CN205810467U - Flat power cable - Google Patents
Flat power cable Download PDFInfo
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- CN205810467U CN205810467U CN201620590840.2U CN201620590840U CN205810467U CN 205810467 U CN205810467 U CN 205810467U CN 201620590840 U CN201620590840 U CN 201620590840U CN 205810467 U CN205810467 U CN 205810467U
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Abstract
A kind of flat power cable, its structure is: core by being surrounded by insulating barrier outside conductor successively, the first lapping layer, screen layer, the second lapping layer are constituted；Three cores are arranged side by side, then are surrounded by oversheath；On the same line, the spacing of adjacent core is identical in the axle center of three cores；Oversheath is to constitute by extruding protective cover material outside core；The radial cross-sectional shape of described flat power cable be corner be the rectangle of fillet；Protective cover material thickness d 1 scope extruded between adjacent core is 1.0～3.0mm.Compared with prior art, the service life of this cable reaches 60 years, and the entirely halogen-free low-smoke flame retardant material that whole cable uses, meet the environmental requirement in all standards that cable is suitable for.
Description
Technical field
The technical program belongs to field of cable technology, specifically flat power cable.
Background technology
In prior art, the important technology index of cable is cable life.In some special occasions, owing to environment has one
Fixed radiation, and the wiring space of cable has limitation, traditional cable is difficult to adapt to space on the basis of meeting electrical property to be wanted
Ask.And on the basis of the electrical property ensureing cable, improve the structural life-time of cable, and structurally adapt to space requirement, to setting
For meter, it is difficult to realize.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the invention proposes to use new structure, and exploitation has
60 year life-span, the space requirement of specific wiring, and the flat power cable being readily produced can be realized.
A kind of flat power cable, its structure is: core by be surrounded by successively outside conductor insulating barrier, the first lapping layer, screen layer,
Second lapping layer is constituted；Three cores are arranged side by side, then are surrounded by oversheath；The axle center of three cores on the same line, adjacent core
Spacing identical；Oversheath is to constitute by extruding protective cover material outside core；The radial cross-sectional shape of described flat power cable is corner
Rectangle for fillet；Protective cover material thickness d 1 scope extruded between adjacent core is 1.0～3.0mm；
Further, described conductor is to be closed stranded the obtaining of strand again by many tin-coated copper monofilament elder generation filament tows to meet GB
5th kind of warping strength tinned copper conductor of GB/T3956 cable.The diameter range of described conductor is 1.2～18.3mm；Cross-sectional area of conductor
Long-pending scope 0.75～185mm2The diameter range of described tin-coated copper monofilament is 0.193～0.500mm；
Described conductor is multiple strand configuration conductor；Strand lay ratio is not more than 25 times, and strand internal layer lay ratio is not more than 20 times again,
Strand outer layer lay ratio is not more than 12 times again, and strand Shu Heyu twists direction again and is left-hand.
Further, outside described conductor, the most overlapping wrapped layer of non-woven fabric constitutes lapping layer, and the thickness of this lapping layer is
0.14～0.18mm (preferably 0.16mm), rate of putting up is not less than 20%.
Further, the Insulation Material of described insulating barrier is low-smoke halogen-free flame-retardant isolating material；The thickness range of insulating barrier is 1.0
～2.2mm.Insulation Material can select the halogen-free low-smoke flame retardant material possessing 60 year life-span, trade mark XJ-32HB.
Further, described first and second lapping layers are overlapping wrapped high temperature resistance polyester bands, and the nominal of polyester belt is thick
Degree 0.04mm, rate of putting up is not less than 20%；The temperature resistant grade of high temperature resistance polyester band is 220 DEG C.
Further, described screen layer is tinned copper wire woven shield；Count is not less than 80%；Described tin-coated copper
Silk is that " calorizing " prepares tinned copper wire；A diameter of the 0.18 of described tinned copper wire～0.22mm.
Further, the protective cover material of described oversheath is low-smoke non-halogen flame-retardant elastomeric material；Extruding nominal thickness is
4.1mm, average thickness is not less than nominal value, and thinnest part thickness should be not less than the 85%-0.1mm of nominal thickness.Protective cover material is permissible
Select low-smoke and halogen-free flame retardant polyolefin jacket material, trade mark HW469-08.
Conductor uses warping strength tinned copper conductor in the 5th, uses " calorizing " tinned copper wire, outside conductor the most overlapping wrapped one
Layer reinforced non-woven fabrics, rate of putting up is not less than 20%.Described insulating barrier material is low-smoke non-halogen flame-retardant ethylene-propylene rubber material.Insulation
Layer material passes through accelerating thermal aging test, meets the requirement in 60 year life-span.Described shielding material is " calorizing " tinned copper wire,
Significantly oxidation and metachromatism is not had during use, good to the shield effectiveness of signal.Described sheath material is low cigarette
Halogen-free flame retarding elastomer material, has the excellent machinability of thermoplastic and the high intensity of thermosets concurrently, and has
Excellent bending resistance, is especially suitable for mobile occasion and uses.
