CN107945930A - A kind of pvc sheath braided wires conductor support water-resistant power cable - Google Patents
A kind of pvc sheath braided wires conductor support water-resistant power cable Download PDFInfo
- Publication number
- CN107945930A CN107945930A CN201711464839.0A CN201711464839A CN107945930A CN 107945930 A CN107945930 A CN 107945930A CN 201711464839 A CN201711464839 A CN 201711464839A CN 107945930 A CN107945930 A CN 107945930A
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- CN
- China
- Prior art keywords
- conductor
- cable core
- layer
- cable
- outside
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/006—Constructional features relating to the conductors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
- H01B7/0275—Disposition of insulation comprising one or more extruded layers of insulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
- H01B7/1825—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments forming part of a high tensile strength core
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/22—Metal wires or tapes, e.g. made of steel
- H01B7/221—Longitudinally placed metal wires or tapes
- H01B7/223—Longitudinally placed metal wires or tapes forming part of a high tensile strength core
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/2825—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable using a water impermeable sheath
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
- H01B9/021—Features relating to screening tape per se
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention discloses a kind of pvc sheath braided wires conductor support water-resistant power cable, including cable core, the cable core is twisted by the more insulated wire cores that block water；The centre of cable core is equipped with the supporting item that zinc-coated wire conductor is twisted using medium density polyethylene sheath；Non-hygroscopic sector packing is filled in the gap of cable core, it is overlapping around double-baging without anti-cloth outside cable core, annealing copper wire is first equipped with outside without anti-cloth and dredges after shielded layer the wrapped copper strips tightened to annealing copper wire in gap again, the wrapped waterstop of copper strips external series gap, extrudes medium density polyethylene oversheath outside waterstop.The present invention has very strong water stop function, and rainwater cannot be introduced into conductor, and the oxidation for causing conductor, corrosion will not be immersed because of moisture, so as to influence the electrical property of cable, or even is abnormal line-outage contingency so that the service life of cable greatly improves.
Description
Technical field
It is specifically that a kind of pvc sheath braided wires conductor support blocks water electric power electricity the present invention relates to field of cables
Cable.
Background technology
Further speeded up with the rapid growth of China's economic and industrialization, Development of China's Urbanization, to urban distribution network
Construction requirements etc. infrastructure increasingly improve, and developed regions city requires urban central zone to use ground one after another with provincial capital
Lower power cable transmits electric energy.Meanwhile electric power is the premise and basis of the national economic development, with the quick hair of national economy
Exhibition, electricity needs increase severely, net capacity abruptly increase, and power of motor increase, electric power facility is towards large capacity（High voltage, high current, height
Frequently）Transmission direction develops.
The intrusion of moisture be often power cable by destroy, service life is affected the main reason for.Moisture immerses
Approach is mainly to be invaded from the sheath of cable and the end of cable in the inner conductor of cable, causes oxidation, the corrosion of conductor, from
And the electrical property of cable is influenced, or even it is abnormal line-outage contingency；Moisture penetrates into insulating layer, under the action of highfield, insulation
Layer can produce " water tree ", accelerate the voltage ageing of cable, cause cable breakdown accident, reduce cable service life.In order to prevent
The intrusion of moisture, it is desirable to close very close to each other between each structure of cable.In addition, in long-term use will be because of temperature in use etc.
Some reasons, cause to produce gap between insulation and out semiconductor layer, according to external longtime running experience introduction, semiconductive
The layering of shielding and insulation will directly promote partial discharge quantity constantly to increase, so enable in insulation electricity set or water tree formed with
Development, ultimately results in insulation breakdown.
The content of the invention
The present invention is in order to solve the problems in the existing technology, there is provided a kind of pvc sheath braided wires conductor
Water-resistant power cable is supported, there is very strong water stop function, rainwater cannot be introduced into conductor, will not be immersed because of moisture and cause to lead
Oxidation, the corrosion of body, so as to influence the electrical property of cable, or even are abnormal line-outage contingency so that the service life of cable is big
It is big to improve.
A kind of pvc sheath braided wires conductor support water-resistant power cable of the present invention, including cable core, institute
The cable core stated is twisted by the more insulated wire cores that block water；The centre of cable core is zinc-plated equipped with being twisted using medium density polyethylene sheath
The supporting item of steel wire conductor；Non-hygroscopic sector packing is filled in the gap of cable core, it is overlapping around nothing of double-baging outside cable core
Anti- cloth, annealing copper wire is first equipped with outside without anti-cloth and dredges after shielded layer the wrapped copper strips tightened to annealing copper wire in gap again, copper strips
The wrapped waterstop of external series gap, extrudes medium density polyethylene oversheath outside waterstop.
Further improve, the insulated wire cores that block water include aluminium conductor, and three-layer co-extruded mode is used outside the aluminium conductor
Cross-linking type semiconductive shielding layer, crosslinked polyetylene insulated layer and the not peelable semi-conductive insulation shield of cross-linking type are extruded successively
Layer.
Further improve, the aluminium conductor forms by multiply strand synnema layer-stranding, every layer of strand synnema layering by
The aluminium wire of more a diameter of 2.57mm is composed, and the direction of lay of adjacent two layers is on the contrary, and in every two adjacent layers strand synnema
Wrapped single side semiconductor waterstop between layer.
Further improve, the support member outer diameter is 11.2mm.
Compared with prior art, the beneficial effects of the present invention are：
The present invention is blocked water design by the layering of cable conductor；And in cable conductor external crosslinking type semiconductive shielding layer, crosslinking
The not peelable semi-conductive insulation shield layer of polyethylene layer, cross-linking type and multilayer stop water, both ensure that cable entirety
Longitudinal water-blocking effect, also makes cable conductor and insulation, and insulation has good electric field transition with shielding interlayer, cable is effectively ensured and exists
Under wet environment blocking water requirement and it is safe to use；Also, by the scientific design to cable metallic screens structure, using plastic-aluminum
Composite band and tin plating braiding copper wire are combined composition shielded layer, cable complex environment electromagnetism, electric field shielding are effectively ensured, it is ensured that electricity
Cable shield effectiveness；The design of multilayer stop water, solves that " moisture immerses approach mainly from the sheath of cable and the end of cable
In the inner conductor of portion's intrusion cable, oxidation, the corrosion of conductor are caused, so as to influence the electrical property of cable, or even is abnormal
Line-outage contingency；Moisture penetrates into insulating layer, and under the action of highfield, insulating layer can produce " water tree ", accelerates the electricity of cable old
Change, cause cable breakdown accident, reduce cable service life " the problem of；The intrusion of moisture in order to prevent, each structure of this cable it
Between it is close very close to each other.
Using the not peelable semi-conductive insulation shield layer of cross-linking type, will not cause to produce between insulation and out semiconductor layer
Raw gap, will not cause insulation breakdown, influence the work of cable.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the structure diagram of aluminium conductor.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
A kind of pvc sheath braided wires conductor support water-resistant power cable as shown in Figs. 1-2, including cable core, institute
The cable core stated is twisted by the more insulated wire cores that block water；The insulated wire cores that block water include aluminium conductor 1, outside the aluminium conductor
It is not peelable that cross-linking type semiconductive shielding layer 2, crosslinked polyetylene insulated layer 3 and cross-linking type are extruded using three-layer co-extruded mode successively
From semi-conductive insulation shield layer 4；The aluminium conductor is formed by multiply strand synnema layer-stranding, the layering of every layer of strand synnema by
The aluminium wire 12 of more a diameter of 2.57mm is composed, and the direction of lay of adjacent two layers is on the contrary, and in every two adjacent layers strand beam
Non-woven fabrics 13 between silk layer.
The centre of cable core is equipped with the supporting item 5 that zinc-coated wire conductor is twisted using medium density polyethylene sheath, supporting item
Outside diameter is 11.2mm；It is overlapping around double-baging without anti-cloth outside cable core in the gap of cable core filling non-hygroscopic sector packing 6
7, annealing copper wire is first equipped with outside without anti-cloth and dredges after shielded layer 8 the wrapped copper strips 9 tightened to annealing copper wire in gap again, outside copper strips
The wrapped waterstop 10 in gap, extrudes medium density polyethylene oversheath 11 outside waterstop.
Concrete application approach of the present invention is very much, and the above is only the preferred embodiment of the present invention, it is noted that for
For those skilled in the art, without departing from the principle of the present invention, some improvement can also be made, this
A little improve also should be regarded as protection scope of the present invention.
Claims (4)
1. a kind of pvc sheath braided wires conductor support water-resistant power cable, including cable core, it is characterised in that：Described
Cable core is twisted by the more insulated wire cores that block water；The centre of cable core is equipped with is twisted zinc-coated wire using medium density polyethylene sheath
The supporting item of conductor；Non-hygroscopic sector packing is filled in the gap of cable core, it is overlapping around double-baging without anti-cloth outside cable core,
Annealing copper wire is first equipped with outside without anti-cloth and dredges after shielded layer the wrapped copper strips tightened to annealing copper wire in gap again, copper strips external series gap
Wrapped waterstop, extrudes medium density polyethylene oversheath outside waterstop.
