CN205810443U

CN205810443U - A kind of buried cable structure

Info

Publication number: CN205810443U
Application number: CN201620644968.2U
Authority: CN
Inventors: 赵洁
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-06-27
Filing date: 2016-06-27
Publication date: 2016-12-14
Anticipated expiration: 2026-06-27

Abstract

This utility model provides a kind of buried cable structure, belongs to field of cable technology.A kind of buried cable structure, including cable body, described cable body includes leading core, insulating barrier I, inner liner, the first water blocking layer, protective metal shell, the second water blocking layer and serving the most successively, described core of leading is many, described lead core outsourcing insulation II, described core of leading is that at least 2 stranded 1 carbon fiber lines of aluminum conductor spiral are constituted, the described gap interpolation water-proofing powder leading core and described insulating barrier II, described leading arranges crosslinked polyolefin layer between core, the outer surface of described serving arranges anticorrosive coat.This utility model carries out improvement and the optimization of structure to existing buried cable, makes the combination property of cable be improved, and especially corrosion resistance significantly improves, and block-water performance is excellent, and stability is strong.

Description

A kind of buried cable structure

Technical field

This utility model belongs to field of cable technology, is specifically related to a kind of buried cable structure.

Background technology

Cable is made up of conductor outsourcing insulation and the protective layer of one or more mutually insulated, for by electric power or letter Breath is delivered to the wire at another at one.Buried cable, compares with common aerial line, is often embedded in underground.It is different from overhead High-tension line, cable is often layed in cable duct, tunnel, pipeline or indoor.After entering modern society, owing to urban land is nervous, The reasons such as traffic pressure is big, appearance of the city construction, big city commonly used buried cable power transmission mode.Buried cable is owing to being in underground Environment, as easy as rolling off a log destroyed or corrosion, therefore, most of buried cable all can be loaded in pipeline, pipeline outside completely cutting off Boundary's environment, thus reach to protect the purpose of cable；But a lot of uncontrollable factors can cause piping failure, so that cable is sudden and violent Be exposed in outside underground environment, be so easily caused cable water inlet or corrosion, greatly reduce cable service life and The safety of underground activities.At present, the cable of prior art scarcely designs for underground environment, and people are to buried cable Safety only rely only on pipe protection, but we cannot monitor the whether damage of pipeline the moment, even and if monitoring pipe Road damages, it is also desirable to the maintenance of long period, now, the requirement to cable is higher.

For above-mentioned present situation, prior art occur in that much for the protection against the tide of buried cable, anticorrosion and waterproof etc. carry out excellent The measure changed and improve.Application No. 201520796612.6 discloses a kind of moisture-resisting water-proof type cable, including insulated wire cores, institute Stating insulated wire cores and include oxygen-free copper conductor, outside described oxygen-free copper conductor, from-inner-to-outer is surrounded with the first waterstop successively, extrudes friendship Connection polyethylene insulation, wrapped second waterstop；Many described insulated wire cores twisted synthesizing cables are also tightened by non-woven fabrics, described insulation Core gap is filled with the gasket for packing that blocks water, and described non-woven fabrics outer layer is surrounded with buffer water-blocking band, and described buffer water-blocking band outer layer is indulged It is surrounded by ripple type protective metal shell, is coated with bitumen layer outside described protective metal shell, outside described bitumen layer, is extruded with outer protective polyethylene set. This cable is provided simultaneously with longitudinal direction, radially waterproof construction, and water preventing ability is good, can be effectively prevented from cable and easily produce absolutely in water for a long time The insulation breakdown that edge water tree is aging and causes, extends the service life of cable effectively.Technology disclosed above is for cable The defect such as moistureproof, waterproof has carried out the optimization in structure and improvement, to improve the service life of cable, but in practical application In, there is block-water effect poor stability, the problem of combination property relative drop.

Utility model content

In view of this, the purpose of this utility model is to provide a kind of buried cable structure, and this cable block-water performance is excellent, surely Qualitative effectively prevent corrosion and the chemical depletion of cable by force simultaneously, improve the combination property of cable.

For achieving the above object, this utility model be the technical scheme is that

A kind of buried cable structure, including cable body, described cable body includes leading core, insulating barrier the most successively I, inner liner, the first water blocking layer, protective metal shell, the second water blocking layer and serving, described in lead core be many, described in lead core outsourcing exhausted Edge layer II, described in lead core be that stranded 1 carbon fiber line of at least 2 aluminum conductor spirals are constituted, described in lead core and described insulating barrier II Gap add water-proofing powder, described in lead crosslinked polyolefin layer be set between core, the outer surface of described serving arranges anticorrosive coat.

Preferably, described first water blocking layer is entwined by waterstop.

Preferably, described second water blocking layer is hydroscopicity expanding water-blocking material layer.

Preferably, described insulating barrier I is glass layer.

Preferably, described anticorrosive coat arranges the identification pattern of protrusion, and the thickness of described anticorrosive coat is 0.3 ~ 0.8 millimeter.

Compared to existing technology, it has the beneficial effect that this utility model:

This utility model is perishable for existing buried cable, easy by practical problems such as water soakings, devises a kind of underground The construction of cable, by carrying out structure optimization to cable, it is achieved effectively prevents the corrosion and damage of cable, and block-water performance is excellent, stable Property strong, the effect substantially increased service life.Moistureproof buried cable of the present utility model, including cable body, described cable is originally Body includes leading core, insulating barrier I, inner liner, the first water blocking layer, protective metal shell, the second water blocking layer and serving the most successively, Wherein, described in lead core be many, described in lead core outsourcing insulation II, insulating barrier II uses the mode of outsourcing and leads core and be combined, with Reduce deformation and the extruding leading core.By arranging the first water blocking layer and the second water blocking layer horizontal water preventing ability with raising cable, anti- Sealing divides entrance.Meanwhile, described in lead between core filling cross-linked polyolefin, cross-linked polyolefin compares common polyolefin, is extending, resistance to Oil, cold-resistant, the aspect performance boost such as crack resistence is a lot.In this utility model, the outer surface of described serving arranges anticorrosive coat, Strengthen corrosion resistance.Secondly, in order to strengthen the longitudinal water-blocking of cable, with after moisture enters cable, prevent it along longitudinally Diffusion, core of leading of the present utility model uses following structure: described in lead core be at least 2 stranded 1 carbon fiber lines of aluminum conductor spiral Constitute, described in lead the gap of core and described insulating barrier II and add water-proofing powder, said structure enhances the machines such as the resistance to compression of cable, tension Tool performance, meanwhile, is obviously reduced the longtitudinal dispersion ability of moisture, improves the combination property of cable.

This utility model, based on present situation, carries out improvement and the optimization of structure targetedly, makes existing buried cable Its combination property is improved, and especially corrosion resistance significantly improves, and block-water performance is excellent, and stability is strong.

Accompanying drawing explanation

Below in conjunction with the accompanying drawings this utility model is described in further detail.

Fig. 1: the structural representation of this utility model embodiment 1；

Fig. 2: this utility model Fig. 1 leads the structural representation of core；

Fig. 3: the structural representation of this utility model embodiment 2；

Wherein: 1-leads core, 2-insulating barrier I, 3-inner liner, 4-the first water blocking layer, 5-protective metal shell, 6-the second water blocking layer, 7-serving, 8-aluminum conductor, 9-carbon fiber line, 10-insulating barrier II, 11--water-proofing powder, 12-crosslinked polyolefin layer, 13-anticorrosion Layer, 14-identification pattern.

Detailed description of the invention

In order to be more fully understood that this utility model, fairly set out of the present utility model interior further below in conjunction with embodiment Hold, but protection content of the present utility model is not limited solely to the following examples.In the following description, big measurer is given The details of body is to provide and understanding this utility model the most thoroughly.But, the most aobvious and easy Seeing, this utility model can be carried out without these details one or more.Embodiment 1

Refering to Fig. 1 ~ 2, a kind of buried cable structure, including cable body, described cable body includes the most successively Lead core 1, insulating barrier I 2, inner liner the 3, first water blocking layer 4, protective metal shell the 5, second water blocking layer 6 and serving 7, described in lead core 1 and be Many, described in lead core 1 outsourcing insulation II 10, described in lead core 1 be stranded 1 carbon fiber line 9 structure of at least 2 aluminum conductors 8 spiral Become, described in lead the gap of core 1 and described insulating barrier II 10 and add water-proofing powder 11, described in lead between core 1, crosslinked polyolefin layer be set 12, the outer surface of described serving 7 arranges anticorrosive coat 13.

In this utility model, described first water blocking layer 4 is entwined by waterstop.Described second water blocking layer 6 is swollen for water suction Swollen type material water-proof material layer, as expanded water blocking yarn, swelling gel or water swelling rubber.Blocked water by the first water blocking layer 4 and second Layer 6 is combined with the reasonably optimizing of the construction of cable, can significantly improve and improve the block-water performance of cable, and protective metal shell 5 Arrange, the bulbs of pressure of the second water blocking layer 6 can be weakened.

In this utility model, described insulating barrier I is glass layer, and glassfiber insulation performance is good, and hot strength is big, bullet Property coefficient is big, and properties is excellent.

Refering to Fig. 2, described in lead core 1 be that 8 stranded 1 carbon fiber lines 9 of aluminum conductor 8 spiral are constituted, described in lead core 1 with described Water-proofing powder 11 is added in the gap of insulating barrier II 10, strengthens the intensity leading core, prevents from being dug disconnected, strengthens block-water performance simultaneously.

Embodiment 2

Refering to Fig. 1 ~ 3, a kind of buried cable structure, a kind of buried cable structure, including cable body, described cable body Include leading core 1, insulating barrier I 2, inner liner the 3, first water blocking layer 4, protective metal shell the 5, second water blocking layer 6 and outer the most successively Tegillum 7, with embodiment 1 except that:

Described anticorrosive coat 13 arranges the identification pattern 14 of protrusion, and the thickness of described anticorrosive coat is 0.3 ~ 0.8 millimeter.Arrange convex The identification pattern 14 gone out to show cable identification, in order to anti-dig disconnected, preferably at the surface configuration reflective material layer of identification pattern 14.

Although the foregoing describing detailed description of the invention of the present utility model, but those familiar with the art should Working as understanding, our described specific embodiment is merely exemplary rather than for the limit to scope of the present utility model Fixed, those of ordinary skill in the art, in the equivalent modification made according to spirit of the present utility model and change, should Contain in scope of the claimed protection of the present utility model.

Claims

1. a buried cable structure, including cable body, it is characterised in that: described cable body includes leading the most successively Core, insulating barrier I, inner liner, the first water blocking layer, protective metal shell, the second water blocking layer and serving, described in lead core be many, described Lead core outsourcing insulation II, described in lead core be that stranded 1 carbon fiber line of at least 2 aluminum conductor spirals are constituted, described in lead core and institute Water-proofing powder is added in the gap stating insulating barrier II, described in lead crosslinked polyolefin layer be set between core, the outer surface of described serving sets Put anticorrosive coat.

2. buried cable structure as claimed in claim 1, it is characterised in that: described first water blocking layer be wound around by waterstop and Become.

3. buried cable structure as claimed in claim 1, it is characterised in that: described second water blocking layer is hydroscopicity expanding water-blocking Material layer.

4. buried cable structure as claimed in claim 1, it is characterised in that: described insulating barrier I is glass layer.

5. buried cable structure as claimed in claim 1, it is characterised in that: described anticorrosive coat arranges the identification pattern of protrusion, The thickness of described anticorrosive coat is 0.3 ~ 0.8 millimeter.