CN103871615B - Rated voltage 6 ~ 35kV high resiliency warp resistance wind energy cable and manufacture method - Google Patents
Rated voltage 6 ~ 35kV high resiliency warp resistance wind energy cable and manufacture method Download PDFInfo
- Publication number
- CN103871615B CN103871615B CN201410134564.4A CN201410134564A CN103871615B CN 103871615 B CN103871615 B CN 103871615B CN 201410134564 A CN201410134564 A CN 201410134564A CN 103871615 B CN103871615 B CN 103871615B
- Authority
- CN
- China
- Prior art keywords
- core
- conductor
- insulation
- cable
- braiding
- 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
- 238000000034 method Methods 0.000 title claims description 9
- 238000004519 manufacturing process Methods 0.000 title description 12
- 238000009413 insulation Methods 0.000 claims abstract description 59
- 239000004020 conductor Substances 0.000 claims abstract description 35
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 24
- 229920001971 elastomer Polymers 0.000 claims abstract description 17
- 229920002725 thermoplastic elastomer Polymers 0.000 claims abstract description 17
- 239000005060 rubber Substances 0.000 claims abstract description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052802 copper Inorganic materials 0.000 claims abstract description 14
- 239000010949 copper Substances 0.000 claims abstract description 14
- 239000003365 glass fiber Substances 0.000 claims abstract description 11
- 239000004952 Polyamide Substances 0.000 claims abstract description 7
- 230000004888 barrier function Effects 0.000 claims abstract description 7
- 229920002647 polyamide Polymers 0.000 claims abstract description 7
- 229920002943 EPDM rubber Polymers 0.000 claims abstract description 6
- 229920000742 Cotton Polymers 0.000 claims abstract description 5
- 238000009954 braiding Methods 0.000 claims description 32
- 238000001125 extrusion Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- 238000005987 sulfurization reaction Methods 0.000 claims description 10
- 235000009854 Cucurbita moschata Nutrition 0.000 claims description 8
- 240000001980 Cucurbita pepo Species 0.000 claims description 8
- 235000009852 Cucurbita pepo Nutrition 0.000 claims description 8
- 235000020354 squash Nutrition 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 244000025254 Cannabis sativa Species 0.000 claims description 3
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims description 3
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 235000009120 camo Nutrition 0.000 claims description 3
- 235000005607 chanvre indien Nutrition 0.000 claims description 3
- 238000000205 computational method Methods 0.000 claims description 3
- 239000011487 hemp Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000012774 insulation material Substances 0.000 claims 4
- 229910052755 nonmetal Inorganic materials 0.000 claims 2
- 238000003466 welding Methods 0.000 claims 2
- 238000004033 diameter control Methods 0.000 claims 1
- 239000000835 fiber Substances 0.000 claims 1
- 229920000728 polyester Polymers 0.000 abstract description 4
- 239000012209 synthetic fiber Substances 0.000 abstract description 4
- 229920002994 synthetic fiber Polymers 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000032683 aging Effects 0.000 abstract description 3
- 230000018109 developmental process Effects 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000004804 winding Methods 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 2
- UPLPHRJJTCUQAY-WIRWPRASSA-N 2,3-thioepoxy madol Chemical compound C([C@@H]1CC2)[C@@H]3S[C@@H]3C[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@](C)(O)[C@@]2(C)CC1 UPLPHRJJTCUQAY-WIRWPRASSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 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
- Ropes Or Cables (AREA)
Abstract
The invention discloses a kind of rated voltage 6 ~ 35kV high resiliency warp resistance wind energy cable, by three kinetic insulation cores with three ground insulation cores are stranded forms cable core, the outer overlap successively of cable core is surrounded with double-deck alkali-free glass fiber band, is extruded with thermoplastic elastomer (TPE) oversheath, and the outermost layer of cable is stainless steel wire, polyamide or polyesters synthetic fiber yarn braid; Each kinetic insulation core by zinc-plated copper free wire, stainless steel wire is stranded forms conductor, the outer overlap of conductor is surrounded with individual layer semiconductive cotton tape lapping layer, and three-layer co-extruded have conductor shield, ethylene propylene diene rubber insulating barrier and insulation screen to form kinetic insulation core; Semi-conductive rubber screen is extruded with outside each ground insulation core conductor.Cable of the present invention has the characteristics such as high-tensile, high-flexibility, high abrasion, oil resistant, ageing-resistant, the weather of resistance to external environment, is applicable to turbine and tower cylinder junction or its similar applications in high power wind-mill generating equipment.
Description
Technical field:
The present invention relates to a kind of rated voltage 6 ~ 35kV high resiliency warp resistance wind energy cable and manufacture method.
Background technology:
Wind energy, as a kind of clean regenerative resource, is more and more subject to the attention of countries in the world.Its reserves are huge, and Global Wind-energy total resources is about 2.74 × 10
9mW, wherein available wind energy is 2 × 10
7mW.Wind Energy In China reserves are very large, it is wide to distribute, and only the wind energy content of land just has an appointment 2.53 hundred million kilowatts, and developing and utilizingpotentiality is huge.
In recent years, affect by international macroeconomic situation, Chinese Economy Development speed eases up.For strong promote domestic demands, keep economic society to develop smoothly and faster, government increases the investment in fixed assets dynamics to traffic, energy field, supports and encourages Renewable Energy Development.As the new forms of energy of energy-conserving and environment-protective, Wind Power Generation Industry wins historic opportunity to develop, raises up against the market in the adverse environment that financial crisis is wreaked havoc, and growth momentum is swift and violent, and by the end of the beginning of this year, existing 25 provinces, the whole nation, municipality directly under the Central Government, autonomous region had wind-powered electricity generation installation.
The development prospect of the generation of electricity by new energy industries such as China Wind Power is very wide, estimates that the following a very long time all will keep high speed development, and profitability also promotes steadily by along with the ripe gradually of technology simultaneously.Along with the production domesticization of Wind Power In China installation and the scale of generating, wind power cost is expected to fall again.Therefore wind-powered electricity generation starts the ground by gold becoming more and more investor.Construction of Wind Power, generate electricity by way of merging two or more grid systems, the field such as wind power equipment manufacture becomes the bright spot of investment, market prospects are had an optimistic view of.
But the development of wind energy cable is but seriously delayed, and reason is that wind energy cable requirement has warp resistance, high-low temperature resistant, has the technical indicators such as high resiliency, domestic a lot of cable producer does not have these type of technical conditions.
Summary of the invention:
For overcoming the defect of prior art, the object of the present invention is to provide a kind of rated voltage 6 ~ 35kV high resiliency warp resistance wind energy cable and manufacture method, cable has the characteristics such as high-tensile, high-flexibility, high abrasion, oil resistant, ageing-resistant, the weather of resistance to external environment, also there is high bending winding, resistance to torsion simultaneously, resist pull, the function of many excellences such as environmental protection, be applicable to turbine and tower cylinder junction or its similar applications in high power wind-mill generating equipment.
Technical solution problem of the present invention adopts following technical scheme:
Rated voltage 6 ~ 35kV high resiliency warp resistance wind energy cable, by three kinetic insulation cores with three ground insulation cores are stranded forms cable core, be surrounded with double-deck alkali-free glass fiber band in the outer overlap successively of described cable core, be extruded with thermoplastic elastomer (TPE) oversheath, the outermost layer of cable is stainless steel wire, polyamide or polyesters synthetic fiber yarn braid;
Each described kinetic insulation core by zinc-plated copper free wire, stainless steel wire is stranded forms conductor, the outer overlap of conductor is surrounded with individual layer semiconductive cotton tape lapping layer, and three-layer co-extruded outside described lapping layer have conductor shield, ethylene propylene diene rubber insulating barrier and insulation screen to form kinetic insulation core;
Each described ground insulation core by zinc-plated copper free wire, stainless steel wire is stranded forms conductor, is extruded with semi-conductive rubber screen outside described conductor.
The preparation method of wind energy cable of the present invention, it comprises the following steps:
Steps A, conductor make; According to the single line radical of composition cable different cross section, in zinc-plated copper free wire, evenly add stainless steel wire during bundle strand conductor to strengthen, similar diameters answered by zinc-plated copper free wire and stainless steel wire, diameter allowable tolerance is ± 0.2mm, zinc-plated copper free wire and stainless steel wire radical than being 8:1, and have not all allowed joint in the middle of tin plated wire and stainless steel wire; The outer overlapping wrapped individual layer semiconductive cotton tape of conductor, the rate of putting up is not less than 15%;
The maximum gauge of conductor single line should meet the regulation of the 5th kind of zinc-plated soft copper conductor in GB/T3956-2008; In conductor, strand strand is to twisting to identical with during multiple strand, and outer strand is to being left-hand; Its stranded lay ratio should be not more than the regulation of following table:
Step B, kinetic insulation core make; Described conductor adopts three-layer co-extruded technique outward, i.e. conductor shield+ethylene propylene diene rubber insulating barrier+insulation screen, three layers of extrusion molding; Conductor shield extruded material is nonmetal semiconductive material, and its most minimal thickness is 0.6mm; Insulation shielding layer material is nonmetal semiconductive material, and its most minimal thickness is 0.8mm; Rated voltage 8.7/15kV and following cable insulation material are 10kV EPT rubber Insulation Material, the above cable insulation material of rated voltage 8.7/15kV is 35kV EPT rubber Insulation Material, the thinnest point of insulating barrier is not less than the 90%-0.1mm of nominal value, and average thickness is not less than nominal value, its nominal thickness should meet the regulation of following table:
Insulated wire cores extrusion die adopts squash type, and during mould apolegamy, core rod and die sleeve internal diameter perform by following provisions respectively:
Core rod internal diameter: D
core=D
0+ 2 ε
Middle mould internal diameter: D
in=D
0+ 2 δ
in* 1.05
Die sleeve internal diameter: D
outward=D
0+ 2 (δ
in+ 1.1* insulation thickness+δ
outward)
Wherein: D
0for extruding front core external diameter, ε was line surplus, δ
infor interior screen thickness, δ
outwardfor outer screen thickness; Cross selecting of line surplus ε, meet the regulation of following table:
When extruding in curing tube steam pressure, sulfuration linear speed and temperature control parameter as following table; Speed of production allows suitably adjustment to be as the criterion with actual cure efficiency the best;
Step C, ground insulation core make; Adopt outward at conductor and extrude semi-conductive rubber screen, ground insulation core thickness is to ensure that its external diameter is not less than 75% of kinetic insulation core external diameter and is as the criterion, and extrusion die adopts squash type, and during mould apolegamy, core rod and die sleeve internal diameter perform by following provisions respectively:
Core rod internal diameter: D
core=D
0+ ε
Wherein: D
0for extruding front core external diameter, ε was line surplus;
Cross selecting of line surplus ε, meet the regulation of following table:
Die sleeve internal diameter: D
cover=D
0+ 2 δ-(0.1 ~ 0.4) mm;
Wherein: D
0for extruding front core external diameter, δ is semi-conductive rubber shielding thickness;
When extruding in curing tube steam pressure, sulfuration linear speed and temperature control parameter as following table; Speed of production allows suitably adjustment to be as the criterion with actual cure efficiency the best;
Step D, three described kinetic insulation cores and three described ground insulation cores carry out dextrad stranding, during stranding, each core tension force controls evenly, insulated wire cores is alternately arranged according to power wire core ground connection core, stranding lay ratio controls between 12 ~ 14, cable core gap adopts the rope made of hemp to fill rounding, doubling mould is chosen according to laying up diameter, crossing line surplus controls between 0.5 ~ 1.0mm, the outer overlapping wrapped double-deck alkali-free glass fiber band of cable core, overlapping wrapped rate of putting up, between 25% ~ 30%, adopts left-hand wrapped time wrapped;
Step e, described in step D alkali-free glass fiber band skin adopt plsitive mold extrude thermoplastic elastomer (TPE) oversheath, protective cover material carries out drying before extrusion, baking temperature controls between 100 ~ 115 DEG C, and the time is 1.0 ~ 2.5 hours, and sheathing temperature meets the regulation of following table:
| Plastic extruding machine region | Temperature/DEG C |
| Charging | 95～105 |
| Bringing-up section 1 | 120～130 |
| Bringing-up section 2 | 135～145 |
| Bringing-up section 3 | 155～165 |
| Machine neck | 160～170 |
| Head | 165～175 |
| Die sleeve | 160～170 |
Sheath nominal thickness calculates according to the computational methods of GB/T12706.1-2008 national standard, and the thinnest point is not less than the 85%-0.1mm of nominal value, and average thickness is not less than nominal value;
Step F, weave braid outward at sheath, braid is made up of stainless steel wire and polyamide, and both number of spindles is identical, direction is contrary; Braid does not allow entirety to continue, and the end of a thread exposed should be had one's hair trimmed, and every 1m length allows replacing metal wire bar;
According to IEC60092-376:2003 international standard, per share radical and filament diameter is selected to require to carry out doubling, yarn-doubling tension is even, stainless steel wire joint adopts cold welding machine welding, pad should be smooth, rounding, without obviously protruding, fiber doubling width should be identical with wire doubling width, after doubling completes, bobbin is arranged on braiding machine, more gear changing, pitch and the tension force of adjustment braiding machine weave, when braiding line diameter is below 0.2mm, braiding machine starting up speed controls at 60% ~ 70% of maximum operating speed, when weave line diameter be 0.2mm and above time, braiding machine starting up speed controls at 50% ~ 60% of maximum operating speed,
Braiding lay ratio and pitch length/braid average diameter control between 2 ~ 4.5, and count is not less than 90%;
The computing formula of count is:
M＝2F-F2(1)
F＝and'/[π(D+2d')cosα](2)
tgα＝[π(d"+2d')]/H(3)
Kr＝{1+[π(d"+2d)/H]2}-1/2(4)
In formula: M is count and total coverage coefficient, F is that one side covers braiding coefficient, and tg α is braiding angle tangent, and Kr is braiding coefficient, H is lay of braiding, and d' is line diameter after braiding, and a is braiding half number of spindle unit, n is braiding doubling radical, and α is braiding angle, d " weaves front line diameter.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, conductor of the present invention is according to the single line radical of composition cable different cross section, in zinc-plated copper free wire, evenly add stainless steel wire during bundle strand conductor to strengthen, similar diameters (diameter allowable tolerance is ± 0.2mm) answered by tin plated wire and stainless steel wire, its radical ratio is about 8:1, and all do not allowed joint in the middle of tin plated wire and stainless steel wire, substantially increase the tensile strength of cable, guarantee the electric property that cable keeps excellent in running simultaneously, and flexible winding, to pull, long service life.
2, cable of the present invention adopts 3+3 symmetrical structure, adopts outside 3 wire core and extrudes semi-conductive rubber, replace the metal screen layer outside 3 traditional kinetic insulation cores; 3 kinetic insulation cores and 3 ground insulation cores are adopted to be alternately arranged during stranding, ground insulation core is closely connected with the insulation screen of kinetic insulation core, reach the effect replacing cable metallic screens layer, guarantee that cable has excellent electric property, mechanical performance and softness.
3, ground insulation external diameter of the present invention is not less than 75% of kinetic insulation core external diameter, and power wire core differs by fixed proportion with the external diameter of ground connection core, both ensure that the shielding properties of cable, is conducive to again the warp resistance performance improving cable.
4, extrude anti-modification TPE elastomer in the present invention, original TPE material is improved, not only there is excellent elasticity, toughness, intensity, there is the advantage that many other materials such as good resistance to environment is corrosion-resistant are incomparable simultaneously.The employing of this new material ensure that cable has the characteristics such as high-tensile, high-flexibility, high winding, high abrasion, oil resistant, ageing-resistant, the weather of resistance to external environment, environmental protection, meets the instructions for use of wind-power torsion-resistant song flexible cable completely.
5, the present invention adopts braiding stainless steel wire and polyamide or polyesters synthetic fiber yarn as outer jacket, substantially increases bending property and the tensile strength of cable, effectively protects the damage of sheath simultaneously, improve the useful life of cable.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of cable of the present invention.
Number in the figure: 1 zinc-plated copper free wire, 2 stainless steel wires, 3 lapping layers, 4 conductor shields, 5 ethylene propylene diene rubber insulating barriers, 6 insulation screens, 7 semi-conductive rubber screens, 8 alkali-free glass fiber bands, 9 oversheaths, 10 braids.
Below by way of embodiment, and the invention will be further described by reference to the accompanying drawings.
Embodiment:
Embodiment: rated voltage 6 ~ 35kV high resiliency warp resistance wind energy cable of the present invention, by three kinetic insulation cores with three ground insulation cores are stranded forms cable core, be surrounded with double-deck alkali-free glass fiber band 8 in the outer overlap successively of cable core, be extruded with thermoplastic elastomer (TPE) oversheath 9, the outermost layer of cable is the braid 10 that stainless steel wire and polyamide form;
Each kinetic insulation core by zinc-plated copper free wire 1, stainless steel wire 2 is stranded forms conductor, the outer overlap of conductor is surrounded with individual layer semiconductive cotton tape lapping layer 3, and three-layer co-extruded outside described lapping layer 3 have conductor shield 4, ethylene propylene diene rubber insulating barrier 5 and insulation screen 6 to form kinetic insulation core;
Each ground insulation core by zinc-plated copper free wire, stainless steel wire is stranded forms conductor, is extruded with semi-conductive rubber screen 7 outside described conductor.
The preparation method of wind energy cable of the present invention, it comprises the following steps:
Steps A, conductor make; According to the single line radical of composition cable different cross section, in zinc-plated copper free wire, evenly add stainless steel wire during bundle strand conductor to strengthen, similar diameters answered by zinc-plated copper free wire and stainless steel wire, diameter allowable tolerance is ± 0.2mm, zinc-plated copper free wire and stainless steel wire radical than being 8:1, and have not all allowed joint in the middle of tin plated wire and stainless steel wire; The outer overlapping wrapped individual layer semiconductive cotton tape of conductor, the rate of putting up is not less than 15%;
The maximum gauge of conductor single line should meet the regulation of the 5th kind of zinc-plated soft copper conductor in GB/T3956-2008; In conductor, strand strand is to twisting to identical with during multiple strand, and outer strand is to being left-hand; Its stranded lay ratio should be not more than the regulation of following table:
Step B, kinetic insulation core make; Described conductor adopts three-layer co-extruded technique outward, i.e. conductor shield+ethylene propylene diene rubber insulating barrier+insulation screen, three layers of extrusion molding; Conductor shield extruded material is nonmetal semiconductive material, and its most minimal thickness is 0.6mm; Insulation shielding layer material is nonmetal semiconductive material, and its most minimal thickness is 0.8mm; Rated voltage 8.7/15kV and following cable insulation material are 10kV EPT rubber Insulation Material, the above cable insulation material of rated voltage 8.7/15kV is 35kV EPT rubber Insulation Material, the thinnest point of insulating barrier is not less than the 90%-0.1mm of nominal value, and average thickness is not less than nominal value, its nominal thickness should meet the regulation of following table:
Insulated wire cores extrusion die adopts squash type, and during mould apolegamy, core rod and die sleeve internal diameter perform by following provisions respectively:
Core rod internal diameter: D
core=D
0+ 2 ε
Middle mould internal diameter: D
in=D
0+ 2 δ
in* 1.05
Die sleeve internal diameter: D
outward=D
0+ 2 (δ
in+ 1.1* insulation thickness+δ
outward)
Wherein: D
0for extruding front core external diameter, ε was line surplus, δ
infor interior screen thickness, δ
outwardfor outer screen thickness;
Cross selecting of line surplus ε, meet the regulation of following table:
When extruding in curing tube steam pressure, sulfuration linear speed and temperature control parameter as following table; Speed of production allows suitably adjustment to be as the criterion with actual cure efficiency the best;
Step C, ground insulation core make; Adopt outward at conductor and extrude semi-conductive rubber screen, ground insulation core thickness is to ensure that its external diameter is not less than 75% of kinetic insulation core external diameter and is as the criterion, and extrusion die adopts squash type, and during mould apolegamy, core rod and die sleeve internal diameter perform by following provisions respectively:
Core rod internal diameter: D
core=D
0+ ε
Wherein: D
0for extruding front core external diameter, ε was line surplus;
Cross selecting of line surplus ε, meet the regulation of following table:
Die sleeve internal diameter: D
cover=D
0+ 2 δ-(0.1 ~ 0.4) mm;
Wherein: D
0for extruding front core external diameter, δ is semi-conductive rubber shielding thickness;
When extruding in curing tube steam pressure, sulfuration linear speed and temperature control parameter as following table; Speed of production allows suitably adjustment to be as the criterion with actual cure efficiency the best;
Step D, three described kinetic insulation cores and three described ground insulation cores carry out dextrad stranding, during stranding, each core tension force controls evenly, insulated wire cores is alternately arranged according to power wire core ground connection core, stranding lay ratio controls between 12 ~ 14, cable core gap adopts the rope made of hemp to fill rounding, doubling mould is chosen according to laying up diameter, crossing line surplus controls between 0.5 ~ 1.0mm, the outer overlapping wrapped double-deck alkali-free glass fiber band of cable core, overlapping wrapped rate of putting up, between 25% ~ 30%, adopts left-hand wrapped time wrapped;
Step e, described in step D alkali-free glass fiber band skin adopt plsitive mold extrude thermoplastic elastomer (TPE) oversheath, protective cover material carries out drying before extrusion, baking temperature controls between 100 ~ 115 DEG C, and the time is 1.0 ~ 2.5 hours, and sheathing temperature meets the regulation of following table:
| Plastic extruding machine region | Temperature/DEG C |
| Charging | 95～105 |
| Bringing-up section 1 | 120～130 |
| Bringing-up section 2 | 135～145 |
| Bringing-up section 3 | 155～165 |
| Machine neck | 160～170 |
| Head | 165～175 |
| Die sleeve | 160～170 |
Sheath nominal thickness calculates according to the computational methods of GB/T12706.1-2008 national standard, and the thinnest point is not less than the 85%-0.1mm of nominal value, and average thickness is not less than nominal value;
Step F, weave braid outward at sheath, braid is made up of stainless steel wire and polyamide, and both number of spindles is identical, direction is contrary; Braid does not allow entirety to continue, and the end of a thread exposed should be had one's hair trimmed, and every 1m length allows replacing metal wire bar;
According to IEC60092-376:2003 international standard, per share radical and filament diameter is selected to require to carry out doubling, yarn-doubling tension is even, stainless steel wire joint adopts cold welding machine welding, pad should be smooth, rounding, without obviously protruding, fiber doubling width should be identical with wire doubling width, after doubling completes, bobbin is arranged on braiding machine, more gear changing, pitch and the tension force of adjustment braiding machine weave, when braiding line diameter is below 0.2mm, braiding machine starting up speed controls at 60% ~ 70% of maximum operating speed, when weave line diameter be 0.2mm and above time, braiding machine starting up speed controls at 50% ~ 60% of maximum operating speed,
Braiding lay ratio and pitch length/braid average diameter control between 2 ~ 4.5, and count is not less than 90%;
The computing formula of count is:
M＝2F-F2(1)
F＝and'/[π(D+2d')cosα](2)
tgα＝[π(d"+2d')]/H(3)
Kr＝{1+[π(d"+2d)/H]2}-1/2(4)
In formula: M is count and total coverage coefficient, F is that one side covers braiding coefficient, and tg α is braiding angle tangent, and Kr is braiding coefficient, H is lay of braiding, and d' is line diameter after braiding, and a is braiding half number of spindle unit, n is braiding doubling radical, and α is braiding angle, d " weaves front line diameter.
In cable making method implementation process of the present invention, should note following some:
1, according to the single line radical of composition cable different cross section, in zinc-plated copper free wire, evenly add stainless steel wire during bundle strand conductor and strengthen, and can not joint be there is in the middle of ensureing, to guarantee the tensile property of cable and bending, softness.
2, when kinetic insulation core extrudes, insulating material must ensure to clean, and adopts squash type to produce, and controls sulfuration steam pressure, curingprocess rate in production process well, and adjusts mould, forbids occurring the bad phenomenon such as eccentric, sulfuration is uneven, broken hole.
3, when ground insulation core extrudes, insulating material is necessary for semi-conductive rubber material, and adopt squash type to produce, sulfuration steam pressure, curingprocess rate is controlled well in production process, and adjust mould, forbid the bad phenomenon such as appearance is eccentric, sulfuration is uneven, broken hole, and attentional manipulation ground insulation external diameter is not less than 75% of kinetic insulation core external diameter.
4, stranding adopts the symmetrical stranding of 3+3, insulated wire cores is alternately arranged according to 1 power wire core, 1 ground connection core, core tension force controls evenly, stranding lay ratio controls between 12 ~ 14, avoids the frequent movement of cable core in bending moving process and causes the phenomenons such as the extruding of core, stretching and destroy the insulation property of core; Cable core answers overlapping wrapped suitable band outward, does not allow to occur bottom pour ladle, wrapped loose phenomenon.
5, oversheath extrudes modification TPE elastomer sheath, the product quality of protective cover material should be noted, forbid occurring phenomenons such as getting damp, and carry out certain drying and processing before extrusion, extrusion temperature will control to suitable scope, to ensure good plasticizing and perfect technical matters.
6, stainless steel wire and polyamide or the polyesters synthetic fiber yarn composite armor external protection as cable is woven; being convinced of its outward appearance, impulse-free robustness must be ensured, without phenomenons such as leaks; when requiring braiding; braided wires tension force wants consistent; pitch will be controlled well; joint should process smooth, forbids braid to occur the bad phenomenon such as burr, eye, to ensure electric conductivity and the electric property of cable.
Claims (1)
1. rated voltage 6 ~ 35kV high resiliency warp resistance wind energy cable, it is characterized in that, by three kinetic insulation cores with three ground insulation cores are stranded forms cable core, be surrounded with double-deck alkali-free glass fiber band (8) in the outer overlap successively of described cable core, be extruded with thermoplastic elastomer (TPE) oversheath (9), the outermost layer of cable is the braid (10) that stainless steel wire and polyamide form;
Each described kinetic insulation core by zinc-plated copper free wire (1), stainless steel wire (2) is stranded forms conductor, the outer overlap of conductor is surrounded with individual layer semiconductive cotton tape lapping layer (3), and described lapping layer (3) is three-layer co-extruded outward has conductor shield (4), ethylene propylene diene rubber insulating barrier (5) and insulation screen (6) to form kinetic insulation core;
Each described ground insulation core by zinc-plated copper free wire (1), stainless steel wire (2) is stranded forms conductor, is extruded with semi-conductive rubber screen (7) outside described conductor;
The preparation method of described wind energy cable, it comprises the following steps:
Steps A, conductor make; According to the single line radical of composition cable different cross section, in zinc-plated copper free wire, evenly add stainless steel wire during bundle strand conductor to strengthen, similar diameters answered by zinc-plated copper free wire and stainless steel wire, diameter allowable tolerance is ± 0.2mm, zinc-plated copper free wire and stainless steel wire radical than being 8:1, and have not all allowed joint in the middle of tin plated wire and stainless steel wire; The outer overlapping wrapped individual layer semiconductive cotton tape of conductor, the rate of putting up is not less than 15%;
The maximum gauge of conductor single line should meet the regulation of the 5th kind of zinc-plated soft copper conductor in GB/T3956-2008; In conductor, strand strand is to twisting to identical with during multiple strand, and outer strand is to being left-hand; Its stranded lay ratio should be not more than the regulation of following table:
Step B, kinetic insulation core make; Described conductor adopts three-layer co-extruded technique outward, i.e. conductor shield+ethylene propylene diene rubber insulating barrier+insulation screen, three layers of extrusion molding; Conductor shield extruded material is nonmetal semiconductive material, and its most minimal thickness is 0.6mm; Insulation shielding layer material is nonmetal semiconductive material, and its most minimal thickness is 0.8mm; Rated voltage 8.7/15kV and following cable insulation material are 10kV EPT rubber Insulation Material, the above cable insulation material of rated voltage 8.7/15kV is 35kV EPT rubber Insulation Material, the thinnest point of insulating barrier is not less than the 90%-0.1mm of nominal value, and average thickness is not less than nominal value, its nominal thickness should meet the regulation of following table:
Insulated wire cores extrusion die adopts squash type, and during mould apolegamy, core rod and die sleeve internal diameter perform by following provisions respectively:
Core rod internal diameter: D
core=D
0+ 2 ε
Middle mould internal diameter: D
in=D
0+ 2 δ
in* 1.05
Die sleeve internal diameter: D
outward=D
0+ 2 (δ
in+ 1.1* insulation thickness+δ
outward)
Wherein: D
0for extruding front core external diameter, ε was line surplus, δ
infor interior screen thickness, δ
outwardfor outer screen thickness;
Cross selecting of line surplus ε, meet the regulation of following table:
When extruding in curing tube steam pressure, sulfuration linear speed and temperature control parameter as following table;
Step C, ground insulation core make; Adopt outward at conductor and extrude semi-conductive rubber screen, ground insulation core thickness is to ensure that its external diameter is not less than 75% of kinetic insulation core external diameter and is as the criterion, and extrusion die adopts squash type, and during mould apolegamy, core rod and die sleeve internal diameter perform by following provisions respectively:
Core rod internal diameter: D
core=D
0+ ε
Wherein: D
0for extruding front core external diameter, ε was line surplus;
Cross selecting of line surplus ε, meet the regulation of following table:
Die sleeve internal diameter: D
cover=D
0+ 2 δ-(0.1 ~ 0.4) mm;
Wherein: D
0for extruding front core external diameter, δ is semi-conductive rubber shielding thickness;
When extruding in curing tube steam pressure, sulfuration linear speed and temperature control parameter as following table;
Step D, three described kinetic insulation cores and three described ground insulation cores carry out dextrad stranding, during stranding, each core tension force controls evenly, insulated wire cores is alternately arranged according to power wire core ground connection core, stranding lay ratio controls between 12 ~ 14, cable core gap adopts the rope made of hemp to fill rounding, doubling mould is chosen according to laying up diameter, crossing line surplus controls between 0.5 ~ 1.0mm, the outer overlapping wrapped double-deck alkali-free glass fiber band of cable core, overlapping wrapped rate of putting up, between 25% ~ 30%, adopts left-hand wrapped time wrapped;
Step e, described in step D alkali-free glass fiber band skin adopt plsitive mold extrude thermoplastic elastomer (TPE) oversheath, protective cover material carries out drying before extrusion, baking temperature controls between 100 ~ 115 DEG C, and the time is 1.0 ~ 2.5 hours, and sheathing temperature meets the regulation of following table:
Sheath nominal thickness calculates according to the computational methods of GB/T12706.1-2008 national standard, and the thinnest point is not less than the 85%-0.1mm of nominal value, and average thickness is not less than nominal value;
Step F, weave braid (10) outward at sheath, braid is made up of stainless steel wire and polyamide, and both number of spindles is identical, direction is contrary; Braid does not allow entirety to continue, and the end of a thread exposed should be had one's hair trimmed, and every 1m length allows replacing metal wire bar;
According to IEC60092-376:2003 international standard, per share radical and filament diameter is selected to require to carry out doubling, yarn-doubling tension is even, stainless steel wire joint adopts cold welding machine welding, pad should be smooth, rounding, without obviously protruding, fiber doubling width should be identical with wire doubling width, after doubling completes, bobbin is arranged on braiding machine, more gear changing, pitch and the tension force of adjustment braiding machine weave, when braiding line diameter is below 0.2mm, braiding machine starting up speed controls at 60% ~ 70% of maximum operating speed, when weave line diameter be 0.2mm and above time, braiding machine starting up speed controls at 50% ~ 60% of maximum operating speed,
Braiding lay ratio and pitch length/braid average diameter control between 2 ~ 4.5, and count is not less than 90%;
The computing formula of count is:
M＝2F-F2(1)
F＝and'/[π(D+2d')cosα](2)
tgα＝[π(d"+2d')]/H(3)
Kr＝{1+[π(d"+2d)/H]2}-1/2(4)
In formula: M is count and total coverage coefficient, F is that one side covers braiding coefficient, and tg α is braiding angle tangent, and Kr is braiding coefficient, H is lay of braiding, and d' is line diameter after braiding, and a is braiding half number of spindle unit, n is braiding doubling radical, and α is braiding angle, d " weaves front line diameter.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510888550.6A CN105321627B (en) | 2014-04-02 | 2014-04-02 | 6～35kV of rated voltage high resiliency warp resistance wind energy cables and manufacture method |
| CN201410134564.4A CN103871615B (en) | 2014-04-02 | 2014-04-02 | Rated voltage 6 ~ 35kV high resiliency warp resistance wind energy cable and manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410134564.4A CN103871615B (en) | 2014-04-02 | 2014-04-02 | Rated voltage 6 ~ 35kV high resiliency warp resistance wind energy cable and manufacture method |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510888550.6A Division CN105321627B (en) | 2014-04-02 | 2014-04-02 | 6～35kV of rated voltage high resiliency warp resistance wind energy cables and manufacture method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103871615A CN103871615A (en) | 2014-06-18 |
| CN103871615B true CN103871615B (en) | 2016-03-09 |
Family
ID=50910053
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510888550.6A Active CN105321627B (en) | 2014-04-02 | 2014-04-02 | 6～35kV of rated voltage high resiliency warp resistance wind energy cables and manufacture method |
| CN201410134564.4A Active CN103871615B (en) | 2014-04-02 | 2014-04-02 | Rated voltage 6 ~ 35kV high resiliency warp resistance wind energy cable and manufacture method |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510888550.6A Active CN105321627B (en) | 2014-04-02 | 2014-04-02 | 6～35kV of rated voltage high resiliency warp resistance wind energy cables and manufacture method |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN105321627B (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167252B (en) * | 2014-09-02 | 2016-09-07 | 中天科技装备电缆有限公司 | A kind of rail traffic vehicles high-voltage power cable and technological process thereof |
| CN104361945B (en) * | 2014-11-13 | 2016-08-24 | 无锡市明珠电缆有限公司 | A kind of Halogen-free flame-retardant low-temperature resistant is pressed the preparation method of wind energy cable |
| CN104376922A (en) * | 2014-11-25 | 2015-02-25 | 四川明星电缆股份有限公司 | Manufacturing method of rubber jacketed flexible cables for shield tunneling machines |
| CN104916355A (en) * | 2015-06-25 | 2015-09-16 | 中天科技装备电缆有限公司 | High resistance tensile cold reel cable and preparation method thereof |
| CN105869726A (en) * | 2016-05-20 | 2016-08-17 | 常熟市鑫华电子科技有限公司 | High-elasticity and shielding control composite cable used for road machinery |
| CN105869763A (en) * | 2016-05-20 | 2016-08-17 | 安徽宏力特种线缆有限公司 | Photoelectric compound insulated power cable |
| CN106128646A (en) * | 2016-07-15 | 2016-11-16 | 宝上电缆有限公司 | A kind of cable insulation and the production control method of jacket thickness |
| CN109308956A (en) * | 2017-07-28 | 2019-02-05 | 常州船用电缆有限责任公司 | Cable for wind-power generator |
| CN109599205A (en) * | 2018-11-09 | 2019-04-09 | 安徽凌宇电缆科技有限公司 | A kind of intelligence engineering equipment uses optoelectronic composite cable |
| CN109859880B (en) * | 2019-01-29 | 2024-03-12 | 安徽凌宇电缆科技有限公司 | One-step formed metal shielding mobile rubber jacketed flexible cable with reinforcing layer and wear-resistant layer |
| CN109859896B (en) * | 2019-04-23 | 2024-02-23 | 优易电缆(张家港)有限公司 | Multi-strand enameled wire conductor composite cable |
| CN110060807A (en) * | 2019-05-22 | 2019-07-26 | 安徽凌宇电缆科技有限公司 | A kind of naval vessel antiultraviolet, corrosion-resistant survey magnetic rubber flexible cable |
| CN110690013B (en) * | 2019-09-11 | 2022-11-04 | 上海福尔欣线缆有限公司 | Preparation method of special multi-core cable for new energy automobile |
| CN111081418A (en) * | 2019-12-23 | 2020-04-28 | 南通市鹏程电缆有限公司 | High-performance tensile tear-resistant flame-retardant cable and manufacturing method thereof |
| CN111326282A (en) * | 2020-03-19 | 2020-06-23 | 东莞市优讯电子科技有限公司 | Ultra-flexible cable |
| CN112863741A (en) * | 2021-03-02 | 2021-05-28 | 三一重能股份有限公司 | Medium voltage cable assembly |
| CN113871064B (en) * | 2021-08-24 | 2023-08-22 | 江苏上上电缆集团有限公司 | Manufacturing method of 105 ℃ torsion-resistant wind energy cable and cable |
| CN116130149B (en) * | 2023-03-30 | 2024-02-02 | 上海飞航电线电缆有限公司 | Armored flexible cable and manufacturing method thereof |
| CN117334378B (en) * | 2023-10-19 | 2024-05-10 | 江苏亨通高压海缆有限公司 | Tensile bunched dynamic degaussing cable for ship and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202134266U (en) * | 2011-05-20 | 2012-02-01 | 安徽华能电缆集团有限公司 | 21/35kV wind power generation twist-resistant flexible power cable |
| CN202694972U (en) * | 2012-07-20 | 2013-01-23 | 浙江万马电缆股份有限公司 | 26/35kV twist-resistant flexible cable for offshore wind power generation |
| CN203118658U (en) * | 2013-03-06 | 2013-08-07 | 天津金山电线电缆股份有限公司 | Torsion resistant cable used for wind power generation equipment |
| CN203760164U (en) * | 2014-04-02 | 2014-08-06 | 新亚特电缆股份有限公司 | High-elastic torsion-resistant wind energy cable with nominal voltage of 6 to 35kV |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4267419B2 (en) * | 2003-10-14 | 2009-05-27 | タツタ電線株式会社 | Wind power generator cable |
| JP2012221597A (en) * | 2011-04-04 | 2012-11-12 | Viscas Corp | Cv cable |
| CN202230765U (en) * | 2011-09-08 | 2012-05-23 | 无锡市明珠电缆有限公司 | Reel power mobile flexible cable for a port machine |
| CN102360603B (en) * | 2011-11-04 | 2013-03-27 | 安徽新亚特电缆集团有限公司 | Special tensile dragging control cable and method for manufacturing same |
-
2014
- 2014-04-02 CN CN201510888550.6A patent/CN105321627B/en active Active
- 2014-04-02 CN CN201410134564.4A patent/CN103871615B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202134266U (en) * | 2011-05-20 | 2012-02-01 | 安徽华能电缆集团有限公司 | 21/35kV wind power generation twist-resistant flexible power cable |
| CN202694972U (en) * | 2012-07-20 | 2013-01-23 | 浙江万马电缆股份有限公司 | 26/35kV twist-resistant flexible cable for offshore wind power generation |
| CN203118658U (en) * | 2013-03-06 | 2013-08-07 | 天津金山电线电缆股份有限公司 | Torsion resistant cable used for wind power generation equipment |
| CN203760164U (en) * | 2014-04-02 | 2014-08-06 | 新亚特电缆股份有限公司 | High-elastic torsion-resistant wind energy cable with nominal voltage of 6 to 35kV |
Non-Patent Citations (1)
| Title |
|---|
| 20/35 kV风力发电用耐扭曲电力电缆的研制;李武林;《电线电缆》;20101025(第5期);23页左栏倒数第1段-24页右栏第3段，图1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103871615A (en) | 2014-06-18 |
| CN105321627B (en) | 2017-03-15 |
| CN105321627A (en) | 2016-02-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103871615B (en) | Rated voltage 6 ~ 35kV high resiliency warp resistance wind energy cable and manufacture method | |
| CN106373646A (en) | Wear-resistant, drag-resistant and low-temperature resistant flexible cable and fabrication method thereof | |
| CN105206336A (en) | Large-section steel core aluminum stranded wire and manufacturing method thereof | |
| CN104916369B (en) | Photoelectrical composite torsion-resistant medium-voltage wind power cable and method for manufacturing the same | |
| CN104361927B (en) | Shield machine rubber sleeve flexible cable | |
| CN201910284U (en) | Novel buggy ladle cable | |
| CN109872842A (en) | A kind of intermediate frequency winding flexible cable for charging in smart energy airport and its production process | |
| CN203760164U (en) | High-elastic torsion-resistant wind energy cable with nominal voltage of 6 to 35kV | |
| CN104916355A (en) | High resistance tensile cold reel cable and preparation method thereof | |
| CN201590283U (en) | Composite material core for reinforced cable and reinforced cable | |
| CN209374105U (en) | A kind of low pressure wind energy cable | |
| CN102347111B (en) | Method for manufacturing enhanced flat cable for wagon dumper | |
| CN103779008A (en) | Macromolecule composite-fiber logging cable and preparation method thereof | |
| CN204288850U (en) | Shield machine rubber sleeve flexible cable | |
| CN109338770A (en) | A kind of long-span electric transmission line super extra-high strong galvanized strand wires and its twisting method | |
| CN106653162A (en) | Medium-voltage trailing cable applied to intelligent energy tunneling machine and production process | |
| CN109859880B (en) | One-step formed metal shielding mobile rubber jacketed flexible cable with reinforcing layer and wear-resistant layer | |
| CN207441328U (en) | A kind of high-temperature-restension-resistant tension-resistant flexible cable | |
| CN204029421U (en) | A kind of light-type optical fiber composite submarine cable | |
| CN103745769B (en) | A kind of high soft resistance to song is had mercy on robot cable | |
| CN203366834U (en) | Rubber sleeve flexible cable for coal cutter | |
| CN116741457A (en) | Tensile torsion-resistant 66kV high-voltage cable for offshore wind power generation and preparation method thereof | |
| CN209487175U (en) | A kind of intermediate frequency winding flexible cable | |
| CN205692590U (en) | Tensile type wind generator system flexible cable | |
| CN204596448U (en) | High distortion resistant flexible cable used for wind power generation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Rated voltage 6~35kv high elastic torsion resistant wind energy cable and its manufacturing method Effective date of registration: 20220719 Granted publication date: 20160309 Pledgee: Huizhou Commercial Bank Co.,Ltd. Wuhu Zhongshan South Road Branch Pledgor: SIAIT CABLE Co.,Ltd. Registration number: Y2022980010766 |