CN216871658U - High-weather-resistance overhead insulated cable for electrical engineering - Google Patents

Abstract

The utility model discloses an overhead insulated cable with good weather resistance for electrical engineering, which comprises a cable body, wherein a decorative film is arranged on the surface of the cable body, the cable body comprises a wire core, an inner protective layer is fixedly connected to the outer surface of the wire core, an insulating layer is fixedly connected to the outer surface of the inner protective layer, a heat insulating layer is fixedly connected to the outer surface of the insulating layer, and an impermeable layer is fixedly connected to the outer surface of the heat insulating layer. According to the utility model, through the matching of the cable body, the decorative film, the wire core, the inner protective layer, the insulating layer, the heat insulating layer, the impermeable layer, the waterproof layer, the protective layer, the shielding layer, the metal layer, the outer protective layer, the anticorrosive layer, the weather-resistant layer and the pressure-resistant layer, when the overhead insulated cable is used in an external complex environment, the overhead insulated cable has the advantages of good insulation, heat insulation, water resistance, corrosion resistance, weather resistance and the like, the service efficiency and the service life of the overhead insulated cable are greatly improved, and the requirements in the current electrical engineering field are very met.

Description

High-weather-resistance overhead insulated cable for electrical engineering

Technical Field

The utility model relates to the technical field of cables, in particular to an overhead insulated cable with good weather resistance for electrical engineering.

Background

An overhead cable (called overhead insulated cable) is an overhead conductor with an insulating layer and a protective sheath, is a special cable manufactured by adopting a production process similar to a crosslinked cable, is a novel power transmission mode between the overhead conductor and an underground cable, is a single-core overhead cable, can be divided into a duralumin wire structure, an aluminum alloy wire structure, a steel core or aluminum alloy core supporting structure, a self-supporting three-core texture structure (the wire core can be duralumin or duralumin wire) and the like according to different structures, has the main characteristics of high power supply reliability, good power supply safety, convenient erection and maintenance, reasonable economy and the like, has the main technical parameters of weather resistance, insulation level, internal and external semi-conductive shielding layers, has wide power transmission application at home and abroad, has the duralumin wire structure with light weight, moderate tensile force, is easy to bend, is convenient to install and has low construction cost, can just so install and use on current shaft tower, general transformation or newly-built engineering adopt this kind more, draw copper line structure firmly, but the pulling force is big, the effect ability of resisting the external force is strong, the cable still can continue to circular telegram when the shaft tower breaks even, the light in weight of aluminum alloy line structure, the pulling force is big, mainly used span is in the big span shaft tower system of 100m, steel core or aluminum alloy core bearing structure generally are used for 35kV voltage system, the span is also great, separate supporting wire (bare wire) and three insulated phase line with square insulation, the supporting wire can be used as the lightning conductor, its biggest advantage is that the sag is little, the arc weight is only about 2.4% of span, self-supporting three-core transposition structure is arranged in the system in the span, the shortcoming of this kind of cable is: the three-core cable is shorter than a single core in manufacturing length, more joints are formed, an outer semi-conductive shielding layer is arranged at the tail end of the cable, a terminal head or a stress cone structure is arranged at the tail end of the cable like a common cable, the common oil paper insulating cable or a cross-linked insulating cable is not directly hung on an overhead tower by the overhead cable, but a special cable manufactured by a production process similar to a cross-linked cable is adopted, but the existing overhead insulating cable in the current market has the problem of poor weather resistance, and a certain hidden danger exists when the overhead insulating cable is used in a complex external environment for a long time.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an overhead insulated cable with good weather resistance for electrical engineering, which has the advantage of good weather resistance and solves the problem of poor weather resistance of the overhead insulated cable.

In order to achieve the purpose, the utility model provides the following technical scheme: an overhead insulated cable with good weather resistance for electrical engineering comprises a cable body, wherein a decorative film is arranged on the surface of the cable body, the cable body comprises a wire core, an inner protective layer is fixedly connected to the outer surface of the wire core, an insulating layer is fixedly connected to the outer surface of the inner protective layer, a heat insulating layer is fixedly connected to the outer surface of the insulating layer, an impermeable layer is fixedly connected to the outer surface of the heat insulating layer, a waterproof layer is fixedly connected to the outer surface of the impermeable layer, a protective layer is fixedly connected to the outer surface of the waterproof layer, a shielding layer is fixedly connected to the outer surface of the protective layer, a metal layer is fixedly connected to the outer surface of the shielding layer, an outer protective layer is fixedly connected to the outer surface of the metal layer, the outer surface of the outer protective layer is fixedly connected with the inner surface of the decorative film, the protective layer comprises an anticorrosive layer, and a weather-resistant layer is fixedly connected to the outer surface of the anticorrosive layer, and the outer surface of the weather-resistant layer is fixedly connected with a pressure-resistant layer.

Preferably, the inner protection layer is made of a polyester fiber cable tie, and the insulation layer is made of a weather-resistant polyethylene insulation material.

Preferably, the heat insulation layer is made of an aluminum foil heat insulation coiled material, the impermeable layer is made of synthetic polymer polyurethane waterproof paint, and the thickness of the impermeable layer is two thirds of that of the heat insulation layer.

Preferably, the waterproof layer is made of a novel polymer cement-based waterproof material, and the shielding layer is made of a conductive foam gasket.

Preferably, the metal layer is made of a copper mesh, the outer protection layer is made of polyvinyl chloride, and the anti-corrosion layer is made of polyurethane paint.

Preferably, the weather-resistant layer is made of glass fiber high-temperature cloth, and the pressure-resistant layer is made of aerogel glass fiber felt.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, through the matching of the cable body, the decorative film, the wire core, the inner protective layer, the insulating layer, the heat insulating layer, the impermeable layer, the waterproof layer, the protective layer, the shielding layer, the metal layer, the outer protective layer, the anticorrosive layer, the weather-resistant layer and the pressure-resistant layer, when the overhead insulated cable is used in an external complex environment, the overhead insulated cable has the advantages of good insulation, heat insulation, water resistance, corrosion resistance, weather resistance and the like, the service efficiency and the service life of the overhead insulated cable are greatly improved, and the requirements in the current electrical engineering field are very met.

2. According to the utility model, the insulating layer is arranged, so that the electric leakage condition of the overhead insulated cable can be avoided, the heat insulation layer is arranged, so that the influence of external high temperature on the overhead insulated cable can be avoided, the anti-seepage layer and the waterproof layer are arranged, so that the overhead insulated cable can be prevented from being excessively corroded by external water, the anti-corrosion layer is arranged, so that the overhead insulated cable can be prevented from being corroded by external substances with corrosion properties, the weather-resistant layer is arranged, so that the overhead insulated cable has good weather resistance, and the pressure-resistant layer is arranged, so that the overhead insulated cable can be prevented from being damaged by external pressure.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

fig. 3 is a schematic cross-sectional view of a protective layer according to the present invention.

In the figure: 1. a cable body; 2. decorating the film; 101. a wire core; 102. an inner protective layer; 103. an insulating layer; 104. a thermal insulation layer; 105. an impermeable layer; 106. a waterproof layer; 107. a protective layer; 108. a shielding layer; 109. A metal layer; 110. an outer protective layer; 1071. an anticorrosive layer; 1072. a weatherable layer; 1073. and a pressure resistant layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The components of the present invention are all standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experimentation.

Referring to fig. 1-3, an overhead insulated cable with good weatherability for electrical engineering comprises a cable body 1, a decorative film 2 is disposed on the surface of the cable body 1, the cable body 1 includes a wire core 101, an inner protective layer 102 is fixedly connected to the outer surface of the wire core 101, an insulating layer 103 is fixedly connected to the outer surface of the inner protective layer 102, an insulating layer 104 is fixedly connected to the outer surface of the insulating layer 103, an impermeable layer 105 is fixedly connected to the outer surface of the insulating layer 104, a waterproof layer 106 is fixedly connected to the outer surface of the impermeable layer 105, a protective layer 107 is fixedly connected to the outer surface of the waterproof layer 106, a shielding layer 108 is fixedly connected to the outer surface of the protective layer 107, a metal layer 109 is fixedly connected to the outer surface of the metal layer 109, an outer protective layer 110 is fixedly connected to the outer surface of the outer protective layer 110 and the inner surface of the decorative film 2, the protective layer 107 includes an anticorrosive layer 1071, the outer surface of the anti-corrosion layer 1071 is fixedly connected with a weather-resistant layer 1072, the outer surface of the weather-resistant layer 1072 is fixedly connected with a pressure-resistant layer 1073, the inner protective layer 102 is made of a polyester fiber ribbon, the insulating layer 103 is made of a weather-resistant polyethylene insulating material, the insulating layer 104 is made of an aluminum foil heat-insulating coiled material, the impermeable layer 105 is made of a synthetic polymer polyurethane waterproof coating, the thickness of the impermeable layer 105 is two thirds of that of the insulating layer 104, the waterproof layer 106 is made of a novel polymer cement-based waterproof material, the shielding layer 108 is made of a conductive foam liner, the metal layer 109 is made of a copper mesh, the outer protective layer 110 is made of polyvinyl chloride, the anti-corrosion layer 1071 is made of polyurethane paint, the weather-resistant layer 1072 is made of glass fiber high-temperature cloth, the pressure-resistant layer 1073 is made of aerogel glass fiber felt, by arranging the insulating layer 103, the electric leakage condition of the overhead insulated cable can be avoided, through setting up insulating layer 104, can avoid outside high temperature to cause the influence to aerial insulated cable, through setting up barrier layer 105 and waterproof layer 106, can prevent that outside water from excessively eroding aerial insulated cable, through setting up anticorrosive coating 1071, can avoid the outside material that has corrosive nature to corrode aerial insulated cable, through setting up resistant layer 1072, make aerial insulated cable possess good weatherability, through setting up resistance to compression layer 1073, can avoid aerial insulated cable to be damaged by external pressure, through cable body 1, decorating film 2, sinle silk 101, inner protective layer 102, insulating layer 103, insulating layer 104, barrier layer 105, waterproof layer 106, inoxidizing coating 107, shielding layer 108, metal layer 109, outer protective layer 110, anticorrosive coating 1071, resistant layer 1072 and resistance to compression layer 1073's cooperation, when making aerial insulated cable use in external complex environment, possess insulating, thermal-insulated, waterproof, The aerial insulated cable has the advantages of good corrosion resistance and weather resistance, greatly improves the service efficiency and the service life of the aerial insulated cable, and meets the requirements of the current electrical engineering field.

During the use, electrical working personnel erect overhead insulated cable at the assigned position, install fixed back with electric power transportation to the assigned area, last through insulating layer 103, can avoid the overhead insulated cable electric leakage condition to appear, through insulating layer 104, can avoid outside high temperature to cause the influence to overhead insulated cable, through barrier 105 and waterproof layer 106, can prevent that outside water from excessively eroding overhead insulated cable, through anticorrosive coating 1071, can avoid the outside material that has corrosive property to corrode overhead insulated cable, through resistant layer 1072, make overhead insulated cable possess good weatherability, through resistance to compression layer 1073, can avoid overhead insulated cable to be damaged by external pressure.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides an overhead insulated cable that weatherability is good for electrical engineering, includes cable body (1), its characterized in that: the cable comprises a cable body (1), wherein a decorative film (2) is arranged on the surface of the cable body (1), the cable body (1) comprises a wire core (101), an inner protective layer (102) is fixedly connected to the outer surface of the wire core (101), an insulating layer (103) is fixedly connected to the outer surface of the inner protective layer (102), a heat insulating layer (104) is fixedly connected to the outer surface of the insulating layer (103), an impermeable layer (105) is fixedly connected to the outer surface of the heat insulating layer (104), a waterproof layer (106) is fixedly connected to the outer surface of the impermeable layer (105), a protective layer (107) is fixedly connected to the outer surface of the waterproof layer (106), a shielding layer (108) is fixedly connected to the outer surface of the protective layer (107), a metal layer (109) is fixedly connected to the outer surface of the shielding layer (108), and an outer protective layer (110) is fixedly connected to the outer surface of the metal layer (109), the surface of outer protective layer (110) and the internal surface fixed connection of decorating film (2), inoxidizing coating (107) are including anticorrosive coating (1071), the outer fixed surface of anticorrosive coating (1071) is connected with resistant layer (1072), the outer fixed surface of resistant layer (1072) is connected with anti-pressure layer (1073).

2. The overhead insulated cable with good weather resistance for electrical engineering according to claim 1, wherein: the inner protection layer (102) is made of a polyester fiber ribbon, and the insulation layer (103) is made of a weather-resistant polyethylene insulation material.

3. The overhead insulated cable with good weather resistance for electrical engineering according to claim 1, wherein: the heat insulation layer (104) is made of an aluminum foil heat insulation coil, the impermeable layer (105) is made of synthetic polymer polyurethane waterproof paint, and the thickness of the impermeable layer (105) is two thirds of that of the heat insulation layer (104).

4. The overhead insulated cable with good weather resistance for electrical engineering according to claim 1, wherein: the waterproof layer (106) is made of a novel polymer cement-based waterproof material, and the shielding layer (108) is made of a conductive foam liner.

5. The insulated overhead cable with good weather resistance for electrical engineering according to claim 1, wherein: the material of metal level (109) is the copper mesh, the material of outer protective layer (110) is polyvinyl chloride, the material of anticorrosive coating (1071) is polyurethane paint.

6. The overhead insulated cable with good weather resistance for electrical engineering according to claim 1, wherein: the material of resistant layer (1072) is glass fiber high temperature cloth, the material of anti-pressure layer (1073) is aerogel glass fiber felt.

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