2. pvc sheath braided wires conductor support water-resistant power cable according to claim 1, it is characterised in that：
The insulated wire cores that block water include aluminium conductor, use three-layer co-extruded mode to extrude cross-linking type semiconductive successively outside the aluminium conductor
The not peelable semi-conductive insulation shield layer of shielded layer, crosslinked polyetylene insulated layer and cross-linking type.
3. pvc sheath braided wires conductor support water-resistant power cable according to claim 2, it is characterised in that：
The aluminium conductor is formed by multiply strand synnema layer-stranding, and every layer of strand synnema is layered the aluminium wire by more a diameter of 2.57mm
It is composed, the direction of lay of adjacent two layers is on the contrary, and the wrapped single side semiconductive between every two adjacent layers strand synnema layer
Waterstop.
4. pvc sheath braided wires conductor support water-resistant power cable according to claim 1, it is characterised in that：
The outside diameter of the supporting item is 11.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711464839.0A CN107945930A (en) | 2017-12-28 | 2017-12-28 | A kind of pvc sheath braided wires conductor support water-resistant power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711464839.0A CN107945930A (en) | 2017-12-28 | 2017-12-28 | A kind of pvc sheath braided wires conductor support water-resistant power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107945930A true CN107945930A (en) | 2018-04-20 |
Family
ID=61940701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711464839.0A Withdrawn CN107945930A (en) | 2017-12-28 | 2017-12-28 | A kind of pvc sheath braided wires conductor support water-resistant power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107945930A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109830337A (en) * | 2019-03-30 | 2019-05-31 | 兰州众邦电线电缆集团有限公司 | Three core overhead insulated cables and preparation method thereof are pressed in tension waterproof ice snow type |
| CN110491582A (en) * | 2019-09-03 | 2019-11-22 | 安徽凌宇电缆科技有限公司 | A kind of naval vessel is blocked water with the anti-seawater corrosion of antiultraviolet can load low-voltage cable |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360618A (en) * | 2011-11-04 | 2012-02-22 | 安徽新亚特电缆集团有限公司 | Submarine power cable and method for manufacturing submarine power cable |
| CN104810107A (en) * | 2014-10-11 | 2015-07-29 | 安徽明星电缆有限公司 | Novel electrified railway cable and manufacture process thereof |
| CN205645385U (en) * | 2016-04-25 | 2016-10-12 | 铭品电缆集团有限公司 | Variable frequency cable |
| CN106128606A (en) * | 2016-08-30 | 2016-11-16 | 无锡江南电缆有限公司 | A kind of crosslinked polyetylene insulated waterproof Anti-termite power cable of copper core |
| CN106205802A (en) * | 2016-08-30 | 2016-12-07 | 无锡江南电缆有限公司 | A kind of copper core cross-linked polyethylene insulated steel wire armored Anti-termite power cable |
-
2017
- 2017-12-28 CN CN201711464839.0A patent/CN107945930A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360618A (en) * | 2011-11-04 | 2012-02-22 | 安徽新亚特电缆集团有限公司 | Submarine power cable and method for manufacturing submarine power cable |
| CN104810107A (en) * | 2014-10-11 | 2015-07-29 | 安徽明星电缆有限公司 | Novel electrified railway cable and manufacture process thereof |
| CN205645385U (en) * | 2016-04-25 | 2016-10-12 | 铭品电缆集团有限公司 | Variable frequency cable |
| CN106128606A (en) * | 2016-08-30 | 2016-11-16 | 无锡江南电缆有限公司 | A kind of crosslinked polyetylene insulated waterproof Anti-termite power cable of copper core |
| CN106205802A (en) * | 2016-08-30 | 2016-12-07 | 无锡江南电缆有限公司 | A kind of copper core cross-linked polyethylene insulated steel wire armored Anti-termite power cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109830337A (en) * | 2019-03-30 | 2019-05-31 | 兰州众邦电线电缆集团有限公司 | Three core overhead insulated cables and preparation method thereof are pressed in tension waterproof ice snow type |
| CN110491582A (en) * | 2019-09-03 | 2019-11-22 | 安徽凌宇电缆科技有限公司 | A kind of naval vessel is blocked water with the anti-seawater corrosion of antiultraviolet can load low-voltage cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180420 |
|
| WW01 | Invention patent application withdrawn after publication |