CN209281942U - A kind of polyolefin jacket power cable - Google Patents
A kind of polyolefin jacket power cable Download PDFInfo
- Publication number
- CN209281942U CN209281942U CN201920352894.9U CN201920352894U CN209281942U CN 209281942 U CN209281942 U CN 209281942U CN 201920352894 U CN201920352894 U CN 201920352894U CN 209281942 U CN209281942 U CN 209281942U
- Authority
- CN
- China
- Prior art keywords
- polytetrafluoroethylene film
- polyolefin jacket
- cable
- layer
- semi
- 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.)
- Active
Links
Classifications
-
- 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
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model discloses a kind of polyolefin jacket power cables, crosslinking copper core conductor including being located at cable centerline, the crosslinking copper core conductor is equipped with polytetrafluoroethylene film belting layer, the polytetrafluoroethylene film belting layer is externally provided with silver-coated copper wire braiding structure, polytetrafluoroethylene film wrapping layer is equipped with outside the silver-coated copper wire braiding structure, the polytetrafluoroethylene film wrapping layer is externally provided with crosslinked polyethylene sheath, the outside wall surface of the crosslinked polyethylene sheath is equipped with semi-circular projected part, tensile steel wire is equipped in the semi-circular projected part, Kev bracing wire is wound on the tensile steel wire, the crosslinked polyethylene sheath is externally provided with polyolefin jacket；The utility model proposes this polyolefin jacket cable, hierarchical structure and sheath shape to cable improve, and improves resistance to compression, the tensile resistance of cable, while also coping with the erosion by wind and rain in extraneous natural environment, improves cable service life.
Description
Technical field
The utility model belongs to power cable product technical field more particularly to a kind of polyolefin jacket power cable.
Background technique
Olefin polymer is the α-alkene such as ethylene, propylene, 1- butylene, 1- amylene, 1- hexene, 1- octene, 4-methyl-1-pentene
Hydrocarbon and certain cycloolefins be polymerized alone or combined polymerization obtained from one kind thermoplastic resin general name.Polyolefin has relatively close
The advantages of spending small, chemical resistance, water-tolerant, while also there are quite high mechanical strength and electrical isolation capabilities.China
Possess maximum power supply network in the world, therefore also very high to the demand of electric power cable, while to the quality of cable
There is higher requirement.
The use environment of electric power cable is mostly outdoor, it is therefore desirable to the erosion of outdoor wind and rain is born, in order to improve cable
Service life, therefore many outdoor electric cables are all that cable is provided with sheath.Chinese patent document CN201811054831
A kind of cable using polyvinyl chloride insulation sheath is disclosed, it is exhausted to be enclosed with ethylene-propylene diene copolymer for the periphery of core in patent formula
Edge skin improves the insulation performance of cable with this, while reinforcing mechanisms and supporting mechanism are provided in cable, is improved with this
The antiwear property of cable, the program have the drawback that cable inner structure is excessively complicated, are unfavorable for the production and processing of cable.
An other Chinese patent CN201820866294 discloses a kind of low smoke halogen-free flame-retardant polyolefin that non-crosslinked insulation is heat-resisting circle
Shape jacketed cable, the optimization content of the program are between the inner sheath and sheath of cable to be mutually engaged by groove structure, reach
It is deviated relatively to avoiding the problem that it is generated, the disadvantages of this solution is that cable jacket can only be flexible material, groove structure pole
It is also easy to produce deformation, is unable to reach the effect of limiting displacement.
Utility model content
It is right the utility model proposes a kind of polyolefin jacket cable in order to solve the problems of the above-mentioned prior art
The hierarchical structure and sheath shape of cable improve, and improve resistance to compression, the tensile resistance of cable, while also coping with outer
Erosion by wind and rain in boundary's natural environment improves cable service life.
The technical solution of the utility model is achieved in that
A kind of polyolefin jacket cable, the crosslinking copper core conductor including being located at cable centerline, which is characterized in that the crosslinking
Copper core conductor is equipped with polytetrafluoroethylene film belting layer, and the polytetrafluoroethylene film belting layer is externally provided with silver-coated copper wire braiding knot
Structure, silver-coated copper wire braiding structure outside are equipped with polytetrafluoroethylene film wrapping layer, the polytetrafluoroethylene film wrapping layer peripheral hardware
Crosslinking pe sheath, the outside wall surface of the crosslinked polyethylene sheath are equipped with semi-circular projected part, set in the semi-circular projected part
There is tensile steel wire, Kev bracing wire is wound on the tensile steel wire, the tensile steel wire is located at the center point of semi-circular projected part, institute
It states crosslinked polyethylene sheath and is externally provided with polyolefin jacket, the semi-circular projected part on the polyolefin jacket and crosslinked polyethylene sheath
It leans, aerogel blanket filled layer, the polyolefin shield is equipped in the region between two adjacent semi-circular projected parts
Set is equipped with groove with the inner wall that aerogel blanket filled layer fits, and is equipped with sealant filled layer in the groove.
In the present invention, the tensile steel wire is C grades of steel cores.
In the present invention, the sealant filled layer is curing type rigid seal glue.
In the present invention, the polytetrafluoroethylene film belting layer is solid poly- four vinyl film, the polytetrafluoro
Vinyl film wrapping layer is expanded microporous polytetra fluoroethylene-EPTEE film.
Compared with prior art, implement this polyolefin jacket cable in the utility model, have the advantages that
Polytetrafluoroethylene film will be crosslinked copper core conductor respectively by band and wrapped two kinds of forms and silver-coated copper wire braiding structure wraps up
It is main, make full use of polytetrafluoroethylene (PTFE) successively the proof voltage energy of material and pressure-resistant performance；Polyolefin jacket is as outer protective simultaneously
It is mutually adhered to by sealant filled layer with aerogel blanket filled layer between set and crosslinked polyethylene sheath, avoids two adjacent lines
Opposite offset is generated between cable.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
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.
This polyolefin jacket cable as shown in Figure 1, the crosslinking copper core conductor 1 including being located at cable centerline, is crosslinked copper
Core conductor 1 is equipped with polytetrafluoroethylene film belting layer 11, and polytetrafluoroethylene film belting layer 11 is externally provided with silver-coated copper wire braiding knot
Structure 12, polytetrafluoroethylene film wrapping layer 13 is equipped with outside the silver-coated copper wire braiding structure 12, and the polytetrafluoroethylene film is wrapped
Layer 13 is externally provided with crosslinked polyethylene sheath 14, and the outside wall surface of the crosslinked polyethylene sheath 14 is equipped with semi-circular projected part 15, should be partly
It is equipped with tensile steel wire 16 in rounded projections 15, is wound with Kev bracing wire on the tensile steel wire 16, tensile steel wire 16 is located at semicircle
The center point of shape lug boss 15.
As a preferred option, polytetrafluoroethylene film belting layer 11 is solid poly- four vinyl film, and polytetrafluoroethylene (PTFE) is thin
Film wrapping layer 13 is expanded microporous polytetra fluoroethylene-EPTEE film.Solid polytetrafluoroethylene film belting layer 11 has stronger proof voltage
It can be with higher disruptive field intensity；The wrapping layer of expanded microporous polytetra fluoroethylene-EPTEE film then has preferable high temperature resistance.
Crosslinked polyethylene sheath 14 is externally provided with polyolefin jacket 17, on the polyolefin jacket 17 and crosslinked polyethylene sheath 14
Semi-circular projected part 15 lean, in the region between two adjacent semi-circular projected parts 15 be equipped with aerogel blanket filled layer
18, the inner wall that polyolefin jacket 17 and aerogel blanket filled layer 18 fit is equipped with groove 19, is equipped in the groove 19 close
Sealing filled layer.
Polyolefin jacket 14 as oversheath and crosslinked polyethylene sheath 14 is then used as internal jacket, crosslinked polyethylene with it is general
Logical polythene material is compared, and is not only to significantly improve mechanical property, environmental stress resistance is opened by cross-linking modified PE material
The comprehensive performances such as fragility energy, resistance to corrosive chemicals energy, creep resistance and electrical property, and be readily apparent that improve heatproof
Grade can make the heat resisting temperature of PE material be increased to 100 DEG C or more from 70 DEG C, play the outermost fire protection flame retarding function of cable.
Aerogel blanket filled layer 18 is splendid heat-insulating material, can be avoided external high temperature and has an impact to cable core conductor, while also can
Influence when enough avoiding core self-heating to its outer sheath layer.
In the present solution, tensile steel wire 16 is C grades of steel cores.
In the present solution, sealant filled layer is curing type rigid seal glue.Curability rigid seal glue has after solidification
There is certain degree of hardness, rigid limit is also functioned to while by polyolefin jacket 17 and bonding aerogel blanket filled layer 18 and is made
With preventing the circle circumferential offset between polyolefin jacket 17 and crosslinked polyethylene sheath 14.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, made any modification, equivalent replacement and improvement etc. should be included in the utility model
Protection scope within.
Claims (4)
1. a kind of polyolefin jacket power cable, the crosslinking copper core conductor including being located at cable centerline, which is characterized in that the friendship
Join copper core conductor and be equipped with polytetrafluoroethylene film belting layer, the polytetrafluoroethylene film belting layer is externally provided with silver-coated copper wire braiding
Structure, is equipped with polytetrafluoroethylene film wrapping layer outside silver-coated copper wire braiding structure, outside the polytetrafluoroethylene film wrapping layer
Equipped with crosslinked polyethylene sheath, the outside wall surface of the crosslinked polyethylene sheath is equipped with semi-circular projected part, in the semi-circular projected part
Equipped with tensile steel wire, Kev bracing wire is wound on the tensile steel wire, the tensile steel wire is located at the center point of semi-circular projected part,
The crosslinked polyethylene sheath is externally provided with polyolefin jacket, the semi-cylindrical hill on the polyolefin jacket and crosslinked polyethylene sheath
Portion leans, and aerogel blanket filled layer, the polyolefin are equipped in the region between two adjacent semi-circular projected parts
The inner wall that sheath and aerogel blanket filled layer fit is equipped with groove, is equipped with sealant filled layer in the groove.
2. a kind of polyolefin jacket power cable according to claim 1, which is characterized in that the tensile steel wire is C grades
Steel core.
3. a kind of polyolefin jacket power cable according to claim 2, which is characterized in that the sealant filled layer is
Curing type rigid seal glue.
4. a kind of polyolefin jacket power cable according to claim 3, which is characterized in that the polytetrafluoroethylene film
Belting layer is solid poly- four vinyl film, and the polytetrafluoroethylene film wrapping layer is expanded microporous polytetra fluoroethylene-EPTEE film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920352894.9U CN209281942U (en) | 2019-03-20 | 2019-03-20 | A kind of polyolefin jacket power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920352894.9U CN209281942U (en) | 2019-03-20 | 2019-03-20 | A kind of polyolefin jacket power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209281942U true CN209281942U (en) | 2019-08-20 |
Family
ID=67606603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920352894.9U Active CN209281942U (en) | 2019-03-20 | 2019-03-20 | A kind of polyolefin jacket power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209281942U (en) |
-
2019
- 2019-03-20 CN CN201920352894.9U patent/CN209281942U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104361945B (en) | A kind of Halogen-free flame-retardant low-temperature resistant is pressed the preparation method of wind energy cable | |
| CN206758178U (en) | A kind of medium voltage converter cable | |
| RU138403U1 (en) | POWER CABLE FOR VOLTAGE 6-35 KV | |
| CN209281942U (en) | A kind of polyolefin jacket power cable | |
| CN106057337A (en) | Below-35kV copper core and aluminum core coaxial composite plastic insulated cable | |
| CN105139935A (en) | Crosslinked insulation polyethylene power cable | |
| CN204270715U (en) | Wind energy cable is pressed in a kind of Halogen-free flame-retardant low-temperature resistant | |
| CN208271625U (en) | A kind of crosslinked polyetylene insulated pvc sheath cable of flexibility folding | |
| CN109096953A (en) | A kind of submarine cable blocks water sealant and its manufacturing method | |
| CN207800161U (en) | A kind of multi-core power cable | |
| WO2012073303A1 (en) | Water blocking electric cable | |
| CN106243478A (en) | A kind of ceramic fireproof cable material of polyolefin and preparation method thereof | |
| CN213277568U (en) | Low-smoke halogen-free flame-retardant optical fiber composite low-voltage marine cable | |
| CN209103838U (en) | A kind of Intelligent household signal transmission cable | |
| CN210182130U (en) | Ultraviolet-resistant environment-friendly concentric cable integrating electrification and communication | |
| CN209785616U (en) | High-temperature-resistant electric wire | |
| CN208335799U (en) | A kind of wind proof insulated conductor | |
| CN111370167A (en) | Cable for electric automobile charging pile | |
| CN205194397U (en) | Alkaline -resisting waterproof cable is used to water pump | |
| CN219303355U (en) | Insulated wire | |
| CN219085673U (en) | Corrosion-resistant polyvinyl chloride insulated cable | |
| CN204480715U (en) | A kind of power cable with cross-linked polyethylene insulation | |
| CN215577745U (en) | Flame-retardant modified ternary silicone rubber insulated cable | |
| CN221551551U (en) | Cable with fireproof and moistureproof protective layer | |
| CN216957508U (en) | Capacity-increasable overhead insulated cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |