CN206312594U - Power cable for subway - Google Patents
Power cable for subway Download PDFInfo
- Publication number
- CN206312594U CN206312594U CN201621415697.XU CN201621415697U CN206312594U CN 206312594 U CN206312594 U CN 206312594U CN 201621415697 U CN201621415697 U CN 201621415697U CN 206312594 U CN206312594 U CN 206312594U
- Authority
- CN
- China
- Prior art keywords
- layer
- outer layer
- conductor
- subway
- cable
- 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
- 239000004020 conductor Substances 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 230000004888 barrier function Effects 0.000 claims abstract description 21
- 239000000779 smoke Substances 0.000 claims abstract description 17
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 12
- 150000002367 halogens Chemical class 0.000 claims abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 11
- 239000001301 oxygen Substances 0.000 claims abstract description 11
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 10
- 239000003063 flame retardant Substances 0.000 claims abstract description 9
- 229920002943 EPDM rubber Polymers 0.000 claims abstract description 8
- 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 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 5
- 239000004744 fabric Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 241000283984 Rodentia Species 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 238000003786 synthesis reaction Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 150000001875 compounds Chemical group 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model is related to a kind of power cable for subway, including conductor, it is characterized in that：In the outer layer wrapping bag reinforced non-woven fabrics of the conductor, EPDM insulating barrier is extruded in the outer layer of reinforced non-woven fabrics, low smoke and zero halogen oxygen barrier layer is extruded in the outer layer of EPDM insulating barrier, in the wrapped yarn layer that blocks water of the outer layer of low smoke and zero halogen oxygen barrier layer, low-smoke halogen-free flame-retardant sheath layer is extruded in the outer layer of the yarn layer that blocks water.The conductor is twisted into strand using 33 copper wire bundles, and 61 strands stranded are formed using the stranded mode of 1+6+12+18+24 again during process.The filament diameter of the copper wire is 0.49mm.Power cable for subway simple structure described in the utility model, with good bandability, rodent-proof characteristic with short production cycle, with the long period, splendid, lightweight, the environmentally friendly advantage of water resistance.
Description
Technical field
The utility model is related to a kind of cable, and especially a kind of power cable for subway, belongs to field of cable technology.
Background technology
Metro Cable be it is a kind of be the cable of metro traction system power supply, therefore cable reliability directly affects subway fortune
Capable reliability, and cable is used in subway line, it is high to the requirement of its low smoke and zero halogen, and want subway line
Cable be to be in the region for thering is part location to have water and mouse life, therefore cable should have preferable water resistance and protection against rodents
Performance.To realize above-mentioned requirements, the structure and material of cable is as follows in prior art：
Conductor：Because trailer system uses 1500V DC voltages, therefore the cross-section of cable will reach 400mm2, existing
It is 400mm2 to employ the sectional area that the 2 class copper conductors of filament diameter no more than 2.99mm are made in technology in the selection of conductor
Copper conductor.
Insulation：In view of the electrical property and low smoke and zero halogen performance of cable, usual cable insulation uses the poly- second of crosslinking
Alkene；
Waterproof construction：Because rainy season can cause cable long period of soaking in water, by thickening sheath and in interior shield in cable
Layer is outer to be increased by one layer of waterproof layer to improve cable radial direction water resistance, and waterproof layer is typically one layer fire retardant nonwoven fabric belts.
Armor：The Main Function of armor is protection against rodents, is generally arranged between sheath and waterproof layer, and armor is used
Material be usually steel band or copper strips.
Sheath：In order to strengthen rodent-proof characteristic, and low-smoke non-halogen flame-retardant performance is realized, generally added using in polyolefine material
Enter Ratproof agent（Synthesis pungent element）To realize.
There is problems with and shortcoming in prior art：
1st, cable flexibility is poor：Due to the crosslinked polyolefin materials that the insulation of cable in the prior art, sheath are used, in addition
Conductor is the 2 class conductors for using, therefore the overall flexibility of cable is poor, it has not been convenient to installed；
2nd, protection against rodents effect is poor：Because the mode of the synthesis pungent element in sheath belongs to chemical mode, over time,
Synthesis pungent element can fade away, so as to lose rodent-proof characteristic.And the metal armor layers for using, after restrictive coating is broken by the teeth, metal armour
The easily accelerated ageing in dark moist environment of dress layer, can reduce cable service life；
4th, produce not environmentally：Synthesis pungent element is added in sheath material, to the skin of direct labor, respiratory tract all spinosities
Swash, have injury to human body；
5th, block-water effect is poor：Block-water effect by " thickening the coat layer of power cable+waterproof layer " mode is poor, and restrictive coating is easy
To be broken by mouse, and fire retardant nonwoven fabric major function is fire-retardant effect, due to using around-packing technology, be there are certain
Space, can cause that the water of outside enters inside cable.
The content of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of power cable for subway, energy
Enough solve the problems, such as that prior art cable flexibility is poor, protection against rodents effect is poor, production process not environmentally, block-water performance it is poor.
According to the technical scheme that the utility model is provided, the power cable for subway, including conductor, it is characterized in that：
The outer layer wrapping bag reinforced non-woven fabrics of the conductor, extrudes EPDM insulating barrier, in ternary in the outer layer of reinforced non-woven fabrics
The outer layer of the insulating barrier of second third extrudes low smoke and zero halogen oxygen barrier layer, in the wrapped yarn layer that blocks water of the outer layer of low smoke and zero halogen oxygen barrier layer, is blocking water
The outer layer of yarn layer extrudes low-smoke halogen-free flame-retardant sheath layer.
Further, the conductor is twisted into strand using 33 copper wire bundles, and 61 strands are used into 1+6+12+ again during process
The stranded mode of 18+24 is stranded to be formed.
Further, the filament diameter of the copper wire is 0.49mm.
Power cable for subway simple structure described in the utility model, it is with short production cycle, with more long with good bandability
The rodent-proof characteristic of time, water resistance is splendid, lightweight, environmentally friendly advantage.
Brief description of the drawings
Fig. 1 is the structural representation of power cable for subway described in the utility model.
Description of reference numerals：Conductor 1, reinforced non-woven fabrics 2, EPDM insulating barrier 3, low smoke and zero halogen oxygen barrier layer 4, block water
Yarn layer 5, low-smoke halogen-free flame-retardant sheath layer 6.
Specific embodiment
With reference to specific accompanying drawing, the utility model is described in further detail.
As shown in Figure 1：Power cable for subway described in the utility model include conductor 1, conductor 1 use filament diameter for
33 copper wire bundles of 0.49mm are twisted into strand, again enter 61 strands using the regular stranded mode of 1+6+12+18+24 during process
Row is stranded；In the outer layer wrapping bag reinforced non-woven fabrics 2 of conductor 1 while stranded conductor 1, prevent conductor 1 loose, then strengthening
The outer layer of type non-woven fabrics 2 is extruded with EPDM insulating barrier 3, and then the outer layer in EPDM insulating barrier 3 extrudes low smoke and zero halogen
Oxygen barrier layer 4, then in the wrapped yarn layer 5 that blocks water of outer layer of low smoke and zero halogen oxygen barrier layer 4, finally the outer layer in the yarn layer 5 that blocks water extrudes low
Cigarette halogen-free flameproof restrictive coating 6, it is desirable to 6 any surface finish of low-smoke halogen-free flame-retardant sheath layer, free from admixture and scratch.
The operation principle of power cable for subway described in the utility model：
1st, the flexibility of cable is improved：The flexibility and resist bending ability of cable depend primarily on the structure of cable, and
The structure of conductor wire core plays vital effect again in the construction of cable.In order that conductor wire core is soft, resist bending, with compared with
Conductance high, the utility model conductor design is into thin monofilament, beam stock, the compound structure for twisting.For the Special use side of cable
Formula, is finely adjusted in the string diameter of monofilament, uses filament diameter to be twisted into strand for 33 copper wire bundles of 0.49mm；Again by 61 during process
Root strand is carried out stranded using the regular stranded mode of 1+6+12+18+24, makes conductor structure more stable, and tightness degree is high, external diameter
Small, conductor wire core pliability is good.Conductor shielding, insulating barrier, insulation screen use pliability very in other the technical program
Elastomeric material high so that the integrally bending of cable is fine.
2nd, enhancing rodent-proof characteristic and the environmental-protecting performance of production：The utility model employs physics protection against rodents mode, will not opposite
Workman is produced to impact.Its protection against rodents principle is, because mouse cannot be bitten with diameter greater than 20mm's in the case of without impetus
Cable, therefore the outside diameter of cable is fabricated into the technical program into more than 40mm and cable surface is very smooth, cable surface is without any
Markings, markings also cause mouse when cable is stung without impetus.Adopt in this way, not only environmental protection, and manufacturing procedure
Not cumbersome, protection against rodents effect is good.
4th, water resistance：The utility model waterproof construction be " oxygen barrier layer+block water yarn layer ", on the one hand oxygen barrier layer plays
Certain radial direction water resistance, on the other hand improves the fire resistance of cable, protects internal structure, and the work of the yarn layer that blocks water
Be once cable cover(ing) breakage water enter cable inside, water blocking yarn can expand rapidly, prevent water go successively to inside cable.
Claims (3)
1. a kind of power cable for subway, including conductor（1）, it is characterized in that：In the conductor（1）Outer layer wrapping bag reinforced without
Spin cloth（2）, in reinforced non-woven fabrics（2）Outer layer extrude EPDM insulating barrier（3）, in EPDM insulating barrier（3）It is outer
Layer extrudes low smoke and zero halogen oxygen barrier layer（4）, in low smoke and zero halogen oxygen barrier layer（4）The wrapped yarn layer that blocks water of outer layer（5）, in the yarn layer that blocks water
（5）Outer layer extrude low-smoke halogen-free flame-retardant sheath layer（6）.
2. power cable for subway as claimed in claim 1, it is characterized in that：The conductor（1）It is twisted into using 33 copper wire bundles
Strand, again stranded is formed 61 strands using the stranded mode of 1+6+12+18+24 during process.
3. power cable for subway as claimed in claim 2, it is characterized in that：The filament diameter of the copper wire is 0.49mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621415697.XU CN206312594U (en) | 2016-12-22 | 2016-12-22 | Power cable for subway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621415697.XU CN206312594U (en) | 2016-12-22 | 2016-12-22 | Power cable for subway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206312594U true CN206312594U (en) | 2017-07-07 |
Family
ID=59246654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621415697.XU Expired - Fee Related CN206312594U (en) | 2016-12-22 | 2016-12-22 | Power cable for subway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206312594U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107665753A (en) * | 2017-10-09 | 2018-02-06 | 天津金山电线电缆股份有限公司 | A kind of subway dynamical system short-duration power module direct current cables and preparation method thereof |
-
2016
- 2016-12-22 CN CN201621415697.XU patent/CN206312594U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107665753A (en) * | 2017-10-09 | 2018-02-06 | 天津金山电线电缆股份有限公司 | A kind of subway dynamical system short-duration power module direct current cables and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170707 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |