CN203721350U - An irradiation crosslinking polyethylene insulation highly flame retardant power cable used in coastal cities - Google Patents
An irradiation crosslinking polyethylene insulation highly flame retardant power cable used in coastal cities Download PDFInfo
- Publication number
- CN203721350U CN203721350U CN201320859602.3U CN201320859602U CN203721350U CN 203721350 U CN203721350 U CN 203721350U CN 201320859602 U CN201320859602 U CN 201320859602U CN 203721350 U CN203721350 U CN 203721350U
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- CN
- China
- Prior art keywords
- layer
- flame retardant
- power cable
- coastal cities
- water
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- 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
- 239000003063 flame retardant Substances 0.000 title claims abstract description 48
- 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 title claims abstract description 23
- 238000009413 insulation Methods 0.000 title claims abstract description 22
- 239000004698 Polyethylene Substances 0.000 title abstract 5
- 238000004132 cross linking Methods 0.000 title abstract 5
- -1 polyethylene Polymers 0.000 title abstract 5
- 229920000573 polyethylene Polymers 0.000 title abstract 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000004020 conductor Substances 0.000 claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 13
- 239000000945 filler Substances 0.000 claims abstract description 10
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 7
- 239000001301 oxygen Substances 0.000 claims abstract description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 6
- 230000004888 barrier function Effects 0.000 claims description 17
- 239000011248 coating agent Substances 0.000 claims description 17
- 238000000576 coating method Methods 0.000 claims description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 240000005572 Syzygium cordatum Species 0.000 abstract description 7
- 235000006650 Syzygium cordatum Nutrition 0.000 abstract description 7
- 239000002253 acid Substances 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
- 238000002955 isolation Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 6
- 239000004703 cross-linked polyethylene Substances 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
The utility model discloses an irradiation crosslinking polyethylene insulation highly flame retardant power cable used in coastal cities. The irradiation crosslinking polyethylene insulation highly flame retardant power cable used in the coastal cities comprises a sheath layer. Several cable cores are installed in the sheath layer. Each cable core has a conductor. Metal shielding layers wrap the conductors. A flame retardant wrapping belt layer, a longitudinal water resistant layer, an oxygen isolation layer, an armor layer and a flame retardant wrapping belt layer are arranged between the cable cores and the sheath layer in a wrapped mode. A flame retardant filler also fills between the cable cores and the flame retardant wrapping belt layer. The irradiation crosslinking polyethylene insulation highly flame retardant power cable used in the coastal cities is characterized in that water-tree retardant internal shield layers, water-tree retardant insulating layers and water-tree retardant outer shield layers are arranged between the conductors and the corresponding shielding layers in a wrapped mode. The water-tree retardant internal shield layers, the water-tree retardant insulating layers and the water-tree retardant outer shield layers are of three-layer co-extrusion structures. According to the irradiation crosslinking polyethylene insulation highly flame retardant power cable used in the coastal cities, the waterproof performance is relatively good; acid and alkaline air in coastal regions can be prevented from corroding the cable; the service life of the cable is substantially prolonged; and the utility model is mainly applied to cables in the coastal cities.
Description
Technical field
The utility model relates to cable technology field, IXPE insulation high flame retardant power cable for especially a kind of coastal cities.
Background technology
At present, along with developing rapidly of national economy and power industry, each field increases day by day to the demand of power cable with cross-linked polyethylene insulation.Traditional power cable with cross-linked polyethylene insulation includes restrictive coating, and some cable cores are housed in restrictive coating, and every cable core all has conductor, and conductor is coated with internal shield, insulating barrier, outer shielding layer and metal screen layer outward successively.Between cable core and restrictive coating, be also coated with successively fire-retardant belting layer, longitudinal water-blocking layer, oxygen barrier layer, armour and fire-retardant belting layer, between cable core and fire-retardant belting layer, be also filled with fire-retardant filler.This traditional common power cable with cross-linked polyethylene insulation, because water resistance is poor, is only applicable to general environment, is not suitable with some areas as special in coastal cities environment.In coastal cities, power cable with cross-linked polyethylene insulation is often immersed in water or for a long time and works under wet environment, this common power cable with cross-linked polyethylene insulation is immersed in water or for a long time works under wet environment, hydrone easily forms water tree in the insulating barrier of cable, thereby cause the insulating barrier of cable breakdown, cause electric leakage, cause cable shorter useful life.Therefore, designing a kind of coastal cities that can address the above problem well is extremely necessary with IXPE insulation high flame retardant power cable.
Summary of the invention
The purpose of this utility model is improved for above-mentioned the deficiencies in the prior art exactly, and a kind of IXPE insulation high flame retardant power cable for coastal cities that can overcome preferably above-mentioned defect is provided.
Concrete scheme of the present utility model is: for traditional power cable with cross-linked polyethylene insulation, improve, it includes restrictive coating, and some cable cores are housed in restrictive coating, and every cable core all has conductor, and conductor is coated with metal screen layer; Between cable core and restrictive coating, be also coated with successively fire-retardant belting layer, longitudinal water-blocking layer, oxygen barrier layer, armour and fire-retardant belting layer, between cable core and fire-retardant belting layer, be also filled with fire-retardant filler; It is characterized in that: between described conductor and metal screen layer, be coated with successively water resistant tree internal shield, water resistant tree insulating barrier and water resistant tree outer shielding layer, and water resistant tree internal shield, water resistant tree insulating barrier and water resistant tree outer shielding layer are three-layer co-extruded structure.
Conductor in the utility model adopts tinned copper conductor, can effectively stop the corrosion of coastal area Acidity of Aikalinity air to cable, extends the useful life of cable.
Metal screen layer in the utility model adopts the copper strips layer that thickness is 0.12mm, can effectively stop the signal of external magnetic field to disturb.
Fire-retardant filler in the utility model adopts inorganic paper filling rope, has good water preventing ability and fire-resistant effect.
Longitudinal water-blocking layer in the utility model adopts the plastic-aluminum combined belt that thickness is 0.5mm, makes cable have good block-water performance.
Restrictive coating in the utility model adopts halogen-free and low-smoke flame-retardant polyolefin material layer, has very high flame-retarding characteristic.
Armour in the utility model is double-deck zinc-plated steel belt layer.
The utlity model has good block-water performance, fire resistance, fire resistance, can effectively stop the signal of external magnetic field to disturb and the corrosion of coastal area Acidity of Aikalinity air to cable, make it more can adapt to the particular surroundings in coastal cities, also greatly extended the useful life of cable simultaneously.
Accompanying drawing explanation
Fig. 1 is section structure schematic diagram of the present utility model.
In figure: 1-cable core, 2-water resistant tree insulating barrier, 3-metal screen layer, the fire-retardant belting layer of 4-, 5-oxygen barrier layer, the fire-retardant filler of 6-, 7-restrictive coating, the fire-retardant belting layer of 8-, 9-armour, 10-longitudinal water-blocking layer, 11-water resistant tree outer shielding layer, 12-water resistant tree internal shield, 13-conductor.
Embodiment
Below in conjunction with accompanying drawing, introduce in detail preferred embodiment of the present utility model.
Referring to Fig. 1, the utility model includes restrictive coating 7, and three cable cores 1 are housed in restrictive coating 7, and every cable core 1 all has conductor 13, the outer metal screen layer 3 that is all coated with of conductor 13.Between cable core 1 and restrictive coating 7, be also coated with successively fire-retardant belting layer 4, longitudinal water-blocking layer 10, oxygen barrier layer 5, armour 9 and fire-retardant belting layer 8, between cable core 1 and fire-retardant belting layer 8, be also filled with fire-retardant filler 6; Particularly: between described conductor 13 and metal screen layer 3, be coated with successively water resistant tree internal shield 12, water resistant tree insulating barrier 2 and water resistant tree outer shielding layer 11, and water resistant tree internal shield 12, water resistant tree insulating barrier 2 and water resistant tree outer shielding layer 11 are three-layer co-extruded structure.
Conductor described in the utility model 13 is tinned copper conductor.
Metal screen layer described in the utility model 3 is that thickness is the copper strips layer of 0.12mm.
Described in the utility model, fire-retardant filler 6 is inorganic paper filling rope.
The layer of longitudinal water-blocking described in the utility model 10 is that thickness is the plastic-aluminum combined belt of 0.5mm.
Restrictive coating described in the utility model 7 is halogen-free and low-smoke flame-retardant polyolefin material layer.
Armour described in the utility model 9 is double-deck zinc-plated steel belt layer.
By reference to the accompanying drawings embodiment of the present utility model is described above, but the utility model is not limited to above-mentioned embodiment, above-mentioned embodiment is preferred implementation of the present utility model, is only schematically, rather than restrictive.Those of ordinary skill in the art is under enlightenment of the present utility model, do not departing from the scope situation that the utility model aim and claim protect, cable core 1 in the utility model, water resistant tree insulating barrier 2, metal screen layer 3, fire-retardant belting layer 4, oxygen barrier layer 5, fire-retardant filler 6, restrictive coating 7, fire-retardant belting layer 8, armour 9, longitudinal water-blocking layer 10, water resistant tree outer shielding layer 11, the size of water resistant tree internal shield 12 and conductor 13, the selection of specification and material, can adjust according to actual needs, as long as these adjust the change without substantive principle, all belong to protection range of the present utility model.
Claims (7)
1. an IXPE insulation high flame retardant power cable for coastal cities, includes restrictive coating, and some cable cores are housed in restrictive coating, and every cable core all has conductor, and conductor is coated with metal screen layer; Between cable core and restrictive coating, be also coated with successively fire-retardant belting layer, longitudinal water-blocking layer, oxygen barrier layer, armour and fire-retardant belting layer, between cable core and fire-retardant belting layer, be also filled with fire-retardant filler; It is characterized in that: between described conductor and metal screen layer, be coated with successively water resistant tree internal shield, water resistant tree insulating barrier and water resistant tree outer shielding layer, and water resistant tree internal shield, water resistant tree insulating barrier and water resistant tree outer shielding layer are three-layer co-extruded structure.
2. IXPE insulation high flame retardant power cable for a kind of coastal cities according to claim 1, is characterized in that: described conductor is tinned copper conductor.
3. IXPE insulation high flame retardant power cable for a kind of coastal cities according to claim 1, is characterized in that: described metal screen layer is that thickness is the copper strips layer of 0.12mm.
4. IXPE insulation high flame retardant power cable for a kind of coastal cities according to claim 1, is characterized in that: described fire-retardant filler is inorganic paper filling rope.
5. IXPE insulation high flame retardant power cable for a kind of coastal cities according to claim 1, is characterized in that: described longitudinal water-blocking layer is that thickness is the plastic-aluminum combined belt of 0.5mm.
6. IXPE insulation high flame retardant power cable for a kind of coastal cities according to claim 1, is characterized in that: described restrictive coating is halogen-free and low-smoke flame-retardant polyolefin material layer.
7. IXPE insulation high flame retardant power cable for a kind of coastal cities according to claim 1, is characterized in that: described armour is double-deck zinc-plated steel belt layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320859602.3U CN203721350U (en) | 2013-12-25 | 2013-12-25 | An irradiation crosslinking polyethylene insulation highly flame retardant power cable used in coastal cities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320859602.3U CN203721350U (en) | 2013-12-25 | 2013-12-25 | An irradiation crosslinking polyethylene insulation highly flame retardant power cable used in coastal cities |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203721350U true CN203721350U (en) | 2014-07-16 |
Family
ID=51160488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320859602.3U Expired - Fee Related CN203721350U (en) | 2013-12-25 | 2013-12-25 | An irradiation crosslinking polyethylene insulation highly flame retardant power cable used in coastal cities |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203721350U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108447610A (en) * | 2018-03-26 | 2018-08-24 | 江苏通鼎光电科技有限公司 | A kind of fire-retardant fireproof cable and preparation method thereof |
| US11031153B2 (en) | 2018-11-05 | 2021-06-08 | General Cable Technologies Corporation | Water tree resistant cables |
-
2013
- 2013-12-25 CN CN201320859602.3U patent/CN203721350U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108447610A (en) * | 2018-03-26 | 2018-08-24 | 江苏通鼎光电科技有限公司 | A kind of fire-retardant fireproof cable and preparation method thereof |
| CN108447610B (en) * | 2018-03-26 | 2024-06-25 | 江苏通鼎光电科技有限公司 | Flame-retardant fireproof cable and manufacturing method thereof |
| US11031153B2 (en) | 2018-11-05 | 2021-06-08 | General Cable Technologies Corporation | Water tree resistant cables |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |