 and 13, lift them up to the desired insulation area, and place them on the reading board 1, the insulators 17 and 18, etc. It appears as if it were covered in one piece.

That is, the insulating cover 11 can be assembled on the ground, etc., away from the area to be insulated, and then it can be insulated by simply placing it over the area to be insulated using a hot stick, so the work is extremely simple. With,
This eliminates the need to work near electric wires and improves safety. Then, cover members of various shapes were prepared to match the shapes of various reading groups and insulators, etc.
In that case, for example, when only the size of the insulator or the length of the insulator is different, for similar shapes of insulators and insulators, the removable locking part is attached to a cover member of a different shape to match the insulator. By making the arrangement and shape of the two parts uniform, it is only necessary to replace one part before using it. Further, an electric wire cover member may be connected to the insulator cover member as necessary.

Further, the structure of the connecting portion of each cover member may also be as shown in FIG. 3, for example. This insulating cover 41 eliminates the overhanging part 16 and the connecting frame part 25 in one embodiment,
A notch 43 is provided in the armrest cover member 42, and the fixing piece 27 of the insulator cover member 44 can be attached to and removed from the locking portions 31 and 3.
2 to the cross arm cover member 42, the notch 43 is communicated with the insulator cover member 44, and the opening gap and displacement of the double force bar members 42 and 44 is prevented from occurring.

"Effects of the Invention J As is clear from the above explanation, the present invention can bring about the following effects.

(1) The insulating cover according to claim 1 is capable of connecting a plurality of cover members by the removable locking portion, so that the plurality of cover members can be handled as a unit, and workability is good, and each cover member It is also possible to prevent misalignment and generation of gaps.

(11) The insulation method according to claim 2 is extremely easy to assemble the cover member at a position away from the area to be insulated, and the insulation state can be achieved by simply covering the area to be insulated using a hot stick. It is easy and
It is possible to eliminate work near electric wires and improve safety.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view showing one embodiment of the insulating cover of the present invention, Fig. 2 is a perspective view showing the insulating cover of Fig. 1 attached to a reading club, etc., with chain lines, and Fig. 3 is the insulating cover. FIG. 4 is an exploded perspective view showing another embodiment of the present invention, and FIG. 4 is a perspective view showing a conventional insulating cover attached to a reading room or the like. 1 ・Reading meeting, ]l Kongo cover member, ]3 4゛ Channel part, 1 Extrusion part, 17・18・ part, 26 ・Insulator covering part, 32... Detachable locking part, 41... Insulation Cover 42 44 -- Cover member for insulator.・Insulation cover 12 Cover member for arm insulator, 1 5 ・Cylinder part, 】6・ ・Main insulator, 25 ・Connecting frame 27 ・Fixing piece, 31・ 33... Eye ring 1 3. Arm arm cover member, Fig. Fig. Fig. Fig.

Claims (1)

[Scope of Claims] 1 Consists of a plurality of cover members attached to a plurality of places to be insulated that are close to each other, such as arms and insulators of a utility pole, and these cover members cover the upper and side parts of the places to be insulated. 1. An insulating cover for an electric wire work department, characterized in that it has a lower opening structure and is provided with a removable locking part that connects adjacent cover members to each other. 2. In the insulating cover according to claim 1, each cover member is connected and integrated with each other at a position away from the part to be insulated, and after holding these with a hot stick and transporting them together to the part to be insulated, the insulating cover is An insulation method in the electrical wiring work department that is characterized by covering the target area.