CN211628754U - 10KV multi-core overhead insulated sheath cable - Google Patents
10KV multi-core overhead insulated sheath cable Download PDFInfo
- Publication number
- CN211628754U CN211628754U CN201922458809.XU CN201922458809U CN211628754U CN 211628754 U CN211628754 U CN 211628754U CN 201922458809 U CN201922458809 U CN 201922458809U CN 211628754 U CN211628754 U CN 211628754U
- Authority
- CN
- China
- Prior art keywords
- layer
- cable
- conductor
- insulating
- overhead insulated
- 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
Images
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
Abstract
A10 KV multi-core overhead insulated sheath cable is provided with a plurality of groups of wire cores and an outer sheath layer, wherein the outer sheath layer covers the outer surfaces of the plurality of groups of wire cores, each group of wire cores is sequentially provided with a conductor layer, a conductor shielding layer, an insulating layer and an insulating shielding layer from the center to the outside, the conductor shielding layer is uniformly covered on the conductor layer, the insulating layer is tightly extruded on the conductor shielding layer, and the insulating shielding layer covers the insulating layer. This 10KV multicore aerial insulated sheath cable uses PVC polyvinyl chloride crowded package oversheath layer, because polyvinyl chloride has extremely strong weatherability and stability, not only can reduce the ageing and the damage of cable outer screen in the relatively poor area of environment, improves the security of cable and increases the life of cable, also can make the cable change simultaneously and lay in advance, the loose phenomenon of sinle silk can not appear.
Description
Technical Field
The utility model relates to a wire and cable technical field, in particular to 10KV multicore aerial insulated sheath cable.
Background
The electric wire and the cable are used as main carriers of power transmission and widely applied to the aspects of electric equipment, lighting circuits, household appliances and the like. The wire and cable industry is the second industry in China, which is second to the automobile industry, and the product variety satisfaction rate and the domestic market share of the wire and cable industry both exceed 90 percent. The total yield of the electric wires and cables in China exceeds the United states worldwide, and the electric wires and cables become the first country for producing the electric wires and cables in the world.
The basic structure of the wire and cable mainly comprises the following 4 parts: conductive cells, insulating layers, sealing sheaths and protective coverings, which may be classified as power cables, communication cables and control cables according to the purpose. When the cable is used, the cable can be subdivided into a plurality of laying modes such as overhead, underground, underwater, walls, tunnels and the like according to different occasions. The traditional overhead cable has poor bending property of an insulated wire core, and is easy to loose and the like after being cabled with a steel core, so that the overhead cable is difficult to lay.
Therefore, in order to overcome the defects of the prior art, it is necessary to provide a 10KV multi-core overhead insulated sheathed cable.
SUMMERY OF THE UTILITY MODEL
The utility model aims to avoid the defects of the prior art and provide a 10KV multicore overhead insulated sheath cable, which is necessary to solve the defects of the prior art. The 10KV multi-core overhead insulated sheath cable can reduce the aging and damage of an outer screen, improve the safety performance of the cable, prolong the service life of the cable and facilitate the laying of the cable when in use.
The above object of the present invention is achieved by the following technical means.
A10 KV multi-core overhead insulated sheath cable is provided with a plurality of groups of wire cores and an outer sheath layer, wherein the outer sheath layer is coated on the outer surfaces of the plurality of groups of wire cores.
Preferably, each group of wire cores is sequentially provided with a conductor layer, a conductor shielding layer, an insulating layer and an insulating shielding layer from the center to the outside;
the conductor shielding layer is uniformly coated on the conductor layer, the insulating layer is tightly extruded on the conductor shielding layer, and the insulating shielding layer covers the insulating layer.
Preferably, the outer sheath layer is formed by extruding PVC and PVC insulating materials.
Preferably, the thickness of the thinnest part of the outer sheath layer is set to be M, and M is larger than or equal to 2.81 mm.
Preferably, multiple groups of wire cores are stranded into a cable, the cable pitch diameter ratio is set to be N, and N is less than 25.
Preferably, the twisting direction of the multiple groups of wire cores is clockwise twisting or anticlockwise twisting.
Preferably, the conductor layer is formed by twisting a plurality of L8 or L9 type hard round aluminum wires.
Preferably, the conductor shielding layer is formed by extruding thermoplastic semi-conductive shielding material or peroxide crosslinking semi-conductive shielding material.
Preferably, the insulating layer is formed by extruding a black mixed material YJG-10 on a substrate made of weather-resistant high-density polyethylene and cross-linked polyethylene.
Preferably, the insulation shield layer is formed by extruding peroxide crosslinking type semi-conductive shield material.
Preferably, the thinnest part of each of the conductor shielding layer and the insulation shielding layer is greater than or equal to 0.7 mm.
Preferably, the average insulation thickness of the insulation layer is set to be C, and the nominal value of the insulation thickness in the cable structure table is 4.5 mm;
the thickness of the thinnest part of the insulating layer is set to be D, and the thickness of the thinnest point of the insulating layer in the cable structure table is 4.05 mm;
the C is more than or equal to 4.5mm, and the D is more than or equal to 4.05 mm.
The utility model discloses an overhead insulating sheath cable of 10KV multicore still is provided with the filling layer, and the filling layer is located space department between oversheath layer and the multiunit sinle silk.
Preferably, the filling layer is any one of polypropylene net filling rope, glass fiber rope or hemp rope.
The utility model discloses an overhead insulating sheath cable of 10KV multicore still is provided with the elasticity plastic layer, and the elasticity plastic layer sets up between filling layer and oversheath layer.
The utility model discloses a 10KV multicore aerial insulated sheath cable is provided with multiunit sinle silk and oversheath layer, and oversheath layer cladding is in multiunit sinle silk surface, and every group sinle silk has set gradually conductor layer, conductor shielding layer, insulating layer and insulation shielding layer from the center to the outside, and the even cladding of conductor shielding layer is in the conductor layer, and the insulating layer is closely crowded package in the conductor shielding layer, and insulation shielding layer covers in the insulating layer. This 10KV multicore aerial insulated sheath cable uses PVC polyvinyl chloride crowded package oversheath layer, because polyvinyl chloride has extremely strong weatherability and stability, not only can reduce the ageing and the damage of cable outer screen in the relatively poor area of environment, improves the security of cable and increases the life of cable, also can make the cable change simultaneously and lay in advance, the loose phenomenon of sinle silk can not appear.
Drawings
The present invention will be further described with reference to the accompanying drawings, but the contents in the drawings do not constitute any limitation to the present invention.
Fig. 1 is a schematic structural view of a 10KV multi-core overhead insulated sheath cable of the present invention.
Fig. 2 is a core schematic view of a 10KV multi-core overhead insulated sheath cable of the present invention.
In fig. 1 to 2, the method includes:
a wire core 100,
A conductor layer 110, a conductor shield layer 120, an insulating layer 130, an insulating shield layer 140,
A filling layer 200, an outer sheath layer 300, and an elastic plastic layer 400.
Detailed Description
The invention will be further described with reference to the following examples.
Example 1.
A 10KV multi-core overhead insulated sheath cable, as shown in fig. 1, includes a plurality of groups of cores 100 and an outer sheath layer 300, wherein the outer sheath layer 300 covers the outer surfaces of the plurality of groups of cores 100.
In the embodiment, the multiple groups of wire cores 100 are twisted to form the cable, the cable pitch diameter ratio is set to be N, and N is less than 25. The pitch is the distance that the single wire rotates for one circle along the axis of the stranded wire and is called the pitch of cable stranding, the diameter is the diameter of the cable, and the pitch-diameter ratio is the ratio of the length of the pitch to the diameter.
In this embodiment, the twisting direction of the plurality of groups of wire cores 100 may be clockwise twisting, or counterclockwise twisting, and both clockwise twisting and counterclockwise twisting may be applicable. It should be noted that, the direction of twisting can be freely selected by those skilled in the art according to the requirement, and is not limited in particular.
The cable in this embodiment may be configured as two sets of cores 100, three sets of cores 100, or four or more sets of cores 100. It should be noted that, as a person skilled in the art, the multiple sets of wire cores 100 may be twisted according to actual needs, and are not specifically described herein.
Through crowded package in the surface that multiunit sinle silk 100 twisted into the cable with oversheath layer 300, can make the product can not cause sinle silk 100 loose because of the internal stress is too big, and crowded package oversheath layer 300 can reduce the ageing and damage of outer screen, improves the security performance of product.
Specifically, as shown in fig. 2, each group of wire cores 100 is provided with a conductor layer 110, a conductor shielding layer 120, an insulating layer 130 and an insulating shielding layer 140 in sequence from the center to the outside. The conductor shielding layer 120 is uniformly wrapped around the conductor layer 110, the insulating layer 130 is tightly wrapped around the conductor shielding layer 120, and the insulating shielding layer 140 covers the insulating layer 130.
The outer sheath layer 300 in this embodiment is formed by extruding PVC polyvinyl chloride insulating material. Polyvinyl chloride is an initiator of vinyl chloride in peroxide and azo compounds, or a polymer polymerized by a free radical polymerization reaction mechanism under the action of light and heat, has larger polydispersity and excellent dielectric property, and simultaneously has extremely strong weather resistance and stability, thereby having very wide application in the wire and cable industry.
Specifically, the thickness of the thinnest part of the outer sheath layer 300 is set to be M, and M is larger than or equal to 2.81 mm.
The conductor layer 110 in this embodiment is a conductor layer 110 formed by twisting a plurality of L8 or L9 type hard round aluminum wires. In the conductor layer 110, the conductor is a carrier for transmitting current or signals, and the quality of the twisted conductor should meet the requirements of conductor twisted wire process table for cable, wherein the hard copper conductor monofilament does not need to be annealed. The conductor adopts a compact round structure, and the surface of the conductor is smooth and clean, round, free of oil stain and free of damage and insulation burrs, sharp edges and raised or broken monofilaments.
When the temperature is 20 ℃, the direct current resistance of the conductor is in accordance with the regulations of GB/T14049-2008, Q/GXY 01003-2017 and GB/T3956-2008. The conductors are common general knowledge to those skilled in the art and specific provisions will not be set forth herein.
The conductor shield layer 120 in this embodiment is a conductor shield layer 120 extruded from a thermoplastic semiconductive shield. Wherein the thermoplastic semiconductive shield is also referred to as PSD.
The insulating layer 130 in this embodiment is an insulating layer 130 formed by using two materials, namely weather-resistant High Density Polyethylene (HDPE) and cross-linked polyethylene (XLPE), as a substrate and extruding black mixed material YJG-10, and is mainly used for isolating conductors, bearing corresponding voltage and preventing current leakage. Specifically, the surface of the insulating layer 130 is a flat structure, the color and luster of the insulating layer are uniform, when the insulating layer is used, the HDPE insulating layer 130 and the XLPE insulating layer 130 are extruded by using a black mixture (YJG-10 black) of silane cross-linked polyethylene meeting the JB/T10437-2004 requirement, the HDPE insulating layer 130 does not need to be cross-linked by steam, and the XLPE insulating layer 130 needs to be cross-linked by steam.
HDPE is a thermoplastic polyolefin generated by ethylene copolymerization, has good heat resistance and cold resistance, good chemical stability, and good dielectric property and environmental stress cracking resistance; XLPE is an organic peroxide and has strong deformation resistance at a high temperature for a long time.
Specifically, the average insulation thickness of the insulation layer 130 is set to C, and the nominal value of the insulation thickness in the cable structure table is 4.5 mm; the thickness of the thinnest part of the insulating layer 130 is set to be D, and the thickness of the thinnest point of the insulating layer 130 in the cable structure table is 4.05 mm;
the C is more than or equal to 4.5mm, and the D is more than or equal to 4.05 mm.
The insulation shielding layer 140 in this embodiment is an insulation shielding layer 140 formed by extruding peroxide cross-linking type semi-conductive shielding material (PYJBJ), and is mainly responsible for limiting electromagnetic interference in an electrical field. When in use, the surface of the insulation shielding layer 140 should be smooth without obvious twisted wire ribs and burnt or scratched traces, and the requirement of JB/T10738-2008 should be met.
Specifically, the thinnest portions of conductor shield layer 120 and insulation shield layer 140 are each greater than or equal to the nominal value. Wherein the nominal value in the cable construction table is 0.7 mm.
In this embodiment, a filling layer 200 and an elastic plastic layer 400 are further disposed, the filling layer 200 is located in a gap between the outer sheath layer 300 and the plurality of groups of cores 100, and the elastic plastic layer 400 is disposed between the filling layer 200 and the outer sheath layer 300.
