CN205354747U - High temperature protection middling pressure armor aluminum alloy power cable - Google Patents
High temperature protection middling pressure armor aluminum alloy power cable Download PDFInfo
- Publication number
- CN205354747U CN205354747U CN201521032094.7U CN201521032094U CN205354747U CN 205354747 U CN205354747 U CN 205354747U CN 201521032094 U CN201521032094 U CN 201521032094U CN 205354747 U CN205354747 U CN 205354747U
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- China
- Prior art keywords
- sheath
- cable
- aluminium alloy
- high temperature
- cable core
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Abstract
The utility model relates to a high temperature protection 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 filling layer between sheath and each cable core, sheath ab intra outwards includes inner sheath, steel strip armoring and oversheath in proper order, be provided with temperature induction line in the sheath, owing to be provided with temperature induction line, accessible temperature induction 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 temperature induction line.
Description
Technical field
This utility model relates to electric power cable technical field, particularly to pressure armouring 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, electric station lead line, industrial and mining establishment's in-line power and crosses power transmission line under the sea water of river.In power circuit, cable proportion is just gradually increased.Power cable is in order to transmit and to distribute the cable product of high-power power in the basic routing line of power system.Wherein midium voltage cable refers to suitable in the power cable being used as conveying electric energy on electric line between rated voltage 6kv to 35KV.
Traditional power cable many employings copper conductor is as cable core material, but for reducing energy consumption, saves cost, and replace 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 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 in that for the deficiencies in the prior art, it is provided that a kind of safety in utilization is good, presses armouring aluminium alloy power cable in the high temperature protection of applied range.
For solving the problems referred to above, this utility model provides techniques below scheme:
Pressure armouring aluminium alloy power cable in a kind of high temperature protection; including cable core and sheath; some cable cores it are intervally distributed with in sheath; described cable core includes aluminium alloy conductor, conductor shield, insulating protective layer and external shielding layer from the inside to the outside successively; between described sheath and each cable core, dense packing effect has packed layer; described sheath includes inner sheath, steel-tape armouring and oversheath from inside to outside successively, is provided with temperature sense line in described sheath.
Wherein in an embodiment, described temperature sense line is arranged in sheath center, and described cable core uniform intervals is distributed in edge of described temperature sense line week.
Wherein in an embodiment, described packed layer is coincided by a plurality of elastic adhesive tape in strip to compress the elastic adhesive tape packed layer formed, and described elastic adhesive tape is distributed along the bearing of trend of described aluminium alloy conductor.
Wherein in an embodiment, the described elastic adhesive tape packed layer minimum spreading depth 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 packed layer outer rim is surrounded with non-woven fabrics lapping layer.
Wherein in an embodiment, described external shielding layer includes insulation screen and copper strip shielding layer.
Wherein in an embodiment, in sheath, equidistantly it is laid with 4 cable cores.
Compared with prior art; this utility model is owing to being provided with temperature sense line; temperature detection protection can be carried out by described temperature sense line, when load temperature is higher than certain temperature, protection signal can be provided 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. elastic adhesive tape packed layer, 7. non-woven fabrics lapping layer, 8. inner sheath, 9. steel-tape armouring, 10. oversheath, 11 temperature sense lines.
Detailed description of the invention
Below in conjunction with Figure of description and embodiment, detailed description of the invention of the present utility model is described in further detail:
With reference to pressure armouring aluminium alloy power cable in a kind of high temperature protection shown in Fig. 1; including cable core and sheath; some cable cores it are intervally distributed with in sheath; described cable core includes aluminium alloy conductor, conductor shield, insulating protective layer and external shielding layer from the inside to the outside successively; between described sheath and each cable core, dense packing effect has packed layer; described sheath includes inner sheath, steel-tape armouring and oversheath from inside to outside successively, is provided with temperature sense line in described sheath.
Owing to being provided with temperature sense line, temperature detection protection can be carried out by described temperature sense line, when load temperature is higher than certain temperature, protection signal can be provided 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 in sheath center, and described cable core uniform intervals is distributed in edge of described temperature sense line week.
Wherein in an embodiment, described packed layer is coincided by a plurality of elastic adhesive tape in strip to compress the elastic adhesive tape packed layer formed, and described elastic adhesive tape is distributed along the bearing of trend of described aluminium alloy conductor.I other words, a plurality of elastic adhesive tape in strip is distributed along aluminium alloy conductor bearing of trend and is superimposed with each other, and extrudes compression forming through mould and forms described elastic adhesive tape packed layer.Elastic adhesive tape packed layer is coincided by a plurality of elastic adhesive tape and is formed, and can suitably increase and decrease elastic gum rule number as required, stranded convenience, and owing to elastic adhesive tape distribution arrangement is identical with aluminium alloy conductor bearing of trend, so further increasing overall tensile strength.
Wherein in an embodiment, the described elastic adhesive tape packed layer minimum spreading depth between two adjacent cable cores is not less than described insulation protection layer thickness.The elastic adhesive tape being distributed between such two adjacent cable cores is provided that enough tensile strength, it is to avoid insulating protective layer is pulled or ruptures, and improves safety in utilization.
Wherein in an embodiment, the described elastic adhesive tape packed layer minimum spreading depth 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 tension of cable is uniformly distributed, and further increases overall tensile strength.
Wherein in an embodiment, described elastic adhesive tape packed layer outer rim is surrounded with non-woven fabrics lapping layer.So that elastic adhesive tape packed layer good integrity, roundness is high.
Wherein in an embodiment, described external shielding layer includes insulation screen and copper strip shielding layer.
Wherein in an embodiment, in sheath, equidistantly it is laid with 4 cable cores.
The above, it it is only preferred 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 example made according to technical spirit of the present utility model, all still fall within the scope of the technical solution of the utility model.
Claims (7)
1. a high temperature protection is pressed armouring aluminium alloy power cable; including cable core and sheath; some cable cores it are intervally distributed with in sheath; it is characterized in that: described cable core includes aluminium alloy conductor, conductor shield, insulating protective layer and external shielding layer from the inside to the outside successively; between described sheath and each cable core, dense packing effect has packed layer; described sheath includes inner sheath, steel-tape armouring and oversheath from inside to outside successively, is provided with temperature sense line in described sheath.
2. high temperature protection according to claim 1 is pressed armouring aluminium alloy power cable, it is characterised in that: described temperature sense line is arranged in sheath center, and described cable core uniform intervals is distributed in edge of described temperature sense line week.
3. high temperature protection according to claim 2 is pressed armouring aluminium alloy power cable; it is characterized in that: described packed layer is coincided by a plurality of elastic adhesive tape in strip to compress the elastic adhesive tape packed layer formed, and described elastic adhesive tape is distributed along the bearing of trend of described aluminium alloy conductive core material.
4. high temperature protection according to claim 3 is pressed armouring aluminium alloy power cable, it is characterised in that: the described elastic adhesive tape packed layer minimum spreading depth 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. the high temperature protection according to claim 3～4 any one is pressed armouring aluminium alloy power cable, it is characterised in that: described elastic adhesive tape packed layer outer rim is surrounded with non-woven fabrics lapping layer.
6. high temperature protection according to claim 5 is pressed armouring aluminium alloy power cable, it is characterised in that: described external shielding layer includes insulation screen and copper strip shielding layer.
7. high temperature protection according to claim 5 is pressed armouring aluminium alloy power cable, it is characterised in that: equidistantly it is laid with 4 cable cores in sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521032094.7U CN205354747U (en) | 2015-12-14 | 2015-12-14 | High temperature protection middling pressure armor aluminum alloy power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521032094.7U CN205354747U (en) | 2015-12-14 | 2015-12-14 | High temperature protection middling pressure armor aluminum alloy power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205354747U true CN205354747U (en) | 2016-06-29 |
Family
ID=56153428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521032094.7U Expired - Fee Related CN205354747U (en) | 2015-12-14 | 2015-12-14 | High temperature protection middling pressure armor aluminum alloy power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205354747U (en) |
-
2015
- 2015-12-14 CN CN201521032094.7U patent/CN205354747U/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: 20160629 Termination date: 20211214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |