CN206098030U - Simple and convenient 60 year life -span of technology medium voltage power cable for nuclear power station - Google Patents
Simple and convenient 60 year life -span of technology medium voltage power cable for nuclear power station Download PDFInfo
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- CN206098030U CN206098030U CN201620459746.3U CN201620459746U CN206098030U CN 206098030 U CN206098030 U CN 206098030U CN 201620459746 U CN201620459746 U CN 201620459746U CN 206098030 U CN206098030 U CN 206098030U
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Abstract
The utility model provides a simple and convenient 60 year life -span of technology medium voltage power cable for nuclear power station which the structure is: ab intra and be cable core, copper strip shielding layer and sheath outward in proper order, the cable core is the fire -retardant packing of low smoke and zero halogen and the transposition of duo gen sinle silk constitutes, or the cable core is single sinle silk and constitutes, the structure of every sinle silk does: ab intra and be conductor, conductor shield, insulating layer and insulation screen outward in proper order, the conductor comprises the tinned copper wire transposition, the direction of lay of tinned copper wire is opposite with many sinle silk direction of lay, copper strip shielding layer constitutes copper strip shielding layer around the copper clad area outside the cable core, the copper strip shielding layer fire -retardant thermoplasticity of crowded package low smoke and zero halogen outward protects material constitution sheath. After adopting above -mentioned scheme, medium voltage power cable's life reached more than 60 years for the nuclear power station, and simple structure, radiation resistance nature is good, processing property is good, the production technology is simple and convenient.
Description
Technical field
The utility model is related to a kind of medium-pressure power cable, more particularly to a kind of medium-voltage power cable used in nuclear, is suitable for
In rated voltage 6/10kV, 8.7/15kV, the power cable of 12/20kV, belong to field of cable technology.
Background technology
Conventional three generations's medium-voltage power cable used in nuclear, mainly using rubber insulation, eraser sheath scheme, external diameter is big, weight
Amount is big, poor processability, high cost, and it is unfavorable all to exist to the design of whole nuclear power station.For deficiency set forth above, in the urgent need to
Research and develop 60 year easy life-span medium-voltage power cable used in nuclear of a kind of little, lightweight external diameter, low cost, processing technology.
Utility model content
The technical problem to be solved
Conventional three generations's medium-voltage power cable used in nuclear, mainly using rubber insulation, eraser sheath scheme, external diameter is big, weight
Amount is big, poor processability, high cost, and it is unfavorable all to exist to the design of whole nuclear power station.For deficiency set forth above, in the urgent need to
Research and develop 60 year easy life-span medium-voltage power cable used in nuclear of a kind of little, lightweight external diameter, low cost, processing technology.
The technical scheme adopted to solve technical problem
For defect present in prior art, the utility model provides a kind of medium-pressure power cable, the medium voltage electricity electricity
Cable disclosure satisfy that 60 years service life；The stable performance under high temperature or low temperature environment, heat-resisting old and high dosage irradiation ageing properties
It is excellent；Structurally flexible, mounting and installation are convenient；Simple structure, external diameter is little, lightweight, low cost, processing characteristics easy.To realize
Above-mentioned technical purpose, the utility model is employed the following technical solutions：
A kind of 60 year life-span medium-voltage power cable used in nuclear of simple process, its structure is：From-inner-to-outer is followed successively by cable
Core, copper strip shielding layer and sheath；The cable core is low-smoke halogen-free flame retardant filler strip and the stranded composition of Duo Gen cores；Or, cable
Core is single core composition；The structure of every core is：From-inner-to-outer is followed successively by conductor, conductor shield, insulating barrier and insulation
Screen layer；The conductor is constituted by tinned copper wire is stranded；The direction of lay of tinned copper wire is contrary with many core direction of lays；
The material for constituting conductor shield is chemical crosslinking semiconductive inner shield material (EVA).Insulating barrier extrudes low-smoke non-halogen flame-retardant
The insulating barrier that the material of resistance to irradiation crosslinked polyolefin insulating is constituted is (for example：HFDB4201EC)；Constitute being of material of insulation screen
Learn crosslinking semi-conductive insulation shield material (EVA).The copper strip shielding layer is to constitute copper strip shielding layer in the outer wrapped copper strips of cable core；Copper
Low-smoke halogen-free flame-retardant thermoplastic shield material is extruded outside band screen layer and constitutes sheath.
