CN202258525U - Fireproof and waterproof flexible direct-current power transmission cable - Google Patents
Fireproof and waterproof flexible direct-current power transmission cable Download PDFInfo
- Publication number
- CN202258525U CN202258525U CN2011203463990U CN201120346399U CN202258525U CN 202258525 U CN202258525 U CN 202258525U CN 2011203463990 U CN2011203463990 U CN 2011203463990U CN 201120346399 U CN201120346399 U CN 201120346399U CN 202258525 U CN202258525 U CN 202258525U
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- power transmission
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Abstract
The utility model discloses a fireproof and waterproof flexible direct-current power transmission cable, which comprises a conductor and a conductor shielding layer, wherein the conductor consists of a plurality of soft copper wires which are stranded together; in the stranding mode, a normal stranding structure formed by bundle stranding and compound stranding is adopted; the directions of bundled wires of the conductor on each layer are opposite; a bundle stranding pitch is 14 to 16 times, and the compound stranding pitch is 10 to 12 times; a conductor shielding layer, an insulation layer and an insulation and shielding layer are extruded on the outer side of the conductor in one step; and an internal water-resisting layer, a total shielding layer, an external water-resisting layer, a fireproof layer, an armor layer and a sheath layer are coated on the outer side of the insulation and shielding layer sequentially. The fireproof and waterproof flexible direct-current power transmission cable has higher flexibility and compactness due to adoption of an optimized soft structured conductor; furthermore, under a direct-current running condition, the insulation layer is low in space charge accumulation, and has higher mechanical protection capacity; the plurality of shielding layers improves the shielding effect of the cable; as waterproof layers are arranged on the inner side and the outer side of the metal shielding layer, the waterproof performance is improved, and requirements of various use environments can be met.
Description
Technical field:
The utility model relates to the power cable field, relates in particular to a kind of fire-proof and water-proof flexible DC power transmission and uses cable.
Background technology:
Along with continuous progress in science and technology, the superiority of direct current transportation shows gradually.Direct current transportation is usually used in straits transmission of electricity, cable to city center power supply, networking aperiodic and remote large capacity transmission.Its medium and long distance large capacity transmission is an importance of direct current transportation, accounts for 70% of the DC transmission engineering that put into operation in the world.
Flexible high pressure direct current transportation technology is owing to the independence of its flexible and changeable operate power scope, operation, the simplicity and the superior transmission performance of power direction control obtain to pay close attention to widely.That the flexible high pressure DC power transmission line adopts is in light weight, volume is little, electric property is superior, environmental friendliness and HVDC XLPE cable easy to maintenance.Secondary energy sources aboundresources such as China's wind energy, solar energy, tidal energy, and the best transmission mode of this type energy output electric energy adopts the flexible high pressure direct current transportation exactly, thereby research flexible high pressure direct current transportation cable has realistic meanings.
Shielding properties, the fire resistance characteristic of such original cable can not satisfy the demand in the actual environment, cause the transmission information of cable to be obstructed, and need frequent change, have wasted lot of manpower and material resources.
The utility model content:
In order to address the above problem; The utility model provides a kind of fire-proof and water-proof flexible DC power transmission to use cable; Be applicable to ± the 30kV direct current transportation uses cable; Have advantages such as the feature of environmental protection, flame resistant burning, low-smoke non-halogen flame-retardant, structurally flexible, shielding properties, water resistance are superior, can adapt to various environments for use.
The technical scheme of the utility model is following:
The fire-proof and water-proof flexible DC power transmission is used cable; Comprise conductor, conductor shield; It is characterized in that: conductor is closed by many soft copper skein silks and constitutes, the regular lay configuration that stranded mode adopts bundle strand and multiple strand to form, and every layer of conductor synnema is in the opposite direction; Bundle strand pitch is 14～16 times; Twisting pitch again is 10～12 times, and the conductor outside is disposable to extrude three layers of conductor shield, insulating barrier and insulation screens, and the insulation screen outside is enclosed with interior water blocking layer, total screen, outer water blocking layer, flame retardant coating, armour, restrictive coating successively.
Described fire-proof and water-proof flexible DC power transmission is used cable, it is characterized in that: described conductor is selected the 5th type of soft copper silk of stipulating among the GB/T3956 for use.
Described fire-proof and water-proof flexible DC power transmission is used cable, it is characterized in that: described insulating layer material adopts high direct voltage XLPE.
Described fire-proof and water-proof flexible DC power transmission is used cable, it is characterized in that: described conductor screen and insulation shielding layer material adopt direct current semiconductive high-tension shielding.
Described fire-proof and water-proof flexible DC power transmission is used cable, it is characterized in that: water blocking layer adopts the overlapping wrapped formation of semiconductive waterstop with outer water blocking layer in described.
Described fire-proof and water-proof flexible DC power transmission is used cable, it is characterized in that: described flame retardant coating material adopts potteryization silicon rubber.
Described fire-proof and water-proof flexible DC power transmission is used cable, it is characterized in that: described armour is made up of highly-flexible degree stainless steel wire.
Described fire-proof and water-proof flexible DC power transmission is used cable, it is characterized in that: described restrictive coating material adopts low-smoke halogen-free flame-retardant thermoplastic elastomer.
Compared with prior art, the good result of the utility model is:
The soft junction structure conductor that the utility model adopt to be optimized, flexibility, compactness are better, under the DC operation condition; The accumulation of insulating barrier space charge is little; Have stronger mechanical protection ability, the multilayer screen layer has improved the shield effectiveness of cable, and the interior outside of metal screen layer is provided with watertight composition and has improved excellent waterproof property; And product has the environmental characteristics of good fireproof performance, low smoke and zero halogen, environmental protection, can adapt to the requirement of various environments for use.
Description of drawings:
Fig. 1 is the structural representation of the utility model.
Embodiment:
The fire-proof and water-proof flexible DC power transmission is used cable; Comprise conductor 1, conductor shield 2; Conductor 1 is selected the 5th type of soft copper silk of stipulating among the GB/T3956 for use; Conductor 1 is closed by many soft copper skein silks and constitutes; The regular lay configuration that stranded mode adopts bundle strand and multiple strand to form, every layer of conductor synnema is in the opposite direction, and bundle strand pitch is 14～16 times; Twisting pitch again is 10～12 times; Conductor 1 outside is disposable to extrude 4 three layers of the insulation screens of insulating barrier 3 and direct current semiconductive high-tension shielding material of conductor shield 2, the high direct voltage XLPE material of direct current semiconductive high-tension shielding material, and under ± 30kV direct current long-term work condition, the space charge accumulation is little; Cable long service life, insulation screen 4 outsides are enclosed with the interior water blocking layer 5 of the overlapping wrapped formation of multilayer semiconductive waterstop, total screen 6 of the wrapped formation of copper strips, the outer water blocking layer 7 of the overlapping wrapped formation of multilayer semiconductive waterstop, the flame retardant coating 8 of potteryization silastic material, the armour 9 that the braiding of highly-flexible degree stainless steel wire constitutes, the restrictive coating 10 of low-smoke halogen-free flame-retardant thermoplastic elastomer material successively.
The semiconductive material water-proof material of interior water blocking layer and outer water blocking layer employing high-hydroscopicity ability; Wrapped respectively ectonexine at metal screen layer; Constitute vertical water blocking layer, prevent that cable steam under long-term wet environment from immersing insulating barrier and causing the harm of water tree to influence the useful life of cable.
Flame retardant coating adopts and extrudes the new ceramics silastic material; In 650～1000 ℃ or above flame, silicon rubber is sintered into hard pottery housing in a short period of time, guarantees that circuit is in ablated process; Do not open circuit, not short circuit; Do not prolong combustion, extraordinary anti-flammability is arranged, thereby guaranteed that circuit does not cut off the power supply in fire.
Claims (8)
1. a fire-proof and water-proof flexible DC power transmission is used cable; Comprise conductor, conductor shield; It is characterized in that: conductor is closed by many soft copper skein silks and constitutes, the regular lay configuration that stranded mode adopts bundle strand and multiple strand to form, and every layer of conductor synnema is in the opposite direction; Bundle strand pitch is 14～16 times; Twisting pitch again is 10～12 times, and the conductor outside is disposable to extrude three layers of conductor shield, insulating barrier and insulation screens, and the insulation screen outside is enclosed with interior water blocking layer, total screen, outer water blocking layer, flame retardant coating, armour, restrictive coating successively.
2. fire-proof and water-proof flexible DC power transmission according to claim 1 is used cable, it is characterized in that: described conductor is selected the 5th type of soft copper silk of stipulating among the GB/T3956 for use.
3. fire-proof and water-proof flexible DC power transmission according to claim 1 is used cable, it is characterized in that: described insulating layer material adopts high direct voltage XLPE.
4. fire-proof and water-proof flexible DC power transmission according to claim 1 is used cable, it is characterized in that: described conductor screen and insulation shielding layer material adopt direct current semiconductive high-tension shielding.
5. fire-proof and water-proof flexible DC power transmission according to claim 1 is used cable, it is characterized in that: water blocking layer adopts the overlapping wrapped formation of semiconductive waterstop with outer water blocking layer in described.
6. fire-proof and water-proof flexible DC power transmission according to claim 1 is used cable, it is characterized in that: described flame retardant coating material adopts potteryization silicon rubber.
7. fire-proof and water-proof flexible DC power transmission according to claim 1 is used cable, it is characterized in that: described armour is made up of highly-flexible degree stainless steel wire.
8. fire-proof and water-proof flexible DC power transmission according to claim 1 is used cable, it is characterized in that: described restrictive coating material adopts low-smoke halogen-free flame-retardant thermoplastic elastomer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203463990U CN202258525U (en) | 2011-09-16 | 2011-09-16 | Fireproof and waterproof flexible direct-current power transmission cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203463990U CN202258525U (en) | 2011-09-16 | 2011-09-16 | Fireproof and waterproof flexible direct-current power transmission cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202258525U true CN202258525U (en) | 2012-05-30 |
Family
ID=46119733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203463990U Expired - Lifetime CN202258525U (en) | 2011-09-16 | 2011-09-16 | Fireproof and waterproof flexible direct-current power transmission cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202258525U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103137264A (en) * | 2013-03-26 | 2013-06-05 | 金杯电工衡阳电缆有限公司 | Environment-friendly medium voltage power supply cable for rail transit |
| CN104766649A (en) * | 2015-03-25 | 2015-07-08 | 安徽幸福电器电缆有限公司 | Acid and alkali resistance corrosion resistance cable |
| CN105609177A (en) * | 2016-03-03 | 2016-05-25 | 无锡市光环电缆有限公司 | Improved underwater power cable |
| CN106205850A (en) * | 2016-07-04 | 2016-12-07 | 戴亮祥 | A kind of high reliability power cable |
| CN109215854A (en) * | 2018-09-07 | 2019-01-15 | 河南讯达电缆有限公司 | Super-pressure flexible direct current fireproof cable |
| CN113539575A (en) * | 2021-06-22 | 2021-10-22 | 深圳永贵技术有限公司 | High-low temperature resistant flame-retardant wind energy cable and preparation method thereof |
-
2011
- 2011-09-16 CN CN2011203463990U patent/CN202258525U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103137264A (en) * | 2013-03-26 | 2013-06-05 | 金杯电工衡阳电缆有限公司 | Environment-friendly medium voltage power supply cable for rail transit |
| CN103137264B (en) * | 2013-03-26 | 2016-02-17 | 金杯电工衡阳电缆有限公司 | A kind of track traffic environment-friendly type medium-pressure electricity supply cable |
| CN104766649A (en) * | 2015-03-25 | 2015-07-08 | 安徽幸福电器电缆有限公司 | Acid and alkali resistance corrosion resistance cable |
| CN105609177A (en) * | 2016-03-03 | 2016-05-25 | 无锡市光环电缆有限公司 | Improved underwater power cable |
| CN106205850A (en) * | 2016-07-04 | 2016-12-07 | 戴亮祥 | A kind of high reliability power cable |
| CN109215854A (en) * | 2018-09-07 | 2019-01-15 | 河南讯达电缆有限公司 | Super-pressure flexible direct current fireproof cable |
| CN113539575A (en) * | 2021-06-22 | 2021-10-22 | 深圳永贵技术有限公司 | High-low temperature resistant flame-retardant wind energy cable and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 238339 Anhui city of Wuhu province Wuwei County high tech Industrial Park High Road No. 18 Patentee after: Anhui Shangwei Cable Co., Ltd. Address before: 238339 Anhui city of Wuhu province Wuwei County high tech Industrial Park High Road No. 18 Patentee before: Anhui Star Cable Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |