JPH0654433A - Cable end - Google Patents

Abstract

(57) [Abstract] [Purpose] To prevent winding collapse of insulating tape. [Structure] A rubber mold stress cone 6a in which a semiconductive layer 5 for electric field relaxation is embedded at the lower end is stepped off, and a cable end portion fitted in the cable end is flat on the tip side of the rubber mold stress cone 6a. It is characterized in that the section 10 is provided. [Effect] Winding work of the insulating tape around the rubber mold stress cone can be facilitated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable terminal section.

[0002]

2. Description of the Related Art FIG. 3 shows a conventional example of a cable end portion, and FIG. 4 shows a conventional example of a rubber mold stress cone. As shown in these figures, the tip of the cable is a cable insulator 1 which is sequentially applied on the cable conductor,
The cable semi-conductive layer 2, the cable copper tape 3, and the cable sheath 4 are stripped off in a required length. A hollow rubber mold stress cone 6 having a semiconductive layer 5 for electric field relaxation embedded in its lower end so as to cover most of the stripped cable insulator 1 is fitted on the tip of the cable. The flat portion on the lower end side of the rubber mold stress cone 6 and the cable semiconductive layer 2 are wound with a semiconductive tape 7. A part of the wound semi-conductive tape 7, cable copper tape 3 and cable sheath 4 is tightly wound with an insulating tape 8. The conductor at the tip of the cable is connected to the terminal 9. Also, the cable tip side and the rubber mold stress cone 6 are covered with an insulating tape 8 to prevent the rubber mold stress cone 6 from moving.
Is wound.

[0003]

Since the rubber mold stress cone in the above prior art has a slope at the upper end (see FIG. 4), it is wound around the insulating tape wound to prevent the movement of the stress cone as described above. There was a defect that the collapse occurred.

The present invention has been made in view of the above points, and an object of the present invention is to provide a cable terminal portion having a rubber mold stress cone capable of preventing winding collapse of an insulating tape.

[0005]

The above object is achieved by providing a flat portion on the tip side of the rubber mold stress cone.

[0006]

Since the above means is provided, the work of winding the insulating tape around the tip of the rubber mold stress cone becomes easy.

[0007]

EXAMPLES Next, the present invention will be specifically described by way of examples.

[Embodiment 1] FIGS. 1 and 2 show an embodiment of the present invention. Since the same parts as those of the prior art are designated by the same reference numerals, the description thereof will be omitted. In this embodiment, the flat portion 10 is provided on the tip side of the rubber mold stress cone 6a. By doing so, the work of winding the insulating tape 8 around the tip of the rubber mold stress cone 6a is facilitated, the insulating tape 8 is firmly wound, and the winding of the insulating tape 8 is prevented. It is possible to obtain the cable end portion having the rubber mold stress cone 6a that is enabled.

That is, since the insulating tape 8 is wound around the flat portion 10 provided on the rubber mold stress cone 6a,
It is very easy to wind compared to winding on a slope.
As described above, the winding work is easy, so that the winding can be performed firmly, and thus the insulating tape 8 wound in the conventional manner is used.
Is not loosened, and it is possible to prevent winding collapse.

As described above, according to the present embodiment, when the rubber mold stress cone having the flat portion at the upper end is applied to the cable end, the occurrence of winding collapse of the insulating tape wound around the upper end of the stress cone is prevented. .

The length of the flat part provided on the upper end of the rubber mold stress cone is at least 19 mm of insulating tape width.
That is all.

[0012]

As described above, according to the present invention, since the flat portion is provided on the tip side of the rubber mold stress cone, the work of winding the insulating tape around the tip of the rubber mold stress cone is facilitated, and the insulating tape is provided. Since 8 is firmly wound, a cable end portion having a rubber mold stress cone capable of preventing the winding of the insulating tape 8 can be obtained.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of an embodiment of a cable terminal portion of the present invention.

FIG. 2 is a vertical cross-sectional side view of the rubber mold stress cone of the same embodiment.

FIG. 3 is a vertical sectional side view of a conventional cable terminal portion.

FIG. 4 is a vertical sectional side view of a conventional rubber mold stress cone.

[Explanation of symbols]

 5 Semi-conductive layer 6a Rubber mold stress cone 8 Insulating tape 10 Flat part

Claims (1)

[Claims] 1. A cable end portion, in which a rubber mold stress cone having a semiconductive layer for relaxing an electric field embedded in a lower end portion thereof is fitted in a stepped-off cable end portion, a flat portion is provided on a tip end side of the stress cone. A cable terminal portion that is provided.