CN208189283U - A kind of aerial insulated cable - Google Patents

Abstract

The utility model discloses a kind of aerial insulated cables, including organic glass bushing, centre bore and fixing belt, external protection is provided on the inside of the organic glass casing, inner protective layer is provided on the inside of the external protection, and hard-drawn aluminium wire conductor is provided on the inside of inner protective layer, the external protection includes insulating layer and plastic layer, the inner protective layer includes inner sheath, electrostatic screen layer and wrapping layer, the inner sheath is mounted on the outside of electrostatic screen layer, the electrostatic screen layer is mounted on the outside of wrapping layer, the hard-drawn aluminium wire conductor includes outer conductor and inner conductor, and outer conductor is mounted on the inside of wrapping layer, inner conductor shielded layer is provided on the outside of the inner conductor, and inner insulating layer is provided on the outside of inner conductor shielded layer, the wire drawing hole is internally provided with wirerope.The utility model improves the service life of this kind of cable, improves the resistance of cable, increases the pulling force of this kind of cable.

Description

A kind of aerial insulated cable

Technical field

The utility model relates to power cable technical field, specially a kind of aerial insulated cable.

Background technique

Aerial cable (full name aerial insulated cable) is equipped with insulating layer and protects the aerial condutor of crust, using similar It is the new transmission of electricity side between aerial condutor and buried cable in a kind of private cable of crosslinked cable production technology manufacture Formula [1].Aerial cable is all single, can be divided into duralumin cable architecture, hard-drawn copper wire structure, aluminium alloy knot by its structure difference Structure, steel core or aluminium alloy core support construction and three core line of self-bearing type close structure (core can be duralumin or hard copper wire) etc..With confession The main features such as electric high reliablity, Supply Security are good, erection and easy to maintenance and economy are reasonable.Its important technological parameters packet Include weatherability, dielectric level, inside and outside semiconductive shielding layer.At home and abroad power transmission application is extensive for aerial cable.General aerial electricity Cable is all single, can be divided into duralumin cable architecture, hard-drawn copper wire structure, aluminium alloy wire structure, steel core or aluminium by its structure difference Alloy core support construction and three core line of self-bearing type close structure (core can be duralumin or hard copper wire) etc., for duralumin cable architecture, Light-weight, cable is readily bent, easy for installation, and project cost is low, can be conveniently mounted on existing shaft tower and be used, and present one As be transformed or new construction mostly use it is such.But its pulling force is inadequate, easily snaps off, and the ability to function for resisting external force is poor.Thus I A kind of aerial insulated cable is provided.

Utility model content

The purpose of this utility model is to provide a kind of aerial insulated cables, to solve appearance mentioned above in the background art Frangibility, resist external force ability to function it is poor the problems such as.

To achieve the above object, the utility model provides the following technical solutions: a kind of aerial insulated cable, including organic glass Glass casing, centre bore and fixing belt are provided with external protection, the inside of the external protection on the inside of the organic glass casing It is provided with inner protective layer, and is provided with hard-drawn aluminium wire conductor on the inside of inner protective layer, the external protection includes insulating layer and plastic cement Layer, and plastic layer is internally provided with wire drawing hole, the inner protective layer include inner sheath, electrostatic screen layer and wrapping layer, described Inner sheath is mounted on the outside of electrostatic screen layer, and the electrostatic screen layer is mounted on the outside of wrapping layer, the hard-drawn aluminium wire conductor Including outer conductor and inner conductor, and outer conductor is mounted on the inside of wrapping layer, and inner conductor screen is provided on the outside of the inner conductor Layer is covered, and is provided with inner insulating layer on the outside of inner conductor shielded layer, the wire drawing hole is internally provided with wirerope, and wirerope has 16, and wirerope is evenly distributed in the outer ring of plastic layer.

Preferably, there are three the organic glass casing settings, and pass through fixed band connection between adjacent machine glass bushing.

Preferably, the plastic layer is provided centrally with centre bore, and the inside and outside wall of plastic layer is moulded by moulding glue Property.

Preferably, the insulating layer and inner insulating layer are made by polyvinyl chloride.

Preferably, the plastic layer is made by plastic grains.

Compared with prior art, the utility model has the beneficial effects that this kind of cable has been provided in the outer wall of insulating layer Machine glass bushing, organic glass casing chemical stability is good, and mechanical property and weather resistance are excellent, so as to waterproof and anticorrosion Erosion, protects cable, improves the service life of this kind of cable, and this kind of cable is provided with wire drawing hole in plastic layer, It is equipped with wirerope in wire drawing hole, therefore can be played a supporting role by wirerope to cable, improves the resistance of cable, It avoids cable breakdown, and increases the pulling force of this kind of cable, keeps its use process safer.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the structural schematic diagram of the utility model plastic layer；

Fig. 3 is the cross section structure schematic diagram of the utility model.

In figure: 1, organic glass casing；2, insulating layer；3, plastic layer；4, wire drawing hole；5, inner sheath；6, electrostatic screen layer； 7, wrapping layer；8, outer conductor；9, inner insulating layer；10, inner conductor shielded layer；11, inner conductor；12, wirerope；13, centre bore； 14, fixing belt；15, external protection；16, inner protective layer；17, hard-drawn aluminium wire conductor.

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.

Please refer to Fig. 1-3, a kind of embodiment provided by the utility model: a kind of aerial insulated cable, including organic glass Casing 1, centre bore 13 and fixing belt 14, the inside of organic glass casing 1 are provided with external protection 15, organic glass casing 1 Effect is waterproof, and outer bound pair cable is avoided to cause to collide, and the inside of external protection 15 is provided with inner protective layer 16, and inner protective layer 16 inside is provided with hard-drawn aluminium wire conductor 17, and the main function of hard-drawn aluminium wire conductor 17 is water conservancy diversion, and external protection 15 includes insulating layer 2 With plastic layer 3, insulating layer 2 plays insulating effect, conductor is avoided to contact with the external world, and plastic layer 3 plays the role of the buffering of filling, Wirerope 12 is avoided to damage cable, and plastic layer 3 is internally provided with wire drawing hole 4, inner protective layer 16 includes inner sheath 5, electrostatic screen layer 6 and wrapping layer 7, inner sheath 5 are mounted on the outside of electrostatic screen layer 6, and electrostatic screen layer 6 is mounted on wrapping layer 7 outside, hard-drawn aluminium wire conductor 17 includes outer conductor 8 and inner conductor 11, and outer conductor 8 is mounted on the inside of wrapping layer 7, inner conductor 11 outside is provided with inner conductor shielded layer 10, and the outside of inner conductor shielded layer 10 is provided with inner insulating layer 9, wire drawing hole 4 It is internally provided with wirerope 12, wirerope 12 there are 16, and wirerope 12 is evenly distributed in the outer ring of plastic layer 3.It is organic There are three the settings of glass bushing 1, and is connected between adjacent machine glass bushing 1 by fixing belt 14.Plastic layer 3 is provided centrally with Centre bore 13, and the inside and outside wall of plastic layer 3 carries out plasticity by moulding glue.Insulating layer 2 and inner insulating layer 9 are by polyvinyl chloride system Make.Plastic layer 3 is made by plastic grains.

Working principle: in use, 17 conductor of hard-drawn aluminium wire conductor is divided into outer conductor 8 and inner conductor 11, outer conductor 8 and inner conductor 11 are isolated by inner insulating layer 9, to avoid contacting with each other, therefore are able to carry out conveying electric energy, and the inside setting of plastic layer 3 Wirerope 12 can play a supporting role to cable, can long range set up when improve cable pulling force, avoid hard-drawn aluminium wire 17 pulling force of conductor not enough easily snaps off, and increases the effect for resisting external force, and is arranged on the outside of insulating layer 2 by organic glass casing 1, organic glass casing 1 can play the role of keeping out wind and rain on the outside, play protection, avoid sending out using insulating layer 2 for a long time Raw corrosion and damage, improve the service life of this kind of cable.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting Related claim.

Claims (5)

1. a kind of aerial insulated cable, including organic glass bushing (1), centre bore (13) and fixing belt (14), it is characterised in that: It is provided with external protection (15) on the inside of the organic glass casing (1), is provided with interior guarantor on the inside of the external protection (15) Sheath (16), and hard-drawn aluminium wire conductor (17) are provided on the inside of inner protective layer (16), the external protection (15) includes insulating layer , (2) and plastic layer (3) and plastic layer (3) is internally provided with wire drawing hole (4), and the inner protective layer (16) includes inner sheath (5), electrostatic screen layer (6) and wrapping layer (7), the inner sheath (5) are mounted on the outside of electrostatic screen layer (6), the electrostatic Shielded layer (6) is mounted on the outside of wrapping layer (7), and the hard-drawn aluminium wire conductor (17) includes outer conductor (8) and inner conductor (11), and Outer conductor (8) is mounted on the inside of wrapping layer (7), is provided with inner conductor shielded layer (10) on the outside of the inner conductor (11), and It being provided on the outside of inner conductor shielded layer (10) inner insulating layer (9), the wire drawing hole (4) is internally provided with wirerope (12), Wirerope (12) has 16, and wirerope (12) is evenly distributed in the outer ring of plastic layer (3).

2. a kind of aerial insulated cable according to claim 1, it is characterised in that: organic glass casing (1) setting There are three, and connected between adjacent machine glass bushing (1) by fixing belt (14).

3. a kind of aerial insulated cable according to claim 1, it is characterised in that: the center of the plastic layer (3) is arranged Have centre bore (13), and the inside and outside wall of plastic layer (3) carries out plasticity by moulding glue.

4. a kind of aerial insulated cable according to claim 1, it is characterised in that: the insulating layer (2) and inner insulating layer (9) it is made by polyvinyl chloride.

5. a kind of aerial insulated cable according to claim 1, it is characterised in that: the plastic layer (3) is by plastic grains Production.