Compared with prior art, the service life of this cable reaches 60 years, and electrical property is outstanding, and whole cable employing
It is entirely halogen-free low-smoke flame retardant material, the environmental requirement in all standards that symbol all-in-one cable is suitable for.Meanwhile, this cable is specific
Structure, can meet the requirement of most of wiring space, and this cable on producing without capital equipment is carried out big adjustment,
It is readily produced.
Accompanying drawing explanation
Fig. 1 is the radial section schematic diagram of this cable；
In figure: conductor 1, insulating barrier 2, twining package tape 3, shielding 4, oversheath 5.
Detailed description of the invention
With detailed description of the invention, the technical program is further described below below in conjunction with the accompanying drawings:
Such as Fig. 1 one flat power cable, its structure is: core is by being surrounded by insulating barrier, the first lapping layer, screen outside conductor successively
Cover layer, the second lapping layer is constituted；Three cores are arranged side by side, then are surrounded by oversheath；The axle center of three cores is on the same line, adjacent
The spacing of core is identical；Oversheath is to constitute by extruding protective cover material outside core；The radial cross-sectional shape of described flat power cable is
Corner is the rectangle of fillet；Protective cover material thickness d 1 scope extruded between adjacent core is 1.0～3.0mm；
In this example, described conductor is to be closed stranded the obtaining of strand again by many tin-coated copper monofilament elder generation filament tows to meet GB GB/
5th kind of warping strength tinned copper conductor of T3956 cable.The diameter range of described conductor is 1.2～18.3mm；Cross-sectional area of conductor amasss model
Enclose 0.75～185mm2The diameter range of described tin-coated copper monofilament is 0.193～0.500mm；
Described conductor is multiple strand configuration conductor；Strand lay ratio is not more than 25 times, and strand internal layer lay ratio is not more than 20 times again,
Strand outer layer lay ratio is not more than 12 times again, and strand Shu Heyu twists direction again and is left-hand.
In this example, outside described conductor, the most overlapping wrapped layer of non-woven fabric constitutes lapping layer, and the thickness of this lapping layer is
0.16mm, rate of putting up is not less than 20%.
In this example, the Insulation Material of described insulating barrier is low-smoke halogen-free flame-retardant isolating material；The thickness range of insulating barrier be 1.0～
2.2mm.Insulation Material selects the halogen-free low-smoke flame retardant material possessing 60 year life-span, trade mark XJ-32HB.
In this example, described first and second lapping layers are overlapping wrapped high temperature resistance polyester bands, the nominal thickness of polyester belt
0.04mm, rate of putting up is not less than 20%；The temperature resistant grade of high temperature resistance polyester band is 220 DEG C.
In this example, described screen layer is tinned copper wire woven shield；Count is not less than 80%；Described tinned copper wire
It is that " calorizing " prepares tinned copper wire；A diameter of the 0.18 of described tinned copper wire～0.22mm.
In this example, the protective cover material of described oversheath is low-smoke non-halogen flame-retardant elastomeric material；Extruding nominal thickness is
4.1mm, average thickness is not less than nominal value, and thinnest part thickness should be not less than the 85%-0.1mm of nominal thickness.Protective cover material is selected
Low-smoke and halogen-free flame retardant polyolefin jacket material, trade mark HW469-08.
This flat power cable manufacture method, comprises the steps: → wire drawing → annealing → filament tow conjunction → strand strand of selecting materials
Conjunction → conductor is wrapped → insulating barrier connect sulfur extrude → the first belting layer is wrapped → that metal screen layer arranges the → the second belting layer is wrapped
→ external sheath layer extrudes.Described insulating barrier extrude step be use saturated vapor connect sulfur production line carry out insulating barrier continuous vulcanization squeeze
Bag produces, and uses plsitive mold low-smoke non-halogen flame-retardant second the third Insulation Material to be extruded in outside wrapped rear conductor on crowded rubber equipment,
Extruding thickness is 1.4mm.Described external sheath layer extrudes step and refers to use extruding machine to be squeezed by low-smoke non-halogen flame-retardant elastomeric material
Wrapping after shielding outside core, extruding thickness is 4.1mm.
In the invention, described strand twisting step refers to multiple strand configuration conductor, and strand lay ratio is not more than 25 times, multiple
Strand internal layer lay ratio is not more than 20 times, and strand outer layer lay ratio is not more than 12 times again, and strand Shu Heyu twists direction again and is left-hand.
In the invention, described shielding be process is selected materials → wire drawing → annealing → filament tow conjunction → strand is stranded → lead
Body is wrapped → insulating barrier connect sulfur extrude → core of the first wrapped formation of belting layer carries out shielding and weaves with tinned copper wire, tin-coated copper
Filament diameter is 0.20mm, and count is not less than 80%.
In the invention, the material of described oversheath is low-smoke non-halogen flame-retardant elastomeric material, and nominal thickness is
4.1mm, average thickness is not less than nominal value, and thinnest part thickness should be not less than the 85%-0.1mm of nominal thickness.
Through detection, the performance parameter of this cable is as follows:
1. conductor DC resistance is not more than 0.565 Ω/km.
