CN104332230A - Multi-core waterproof cable - Google Patents
Multi-core waterproof cable Download PDFInfo
- Publication number
- CN104332230A CN104332230A CN201410688758.9A CN201410688758A CN104332230A CN 104332230 A CN104332230 A CN 104332230A CN 201410688758 A CN201410688758 A CN 201410688758A CN 104332230 A CN104332230 A CN 104332230A
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- China
- Prior art keywords
- core
- layer
- cable
- conductor
- 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 invention discloses a multi-core waterproof cable. The multi-core waterproof cable comprises a tightening layer (1) and a cable core (2), wherein the tightening layer (1) externally wraps the cable core (2); the cable core (2) comprises a round ground wire core (22) and a plurality of wire cores (21); the round ground wire core (22) is located at the center of the cable core (2); each wire core (21) is composed of a round conductor (211) and an extruded insulating layer (212) extruded outside the round conductor (211). According to the multi-core waterproof cable, a power wire core is of a corrugated structure, so that the structure between the power wire core and the ground wire core is compact; water-absorbing expansion materials such as water-blocking tapes, water-blocking ropes, water-blocking yarns and water-blocking powder are unnecessary to use among wire cores, so that production cost is lowered, and reliable water resistance performance is obtained. The conductors are of a round compacted structure, so that the technical difficulty is low and the insulating layers are prevented from being damaged.
Description
Technical field
The invention belongs to technical field of electric wires and cables, particularly 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 corrugated conductor in prior art, extruded insulation forms stranding after corrugated 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 corrugated conductor: one is that technology difficulty is large, in order to meet the enough flexibilities of corrugated 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, reduces gap between conductor, and corrugated conductor to be corrugated press, the shape of every layer is different, the difficulty increase of pressing; Three is easily cause electric field to concentrate in each angle course of processing of corrugated conductor and damage cable insulation.
Summary of the invention
The present invention overcomes the shortcoming that prior art exists, and 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 of the present invention comprises tightens layer and cable core.Described layer of tightening wraps in outside cable core; Described cable core comprises core and several wire core circularly, and core is positioned at cable core center circularly; Core is made up of round conductor and the extruded insulation layer be extruded in outside round conductor.
As the further improvement of technique scheme, described core is circularly be extruded with circular insulating layer outside bare conductor structure or bare conductor.
Another kind as technique scheme improves, and described round conductor is round compacted comductor or presses circular molded line conductor.
Another kind as technique scheme improves, and described extruded insulation layer is circular or corrugated sheath.
Another kind as technique scheme improves, the circular insulating layer outside described round conductor and arrange one deck or multilayer sheath between extruded insulation layer, and described sheath is armour and/or screen.
Another kind as technique scheme improves, described in tighten layer and be wrapped, vertical bag, weave or extrude.
Another kind as technique scheme improves, described in tighten layer for braiding, braid is coated with pitch.
Another kind as technique scheme improves, and is provided with protective layer between each core described.
Multicore water repellent electric cable of the present invention, power wire core is corrugated structure, and compact conformation between wire core, 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.
Accompanying drawing explanation
Fig. 1 is the multicore water repellent electric cable structural representation of embodiment one;
Fig. 2 is the multicore water repellent electric cable structural representation of embodiment two;
Fig. 3 is the multicore water repellent electric cable structural representation of embodiment three.
Embodiment
Below in conjunction with accompanying drawing, a kind of multicore water repellent electric cable with wire core that the present invention proposes is described in detail.
Embodiment one
As shown in Figure 1, a kind of multicore water repellent electric cable of the present embodiment, comprises and tightens layer 1 and cable core 2.Described layer 1 of tightening wraps in outside cable core 2; Described cable core 2 comprises core 22 and 3 cores 21 circularly, and core 22 is positioned at cable core 2 center circularly, and core 22 is bare conductor structure circularly.Core 21 is made up of round conductor 211 and the extruded insulation layer 212 be extruded in outside round conductor 211.
Described round conductor 211 is for round compacted comductor or press circular molded line conductor.Preferably press circular molded line conductor.
Described extruded insulation layer 212 is circular or corrugated sheath.Circular.Can be squash type or crowded tubular type, preferred squash type.
Described layer 1 of tightening is wrapped, vertical bag, weaves or extrude.Tighten layer 1 and be preferably braid, braid is coated with pitch.
Protective layer is provided with between each core 21 described.
Embodiment two
As shown in Figure 2, a kind of multicore water repellent electric cable of the present embodiment, comprises and tightens layer and cable core.Described layer of tightening wraps in outside cable core; Described cable core comprises core and 4 cores circularly, and core is positioned at cable core center circularly, and core is made up of the circular insulating layer extruded outside bare conductor and bare conductor circularly.Core is made up of round conductor and the extruded insulation layer be extruded in outside round conductor.
Described round conductor is round compacted comductor or presses circular molded line conductor.Preferably press circular molded line conductor.
Described extruded insulation layer is circular or corrugated sheath.Circular.Can be squash type or crowded tubular type, preferred squash type.
Circular insulating layer outside described round conductor and arrange multilayer sheath between extruded insulation layer, described sheath is armour and/or screen.
Described layer of tightening is wrapped, vertical bag, weaves or extrude.Tighten layer and be preferably braid, braid is coated with pitch.
Embodiment three
As shown in Figure 3, a kind of multicore water repellent electric cable of the present embodiment, comprises and tightens layer and cable core.Described layer of tightening wraps in outside cable core; Described cable core comprises core and 5 cores circularly, and core is positioned at cable core center circularly, and core is made up of the circular insulating layer extruded outside bare conductor and bare conductor circularly.Core is made up of round conductor and the extruded insulation layer be extruded in outside round conductor.
Described round conductor is round compacted comductor or presses circular molded line conductor.Preferably press circular molded line conductor.
Described extruded insulation layer is circular or corrugated sheath.Circular.Can be squash type or crowded tubular type, preferred squash type.
Circular insulating layer outside described round conductor and arrange one deck or multilayer sheath between extruded insulation layer, described sheath is armour and/or screen.
Described layer of tightening is wrapped, vertical bag, weaves or extrude.Tighten layer and be preferably braid, braid is coated with pitch.
Claims (8)
1. a multicore water repellent electric cable, comprises and tightens layer (1) and cable core (2), it is characterized in that: described in tighten layer (1) and wrap in cable core (2) outward; Described cable core (2) comprises core (22) and several wire core (21) circularly, and core (22) is positioned at cable core (2) center circularly; Core (21) is by round conductor (211) and be extruded in round conductor (211) extruded insulation layer (212) outward and form.
2. multicore water repellent electric cable according to claim 1, is characterised in that: described core circularly (22) is for being extruded with circular insulating layer outside bare conductor structure or bare conductor.
3. multicore water repellent electric cable according to claim 1, is characterised in that: described round conductor (211) is for round compacted comductor or press circular molded line conductor.
4. multicore water repellent electric cable according to claim 1, is characterised in that: described extruded insulation layer (212) is circular or corrugated sheath.
5. multicore water repellent electric cable according to claim 2, is characterised in that: arrange one deck or multilayer sheath between the outer circular insulating layer of described round conductor (211) and extruded insulation layer (212), described sheath is armour and/or screen.
6. multicore water repellent electric cable according to claim 1, is characterised in that: described in tighten layer (1) and be wrapped, vertical bag, weave or extrude.
7. multicore water repellent electric cable according to claim 6, is characterised in that: described in tighten layer (1) for braiding, braid is coated with pitch.
8. multicore water repellent electric cable according to claim 1, is characterised in that: be provided with protective layer between described each core (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410688758.9A CN104332230A (en) | 2014-11-26 | 2014-11-26 | Multi-core waterproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410688758.9A CN104332230A (en) | 2014-11-26 | 2014-11-26 | Multi-core waterproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104332230A true CN104332230A (en) | 2015-02-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410688758.9A Pending CN104332230A (en) | 2014-11-26 | 2014-11-26 | Multi-core waterproof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104332230A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2296556Y (en) * | 1997-01-17 | 1998-11-04 | 盖州市特种电缆厂 | High temperature resistant fire-proof cable without meal sheath |
| CN2699441Y (en) * | 2004-05-18 | 2005-05-11 | 李明斌 | A high-voltage anti-explosion cable |
| CN201408565Y (en) * | 2009-05-18 | 2010-02-17 | 焦作同心电缆有限公司 | Five-core corrugated wire and cable |
| CN202930069U (en) * | 2012-10-05 | 2013-05-08 | 叶锡和 | Five-core cable |
| CN203503368U (en) * | 2013-10-08 | 2014-03-26 | 江苏苏中电缆厂有限公司 | Polyvinyl chloride insulating polyvinyl chloride sheath waterproof power cable |
| CN103928135A (en) * | 2014-04-26 | 2014-07-16 | 芜湖航天特种电缆厂 | Multi-core cable |
| CN204332475U (en) * | 2014-11-26 | 2015-05-13 | 无锡江南电缆有限公司 | A kind of multicore water repellent electric cable with wire core |
-
2014
- 2014-11-26 CN CN201410688758.9A patent/CN104332230A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2296556Y (en) * | 1997-01-17 | 1998-11-04 | 盖州市特种电缆厂 | High temperature resistant fire-proof cable without meal sheath |
| CN2699441Y (en) * | 2004-05-18 | 2005-05-11 | 李明斌 | A high-voltage anti-explosion cable |
| CN201408565Y (en) * | 2009-05-18 | 2010-02-17 | 焦作同心电缆有限公司 | Five-core corrugated wire and cable |
| CN202930069U (en) * | 2012-10-05 | 2013-05-08 | 叶锡和 | Five-core cable |
| CN203503368U (en) * | 2013-10-08 | 2014-03-26 | 江苏苏中电缆厂有限公司 | Polyvinyl chloride insulating polyvinyl chloride sheath waterproof power cable |
| CN103928135A (en) * | 2014-04-26 | 2014-07-16 | 芜湖航天特种电缆厂 | Multi-core cable |
| CN204332475U (en) * | 2014-11-26 | 2015-05-13 | 无锡江南电缆有限公司 | A kind of multicore water repellent electric cable with wire core |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150204 |