CN202042266U - Marine fire-resistant power cable with inner and outer copper wire weaving armored polrvinyl chloride sheaths - Google Patents
Marine fire-resistant power cable with inner and outer copper wire weaving armored polrvinyl chloride sheaths Download PDFInfo
- Publication number
- CN202042266U CN202042266U CN201120092443XU CN201120092443U CN202042266U CN 202042266 U CN202042266 U CN 202042266U CN 201120092443X U CN201120092443X U CN 201120092443XU CN 201120092443 U CN201120092443 U CN 201120092443U CN 202042266 U CN202042266 U CN 202042266U
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- CN
- China
- Prior art keywords
- power cable
- conductor
- copper wire
- fire
- polyvinyl chloride
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Abstract
The utility model discloses a marine fire-resistant power cable with inner and outer fire-resistant copper wire weaving armored polrvinyl chloride sheaths. The power cable comprises a conductor cable core, wherein the conductor cable core is composed of a copper conductor, a fire-resistant mica layer, a shielding layer and a cross-linked polyethylene insulated sheath; a wrapping tape, an inner polrvinyl chloride sheath, a copper wire weaving armored layer and an outer polrvinyl chloride sheath are coated outside the conductor cable core; and a plurality of strengthening cores are arranged between the wrapping tape and the inner polrvinyl chloride sheath. The power cable is simple in structure and is easy to realize; the inner and outer polrvinyl chloride sheaths outside the conductor cable core can effectively improve the inflaming retarding capacity and the safety of the power cable; the shielding layer outside the copper conductor can effectively shield electromagnetic waves; and the strengthening cores arranged between the wrapping tape and the inner polrvinyl chloride sheath play a role in supporting and effectively improve the strength of the power cable.
Description
Technical field
The utility model relates to the power cable field, is specially the inside and outside sheath ship power cable of a kind of fire-resistant copper wire braiding armouring polyvinyl chloride.
Background technology
Power cable is the electric equipment that is used to transmit and distribute electric energy.In power circuit, the shared proportion of cable increases just gradually.It is transmission and distribute high-power electric energy in the basic routing line of electric power system that power cable mainly acts on.Modern steamer electrifing degree is higher, need use a large amount of power cables and carry out electric energy transmitting, and modern steamer has requirement for the fire-resistance property of power cable, and traditional power cable can't satisfy the demand of modern steamer.
The utility model content
The purpose of this utility model provides the inside and outside sheath ship power cable of a kind of fire-resistant copper wire braiding armouring polyvinyl chloride, can't satisfy the problem of modern steamer demand with the power cable fire-resistance property that solves prior art.
In order to achieve the above object, the technical scheme that the utility model adopted is:
The inside and outside sheath ship power cable of fire-resistant copper wire braiding armouring polyvinyl chloride, it is characterized in that: the conductor thread core that includes two compound bundle strands, fire-resistant mica layer, screen, crosslinked polyetylene insulated cover that described conductor thread core is enclosed within outside the copper conductor by copper conductor, successively constitute, the twisting pitch ratio of two conductor thread cores is less than 10 times, and copper conductor resistivity is less than 0.017241 Ω .mm
2/ m, two conductor thread core outsides are coated with twining package tape, polyvinyl chloride inner sheath, copper wire braiding armour, polyvinyl chloride oversheath successively, are provided with many strengthening cores around the power cable center between described twining package tape and the polyvinyl chloride inner sheath.The inside and outside sheath ship power cable of described fire-resistant copper wire braiding armouring polyvinyl chloride, it is characterized in that: described copper conductor surface is coated with the tin layer.
The inside and outside sheath ship power cable of described fire-resistant copper wire braiding armouring polyvinyl chloride is characterized in that: described copper wire braiding armour is formed by the annealed copper wire braiding that the surface is coated with the tin layer.
The utility model is simple in structure, is easy to realize.Conductor thread core plays the effect of electric energy transmitting, by compound bundle strand two conductor thread cores are twisted together, and twisting pitch can guarantee the power cable compact conformation than less than 10 times, and reduce the loss of electric energy, copper conductor resistivity is less than 0.017241 Ω .mm
2/ m can improve the efficiency of transmission of electric energy, the outer fire-resistant mica layer of copper conductor can improve the fire resistance of conductor thread core effectively, screen outside the copper conductor is shielding electromagnetic wave effectively, the annealed copper wire that is woven into copper wire braiding armour is coated with the tin layer outward, prevent the oxidative phenomena in the course of processing and use, in the polyvinyl chloride outside the conductor thread core, oversheath can improve the fire retardancy of power cable effectively, also improved the fail safe of power cable, many strengthening cores between twining package tape and the polyvinyl chloride inner sheath are played a supporting role, and have also strengthened the intensity of power cable effectively.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
As shown in Figure 1.The inside and outside sheath ship power cable of fire-resistant copper wire braiding armouring polyvinyl chloride, include the conductor thread core 1 of two compound bundle strands, fire-resistant mica layer 3, screen 4, crosslinked polyetylene insulated covers 5 that conductor thread core 1 is enclosed within outside the copper conductor 2 by copper conductor 2, successively constitute, copper conductor 2 surfaces are coated with the tin layer, the twisting pitch ratio of two conductor thread cores 1 is less than 10 times, and copper conductor 2 resistivity are less than 0.017241 Ω .mm
2/ m, two conductor thread core 1 outsides are coated with twining package tape 6, polyvinyl chloride inner sheath 7, copper wire braiding armour 8, polyvinyl chloride oversheath 9 successively, are provided with many strengthening cores 10 around the power cable center between twining package tape 6 and the polyvinyl chloride inner sheath 7.Copper wire braiding armour 8 is formed by the annealed copper wire braiding that the surface is coated with the tin layer.
In the utility model, conductor adopts oxygen-free copper bar, and the resistivity of copper is less than 0.017241 Ω .mm
2/ m (20 ℃).Annealed copper wire after the wire drawing carries out zinc-plated processing, prevents the oxidative phenomena in the course of processing and use.Conductor thread core adopts compound bundle strand, and the twisting pitch ratio is less than 10 times.The outer wrapped fire-resistant mica layer of conductor thread core, temperature resistant grade reaches 800 ℃ ± 50 ℃, and crosslinked polyetylene insulated composite material is adopted in insulation.Semi-finished product soak voltage or dry type spark test.Inner sheath adopts the flame-proof polyvinyl chloride protective cover material.The braiding of employing tin annealed copper wire.Oversheath adopts the flame-proof polyvinyl chloride protective cover material.The exfactory inspection project has: conductor DC resistance, insulation resistance, AC voltage withstand test, construction of cable dimensional gaughing, the inspection of cable outward appearance sign etc.
Claims (3)
1. the inside and outside sheath ship power cable of fire-resistant copper wire braiding armouring polyvinyl chloride, it is characterized in that: the conductor thread core that includes two compound bundle strands, fire-resistant mica layer, screen, crosslinked polyetylene insulated cover that described conductor thread core is enclosed within outside the copper conductor by copper conductor, successively constitute, the twisting pitch ratio of two conductor thread cores is less than 10 times, and copper conductor resistivity is less than 0.017241 Ω .mm
2/ m, two conductor thread core outsides are coated with twining package tape, polyvinyl chloride inner sheath, copper wire braiding armour, polyvinyl chloride oversheath successively, are provided with many strengthening cores around the power cable center between described twining package tape and the polyvinyl chloride inner sheath.
2. the inside and outside sheath ship power cable of fire-resistant copper wire braiding armouring polyvinyl chloride according to claim 1, it is characterized in that: described copper conductor surface is coated with the tin layer.
3. the inside and outside sheath ship power cable of fire-resistant copper wire braiding armouring polyvinyl chloride according to claim 1 is characterized in that: described copper wire braiding armour is formed by the annealed copper wire braiding that the surface is coated with the tin layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120092443XU CN202042266U (en) | 2011-03-31 | 2011-03-31 | Marine fire-resistant power cable with inner and outer copper wire weaving armored polrvinyl chloride sheaths |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120092443XU CN202042266U (en) | 2011-03-31 | 2011-03-31 | Marine fire-resistant power cable with inner and outer copper wire weaving armored polrvinyl chloride sheaths |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202042266U true CN202042266U (en) | 2011-11-16 |
Family
ID=44969703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120092443XU Expired - Fee Related CN202042266U (en) | 2011-03-31 | 2011-03-31 | Marine fire-resistant power cable with inner and outer copper wire weaving armored polrvinyl chloride sheaths |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202042266U (en) |
-
2011
- 2011-03-31 CN CN201120092443XU patent/CN202042266U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20120331 |