CN204792117U - Water -resistant tree, fire -resistant, anticorrosive, waterproof 110kV and above plastic insulation power cable - Google Patents
Water -resistant tree, fire -resistant, anticorrosive, waterproof 110kV and above plastic insulation power cable Download PDFInfo
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- CN204792117U CN204792117U CN201520418242.2U CN201520418242U CN204792117U CN 204792117 U CN204792117 U CN 204792117U CN 201520418242 U CN201520418242 U CN 201520418242U CN 204792117 U CN204792117 U CN 204792117U
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- resistant
- cable
- water
- fire
- waterproof
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000009413 insulation Methods 0.000 title claims abstract description 23
- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 17
- 239000004033 plastic Substances 0.000 title claims abstract description 14
- 239000004020 conductor Substances 0.000 claims abstract description 35
- 238000000576 coating method Methods 0.000 claims abstract description 16
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000011248 coating agent Substances 0.000 claims abstract description 15
- 239000003063 flame retardant Substances 0.000 claims abstract description 15
- 230000004888 barrier function Effects 0.000 claims description 12
- 239000000919 ceramic Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 229920000098 polyolefin Polymers 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 claims description 5
- 230000008961 swelling Effects 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- 238000001354 calcination Methods 0.000 description 4
- 229920002379 silicone rubber Polymers 0.000 description 3
- 238000000137 annealing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010445 mica Substances 0.000 description 2
- 229910052618 mica group Inorganic materials 0.000 description 2
- 238000005491 wire drawing Methods 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 240000005572 Syzygium cordatum Species 0.000 description 1
- 235000006650 Syzygium cordatum Nutrition 0.000 description 1
- 206010053615 Thermal burn Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
Water -resistant tree, fire -resistant, anticorrosive, waterproof 110kV and above plastic insulation power cable belongs to cable technical field. The cable core is by the conductor, constitute around package a shielding layer, conductor shield, insulating layer, insulation screen, the cable core is equipped with the buffer layer that blocks water, metallic sheath layer, anticorrosive coating, flame retardant coating outward in proper order, the oversheath is arranged in outside the flame retardant coating. The utility model discloses satisfying under the defined termss such as product electric property, mechanical properties, improving nature rational in infrastructure, the stability of product, improving the life of cable shield effect and product, making this cable have that higher water -resistant is set, fire -resistant, anticorrosive, waterproof ability.
Description
Technical field
The utility model relates to a kind of structure of power cable, and the structure of especially a kind of water resistant tree, fire-resistant, anticorrosion, waterproof 110kV and above plastic insulating power cable, belongs to field of cable technology.
Background technology
Enter 2015, along with the transformation and upgrade of national grid, increasing high-tension cable is used in electrical network structure, meanwhile, does not also have a cable can meet the requirement of fire resistance in the great market of high-tension cable.But high-tension cable, as the sustainer of electrical network, once there is power-off or short circuit, will cause large-area power failure, bring huge potential safety hazard to personnel, property safety.
Utility model content
The object of the utility model technology be overcome that traditional 110kV and above plastic insulating power cable exist fire-resistant, water resistance is poor, easy unboiled water tree, the defect such as not anticorrosion, provides a kind of water resistant to set, fire-resistant, anticorrosion, waterproof 110kV and above plastic insulating power cable.
The purpose of this utility model is achieved through the following technical solutions: water resistant tree, fire-resistant, anticorrosion, waterproof 110kV and above plastic insulating power cable, comprise cable core, oversheath, it is characterized in that, the insulation screen that described cable core is arranged outward by conductor, the lapped shielding layer be placed in outside conductor, the conductor shield be placed in outside lapped shielding layer, the insulating barrier arranged outward at conductor shield, insulating barrier is formed;
Described cable core is outer wrappedly to be blocked water the water-blocking buffer layer that zone of swelling forms by semiconductive, the metal sheath layer that corrugated aluminum sheath is formed is provided with outside water-blocking buffer layer, be provided with anticorrosive coat outside metal sheath layer, be extruded with the flame retardant coating that ceramic polyolefin is made outside anticorrosive coat, described oversheath is placed in outside flame retardant coating.
Described anticorrosive coat adopts pitch to be coated in outside metal sheath layer.
Described conductor shield, insulating barrier, insulation screen adopt three-layer co-extruded shaping.
Described conductor forms by some tinned copper wires are stranded.
Described oversheath extrudes shaping outside flame retardant coating.
In the utility model, the conductor single line of cable adopt the production of German NIEHOFF company " double end " big drawing machine carries out wire drawing and annealing, environment-friendly type is zinc-plated, after making wire drawing and annealing, wire diameter and elongation are comparatively unified, are stablized, and have ensured the production of cable conductor single line.Conductor twisted wire production equipment adopts frame wire twisting equipment, adopts Moving plate Setting-out Technique, stepless speed regulation, product uniform external diameter, and pitch is consistent, Stability Analysis of Structures.Large size conductor adopts cage cabler regular stranded, and adopts sizing die strand conductor to carry out certain pressing and school circle, prevents strand wire jumper.
Cable insulation (i.e. conductor shield, insulating barrier, insulation screen) adopts three-layer co-extruded technology, and head adopts three-layer co-extruded pattern, is configured with diameter measurer, realizes on-line measurement.A series of crosslinked parameters such as working temperature when determining crosslinked according to insulation cross-linking properties, thickness of insulating layer and speed of production, ensure that insulation obtains full cross-linked, ensure electric property and the mechanical performance of cable insulation.Advanced production equipment and strict technology controlling and process ensure that the uniformity of insulation and shielding, screen good concentricity, smooth surface rounding, the stability of production.
The in use maximum hazardous substance of reasonable in design, up-to-standard high-tension cable is exactly water, once cable water inlet, the life-span of cable becomes geometric format to decline exactly, even causes cable breakdown.So high-tension cable water resistance is particularly important.The utility model adopts wrapped semiconductive before metallic sheath to block water the structural design of zone of swelling, by the characteristic of the zone of swelling undergoes rapid expansion when running into water that blocks water, the object reaching longitudinal water-blocking is shut in the possible path that water longitudinally spreads along cable.
Metallic sheath adopts corrugated aluminum sheath technique, and corrugated aluminum sheath fully can provide the requirement of cable grounding short-circuit current capability, and it has more excellent capability of electromagnetic shielding simultaneously, can guarantee electromagnetic security when cable uses.Utilize metallic sheath intermolecular distance little, the characteristics such as lattice is fine and close, realize cable and have excellent radial water-proof function.
Anticorrosive coat of the present utility model utilizes the chemically stable characteristic of pitch, pitch is coated in metallic sheath unexpected, effectively can improve the resistance to corrosion of cable, utilize the advantage of the liquid good fluidity of pitch simultaneously, indiscoverable for naked eyes in metallic sheath crackle can be filled, thus supplement the radial waterproof ability of cable further.
Fire-resistant concept is incorporated in high-tension cable by the utility model first, and traditional flame retardant coating mainly adopts outside the outer wrapped mica tape technique of conductor or insulation and extrudes Ceramic silicon rubber technique.The outer wrapped mica tape technique of conductor is mainly suitable in the lower cable of the voltage such as lv power cable, control cables, and this technique cannot be applicable in high-tension cable; Insulation is outer extrudes Ceramic silicon rubber technique, this technique is the technique of middle pressure fire-resisting cable employing in recent years, because its material price is expensive and need high-order vulcanization process in production process, very easily cause the bad phenomenon such as insulation scald, distortion, this explained hereafter cycle is longer simultaneously, the wasting of resources is higher.And when producing very easily there is bulge, the large bad phenomenon such as external diameter, bubble in Ceramic silicon rubber.
Flame retardant coating of the present utility model adopts ceramic polyolefin to extrude structure, and this material adopts conventional extruder to produce, and it has the features such as production efficiency is high, energy consumption is low, with short production cycle.By the characteristic of ceramic polyolefin rapid ceramic under flame calcination, flame and most of heat are intercepted beyond cable insulation core, to guarantee that cable continues safe and stable operation when flame calcination.
Oversheath adopts and extrudes pattern, regulates line speed and extrusion temperature by reasonably arranging, and ensures that the mechanical performance of sheath meets the requirement of cable installation.
Products innovation point of the present utility model is:
1, the design of conductor structure
The external diameter caused to the cross-point formed due to the difference strand of the different number of plies of cable conductor is bigger than normal, and irrational twisting pitch causes cable to occur in long-term BENDING PROCESS, and local single wire fracture punctures insulation and the overall phenomenon of rupture of conductor.For above situation, the strand that the utility model changes strand and multiple twisted wire to and pitch, to obtain excellent bending resistance, simultaneously good by conductor diameter with more much smaller than conventional equivalent specifications external diameter.
2, the structural design of water blocking layer
In order to the requirement of the radial water-resisting and shielding that realize cable, the utility model adopts corrugated aluminum sheath as the metallic sheath of cable.By current capacity and the screening ability of aluminum itself, ensure that cable runs in metastable electromagnetic field environment; Utilize the features such as the intermolecular distance of aluminum itself is little, lattice is tight simultaneously, realize the radial water-resisting ability of cable.
3, the structural design of flame retardant coating
Cable fire structure is introduced in high-tension cable by the utility model first, flame retardant coating adopts ceramic polyolefin to extrude structure, by the characteristic of ceramic polyolefin rapid ceramic under flame calcination, flame and most of heat are intercepted beyond cable insulation core, to guarantee that cable continues safe and stable operation when flame calcination.
The utility model is by rigorous structural design and strict technology controlling and process, make that water resistant is set, fire-resistant, anticorrosion, waterproof 110kV and above plastic insulating power cable meeting under the defined terms such as product electric property, mechanical performance, improve reasonable structure, the stability of product, improve the useful life of cable shield effect and product, make this cable have higher water resistant tree, fire-resistant, anticorrosion, waterproof ability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1 conductor, 2 lapped shielding layers, 3 conductor shields, 4 insulating barriers, 5 insulation screens, 6 water-blocking buffer layer, 7 metal sheath layers, 8 anticorrosive coats, 9 flame retardant coatings, 10 oversheaths.
Embodiment
Water resistant tree, fire-resistant, anticorrosion, waterproof 110kV and above plastic insulating power cable, its cable core is made up of conductor 1, lapped shielding layer 2, conductor shield 3, insulating barrier 4, insulation screen 5.
Wherein, wrapped shielding 2 is placed on outside conductor 1, and conductor screen 3 is placed on outside lapped shielding layer, is outside equipped with insulating barrier 4 at conductor shield, and insulating barrier is outside equipped with insulation screen 5.
Cable core is outer wrappedly to be blocked water the water-blocking buffer layer 6 that zone of swelling forms by semiconductive, the metal sheath layer 7 that corrugated aluminum sheath is formed is provided with outside water-blocking buffer layer, the anticorrosive coat 8 that pitch is made is coated with outside metal sheath layer, be extruded with the flame retardant coating 9 that ceramic polyolefin is made outside anticorrosive coat, oversheath 10 is extruded in outside flame retardant coating.
Conductor forms by some tinned copper wires are stranded, and conductor shield 3, insulating barrier 4, insulation screen 5 adopt three-layer co-extruded shaping.
Claims (5)
1. water resistant tree, fire-resistant, anticorrosion, waterproof 110kV and above plastic insulating power cable, comprise cable core, oversheath, it is characterized in that, the insulation screen (5) that described cable core is arranged outward by conductor (1), the lapped shielding layer (2) be placed in outside conductor, the conductor shield (3) be placed in outside lapped shielding layer, the insulating barrier (4) arranged outward at conductor shield, insulating barrier is formed;
Described cable core is outer wrappedly to be blocked water the water-blocking buffer layer (6) that zone of swelling forms by semiconductive, the metal sheath layer (7) that corrugated aluminum sheath is formed is provided with outside water-blocking buffer layer, anticorrosive coat (8) is provided with outside metal sheath layer, be extruded with the flame retardant coating (9) that ceramic polyolefin is made outside anticorrosive coat, described oversheath (10) is placed in outside flame retardant coating.
2. water resistant according to claim 1 tree, fire-resistant, anticorrosion, waterproof 110kV and above plastic insulating power cable, it is characterized in that, described anticorrosive coat adopts pitch to be coated in outside metal sheath layer.
3. water resistant according to claim 1 tree, fire-resistant, anticorrosion, waterproof 110kV and above plastic insulating power cable, it is characterized in that, described conductor shield (3), insulating barrier (4), insulation screen (5) adopt three-layer co-extruded shaping.
4. water resistant according to claim 1 tree, fire-resistant, anticorrosion, waterproof 110kV and above plastic insulating power cable, it is characterized in that, described conductor forms by some tinned copper wires are stranded.
5. water resistant according to claim 1 tree, fire-resistant, anticorrosion, waterproof 110kV and above plastic insulating power cable, it is characterized in that, described oversheath extrudes shaping outside flame retardant coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520418242.2U CN204792117U (en) | 2015-06-17 | 2015-06-17 | Water -resistant tree, fire -resistant, anticorrosive, waterproof 110kV and above plastic insulation power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520418242.2U CN204792117U (en) | 2015-06-17 | 2015-06-17 | Water -resistant tree, fire -resistant, anticorrosive, waterproof 110kV and above plastic insulation power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204792117U true CN204792117U (en) | 2015-11-18 |
Family
ID=54532118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520418242.2U Expired - Fee Related CN204792117U (en) | 2015-06-17 | 2015-06-17 | Water -resistant tree, fire -resistant, anticorrosive, waterproof 110kV and above plastic insulation power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204792117U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106531315A (en) * | 2016-12-31 | 2017-03-22 | 无锡江南电缆有限公司 | Insulating high-voltage power cable |
| CN111192707A (en) * | 2020-01-06 | 2020-05-22 | 湖南湘江电缆有限公司 | High-temperature-resistant and aging-resistant power cable |
-
2015
- 2015-06-17 CN CN201520418242.2U patent/CN204792117U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106531315A (en) * | 2016-12-31 | 2017-03-22 | 无锡江南电缆有限公司 | Insulating high-voltage power cable |
| CN111192707A (en) * | 2020-01-06 | 2020-05-22 | 湖南湘江电缆有限公司 | High-temperature-resistant and aging-resistant power cable |
| CN111192707B (en) * | 2020-01-06 | 2020-09-29 | 湖南湘江电缆有限公司 | High-temperature-resistant and aging-resistant power cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20210617 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |