CN207233448U - A kind of tunnel high life water-resistant power cable - Google Patents
A kind of tunnel high life water-resistant power cable Download PDFInfo
- Publication number
- CN207233448U CN207233448U CN201720832378.7U CN201720832378U CN207233448U CN 207233448 U CN207233448 U CN 207233448U CN 201720832378 U CN201720832378 U CN 201720832378U CN 207233448 U CN207233448 U CN 207233448U
- Authority
- CN
- China
- Prior art keywords
- water
- blocking layer
- power cable
- high life
- resistant power
- 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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Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 82
- 230000000903 blocking effect Effects 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 29
- 239000004020 conductor Substances 0.000 claims description 17
- -1 polyethylene Polymers 0.000 claims description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 13
- 239000004698 Polyethylene Substances 0.000 claims description 13
- 229910052802 copper Inorganic materials 0.000 claims description 13
- 239000010949 copper Substances 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 13
- 229920000573 polyethylene Polymers 0.000 claims description 13
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910021389 graphene Inorganic materials 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 229920000098 polyolefin Polymers 0.000 claims description 5
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 4
- 239000008397 galvanized steel Substances 0.000 claims description 4
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 4
- 238000004078 waterproofing Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 3
- 150000001336 alkenes Chemical class 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 240000005572 Syzygium cordatum Species 0.000 description 6
- 235000006650 Syzygium cordatum Nutrition 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 2
- 229920003020 cross-linked polyethylene Polymers 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 206010035148 Plague Diseases 0.000 description 1
- 241000700159 Rattus Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- GHVNFZFCNZKVNT-UHFFFAOYSA-M decanoate Chemical compound CCCCCCCCCC([O-])=O GHVNFZFCNZKVNT-UHFFFAOYSA-M 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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 tunnel high life water-resistant power cable, including insulated wire cores, the filling that blocks water, water blocking layer A, cushion, armor, water blocking layer B, oversheath, the filling that blocks water is used in insulated wire cores cabling process, outside extrudes water blocking layer A, cushion is extruded outside water blocking layer A, the wrapped armor of buffer exteriors, the rich water blocking layer B of armor outside bag, water blocking layer B extrude oversheath outside.Cable in the utility model possesses stronger water resistance, substantially prolongs the service life of cable.
Description
Technical field
A kind of multicore midium voltage cable, more particularly to a kind of tunnel high life water-resistant power cable are the utility model is related to,
Belong to field of cable technology.
Background technology
Domestic power cable with cross-linked polyethylene insulation usage history nearly 40 years existing, because it is with good electrical resistance
Can, while technique of surviving is simple, transmission capacity is big, construction laying is convenient, is used widely in electric system.With China
A large amount of build of the underground installation such as rapid economic development, subway, lake Tunnel, underground commercial center allows power cable widely should
With.It is newly-designed in recent years general but in actual use, common crosslinked cable actual life is commonly 8~12 years
Logical water-resistance electric power cable is because add one layer of longitudinal water-blocking layer, although can be so that the service life of cross link force cable obtains necessarily
Increase, but still be difficult to the design requirement for reaching 30 years service life.Main cause is rough for cable shield, electricity during laying
Cable bending makes the increase of shielded layer rough degree, easily occurs corona after working long hours, while the individual layer of cable blocks water knot
Structure is influenced by cable bend when laying, and there are damaged risk, it is difficult to reaches expected block-water effect.The hair of corona and electric water tree
Life will cause cable insulation breakdown fault, and cable fault occurs in special occasions such as subway, tunnels, not only directly affect extensive
The personal safety of crowd, while because treatment of the earth is special, again laying change cable cost input it is larger, huge economy will be caused
Loss.Therefore, it is necessary to design a kind of new construction of cable, make the anticorona water resistant tree of crosslinked cable, can greatly extend cable
Service life, to meet that cable is used in extraordinary occasion.
In conclusion urgent problem to be solved is, it is necessary to which high life water-resistant power cable has anticorona and water tree resistance
Can, and normal laying and long-time service cable are smaller by external environment influence, effectively can for a long time work normally and ensure electricity
The safety on cable road.
Utility model content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of tunnel and is blocked water electric power electricity with the high life
The advantages that cable, has anticorona and water tree resistant property, and water tree resistant property is good, anti-side pressure is big, it is difficult suitable for environment moistening, construction
The place that degree is big, cable is flexible and safety requirements is high, such as subway, tunnel, underground commercial center place, especially adapt to subway and lake
Used in the wet environments such as bottom tunnel.
The technical solution adopted in the utility model is：A kind of tunnel high life water-resistant power cable, including insulated wire cores,
Block water filling, water blocking layer A, cushion, armor and oversheath, the filling that blocks water is filled in the insulated wire cores cabling process, outside
Portion extrudes and extrudes cushion outside water blocking layer A, the water blocking layer A, and the buffer exteriors are surrounded with armor, the armor
Oversheath is extruded outside exterior wrapped water blocking layer B, the water blocking layer B.
Further, the insulated wire cores are made of copper conductor, conductor shielding, insulation, insulation shielding and copper strip shielding, institute
State and synchronously extrude that graphene semiconductive conductor shielding, water resistant tree be crosslinked polyetylene insulated, graphene is partly led outside copper conductor successively
Electric insulation shielding, then overlapping wrapped copper strip shielding again.
Further, the quantity of the insulated wire cores is 3.
Further, the material of the filling that blocks water is waterproofing rope.
Further, the material of the water blocking layer A is aluminum plastic belt and flame-proof polyethylene integrated sheath, and aluminum plastic belt uses longitudinal wrap
Mode, using mode is extruded, the inner surface of the polyethylene film and polyethylene separation sleeve of plastic-aluminum combined belt surface glues flame-proof polyethylene
Knot.
Further, the material of the cushion is polyurethane elastomer sheathing material.
Further, the material of the armor is galvanized steel strip.
Further, the material of the water blocking layer B is waterstop.
Further, the material of the oversheath is mouse bite preventing polyolefin jacket material.
Compared with prior art, the utility model have the advantage that for：1st, tunnel provided by the utility model is high
Service life water-resistant power cable, by select novel graphite alkene semi-conductive shielding material ensure insulated wire cores conductor shield and absolutely
The surface of edge shielded layer is smooth, and because grapheme material has good ductility resistance, ensure that the screen that insulate in cable bend
Cover with conductor shielding surface corrugationless, make cable long-term work under different laying environment that corona phenomenon will not still occur.2、
The utility model using rational water resistant tree insulating layer, double water blocking layer structure designs, make it have good radial water-resisting performance, from
The growth of water tree is fundamentally prevented, avoids the generation of the cable insulation breakdown fault produced due to water tree.3rd, this practicality
New to increase cushion outside water blocking layer A, the polyurethane elastomer material of selection has stronger wearability and resistance to pressure, makes resistance
There are elastic buffer between water layer A and armor, effectively avoid the armouring tape caused by cable bend in laid processes and draw
The situation of wound or embedded water blocking layer A, enables water blocking layer A to play longitudinal water-blocking effect as scheduled.4th, blocking water in the utility model
The waterstop that layer B is used serves not only as the first line of defence that outer layer blocks water, while the buffering for also functioning to armor and oversheath is made
With avoiding in work progress cable bend from causing armouring tape embedded or scratch oversheath internal layer and cause to protect after working long hours
Set season cracking causes cable to be intake.5th, the oversheath of the utility model cable selects mouse bite preventing polyolefin jacket material so that electricity
Cable in the long-term use will not the oversheath rupture water inlet caused by the plague of rats.
The cable of the utility model is suitable for environment moistening, the field that difficulty of construction is big, cable is flexible and safety requirements is high
Institute, such as subway, tunnel, underground commercial center place, especially adapt to use in the wet environment such as subway and lake Tunnel.
Brief description of the drawings
Fig. 1 is a kind of tunnel structure diagram of high life water-resistant power cable of the utility model；
1, insulated wire cores in figure, 2, block water filling, 3, water blocking layer A, 4, cushion, 5, armor, 6, water blocking layer B, 7, outer
Sheath.
Embodiment
Further to disclose the technical solution of the utility model, this reality is described in detail in conjunction with the drawings and specific embodiments
With new：
The tunnel of the utility model high life water-resistant power cable, is adapted to specified 26/35kV and following voltage class
Use, including insulated wire cores 1, the filling 2 that blocks water, water blocking layer A 3, cushion 4, armor 5, water blocking layer B 6 and oversheath 7, its
Middle insulated wire cores 1 are made of copper conductor, conductor shielding, insulation, insulation shielding and copper strip shielding, synchronous successively outside copper conductor to squeeze
Bag graphene semiconductive conductor shielding, water resistant tree are crosslinked polyetylene insulated, graphene semi-conductive insulation shield, then again it is overlapping around
Bag copper strip shielding, the quantity of insulated wire cores 1 is 3；Waterproofing rope is filled in cabling process and is used as the filling 2 that blocks water, after filling rounding
Tightened with waterstop, outside extrudes water blocking layer A 3, and 3 materials of water blocking layer A are aluminum plastic belt and flame-proof polyethylene integrated sheath, plastic-aluminum
Band uses longitudinal wrap mode, and flame-proof polyethylene is using the mode that extrudes, polyethylene film and the polyethylene separation sleeve of plastic-aluminum combined belt surface
Inner surface bond；Cushion 4 is extruded outside water blocking layer A 3, the material of cushion 4 is polyurethane (TPU) elastomer sheathing material；
The wrapped armor 5 in the outside of cushion 4,5 material of armor is plating resistance galvanized steel strip；The wrapped water blocking layer B 6 in the outside of armor 5,
Water blocking layer B 6 selects at least two layers of waterstop reversely wrapped；Oversheath 7 is extruded outside water blocking layer B 6, the material of oversheath 7 is
Mouse bite preventing polyolefin material.
Fig. 1 is a kind of specific structure diagram of the utility model, and the wherein conductor of insulated wire cores 1 is 185mm2Press
Copper conductor, conductor shielding and insulation shielding are graphene semiconductor shielding material, and insulating materials is 10kV water resistant tree crosslinked polyethylenes
Insulation Material, metallic shield are overlapping wrapped using a thickness 0.12mm copper strips；The filling 2 that blocks water uses waterproofing rope；Water blocking layer A3 is used
Aluminum plastic belt longitudinal wrap and flame-proof polyethylene integrated sheath；Cushion 4 uses and extrudes polyurethane elastomer sheathing material, thickness 1.2mm；
Material used in armor 5 is thickness 0.5mm electrodeposition-type galvanized steel strips, is not less than using Double-layer gap around packet mode, steel band gap
50%；The wrapped waterstop in the outside of armor 5 is used as water blocking layer B 6, and it is 2.0mm to select the tape thickness that blocks water, using double-layer overlapping around
Packet mode, adjacent lapping direction is on the contrary, overlapping cap rate is not less than 25%；Extruded outside water blocking layer B 6 outside mouse bite preventing polyolefin
Sheath 7.
Above by description of listed embodiment, the basic conception and basic principle of the utility model are elaborated.But
The utility model is not limited to above-mentioned listed embodiment, every equivalent change made based on the technical solution of the utility model
Change, improve and deliberately become of inferior quality behavior, all should belong to the protection range of the utility model.
Claims (9)
- A kind of 1. tunnel high life water-resistant power cable, it is characterised in that：Including insulated wire cores (1), the filling (2) that blocks water, resistance Water layer A (3), cushion (4), armor (5) and oversheath (7), in insulated wire cores (1) cabling process filling block water filling (2), outside extrudes water blocking layer A (3), and cushion (4) is extruded outside the water blocking layer A (3), and the cushion (4) is exterior wrapped There are armor (5), the exterior wrapped water blocking layer B (6) of the armor (5), the water blocking layer B (6) extrudes oversheath (7) outside.
- A kind of 2. tunnel high life water-resistant power cable according to claim 1, it is characterised in that：The insulated wire cores (1) it is made of copper conductor, conductor shielding, insulation, insulation shielding and copper strip shielding, stone is synchronously extruded successively outside the copper conductor Black alkene semiconductive conductor shielding, water resistant tree are crosslinked polyetylene insulated, graphene semi-conductive insulation shield, then overlapping around copper-clad again Band shielding.
- A kind of 3. tunnel high life water-resistant power cable according to claim 1, it is characterised in that：The insulated wire cores (1) quantity is 3.
- A kind of 4. tunnel high life water-resistant power cable according to claim 1, it is characterised in that：The filling that blocks water (2) material is waterproofing rope.
- A kind of 5. tunnel high life water-resistant power cable according to claim 1, it is characterised in that：The water blocking layer A (3) material is aluminum plastic belt and flame-proof polyethylene integrated sheath, and aluminum plastic belt uses longitudinal wrap mode, and flame-proof polyethylene uses the side of extruding Formula, the polyethylene film of plastic-aluminum combined belt surface are bonded with the inner surface of polyethylene separation sleeve.
- A kind of 6. tunnel high life water-resistant power cable according to claim 1, it is characterised in that：The cushion (4) material is polyurethane elastomer sheathing material.
- A kind of 7. tunnel high life water-resistant power cable according to claim 1, it is characterised in that：The armor (5) material is galvanized steel strip.
- A kind of 8. tunnel high life water-resistant power cable according to claim 1, it is characterised in that：The water blocking layer B (6) material is waterstop.
- A kind of 9. tunnel high life water-resistant power cable according to claim 1, it is characterised in that：The oversheath (7) material is mouse bite preventing polyolefin jacket material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720832378.7U CN207233448U (en) | 2017-07-11 | 2017-07-11 | A kind of tunnel high life water-resistant power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720832378.7U CN207233448U (en) | 2017-07-11 | 2017-07-11 | A kind of tunnel high life water-resistant power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207233448U true CN207233448U (en) | 2018-04-13 |
Family
ID=61852245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720832378.7U Active CN207233448U (en) | 2017-07-11 | 2017-07-11 | A kind of tunnel high life water-resistant power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207233448U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108417301A (en) * | 2018-04-19 | 2018-08-17 | 远东电缆有限公司 | Water resistant tree power cable with cross-linked polyethylene insulation and production technology are pressed in one kind |
| CN108538478A (en) * | 2018-05-09 | 2018-09-14 | 安徽意力电缆有限公司 | A kind of high intensity, water-proof track traffic locomotive cable |
-
2017
- 2017-07-11 CN CN201720832378.7U patent/CN207233448U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108417301A (en) * | 2018-04-19 | 2018-08-17 | 远东电缆有限公司 | Water resistant tree power cable with cross-linked polyethylene insulation and production technology are pressed in one kind |
| CN108417301B (en) * | 2018-04-19 | 2024-02-02 | 远东电缆有限公司 | Medium-voltage water tree-resistant crosslinked polyethylene insulated power cable and production process thereof |
| CN108538478A (en) * | 2018-05-09 | 2018-09-14 | 安徽意力电缆有限公司 | A kind of high intensity, water-proof track traffic locomotive cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240120 Address after: 214000, No. 58 Mashan Hushan Road, Binhu District, Wuxi City, Jiangsu Province Patentee after: Hongtu Optoelectronic Cable (Wuxi) Co.,Ltd. Country or region after: China Address before: No. 11 Xinke Fourth Road, High tech Development Zone, Pukou District, Nanjing City, Jiangsu Province, 211106 Patentee before: JIANGSU HITEKER Co.,Ltd. Country or region before: China |