CN205230654U - Fire -retardant aluminum alloy power cable of high temperature protection middling pressure - Google Patents
Fire -retardant aluminum alloy power cable of high temperature protection middling pressure Download PDFInfo
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- CN205230654U CN205230654U CN201521032089.6U CN201521032089U CN205230654U CN 205230654 U CN205230654 U CN 205230654U CN 201521032089 U CN201521032089 U CN 201521032089U CN 205230654 U CN205230654 U CN 205230654U
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- sheath
- cable
- aluminium alloy
- cable core
- high temperature
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Abstract
The utility model relates to a fire -retardant aluminum alloy power cable of high temperature protection 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 the filling layer between sheath and each cable core, be provided with the temperature -sensing line in the sheath, owing to be provided with temperature -sensing line, accessible the temperature -sensing line carries out temperature detection protection, when the load temperature is higher than certain temperature, can provide guard signal or direct supply interruption in order to protect the oading equipment facility through the temperature -sensing line.
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 temperature protection.
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 high temperature resistant property is lower than Cu alloy material, so aluminium alloy cable high temperature resistance is not as copper core cable, it reduce its safety in utilization.
Utility model content
The purpose of this utility model is for the deficiencies in the prior art, provides a kind of safety in utilization good, pressure drag combustion aluminium alloy power cable in the high temperature protection 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 temperature protection; 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; between described sheath and each cable core, dense packing effect has packed layer, is provided with temperature sense line in described sheath.
Wherein in an embodiment, described temperature sense line is arranged at center in sheath, and described cable core uniform intervals is distributed in described temperature sense line week edge.
Wherein in an embodiment, described 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 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 is owing to being provided with temperature sense line; carry out temperature detection protection by described temperature sense line, when load temperature is higher than certain temperature, provides guard signal by temperature sense line or directly cut off the electricity supply to protect load equipment facility.
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, temperature sense line.
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 temperature protection 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; between described sheath and each cable core, dense packing effect has packed layer, is provided with temperature sense line in described sheath.
Owing to being provided with temperature sense line, carry out temperature detection protection by described temperature sense line, when load temperature is higher than certain temperature, provides guard signal by temperature sense line or directly cut off the electricity supply to protect load equipment facility.
Wherein in an embodiment, described temperature sense line is arranged at center in sheath, and described cable core uniform intervals is distributed in described temperature sense line week edge.
Wherein in an embodiment, described 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 temperature protection; 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 packed layer, is provided with temperature sense line in described sheath.
2. pressure drag combustion aluminium alloy power cable in high temperature protection according to claim 1, it is characterized in that: described temperature sense line is arranged at center in sheath, described cable core uniform intervals is distributed in described temperature sense line week edge.
3. pressure drag combustion aluminium alloy power cable in high temperature protection according to claim 2; it is characterized in that: described flame resistant filler 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.
4. pressure drag combustion aluminium alloy power cable in high temperature protection according to claim 3, 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 temperature protection 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 temperature protection 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 temperature protection 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 |
|---|---|---|---|
| CN201521032089.6U CN205230654U (en) | 2015-12-14 | 2015-12-14 | Fire -retardant aluminum alloy power cable of high temperature protection middling pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521032089.6U CN205230654U (en) | 2015-12-14 | 2015-12-14 | Fire -retardant aluminum alloy power cable of high temperature protection middling pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205230654U true CN205230654U (en) | 2016-05-11 |
Family
ID=55905702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521032089.6U Expired - Fee Related CN205230654U (en) | 2015-12-14 | 2015-12-14 | Fire -retardant aluminum alloy power cable of high temperature protection middling pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205230654U (en) |
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2015
- 2015-12-14 CN CN201521032089.6U patent/CN205230654U/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: 20160511 Termination date: 20211214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |