CN205303046U

CN205303046U - Breathing type power cable

Info

Publication number: CN205303046U
Application number: CN201521139463.2U
Authority: CN
Inventors: 许璞; 石胜涛; 郝继宁; 俞强; 田子春
Original assignee: Qilu Cable Co Ltd
Current assignee: Qilu Cable Co Ltd
Priority date: 2015-12-31
Filing date: 2015-12-31
Publication date: 2016-06-08
Anticipated expiration: 2025-12-31

Abstract

The utility model discloses a breathing type power cable, including the cable core and to locate the cable core outer around the band, be equipped with the protective sheath outward around the band, the cable core includes the insulation core that a plurality of interval set up to and locating between the adjacent insulation core and insulation core and the hollow tube in the space between the band, insulation core includes conductor and the cladding insulating layer outside the conductor. The above technical scheme is adopted in the utility model, structural design is reasonable, has improved rounding degree, the the cost is reduced of cable, lets the cable freely breathe moreover and plays good radiating effect to improve the current -carrying capacity of cable, the utility model discloses the cable is difficult to freeze, and it is effectual, applicable under the lower condition of ambient temperature to melt ice melting snow, prevents cable damage.

Description

A kind of breathing pattern power cable

Technical field:

This utility model relates to a kind of breathing pattern power cable.

Background technology:

The production standard of conventional power cable defines packing material and should be suitable for cable operating temperature, should be compatible with insulant, that is: as long as this packing material adapts to cable operating temperature and that the insulated wire cores secondary injury of generation is just impassable, concrete regulation must not use any material. The most of producer of power cable being circular for conductor have employed adhesive tape or PP net dense packing effect, as it is shown in figure 1, the purpose filled also is the simple roundness in order to ensure cable. But the increase of the cross-section of cable therewith, the gap area of cable is also more big, by common PP net or adhesive tape dense packing effect, the heat radiation of cable is unfavorable, thus bad can cause that conductor current-carrying capacity reduces because cable dispels the heat, it is also difficult to ensure the roundness of particularly 4 cores or 5 core cables.

Utility model content:

This utility model is in order to make up the deficiencies in the prior art, provide a kind of breathing pattern power cable, its reasonable in design, not only can increase the activity coefficient of cable in cable production process, improve the roundness of cable, reduce cost, and cable can freely be breathed and plays good radiating effect, thus improving the current-carrying capacity of cable, solve problems of the prior art.

This utility model be the technical scheme is that by the above-mentioned technical problem of solution

A kind of breathing pattern power cable; including cable core and be located at the twining package tape outside cable core; twining package tape is externally provided with protection set; described cable core includes several spaced insulated wire cores; and it is located at the hollow pipe in the space between adjacent insulated wire cores and between insulated wire cores and twining package tape, insulated wire cores includes conductor and the insulating barrier being coated on outside conductor.

Described insulating barrier is polyvinyl chloride layer, and described hollow pipe is polyvinyl chloride pipe.

Described insulating barrier is cross-linked polyethylene layer, and described hollow pipe is polyethylene tube.

It is coated with the first aluminium foil layer at insulating barrier, heat conductive insulating overcoat it is arranged with outside the first aluminium foil layer, the heating wire being wrapped in outside the first aluminium foil layer it is provided with between the first aluminium foil layer and heat conductive insulating overcoat, heating wire is coated with thermal insulation layer, between heating wire and heat conductive insulating overcoat, is provided with the second aluminium foil layer.

Described thermal insulation layer is made up of polyimides or silica gel.

This utility model adopts such scheme, reasonable in design, improves the roundness of cable, reduces cost, and cable can freely be breathed and plays good radiating effect, thus improving the current-carrying capacity of cable; This utility model cable is not-easy-to-freeze, and ice-melt snow melt is effective, be applicable to ambient temperature relatively low when, it is prevented that cable bad.

Accompanying drawing illustrates:

Fig. 1 is the structural representation of traditional cable.

Fig. 2 is structural representation of the present utility model.

In figure, 1, twining package tape, 2, protection set, 3, conductor, 4, insulating barrier, 5, hollow pipe, the 6, first aluminium foil layer, 7, heat conductive insulating overcoat, 8, heating wire, 9, thermal insulation layer, the 10, second aluminium foil layer.

Detailed description of the invention:

For knowing the technical characterstic that this programme is described, below by detailed description of the invention, and in conjunction with its accompanying drawing, the utility model is elaborated.

As shown in Figure 2; a kind of breathing pattern power cable; including cable core and be located at the twining package tape 1 outside cable core; twining package tape 1 is externally provided with protection set 2; described cable core includes several spaced insulated wire cores; and it is located at the hollow pipe 5 in the space between adjacent insulated wire cores and between insulated wire cores and twining package tape 1, insulated wire cores includes conductor 3 and the insulating barrier 4 being coated on outside conductor 3.

Described insulating barrier 4 is polyvinyl chloride layer, and described hollow pipe 5 is polyvinyl chloride pipe.

Described insulating barrier 4 is cross-linked polyethylene layer, and described hollow pipe 5 is polyethylene tube.

It is coated with the first aluminium foil layer 6 at insulating barrier 4, it is arranged with heat conductive insulating overcoat 7 outside the first aluminium foil layer 6, the heating wire 8 being wrapped in outside the first aluminium foil layer 6 it is provided with between the first aluminium foil layer 6 and heat conductive insulating overcoat 7, heating wire 8 is coated with thermal insulation layer 9, between heating wire 8 and heat conductive insulating overcoat 7, is provided with the second aluminium foil layer 10. When snow or temperature very low may cable surface occur freeze phenomenon time, start heating wire 8 heat, make this utility model cable not-easy-to-freeze, ice-melt snow melt is effective, it is prevented that cable bad.

Described thermal insulation layer 9 is made up of polyimides or silica gel.

Replace original dense packing effect by adopting hollow pipe 5 to fill, reduce cost, add the ventilation of cable, be conducive to cable to dispel the heat, improve the current-carrying capacity of cable, improve the roundness of cable.

Above-mentioned detailed description of the invention cannot function as the restriction to this utility model protection domain, and for those skilled in the art, any alternate modification made to this utility model embodiment or conversion all fall within protection domain of the present utility model.

This utility model does not describe part in detail, is the known technology of those skilled in the art of the present technique.

Claims

1. a breathing pattern power cable; it is characterized in that: include cable core and the twining package tape being located at outside cable core; twining package tape is externally provided with protection set; described cable core includes several spaced insulated wire cores; and it is located at the hollow pipe in the space between adjacent insulated wire cores and between insulated wire cores and twining package tape, insulated wire cores includes conductor and the insulating barrier being coated on outside conductor.

2. a kind of breathing pattern power cable according to claim 1, it is characterised in that: described insulating barrier is polyvinyl chloride layer, and described hollow pipe is polyvinyl chloride pipe.

3. a kind of breathing pattern power cable according to claim 1, it is characterised in that: described insulating barrier is cross-linked polyethylene layer, and described hollow pipe is polyethylene tube.

4. a kind of breathing pattern power cable according to claim 1, it is characterized in that: be coated with the first aluminium foil layer at insulating barrier, heat conductive insulating overcoat it is arranged with outside the first aluminium foil layer, the heating wire being wrapped in outside the first aluminium foil layer it is provided with between the first aluminium foil layer and heat conductive insulating overcoat, heating wire is coated with thermal insulation layer, between heating wire and heat conductive insulating overcoat, is provided with the second aluminium foil layer.

5. a kind of breathing pattern power cable according to claim 4, it is characterised in that: described thermal insulation layer is made up of polyimides or silica gel.