CN204215771U - A kind of multicore water repellent electric cable - Google Patents
A kind of multicore water repellent electric cable Download PDFInfo
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- CN204215771U CN204215771U CN201420719073.1U CN201420719073U CN204215771U CN 204215771 U CN204215771 U CN 204215771U CN 201420719073 U CN201420719073 U CN 201420719073U CN 204215771 U CN204215771 U CN 204215771U
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- water repellent
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The utility model discloses a kind of multicore water repellent electric cable, comprising by being at least three stranded formed circular cable cores of segmentation segment conductor-core; Be outside equipped with at cable core and tighten layer; Described segment conductor-core by round conductor, be extruded in the insulating barrier outside round conductor and outside insulating barrier, be at least provided with layer protective layer and form.The utility model core is sector structure, compact conformation, does not need to use the water uptake expansion materials such as waterstop, waterproofing rope, water blocking yarn, water-proofing powder between core, and reduce production cost, block-water performance is reliable.Conductor adopts circle to press structure, and technology difficulty is little and can not Damage to insulation layer.
Description
Technical field
The utility model relates to cable conductor field, specifically a kind of multicore water repellent electric cable.
Background technology
The intrusion of moisture often power cable suffer to destroy, useful life affected main cause.Moisture immerses approach and mainly invades cable from the sheath of cable and the end of cable, causes the oxidation of conductor, corrosion, thus affects the electrical property of cable, even abnormal broken line accident occurs; Moisture infiltrates insulating barrier, and under the effect of highfield, insulating barrier can produce " water tree ", accelerates the voltage ageing of cable, causes cable breakdown accident, reduces cable useful life.In order to prevent the intrusion of moisture, require between each structure of cable closely very close to each other.
Prior art, in order to prevent the intrusion of moisture, multicore cable is generally many circular cores twisted synthesizing cable together with waterproofing rope or water blocking yarn, wrapped waterstop between primary structure, adopt the method for the water uptake expansion materials such as waterstop, waterproofing rope, water blocking yarn, water-proofing powder of arranging between each structure of cable, a large amount of hydrophilic radical that material water-proof material contains, will imbibition with water short-time contact, can absorb and conduct oneself with dignity into hundred times even water of thousandfold, there is fabulous water-retaining property.This method one is that the use of a large amount of material water-proof material can increase production cost, and two is the modes by water conservation, is absorbing the part of moisture, and moisture still can damage conductor or infiltrate insulating barrier.In order to improve the block-water performance of cable, also usually use sector conductor in prior art, extruded insulation forms stranding after segment conductor-core, and gap between core can be made to drop to minimum, but and gap between sheath still exist.Especially there is an a lot of difficult problem and drawback in process of production in the processing of sector conductor: one is that technology difficulty is large, in order to meet the enough flexibilities of sector conductor and stability, all higher to the characteristic requirements of the design of conductor structure, moulds of industrial equipment, equipment; Two is want conductor to adopt compact conductor for preventing moisture from infiltrating, and to improve the activity coefficient of wire, reduced outside diameter, reduce gap between conductor, and sector conductor is fan-shaped pressing, the shape of every layer is different, and the difficulty of pressing increases; Three is easily cause electric field to concentrate in each angle course of processing of sector conductor and damage cable insulation.
Utility model content
The utility model, in order to solve problems of the prior art, provides a kind of compact conformation, cost is low, technology difficulty is low, multicore water repellent electric cable that block-water performance is good.
A kind of multicore water repellent electric cable described in the utility model, comprises by being at least three stranded formed circular cable cores of segmentation segment conductor-core; Be outside equipped with at cable core and tighten layer; Described segment conductor-core by round conductor, be extruded in the insulating barrier outside round conductor and outside insulating barrier, be at least provided with layer protective layer and form.
Further improvement, described tightening outside layer can be coated with pitch, forms bitumen layer.
Further improvement, described insulating barrier shape can be circular or fan-shaped.
Further improvement, when described protective layer is one deck, this protective layer is fan-shaped armour.
Further improvement, when described protective layer is two-layer, the internal layer of this protective layer is circular shield layer, and outside is fan-shaped armour.
The beneficial effects of the utility model are: compared with prior art, the utility model core is sector structure, compact conformation, does not need to use the water uptake expansion materials such as waterstop, waterproofing rope, water blocking yarn, water-proofing powder between core, reduce production cost, block-water performance is reliable.Conductor adopts circle to press structure, and technology difficulty is little and can not Damage to insulation layer.
Accompanying drawing explanation
The structural representation of Fig. 1 to be the utility model be three segment conductor-cores;
The structural representation of Fig. 2 to be the utility model be four segment conductor-cores;
The structural representation of Fig. 3 to be the utility model be five segment conductor-cores.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
A kind of multicore water repellent electric cable as shown in Figure 1, comprises by three stranded formed circular cable cores of segmentation segment conductor-core; Be outside equipped with at cable core and tighten layer 4; Described segment conductor-core by round conductor 1, be extruded in the insulating barrier 2 outside round conductor 1 and be arranged on the armoured layer 3 of insulating barrier 2 and form; Described tightening outside layer 4 can be coated with pitch, forms bitumen layer.Described insulating barrier 2 is circular.
As shown in Figure 2, be with Fig. 1 difference: this circular cable core splits by four that segment conductor-core is stranded to be formed; Described insulating barrier 2 is fan-shaped.
As shown in Figure 3, be with Fig. 1,2 differences: this circular cable core splits by five that segment conductor-core is stranded to be formed; Circular shield layer 5 and fan-shaped armour 3 is extruded with outside described insulating barrier 2.
The utility model embody rule approach is a lot; the above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvement, these improvement also should be considered as protection range of the present utility model.
Claims (5)
1. a multicore water repellent electric cable, is characterized in that: comprise by being at least three stranded formed circular cable cores of segmentation segment conductor-core; Be outside equipped with at cable core and tighten layer (4); Described segment conductor-core by round conductor (1), be extruded in round conductor (1) insulating barrier outward (2) and at least outside insulating barrier (2), be provided with layer protective layer and form.
2. multicore water repellent electric cable according to claim 1, is characterized in that: described tighten layer (4) and can be coated with pitch outward, forms bitumen layer.
3. multicore water repellent electric cable according to claim 1, is characterized in that: described insulating barrier (2) shape can be circular or fan-shaped.
4. multicore water repellent electric cable according to claim 1, is characterized in that: when described protective layer is one deck, and this protective layer is fan-shaped armour (3).
5. multicore water repellent electric cable according to claim 1, is characterized in that: when described protective layer is two-layer, and the internal layer of this protective layer is circular shield layer (5), and outside is fan-shaped armour (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420719073.1U CN204215771U (en) | 2014-11-27 | 2014-11-27 | A kind of multicore water repellent electric cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420719073.1U CN204215771U (en) | 2014-11-27 | 2014-11-27 | A kind of multicore water repellent electric cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204215771U true CN204215771U (en) | 2015-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420719073.1U Active CN204215771U (en) | 2014-11-27 | 2014-11-27 | A kind of multicore water repellent electric cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN204215771U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104361946A (en) * | 2014-11-27 | 2015-02-18 | 无锡江南电缆有限公司 | Water resistance cable |
| CN106531327A (en) * | 2016-12-30 | 2017-03-22 | 无锡江南电缆有限公司 | Extra large section segmented conductor type armored water-blocking power cable |
| CN106531328A (en) * | 2016-12-30 | 2017-03-22 | 无锡江南电缆有限公司 | Water blocking double-layer single-wire hollow split conductor |
| CN106531290A (en) * | 2016-12-30 | 2017-03-22 | 无锡江南电缆有限公司 | Split conductor-type armored water-blocking power cable |
| CN106531296A (en) * | 2016-12-30 | 2017-03-22 | 无锡江南电缆有限公司 | Four-split water-blocking conductor |
| CN106531294A (en) * | 2016-12-30 | 2017-03-22 | 无锡江南电缆有限公司 | Hollow segmental conductor type water-blocking control cable for train |
| CN106782777A (en) * | 2016-12-30 | 2017-05-31 | 无锡江南电缆有限公司 | A kind of segmentation combination conductor of waterproofing type built-in fiber |
| CN106782847A (en) * | 2016-12-30 | 2017-05-31 | 无锡江南电缆有限公司 | A kind of waterproofing type super-section milliken conductor |
| CN106782846A (en) * | 2016-12-30 | 2017-05-31 | 无锡江南电缆有限公司 | A kind of hollow milliken conductor of multilayer waterproofing type |
-
2014
- 2014-11-27 CN CN201420719073.1U patent/CN204215771U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104361946A (en) * | 2014-11-27 | 2015-02-18 | 无锡江南电缆有限公司 | Water resistance cable |
| CN106531327A (en) * | 2016-12-30 | 2017-03-22 | 无锡江南电缆有限公司 | Extra large section segmented conductor type armored water-blocking power cable |
| CN106531328A (en) * | 2016-12-30 | 2017-03-22 | 无锡江南电缆有限公司 | Water blocking double-layer single-wire hollow split conductor |
| CN106531290A (en) * | 2016-12-30 | 2017-03-22 | 无锡江南电缆有限公司 | Split conductor-type armored water-blocking power cable |
| CN106531296A (en) * | 2016-12-30 | 2017-03-22 | 无锡江南电缆有限公司 | Four-split water-blocking conductor |
| CN106531294A (en) * | 2016-12-30 | 2017-03-22 | 无锡江南电缆有限公司 | Hollow segmental conductor type water-blocking control cable for train |
| CN106782777A (en) * | 2016-12-30 | 2017-05-31 | 无锡江南电缆有限公司 | A kind of segmentation combination conductor of waterproofing type built-in fiber |
| CN106782847A (en) * | 2016-12-30 | 2017-05-31 | 无锡江南电缆有限公司 | A kind of waterproofing type super-section milliken conductor |
| CN106782846A (en) * | 2016-12-30 | 2017-05-31 | 无锡江南电缆有限公司 | A kind of hollow milliken conductor of multilayer waterproofing type |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |