CN205104273U - Fire -retardant aluminum alloy power cable of high tensile strength low pressure - Google Patents
Fire -retardant aluminum alloy power cable of high tensile strength low pressure Download PDFInfo
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- CN205104273U CN205104273U CN201520922279.9U CN201520922279U CN205104273U CN 205104273 U CN205104273 U CN 205104273U CN 201520922279 U CN201520922279 U CN 201520922279U CN 205104273 U CN205104273 U CN 205104273U
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- cable
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- adhesive tape
- aluminium alloy
- elastic adhesive
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Abstract
The utility model relates to a fire -retardant aluminum alloy power cable of high tensile strength low pressure, including cable core and sheath, interval distribution has a plurality of cable cores in the sheath, the cable core includes the electrically conductive core of aluminum alloy and winds the insulation protective layer of package in the electrically conductive core of aluminum alloy, 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 the fire-retardant aluminium alloy power cable of a kind of high-tensile low pressure.
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 low-voltage cable refers to and is applicable to the power cable exchanging and 50Hz, rated voltage 6kV and following electric line are used as transmission of electric energy that is fixedly laid in.
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, the fire-retardant aluminium alloy power cable of high-tensile low pressure of applied range.
For solving the problem, the utility model provides following technical scheme:
The fire-retardant aluminium alloy power cable of a kind of high-tensile low pressure; comprise cable core and sheath; some cable cores are intervally distributed with in sheath; described cable core comprises aluminium alloy conductive core material and wrapped in the insulating protective layer of aluminium alloy conductive core material, 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 conductive core material.
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 1/4 of cable core radius, and is not more than 1/2 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, 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 conductive core material, 2. insulating protective layer, 3. fire retardant elastic adhesive tape packed layer, 4. glass fibre lapping layer, 5. 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 the fire-retardant aluminium alloy power cable of a kind of high-tensile low pressure shown in Fig. 1; comprise cable core and sheath; some cable cores are intervally distributed with in sheath; described cable core comprises aluminium alloy conductive core material and wrapped in the insulating protective layer of aluminium alloy conductive core material, 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 conductive core material.That is to say, many fire retardant elastic adhesive tape in strip distribute along aluminium alloy conductive core material 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 conductive core material 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 1/4 of cable core radius, and is not more than 1/2 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, 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 (6)
1. the fire-retardant aluminium alloy power cable of high-tensile low pressure; 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 conductive core material and wrapped in the insulating protective layer of aluminium alloy conductive core material, and between described sheath and each cable core, dense packing effect has fire retardant elastic adhesive tape packed layer.
2. the fire-retardant aluminium alloy power cable of high-tensile low pressure 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 conductive core material.
3. the fire-retardant aluminium alloy power cable of high-tensile low pressure 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. the fire-retardant aluminium alloy power cable of high-tensile low pressure 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 1/4 of cable core radius, and is not more than 1/2 of cable core radius.
5. the fire-retardant aluminium alloy power cable of high-tensile low pressure according to claim 1 ~ 4 any one, is characterized in that: described fire retardant elastic adhesive tape packed layer outer rim is surrounded with glass fibre lapping layer.
6. the fire-retardant aluminium alloy power cable of high-tensile low pressure 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 |
|---|---|---|---|
| CN201520922279.9U CN205104273U (en) | 2015-11-18 | 2015-11-18 | Fire -retardant aluminum alloy power cable of high tensile strength low pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520922279.9U CN205104273U (en) | 2015-11-18 | 2015-11-18 | Fire -retardant aluminum alloy power cable of high tensile strength low pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205104273U true CN205104273U (en) | 2016-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520922279.9U Active CN205104273U (en) | 2015-11-18 | 2015-11-18 | Fire -retardant aluminum alloy power cable of high tensile strength low pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205104273U (en) |
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2015
- 2015-11-18 CN CN201520922279.9U patent/CN205104273U/en active Active
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