2. insulation heat extends: 250 DEG C, 15min, 0.2N/mm2Condition, maximum elongation rate 175% under load, after cooling
Big permanent elongation 15%.
3. mechanical performance before and after insulation ag(e)ing: aging front tensile strength is not less than 7.0Mpa, and elongation at break is not less than
200%；135 DEG C, after 168h is aging, variation in tensile strength maximum ± 30%, elongation at break rate of change maximum ± 30%.
4. ac voltage withstanding test: applying 3.5kV alternating voltage and continue 5min, cable does not punctures.
5. mechanical performance before and after sheath is aging: aging front tensile strength is not less than 9.0Mpa, and elongation at break is not less than
200%；100 DEG C, after 240h is aging, variation in tensile strength maximum ± 25%, elongation at break rate of change maximum ± 25%.
6.20 DEG C of insulation resistance constants: ambient temperature is 20 DEG C, insulation resistance constant is not less than 3670M Ω km.
7. cable minimum bending radius: Cable Bending Radius is not less than 335mm.
8. sheath allows maximum drawbar pull: sheath allows pull strength to be not more than 5661N.
Claims (7)
1. a flat power cable, its feature structure is:
Core by being surrounded by insulating barrier outside conductor successively, the first lapping layer, screen layer, the second lapping layer are constituted；
Three cores are arranged side by side, then are surrounded by oversheath；On the same line, the spacing of adjacent core is identical in the axle center of three cores；
Oversheath is to constitute by extruding protective cover material outside core；
The radial cross-sectional shape of described flat power cable be corner be the rectangle of fillet；
Protective cover material thickness d 1 scope extruded between adjacent core is 1.0～3.0mm.
Flat power cable the most according to claim 1, is characterized in that described conductor is by many tin-coated copper monofilament elder generation monofilament
Stranded the 5th kind of warping strength tinned copper conductor obtaining meeting GB GB/T3956 cable of Shu Hezai strand；
The diameter range of described conductor is 1.2～18.3mm；Cross-sectional area of conductor amasss scope 0.75～185mm2
The diameter range of described tin-coated copper monofilament is 0.193～0.500mm；
Described conductor is multiple strand configuration conductor；Strand lay ratio is not more than 25 times, and strand internal layer lay ratio is not more than 20 times again, multiple strand
Outer layer lay ratio is not more than 12 times, and strand Shu Heyu twists direction again and is left-hand.
Flat power cable the most according to claim 1, is characterized in that the most overlapping wrapped layer of non-woven fabric structure outside described conductor
Becoming lapping layer, the thickness of this lapping layer is 0.14～0.18mm, and rate of putting up is not less than 20%.
Flat power cable the most according to claim 1, is characterized in that the Insulation Material of described insulating barrier is low-smoke non-halogen flame-retardant
Insulation Material；The thickness range of insulating barrier is 1.0～2.2mm.
Flat power cable the most according to claim 1, is characterized in that described first and second lapping layers are overlapping wrapped
High temperature resistance polyester band, the nominal thickness 0.04mm of polyester belt, rate of putting up is not less than 20%；The temperature resistant grade of high temperature resistance polyester band is
220℃。
Flat power cable the most according to claim 1, is characterized in that described screen layer is tinned copper wire woven shield；Compile
Knit density not less than 80%；
Described tinned copper wire is that " calorizing " prepares tinned copper wire；
A diameter of the 0.18 of described tinned copper wire～0.22mm.
Flat power cable the most according to claim 1, is characterized in that the protective cover material of described oversheath is low-smoke non-halogen flame-retardant
Elastomeric material；Extruding nominal thickness is 4.1mm, and average thickness is not less than nominal value, and thinnest part thickness should be thick not less than nominal
The 85%-0.1mm of degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620590840.2U CN205810467U (en) | 2016-06-16 | 2016-06-16 | Flat power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620590840.2U CN205810467U (en) | 2016-06-16 | 2016-06-16 | Flat power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205810467U true CN205810467U (en) | 2016-12-14 |
Family
ID=58142452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620590840.2U Active CN205810467U (en) | 2016-06-16 | 2016-06-16 | Flat power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205810467U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110739105A (en) * | 2019-09-12 | 2020-01-31 | 浙江中兴电缆有限公司 | improved flat cable manufacturing process |
| CN112447318A (en) * | 2019-08-30 | 2021-03-05 | 矢崎总业株式会社 | Extruded flexible flat cable and wire harness |
-
2016
- 2016-06-16 CN CN201620590840.2U patent/CN205810467U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112447318A (en) * | 2019-08-30 | 2021-03-05 | 矢崎总业株式会社 | Extruded flexible flat cable and wire harness |
| CN112447318B (en) * | 2019-08-30 | 2022-04-19 | 矢崎总业株式会社 | Extruded flexible flat cable and wire harness |
| CN110739105A (en) * | 2019-09-12 | 2020-01-31 | 浙江中兴电缆有限公司 | improved flat cable manufacturing process |
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| GR01 | Patent grant |