CN102280185A - Cold-resistant cable - Google Patents
Cold-resistant cable Download PDFInfo
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- CN102280185A CN102280185A CN2011102340714A CN201110234071A CN102280185A CN 102280185 A CN102280185 A CN 102280185A CN 2011102340714 A CN2011102340714 A CN 2011102340714A CN 201110234071 A CN201110234071 A CN 201110234071A CN 102280185 A CN102280185 A CN 102280185A
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- cable
- sheath
- alloy silk
- isolation layer
- cold
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The invention discloses a cold-resistant cable, comprising a cable core (2) arranged at the centre of the cable and a sheath (4) at the outermost layer of the cable; an insulation isolating layer (1) is arranged between the cable core (2) and the sheath (4); the cable core (2) is covered by the insulation isolating layer (1); alloy wires (3), the length directions of which are distributed longitudinally along the cable, are arranged between the insulation isolating layer (1) and the sheath (4). Due to the adoption of the technical scheme, a lot of heat is generated when electric current passes through the cable, thereby raising insulation of the cable and temperature of the sheath to achieve the temperature meeting the requirements on coating the cable; the plastic or rubber sheath of the cable is a non-conductor of heat and has a certain heat preservation function; within a certain period of time, the certain temperature and heat can be maintained, the cracking of the cable is avoided and the guarantee for construction of power engineering is provided.
Description
Technical field
The invention belongs to the technical field of special cable structure, specifically, the present invention relates to a kind of cold resistant cable.
Background technology
China is geographical vast, and the north and south temperature difference is big, and especially in the winter time, the outdoor temperature of northeast region-by-region can reach subzero about 50 ℃.Under this arctic weather condition, plastics and part rubber material become embrittlement, cracking, even the natural cracking obscission appears, let alone carry out cable laying and constructed.Common cable is constructed to lay in this condition and cable insulation and sheath cracking will be occurred, and conductor exposes and can't use.This just brings influence to project progress, brings difficulty for the people's life.
Summary of the invention
The invention provides the technical scheme of cold resistant cable, its objective is under the condition of cold, solve the cracking problem that cable laying occurs, for engineering construction provides safeguard.
To achieve these goals, the technical scheme taked of the present invention is:
Cold resistant cable provided by the present invention, comprise the cable core of being located at described cable center and be located at the outermost sheath of described cable, between described cable core and described sheath, be provided with dielectric isolation layer, described dielectric isolation layer wraps up described cable core, outside described dielectric isolation layer, in the described sheath, be provided with the alloy silk that its length direction vertically distributes along described cable.
When described cable lays, the alloy silk at the two ends of described cable is inserted civilian power supply respectively under the condition of cold.
Can also be by the following technical solutions:
On every described cable, the quantity of described alloy silk is more than one; On the cross section of described cable, described alloy silk evenly distributes along the excircle of described dielectric isolation layer.
Described alloy silk is divided into two kinds, and is the metal material of different colours, and the alloy silk of two kinds of different colours is spaced apart on the excircle of described dielectric isolation layer, and adopts the insulation system insulation each other; When described cable lays under the condition of cold, with the alloy silk of the different colours at the two ends of described cable respectively interleaved connect, form reciprocal current path, at an end of described cable, form the connection termination, civilian power supply is inserted in described connection termination.
The present invention adopts technique scheme, electric current by the time can produce a large amount of heats, therefore the insulation of cable and sheath temperature raise, reach the temperature of cable laying requirement, the plastics of cable or rubber sheath are the non-conductors of heat, have certain insulation effect, in the regular hour, can keep certain temperature and heat, avoid the cracking of cable, for the construction of power engineering provides safeguard.
Description of drawings
Below expressed content of each width of cloth accompanying drawing of this specification and the mark among the figure are made brief description:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the expanded view of alloy silk.
Be labeled as among the figure:
1, dielectric isolation layer, 2, cable core, 3, the alloy silk, 4, sheath, 5, connect the termination.
Embodiment
Contrast accompanying drawing below, the description by to embodiment is described in further detail the specific embodiment of the present invention, to help those skilled in the art inventive concept of the present invention, technical scheme is had more complete, accurate and deep understanding.
The of the present invention structure expressed as Fig. 1, Fig. 2 is cold resistant cable, comprises the cable core 2 of being located at described cable center and is located at the outermost sheath 4 of described cable.
In order to solve the problem that exists at the described present known technology of this specification background technology part and to overcome its defective, be implemented under the cold condition, solve the cracking problem that cable laying occurs, be the goal of the invention that the power engineering construction provides safeguard, the technical scheme that the present invention takes is:
As depicted in figs. 1 and 2, cold resistant cable provided by the present invention, between described cable core 2 and described sheath 4, be provided with dielectric isolation layer 1, described dielectric isolation layer 1 is with described cable core 2 parcels, outside described dielectric isolation layer 1, in the described sheath 4, be provided with the alloy silk 3 that its length direction vertically distributes along described cable.
Alloy silk 3 has certain resistance, electric current by the time can produce a large amount of heats, therefore the dielectric isolation layer 1 of cable and sheath 4 temperature raise, and reach cable laying requirement temperature, avoid the cracking of cable, for the construction of power engineering provides safeguard.
Embodiment one:
When described cable lays, the alloy silk 3 at the two ends of described cable is inserted civilian power supply respectively under the condition of cold.
When cable lays in cold conditions, civilian power supply is inserted at the heating layer two ends of cable respectively, the non-conductor of the plastics of cable or rubber sheath heat not only also has certain insulation effect, in the regular hour, can keep certain temperature and heat.Like this, just can lay cable.
Embodiment two:
As shown in Figure 1, in order to make the heating of alloy silk on cable more even, on every described cable, the quantity of described alloy silk 3 is more than one; On the cross section of described cable, described alloy silk 3 evenly distributes along the excircle of described dielectric isolation layer 1.
Embodiment three:
As shown in Figure 2, on the basis of embodiment two, described alloy silk 3 is divided into two kinds, and is the metal material of different colours, the alloy silk 3 of two kinds of different colours is spaced apart on the excircle of described dielectric isolation layer 1, and adopts the insulation system insulation each other; When described cable lays under the condition of cold, with the alloy silk 3 of the different colours at the two ends of described cable respectively interleaved connect, form reciprocal current path, at an end of described cable, form connection termination 5, civilian power supply is inserted in described connection termination.
Same end at cable connects power supply, and it is convenient to make alloy silk 3 connect power supply like this.
Cable is behind stranding, extruded insulation separator 1, outside dielectric isolation layer 1, dredge around or the heating layer of braiding one deck alloy silk 3, this alloy silk 3 can produce a large amount of heats under the energising situation, heat, heat up for the dielectric isolation layer 1 and the sheath 4 of cable, the temperature requirement that the cable fulfils construction is laid extrudes sheath 4 outside heating layer.
The conductor of cable is the regulation that cable core 2 meets GB/T3956 standard and product standard, outside conductor by product standard requirement extruded insulation layer, the stranded stranding of insulated wire cores (if single-core cable does not then need stranding), outside cable core 2, extrude one deck dielectric isolation layer 1, outside dielectric isolation layer, dredge around or braiding one deck alloy silk heating layer, outside heating layer, extrude sheath by the product standard requirement.
Above-mentioned each exemplifying embodiment can be selected as required and various combination is used.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; or design of the present invention and technical scheme are directly applied to other occasion without improving, all within protection scope of the present invention.
Claims (4)
1. cold resistant cable, comprise the cable core (2) of being located at described cable center and be located at the outermost sheath of described cable (4), it is characterized in that: between described cable core (2) and described sheath (4), be provided with dielectric isolation layer (1), described dielectric isolation layer (1) wraps up described cable core (2), outside described dielectric isolation layer (1), in the described sheath (4), be provided with the alloy silk (3) that its length direction vertically distributes along described cable.
2. according to the described cold resistant cable of claim 1, it is characterized in that: on every described cable, the quantity of described alloy silk (3) is more than one; On the cross section of described cable, described alloy silk (3) evenly distributes along the excircle of described dielectric isolation layer (1).
3. according to the described cold resistant cable of claim 1, it is characterized in that: when described cable lays, the alloy silk (3) at the two ends of described cable is inserted civilian power supply respectively under the condition of cold.
4. according to the described cold resistant cable of claim 2, it is characterized in that: described alloy silk (3) is divided into two kinds, and be the metal material of different colours, the alloy silk (3) of two kinds of different colours is spaced apart on the excircle of described dielectric isolation layer (1), and adopts the insulation system insulation each other; When described cable lays under the condition of cold, with the alloy silk (3) of the different colours at the two ends of described cable respectively interleaved connect, form reciprocal current path, at an end of described cable, form connection termination (5), civilian power supply is inserted in described connection termination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102340714A CN102280185A (en) | 2011-08-16 | 2011-08-16 | Cold-resistant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102340714A CN102280185A (en) | 2011-08-16 | 2011-08-16 | Cold-resistant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102280185A true CN102280185A (en) | 2011-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102340714A Pending CN102280185A (en) | 2011-08-16 | 2011-08-16 | Cold-resistant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102280185A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106169328A (en) * | 2016-09-09 | 2016-11-30 | 青海欧耐特线缆有限公司 | A kind of cold-resistant aluminium alloy cable |
| CN106710680A (en) * | 2017-01-18 | 2017-05-24 | 山东聚辰电缆有限公司 | High-cold-resistance high-elasticity power cable and preparation method thereof |
| CN107017044A (en) * | 2017-05-18 | 2017-08-04 | 无锡市新阳光电缆有限公司 | A kind of single conductor shell-less fire-resisting cable |
Citations (6)
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| DE202004018910U1 (en) * | 2004-12-06 | 2005-02-10 | Eichenauer Heizelemente Gmbh & Co. Kg | Tube heater used in aircraft for de-icing purposes comprises heating cable with insulating sleeve made from thermoplastic fluoropolymer surrounding heating element |
| JP2006121793A (en) * | 2004-10-20 | 2006-05-11 | Fujikura Ltd | Snow melting spiral rod and melting snow electric wire |
| CN101329931A (en) * | 2008-07-11 | 2008-12-24 | 江苏赛德电气有限公司 | Snow-proof freezing resistant environment protection instrumentation control cable |
| CN201181607Y (en) * | 2008-03-03 | 2009-01-14 | 昆山火凤凰线缆有限公司 | Aerial snow-melting and deicing optical/electrical cable |
| CN101692568A (en) * | 2009-09-22 | 2010-04-07 | 李宏 | Anti-freezing overhead conductor and automatic control device thereof |
| CN201741480U (en) * | 2010-05-12 | 2011-02-09 | 高元松 | Self-control rain and snow freeze proofing cable |
-
2011
- 2011-08-16 CN CN2011102340714A patent/CN102280185A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006121793A (en) * | 2004-10-20 | 2006-05-11 | Fujikura Ltd | Snow melting spiral rod and melting snow electric wire |
| DE202004018910U1 (en) * | 2004-12-06 | 2005-02-10 | Eichenauer Heizelemente Gmbh & Co. Kg | Tube heater used in aircraft for de-icing purposes comprises heating cable with insulating sleeve made from thermoplastic fluoropolymer surrounding heating element |
| CN201181607Y (en) * | 2008-03-03 | 2009-01-14 | 昆山火凤凰线缆有限公司 | Aerial snow-melting and deicing optical/electrical cable |
| CN101329931A (en) * | 2008-07-11 | 2008-12-24 | 江苏赛德电气有限公司 | Snow-proof freezing resistant environment protection instrumentation control cable |
| CN101692568A (en) * | 2009-09-22 | 2010-04-07 | 李宏 | Anti-freezing overhead conductor and automatic control device thereof |
| CN201741480U (en) * | 2010-05-12 | 2011-02-09 | 高元松 | Self-control rain and snow freeze proofing cable |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106169328A (en) * | 2016-09-09 | 2016-11-30 | 青海欧耐特线缆有限公司 | A kind of cold-resistant aluminium alloy cable |
| CN106169328B (en) * | 2016-09-09 | 2019-05-07 | 青海欧耐特线缆有限公司 | A kind of cold-resistant aluminium alloy cable |
| CN106710680A (en) * | 2017-01-18 | 2017-05-24 | 山东聚辰电缆有限公司 | High-cold-resistance high-elasticity power cable and preparation method thereof |
| CN107017044A (en) * | 2017-05-18 | 2017-08-04 | 无锡市新阳光电缆有限公司 | A kind of single conductor shell-less fire-resisting cable |
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Application publication date: 20111214 |