CN203218025U - Flame-retardant aluminum alloy conductor interlocking armored low-voltage power cable - Google Patents
Flame-retardant aluminum alloy conductor interlocking armored low-voltage power cable Download PDFInfo
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- CN203218025U CN203218025U CN 201320221295 CN201320221295U CN203218025U CN 203218025 U CN203218025 U CN 203218025U CN 201320221295 CN201320221295 CN 201320221295 CN 201320221295 U CN201320221295 U CN 201320221295U CN 203218025 U CN203218025 U CN 203218025U
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Abstract
The utility model discloses a flame-retardant aluminum alloy conductor interlocking armored low-voltage power cable, which comprises three circular conductor units composed of circular copper conductors and polyethylene insulation layers covered outside the circular copper conductors, wherein each circular copper conductor is composed of a first aluminum alloy wire arranged in the center and 6 second aluminum alloy wires twisted on the periphery of the first aluminum alloy wire; first and second mesh fiberglass belts woven by fiberglass filaments are sequentially wrapped on the outer surface of the three circular conductor units; a flame-retardant polyvinyl chloride layer is extruded and wrapped on the outer surface of the second mesh fiberglass belt; an aluminum alloy belt interlocking armored layer is sleeved on the outer surface of the flame-retardant polyvinyl chloride layer; and water-blocking filling ropes are filled between the first mesh fiberglass belt and the circular conductor units. The flame-retardant aluminum alloy conductor interlocking armored low-voltage power cable has the advantages of being light in weight, low in cost, stable in price and the like, the flexible performance is substantially increased, so that the bending radius of the cable is only 7 times larger than the outer diameter, and the tensile strength of the cable is improved.
Description
Technical field
The utility model relates to a kind of lv power cable, relates in particular to a kind of flame retardant type aluminium alloy conductor interlock type armouring lv power cable.
Background technology
Since nineteen sixty-eight, U.S.'s south cable companies just begins development and production alloy power cable, at present municipal civilian and worker, the commercial building 90% or more all is employing alloy power cable in the U.S., and the alloy power cable obtains American Architecture designer and electrical design teacher and affirms and recommend with the convenient aspect such as lay consistent in security performance.
China's electrician trade is from nineteen fifty-seven to 1973 year, aluminium cable accounts for more than 60% of the total consumption of conductor, enter the mid-90, the popularization of copper core cable has the gesture of cornering the market greatly, and now, the consumption of aluminium conductor glides again and again, worth thinking deeply about is, the supply of China's copper concentrate is less than 30%, and the ratio above 70% needs dependence on import, causes the architectural electricity cost high.But it is 3,700,000,000 tons that present China has verified bauxite reserves, and under such mineral resources advantage, why not we develop existing resource.Along with science and technology development, the aluminium of high-quality, high-tech content is developed, and the current resources situation of the rich aluminium of global poor copper has been more than 3 times of aluminium valency before the copper marked price in addition, and " with aluminium joint copper " will become natural selection.
Summary of the invention
The utility model provides a kind of flame retardant type aluminium alloy conductor interlock type armouring lv power cable, this armouring lv power cable has in light weight, advantages such as cost is low, price steadiness, and flexility significantly improves, the bending radius that makes cable only is 7 times of external diameters, improved the tensile strength of cable, can be supported in the building of large span, can alleviate the heavy burden requirement to construction steel structure greatly, also improve the mechanical performance of cable.
For achieving the above object, the technical solution adopted in the utility model is: a kind of flame retardant type aluminium alloy conductor interlock type armouring lv power cable, comprise three round conductor unit of being made up of circle copper conductor and the insulation polyethylene layer that is coated on its outer surface, described round copper conductor is made up of first aluminum-alloy wire that is positioned at the center and 6 stranded second aluminum-alloy wires around first aluminum-alloy wire;
Wrapped in described three round conductor unit outer surfaces successively by first, second netted glass fiber tape that the glass fiber braiding forms;
One flame-proof polyvinyl chloride layer extrudes in the described second netted glass fiber tape outer surface;
The chain armour of one aluminum alloy strip is set in described flame-proof polyvinyl chloride outer surface layer by layer;
Be filled with the gasket for packing that blocks water between the described first netted glass fiber tape and the round conductor unit.
Further improved technical scheme is as follows in the technique scheme:
1, in the such scheme, described first aluminum-alloy wire, the second aluminum-alloy wire diameter are 2.6 ~ 2.65mm.
2, in the such scheme, described first, second netted glass fibre tape thickness is 0.16 ~ 0.18mm.
3, in the such scheme, the thickness of described insulation polyethylene layer is 0.9mm.
4, in the such scheme, the thickness of described flame-proof polyvinyl chloride layer is 1 ~ 2mm.
5, in the such scheme, also comprise 12 3 Al alloy silks, these 12 3 Al alloy skein silks close and form outer conducting layer around inner conducting layers.
Because technique scheme is used, the utility model compared with prior art has following advantage:
The utility model flame retardant type aluminium alloy conductor interlock type armouring lv power cable, its have in light weight, lay advantages such as facility, cost are low, price steadiness, overcome copper cost height, price big rise and big fall and the aluminium mechanical performance is low, connect defectives such as instability; Secondly, flexility significantly improves, the bending radius that makes cable only is 7 times of external diameters, improved the tensile strength of cable, can be supported in the building of large span, proportion only is about 1/3rd of copper, can alleviate the heavy burden requirement to construction steel structure greatly, has saved production cost and laid down cost is installed; In addition, outermost layer adopts the chain sheath of superpower alloy, makes cable have certain fire-retardant, block-water performance, has also improved the mechanical performance of cable simultaneously.
Description of drawings
Accompanying drawing 1 is the utility model flame retardant type aluminium alloy conductor interlock type armouring lv power cable structural representation one.
Accompanying drawing 2 is the utility model flame retardant type aluminium alloy conductor interlock type armouring lv power cable structural representation one.
In the above accompanying drawing: 1, justify copper conductor; 11, first aluminum-alloy wire; 12, second aluminum-alloy wire; 2, insulation polyethylene layer; 3, round conductor unit; 41, the first netted glass fiber tape; 42, the second netted glass fiber tape; 5, flame-proof polyvinyl chloride layer; 6, the chain armour of aluminum alloy strip; 7, the gasket for packing that blocks water.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment 1: a kind of flame retardant type aluminium alloy conductor interlock type armouring lv power cable, comprise three round conductor unit of being made up of circle copper conductor 1 and the insulation polyethylene layer 2 that is coated on its outer surface 3, described round copper conductor 1 is made up of first aluminum-alloy wire 11 that is positioned at the center and 6 stranded second aluminum-alloy wires 12 around first aluminum-alloy wire 11;
Wrapped in described three round conductor unit 3 outer surfaces successively by first, second netted glass fiber tape 41,42 that the glass fiber braiding forms;
One flame-proof polyvinyl chloride layer 5 extrudes in the described second netted glass fiber tape outer surface;
The chain armour 6 of one aluminum alloy strip is set in described flame-proof polyvinyl chloride 5 outer surfaces layer by layer;
Be filled with the gasket for packing 7 that blocks water between the described first netted glass fiber tape 41 and the round conductor unit 3.
Above-mentioned first aluminum-alloy wire 11, second aluminum-alloy wire, 12 diameters are 2.6 ~ 2.65mm.
Above-mentioned first, second netted glass fiber tape 41,42 thickness are 0.16 ~ 0.18mm.
The thickness of above-mentioned insulation polyethylene layer 2 is 0.9mm.
The thickness of above-mentioned flame-proof polyvinyl chloride layer 5 is 1 ~ 2mm.
Implementation example of the present utility model: with 3*35mm
2The aluminium alloy cable is example:
(1) conductor operation: the aluminum-alloy wire that with 7 diameters is 2.62mm or 2.64mm or 2.61mm is arranged in the regular stranded mode of 1+6, adopts circle to press the stranded circle that is pressed into of mould and presses aluminium alloy conductor.
(2) insulation operation: extrude the organosilane crosslinked polyethylene insulating barrier of one deck at aluminium alloy conductor surface, the color of three cores is followed successively by Huang, green, red, and the eccentricity control of every core is in 20%.
(3) stranding operation: three colors are placed stranding in order successively for yellow, green, red core, for guaranteeing the core rounding, add the asbestos gasket for packing between core and the core, wrapped two layers of thickness is the alkali-free glass fibre reticular zone of 0.17mm during stranding, and the Duplication control of alkali-free glass fibre reticular zone is 20 ~ 30%.
(4) liner operation: the core outer surface after the alkali-free glass fibre reticular zone is wrapped extrude a layer thickness be the flame-proof polyvinyl chloride of 1.8mm as inner covering, the eccentricity of inner covering is controlled in 25%.
(5) armouring operation: be that the aluminum alloy strip of 0.5mm adopts the processing technology of interlock type to be coated on into the cable core outer surface with two layers of thickness.
Embodiment 2: a kind of high-flexibility interlock type armouring lv power cable, comprise three round conductor unit of being formed by circle copper conductor 1 and the insulation polyethylene layer 2 that is coated on its outer surface 3, described round copper conductor 1 comprises first aluminum-alloy wire 11 that is positioned at the center, 6 second aluminum-alloy wires 12 are stranded to form inner conducting layer, 12 3 Al alloy silk 13 stranded outer conducting layers that form around inner conducting layer around first aluminum-alloy wire 11;
Wrapped in described three round conductor unit 3 outer surfaces successively by first, second netted glass fiber tape 41,42 that the glass fiber braiding forms;
One flame-proof polyvinyl chloride layer 5 extrudes in the described second netted glass fiber tape outer surface;
The chain armour 6 of one aluminum alloy strip is set in described flame-proof polyvinyl chloride 5 outer surfaces layer by layer;
Be filled with the gasket for packing 7 that blocks water between the described first netted glass fiber tape 41 and the round conductor unit 3.
Above-mentioned first aluminum-alloy wire 11, second aluminum-alloy wire, 12 diameters are 2.62mm.
Above-mentioned first, second netted glass fiber tape 41,42 thickness are 0.17mm.
The thickness of above-mentioned insulation polyethylene layer 2 is 0.9mm.
The thickness of above-mentioned flame-proof polyvinyl chloride layer 5 is 1 ~ 2mm.
When adopting above-mentioned novel flame-retardant type aluminium alloy conductor interlock type armouring lv power cable, its have in light weight, lay advantages such as facility, cost are low, price steadiness, overcome copper cost height, price big rise and big fall and the aluminium mechanical performance is low, connect defectives such as instability; Secondly, flexility significantly improves, the bending radius that makes cable only is 7 times of external diameters, improved the tensile strength of cable, can be supported in the building of large span, proportion only is about 1/3rd of copper, can alleviate the heavy burden requirement to construction steel structure greatly, has saved production cost and laid down cost is installed; In addition, outermost layer adopts the chain sheath of superpower alloy, makes cable have certain fire-retardant, block-water performance, has also improved the mechanical performance of cable simultaneously.
Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection range of the present utility model with this.All equivalences of doing according to the utility model spirit essence change or modify, and all should be encompassed within the protection range of the present utility model.
Claims (6)
1. flame retardant type aluminium alloy conductor interlock type armouring lv power cable, it is characterized in that: comprise three by circle copper conductor (1) and be coated on the round conductor unit (3) that the insulation polyethylene layer (2) of its outer surface is formed that described round copper conductor (1) is formed in first aluminum-alloy wire (11), second aluminum-alloy wire (12) all around by first aluminum-alloy wire (11) that is positioned at the center and 6 are stranded;
Wrapped in described three round conductor unit (3) outer surface successively by first, second netted glass fiber tape (41,42) that the glass fiber braiding forms;
One flame-proof polyvinyl chloride layer (5) extrudes in the described second netted glass fiber tape outer surface;
The chain armour of one aluminum alloy strip (6) is set in described flame-proof polyvinyl chloride (5) outer surface layer by layer;
Be filled with the gasket for packing that blocks water (7) between the described first netted glass fiber tape (41) and round conductor unit (3).
2. armouring lv power cable according to claim 1, it is characterized in that: also comprise 12 3 Al alloy silks (13), these 12 3 Al alloy silks (13) are stranded to form outer conducting layer all around in inner conducting layer (8).
3. armouring lv power cable according to claim 1, it is characterized in that: described first aluminum-alloy wire (11), second aluminum-alloy wire (12) diameter are 2.6 ~ 2.65mm.
4. armouring lv power cable according to claim 1, it is characterized in that: described first, second netted glass fiber tape (41,42) thickness is 0.16 ~ 0.18mm.
5. armouring lv power cable according to claim 1, it is characterized in that: the thickness of described insulation polyethylene layer (2) is 0.9mm.
6. armouring lv power cable according to claim 1, it is characterized in that: the thickness of described flame-proof polyvinyl chloride layer (5) is 1 ~ 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320221295 CN203218025U (en) | 2013-04-26 | 2013-04-26 | Flame-retardant aluminum alloy conductor interlocking armored low-voltage power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320221295 CN203218025U (en) | 2013-04-26 | 2013-04-26 | Flame-retardant aluminum alloy conductor interlocking armored low-voltage power cable |
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| Publication Number | Publication Date |
|---|---|
| CN203218025U true CN203218025U (en) | 2013-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320221295 Expired - Fee Related CN203218025U (en) | 2013-04-26 | 2013-04-26 | Flame-retardant aluminum alloy conductor interlocking armored low-voltage power cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104021868A (en) * | 2014-06-23 | 2014-09-03 | 国家电网公司 | Aluminum alloy core interlocking armor photoelectric composite low-voltage power cable and production method thereof |
| CN104123990A (en) * | 2014-08-08 | 2014-10-29 | 江苏亨通电力电缆有限公司 | 6kV-35kV crosslinked polyethylene insulated power cable with aluminum alloy conductors |
-
2013
- 2013-04-26 CN CN 201320221295 patent/CN203218025U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104021868A (en) * | 2014-06-23 | 2014-09-03 | 国家电网公司 | Aluminum alloy core interlocking armor photoelectric composite low-voltage power cable and production method thereof |
| CN104123990A (en) * | 2014-08-08 | 2014-10-29 | 江苏亨通电力电缆有限公司 | 6kV-35kV crosslinked polyethylene insulated power cable with aluminum alloy conductors |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20190426 |