CN205104289U - Fire -retardant aluminum alloy power cable of high tensile strength middling pressure - Google Patents
Fire -retardant aluminum alloy power cable of high tensile strength middling pressure Download PDFInfo
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- CN205104289U CN205104289U CN201520922464.8U CN201520922464U CN205104289U CN 205104289 U CN205104289 U CN 205104289U CN 201520922464 U CN201520922464 U CN 201520922464U CN 205104289 U CN205104289 U CN 205104289U
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- cable
- adhesive tape
- fire retardant
- elastic adhesive
- aluminium alloy
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Abstract
The utility model relates to a fire -retardant aluminum alloy power cable of high tensile strength middling pressure, 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 fire -retardant elastic rubber strip filling layer between sheath and each cable core, because closely knit packing has fire -retardant elastic rubber strip filling layer between sheath and each cable core, because of fire -retardant 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, particularly pressure drag combustion aluminium alloy power cable 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 Urban Underground electrical network, power station lead line, industrial and mining enterprises' in-line power and power transmission line under crossing river seawater.In power circuit, cable proportion increases just gradually.Power cable is in order to transmission and the cable product distributing high-power power in the basic routing line of electric power system.Wherein midium voltage cable refers to the power cable being applicable between rated voltage 6kV to 35kV, electric line is used as transmission of electric energy.
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 now becomes trend as cable core material.Compared to copper core cable, aluminium alloy cable good bending property.But because 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.
Utility model content
The purpose of this utility model is for the deficiencies in the prior art, provides that a kind of tensile strength is high, pressure drag combustion aluminium alloy power cable in the high-tensile of applied range.
For solving the problem, the utility model provides following technical scheme:
Pressure drag combustion aluminium alloy power cable in a kind of high-tensile; comprise cable core and sheath; some cable cores are intervally distributed with in sheath; described cable core comprises aluminium alloy conductor, conductor shield, insulating protective layer and outer shielding layer from the inside to the outside successively, and between described sheath and each cable core, dense packing effect has fire retardant elastic adhesive tape packed layer.
Wherein in an embodiment, described fire retardant elastic adhesive tape packed layer is to be coincided the fire retardant elastic adhesive tape packed layer compressing and formed by many fire retardant elastic adhesive tape in strip, and described fire retardant elastic adhesive tape distributes along the bearing of trend of described aluminium alloy conductor.
Wherein in an embodiment, the minimum spreading depth of described fire retardant elastic adhesive tape packed layer between two adjacent cable cores is not less than described insulation protection layer thickness.
Wherein in an embodiment, the minimum spreading depth of described fire retardant elastic adhesive tape packed layer between cable core and sheath is not less than 1/5 of cable core radius, and is not more than 1/3 of cable core radius.
Wherein in an embodiment, described fire retardant elastic adhesive tape packed layer outer rim is surrounded with glass fibre lapping layer.
Wherein in an embodiment, described outer shielding layer comprises insulation screen and copper strip shielding layer.
Wherein in an embodiment, in sheath, be equidistantly laid with 4 cable cores.
Compared with prior art, the utility model has fire retardant elastic adhesive tape packed layer due to dense packing effect between sheath and each cable core, because fire retardant elastic adhesive tape packed layer has elasticity and dense packing effect, after making cable cabling, overall tensile strength is high, and further increase the bending property of cable, and the cable formed more rounding.
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. fire retardant elastic adhesive tape packed layer, 7. glass fibre lapping layer, 8. sheath.
Embodiment
Below in conjunction with Figure of description and embodiment, embodiment of the present utility model is described in further detail:
With reference to pressure drag combustion aluminium alloy power cable in a kind of high-tensile shown in Fig. 1; comprise cable core and sheath; some cable cores are intervally distributed with in sheath; described cable core comprises aluminium alloy conductor, conductor shield, insulating protective layer and outer shielding layer from the inside to the outside successively, and between described sheath and each cable core, dense packing effect has fire retardant elastic adhesive tape packed layer.
Because dense packing effect between sheath and each cable core has fire retardant elastic adhesive tape packed layer, because fire retardant elastic adhesive tape packed layer has elasticity and dense packing effect, after making cable cabling, overall tensile strength is high, and further increases the bending property of cable, and the cable formed more rounding.
Wherein in an embodiment, described fire retardant elastic adhesive tape packed layer is to be coincided the fire retardant elastic adhesive tape packed layer compressing and formed by many fire retardant elastic adhesive tape in strip, and described fire retardant elastic adhesive tape distributes along the bearing of trend of described aluminium alloy conductor.That is to say, many fire retardant elastic adhesive tape in strip distribute along aluminium alloy conductor bearing of trend and are superimposed with each other, and form described fire retardant elastic adhesive tape packed layer through mould extruding compression forming.Fire retardant elastic adhesive tape packed layer is coincided by many fire retardant elastic adhesive tape and is formed, can suitably increase and decrease fire retardant elastic adhesive tape number as required, stranded convenience, and due to fire retardant elastic adhesive tape distribution arrangement identical with aluminium alloy conductor bearing of trend, so further increase overall tensile strength.Wherein, described fire retardant elastic adhesive tape can be the insulating elastic material preparation that fire-retardant TPE etc. is usually used in cable-flame retardant.
Wherein in an embodiment, the minimum spreading depth of described fire retardant elastic adhesive tape packed layer between two adjacent cable cores is not less than described insulation protection layer thickness.The fire retardant elastic adhesive tape distributed between two adjacent cable cores like this can provide enough tensile strength, avoids insulating protective layer to pull or ruptures, improve safety in utilization.
Wherein in an embodiment, the minimum spreading depth of described fire retardant elastic adhesive tape packed layer between cable core and sheath is not less than 1/5 of cable core radius, and is not more than 1/3 of cable core radius.So under pulling force environment, the tension stress of cable is uniformly distributed, and further increases overall tensile strength.
Wherein in an embodiment, described fire retardant elastic adhesive tape packed layer outer rim is surrounded with glass fibre lapping layer.To make fire retardant elastic adhesive tape packed layer good integrity, roundness is high.Described glass fibre lapping layer can form for glass fiber tape is wrapped, and glass fiber tape fire resistance is good, further increases fire resistance.
Wherein in an embodiment, described outer shielding layer comprises insulation screen and copper strip shielding layer.
Wherein in an embodiment, in sheath, be equidistantly laid with 4 cable cores.
The above, it is only preferred embodiment of the present utility model, not any restriction is made to technical scope of the present utility model, therefore every above embodiment is done according to technical spirit of the present utility model any trickle amendment, equivalent variations and modification, all still belong in the scope of the technical solution of the utility model.
Claims (7)
1. pressure drag combustion aluminium alloy power cable in a high-tensile; comprise cable core and sheath; some cable cores are intervally distributed with in sheath; it is characterized in that: described cable core comprises aluminium alloy conductor, conductor shield, insulating protective layer and outer shielding layer from the inside to the outside successively, between described sheath and each cable core, dense packing effect has fire retardant elastic adhesive tape packed layer.
2. pressure drag combustion aluminium alloy power cable in high-tensile according to claim 1, it is characterized in that: described fire retardant elastic adhesive tape packed layer is to be coincided the fire retardant elastic adhesive tape packed layer compressing and formed by many fire retardant elastic adhesive tape in strip, and described fire retardant elastic adhesive tape distributes along the bearing of trend of described aluminium alloy conductor.
3. pressure drag combustion aluminium alloy power cable in high-tensile according to claim 2, is characterized in that: the minimum spreading depth of described fire retardant elastic adhesive tape packed layer between two adjacent cable cores is not less than described insulation protection layer thickness.
4. pressure drag combustion aluminium alloy power cable in high-tensile according to claim 3, it is characterized in that: the minimum spreading depth of described fire retardant elastic adhesive tape packed layer between cable core and sheath is not less than 1/5 of cable core radius, and is not more than 1/3 of cable core radius.
5. in the high-tensile according to claim 1 ~ 4 any one, pressure drag combustion aluminium alloy power cable, is characterized in that: described fire retardant elastic adhesive tape packed layer outer rim is surrounded with glass fibre lapping layer.
6. pressure drag combustion aluminium alloy power cable in high-tensile according to claim 5, is characterized in that: described outer shielding layer comprises insulation screen and copper strip shielding layer.
7. pressure drag combustion aluminium alloy power cable in high-tensile according to claim 5, is characterized in that: be equidistantly laid with 4 cable cores in sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520922464.8U CN205104289U (en) | 2015-11-18 | 2015-11-18 | Fire -retardant aluminum alloy power cable of high tensile strength middling pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520922464.8U CN205104289U (en) | 2015-11-18 | 2015-11-18 | Fire -retardant aluminum alloy power cable of high tensile strength middling pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205104289U true CN205104289U (en) | 2016-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520922464.8U Active CN205104289U (en) | 2015-11-18 | 2015-11-18 | Fire -retardant aluminum alloy power cable of high tensile strength middling pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205104289U (en) |
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2015
- 2015-11-18 CN CN201520922464.8U patent/CN205104289U/en active Active
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