CN107240448A - A kind of aluminium alloy flexible cable for power equipment - Google Patents
A kind of aluminium alloy flexible cable for power equipment Download PDFInfo
- Publication number
- CN107240448A CN107240448A CN201710614872.0A CN201710614872A CN107240448A CN 107240448 A CN107240448 A CN 107240448A CN 201710614872 A CN201710614872 A CN 201710614872A CN 107240448 A CN107240448 A CN 107240448A
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- China
- Prior art keywords
- aluminium alloy
- alloy flexible
- flexible cable
- layer
- cable
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
-
- 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
-
- 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
-
- 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
-
- 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
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
-
- 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
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
-
- 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
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/428—Heat conduction
-
- 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
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
Abstract
The invention belongs to field of cable technology, a kind of aluminium alloy flexible cable for power equipment is disclosed, from inside to outside including conductor, fireprotection layer, screen layer, heat transfer filler layer, and cable insulation；The conductor uses aluminium alloy flexible conductor；The fireprotection layer is mica belt；The screen layer is tinned copper wire woven shield.Aluminium alloy flexible cable flexility of the present invention is good, acid-alkali-corrosive-resisting, and anti-aging high-temperature resistance is strong, has a extensive future.
Description
Technical field
The invention belongs to field of electrical equipment, and in particular to a kind of aluminium alloy flexible cable for power equipment.
Background technology
Cable is the important component in distribution system, recently as production and living electric wire utilization day increasingly
Exhibition and popularize, quickly, and with expanding economy, the requirement to its material is also increasingly for amount increase the need for electric wire
Height, it requires the performances such as soft, wear-resisting, corrosion-resistant and high-low temperature resistant.Aluminium alloy conductor is the conductor material commonly used in cable.
The power outputs such as modern heavy construction equipment, high-tension electricity equipment increase increasingly, the electric wire fed for the kind equipment
Cable voltage class and the cross-section of cable also increase therewith, and the equipment fed by midium voltage cable distribution increases increasingly.Particularly case
Formula transformer, switch cubicle, high voltage converter etc., because device interior wiring space is with respect to relatively narrower, laying, installs, use
Middle cable is in smaller case of bending, and the rigid screen resilience that the bending of cable is produced causes laying installation extremely difficult, and mistake
Insulating barrier internal mechanical stresses caused by degree bending easily cause cable breakdown.Solve wiring space inside power equipment narrow
Small, it is difficult to laying installation, the problem for the failure risk that cable bend state is produced need to be reduced by improving cable bend performance
The rigid screen resilience produced during bending, and improve the electrical performance of cable insulation bend tension state, therefore it is contemplated that
Overcome the deficiencies in the prior art, develop a kind of aluminium alloy flexible cable for power equipment, solve above technical barrier.
The content of the invention
The purpose of the present invention is to overcome the defect of above-mentioned prior art there is provided a kind of aluminium alloy for power equipment is soft
Cable.
The present invention is achieved by the following technical solution：
A kind of aluminium alloy flexible cable for power equipment, from inside to outside including conductor 1, fireprotection layer 2, screen layer 3, heat transfer is filled out
Fill nitride layer 4, and cable insulation 5；
Further, the conductor 1 uses aluminium alloy flexible conductor；
Further, the fireprotection layer 2 is mica belt；
Further, the screen layer 3 is tinned copper wire woven shield；
Further, the heat transfer filler layer 4 by silicone grease and aluminium nitride according to 3:1 mass ratio, which is mixed, to be made；
Further, the cable insulation 5 is prepared according to following technique：
Nanometer silicon carbide is put into the polyvinylpyrrolidone of equal quality, 300rpm stirring 5min are subsequently placed in damp and hot
6 hours in environment, modified Nano carborundum is obtained；
By acrylic resin, bisphenol f type epoxy resin, phenolic resin, white carbon, phthalic anhydride, polytetrafluoroethylene (PTFE), poly- carbon
Acid esters and modified Nano carborundum are according to 200-300:70-120:30-50:10-15:3-5:5-7：15-20:7-12 quality
Than well mixed, banbury is added, mixing time is 5min, and mixing temperature is 90 DEG C, obtains major ingredient；
By major ingredient, magnesium stearate, cerous hypophosphate and molybdenum disulfide according to 200-300:2-3:3-5:2-3 mass ratio is thrown successively
Enter into centrifuge, after being well mixed, molten condition, Ran Houjing are squeezed into double screw extruder by 500rpm stirring 10min
After forming machine pulls out product, by cutting machine fixed length cutting, pipe-expanding machine is sent into, is produced after the completion of enlarging.
In the present invention, research foothold and beneficial effect mainly include the following aspects：
Conductive filler nitride layer of the present invention is made using silicone grease and aluminium nitride blend, good heat conductivity；Silicone grease is synthesized by refining
Oily thick inorganic thickening agent based on oil, and refine and form added with structural stabilizing agent, anticorrosive additive, with good waterproof
Sealing, waterproof, solvent resistance and creep resistance energy, do not corrode metal；Have the disadvantage that material is softer, make under long term high temperature state
With having dissociant precipitation in heat-conducting cream, processability is poor.Aluminium nitride powder thermal conductivity is good, and thermal coefficient of expansion is small, is good
Heat shock resistance material, said two devices are used cooperatively, and possess preferable heat conductivility；
Cable insulation outer layer needs intensity high, high pressure resistant, fire-retardant fireproof and flexible, phenolic resin and gather that the present invention is selected
Allyl resin, resistance to elevated temperatures is preferable, especially phenolic resin, even if the globality that can also keep its structure at high temperature and surely
It is qualitative；
Cerous hypophosphate maintains the stability of material, enhances the fire resistance property of material, fire-retardant using halogen-free expansion fire retardant
Performance is higher.Polytetrafluoroethylene (PTFE) has self-extinguishment, once ignition of cable, can prevent flame spread.Anti-wear agent is molybdenum disulfide,
Considerably increase the abrasion resistance of overcoat；Above-mentioned material not only greatly strengthen fireproof flame-retardant effect, and Stability Analysis of Structures, be difficult
Aoxidize and wear-resisting, service life is long；
Nanometer silicon carbide is the inorganic non-metallic material of excellent performance, and it has specific surface area big, and superficial attractive forces are strong, and chemistry is pure
The special performance such as degree is high, dispersive property is good, with its superior stability, reinforcing, thickening property and thixotropy, the present invention is led to
Cross and processing is modified to nanometer silicon carbide, it is evenly spread in organic material skeleton, tissue same performance is good, is distributed in
In the skeleton of material, mechanical strength is improved, and do not interfere with flexility；Magnesium stearate can strengthen heat endurance, prevent
Decompose oxidation.
The thermoplastic polyester that the present invention is readily able to deformation is changed into the thermosetting height with high resiliency, higher toughness
Molecularly Imprinted Polymer；Compared with Halogen crosslinking polyolefin insulated cable, cable insulation is more soft, and flexible, disclosure satisfy that
High pressure resistant and fire resistance is provided simultaneously with use, bear the requirement of overbending in narrow and small environment in cable.
Brief description of the drawings
Fig. 1 is the structural representation of cable of the present invention；
In Fig. 1：1- conductors, 2- fireprotection layers, 3- screen layers, 4- heat transfer filler layers, 5- cable insulations.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the application, have below in conjunction with the application
Body embodiment, is more clearly and completely described, it is clear that described embodiment is only the application one to the present invention
Divide embodiment, rather than whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making
The every other embodiment obtained under the premise of creative work, should all belong to the scope of protection of the invention.
Embodiment 1
As shown in figure 1, a kind of aluminium alloy flexible cable for power equipment, from inside to outside including conductor 1, fireprotection layer 2, screen layer
3, heat transfer filler layer 4, and cable insulation 5；
The conductor 1 uses aluminium alloy flexible conductor；
The fireprotection layer 2 is mica belt；
The screen layer 3 is tinned copper wire woven shield；
The heat transfer filler layer 4 is by silicone grease and aluminium nitride according to 3:1 mass ratio, which is mixed, to be made；
The cable insulation 5 is prepared according to following technique：
Nanometer silicon carbide is put into the polyvinylpyrrolidone of equal quality, 300rpm stirring 5min are subsequently placed in damp and hot
6 hours in environment, modified Nano carborundum is obtained；
By acrylic resin, bisphenol f type epoxy resin, phenolic resin, white carbon, phthalic anhydride, polytetrafluoroethylene (PTFE), poly- carbon
Acid esters and modified Nano carborundum are according to 200:70:30:10:3:5:15:7 mass ratio is well mixed, and adds banbury, close
The refining time is 5min, and mixing temperature is 90 DEG C, obtains major ingredient；
By major ingredient, magnesium stearate, cerous hypophosphate and molybdenum disulfide according to 200:2:3:2 mass ratio puts into centrifuge successively
In, after being well mixed, molten condition is squeezed into double screw extruder, then will be produced through forming machine by 500rpm stirring 10min
After product are pulled out, by cutting machine fixed length cutting, pipe-expanding machine is sent into, is produced after the completion of enlarging.
Embodiment 2
As shown in figure 1, a kind of aluminium alloy flexible cable for power equipment, from inside to outside including conductor 1, fireprotection layer 2, screen layer
3, heat transfer filler layer 4, and cable insulation 5；
The conductor 1 uses aluminium alloy flexible conductor；
The fireprotection layer 2 is mica belt；
The screen layer 3 is tinned copper wire woven shield；
The heat transfer filler layer 4 is by silicone grease and aluminium nitride according to 3:1 mass ratio, which is mixed, to be made；
The cable insulation 5 is prepared according to following technique：
Nanometer silicon carbide is put into the polyvinylpyrrolidone of equal quality, 300rpm stirring 5min are subsequently placed in damp and hot
6 hours in environment, modified Nano carborundum is obtained；
By acrylic resin, bisphenol f type epoxy resin, phenolic resin, white carbon, phthalic anhydride, polytetrafluoroethylene (PTFE), poly- carbon
Acid esters and modified Nano carborundum are according to 300:120:50:15:5:7:20:12 mass ratio is well mixed, and adds banbury,
Mixing time is 5min, and mixing temperature is 90 DEG C, obtains major ingredient；
By major ingredient, magnesium stearate, cerous hypophosphate and molybdenum disulfide according to 300:3:5:3 mass ratio puts into centrifuge successively
In, after being well mixed, molten condition is squeezed into double screw extruder, then will be produced through forming machine by 500rpm stirring 10min
After product are pulled out, by cutting machine fixed length cutting, pipe-expanding machine is sent into, is produced after the completion of enlarging.
Embodiment 3
The performance test of cable insulation layer material of the present invention, by taking embodiment 1 as an example, with conventional Halogen cross-linked polyolefin insulated electro
As a control group, specific test result is shown in Table 1 to cable：
Table 1
| Project | Unit | Control group | Embodiment 1 |
| Shore hardness | HA | 70 | 57 |
| Modulus of elasticity（Surely 100% is stretched） | MPa | 0.7 | 1.9 |
| Tensile strength | MPa | 12.3 | 11.7 |
| Elongation at break | % | 205 | 601 |
| Tensile strength change after 135 DEG C/168h heat ageings | % | +7.3 | +2.1 |
| Elongation at break rate of change after 135 DEG C/168h heat ageings | % | -10.4 | -5.2 |
| Specific insulation | ×10-15（Ω•cm） | 1.08 | 3.07 |
| Insulation puncture test（4D case of bendings） | KV | 45 | 84 |
| Pressure test（23KV/5min） | It can not puncture | It can not puncture |
Conclusion：Cable insulation layer material flexility of the present invention is good, and anti-aging high-temperature resistance is strong, and possesses preferable resistance to height
Performance is pressed, better than conventional Halogen cross-linked polyolefin insulating outer layer material.
Embodiment 4
Acid-alkali-corrosive-resisting performance test：
1st, test material is dipped into 10wt% sulfuric acid solution 30 days, by taking embodiment 2 as an example, gathered with conventional Halogen crosslinking
As a control group, each Specifeca tion speeification is determined alkene insulated cable, is shown in Table 2：
Table 2
| Group | Specific insulation conservation rate（%） | Modulus of elasticity conservation rate（%） | Tensile strength retention（%） | Hardness conservation rate（%） |
| Embodiment 2 | 98.1 | 96.6 | 95.4 | 105.7 |
| Control group | 91.3 | 89.4 | 90.2 | 104.1 |
2nd, test material is dipped into 6wt% sodium hydroxide solution 30 days, by taking embodiment 2 as an example, be crosslinked with conventional Halogen
As a control group, each Specifeca tion speeification is determined polyolefine insulated cable, is shown in Table 3：
Table 3
| Group | Specific insulation conservation rate（%） | Modulus of elasticity conservation rate（%） | Tensile strength retention（%） | Hardness conservation rate（%） |
| Embodiment 2 | 95.8 | 97.1 | 95.3 | 104.7 |
| Control group | 91.5 | 84.7 | 92.6 | 103.2 |
Conclusion：Cable of the present invention being capable of effectively acid-alkali-corrosive-resisting, and can keep preferable mechanical performance and insulating properties
Can etc., better than general cable product.
Above in association with specific embodiment, invention has been described, it will be appreciated by those skilled in the art that these are retouched
It is all exemplary to state, and is not limiting the scope of the invention.Those skilled in the art can be according to essence of the invention
God and principle make various variants and modifications to the present invention, and these variants and modifications are also within the scope of the invention.
Claims (6)
1. a kind of aluminium alloy flexible cable for power equipment, from inside to outside including conductor 1, fireprotection layer 2, screen layer 3, heat transfer
Filler layer 4, and cable insulation 5.
2. aluminium alloy flexible cable according to claim 1, it is characterised in that the conductor 1 uses aluminium alloy flexible conductor.
3. aluminium alloy flexible cable according to claim 1, it is characterised in that the fireprotection layer 2 is mica belt.
4. aluminium alloy flexible cable according to claim 1, it is characterised in that the screen layer 3 is that tinned copper wire weaves screen
Cover layer.
5. aluminium alloy flexible cable according to claim 1, it is characterised in that the heat transfer filler layer 4 by silicone grease and
Aluminium nitride is according to 3:1 mass ratio, which is mixed, to be made.
6. aluminium alloy flexible cable according to claim 1, it is characterised in that the cable insulation 5 is according to following technique
It is prepared：
1）Nanometer silicon carbide is put into the polyvinylpyrrolidone of equal quality, 300rpm stirring 5min are subsequently placed in wet
6 hours in thermal environment, modified Nano carborundum is obtained；
2）By acrylic resin, bisphenol f type epoxy resin, phenolic resin, white carbon, phthalic anhydride, polytetrafluoroethylene (PTFE), poly-
Carbonic ester and modified Nano carborundum are according to 200-300:70-120:30-50:10-15:3-5:5-7：15-20:7-12 matter
Amount adds banbury, mixing time is 5min than well mixed, and mixing temperature is 90 DEG C, obtains major ingredient；
3）By major ingredient, magnesium stearate, cerous hypophosphate and molybdenum disulfide according to 200-300:2-3:3-5:2-3 mass ratio is successively
Put into centrifuge, 500rpm stirring 10min after being well mixed, are squeezed into molten condition, then into double screw extruder
After product is pulled out through forming machine, by cutting machine fixed length cutting, pipe-expanding machine is sent into, is produced after the completion of enlarging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710614872.0A CN107240448A (en) | 2017-07-26 | 2017-07-26 | A kind of aluminium alloy flexible cable for power equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710614872.0A CN107240448A (en) | 2017-07-26 | 2017-07-26 | A kind of aluminium alloy flexible cable for power equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107240448A true CN107240448A (en) | 2017-10-10 |
Family
ID=59988877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710614872.0A Pending CN107240448A (en) | 2017-07-26 | 2017-07-26 | A kind of aluminium alloy flexible cable for power equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107240448A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1534690A (en) * | 2003-04-02 | 2004-10-06 | 珠海粤科清华电子陶瓷有限公司 | High heat conducting insulating silicon grease and its manufacturing method |
| CN105778300A (en) * | 2016-03-16 | 2016-07-20 | 国网山东省电力公司费县供电公司 | Underground power cable sheath tube |
| US20160260524A1 (en) * | 2015-03-03 | 2016-09-08 | General Cable Technologies Corporation | Cables formed from halogen-free compositions having fire retardant properties |
| CN105957631A (en) * | 2016-06-30 | 2016-09-21 | 安徽埃克森科技集团有限公司 | Flexible cable and preparation method therefor |
-
2017
- 2017-07-26 CN CN201710614872.0A patent/CN107240448A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1534690A (en) * | 2003-04-02 | 2004-10-06 | 珠海粤科清华电子陶瓷有限公司 | High heat conducting insulating silicon grease and its manufacturing method |
| US20160260524A1 (en) * | 2015-03-03 | 2016-09-08 | General Cable Technologies Corporation | Cables formed from halogen-free compositions having fire retardant properties |
| CN105778300A (en) * | 2016-03-16 | 2016-07-20 | 国网山东省电力公司费县供电公司 | Underground power cable sheath tube |
| CN105957631A (en) * | 2016-06-30 | 2016-09-21 | 安徽埃克森科技集团有限公司 | Flexible cable and preparation method therefor |
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Application publication date: 20171010 |