CN209015749U - A kind of isolated form steel-cored aluminium strand cable - Google Patents

Abstract

The utility model discloses a kind of isolated form steel-cored aluminium strand cables, including inner core and conducting wire, the conducting wire is wrapped in the surface of inner core, the surface of the conducting wire is coated with the first insulating layer, the surface of first insulating layer is coated with erosion resistant coating, and the surface of the erosion resistant coating is coated with cable shield, and the surface of the cable shield is coated with crust, the erosion resistant coating is made of the first anti-corrosion layer and the second anti-corrosion layer, and is provided with fireprotection layer between the first anti-corrosion layer and the second anti-corrosion layer.The utility model increases substantially the stability to chemical attack, it overcomes existing cable crust there are anti-corrosive properties and is inadequate, swelling occurs, dissolution or cracking, the accidents such as short circuit, power failure are caused frequently to occur, and steel strand wires cable is the reinforced type lead wire being stranded in outside zinc-plated steel core wire by single-layer or multi-layer aluminium strand, so that cable long service life, it is poor to solve existing cable anti-corrosion effect, thus the problem of influencing cable service life.

Description

A kind of isolated form steel-cored aluminium strand cable

Technical field

The utility model relates to field of cable technology, specially a kind of isolated form steel-cored aluminium strand cable.

Background technique

Steel-cored aluminium strand is widely used in overhead transmission line, and traditional steel-cored aluminium strand is twisted by aluminum steel and steel wire Made of, inside is steel core, and outside is to be wrapped in around steel core with aluminum steel by stranded mode, and steel core, which mainly rises, increases intensity Effect, aluminum stranded conductor mainly play a part of to transmit electric energy.

The utility model of Patent No. CN207503714U proposes a kind of isolated form steel-cored aluminium strand cable, including outer layer (1), inner core (2) and aluminium Baogang core conducting wire (3), inner core (2) and aluminium Baogang core conducting wire (3) are placed in outer layer (1), inner core (2) week Enclose and more than two aluminium Baogang core conducting wires (3) be distributed with, characterized in that the outer layer (1) is placed in protective layer (4), outer layer (1) with More than one isolating cylinder (5) is fixedly connected between protective layer (4), isolating cylinder (5) is PVC material, is filled in isolating cylinder (5) Heat-insulating flame-retardant body (6).Although the utility model can be using isolating cylinder come isolated protective layer and aluminium Baogang core conducting wire, and utilizes Heat-insulating flame-retardant body increases the fire-retardant and heat insulation of conducting wire, but the utility model anti-corrosion effect is poor, to influence cable Service life, for this purpose, it is proposed that a kind of isolated form steel-cored aluminium strand cable.

Utility model content

The purpose of this utility model is to provide a kind of isolated form steel-cored aluminium strand cables, have the excellent of favorable anti-corrosion effect It is poor to solve existing cable anti-corrosion effect for point, thus the problem of influencing cable service life.

To achieve the above object, the utility model provides the following technical solutions: a kind of isolated form steel-cored aluminium strand cable, packet Including inner core and conducting wire, the conducting wire is wrapped in the surface of inner core, and the surface of the conducting wire is coated with the first insulating layer, and described first The surface of insulating layer is coated with erosion resistant coating；

The surface of the erosion resistant coating is coated with cable shield, and the surface of the cable shield is coated with crust, described Erosion resistant coating is made of the first anti-corrosion layer and the second anti-corrosion layer, and is provided between the first anti-corrosion layer and the second anti-corrosion layer Fireprotection layer.

Preferably, the surface of the crust is coated with graphite ene coatings, the graphite ene coatings with a thickness of 0.05- 0.10mm。

Preferably, the fireprotection layer uses the ethylene propylene rubber insulated layer of flame-retardant, and first insulating layer uses soft polychlorostyrene Vinyl plastics, and the first insulating layer with a thickness of 0.8-1.0mm.

Preferably, the conducting wire is made of conductor, second insulating layer and conductor shield, and the second insulating layer is coated on The surface of conductor, the conductor shield are coated on the surface of second insulating layer.

Preferably, the thickness of the conductor shield and cable shield is 0.8-1.0mm, and eccentricity is no more than 15%.

Preferably, first insulating layer use soft polyvinyl chloride plastic, and the first insulating layer with a thickness of 0.5- 0.8mm。

Preferably, the crust use corrosion proof cable crust, corrosion proof cable crust using nano modification white carbon black with Compound adhesive is combined and is prepared.

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

1, the utility model is increased substantially by being provided with corrosion proof cable crust and erosion resistant coating to the steady of chemical attack It is qualitative, it overcomes existing cable crust there are anti-corrosive properties inadequate, swelling, dissolution or cracking occurs, causes short circuit, have a power failure, control The accidents such as malfunction, communication disruption frequently occur, to extend the service life of cable, and steel strand wires cable be by single layer or Multilayer aluminum strand is stranded in the reinforced type lead wire outside zinc-plated steel core wire, so that cable long service life, it is anti-to solve existing cable Rotten effect is poor, thus the problem of influencing cable service life.

2, the utility model uses the ethylene propylene rubber insulated layer of flame-retardant, improves by being provided with fireprotection layer, fireprotection layer Fireproofing of cable effect improves the insulation performance of cable, passes through setting by being provided with the first insulating layer and second insulating layer Graphite ene coatings, graphene are the carbon materials with two-dimensional nanostructure, have ultra-high conductivity and preferable hydrophobicity, lead Line does not freeze, and can be very good to reduce ice damage, improves the security reliability of transmission line of electricity operation.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model anti-corrosion layer structure schematic diagram；

Fig. 3 is the utility model conductor structure schematic diagram.

In figure: 1 inner core, 2 conducting wires, 201 conductors, 202 second insulating layers, 203 conductor shields, 3 first insulating layers, 4 are prevented Rotten layer, 401 first anti-corrosion layers, 402 second anti-corrosion layers, 403 fireprotection layers, 5 cable shields, 6 crusts, 7 graphite ene coatings.

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.

It please refers to Fig. 1-3, a kind of isolated form steel-cored aluminium strand cable, including inner core 1 and conducting wire 2, conducting wire 2 and is wrapped in inner core 1 surface, the surface of conducting wire 2 are coated with the first insulating layer 3, and the surface of the first insulating layer 3 is coated with erosion resistant coating 4；

The surface of erosion resistant coating 4 is coated with cable shield 5, and the surface of cable shield 5 is coated with crust 6, erosion resistant coating 4 by First anti-corrosion layer 401 and the second anti-corrosion layer 402 composition, and set between the first anti-corrosion layer 401 and the second anti-corrosion layer 402 It is equipped with fireprotection layer 403, steel-cored aluminium strand is twisted by aluminum steel and steel wire, is suitable for overhead transmission line and is used, inside it It is steel " core ", outside is to be wrapped in around steel core with aluminum steel by stranded mode；Steel core mainly plays a part of to increase intensity, and aluminium twists Line mainly plays a part of to transmit electric energy；The surface of crust 6 is coated with graphite ene coatings 7, graphite ene coatings 7 with a thickness of 0.05- 0.10mm, fireprotection layer 403 use the ethylene propylene rubber insulated layer of flame-retardant, and the first insulating layer 3 uses soft polyvinyl chloride plastic, and the One insulating layer 3 with a thickness of 0.8-1.0mm, by being provided with fireprotection layer 403, fireprotection layer 403 uses flame-retardant EP rubbers Insulating layer improves fireproofing of cable effect, and conducting wire 2 is made of conductor 201, second insulating layer 202 and conductor shield 203, Second insulating layer 202 is coated on the surface of conductor 201, and conductor shield 203 is coated on the surface of second insulating layer 202, passes through Provided with the first insulating layer 3 and second insulating layer 202, the insulation performance of cable, conductor shield 203 and cable shield are improved The thickness of layer 5 is 0.8-1.0mm, and eccentricity is no more than 15%, and the material of conductor shielding is with polyethylene by semiconductive material Base-material adds carbon black to form, and 35KV and twisted polyethylene cable below use cross-linking type or non-crosslinked type conductor shielding material, 35KV or more uses cross-linking type conductor shielding material, when carrying out conductor shield extrusion using three-layer co-extruding machine head, partly shielding effect Expect that the phenomenon got into connector slots is exactly that conductor shielding is embedded, embedded place Insulation Material can enter under extrusion pressure to be led Protrusion is formed in body shielded layer, will cause the disconnection of conductor shield when serious, conductor is directly contacted with insulating materials, causes office Portion's electric field strength is concentrated, and the resistance to voltage levels of cable insulation are reduced, and influences the service life of cable, the first insulating layer 3 is using soft Igelite, and the first insulating layer 3 with a thickness of 0.5-0.8mm, by being provided with graphite ene coatings 7, graphene is tool There is the carbon material of two-dimensional nanostructure, there is ultra-high conductivity and preferable hydrophobicity, conducting wire 2 does not freeze, can be very good to subtract Few ice damage, improves the security reliability of transmission line of electricity operation, and crust 6 uses corrosion proof cable crust, corrosion proof cable crust benefit Be prepared in conjunction with compound adhesive with nano modification white carbon black, corrosion proof cable crust with nitrile rubber, neoprene, nano modification White carbon black, silicon ball pearl, linear phenol-aldehyde resin, cumyl peroxide, 2,6-di-tert-butyl p-cresol, three nitrogen amine of benzo, sulfuric acid Calcium, sodium bicarbonate, odium stearate, vinyltriethoxysilane are primary raw material, utilize nano modification white carbon black and compound adhesive In conjunction with being prepared, by increasing substantially the stability to chemical attack provided with corrosion proof cable crust and erosion resistant coating 4, It overcomes existing cable crust 6 there are anti-corrosive properties inadequate, swelling, dissolution or cracking occurs, causes short circuit, have a power failure, control malfunction The accidents such as work, communication disruption frequently occur, to extend the service life of cable, and steel strand wires cable is by single-layer or multi-layer Aluminium strand is stranded in the reinforced type lead wire 2 outside zinc-plated steel core wire, so that cable long service life, solves existing cable anti-corrosion effect Fruit is poor, thus the problem of influencing cable service life.

In use, corrosion proof cable crust utilizes nano modification white carbon black in conjunction with compound adhesive, it is resistance to remaining compound adhesive Soda acid, it is anti-aging while increase its buckle resistance, the molecular structure of composite material has the saturability of height, and is not present Active substituent group, in the presence of certain substituent groups, the active part in rubber molecule structure is stablized, by high temperature High pressure calcination simultaneously vulcanizes post-processing, so that molecule space arrangement is close, in crystallization is orientated such that, increases substantially to chemistry The stability of corrosion, overcomes existing cable crust there are anti-corrosive properties inadequate, and swelling, dissolution or cracking occurs, causes short circuit, stop The accidents such as electricity, control malfunction, communication disruption frequently occur, to extend the service life of cable, and steel strand wires cable is Reinforced type lead wire outside zinc-plated steel core wire is stranded in by single-layer or multi-layer aluminium strand, so that cable long service life, solves existing There is cable anti-corrosion effect poor, thus the problem of influencing cable service life.

In summary: the isolated form steel-cored aluminium strand cable passes through inner core 1, conducting wire 2, erosion resistant coating 4, the first anti-corrosion layer 401, the cooperation of the second anti-corrosion layer 402, fireprotection layer 403, cable shield 5 and crust 6, solves existing cable anti-corrosion effect Difference, thus the problem of influencing cable service life.

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 isolated form steel-cored aluminium strand cable, including inner core (1) and conducting wire (2), it is characterised in that: the conducting wire (2) twines It is wound on the surface of inner core (1), the surface of the conducting wire (2) is coated with the first insulating layer (3), the table of first insulating layer (3) Bread is covered with erosion resistant coating (4)；

The surface of the erosion resistant coating (4) is coated with cable shield (5), and the surface of the cable shield (5) is coated with crust (6), the erosion resistant coating (4) is made of the first anti-corrosion layer (401) and the second anti-corrosion layer (402), and the first anti-corrosion layer (401) it is provided between the second anti-corrosion layer (402) fireprotection layer (403).

2. a kind of isolated form steel-cored aluminium strand cable according to claim 1, it is characterised in that: the table of the crust (6) Face is coated with graphite ene coatings (7), the graphite ene coatings (7) with a thickness of 0.05-0.10mm.

3. a kind of isolated form steel-cored aluminium strand cable according to claim 1, it is characterised in that: the fireprotection layer (403) Using the ethylene propylene rubber insulated layer of flame-retardant, first insulating layer (3) uses soft polyvinyl chloride plastic, and the first insulating layer (3) with a thickness of 0.8-1.0mm.

4. a kind of isolated form steel-cored aluminium strand cable according to claim 1, it is characterised in that: the conducting wire (2) is by leading Body (201), second insulating layer (202) and conductor shield (203) composition, the second insulating layer (202) are coated on conductor (201) surface, the conductor shield (203) are coated on the surface of second insulating layer (202).

5. a kind of isolated form steel-cored aluminium strand cable according to claim 4, it is characterised in that: the conductor shield (203) and the thickness of cable shield (5) is 0.8-1.0mm, and eccentricity is no more than 15%.

6. a kind of isolated form steel-cored aluminium strand cable according to claim 4, it is characterised in that: first insulating layer (3) use soft polyvinyl chloride plastic, and the first insulating layer (3) with a thickness of 0.5-0.8mm.