CN205564315U - Aluminum alloy core presorts a power cable for high -rise building - Google Patents
Aluminum alloy core presorts a power cable for high -rise building Download PDFInfo
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- CN205564315U CN205564315U CN201620341146.7U CN201620341146U CN205564315U CN 205564315 U CN205564315 U CN 205564315U CN 201620341146 U CN201620341146 U CN 201620341146U CN 205564315 U CN205564315 U CN 205564315U
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Abstract
The utility model provides an aluminum alloy core presorts a power cable for high -rise building, includes main cable, many branch cable and branch's sheath, among the main cable, the outer from interior to exterior of circular conductive layer that the transposition of aluminum alloy molded lines monofilament formed has wrapped up low smoke and zero halogen type radiation cross -linking polyolefin insulation layer, high strength polyester area band layer and low smoke and zero halogen type radiation cross -linking polyolefin trunk oversheath layer in proper order, among the branch cable, the outer from interior to exterior of the circular conductive layer of branch that the transposition of aluminum alloy molded lines monofilament formed has wrapped up low smoke and zero halogen type radiation cross -linking polyolefin branch insulating layer, high strength polyester area branch band layer and low smoke and zero halogen type radiation cross -linking polyolefin branch oversheath layer in proper order. The utility model provides an aluminum alloy core presorts a power cable for high -rise building, can solve that product and installation are with high costs, the feature of environmental protection can and the relatively poor problem of mechanical properties, the cost has been practiced thrift to the sexual valence relative altitude, the feature of environmental protection can go with mechanical properties, moves safe and reliable.
Description
Technical field
This utility model relates to skyscraper power cable field, especially a kind of pre-branch power cable of skyscraper aluminium alloy core.
Background technology
Current pre-branch power cable does not also have national standard, most enterprises continues to use machinery industry standard and building trade standard develops the pre-branch power cable of production and sales, its product main body unit is made up of main cable, branch cable and branch's connector, wherein main cable and branch cable structure from inside to outside is followed successively by 1) copper conductor, 2) polyvinyl chloride insulation, 3) lapping layer, 4) pvc sheath；Branch's connector structure from inside to outside is followed successively by 5) copper conductor crimp head, 6) tape insulation, 7) plastic protective layer.
The above-mentioned construction of cable and material are simple, and comprehensive serviceability is poor, there is following defect:
1, during carrying same load, copper core cable cost is high.
2, during carrying same load, copper core cable weight is big, needs supporting big specification to hang and determines device, and mounting and installation cost is high.
3, cable insulation and sheath are pvc material, produce a large amount of toxic gas and black smoke when burning.
4, branch's connector protective layer is common injection molding material, and mechanical performance is poor.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of pre-branch power cable of skyscraper aluminium alloy core, can solve that product and mounting and installation cost be high, environmental-protecting performance and the poor problem of mechanical performance, cost performance is high, save cost, environmental-protecting performance and good mechanical property, safe and reliable to operation.
For solving above-mentioned technical problem, this utility model be the technical scheme is that a kind of pre-branch power cable of skyscraper aluminium alloy core, including main cable, many branch cables and branch's sheath,
In main cable, outside the round conductor layer of the stranded formation of aluminium alloy molded line monofilament, it is enclosed with low smoke halogen-free irradiation crosslinked polyolefin insulating layer, high-strength polyester band belting layer and low smoke halogen-free cross-linking radiation polyolefin trunk external sheath layer the most successively；
In branch cable, outside the branching circular conductor layer of the stranded formation of aluminium alloy molded line monofilament, it is enclosed with low smoke halogen-free cross-linking radiation polyolefin branch insulating barrier, high-strength polyester band branch's belting layer and low smoke halogen-free cross-linking radiation polyolefin branch external sheath layer the most successively；
Main branch cable conductor crimping head it is provided with in branch's sheath, divest restrictive coating, insulating barrier and belting layer respectively and expose the round conductor layer of conductor layer and branching circular conductor layer is crimped together by main branch cable conductor crimping head, be surrounded with branch outside main branch cable conductor crimping head and connect insulating barrier.
Main branch cable conductor crimping head is c-type pipe.
Branch connects the insulating barrier that insulating barrier is the wrapped formation of two-layer belt body, and internal layer is to use the overlapping wrapped inner insulating layer of mica tape, and outer layer is to use the overlapping wrapped external insulation layer of ethylene propylene rubber insulated band, and the lapping direction of inner insulating layer and external insulation layer is contrary.
Branch's sheath is the sheath using thermoplastic elastomer (TPE) TPE injection mo(u)lding to be formed.
The pre-branch power cable of skyscraper aluminium alloy core that this utility model provides, the conductor of main cable and branch cable uses the aluminium alloy stranded circular configuration of molded line monofilament, and surface flatness is high, not only low cost, and weight is little, making product and mounting and installation low cost, cost performance is high；Low smoke halogen-free cross-linking radiation polyolefine material makes cable not produce toxic gas and black smoke, good environmental protection when burning；Branch's sheath that high resiliency TPE material injection mo(u)lding is formed, makes protective layer have the advantages such as high resiliency, high intensity, good mechanical property；Through detecting cable, result shows that cable properties all meets design requirement.Compared with common pre-branch power cable, novel structure, material is superior, and comprehensive serviceability is higher.This cable has the feature of environmental protection of the economy of high performance-price ratio, low smoke and zero halogen.Cable can lay in the electric well being used in skyscraper, lightweight, good mechanical property, it is simple to laying installation, and runs safe and reliable.
Accompanying drawing explanation
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings:
Fig. 1 is this utility model structural representation.
Detailed description of the invention
In Fig. 1, a kind of pre-branch power cable of skyscraper aluminium alloy core, including main cable 8, many branch cables 9 and branch's sheath 7, it is characterised in that:
In main cable 8, outside the round conductor layer 8-1 of the stranded formation of aluminium alloy molded line monofilament, it is enclosed with low smoke halogen-free irradiation crosslinked polyolefin insulating layer 8-2, high-strength polyester band belting layer 8-3 and low smoke halogen-free cross-linking radiation polyolefin trunk external sheath layer 8-4 the most successively；
In branch cable 9, the branching circular conductor layer of the stranded formation of aluminium alloy molded line monofilament 1 is outer is enclosed with low smoke halogen-free cross-linking radiation polyolefin branch insulating barrier 2, high-strength polyester band branch belting layer 3 and low smoke halogen-free cross-linking radiation polyolefin branch external sheath layer 4 the most successively；
Main branch cable conductor crimping head 5 it is provided with in branch's sheath 7, divest restrictive coating, insulating barrier and belting layer respectively and expose the round conductor layer 8-1 of conductor layer and branching circular conductor layer 1 is crimped together by main branch cable conductor crimping head 5, be surrounded with branch outside main branch cable conductor crimping head 5 and connect insulating barrier 6.
Main branch cable conductor crimping head 5 is c-type pipe.
Branch connects the insulating barrier that insulating barrier 6 is the wrapped formation of two-layer belt body, and internal layer is to use the overlapping wrapped inner insulating layer of mica tape, and outer layer is to use the overlapping wrapped external insulation layer of ethylene propylene rubber insulated band, and the lapping direction of inner insulating layer and external insulation layer is contrary.
Branch's sheath 7 is the sheath using thermoplastic elastomer (TPE) TPE injection mo(u)lding to be formed.
Manufacturing process of the present utility model is as follows:
1, the conductor strand system of main cable 8 and branch cable 9
Conductor uses and meets the aluminium alloy conductor that GB/T3956-2008 requires.First, use continuous casting and rolling production line to manufacture aluminium alloy rod, drawn the aluminium alloy molded line monofilament of required specification by the big wire drawing machine of aluminium alloy.Secondly, use many aluminium alloy molded line monofilament to carry out stranded, carry out layer-stranding by nanometer bunch mould, it is ensured that the close structure of conductor is stablized and smooth surface.Again, the aluminium alloy conductor after using aluminium alloy aging furnace strand carries out Ageing Treatment, it is ensured that the mechanical performance of aluminium alloy conductor and electrical property.
2, main cable 8 and the insulating exruded and crosslinking of branch cable 9
Insulating barrier uses low smoke halogen-free irradiation crosslinked polyolefin insulating material.Insulating barrier should be extruded on conductor equably, and extrusion insulating surface should be smooth, without wedge angle, granule, burn, the phenomenon such as scratch, average thickness should be not less than nominal value, and thinnest point thickness should be not less than the 90%-0.1nn of nominal thickness, and the degree of eccentricity is not more than 10%.
By the insulated wire cores of extrusion with ∞ shape be wrapped in cross-linking radiation production line two cylinders on carry out ultraviolet light irradiation cross-linking, and according to line footpath size, core is wound around on cylinder multi-turn.
3, main cable 8 and branch cable 9 stranding are wrapped
During single-core cable, the outer wrapped thickness of direct-on-line core is the high-strength polyester band of 0.5mm, and by insulated wire cores with red, yellow, green, blue, black sequential arrangement twisted synthesizing cable during multicore cable, the outer wrapped thickness of the core after stranding is the high-strength polyester band of 0.5mm.Duplication is not less than 20%, and must not there be the phenomenons such as fold, lace, bottom pour ladle on surface.
4, main cable 8 and the extrusion of branch cable 9 oversheath and crosslinking
Oversheath uses low smoke halogen-free irradiation crosslinked polyolefin insulating material.Oversheath should be extruded on core equably, extrusion jacket surface should be smooth, without wedge angle, granule, burn, the phenomenon such as scratch, its nominal thickness is 0.035 times of+1mm of diameter under sheath, average thickness should be not less than nominal value, thinnest point thickness should be not less than the 85%-0.1mm of nominal thickness, and the degree of eccentricity is not more than 15%.
By the sheath core of extrusion with ∞ shape be wrapped in cross-linking radiation production line two cylinders on carry out ultraviolet light irradiation cross-linking, and according to line footpath size, core is wound around on cylinder multi-turn.
5, main branch cable conductor crimping head 5 crimps
Main cable 8 and corresponding branch cable 9 being divested outer protective sleeve and insulation respectively, exposes conductor, with c-type pipe by main branch cable conductor crimping together, all branch cables on each main cable are towards unanimously.Depending on exposing the width of conductor length foundation c-type pipe, depending on c-type pipe model specification is according to main cable sectional area.
6, branch connects insulation
Branch connects insulation and uses layering around packet mode, and ectonexine lapping direction is contrary, and internal layer uses mica tape overlap wrapped, and wrapped overlap is 50%, and outer layer uses ethylene propylene rubber insulated band overlap wrapped, and wrapped Duplication is 30%.Must not there be the phenomenons such as fold, lace, bottom pour ladle on surface.
7, branch's sheath 7 injection mo(u)lding
High resiliency TPE material selected by branch's sheath 7, selects suitable injection mold according to cable diameter size, and by vertical injection machine high-pressure injection molding, surface should be smooth, without wedge angle, granule, burn, the phenomenon such as scratch.
Claims (4)
1. the pre-branch power cable of skyscraper aluminium alloy core, including main cable (8), many branch cables (9) and branch's sheath (7), it is characterised in that:
In main cable (8), the round conductor layer (8-1) of the stranded formation of aluminium alloy molded line monofilament is enclosed with low smoke halogen-free irradiation crosslinked polyolefin insulating layer (8-2), high-strength polyester band belting layer (8-3) and low smoke halogen-free cross-linking radiation polyolefin trunk external sheath layer (8-4) the most successively；
In branch cable (9), branching circular conductor layer (1) of the stranded formation of aluminium alloy molded line monofilament is enclosed with low smoke halogen-free cross-linking radiation polyolefin branch's insulating barrier (2), high-strength polyester band branch's belting layer (3) and low smoke halogen-free cross-linking radiation polyolefin branch's external sheath layer (4) the most successively；
Main branch cable conductor crimping head (5) it is provided with in branch's sheath (7), divest restrictive coating, insulating barrier and belting layer respectively and expose the round conductor layer (8-1) of conductor layer and branching circular conductor layer (1) is crimped together by main branch cable conductor crimping head (5), be surrounded with branch outside main branch cable conductor crimping head (5) and connect insulating barrier (6).
The pre-branch power cable of skyscraper aluminium alloy core the most according to claim 1, it is characterised in that: main branch cable conductor crimping head (5) is c-type pipe.
The pre-branch power cable of skyscraper aluminium alloy core the most according to claim 1, it is characterized in that: branch connects the insulating barrier that insulating barrier (6) is the wrapped formation of two-layer belt body, internal layer is to use the overlapping wrapped inner insulating layer of mica tape, outer layer is to use the overlapping wrapped external insulation layer of ethylene propylene rubber insulated band, and the lapping direction of inner insulating layer and external insulation layer is contrary.
The pre-branch power cable of skyscraper aluminium alloy core the most according to claim 1, it is characterised in that: branch's sheath (7) is the sheath using thermoplastic elastomer (TPE) TPE injection mo(u)lding to be formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620341146.7U CN205564315U (en) | 2016-04-21 | 2016-04-21 | Aluminum alloy core presorts a power cable for high -rise building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620341146.7U CN205564315U (en) | 2016-04-21 | 2016-04-21 | Aluminum alloy core presorts a power cable for high -rise building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205564315U true CN205564315U (en) | 2016-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620341146.7U Expired - Fee Related CN205564315U (en) | 2016-04-21 | 2016-04-21 | Aluminum alloy core presorts a power cable for high -rise building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205564315U (en) |
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2016
- 2016-04-21 CN CN201620341146.7U patent/CN205564315U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 Termination date: 20200421 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |