CN106710689A - High-current-carrying-capacity armored cable - Google Patents
High-current-carrying-capacity armored cable Download PDFInfo
- Publication number
- CN106710689A CN106710689A CN201510796001.6A CN201510796001A CN106710689A CN 106710689 A CN106710689 A CN 106710689A CN 201510796001 A CN201510796001 A CN 201510796001A CN 106710689 A CN106710689 A CN 106710689A
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- China
- Prior art keywords
- cable
- layer
- armored
- conductor
- carrying capacity
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Abstract
The invention discloses a high-current-carrying-capacity armored cable. The cable comprises at least one cable core and an armored layer. The cable core comprises a conductor and an insulating layer wrapping the conductor. The cable is characterized in that the cable also comprises a heat radiation layer which is arranged at the external surface of the armored layer and used for radiating heat generated by the conductor after electrification to the outside of the cable. The high-current-carrying-capacity armored cable also comprises a heat radiation layer which is arranged at the internal surface of the armored layer or comprises a metal tape wrapping layer which is arranged in the armored layer, such as a copper tape wrapping layer, and the heat radiation layer or the metal tape wrapping layer is used for radiating or conducting the heat generated by the conductor after electrification to the armored layer. The high-current-carrying-capacity armored cable further comprises filling ropes which fill in a hollow area between the cable cores formed by the conductors and the insulating layers and a hollow area between the armored layer and the cable cores, such as a glass fiber rope, a brown paper rope, an inorganic paper rope or a PP rope.
Description
Technical field
The present invention relates to technical field of electric wires and cables, it is more particularly related to a kind of armour of the high current-carrying capacity of easy heat radiation
Dress cable.
Background technology
With the increase of today's society energy demand, hair, with, it is defeated, become, in supply line trnamission capacity requirement it is in urgent need to be improved,
And be the primary factor of raising trnamission capacity using the transmission cable of high current-carrying capacity.Current-carrying capacity of cable refers to conductor can continuously be held
The maximum current carried without causing its equilibrium temperature to exceed setting, is one of core parameter of cable；User and designer can
To select the species and specification size of cable according to load, working condition and current-carrying capacity of cable.In the last few years, interlocking armour
Dress cable is more and more extensive in the application of China because of its superior fire resistance and compressive property, but its arch feature is determined
Determined between armor and cable core, between each cable core with the presence of closed air layer, closed air layer is sent out in electric current by conductor
Thermal insulation function is served when hot.Therefore because lock armo cable heat dispersion is poor, the constant temperature of conductor is raised,
And then the resistivity of conductor continues to increase so that lock armo cable can only hold relative to other shielded versions or unarmored cable
By less electric current, the current-carrying capacity of this cable is significantly reduced.
The content of the invention
To increase the rate of heat dispation after armored cable is powered to improve the current-carrying capacity of cable, the invention provides a kind of easy heat radiation
The armored cable of high current-carrying capacity.The armored cable includes the armor of at least one cable core and all cable cores of parcel, the cable core
Insulating barrier including conductor and coating conductor, it is characterised in that the cable also includes being arranged at dissipating for the armor outer surface
Thermosphere, the heat produced after being used to be powered conductor is through armor Rapid radiating to the Exterior cable.
More preferably, the armored cable of high current-carrying capacity provided by the present invention also includes being arranged at the heat dissipating layer of armor inner surface,
The heat produced after being used to be powered the conductor is quickly dissipated to the armor.
Preferably, the armored cable of high current-carrying capacity provided by the present invention, its heat dissipating layer is the poly- ammonia of black that roller coating technology is made
Carbamate layer.
Preferably, the armored cable of high current-carrying capacity provided by the present invention, the thickness of its black layer of polyurethane is 5-7
Micron.
Because black polyurethanes has good heat absorption width thermal property, set by the armor outer surface in armored cable
The heat dissipating layers such as black layer of polyurethane are put, can produce conductor after energization, conduction is well fast to the heat of armor
In fast eradiation to external environment condition, so as to increase armor to sealing the absorption of internal at it the, heat that conductor is produced up for safekeeping,
Effectively slow down the temperature increase rate after conductor is powered, it is to avoid conductor resistance rate is dramatically increased；More preferably, by electricity
The armor inner surface of cable adds the black polyurethanes heat dissipating layer, more increase armor to seal up for safekeeping it is internal at it,
The absorption of the heat that conductor is produced, thus can more slow down after conductor is powered because temperature raises caused resistivity increase.Relatively
In the lock armo cable without heat dissipating layer, the current-carrying capacity of cable provided by the present invention significantly increases.Micron order thickness it is black
Color polyurethanes roller coating heat absorption width hot property is good, is the armored cable as high current-carrying capacity provided by the present invention
Heat dissipating layer it is preferred.
The armored cable of high current-carrying capacity provided by the present invention, also the metal tape lapping layer including being arranged in armor.
The armored cable of high current-carrying capacity provided by the present invention, its metal tape lapping layer is copper strips lapping layer.
Heat dissipating layer is set by the armor outer surface of armored cable, inside sets metal tape lapping layer, as good in conducted heat
Copper strips lapping layer, can not only tighten up each structure in cable center region, reduce the space shared by air layer, Er Qieyou
It is conductor after energization being produced, be enclosed in the closed air layer inside armor in the good heat conductivility of metallic copper
Heat absorbs well, and is radiated in external environment condition by black polyurethanes heat dissipating layer, so as to effectively slow down lead
Body be powered after temperature increase rate, it is to avoid conductor resistance rate is dramatically increased；Therefore relative to without heat dissipating layer or without metal
Lock armo cable with lapping layer, the current-carrying capacity of cable provided by the present invention significantly increases.
The armored cable of high current-carrying capacity provided by the present invention, also including being filled between the cable core that conductor and insulating barrier are constituted
Hollow area in, the gasket for packing and armor and cable core between in hollow area.
The armored cable of high current-carrying capacity provided by the present invention, its gasket for packing is glass cord, kraft twine, inorganic paper string
With the combination of one or more in PP ropes.
By setting the good gasket for packing of thermal conduction effect between the cable core of armored cable, obstruction heat can be effectively reduced
Space shared by the closed air layer of transmission, increases the conductivity of the heat produced after conductor is powered；According to specific current-carrying capacity
Demand and cost requirement, gasket for packing can be selected from glass cord, kraft twine, inorganic paper string and PP rope.
Using the armored cable of said structure, do not increasing the sectional area of conductor, the base of the existing size design of cable core is not being changed
On plinth, in timely efficiently conduct radiation to the external environment condition of vortex and resistance heat produced after conductor is powered, greatly reduce
Conductor be powered after temperature increase rate, compared to existing armored cable, the current-carrying of armored cable provided by the present invention
Amount is greatly improved.
Brief description of the drawings
Fig. 1 is the cross-sectional view of the preferred embodiment of the armored cable of high current-carrying capacity provided by the present invention；
Wherein label declaration is as follows：
1- cable sheaths
2- heat dissipating layers
3- heat dissipating layers or metal tape lapping layer
4- conductors
5- insulating barriers
6- gasket for packings
Specific embodiment
Presently in connection with accompanying drawing, better embodiment of the invention is discussed in detail.Although description of the invention will be with reference to this preferable reality
Mode is applied to introduce together, but this feature for not representing this invention is only limitted to the implementation method.On the contrary, with reference to embodiment party
It is to cover other selections for being possible to extend based on claim of the invention or changing that formula makees the purpose that invention introduces
Make.
Fig. 1 is the cross-sectional view of present pre-ferred embodiments.The armored cable include armor 1, conductor 4, around
The insulating barrier 5 and gasket for packing 6 of conductor 4, the outer roller of armor 1 scribble the heat dissipating layer 2 of black polyurethanes formation,
The structure sheaf 3 for being arranged at the inner side of armor 1 can be the heat dissipating layer of black polyurethanes roller coat, or gold
Category band lapping layer, such as copper strips lapping layer.Structure sheaf 3 inside armor 1 selects metal tape lapping layer, and especially heat conduction is good
Good copper strips is wrapped, can wrap up more by each structure in cable center region such as conductor 4, insulating barrier 5, gasket for packing 6
For tight, the volume shared by air layer is further reduced, therefore more reduce the grain bin of the heat caused by closed air layer
Effect is accumulated, compared to the heat dissipating layer with selection black polyurethanes roller coat, the structure has more excellent current-carrying high
Amount performance.
Gasket for packing 6 can select the cables such as glass cord, kraft twine, inorganic paper string or PP rope and often use packing material, its
The radiating effect of middle glass cord is the most excellent, but cost is slightly higher compared with other materials.Can be according to armouring electricity when specifically chosen
The actually required current-carrying capacity of cable and cost control consider.
Table 1 gives the current-carrying capacity experimental result control of the different embodiments and existing cable of armored cable provided by the present invention.
Armor outer surface roller coat black polyurethanes heat dissipating layer is can be seen that from the experimental result table of comparisons, in armor
Side sets copper strips lapping layer, and using the armored cable in the space between cable core in glass cord filled cable central area
(numbering 6), with experiment current-carrying capacity the most excellent, (compiles relative to without the improved original armored cable of present inventive concept
Number 1), its current-carrying capacity improves nearly 30%.
The current-carrying capacity experimental result table of comparisons of the armored cable provided by the present invention of table 1 and existing armored cable
Better embodiment of the invention is illustrated above, but the invention is not restricted to this, in model without departing from the spirit
The various variants of interior acquisition are enclosed, belongs to the scope that the present invention is protected.For example, heat dissipating layer may be selected other heat absorptions and radiativity
It is prepared by matter preferably material or technique.And for example, from can between dense packing effect cable conductor, space between cable core and armor
Elastomeric material, it is contemplated that current-carrying capacity lifting higher can be obtained.
Claims (8)
1. the armor of a kind of armored cable of high current-carrying capacity, including at least one cable core and all cable cores of parcel, the cable
Core includes the insulating barrier of conductor and the cladding conductor, it is characterised in that the cable also includes being arranged at outside the armor
The heat dissipating layer on surface, the heat produced after being used to be powered the conductor is through armor Rapid radiating to the Exterior cable.
2. the armored cable of high current-carrying capacity as claimed in claim 1, it is characterised in that the cable also includes being arranged at
The heat dissipating layer of the armor inner surface, the heat produced after being used to be powered the conductor is quickly dissipated to the armor.
3. the armored cable of high current-carrying capacity as claimed in claim 1 or 2, it is characterised in that the heat dissipating layer is roller coat
The black layer of polyurethane that technique is made.
4. the armored cable of high current-carrying capacity as claimed in claim 3, it is characterised in that the black polyurethanes
The thickness of layer is 5-7 microns.
5. the armored cable of high current-carrying capacity as claimed in claim 1, it is characterised in that the cable also includes being arranged at
The metal tape lapping layer of all cable cores of parcel on the inside of armor.
6. the armored cable of high current-carrying capacity as claimed in claim 5, it is characterised in that the metal tape lapping layer is copper
Band lapping layer.
7. the armored cable of the high current-carrying capacity as described in claim 1 or 2 or 5, it is characterised in that the cable is also wrapped
Include be filled between the cable core, the gasket for packing in the hollow area between the armor and cable core.
8. the armored cable of high current-carrying capacity as claimed in claim 7, it is characterised in that the gasket for packing is glass fibre
The combination of one or more in rope, kraft twine, inorganic paper string and PP rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510796001.6A CN106710689A (en) | 2015-11-18 | 2015-11-18 | High-current-carrying-capacity armored cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510796001.6A CN106710689A (en) | 2015-11-18 | 2015-11-18 | High-current-carrying-capacity armored cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106710689A true CN106710689A (en) | 2017-05-24 |
Family
ID=58932379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510796001.6A Pending CN106710689A (en) | 2015-11-18 | 2015-11-18 | High-current-carrying-capacity armored cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106710689A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116543967A (en) * | 2023-04-19 | 2023-08-04 | 江苏通光强能输电线科技有限公司 | Medium-voltage composite fire-resistant cable with temperature measurement control system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4490577A (en) * | 1983-04-14 | 1984-12-25 | Harvey Hubbell Incorporated | Electrical cable for use in extreme environments |
| CN204303432U (en) * | 2014-11-17 | 2015-04-29 | 天津三佳线缆有限公司 | A kind of heat dissipation electric wire cable |
| CN204348402U (en) * | 2014-12-22 | 2015-05-20 | 安徽天彩电缆集团有限公司 | A kind of special cable with self heat dissipation function |
| CN204680454U (en) * | 2015-05-13 | 2015-09-30 | 江西扬帆实业有限公司 | A kind of heat radiation flame retardant type electrical cable |
| CN205158943U (en) * | 2015-11-18 | 2016-04-13 | 通用（天津）铝合金产品有限公司 | Armoured cable of high current -carrying capacity |
-
2015
- 2015-11-18 CN CN201510796001.6A patent/CN106710689A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4490577A (en) * | 1983-04-14 | 1984-12-25 | Harvey Hubbell Incorporated | Electrical cable for use in extreme environments |
| CN204303432U (en) * | 2014-11-17 | 2015-04-29 | 天津三佳线缆有限公司 | A kind of heat dissipation electric wire cable |
| CN204348402U (en) * | 2014-12-22 | 2015-05-20 | 安徽天彩电缆集团有限公司 | A kind of special cable with self heat dissipation function |
| CN204680454U (en) * | 2015-05-13 | 2015-09-30 | 江西扬帆实业有限公司 | A kind of heat radiation flame retardant type electrical cable |
| CN205158943U (en) * | 2015-11-18 | 2016-04-13 | 通用（天津）铝合金产品有限公司 | Armoured cable of high current -carrying capacity |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116543967A (en) * | 2023-04-19 | 2023-08-04 | 江苏通光强能输电线科技有限公司 | Medium-voltage composite fire-resistant cable with temperature measurement control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |