CN107464624A - It is crosslinked energy saving and environment friendly power cable - Google Patents
It is crosslinked energy saving and environment friendly power cable Download PDFInfo
- Publication number
- CN107464624A CN107464624A CN201610391945.XA CN201610391945A CN107464624A CN 107464624 A CN107464624 A CN 107464624A CN 201610391945 A CN201610391945 A CN 201610391945A CN 107464624 A CN107464624 A CN 107464624A
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- environment friendly
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/186—Sheaths comprising longitudinal lapped non-metallic layers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/22—Metal wires or tapes, e.g. made of steel
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
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- Insulated Conductors (AREA)
Abstract
One kind is crosslinked energy saving and environment friendly power cable, the cable core formed including the twisted winding belting layer of more insulated wire cores, inner liner, armor and external sheath layer are enclosed with successively from the inside to the outside outside cable core, in insulated wire cores, molded line monofilament is twisted circular copper conductors and is wrapped with high-temperature resistant irradiation cross fire retardant polyolefin insulating barrier；Belting layer is that two layers of left-hand is overlapping around the high fire-retardance band being wrapped in outside cable core；Inner liner is that two layers of left-hand is overlapping around the polyester belt lapping layer being wrapped in outside belting layer；Armor is aluminum alloy strip lock armo structure；External sheath layer is to have the flame-retardant polyolefin sheathed layer of low smoke, zero halogen high-temperature resistant irradiation cross.The energy saving and environment friendly power cable of crosslinking provided by the invention; it is higher can to solve existing cable material consumption; overheat overbending is easily damaged; the problem of secondary injury pollutant is produced during burning; with save material, overload capacity strong, LSOH anti-flaming fire resisting, self-lock protection characteristic; cable operation is more safe and reliable, and service life is longer.
Description
Technical field
It is especially a kind of to be crosslinked energy saving and environment friendly power cable the present invention relates to crosslinked cable field.
Background technology
It is also increasing to the demand of power cable with the fast development of China's power construction, and the also more and more higher of the requirement under new economic normality to power cable at present, the energy saving and environment friendly new direction as power cable development.Therefore the application and development of energy saving and environment friendly power cable are particularly important.
But the cross-linked power cable of most enterprises production at present is the power cable of general type, in general performance can only be met, energy-conserving and environment-protective performance is poor, its product structure is followed successively by 1, presses circular copper conductors from inside to outside, 2nd, organosilane crosslinked polyethylene insulation, 3rd, polypropylene filling rope, 4, polypropylene twining package tape, 5, polyvinyl chloride（Polyethylene）Liner, 6, steel-tape armouring, 7, polyvinyl chloride（Polyethylene）Sheath.
The above-mentioned construction of cable is simple, material therefor falls behind, and combination property is general, following defect be present：
1st, for cable conductor to press circular copper conductors, tightening factor is low, and conductor diameter is big, causes rear road each operation waste of raw materials.
2nd, cable insulation is organosilane crosslinked polyethylene insulation, and normal work heat resisting temperature is 90 DEG C, and overload capacity is weaker.
3rd, cable filling rope and band are polypropylene copolymer, its heat-resistant deforming ability, and not fire-retardant not fire resisting.
4th, when cables liner and sheath are polyvinyl chloride insulation, burning produces toxic gas and black smoke, causes secondary injury；Cable liner and sheath do not have flame-retarding characteristic, and bad mechanical property when being polyethylene.
5th, cable armouring is double steel band gaps lapping structure, and cable bendable bilge radius are larger, and do not have auto-lock function, easily cause overbending to damage.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of energy saving and environment friendly power cable of crosslinking; it is higher can to solve existing cable material consumption; overheat overbending is easily damaged; the problem of secondary injury pollutant is produced during burning; excellent performance; with save material, overload capacity strong, LSOH anti-flaming fire resisting, self-lock protection characteristic, cable operation is more safe and reliable, and service life is longer.