Further, the core is conductor outer three-layer co-extruded conductor shield, insulating barrier and insulation screen.
Further, the number of the core is 1～3；
Constitute the filament diameter scope 3.03mm～9.10mm of the tinned copper wire of conductor；Conductor diameter scope be 8.2mm～
30.3mm；The minimum thickness of conductor shield is 0.6mm；The minimum thickness of insulation screen is 0.6mm.
Further, low-smoke halogen-free flame retardant filler strip is optional：Dustless mineral wool rope.
Further, the thickness range of the copper strip shielding layer：0.10mm-0.15mm；The copper strip shielding layer is tin-coated copper
Band screen layer.
Further, the minimum thickness of the sheath is 1.8mm.Low-smoke halogen-free flame-retardant thermoplastic protective cover material can select polyene
Hydrocarbon material, for example：HW160-6.
Beneficial effect
After above-mentioned technical proposal, the utility model has the advantages that：
(1) Cable Construction Design advantages of simple；Cable conductor includes multiple conducting wires, multiple conducting wires concentric stranding so that electricity
Cable softness simultaneously has good anti-corrosive properties；It is stranded better and whole cable core processing is more convenient.
(2) the tinned copper wire conductor after stranded, improves the electric conductivity of conductor, makes conductor soft and is hardly damaged.It is tin plating
Layer has anti-corrosion function.
(3) using copper strip shielding layer, the anti-oxidant, life-span is longer, less damaged, prevents the aging ability insulated with sheath
By force, Radiation hardness becomes strong.
(4) low-smoke halogen-free flame retardant filler strip, low-smoke halogen-free flame-retardant thermoplastic sheath cause cable low-smoke non-halogen flame-retardant performance
More preferably.
(5) low-smoke halogen-free flame-retardant thermoplastic sheath makes the resistance to nuclear radiation of cable, resistance to long term heat ageing, improves cable and uses the longevity
Life.
(6) crosslinked polyetylene insulated, the low-smoke halogen-free flame-retardant thermoplastic sheath of low-smoke non-halogen flame-retardant makes the construction of cable more
Softness, more flexible, external diameter is less, and weight is lighter, more convenient and be suitable to nuclear power station narrow regions and use.
(7) layer of resistance to irradiation crosslinked polyolefin insulating of low-smoke non-halogen flame-retardant, low-smoke halogen-free flame-retardant thermoplastic sheath make cable
Cost is cheaper, processes easier.
(8) this cable, conductor service life under 90 DEG C of hot conditions is 60 years.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：1st, conductor, 2, conductor shield, 3, insulating barrier, 4, insulation screen, 5, copper strip shielding layer, 6, sheath.
Specific embodiment
As shown in figure 1, a kind of 60 year life-span medium-voltage power cable used in nuclear of simple process, its structure is：From interior and
Cable core, copper strip shielding layer and sheath are followed successively by outward；The cable core is low-smoke halogen-free flame retardant filler strip and the stranded composition of Duo Gen cores；
Or, cable core is single core composition；The structure of every core is：From-inner-to-outer is followed successively by conductor, conductor shield, insulation
Layer and insulation screen；The conductor is constituted by tinned copper wire is stranded；The direction of lay of tinned copper wire is stranded with many cores
It is in opposite direction；The material for constituting conductor shield is chemical crosslinking semiconductive inner shield material (EVA).Insulating barrier be extrude low cigarette without
The insulating barrier that the fire-retardant material of resistance to irradiation crosslinked polyolefin insulating of halogen is constituted is (for example：HFDB4201EC)；Constitute insulation screen
Material is chemical crosslinking semi-conductive insulation shield material (EVA).The copper strip shielding layer is to constitute copper strips in the outer wrapped copper strips of cable core
Screen layer；Low-smoke halogen-free flame-retardant thermoplastic shield material is extruded outside copper strip shielding layer and constitutes sheath.
The core is conductor outer three-layer co-extruded conductor shield, insulating barrier and insulation screen.The number of the core
It is 1～3；Constitute the filament diameter scope 3.03mm～9.10mm of the tinned copper wire of conductor；Conductor diameter scope be 8.2mm～
30.3mm；The minimum thickness of conductor shield is 0.6mm；The minimum thickness of insulation screen is 0.6mm.Low-smoke non-halogen flame-retardant is filled out
Fill bar optional：Dustless mineral wool rope.The thickness range of the copper strip shielding layer：0.10mm-0.15mm；The copper strip shielding layer is plating
Tin copper strip shielding layer.The minimum thickness of the sheath is 1.8mm.Low-smoke halogen-free flame-retardant thermoplastic protective cover material can select polyolefin
Material, for example：HW160-6.
Conductor improves the electric conductivity of conductor using the tinned copper wire conductor after stranded, makes conductor soft and is hardly damaged.
Restrictive coating is low cigarette, Halogen, the fire-retardant polyolefine material of resistance to irradiation, and Radiation hardness becomes strong.Copper strip shielding layer adopts copper strips screen
Layer is covered, the anti-oxidant, life-span is longer, less damaged, prevent from insulating and the aging ability of sheath is strong, Radiation hardness becomes strong.
After such scheme, the service life of medium-voltage power cable used in nuclear reaches more than 60 years, and simple structure,
Flouride-resistani acid phesphatase is good, good processability, production technology easy.
The utility model is not limited to above-described embodiment, and all technical schemes formed using equivalent or equivalence replacement each fall within this
The protection domain that utility model is required.
Claims (4)
1. a kind of 60 year life-span medium-voltage power cable used in nuclear of simple process, is characterized in that structure is：From-inner-to-outer is successively
For cable core, copper strip shielding layer and sheath；
The cable core is low-smoke halogen-free flame retardant filler strip and the stranded composition of Duo Gen cores；Or, cable core is single core composition；
The structure of every core is：From-inner-to-outer is followed successively by conductor, conductor shield, insulating barrier and insulation screen；
The conductor is constituted by tinned copper wire is stranded；The direction of lay of tinned copper wire is contrary with many core direction of lays；Plating
The filament diameter scope of tin copper wire is 3.03mm～9.10mm；Conductor diameter scope is 8.2mm～30.3mm；
Constitute conductor shield is chemical crosslinking semiconductive inner shield material；The minimum thickness of conductor shield is 0.6mm；
Insulating barrier is to extrude the insulating barrier that the material of resistance to irradiation crosslinked polyolefin insulating of low-smoke non-halogen flame-retardant is constituted；
Constitute insulation screen is chemical crosslinking semi-conductive insulation shield material；The minimum thickness of insulation screen is 0.6mm；
The copper strip shielding layer is to constitute copper strip shielding layer in the outer wrapped copper strips of cable core；Low smoke and zero halogen resistance is extruded outside copper strip shielding layer
Combustion thermoplasticity shield material constitutes sheath；
The thickness range of the copper strip shielding layer：0.10mm-0.15mm；The minimum thickness of the sheath is 1.8mm；
The copper strip shielding layer is tin-coated copper strip screen layer.
2. medium-pressure power cable according to claim 1, is characterized in that the core for the outer three-layer co-extruded conductor screen of conductor
Cover layer, insulating barrier and insulation screen.
3. medium-pressure power cable according to claim 1, the number that it is characterized in that the core is 1～3.
4. medium-pressure power cable according to claim 1, is characterized in that low-smoke halogen-free flame retardant filler strip is dustless mineral wool rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620459746.3U CN206098030U (en) | 2016-05-19 | 2016-05-19 | Simple and convenient 60 year life -span of technology medium voltage power cable for nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620459746.3U CN206098030U (en) | 2016-05-19 | 2016-05-19 | Simple and convenient 60 year life -span of technology medium voltage power cable for nuclear power station |
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| Publication Number | Publication Date |
|---|---|
| CN206098030U true CN206098030U (en) | 2017-04-12 |
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ID=58471235
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620459746.3U Active CN206098030U (en) | 2016-05-19 | 2016-05-19 | Simple and convenient 60 year life -span of technology medium voltage power cable for nuclear power station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110136870A (en) * | 2019-07-02 | 2019-08-16 | 东方交联电力电缆有限公司 | A kind of magnetic suspension system high direct voltage aluminium alloy cable |
-
2016
- 2016-05-19 CN CN201620459746.3U patent/CN206098030U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110136870A (en) * | 2019-07-02 | 2019-08-16 | 东方交联电力电缆有限公司 | A kind of magnetic suspension system high direct voltage aluminium alloy cable |
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