CN201130556Y - Rated voltage 110-500kV crosslinked polyethylene insulation flame-proof composite sheath power cable - Google Patents
Rated voltage 110-500kV crosslinked polyethylene insulation flame-proof composite sheath power cable Download PDFInfo
- Publication number
- CN201130556Y CN201130556Y CNU2007203120621U CN200720312062U CN201130556Y CN 201130556 Y CN201130556 Y CN 201130556Y CN U2007203120621 U CNU2007203120621 U CN U2007203120621U CN 200720312062 U CN200720312062 U CN 200720312062U CN 201130556 Y CN201130556 Y CN 201130556Y
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- China
- Prior art keywords
- layer
- insulation
- sheath
- retardant
- flame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 33
- 229920003020 cross-linked polyethylene Polymers 0.000 title claims abstract description 19
- 239000004703 cross-linked polyethylene Substances 0.000 title claims abstract description 19
- 239000002131 composite material Substances 0.000 title abstract description 6
- 239000003063 flame retardant Substances 0.000 claims abstract description 28
- 239000004020 conductor Substances 0.000 claims abstract description 12
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 9
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 9
- 229920001179 medium density polyethylene Polymers 0.000 claims abstract description 8
- 239000004701 medium-density polyethylene Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000004677 Nylon Substances 0.000 claims abstract description 4
- 229920001778 nylon Polymers 0.000 claims abstract description 4
- 229920000098 polyolefin Polymers 0.000 claims abstract description 4
- 150000001875 compounds Chemical class 0.000 claims description 9
- 230000004888 barrier function Effects 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract description 10
- 239000012774 insulation material Substances 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 230000003139 buffering effect Effects 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model discloses a cross linked polyethylene insulation flame-retardant composite sheath power cable with voltage rating of 110-500kV, which comprises a conductor, a semi-conductive nylon gird, a shielding layer for the conductor, an insulation layer, a shielding layer for insulation, a semi-conductive buffering layer, a metal sheath, an anti-corrosive layer and an outer sheath from inner to outer in turn, wherein, the outer sheath comprises a medium-density polyethylene insulation type flame-retardant sheath, a polyvinyl chloride insulation type flame-retardant sheath and a polyolefin conductive layer from inner to outer; the medium-density polyethylene flame-retardant sheath adopted at the inner layer, the flame retardant polyvinyl chloride sheath adopted at the middle layer and the conductive layer adopted at the outer layer are extruded to form the outer sheath. The cross linked polyethylene insulation flame-retardant composite sheath power cable has the advantages that: the medium-density polyethylene has good water proof and anti-humidity result and low moisture absorption; the flame retardant polyvinyl chloride sheath has excellent flame retardant result; the extrusion of the conductive layer is even and stable; cross linked polyethylene nonpolar insulation material is adopted for the insulation layer; the insulation layer has low medium loss, good insulation, good flame retardation and waterproofness; the insulation layer can work below 90 DEG C.
Description
[technical field]
The utility model relates to a kind of power cable, relates in particular to the fire-retardant composite jacket power cable of rated voltage 110-500kV ultra-high voltage cross-linking polyethylene insulation.
[background technology]
Along with the continuous development of China's power industry, power cable is as the leading products important effect of play more and more in urban and rural power grids of power transmission and distribution.At present, homemade rated voltage 110-500kV power cable with cross-linked polyethylene insulation uses in enormous quantities, for adapting to the special requirement of security against fire, reduces the loss that the electric wire fire takes place, and the user proposes requirements at the higher level to fail safe, the reliability of cable.Therefore requirements at the higher level have been proposed the cable-flame retardant performance.
At present, domestic 110-500kV power cable with cross-linked polyethylene insulation adopts the polyvinyl chloride or the pe sheath of individual layer mostly, and its pluses and minuses are respectively arranged.Pvc sheath has certain fire resistance, but because the cable laying inclement condition under influencing factors such as moisture, chemical substance erosion, very easily causes cable jacket to damage, thereby influenced the normal use of cable.And pe sheath has certain waterproof ability, but oxygen index is very low, is very easy to cause fire.Simultaneously, domestic 110-500kV power cable with cross-linked polyethylene insulation adopts the equadag coating structure mostly, uses as the electrode of protective coverings of cable quality inspection.The poor adhesion of itself and jacket surface, cable all has obscission in after-combustion, construction and running, for the cable quality inspection brings hidden danger.And, when producing, very large harm arranged to operating personnel are healthy.Therefore, in order to satisfy the demand in market, press for the cable that exploitation has good flame retardant property, humidity resistance and is easy to cable is carried out quality examination.
[summary of the invention]
The purpose of this utility model is exactly in order to solve problems of the prior art, proposes a kind of Cross-linked Polyethylene Insulation Fire-retardant Compound Boot Power Cable with 110-500kv Rating Voltage, can have higher fire resistance and water resistance simultaneously.
For achieving the above object, the utility model patent has proposed a kind of Cross-linked Polyethylene Insulation Fire-retardant Compound Boot Power Cable with 110-500kv Rating Voltage, comprise conductor, semiconductive nylon band, conductor shield, insulating barrier, insulation screen, semi-conductive buffer layer, metallic sheath, anticorrosive coat, oversheath from inside to outside successively, described oversheath comprises medium density polyethylene insulated type fire retardant jacket, polyvinyl chloride insulation type fire retardant jacket, polyolefin conductive layer from inside to outside successively.
As preferably, insulating barrier is crosslinked polyetylene insulated layer.
As preferably, the semi-conductive buffer layer adopts the semiconductive expansion water strip.
As preferably, metallic sheath adopts and extrudes the corrugated aluminium sheath structure.
The beneficial effects of the utility model: the utility model oversheath adopts the fire-retardant medium density polyethylene sheath of internal layer, middle level flame-proof polyvinyl chloride sheath and three layers of composite jacket of outer conductive layer to extrude and forms.Medium density polyethylene material hydroscopicity is low, has good waterproof moisture resistance effect; The flame-proof polyvinyl chloride sheath has good flame retardant effect, and conductive layer extrudes evenly, and is stable.Insulating barrier adopts crosslinked polyethylene insulation material, and crosslinked polyethylene is a kind of non-polar material, and dielectric loss is lower, and insulation property are very good, can be 90 ℃ of following long-term works.The semi-conductive buffer layer adopts the semiconductive expansion water strip, can effectively stop the moisture radial penetration.Metallic sheath adopts and extrudes corrugated aluminium sheath, and favorable sealing property can stop moisture radially to corrode, and the requirement of cable short circuit capacity is satisfied in the cross section, pricks the requirement that the line degree of depth and pitch satisfy the cable bending property.Conductor adopts 2 class flexible conductors of GB/T3956-1997 regulation, and 20 ℃ of D.C. resistances of this conductor satisfy the requirement of standard, press coefficient greater than 90%, and Stability Analysis of Structures can stop moisture vertically to spread in conductor inside.Have good flame performance and water resistance simultaneously.
Feature of the present utility model and advantage will be elaborated in conjunction with the accompanying drawings by embodiment.
[description of drawings]
Fig. 1 is the structural representation of the utility model Cross-linked Polyethylene Insulation Fire-retardant Compound Boot Power Cable with 110-500kv Rating Voltage.
[embodiment]
Consult Fig. 1, cable comprises conductor 1, semiconductive nylon band 2, conductor shield 3, insulating barrier 4, insulation screen 5, semi-conductive buffer layer 6, metallic sheath 7, anticorrosive coat 8, oversheath from inside to outside successively, and described oversheath comprises medium density polyethylene insulated type fire retardant jacket 9, polyvinyl chloride insulation type fire retardant jacket 10, polyolefin conductive layer 11 from inside to outside successively.
Adopt three layers of composite jacket technology to extrude conductive layer, make oversheath combine with conductive layer firmly, cable is at after-combustion, construction and running difficult drop-off, oversheath surface conductance layer is pressed GB/T2951.28 and GB/T2952.1 regulation through the scraped finish test, the scraped finish part detects with universal instrument, still has electric conductivity.Check the cable jacket integrity after 110kV and the above power cable with cross-linked polyethylene insulation installation, and require cable jacket can tolerate direct voltage 25kV that keep 1min, oversheath does not puncture.Can forever keep conductive layer, cable operation a period of time, it is more convenient to make regular check on oversheath quality and insulation resistance.Solved in the production process, during coated graphite, graphite distributes easily and causes environmental pollution, near the easy problem of short-circuit of electric equipment.This cable has fire resistance, humidity resistance preferably and is easy to cable is carried out the cable of quality examination, can be widely used in high pressure and extra-high-tension cable transmission line.
The utility model cable bears scraped finish test and gas-tight test.The utility model is mainly used in Cross-linked Polyethylene Insulation Fire-retardant Compound Boot Power Cable with 110-500kv Rating Voltage.
The foregoing description is to explanation of the present utility model, is not to qualification of the present utility model, any structure after the utility model simple transformation is all belonged to protection range of the present utility model.
Claims (4)
1. Cross-linked Polyethylene Insulation Fire-retardant Compound Boot Power Cable with 110-500kv Rating Voltage, it is characterized in that: comprise conductor (1), semiconductive nylon band (2), conductor shield (3), insulating barrier (4), insulation screen (5), semi-conductive buffer layer (6), metallic sheath (7), anticorrosive coat (8), oversheath from inside to outside successively, described oversheath comprises medium density polyethylene insulated type fire retardant jacket (9), polyvinyl chloride insulation type fire retardant jacket (10), polyolefin conductive layer (11) from inside to outside successively.
2. Cross-linked Polyethylene Insulation Fire-retardant Compound Boot Power Cable with 110-500kv Rating Voltage as claimed in claim 1 is characterized in that: insulating barrier (4) is crosslinked polyetylene insulated layer.
3. Cross-linked Polyethylene Insulation Fire-retardant Compound Boot Power Cable with 110-500kv Rating Voltage as claimed in claim 1 is characterized in that: semi-conductive buffer layer (6) adopts the semiconductive expansion water strip.
4. Cross-linked Polyethylene Insulation Fire-retardant Compound Boot Power Cable with 110-500kv Rating Voltage as claimed in claim 1 is characterized in that: metallic sheath (7) adopts and extrudes the corrugated aluminium sheath structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203120621U CN201130556Y (en) | 2007-12-19 | 2007-12-19 | Rated voltage 110-500kV crosslinked polyethylene insulation flame-proof composite sheath power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203120621U CN201130556Y (en) | 2007-12-19 | 2007-12-19 | Rated voltage 110-500kV crosslinked polyethylene insulation flame-proof composite sheath power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201130556Y true CN201130556Y (en) | 2008-10-08 |
Family
ID=40018422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203120621U Expired - Fee Related CN201130556Y (en) | 2007-12-19 | 2007-12-19 | Rated voltage 110-500kV crosslinked polyethylene insulation flame-proof composite sheath power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201130556Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102368405A (en) * | 2011-10-31 | 2012-03-07 | 无锡市沪安电线电缆有限公司 | High-voltage direct-current polymeric cable |
| CN104036864A (en) * | 2014-06-27 | 2014-09-10 | 江苏凯达电缆有限公司 | Novel overhead insulation power cable |
| CN104103372A (en) * | 2014-07-02 | 2014-10-15 | 安徽华通电缆集团有限公司 | Cross linked polyethylene insulating refractory power cable with rated voltage of 110kv |
| CN110783031A (en) * | 2019-10-14 | 2020-02-11 | 江苏泰祥电线电缆有限公司 | Temperature measurement cable for high-temperature-resistant tensile-fracture-resistant steel plant |
-
2007
- 2007-12-19 CN CNU2007203120621U patent/CN201130556Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102368405A (en) * | 2011-10-31 | 2012-03-07 | 无锡市沪安电线电缆有限公司 | High-voltage direct-current polymeric cable |
| CN104036864A (en) * | 2014-06-27 | 2014-09-10 | 江苏凯达电缆有限公司 | Novel overhead insulation power cable |
| CN104103372A (en) * | 2014-07-02 | 2014-10-15 | 安徽华通电缆集团有限公司 | Cross linked polyethylene insulating refractory power cable with rated voltage of 110kv |
| CN110783031A (en) * | 2019-10-14 | 2020-02-11 | 江苏泰祥电线电缆有限公司 | Temperature measurement cable for high-temperature-resistant tensile-fracture-resistant steel plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Morning Cable Co., Ltd. Assignor: Zhu Shuiliang Contract fulfillment period: 2008.12.25 to 2013.12.24 Contract record no.: 2008330002833 Denomination of utility model: XLPE insulated flame retardant composite sheath power cable with rated voltage 110-500kV Granted publication date: 20081008 License type: Exclusive license Record date: 20081226 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.12.25 TO 2013.12.24; CHANGE OF CONTRACT Name of requester: ZHEJIANG PROVINCE CHENGUANG CABLE CO., LTD. Effective date: 20081226 |
|
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG PROVINCE CHENGUANG CABLE CO., LTD. Free format text: FORMER OWNER: ZHU SHUILIANG Effective date: 20090424 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090424 Address after: White Sand Bay, Quan Tang Town, Zhejiang City, Pinghu Province, China: 314204 Patentee after: Zhejiang Morning Cable Co., Ltd. Address before: Chenguang Industrial Zone, Quan Tang Town, Zhejiang City, Pinghu Province, China: 314204 Patentee before: Zhu Shuiliang |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081008 Termination date: 20121219 |