CN214279666U

CN214279666U - Environment-friendly low-voltage cable

Info

Publication number: CN214279666U
Application number: CN202120506489.5U
Authority: CN
Inventors: 吴晓宝
Original assignee: Hubei Gongpai Cable Co ltd
Current assignee: Hubei Gongpai Cable Co ltd
Priority date: 2021-03-10
Filing date: 2021-03-10
Publication date: 2021-09-24
Anticipated expiration: 2031-03-10

Abstract

The utility model discloses an environment-friendly low tension cable, which comprises a protective layer, the fire-retardant layer of fixedly connected with on the inner wall of protective layer, one side fixedly connected with enhancement layer of protective layer is kept away from to fire-retardant layer, one side fixedly connected with first insulation layer of fire-retardant layer is kept away from to the enhancement layer, the inside packing on first insulation layer has the filling layer, the inside parcel of filling layer has anti brace and second insulation layer, and the tensile strip is located the central point of filling layer and puts, and the second insulation layer is located twelve o ' clock, four o ' clock and the eight o ' clock position of anti brace respectively, the inside fixedly connected with conductor of second insulation layer. The utility model discloses an adopt multiple materials such as polyurethane material and polyvinyl chloride, effectively solved the problem that the more and more low tension cable of present stage can not satisfy the environmental protection requirement.

Description

Environment-friendly low-voltage cable

Technical Field

The utility model relates to an electric power tech field specifically is an environment-friendly low tension cable.

Background

The cable is used for transmitting electric power or signal current, the conductor coated with insulating layer, protective layer, shielding layer, etc., divide into high-tension cable and low-tension cable according to the voltage, the low-tension cable usually is formed by core, insulating layer and protective layer three parts, the core is used for conducting the electric current, generally twisted by stranded copper wire or stranded aluminium wire, the low-tension cable has several kinds such as single core, double core, three-core, four-core, etc., the double-core cable is used in the single-phase circuit, three-core and four-core cable are used in three-phase three-wire system circuit and three-phase four-wire system circuit respectively, the single-core cable can be applied to the single-phase system circuit or three-phase system circuit as required, the common laying way of: the low-voltage power cable is directly buried, laid in a cable trench, laid along a wall, laid in a cable tunnel and the like, the type of the low-voltage power cable is mainly selected according to the using environmental conditions and the laying mode, and the low-voltage power cable is more difficult to lay and maintain compared with a low-voltage overhead line and a low-voltage overhead insulated line, but the low-voltage power cable is widely applied to a low-voltage power distribution system because the low-voltage power cable has the characteristics of reliable operation, no pole standing, no occupation of the ground, no influence on the sight, less influence from the outside and the like, and more low-voltage cables cannot meet the environmental protection requirement at the present stage along with the development and progress of the society, so that how to design the environment-friendly low-voltage cable becomes the problem to be solved currently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an environment-friendly low tension cable to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: in order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an environment-friendly low tension cable, includes the protective layer, the fire-retardant layer of fixedly connected with on the inner wall of protective layer, one side fixedly connected with enhancement layer of protective layer is kept away from on the fire-retardant layer, one side fixedly connected with first insulation layer on fire-retardant layer is kept away from to the enhancement layer, the inside packing on first insulation layer has the filling layer, the inside parcel of filling layer has anti brace and second insulating layer, and the central point that the tensile strip is located the filling layer puts, and the second insulating layer is located twelve o ' clock, four o ' clock and the eight o ' clock position of anti brace respectively, the inside fixedly connected with conductor of second insulating layer.

Preferably, the protective layer and the anti-pulling strip are made of polyurethane materials.

Preferably, the flame-retardant layer is made of Kevlar mesh woven aramid fiber material.

Preferably, the reinforcing layer is made of steel wires, and the integral structure of the reinforcing layer is net-shaped.

Preferably, the material of the first insulating layer and the second insulating layer is polyvinyl chloride.

Preferably, the material of the filling layer is alkali-free glass fiber yarn.

Preferably, the conductor is formed by twisting a plurality of strands of copper wires or a plurality of strands of aluminum wires.

Compared with the prior art, the beneficial effects of the utility model are that:

the environment-friendly low-voltage cable adopts the polyurethane material which has the properties of higher tensile strength, better wear resistance, resistance to corrosion of various grease and solvents, resistance to electron irradiation and the like, can still keep good bending property at the low temperature of 60 ℃ below zero, even if the cable is bent for many times with a small bending radius, the cable does not crack, and by adopting the polyvinyl chloride as the insulating layer and utilizing the high insulating property of the polyvinyl chloride, the dielectric loss, the voltage resistance, the electric arc resistance, the corona resistance, the volume resistivity, the surface resistivity and the like of the insulating material are listed as the first-class tall fescue, and the electric performance of the cable is slightly influenced by temperature and frequency, the electric performance and the insulating performance of the cable are greatly improved, by adopting the materials, the problem that more and more low-voltage cables cannot meet the environmental protection requirement at the present stage is effectively solved.

Drawings

Fig. 1 is a schematic view of the internal structure of the present invention.

In the figure: 1. a protective layer; 2. a flame retardant layer; 3. a reinforcing layer; 4. a first insulating layer; 5. anti-bracing; 6. a filling layer; 7. a second insulating layer; 8. a conductor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, the present invention provides an embodiment:

the utility model provides an environment-friendly low tension cable, including protective layer 1, the fire-retardant layer 2 of fixedly connected with on the inner wall of protective layer 1, one side fixedly connected with enhancement layer 3 of protective layer 1 is kept away from on fire-retardant layer 2, one side fixedly connected with first insulating layer 4 of fire-retardant layer 2 is kept away from to enhancement layer 3, the inside packing of first insulating layer 4 has filling layer 6, the inside parcel of filling layer 6 has anti brace 5 and second insulating layer 7, and anti brace 5 is located the central point of filling layer 6 and puts, and second insulating layer 7 is located the twelve o ' clock of anti brace 5 respectively, four o ' clock, and eight o ' clock positions, the inside fixedly connected with conductor 8 of second insulating layer 7.

Further, the protective layer 1 and the tensile bar 5 are made of polyurethane materials.

Further, the flame-retardant layer 2 is made of Kevlar mesh woven aramid fiber material.

Further, the material of the reinforcing layer 3 is steel wire, and the whole structure of the reinforcing layer 3 is net-shaped.

Further, the material of the first insulating layer 4 and the second insulating layer 7 is polyvinyl chloride.

Further, the material of the filling layer 6 is alkali-free glass fiber yarn.

Further, the conductor 8 is formed by twisting a plurality of strands of copper wires or a plurality of strands of aluminum wires.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. An environment-friendly low tension cable, includes protective layer (1), its characterized in that: fixedly connected with fire-retardant layer (2) on the inner wall of protective layer (1), one side fixedly connected with enhancement layer (3) of protective layer (1) are kept away from to fire-retardant layer (2), one side fixedly connected with first insulating layer (4) of fire-retardant layer (2) are kept away from in enhancement layer (3), the inside packing of first insulating layer (4) has filling layer (6), the inside parcel of filling layer (6) has anti brace (5) and second insulating layer (7), and tensile strip (5) are located the central point of filling layer (6) and put, and second insulating layer (7) are located twelve o ' clock, four o ' clock and the eight o ' clock position of anti brace (5) respectively, the inside fixedly connected with conductor (8) of second insulating layer (7).

2. The environment-friendly low-voltage cable as claimed in claim 1, wherein: the protective layer (1) and the tensile strips (5) are made of polyurethane materials.

3. The environment-friendly low-voltage cable as claimed in claim 1, wherein: the flame-retardant layer (2) is made of Kevlar mesh woven aramid fiber material.

4. The environment-friendly low-voltage cable as claimed in claim 1, wherein: the reinforcing layer (3) is made of steel wires, and the integral structure of the reinforcing layer (3) is net-shaped.

5. The environment-friendly low-voltage cable as claimed in claim 1, wherein: the first insulating layer (4) and the second insulating layer (7) are made of polyvinyl chloride.

6. The environment-friendly low-voltage cable as claimed in claim 1, wherein: the filling layer (6) is made of alkali-free glass fiber yarn.

7. The environment-friendly low-voltage cable as claimed in claim 1, wherein: the conductor (8) is formed by twisting a plurality of strands of copper wires or a plurality of strands of aluminum wires.