CN205282173U - High tensile strength middling pressure armor aluminum alloy power cable - Google Patents
High tensile strength middling pressure armor aluminum alloy power cable Download PDFInfo
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- CN205282173U CN205282173U CN201520922278.4U CN201520922278U CN205282173U CN 205282173 U CN205282173 U CN 205282173U CN 201520922278 U CN201520922278 U CN 201520922278U CN 205282173 U CN205282173 U CN 205282173U
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- adhesive tape
- aluminium alloy
- elastic adhesive
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Abstract
The utility model relates to a high tensile strength middling pressure armor aluminum alloy power cable, including cable core and sheath, interval distribution has a plurality of cable cores in the sheath, cable core ab intra is to including aluminum alloy conductor, conductor shield, insulation protective layer and external shielding layer outward in proper order, closely knit packing has the elastic rubber strip filling layer between sheath and each cable core, because closely knit packing has the elastic rubber strip filling layer between sheath and each cable core, because of the elastic rubber strip filling layer has elasticity and closely knit packing, whole tensile strength is high behind messenger's cable stranding to further improved the bending property of cable, the cable that just forms is the rounding more.
Description
Technical field
The utility model relates to electric power cable technical field, presses armouring aluminium alloy power cable in particular in a kind of high-tensile.
Background technology
Power cable is the cable for transmitting and distribute electric energy, and power cable is usually used in underground, city electrical network, power house lead line, industrial and mining enterprises are inner powers and transmission line under the seawater of mistake river. In electric power circuit, cable proportion increases just gradually. Power cable is in order to the cable product of transmission and distribution high-power power in the trunk circuit of power system. Wherein midium voltage cable refers to the power cable being applicable to be used as transmission of electric energy between voltage rating 6kV to 35kV on electric line.
Traditional power cable many employings copper conductor is as cable core material, but for reducing energy consumption, cost-saving, replacing copper conductor using aluminium alloy conductor has now become trend as cable core material. Compared to copper core cable, aluminium alloy cable good bending property. But owing to aluminum alloy materials tensile strength is lower than Cu alloy material, so the overall tensile strength of aluminium alloy cable is not as copper core cable, this has placed restrictions on its range of application.
Practical novel content
The purpose of this utility model is for the deficiencies in the prior art, it is provided that press armouring aluminium alloy power cable in the high-tensile of a kind of tensile strength height, applied range.
For solving the problem, the utility model provides following technical scheme:
A kind of high-tensile presses armouring aluminium alloy power cable; comprise cable core and sheath; some cable cores it are intervally distributed with in sheath; described cable core comprises aluminium alloy conductor, conductor shield, insulating protective layer and external shielding layer from the inside to the outside successively; the flexible adhesive tape packing layer of dense packing effect between described sheath and each cable core, described sheath comprises interior sheath, steel-tape armouring and oversheath from inside to outside successively.
Wherein in an embodiment, described elastic adhesive tape packing layer is that described elastic adhesive tape distributes along the bearing of trend of described aluminium alloy conductor by many elastic adhesive tape elastic adhesive tape packing layers that repeatedly combined pressure contracts and formed in strip.
Wherein in an embodiment, the minimum spreading depth of described elastic adhesive tape packing layer between two adjacent cable cores is not less than described insulating protective layer thickness.
Wherein in an embodiment, the minimum spreading depth of described elastic adhesive tape packing layer between cable core and sheath is not less than the 1/5 of cable core radius, and is not more than the 1/3 of cable core radius.
Wherein in an embodiment, described elastic adhesive tape packing layer outer rim is surrounded with non-woven fabrics lapping layer.
Wherein in an embodiment, described external shielding layer comprises insulation screen and copper strip shielding layer.
Wherein in an embodiment, the spacing such as sheath is interior are laid with 4 cable cores.
Compared with prior art, the utility model is due to the flexible adhesive tape packing layer of dense packing effect between sheath and each cable core, there is elasticity and dense packing effect because of elastic adhesive tape packing layer, overall tensile strength height after making cable cabling, and further increase the bending property of cable, and the cable formed is round whole.
Accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram of the present utility model.
Description of reference numerals: 1. aluminium alloy conductor, 2. conductor shield, 3. insulating protective layer, 4. insulation screen, 5. copper strip shielding layer, 6. elastic adhesive tape packing layer, 7. non-woven fabrics lapping layer, 8. in sheath, 9. steel-tape armouring, 10. oversheath.
Embodiment
Below in conjunction with Figure of description and embodiment, embodiment of the present utility model is described in further detail:
Armouring aluminium alloy power cable is pressed with reference in a kind of high-tensile shown in Fig. 1; comprise cable core and sheath; some cable cores it are intervally distributed with in sheath; described cable core comprises aluminium alloy conductor, conductor shield, insulating protective layer and external shielding layer from the inside to the outside successively; the flexible adhesive tape packing layer of dense packing effect between described sheath and each cable core, described sheath comprises interior sheath, steel-tape armouring and oversheath from inside to outside successively.
Due to the flexible adhesive tape packing layer of dense packing effect between sheath and each cable core, there is because of elastic adhesive tape packing layer elasticity and dense packing effect, overall tensile strength height after making cable cabling, and further increase the bending property of cable, and the cable formed is round whole.
Wherein in an embodiment, described elastic adhesive tape packing layer is that described elastic adhesive tape distributes along the bearing of trend of described aluminium alloy conductor by many elastic adhesive tape elastic adhesive tape packing layers that repeatedly combined pressure contracts and formed in strip. That is to say, many elastic adhesive tapes in strip distributes along aluminium alloy conductor bearing of trend and are superimposed with each other, and form described elastic adhesive tape packing layer through mould extruding compressed moulding. Elastic adhesive tape packing layer is repeatedly closed by many elastic adhesive tapes and is formed, and can suitably increase and decrease elastic adhesive tape number, stranded convenience as required, and due to elastic adhesive tape distribution arrangement identical with aluminium alloy conductor bearing of trend, so further increasing overall tensile strength.
Wherein in an embodiment, the minimum spreading depth of described elastic adhesive tape packing layer between two adjacent cable cores is not less than described insulating protective layer thickness. The elastic adhesive tape distributed between two adjacent cable cores like this can provide enough tensile strength, avoid insulating protective layer pull or rupture, it is to increase safety in utilization.
Wherein in an embodiment, the minimum spreading depth of described elastic adhesive tape packing layer between cable core and sheath is not less than the 1/5 of cable core radius, and is not more than the 1/3 of cable core radius. So under pulling force environment, the tensile stress of cable is uniformly distributed, and further increases overall tensile strength.
Wherein in an embodiment, described elastic adhesive tape packing layer outer rim is surrounded with non-woven fabrics lapping layer. So that elastic adhesive tape packing layer good integrity, roundness height.
Wherein in an embodiment, described external shielding layer comprises insulation screen and copper strip shielding layer.
Wherein in an embodiment, the spacing such as sheath is interior are laid with 4 cable cores.
The above, it it is only better embodiment of the present utility model, not technical scope of the present utility model is made any restriction, therefore every any trickle amendment, equivalent variations and modification above embodiment done according to technical spirit of the present utility model, all still belong in the scope of the technical solution of the utility model.
Claims (7)
1. a high-tensile presses armouring aluminium alloy power cable; comprise cable core and sheath; some cable cores it are intervally distributed with in sheath; it is characterized in that: described cable core comprises aluminium alloy conductor, conductor shield, insulating protective layer and external shielding layer from the inside to the outside successively; the flexible adhesive tape packing layer of dense packing effect between described sheath and each cable core, described sheath comprises interior sheath, steel-tape armouring and oversheath from inside to outside successively.
2. high-tensile according to claim 1 presses armouring aluminium alloy power cable, it is characterized in that: described elastic adhesive tape packing layer is that described elastic adhesive tape distributes along the bearing of trend of described aluminium alloy conductor by many elastic adhesive tape elastic adhesive tape packing layers that repeatedly combined pressure contracts and formed in strip.
3. high-tensile according to claim 2 presses armouring aluminium alloy power cable, it is characterised in that: the minimum spreading depth of described elastic adhesive tape packing layer between two adjacent cable cores is not less than described insulating protective layer thickness.
4. high-tensile according to claim 3 presses armouring aluminium alloy power cable, it is characterised in that: the minimum spreading depth of described elastic adhesive tape packing layer between cable core and sheath is not less than the 1/5 of cable core radius, and is not more than the 1/3 of cable core radius.
5. high-tensile according to Claims 1 to 4 any one presses armouring aluminium alloy power cable, it is characterised in that: described elastic adhesive tape packing layer outer rim is surrounded with non-woven fabrics lapping layer.
6. high-tensile according to claim 5 presses armouring aluminium alloy power cable, it is characterised in that: described external shielding layer comprises insulation screen and copper strip shielding layer.
7. high-tensile according to claim 5 presses armouring aluminium alloy power cable, it is characterised in that: the spacing such as sheath is interior are laid with 4 cable cores.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520922278.4U CN205282173U (en) | 2015-11-18 | 2015-11-18 | High tensile strength middling pressure armor aluminum alloy power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520922278.4U CN205282173U (en) | 2015-11-18 | 2015-11-18 | High tensile strength middling pressure armor aluminum alloy power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205282173U true CN205282173U (en) | 2016-06-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520922278.4U Active CN205282173U (en) | 2015-11-18 | 2015-11-18 | High tensile strength middling pressure armor aluminum alloy power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205282173U (en) |
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2015
- 2015-11-18 CN CN201520922278.4U patent/CN205282173U/en active Active
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