CN105405495A - Reinforced compressive wind energy cable - Google Patents
Reinforced compressive wind energy cable Download PDFInfo
- Publication number
- CN105405495A CN105405495A CN201510902266.XA CN201510902266A CN105405495A CN 105405495 A CN105405495 A CN 105405495A CN 201510902266 A CN201510902266 A CN 201510902266A CN 105405495 A CN105405495 A CN 105405495A
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- Prior art keywords
- core
- cable
- wind energy
- conductor
- layer
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/20—Metal tubes, e.g. lead sheaths
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2806—Protection against damage caused by corrosion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/2825—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable using a water impermeable sheath
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
- H01B9/024—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients composed of braided metal wire
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Abstract
The invention discloses a reinforced compressive wind energy cable. The reinforced compressive wind energy cable comprises a cable core; the cable core is formed by three power wire cores in parallel triangularly, one ground wire core and two reinforced cores in a stranding manner, wherein one ground wire core and the two reinforced cores are positioned in clearances of the three power wire cores; a filling layer is arranged at the clearance position of the cable core; a halogen-free fire-resistant belt, an inner sheath and an outer sheath are sequentially wrapped outside the cable core in an extruded manner; and a metal compressive tube is also arranged between the inner sheath and the outer sheath. The cable disclosed by the invention can resist low temperature, frequent twist, salt mist and dragging in a severe wind electric field environment; the cable is ensured to transmit electricity smoothly; normal operation of wind power equipment is satisfied; and furthermore, the cable disclosed by the invention is good in compressive performance, moisture resistance, sealing performance and shielding effect and low in attenuation.
Description
Technical field
The invention belongs to power cable field, be specifically related to a kind of reinforcement Anti-pressure wind energy cable.
Background technology
In numerous regenerative resources, with the fastest developing speed, the most applicable when number wind power generation economically at present.Wind power generation safety, clean, aboundresources, wind energy is inexhaustible, with not to the utmost, be a kind of recyclability resource of perpetuity.
Wind energy cable generally has the feature of torsional property excellence, and meanwhile, wind energy cable generally all requires that cable has good low temperature resistant, salt spray resistance, anti-towing performance, can guarantee that cable uses under the adverse circumstances of inland severe cold, coastal waters salt air corrosion like this.But the requirement only considering the performances such as antitorque, low temperature resistant, the salt spray resistance of cable for rated voltage 26/35kV and following low temperature resistant middle pressure wind energy cable is far from being enough, rational metallic shielding structure and ground configurations design are also the guarantees guaranteeing cable security of operation.
Stand in the angle ensureing that the security of operation meeting Large Copacity wind-driven generator requires, develop in a kind of Halogen-free flame-retardant low-temperature resistant and press wind energy cable, the requirement progressively meeting Wind turbines large scale development trend just seems particularly necessary, and to rated voltage 26/35kV and following low temperature resistant middle pressure wind energy cable conductor and the polymeric barrier layer materials of insulation, the research of insulating layer material, and cable metallic screens structure, ground configurations design be the key of pressing wind energy cable in Halogen-free flame-retardant low-temperature resistant; In addition, present cable core is easy to the disconnected core of bending occurs, and compressive property is poor, moistureproof and sealing is poor, and bendability is poorer.
Summary of the invention
Object of the present invention technical problem to be solved is just to provide a kind of reinforcement Anti-pressure wind energy cable, this cable possesses low temperature resistant, resistance to frequent torsion, salt spray resistance, anti-to pull under severe wind power plant environment, and keep that cable is smooth and easy to transmit electric power, meet the normal operation of wind power equipment, and compressive property, moistureproof and good airproof performance, decay little, shield effectiveness good.
One of the present invention strengthens Anti-pressure wind energy cable, comprises cable core, and its cable core is by three power wire core arranged side by side triangular in shape and is arranged in a wire core in three power wire core gaps and two strengthening cores are stranded forms; The gap of cable core is provided with packed layer, and cable core extrudes halogen-free flameproof band, inner sheath, oversheath outward successively; Metal compression tube is also provided with between inner/outer sheath; Described power wire core is by power line conductor and is extruded in conductor screen semi-conductive layer outside conductor, isolation strip, insulation screen, semiconductive lapping layer and metal screen layer successively and forms; Described wire core is made up of gnd conductor and the semi-conductive layer be extruded in outside gnd conductor; Described strengthening core is made up of center load bearing core and the resilient coating be extruded in outside the load bearing core of center.
Further improvement, described metal compression tube is the hard compression tube of wrapped or vertical bag, is specially embossing pipe, such that the mechanical strength of cable is high, compressive property good, and moistureproof and good airproof performance, embossing can improve its bending property.
Further improvement, the cross-linking type Halogen semiconductive shielding layer of described conductor screen semi-conductive layer to be Ethylene Propylene Terpolymer be base-material.
Further improvement, described isolation strip be with Ethylene Propylene Terpolymer be base-material cross-linking type in press second third insulation rubber.
Further improvement, the peelable cross-linking type Halogen semiconductive shielding layer of described insulation screen to be acetate ethylene copolymer and acrylonitrile-butadiene rubber be base-material.
Further improvement, described metal screen layer is tinned copper wire braid shielded.
Further improvement, described oversheath is made up of low smoke, zero halogen uvioresistant thermoset elastomer materials.
Beneficial effect of the present invention is:
1. this cable insulation core adopt Halogen conductor screen rubber, 35kV and following second third insulation rubber and Halogen semiconductive crosslinkable peelable insulation shielding rubber three-layer co-extruded; The Halogen conductor screen rubber researched and developed, Halogen semiconductive crosslinkable peelable insulation shielding rubber its specific insulation≤100 Ω cm, Halogen performance: pH value>=4.3, conductivity weighted value≤10 μ s/mm; Rated voltage is 400 × 10 lower than dielectric loss tan δ (95 ~ 100 DEG C) maximum of second third insulation rubber of pressing wind energy cable in 35kV Halogen-free flame-retardant low-temperature resistant
4, specific insulation minimum value is 10
16Ω cm; Dielectric loss tan δ (95 ~ 100 DEG C) maximum of pressing second third insulation rubber of wind energy cable in rated voltage 35kV Halogen-free flame-retardant low-temperature resistant is 50 × 10
4, specific insulation minimum value is 10
16Ω cm.Therefore, can guarantee that the local discharging level of cable is excellent, discharge capacity≤5Pc, insulation resistance excellent performance;
2, every root power wire core of the present invention adopts tinned copper wire braiding structure, can effectively suppress electromagnetic wave externally to be launched, reduce the interference to equipment;
3, ground wire is placed on in the gap of cable core by the present invention, not only plays the effect of conducting failure electric current, also plays the effect of balanced electric field, thus guarantees cable running safety;
4, the present invention is provided with strengthening core in cable, strengthens the anti-torsion ability of cable, and makes cable not frangibility, not easily produces disconnected core phenomenon; Strengthening core center is provided with a center load bearing core, and the stress point of inner wire concentrates in the load bearing core of center, and cable, in folding and unfolding winding process, protects inner wire annealing copper wire, and not frangibility;
5, between inner/outer sheath, be also provided with metal compression tube, such that the mechanical strength of cable is high, compressive property good, moistureproof and good airproof performance, embossing can improve its bending property.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, one of the present invention strengthens Anti-pressure wind energy cable, comprises cable core, and its cable core is by three power wire core arranged side by side triangular in shape and is arranged in a wire core in three power wire core gaps and two strengthening cores are stranded forms; The gap of cable core is provided with packed layer 7, and cable core extrudes halogen-free flameproof band 8, inner sheath 9, oversheath 11 outward successively; Metal compression tube 10 is also provided with between inner/outer sheath 9,11; Described power wire core is by power line conductor 1 and is extruded in conductor screen semi-conductive layer 2 outside conductor 1, isolation strip 3, insulation screen 4, semiconductive lapping layer 5 and metal screen layer 6 successively and forms; Described wire core is made up of gnd conductor 12 and the semi-conductive layer 13 be extruded in outside gnd conductor 12; Described strengthening core is made up of center load bearing core 14 and the resilient coating 15 be extruded in outside center load bearing core 14.
Described metal compression tube 10 is the hard compression tube of wrapped or vertical bag, is specially embossing pipe, such that the mechanical strength of cable is high, compressive property good, and moistureproof and good airproof performance, embossing can improve its bending property.
The cross-linking type Halogen semiconductive shielding layer of described conductor screen semi-conductive layer to be Ethylene Propylene Terpolymer be base-material, the specific insulation≤100 Ω cm of conductor shield and insulation screen, Halogen performance: pH value >=4.3, conductivity weighted value≤10 μ s/mm; Described insulating barrier be with Ethylene Propylene Terpolymer be base-material cross-linking type in press second third insulation rubber, rated voltage is 400 × 104 lower than dielectric loss tan δ (95 ~ 100 DEG C) maximum of second third insulation rubber of pressing wind energy cable in 35kV Halogen-free flame-retardant low-temperature resistant; Dielectric loss tan δ (95 ~ 100 DEG C) maximum of pressing second third insulation rubber of wind energy cable in rated voltage 35kV Halogen-free flame-retardant low-temperature resistant is 50 × 104, and specific insulation minimum value is 1016 Ω cm; The peelable cross-linking type Halogen semiconductive shielding layer of described insulation screen to be acetate ethylene copolymer and acrylonitrile-butadiene rubber be base-material; Described metal screen layer is tinned copper wire braid shielded; Described reinforced layer is woven by impregnation polyester cord and forms, the fracture strength > 1070N of impregnation polyester cord.
The above is only preferred implementation method of the present invention, it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvement, and these improvement also should be considered as protection scope of the present invention.
Claims (6)
1. strengthen an Anti-pressure wind energy cable, it is characterized in that: comprise cable core, its cable core is by three power wire core arranged side by side triangular in shape and is arranged in a wire core in three power wire core gaps and two strengthening cores are stranded forms; The gap of cable core is provided with packed layer (7), and cable core extrudes halogen-free flameproof band (8), inner sheath (9), oversheath (11) outward successively; Metal compression tube (10) is also provided with between inner/outer sheath (9,11); Described power wire core is by power line conductor (1) and is extruded in conductor (1) conductor screen semi-conductive layer (2) outward, isolation strip (3), insulation screen (4), semiconductive lapping layer (5) and metal screen layer (6) successively and forms; Described wire core is by gnd conductor (12) and be extruded in gnd conductor (12) semi-conductive layer outward (13) and form; Described strengthening core is by center load bearing core (14) and be extruded in center load bearing core (14) resilient coating outward (15) and form.
2. reinforcement Anti-pressure wind energy cable according to claim 1, is characterized in that, the hard compression tube that described metal compression tube (10) is wrapped or vertical bag.
3. reinforcement Anti-pressure wind energy cable according to claim 1, is characterized in that, described conductor screen semi-conductive layer (2) for Ethylene Propylene Terpolymer be the cross-linking type Halogen semiconductive shielding layer of base-material.
4. reinforcement Anti-pressure wind energy cable according to claim 1, is characterized in that, described isolation strip (3) be with Ethylene Propylene Terpolymer be base-material cross-linking type in press second third insulation rubber.
5. reinforcement Anti-pressure wind energy cable according to claim 1, is characterized in that, described insulation screen (4) for acetate ethylene copolymer and acrylonitrile-butadiene rubber be the peelable cross-linking type Halogen semiconductive shielding layer of base-material.
6. reinforcement Anti-pressure wind energy cable according to claim 1, is characterized in that, described metal screen layer (6) is tinned copper wire braid shielded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510902266.XA CN105405495A (en) | 2015-12-08 | 2015-12-08 | Reinforced compressive wind energy cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510902266.XA CN105405495A (en) | 2015-12-08 | 2015-12-08 | Reinforced compressive wind energy cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105405495A true CN105405495A (en) | 2016-03-16 |
Family
ID=55470928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510902266.XA Pending CN105405495A (en) | 2015-12-08 | 2015-12-08 | Reinforced compressive wind energy cable |
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| Country | Link |
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| CN (1) | CN105405495A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011165575A (en) * | 2010-02-12 | 2011-08-25 | Hitachi Cable Ltd | High-voltage cab tire cable |
| EP2453445A2 (en) * | 2010-11-10 | 2012-05-16 | Nexans | Power and/or telecommunication cable comprising a reinforced ground-check conductor |
| CN103093876A (en) * | 2011-10-27 | 2013-05-08 | 王震 | Metallic shield rubber jacketed flexible cable used for shuttle car in underground coal mine |
| CN203812632U (en) * | 2014-04-18 | 2014-09-03 | 河北华通线缆集团有限公司 | Composite cable |
| CN204463860U (en) * | 2015-01-22 | 2015-07-08 | 安徽凌宇电缆科技有限公司 | A kind of low smoke and zero halogen high-performance shuttle car rubber sleeve flexible cable |
| CN204706379U (en) * | 2015-06-25 | 2015-10-14 | 中天科技装备电缆有限公司 | A kind of wear-resisting resistance to wound optical fibers compound curl cable |
| CN205302978U (en) * | 2015-12-08 | 2016-06-08 | 江苏荣宜电缆有限公司 | Strengthen resistance to compression type wind energy cable |
-
2015
- 2015-12-08 CN CN201510902266.XA patent/CN105405495A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011165575A (en) * | 2010-02-12 | 2011-08-25 | Hitachi Cable Ltd | High-voltage cab tire cable |
| EP2453445A2 (en) * | 2010-11-10 | 2012-05-16 | Nexans | Power and/or telecommunication cable comprising a reinforced ground-check conductor |
| CN103093876A (en) * | 2011-10-27 | 2013-05-08 | 王震 | Metallic shield rubber jacketed flexible cable used for shuttle car in underground coal mine |
| CN203812632U (en) * | 2014-04-18 | 2014-09-03 | 河北华通线缆集团有限公司 | Composite cable |
| CN204463860U (en) * | 2015-01-22 | 2015-07-08 | 安徽凌宇电缆科技有限公司 | A kind of low smoke and zero halogen high-performance shuttle car rubber sleeve flexible cable |
| CN204706379U (en) * | 2015-06-25 | 2015-10-14 | 中天科技装备电缆有限公司 | A kind of wear-resisting resistance to wound optical fibers compound curl cable |
| CN205302978U (en) * | 2015-12-08 | 2016-06-08 | 江苏荣宜电缆有限公司 | Strengthen resistance to compression type wind energy cable |
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Application publication date: 20160316 |
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| WD01 | Invention patent application deemed withdrawn after publication |