CN202817667U - Wire sheath used for wire of electric transmission line - Google Patents

Abstract

The utility model discloses a wire protection sleeve used for the conductor of a power transmission line. The wire protection sleeve is in the shape of a circular tube, and two ends are provided with outward flanging. The angle is 30°. A slit is provided on the wire sheath, and the slit is parallel to the axis in the length direction of the wire sheath. The length of the grommet between the flanges at both ends is equal to the length of the bottom of the clamp that matches the wire plus 10mm. The inner diameter of the grommet is equal to the outer diameter of the corresponding wire, and the outer diameter of the grommet is equal to the inner diameter of the grommet plus 10mm. The utility model has the advantages that: the utility model can effectively prevent the aggravation of wire wear and damage caused by the looseness of the wire protection device; even if there is looseness in the construction process or operation, due to the inherent characteristics of the overall large plane, After the traditional aluminum tape is loosened, its edge cuts the outer ring of the wire, which leads to increased wire wear.

Description

A wire sheath for transmission line conductors

technical field

The utility model belongs to the field of electric power transmission, and in particular relates to a wire protection sleeve for a wire of a power transmission line.

Background technique

At present, the conductors of transmission lines generally use aluminum strips to wrap the clamping parts to form a protective form when they pass through the clamp devices such as suspension clamps and the anti-vibration hammer. Wire aluminum tape is pressed together for protection.

With the continuous improvement of the voltage level of the transmission line, the wire diameter and current carrying capacity of the wire continue to increase, but the traditional aluminum tape and the subsequent carbon fiber cloth and other protective devices cannot be tightly attached to the wire when wrapped on site by winding. As a result, there are often loose aluminum tapes during operation, which will not only fail to effectively protect the wires during operation, but will accelerate the wear and damage rate of the wires, laying the groundwork for the safe operation of the transmission line. Hidden danger.

Utility model content

In order to overcome the defect that the wire protection device in the prior art cannot be closely attached to the wire and is easy to loosen, the utility model provides a wire protection sleeve for the wire of a power transmission line.

The concrete technical scheme of the utility model is as follows:

A wire sheath used for transmission line conductors is in the shape of a round tube, with outward flanges 2 at both ends, and the angle between the flanges 2 and the axis in the length direction of the wire sheath 1 is 30°; the wire sheath 1 is provided with a slot 3, the slot 3 is parallel to the axis of the length direction of the grommet 1; the length of the grommet 1 between the flanges 2 at both ends is equal to the length of the bottom of the wire clip 5 matched with the wire 4 plus 10mm .

The inner diameter of the grommet 1 is equal to the outer diameter of the corresponding wire 4, and the outer diameter of the grommet 1 is equal to the inner diameter of the grommet 1 plus 10mm.

The utility model has the advantages of:

(1) The utility model can effectively prevent the aggravation of wire wear and damage caused by the loosening of the wire protection device;

(2) Even if the utility model is loose during construction or operation, due to the inherent characteristics of its overall large plane, it will not cause the edge of the traditional aluminum tape to cut the outer ring of the wire after loosening, resulting in aggravated wear of the wire .

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a cross-sectional view of the utility model.

Figure 3 is a schematic diagram of the installation of the utility model.

Fig. 4 is the use status diagram of the utility model.

Serial numbers in the above picture: grommet 1, flange 2, slot 3, wire 4, suspension clamp 5.

Specific implementation methods:

Below in conjunction with accompanying drawing, the utility model is further described.

Example:

As shown in Figure 1, a kind of grommet used for the conductor of a transmission line, the grommet 1 is in the shape of a round tube, and the two ends are provided with outward flanging 2, and the flanging 2 is connected with the length direction of the grommet 1. The angle between the axes is 30°. The grommet 1 is provided with a slot 3 , and the slot 3 is parallel to the axis of the grommet 1 in the length direction. The length of the grommet 1 between the flanges 2 at both ends is equal to the length of the bottom of the suspension clamp 5 matched with the wire 4 plus 10 mm.

The inner diameter of the grommet 1 is equal to the outer diameter of the corresponding wire 4, and the outer diameter of the grommet 1 is equal to the inner diameter of the grommet 1 plus 10 mm, as shown in FIG. 2 .

The installation and use method of the present utility model are as follows:

In the first step, as shown in Figure 3, during on-site construction, the wire sheath 1 is manually broken off and then covered with the holding part of the wire 4 and the wire clamp;

In the second step, as shown in FIG. 4 , snap into the suspension clamp 5 and fasten it through the bolts on the suspension clamp 5 so that the grommet 1 fits closely with the wire 4 and the suspension clamp 5 .

In order to ensure that the grommet 1 can fit closely with the wire 4 during the clamping process of the suspension clamp 5, the opening of the grommet 1 should be arranged vertically upward so that the grommet can have enough deformation space when shrinking.

Claims (2)

1. A wire sheath for transmission line conductors, characterized in that: the wire sheath (1) is in the shape of a round tube, with outward flanging (2) at both ends, and the flanging (2) is connected with the sheathing The included angle between the axes in the length direction of the wire sleeve (1) is 30°; a slot (3) is opened on the wire sleeve (1), and the slot (3) is parallel to the axis in the length direction of the wire sleeve (1) ; The length of the grommet (1) between the flanges (2) at both ends is equal to the length of the bottom of the wire clamp (5) matched with the wire (4) plus 10mm. 2. A wire sheath for transmission line conductors according to claim 1, characterized in that: the inner diameter of the wire sheath (1) is equal to the outer diameter of the corresponding wire (4), and the wire sheath (1) The outer diameter is equal to the inner diameter of the grommet (1) plus 10mm.

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