In order to solve the above technical problems, the technical solution adopted in the present invention is：One kind is crosslinked energy saving and environment friendly power cable, including the cable core that the twisted winding belting layer of more insulated wire cores forms, and inner liner, armor and external sheath layer are enclosed with successively from the inside to the outside outside cable core,
In insulated wire cores, molded line monofilament is twisted circular copper conductors and is wrapped with high-temperature resistant irradiation cross fire retardant polyolefin insulating barrier, and the gap between each insulated wire cores is filled with asbestos gasket for packing；
Belting layer is that two layers of left-hand is overlapping is not less than 15% around the high fire-retardance band being wrapped in outside cable core, Duplication；
Inner liner is that two layers of left-hand is overlapping is not less than 50% around the polyester belt lapping layer being wrapped in outside belting layer, Duplication；
Armor is aluminum alloy strip lock armo structure；
External sheath layer is to have the flame-retardant polyolefin sheathed layer of low smoke, zero halogen high-temperature resistant irradiation cross.
High-temperature resistant irradiation cross fire retardant polyolefin insulating barrier is can insulating barrier made of irradiation crosslinked polyolefin insulating material using 150 DEG C.
The flame-retardant polyolefin sheathed layer of low smoke, zero halogen high-temperature resistant irradiation cross is can restrictive coating made of cross-linking radiation polyolefin jacket material using 125 DEG C of LSOH anti-flamings.
Armor is to use the aluminum alloy strip for pressing into S type structures wrapped in inner liner with interlocking form left-hand（5）The aluminum alloy strip lock armo structure of outer formation.
The energy saving and environment friendly power cable of crosslinking provided by the invention, conductor are twisted circular configuration using molded line monofilament, and tightening factor is up to 95%, and conductor diameter is small, and road each operation raw material usage, cost-effective after reduction；Cable insulation uses 150 DEG C of irradiation crosslinked polyolefin insulatings, and normal work heat resisting temperature is 150 DEG C, and overload capacity is stronger, can carry more Large Copacity, cost-effective instead of bigger specification cable；Gap filling between each insulated wire cores uses asbestos material, and belting layer uses high fire-retardance band, is respectively provided with very strong flame-retardant performance, protects insulating barrier is not burned to destroy；Inner liner uses polyester belt lapping structure, high mechanical strength, and has buffering effect, effectively prevents insulating barrier from being damaged by compression；Armor uses aluminum alloy strip lock armo structure, and cable bendable bilge radius are smaller, and have auto-lock function, effectively prevents cable overbending from damaging；Restrictive coating uses 125 DEG C of LSOH anti-flaming cross-linking radiation polyolefin jackets, has a very strong fire resistance, toxic gas and black smoke, and good mechanical property is not produced during burning, by being detected to cable, the results showed that cable properties meet design requirement.Compared with conventional power cable, structure is novel, and material is advanced, and the electric property and mechanical performance performance of cable are more superior, and has energy-conserving and environment-protective characteristic.The cable, which has, saves the characteristics such as strong material, overload capacity, LSOH anti-flaming fire resisting, self-lock protection.Cable is adapted to laying to be used in modern bustling city in the PE of densely populated place, more energy-conserving and environment-protective, and can prevent the overbending during laying and use, and cable operation is more safe and reliable, and service life is longer.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples：
Fig. 1 is the structural representation of the present invention.
Embodiment
In Fig. 1, one kind is crosslinked energy saving and environment friendly power cable, including the cable core that the twisted winding belting layer 4 of more insulated wire cores forms, and inner liner 5, armor 6 and external sheath layer 7 are enclosed with successively from the inside to the outside outside cable core,
In insulated wire cores, molded line monofilament is twisted circular copper conductors 1 and is wrapped with high-temperature resistant irradiation cross fire retardant polyolefin insulating barrier, and the gap between each insulated wire cores is filled with asbestos gasket for packing 3；
Belting layer 4 is that two layers of left-hand is overlapping is not less than 15% around the high fire-retardance band being wrapped in outside cable core, Duplication；
Inner liner 5 is that two layers of left-hand is overlapping is not less than 50% around the polyester belt lapping layer being wrapped in outside belting layer 4, Duplication；
Armor 6 is aluminum alloy strip lock armo structure；
External sheath layer 7 is to have the flame-retardant polyolefin sheathed layer of low smoke, zero halogen high-temperature resistant irradiation cross.
High-temperature resistant irradiation cross fire retardant polyolefin insulating barrier is can insulating barrier made of irradiation crosslinked polyolefin insulating material using 150 DEG C.
The flame-retardant polyolefin sheathed layer of low smoke, zero halogen high-temperature resistant irradiation cross is can restrictive coating made of cross-linking radiation polyolefin jacket material using 125 DEG C of LSOH anti-flamings.
Armor 6 is to use the aluminum alloy strip for pressing into S type structures with the wrapped aluminum alloy strip lock armo structure formed outside inner liner 5 of interlocking form left-hand.
The quantity of insulated wire cores is four, and red, yellow, green, blue, black insulating barrier color is respectively adopted.
The production process of the present invention is as follows：
1st, the process of conductor 1
Conductor 1 is twisted circular copper conductors structure using molded line monofilament.First, copper bar is manufactured using up-drawing method production line, passes through the copper molded line monofilament of specification needed for the big wire drawing machine drawing of copper.Secondly, it is twisted using more copper molded line monofilament, layer-stranding is carried out by nanometer bunch mould, direction of lay is on the contrary, ensure that the close structure of conductor is stable between adjacent layer.Again, copper conductor of the bunch after twisted is made annealing treatment using annealing furnace, has recovered the superior mechanical performance of copper conductor and electrical property.
2nd, insulating barrier 2 is extruded and is crosslinked
Insulating barrier 2 is extruded
Insulating barrier 2 can irradiation crosslinked polyolefin insulating material using 150 DEG C.Insulating barrier 2 should be equably extruded on conductor 1, and thickness average value should be not less than nominal value, and thinnest point thickness should be not less than the 90% of nominal thickness, and the degree of eccentricity is not more than 10%.Extruding layer surface should be smooth, no wedge angle, particle, phenomena such as burning, abrading.
Crosslinking
The insulated wire cores extruded are wrapped on two rollers of cross-linking radiation production line with ∞ shapes and carry out ultraviolet light irradiation cross-linking.To ensure crosslinking rate and the degree of cross linking, according to line footpath size, insulated wire cores are wound into multi-turn on roller.
3rd, stranding filling and it is wrapped
By insulated wire cores with red, yellow, green, blue, black sequential arrangement dextrad twisted synthesizing cable, asbestos cord dense packing effect is used in stranding gap, left-hand is overlapping to form bag layer 4 around double-baging using the high fire-retardance band of 0.2mm thickness for outer layer, and Duplication is not less than 15%, reaches the effect of cable core rounding.Surface must not have phenomena such as fold, lace, bottom pour ladle.
4th, liner is wrapped
Inner liner 5 uses polyester belt lapping structure.Polyester embroiders to band left-hand is overlapping around double-baging outside cable core, and Duplication is not less than 50%, and surface there must not be phenomena such as fold, lace, bottom pour ladle.5th, lock armo
5th, lock armo
Armor 6 uses aluminum alloy strip lock armo structure.Aluminum alloy strip is pressed into by S type structures by briquetting roller, then wrapped outside inner liner 5 using interlocking form left-hand, arch should seamlessly transit, surface must not jagged, wedge angle phenomena such as.
6th, oversheath is extruded and is crosslinked
External sheath layer 7 can cross-linking radiation polyolefin jacket material using 125 DEG C of LSOH anti-flamings.External sheath layer 7 should be equably extruded on armouring core, and nominal thickness is 0.035 times of+1mm of armouring core external diameter, and thickness average value should be not less than nominal value, and thinnest point thickness should be not less than the 85% of nominal thickness.Extruding layer surface should be smooth, no wedge angle, particle, phenomena such as burning, abrading.
Crosslinking
Sheath core after extruding is wrapped on two rollers of cross-linking radiation production line with ∞ shapes carries out ultraviolet light irradiation cross-linking.To ensure crosslinking rate and the degree of cross linking, according to line footpath size, sheath core is wound into multi-turn on roller.
The invention is made.
Claims (4)
1. one kind is crosslinked energy saving and environment friendly power cable, including the twisted winding belting layer of more insulated wire cores（4）The cable core formed, cable core are enclosed with inner liner successively from the inside to the outside outside（5）, armor（6）And external sheath layer（7）, it is characterised in that：
In insulated wire cores, molded line monofilament is twisted circular copper conductors（1）It is wrapped with high-temperature resistant irradiation cross fire retardant polyolefin insulating barrier, the gap between each insulated wire cores is filled with asbestos gasket for packing（3）；
Belting layer（4）It is not less than 15% around the high fire-retardance band being wrapped in outside cable core, Duplication for two layers of left-hand is overlapping；
Inner liner（5）It is overlapping around being wrapped in belting layer for two layers of left-hand（4）Outer polyester belt lapping layer, Duplication are not less than 50%；
Armor（6）For aluminum alloy strip lock armo structure；
External sheath layer（7）To there is the flame-retardant polyolefin sheathed layer of low smoke, zero halogen high-temperature resistant irradiation cross.
2. the energy saving and environment friendly power cable of crosslinking according to claim 1, it is characterised in that：High-temperature resistant irradiation cross fire retardant polyolefin insulating barrier is can insulating barrier made of irradiation crosslinked polyolefin insulating material using 150 DEG C.
3. the energy saving and environment friendly power cable of crosslinking according to claim 1, it is characterised in that：The flame-retardant polyolefin sheathed layer of low smoke, zero halogen high-temperature resistant irradiation cross is can restrictive coating made of cross-linking radiation polyolefin jacket material using 125 DEG C of LSOH anti-flamings.
4. the energy saving and environment friendly power cable of crosslinking according to claim 1, it is characterised in that：Armor（6）To use the aluminum alloy strip for pressing into S type structures wrapped in inner liner with interlocking form left-hand（5）The aluminum alloy strip lock armo structure of outer formation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610391945.XA CN107464624A (en) | 2016-06-06 | 2016-06-06 | It is crosslinked energy saving and environment friendly power cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610391945.XA CN107464624A (en) | 2016-06-06 | 2016-06-06 | It is crosslinked energy saving and environment friendly power cable |
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| Publication Number | Publication Date |
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| CN107464624A true CN107464624A (en) | 2017-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610391945.XA Pending CN107464624A (en) | 2016-06-06 | 2016-06-06 | It is crosslinked energy saving and environment friendly power cable |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265184A (en) * | 2019-06-05 | 2019-09-20 | 金川集团股份有限公司 | A kind of novel discharge-preventing magnetic reactance interference high-energy irradiation cross-linking type cable |
| CN112489873A (en) * | 2020-11-16 | 2021-03-12 | 四川新蓉电缆有限责任公司 | Special-shaped conductor polypropylene insulation power cable and processing method thereof |
| CN112992437A (en) * | 2021-03-17 | 2021-06-18 | 贵州安众成电线电缆有限公司 | Manufacturing method of insulated halogen-free low-smoke flame-retardant class A power cable |
-
2016
- 2016-06-06 CN CN201610391945.XA patent/CN107464624A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265184A (en) * | 2019-06-05 | 2019-09-20 | 金川集团股份有限公司 | A kind of novel discharge-preventing magnetic reactance interference high-energy irradiation cross-linking type cable |
| CN112489873A (en) * | 2020-11-16 | 2021-03-12 | 四川新蓉电缆有限责任公司 | Special-shaped conductor polypropylene insulation power cable and processing method thereof |
| CN112992437A (en) * | 2021-03-17 | 2021-06-18 | 贵州安众成电线电缆有限公司 | Manufacturing method of insulated halogen-free low-smoke flame-retardant class A power cable |
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171212 |
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| WD01 | Invention patent application deemed withdrawn after publication |