CN218123043U - Multi-core medium-voltage water-blocking overhead insulated cable - Google Patents
Multi-core medium-voltage water-blocking overhead insulated cable Download PDFInfo
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- CN218123043U CN218123043U CN202222376923.XU CN202222376923U CN218123043U CN 218123043 U CN218123043 U CN 218123043U CN 202222376923 U CN202222376923 U CN 202222376923U CN 218123043 U CN218123043 U CN 218123043U
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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
Abstract
The utility model discloses a multicore middling pressure overhead insulated cable that blocks water, including bearing the cable line, the surface that bears the cable line is provided with insulated cable, it includes bearing the sinle silk to bear the cable line, the sinle silk protective layer has been cup jointed on bearing the sinle silk's surface, insulated cable includes the conductor, the conductor surface cladding has the insulated core shielding layer, the insulated core shielding layer surface cladding has the insulating layer, the insulating layer surface cladding has the insulation shielding layer, the insulation shielding layer surface cladding has semi-conductive water-blocking tape, semi-conductive water-blocking tape surface cladding has compound area of aluminium-plastic, compound surface cladding of aluminium-plastic has circular telegram cable protective layer. The utility model discloses a be equipped with strenghthened type carrier wire at cable core center to HDPE sheath once of crowded package has avoided external excessive corrosion, has improved the insulation level that the product used, has improved the water blocking performance and the resistant wear resistance ability of waiting of cable, improves the life of cable.
Description
Technical Field
The application relates to the technical field of electrical equipment, in particular to a multi-core medium-voltage water-blocking overhead insulated cable.
Background
The medium-voltage cable bears a voltage range between 6KV and 33KV, is mainly applied to power utilization places such as petrifaction, transportation, wastewater treatment, food processing and the like, and is an important application cable type.
The existing medium-voltage multi-core overhead insulated cable is a common overhead cable, adopts the structural design of conductor-conductor shielding-XLPE insulation-insulation shielding, only the surface of a conductor is tightly pressed with a shielding layer, the water resistance is general, and meanwhile, the insulation shielding layer has general protection on the insulation layer. In the use process, the conventional medium-voltage multi-core overhead insulated cable is a common overhead cable, and has the defects of low weather resistance, poor water resistance, general wear resistance, poor capability of coping with severe weather and short service life.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a multicore middling pressure aerial insulated cable that blocks water to solve the problem that proposes in the above-mentioned background art.
The embodiment of the application adopts the following technical scheme:
the utility model provides a multicore middling pressure aerial insulated cable that blocks water, is including bearing the cable, the surface that bears the cable is provided with insulating cable, insulating cable's quantity is three, three insulating cable sets up on bearing the cable surface, bearing the cable including bearing the sinle silk, the sinle silk protective layer has been cup jointed on the surface that bears the sinle silk, insulating cable includes the conductor, the conductor surface cladding has insulating sinle silk shielding layer, insulating sinle silk shielding layer surface cladding has the insulating layer, insulating layer surface cladding has the insulating shielding layer, insulating shielding layer surface cladding has the semi-conductive waterproofing area, semi-conductive waterproofing area surface cladding has the compound area of plastic-aluminum, the compound surface cladding of plastic-aluminum has circular telegram cable protective layer.
Preferably, the bearing wire core is formed by twisting steel wires, the steel wires are 3.00mm GIA strength steel wires, and the number of the steel wires is seven.
Preferably, the conductor is a round compacted aluminum conductor of the second type, and the thickness of the shielding layer of the insulated wire core is in the range of 0.8 mm-1.0 mm.
Preferably, the thickness of the insulating layer is in the range of 10.0mm to 11.0mm, and the thickness of the insulating shield layer is in the range of 1.0mm to 1.2 mm.
Preferably, the thickness of the semiconductive water-blocking tape is in the range of 0.2mm to 0.3 mm.
Preferably, the aluminum-plastic composite belt consists of an aluminum belt layer and an aluminum-plastic film, the thickness of the aluminum belt layer ranges from 0.2mm to 0.3mm, and the thickness of the aluminum-plastic film ranges from 0.04mm to 0.06 mm.
The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:
the utility model provides a multicore middling pressure overhead insulated cable that blocks water, including three power core, present shielding-insulating-shielded structural feature, adopt dry process cross-linking three-layer crowded altogether, disposable extrusion, be equipped with strenghthened type carrier wire at the cable core center, and HDPE sheath of crowded package, external excessive corrosion has been avoided, the insulation level that the product used has been improved, the water-blocking performance and the resistant wear resistance of cable have been improved, can be under adverse circumstances condition, the life of cable is prolonged, this kind of multicore middling pressure overhead insulated cable that blocks water well, can block water with radial simultaneously outside insulating vertically, the surface adopts the high density polyethylene material to wait, wear-resisting, the insulating performance of protection has both been played, also play certain water-blocking performance, the cable is built by three-core transposition together simultaneously, can practice thrift the cost.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a diagram: the structure of the utility model is shown schematically;
FIG. 2 is a diagram of: the right side structure schematic diagram of the utility model;
FIG. 3 is a diagram of: the utility model discloses a structural schematic diagram of an insulated cable;
FIG. 4 is a diagram of: the utility model discloses insulated cable's sectional structure schematic diagram.
In the figure: 1. a carrier cable; 101. carrying the wire core; 102. a wire core protective layer; 2. an insulated cable; 201. a conductor; 202. an insulating wire core shielding layer; 203. an insulating layer; 204. an insulating shield layer; 205. a semiconductive water-blocking tape; 206. an aluminum-plastic composite tape; 207. an electrified cable protective layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Referring to fig. 1-4, the utility model provides a multicore medium voltage overhead insulated cable that blocks water technical scheme:
the utility model provides a multicore middling pressure aerial insulated cable that blocks water, the surface that bears cable 1 including bearing cable 1 is provided with insulating cable 2, the quantity of insulating cable 2 is three, three insulating cable 2 set up and are bearing cable 1 surface, bearing cable 1 is including bearing sinle silk 101, sinle silk protective layer 102 has been cup jointed on the surface that bears sinle silk 101, insulating cable 2 includes conductor 201, conductor 201 surface cladding has insulating sinle silk shielding layer 202, insulating sinle silk shielding layer 202 surface cladding has insulating layer 203, insulating layer 203 surface cladding has insulating shielding layer 204, insulating shielding layer 204 surface cladding has semi-conductive water-blocking tape 205, semi-conductive water-blocking tape 205 surface cladding has aluminum-plastic composite tape 206, aluminum-plastic composite tape 206 surface cladding has circular telegram cable protective layer 207.
The bearing wire core 101 is formed by twisting steel wires, the steel wires are 3.00mm GIA strength steel wires, and the number of the steel wires is seven.
The conductor 201 is a round compressed aluminum conductor of the second type, and the thickness of the shielding layer 202 of the insulated wire core is in the range of 0.8 mm-1.0 mm.
The thickness of the insulating layer 203 is in the range of 10.0mm to 11.0mm, and the thickness of the insulating shield layer 204 is in the range of 1.0mm to 1.2 mm.
The thickness of the semiconductive water-blocking tape 205 is in the range of 0.2mm to 0.3 mm.
The aluminum-plastic composite tape 206 is a composite tape composed of an aluminum tape layer and an aluminum-plastic film, wherein the thickness of the aluminum tape layer ranges from 0.2mm to 0.3mm, and the thickness of the aluminum-plastic film ranges from 0.04mm to 0.06 mm.
Specifically, the bearing wire core 101 is formed by twisting 7 steel wires with the strength of 3.00mmGIA, the bearing wire core can bear large breaking force, the multi-core medium-voltage water-blocking aerial insulated cable is prevented from being broken by being pressed by rainwater or snow, the wire core protective layer 102 is made of black high-density polyethylene material with the carbon black content of not more than 2.5 percent, the black high-density polyethylene material is extruded and coated on the periphery of the bearing wire core 101 after being melted at the high temperature of 170-185 ℃, the corrosion resistance, the electrical insulation property and the water absorption are good, the flexibility and the elongation are good, the two types of round compact aluminum conductors adopted by the conductor 201 are high in flexibility and are the most common conductor wire core of the plastic cable, the insulating wire core shielding layer 202 is made of raw materials with high shielding property and is used for homogenizing an electric field formed when the conductor is electrified, the insulating layer 203 is used for electrifying insulation, the insulating shielding layer 204 is used for homogenizing an electric field formed by the insulating layer 203, the semi-conductive water blocking tape 205 is wrapped outside the insulating shielding layer 204 in an overlapping mode, the overlapping rate is 20% -25%, the semi-conductive water blocking tape is used for shielding interference of an external electromagnetic field and has a longitudinal water blocking effect, the aluminum-plastic composite tape 206 is longitudinally wrapped on the periphery of the semi-conductive water blocking tape 205, the overlapping rate of longitudinal wrapping is 10%, the overlapping portion is welded at high temperature of 360 ℃ and used for shielding interference of the external electromagnetic field and the radial water blocking effect, the electrified cable protective layer 207 is made of black high-density polyethylene material with carbon black content not more than 2.5%, the black high-density polyethylene material is extruded and wrapped on the periphery of the aluminum-plastic composite tape 206 after being melted at high temperature of 170-185 ℃, and the electrified cable protective layer 207 has high weather resistance and wear resistance and low water absorption and is used for protecting electrified wire cores.
The working principle is as follows: when the multi-core medium-voltage water-blocking overhead insulated cable is used, a user firstly adopts dry-method cross-linking three-layer co-extrusion to extrude three power wire cores at one time, a reinforced bearing wire is arranged in the center of a cable core, and a HDPE protective layer is extruded once, so that excessive corrosion is avoided, the insulation grade of the product is improved, the water-blocking performance and the weather-proof and wear-resistant performance of the cable are improved, the service life of the cable can be prolonged under severe environment conditions, the surface of the bearing wire core 101 is coated with a wire core protective layer 102, three insulating cables 2 are stranded on the surface of the bearing cable 1, the surface of a conductor 201 is coated with an insulating wire core shielding layer 202, the surface of the insulating wire core shielding layer 202 is coated, the surface of an insulating layer 203 is coated with an insulating shielding layer 204, the surface of the insulating shielding layer 204 is coated with a semi-conductive water-blocking tape 205, the surface of the semi-conductive water-blocking tape 205 is coated with an aluminum-plastic composite tape 206, the surface of an aluminum-plastic composite belt 206 is coated with an electrified cable protection layer 207, a bearing wire core 101 is formed by twisting 7 steel wires with the strength of 3.00mmGIA, the bearing wire core can bear large breaking force and can prevent the multi-core medium-voltage water-blocking overhead insulated cable from being broken by being pressed by rainwater or snow, a black high-density polyethylene material adopted by the wire core protection layer 102 has excellent corrosion resistance and electrical insulation property, small water absorption and better flexibility and elongation, a second type of round compacted aluminum conductor adopted by the conductor 201 has high flexibility and is the most common conductor wire core of a plastic power cable, an insulation wire core shielding layer 202 is made of raw materials with higher shielding property and is used for homogenizing an electric field formed when the conductor is electrified, an insulation layer 203 is used for electrifying insulation, an insulation shielding layer 204 is used for homogenizing the electric field formed by the insulation layer 203, a semi-conductive water-blocking tape 205 is used for shielding the interference of an external electromagnetic field, the aluminum-plastic composite belt 206 has the longitudinal water-blocking effect, is used for shielding the interference of an external electromagnetic field and has the radial water-blocking effect, and the electrified cable protective layer 207 has the functions of shouting weather resistance and wear resistance, is low in water absorption and is used for protecting the electrified wire core.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises that element.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (6)
1. The utility model provides a multicore middling pressure overhead insulated cable that blocks water, includes bearing cable (1), its characterized in that: the surface of bearing cable (1) is provided with insulated cable (2), the quantity of insulated cable (2) is three, three insulated cable (2) set up on bearing cable (1) surface, bearing cable (1) is including bearing sinle silk (101), sinle silk protective layer (102) have been cup jointed on the surface of bearing sinle silk (101), insulated cable (2) are including conductor (201), conductor (201) surface cladding has insulated sinle silk shielding layer (202), insulated sinle silk shielding layer (202) surface cladding has insulating layer (203), insulating layer (203) surface cladding has insulating shielding layer (204), insulating shielding layer (204) surface cladding has semiconductive waterproofing area (205), semiconductive waterproofing area (205) surface cladding has aluminum-plastic composite tape (206), aluminum-plastic composite tape (206) surface cladding has circular telegram cable protective layer (207).
2. The multi-core medium-voltage water-blocking overhead insulated cable according to claim 1, characterized in that: the bearing wire core (101) is formed by twisting steel wires, the steel wires are 3.00mm GIA strength steel wires, and the number of the steel wires is seven.
3. The multi-core medium-voltage water-blocking overhead insulated cable according to claim 1, characterized in that: the conductor (201) is a round compacted aluminum conductor of two types, and the thickness of the shielding layer (202) of the insulated wire core is in the range of 0.8 mm-1.0 mm.
4. The multi-core medium-voltage water-blocking overhead insulated cable according to claim 1, characterized in that: the thickness of the insulating layer (203) is in the range of 10.0 mm-11.0 mm, and the thickness of the insulating shielding layer (204) is in the range of 1.0 mm-1.2 mm.
5. The multi-core medium-voltage water-blocking aerial insulated cable according to claim 1, characterized in that: the thickness of the semi-conductive water-blocking tape (205) is in the range of 0.2 mm-0.3 mm.
6. The multi-core medium-voltage water-blocking aerial insulated cable according to claim 1, characterized in that: the aluminum-plastic composite belt (206) is a composite belt material consisting of an aluminum belt layer and an aluminum-plastic film, wherein the thickness of the aluminum belt layer ranges from 0.2mm to 0.3mm, and the thickness of the aluminum-plastic film ranges from 0.04mm to 0.06 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222376923.XU CN218123043U (en) | 2022-09-07 | 2022-09-07 | Multi-core medium-voltage water-blocking overhead insulated cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222376923.XU CN218123043U (en) | 2022-09-07 | 2022-09-07 | Multi-core medium-voltage water-blocking overhead insulated cable |
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| Publication Number | Publication Date |
|---|---|
| CN218123043U true CN218123043U (en) | 2022-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222376923.XU Active CN218123043U (en) | 2022-09-07 | 2022-09-07 | Multi-core medium-voltage water-blocking overhead insulated cable |
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| Country | Link |
|---|---|
| CN (1) | CN218123043U (en) |
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2022
- 2022-09-07 CN CN202222376923.XU patent/CN218123043U/en active Active
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