CN203165501U - Low-voltage cable - Google Patents

Abstract

The utility model discloses a low-voltage cable, comprising conductors and insulating layers, wherein the conductors comprises a first conductor and a second conductor which is adjacent to the first conductor, concentric conductors are evenly distributed around the first conductor and the second conductor, the insulating layers comprises first insulating layers and a second insulating layer, the first insulating layers are arranged on the outer side of the concentric conductors, and the second insulating layer is coated outside the first insulating layers. The low-voltage cable adopts a structure that the first conductor and the second conductor are arranged in a double-core abreast manner, and the first conductor and the second conductor are sequentially surrounded and coated by a the first insulating layers and the second insulating layer, can effectively reduce the occupied area, is high in insulativity, and can bear certain mechanical external force and tensile force.

Description

Low-voltage cable

Technical field

The utility model relates to a kind of electric wire, particularly relates to a kind of low-voltage cable.

Background technology

Along with the quickening of Urbanization in China, cable is widely used in the underground conveying of electric power and the supply of electric power in interim occasion such as meeting-place, building site etc. because of its good insulation property and wear-resisting humidity resistance.Usually adopt single-core power cables in actual use, but its joint and branch employing scene are peelled off sheath, insulation, select for use insulating material such as epoxy resin to seal the method for processing behind crimping branch or the joint again, still exist drawbacks such as the place, job site takies greatly, the engineering time is long, expense is high, equipment is many, technical conditions require height, difficulty is big, especially the joint after site operation is finished or branch, its dielectric strength, reliability, consistency all are difficult to be guaranteed.

The utility model content

Based on this, be necessary at the prior art problem, a kind of twin-core low-voltage cable side by side is provided.

For solving the prior art problem, the utility model discloses a kind of low-voltage cable, comprise conductor and insulating barrier, described conductor comprises first conductor and adjacent to second conductor of first conductor, be distributed with concentric conductor around described first conductor and second conductor, described insulating barrier comprises first insulating barrier and second insulating barrier, and described first insulating barrier is arranged at the outside of concentric conductor, and described second insulating barrier is wrapped in the first insulating barrier outside.

Further, described first conductor and second conductor are single copper core or how form with the copper core is stranded, and described concentric conductor is many with copper wire or copper strips.

Further, described first conductor is identical with second conductor shape.

Further, described concentric conductor area of section is less than the area of section of first conductor or second conductor.

Further, described concentric conductor area of section is 50% to 60% of first conductor or the second cross-sectional area of conductor area.

Further, described first insulating barrier is the PE insulating barrier.

Further, described second insulating barrier is the PVC insulating barrier.

The beneficial effects of the utility model are: owing to use technical scheme described in the utility model, first conductor and the second conductor twin-core have particularly been adopted side by side, be enclosed with the structure of first insulating barrier and second insulating barrier around first conductor and second conductor successively, can effectively reduce floor space, the insulativity height, and can bear certain mechanical external force and pulling force.

Description of drawings

Fig. 1 is the cross-sectional view of the utility model low-voltage cable.

Embodiment

For further understanding feature of the present utility model, technological means and the specific purposes that reach, function, below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.

See also Fig. 1, the utility model discloses a kind of low-voltage cable, comprise conductor and insulating barrier, this conductor comprises first conductor 1 and adjacent to second conductor 2 of first conductor 1, be distributed with concentric conductor 3 around this first conductor 1 and second conductor 2, this insulating barrier comprises first insulating barrier 4 and second insulating barrier 5, and this first insulating barrier 1 is arranged at the outside of concentric conductor 3, and this second insulating barrier 5 is wrapped in first insulating barrier, 4 outsides.

First conductor 1 that is somebody's turn to do and second conductor 2 are single copper core or how form with the copper core is stranded, and this concentric conductor 3 is many with copper wire or copper strips.

First conductor 1 that is somebody's turn to do is identical with second conductor, 2 shapes.

These concentric conductor 3 areas of section are less than the area of section of first conductor 1 or second conductor 2.

These concentric conductor 3 areas of section are 50% to 60% of first conductor 1 or second conductor, 2 areas of section.

This first insulating barrier 4 is the PE insulating barrier.

This second insulating barrier 5 is the PVC insulating barrier.

The above embodiment has only expressed a kind of execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.

Claims (7)

1. low-voltage cable, comprise conductor and insulating barrier, it is characterized in that: described conductor comprises first conductor (1) and adjacent to second conductor (2) of first conductor (1), described first conductor (1) and second conductor (2) are distributed with concentric conductor (3) on every side, described insulating barrier comprises first insulating barrier (4) and second insulating barrier (5), described first insulating barrier (1) is arranged at the outside of concentric conductor (3), and described second insulating barrier (5) is wrapped in first insulating barrier (4) outside.

2. low-voltage cable according to claim 1 is characterized in that: described first conductor (1) and second conductor (2) are single copper core or how form with the copper core is stranded, and described concentric conductor (3) be to follow copper wire or copper strips more.

3. low-voltage cable according to claim 1, it is characterized in that: described first conductor (1) is identical with second conductor (2) shape.

4. low-voltage cable according to claim 3, it is characterized in that: described concentric conductor (3) area of section is less than the area of section of first conductor (1) or second conductor (2).

5. low-voltage cable according to claim 4, it is characterized in that: described concentric conductor (3) area of section is 50% to 60% of first conductor (1) or second conductor (2) area of section.

6. low-voltage cable according to claim 1, it is characterized in that: described first insulating barrier (4) is the PE insulating barrier.

7. low-voltage cable according to claim 1, it is characterized in that: described second insulating barrier (5) is the PVC insulating barrier.

Images