Be provided with elasticity plastic layer 400 between filling layer 200 and oversheath layer 300, can utilize elasticity to cramp multiunit sinle silk 100 for inseparabler between the sinle silk 100 of transposition, have waterproof nature good and dampproofing characteristics.
When the cable is prepared, the cable core 100 is firstly twisted according to the design requirements, a thermoplastic semi-conductive shielding material or a peroxide cross-linking semi-conductive shielding material is extruded outside the conductor shielding layer 120 of the cable core 100, then a black mixed base material (YJG-10) is used for extrusion coating on the outer side of the insulating layer 130, the peroxide cross-linking semi-conductive shielding material meeting the requirements is extruded on the insulating shielding layer 140, and finally a PVC (polyvinyl chloride) insulating layer 130 sheath is extruded, so that the production of the cable can be completed.
This 10KV multicore aerial insulated sheath cable uses PVC polyvinyl chloride crowded package oversheath layer 300, because polyvinyl chloride has extremely strong weatherability and stability, not only can reduce the ageing and the damage of cable outer screen in the relatively poor area of environment, improves the security of cable and increases the life of cable, also can make the cable change simultaneously and lay more easily, the loose phenomenon of sinle silk 100 can not appear.
Example 2.
The other structures of the 10KV multi-core overhead insulated sheath cable are the same as those of the embodiment 1, except that: conductor shield layer 120 is formed by extrusion of a peroxide crosslinked semiconductive shield (PYJD).
When in use, the peroxide crosslinking type semi-conductive shielding material can be in close contact with the insulating layer 130, which is beneficial to keeping the stability of the cable performance, is not easy to deform under long-term high temperature and has good deformation resistance.
The material of the filling layer 200 in the present invention is any one of polypropylene net-shaped filling rope, glass fiber rope or hemp rope. It should be noted that, those skilled in the art can select the target according to actual needs, and the target is not limited herein.
In this embodiment, the material of the filling layer 200 is a glass fiber rope. The glass fiber rope has the main performances of high temperature resistance, corrosion resistance, high strength and the like, and can be used as a filling material, a soft joint between a boiler and a boiler wall or a boiler body, other industrial fields such as the chemical field and the like. When the glass fiber rope is used as a filling material, gaps generated in the twisting process of the cable core 100 can be filled, the roundness of the cable is guaranteed, the excessive use of the sheath material in the extrusion process of the cable outer sheath is further reduced, and the cable has a good flame-retardant effect.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A10 KV multi-core overhead insulated sheath cable is characterized in that: the cable comprises a plurality of groups of cable cores and an outer sheath layer, wherein the outer sheath layer is coated on the outer surfaces of the plurality of groups of cable cores;
each group of wire cores is sequentially provided with a conductor layer, a conductor shielding layer, an insulating layer and an insulating shielding layer from the center to the outside;
the conductor shielding layer is uniformly coated on the conductor layer, the insulating layer is tightly extruded on the conductor shielding layer, and the insulating shielding layer covers the insulating layer.
2. The 10KV multi-core overhead insulated sheath cable of claim 1, wherein: the outer sheath layer is formed by extruding PVC (polyvinyl chloride) insulating materials.
3. The 10KV multi-core overhead insulated sheath cable of claim 2, wherein: the thickness of the thinnest part of the outer sheath layer is set to be M, and the M is larger than or equal to 2.81 mm.
4. The 10KV multi-core overhead insulated sheath cable of claim 3, wherein: and the multiple groups of wire cores are stranded into a cable, the cable pitch diameter ratio is set to be N, and N is less than 25.
5. The 10KV multi-core overhead insulated sheath cable of claim 4, wherein: the stranding direction of the multiple groups of wire cores is clockwise stranding or anticlockwise stranding.
6. The 10KV multi-core overhead insulated sheath cable of claim 5, wherein:
the conductor layer is formed by stranding a plurality of L8 or L9 type hard round aluminum wires;
the conductor shielding layer is formed by extruding and wrapping thermoplastic semi-conductive shielding material or peroxide crosslinking semi-conductive shielding material;
the insulating layer is formed by taking weather-resistant high-density polyethylene and crosslinked polyethylene as substrates and extruding black mixed material YJG-10;
the insulation shielding layer is formed by extruding and wrapping peroxide crosslinking type semi-conductive shielding materials.
7. The 10KV multi-core overhead insulated sheath cable of claim 6, wherein: the thinnest part of each of the conductor shielding layer and the insulation shielding layer is larger than or equal to 0.7 mm.
8. The 10KV multi-core overhead insulated sheath cable of claim 7, wherein: the average insulation thickness of the insulation layer is set to be C, and the nominal value of the insulation thickness in a cable structure table is 4.5 mm;
the thickness of the thinnest part of the insulating layer is set to be D, and the thickness of the thinnest point of the insulating layer in the cable structure table is 4.05 mm;
the C is more than or equal to 4.5mm, and the D is more than or equal to 4.05 mm.
9. The 10KV multi-core overhead insulated sheath cable of claim 1, wherein: the cable is also provided with a filling layer, and the filling layer is positioned in a gap between the outer sheath layer and the plurality of groups of cable cores;
the filling layer is any one of polypropylene reticular filling ropes, glass fiber ropes or hemp ropes.
10. The 10KV multi-core overhead insulated sheath cable of claim 1, wherein: still be provided with the elasticity plastic layer, the elasticity plastic layer sets up between filling layer and oversheath layer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921739788 | 2019-10-17 | ||
| CN2019217397882 | 2019-10-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211628754U true CN211628754U (en) | 2020-10-02 |
Family
ID=72634355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922458809.XU Active CN211628754U (en) | 2019-10-17 | 2019-12-31 | 10KV multi-core overhead insulated sheath cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211628754U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114530297A (en) * | 2022-03-01 | 2022-05-24 | 广东新亚光电缆股份有限公司 | Preparation method of 10kV overhead insulated cable |
-
2019
- 2019-12-31 CN CN201922458809.XU patent/CN211628754U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114530297A (en) * | 2022-03-01 | 2022-05-24 | 广东新亚光电缆股份有限公司 | Preparation method of 10kV overhead insulated cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202473308U (en) | Acid and alkali-resistant oil-resistant ultraviolet-resistant moisture-proof environment-friendly type flat drag cable | |
| CN201331940Y (en) | Anti-interference integrated reel cable | |
| CN211628754U (en) | 10KV multi-core overhead insulated sheath cable | |
| CN202601310U (en) | High-frequency communication cable | |
| CN201812508U (en) | Fire-fighting corrosion-resistant and weather-proof armored cable for offshore oil platform | |
| CN101950612A (en) | Cable for solar power system | |
| CN112435782A (en) | Polyvinyl chloride insulation nylon sheath cable | |
| CN201812538U (en) | High-temperature-resistant moisture-proof mould-proof environment-friendly cable | |
| CN201758017U (en) | Low-smoke halogen-free environment-friendly flame-retardant intrinsic safety system control cable | |
| CN214336377U (en) | Special shielded waterproof flexible cable | |
| CN209880229U (en) | Waterproof directly-buried photovoltaic cable | |
| CN207718857U (en) | A kind of anti-interference power cable for nuclear power plant of radiation hardness | |
| CN202976938U (en) | Six-core flame retardation light cable | |
| CN207993517U (en) | A kind of flat USB data line | |
| CN210073438U (en) | Cross-linked polyethylene insulation medium-voltage locomotive cable | |
| CN201893170U (en) | General rubber sleeve cable | |
| CN205541990U (en) | Insulating and band -armored cable of EP rubbers | |
| CN205542021U (en) | Silicon rubber insulation and chlorosulfonation jacketed cable | |
| CN215376981U (en) | Ground wire sparse winding type power cable | |
| CN212161392U (en) | Polypropylene insulation flame-retardant fire-resistant cable | |
| CN220856136U (en) | Rubber insulation high-voltage flexible cable | |
| CN211294652U (en) | Auxiliary power control cable for alternating-current variable-frequency top drive device | |
| CN203118588U (en) | Tensile and high temperature-resistant power transmission cable | |
| CN220709974U (en) | Environment-friendly waterproof wear-resistant double-sheath nylon flexible wire | |
| CN203787197U (en) | Antiflaming polyolefin sheath power cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Sha Tin Industrial Zone Qingyuan city Guangdong province 511500 Patentee after: Guangdong new Yaguang Cable Co.,Ltd. Address before: Sha Tin Industrial Zone Qingyuan city Guangdong province 511500 Patentee before: GUANGDONG SHINE CABLES Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |