CN209708692U - A kind of power cable with cross-linked polyethylene insulation of flame-proof heat-resistant - Google Patents

Abstract

The utility model discloses a kind of power cable with cross-linked polyethylene insulations of flame-proof heat-resistant, including cable internal layer, cable outer layer and graphite linings, cable internal layer is made of crosslinked polyetylene insulated layer and conductive cable cores, conductive cable cores there are six being set inside crosslinked polyetylene insulated layer, the utility model is by covering multiple protective layers for conductive cable cores outer surface, certain flame retardant effect can be played by the filling of gypsum powder, the setting of waterproof layer and thermal insulation layer guarantees that cable can normal use under high temperature or the environment of humidity, it will not influence its service performance and service life, tensile layer and anti-bite layer are set simultaneously, improve the tensile property of cable, and it can avoid being baited by muroid and ant class and causing cable bad, so as to prolong its service life, entire novel power cable protective performance is more preferable, flame-retardance and thermal endurance is higher , more practicability.

Description

A kind of power cable with cross-linked polyethylene insulation of flame-proof heat-resistant

Technical field

The utility model relates to a kind of power cable with cross-linked polyethylene insulation, in particular to a kind of crosslinking of flame-proof heat-resistant is poly- Ethylene insulated power cable, belongs to field of cable technology.

Background technique

Cross-linked polyethylene insulated cable is a kind of cable suitable for fields such as power distribution networks, has PVC insulated cable can not The advantages of analogy, structure it is simple, light-weight, heat-resisting it is good, load capacity is strong, non-fusible, resistant to chemical etching, high mechanical strength, But existing cross-linked polyethylene insulated cable poor flame retardant properties, not heat-resisting enough, waterproofness is bad, while tension is ineffective, is easy It is baited by muroid and ant class and causes cable bad.

Utility model content

The technical problems to be solved in the utility model is to overcome the deficiencies of existing technologies, and provides a kind of crosslinking of flame-proof heat-resistant Polyethylene-insulated power cable.

In order to solve the above-mentioned technical problem, the utility model provides the following technical solution:

A kind of power cable with cross-linked polyethylene insulation of flame-proof heat-resistant of the utility model, including cable internal layer, cable outer layer And graphite linings, the cable internal layer is made of crosslinked polyetylene insulated layer and conductive cable cores, described crosslinked polyetylene insulated Layer is internal to be set there are six conductive cable cores, and each conductive cable cores outer surface is enclosed with core protective case, and every It is mutually bonded between the two neighboring core protective case, the cable inner layer outer surface is enclosed with cable outer layer.

As a kind of optimal technical scheme of the utility model, the cable outer layer by anti-bite layer, tensile layer, thermal insulation layer and Waterproof layer composition, the crosslinked polyetylene insulated layer outer surface are enclosed with waterproof layer, are filled with silica gel inside the waterproof layer Grain, the waterproof layer outer surface are enclosed with thermal insulation layer, and the thermal insulation layer outer surface is enclosed with tensile layer, the tensile layer outer surface It is enclosed with anti-bite layer.

As a kind of optimal technical scheme of the utility model, inside the crosslinked polyetylene insulated layer and it is located at six lines Gypsum powder is filled on the outside of core protective case.

As a kind of optimal technical scheme of the utility model, the thermal insulation layer is prepared using rock wool, and described anti- It stings layer to be prepared using rubber material and inside it filled with arsenic preparation, the waterproof layer uses polyethylene polypropylene waterproof material It is prepared.

As a kind of optimal technical scheme of the utility model, the anti-bite layer outer surface is coated with one layer of graphite linings.

As a kind of optimal technical scheme of the utility model, the tensile layer is made of tension warp, tension weft, more A tension warp and tension weft are crossed-over, and each tension warp and each tension weft intersection are equal It is fixedly connected by rivet, and the tension warp and tension weft are all made of aramid fiber material and are prepared.

The utility model beneficial effect achieved is: a kind of crosslinked polyetylene insulated electricity of flame-proof heat-resistant of the utility model Power cable, it is reasonable in design, by the way that conductive cable cores outer surface is covered multiple protective layers, pass through filling out for gypsum powder Certain flame retardant effect can be played by filling, and the setting of waterproof layer and thermal insulation layer guarantees cable under high temperature or the environment of humidity Normal use will not influence its service performance and service life；Tensile layer and anti-bite layer are set simultaneously, improve the pull resistance of cable Can, and can avoid being baited by muroid and ant class and causing cable bad, so as to prolong the service life, entire Novel electric Power cable protective performance is more preferable, and flame-retardance and thermal endurance is higher, more practicability.

Detailed description of the invention

Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.In the accompanying drawings:

Fig. 1 is the cable internal layer cross-sectional view of the utility model；

Fig. 2 is the cable outer layer cross-sectional view of the utility model；

Fig. 3 is the tension schematic diagram of a layer structure of the utility model.

In figure: 1, cable internal layer；2, cable outer layer；3, graphite linings；11, crosslinked polyetylene insulated layer；12, gypsum powder； 13, conductive cable cores；14, core protective case；21, anti-bite layer；22, tensile layer；23, thermal insulation layer；24, waterproof layer；25, silica gel Particle；221, tension warp；222, tension weft；223, rivet.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Embodiment: as shown in Figure 1-3, a kind of power cable with cross-linked polyethylene insulation of flame-proof heat-resistant of the utility model, packet Cable internal layer 1, cable outer layer 2 and graphite linings 3 are included, cable internal layer 1 is by crosslinked polyetylene insulated layer 11 and conductive cable cores 13 It forms, is set inside crosslinked polyetylene insulated layer 11 there are six conductive cable cores 13, each 13 outer surface of conductive cable cores is equal It is enclosed with core protective case 14, and is mutually bonded between each adjacent two core protective case 14,1 outer surface of cable internal layer package There is cable outer layer 2.

Wherein, cable outer layer 2 is made of anti-bite layer 21, tensile layer 22, thermal insulation layer 23 and waterproof layer 24, and crosslinked polyethylene is exhausted 11 outer surface of edge layer is enclosed with waterproof layer 24, is filled with silica gel particle 25 inside waterproof layer 24,24 outer surface of waterproof layer is enclosed with Thermal insulation layer 23,23 outer surface of thermal insulation layer are enclosed with tensile layer 22, and 22 outer surface of tensile layer is enclosed with anti-bite layer 21.

Wherein, gypsum powder is filled with inside crosslinked polyetylene insulated layer 11 and on the outside of six core protective cases 14 12, certain flame retardant effect can be played by gypsum powder 12.

Wherein, thermal insulation layer 23 is prepared using rock wool, and anti-bite layer 21 is prepared and inside it using rubber material Filled with arsenic preparation, waterproof layer 24 is prepared using polyethylene polypropylene waterproof material, has certain anti-muroid of insulation and ant Class baits function, and has waterproof effect.

Wherein, anti-bite 21 outer surface of layer is coated with one layer of graphite linings 3, increases power cable with cross-linked polyethylene insulation outer surface Slickness and wearability.

Wherein, tensile layer 22 is made of tension warp 221, tension weft 222, multiple tension warps 221 and tension weft 222 are crossed-over, and each tension warp 221 and each 222 intersection of tension weft pass through the fixed company of rivet 223 It connects, and tension warp 221 and tension weft 222 are all made of aramid fiber material and are prepared, and increase whole pull resistance, avoids long-term It pulls and causes to be broken.

Specifically, when the utility model is used, by the way that conductive cable cores 13 are wrapped in core protective case 14, can rise To certain protective effect, while crosslinked polyetylene insulated layer 11 is set on the outside of multiple core protective cases 14, is being crosslinked poly- second 11 inside filler plaster powder 12 of alkene insulating layer can not only play the role of certain flame-resistant insulation, but also enriched in landfill In the case of also have certain crushing resistance, furthermore crosslinked polyetylene insulated 11 outer surface of layer be arranged waterproof layer 24, utilize silica gel The strong water absorption function of particle 25 guarantees to remain drying inside cable internal layer 1, avoids the use for influencing conductive cable cores 13 Performance, and thermal insulation layer 23 has certain resistance to heat function, can avoid conductive cable cores 13 is influenced by external high temperature, passes through setting Tensile layer 22 is crossed-over using tension warp 221 and tension weft 222, under the connection of rivet 223, so that entirely Cable more has a pull resistance, and anti-bite layer 21 can resist baiting for muroid and ant class, extends the service life of cable, graphite linings 3 can reinforce the slickness and wearability of cable surface.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of power cable with cross-linked polyethylene insulation of flame-proof heat-resistant, which is characterized in that outside including cable internal layer (1), cable Layer (2) and graphite linings (3), the cable internal layer (1) are made of crosslinked polyetylene insulated layer (11) and conductive cable cores (13), There are six being set inside the crosslinked polyetylene insulated layer (11) conductive cable cores (13), each conductive cable cores (13) Outer surface is enclosed with core protective case (14), and is mutually bonded between core protective case (14) described in each adjacent two, institute It states cable internal layer (1) outer surface and is enclosed with cable outer layer (2).

2. a kind of power cable with cross-linked polyethylene insulation of flame-proof heat-resistant according to claim 1, which is characterized in that described Cable outer layer (2) is made of anti-bite layer (21), tensile layer (22), thermal insulation layer (23) and waterproof layer (24), the crosslinked polyethylene Insulating layer (11) outer surface is enclosed with waterproof layer (24), is filled with silica gel particle (25) inside the waterproof layer (24), described anti- Water layer (24) outer surface is enclosed with thermal insulation layer (23), and thermal insulation layer (23) outer surface is enclosed with tensile layer (22), the tension Layer (22) outer surface is enclosed with anti-bite layer (21).

3. a kind of power cable with cross-linked polyethylene insulation of flame-proof heat-resistant according to claim 1, which is characterized in that described Crosslinked polyetylene insulated layer (11) is internal and is located on the outside of six core protective cases (14) filled with gypsum powder (12).

4. a kind of power cable with cross-linked polyethylene insulation of flame-proof heat-resistant according to claim 2, which is characterized in that described Thermal insulation layer (23) is prepared using rock wool, and the anti-bite layer (21) is prepared and is filled with inside it using rubber material Arsenic preparation, the waterproof layer (24) are prepared using polyethylene polypropylene waterproof material.

5. a kind of power cable with cross-linked polyethylene insulation of flame-proof heat-resistant according to claim 2, which is characterized in that described Anti-bite layer (21) outer surface is coated with one layer of graphite linings (3).

6. a kind of power cable with cross-linked polyethylene insulation of flame-proof heat-resistant according to claim 2, which is characterized in that described Tensile layer (22) is made of tension warp (221), tension weft (222), multiple tension warps (221) and tension weft (222) it is crossed-over, and each tension warp (221) and each tension weft (222) intersection pass through rivet (223) it is fixedly connected, and the tension warp (221) and tension weft (222) are all made of aramid fiber material and are prepared.