CN219642581U - Nuclear power station water pressure reactor 1E-level K3-type 1KV halogen-free low-smoke flame-retardant power cable - Google Patents
Nuclear power station water pressure reactor 1E-level K3-type 1KV halogen-free low-smoke flame-retardant power cable Download PDFInfo
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- CN219642581U CN219642581U CN202320249182.0U CN202320249182U CN219642581U CN 219642581 U CN219642581 U CN 219642581U CN 202320249182 U CN202320249182 U CN 202320249182U CN 219642581 U CN219642581 U CN 219642581U
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- retardant
- halogen
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 31
- 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 29
- 239000000779 smoke Substances 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 29
- 229910052751 metal Inorganic materials 0.000 claims abstract description 29
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000003365 glass fiber Substances 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 239000002131 composite material Substances 0.000 claims description 23
- 239000004020 conductor Substances 0.000 claims description 13
- 239000004033 plastic Substances 0.000 claims description 11
- 229920003023 plastic Polymers 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- YGANSGVIUGARFR-UHFFFAOYSA-N dipotassium dioxosilane oxo(oxoalumanyloxy)alumane oxygen(2-) Chemical compound [O--].[K+].[K+].O=[Si]=O.O=[Al]O[Al]=O YGANSGVIUGARFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052627 muscovite Inorganic materials 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229920000098 polyolefin Polymers 0.000 claims description 4
- 229920006257 Heat-shrinkable film Polymers 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 238000009941 weaving Methods 0.000 claims 1
- 229910052736 halogen Inorganic materials 0.000 abstract description 7
- 150000002367 halogens Chemical class 0.000 abstract description 7
- 230000005672 electromagnetic field Effects 0.000 abstract description 4
- 230000032683 aging Effects 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000009954 braiding Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000009970 fire resistant effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Insulated Conductors (AREA)
Abstract
The utility model provides a 1E-level K3 type 1KV halogen-free low-smoke flame-retardant power cable of a nuclear power station water pressure reactor, which comprises a cable core and an insulating layer, a shielding layer and a sheath layer outside the cable core, wherein the cable core consists of a plurality of lead units, a filling layer outside the lead units and a wrapping layer, the cable also comprises a glass fiber layer, a flame-retardant oxygen-insulating layer and a metal armor layer, and the shielding layer, the insulating layer, the glass fiber layer, the metal armor layer, the flame-retardant oxygen-insulating layer and the sheath layer are sequentially arranged outside the wrapping layer; the metal armor is bilayer structure, including outside steel wire armor and inside copper wire armor. The utility model has better electromagnetic field resistance, low smoke zero halogen flame retardance and fire resistance, double functions of interference resistance and shielding, and the cable has the performances of low smoke zero halogen flame retardance and fire resistance and the like. The cable has the characteristics of wide temperature range, softness, wear resistance and the like, is environment-friendly and pollution-free, and has stable electrical performance, good ageing resistance and long service life in the nuclear power station environment.
Description
Technical Field
The utility model relates to the field of power cables, in particular to a 1E-level K3-type 1KV halogen-free low-smoke flame-retardant power cable for a water pressure reactor of a nuclear power station.
Background
For a long time in China, the energy structure mainly based on coal cannot be suitable for the rapid development of economy, and serious social energy and environmental problems are caused. And under a plurality of novel energy conditions, the energy is limited by natural conditions such as environment, geography, climate and the like, so that large-scale production cannot be realized. Nuclear energy is the only energy source currently used for industrial application and can replace fossil fuel on a large scale. The nuclear power is used as a clean energy source, and has important strategic significance for meeting the requirements of Chinese electric power, optimizing an energy structure, reducing environmental pollution and promoting the sustainable development of economic energy. The transmission of electrical energy requires cables, which are not replaceable for use in nuclear power systems.
The insulation and sheathing materials of common power cables are typically polyvinyl chloride, crosslinked polyolefin, etc., which can rapidly age until the cable fails in the event of cable overload or high temperature conditions, etc. Currently, the existing class 1E class K3 cable for nuclear power plants is a cable that is laid outside the enclosure and performs its prescribed functions under normal and seismic loads and under and after accident conditions.
So the K3 cable not only ensures that the product has excellent cable insulation performance, but also has higher strength on the inner part and the outer part besides ensuring that the product has low smoke, zero halogen and flame retardant combustion characteristics. However, the control cable for the nuclear power station has poor anti-interference capability and weather resistance and short service life, and once the control cable fails, the control cable brings great risks to the safe operation of the nuclear power station. How to ensure the safe use of the cable in the nuclear power station environment, has strong anti-interference capability, eliminates potential safety hazards, protects and other equipment from being damaged, and is always a problem of industry exploration.
Disclosure of Invention
The utility model provides a 1E-level K3-type 1KV halogen-free low-smoke flame-retardant power cable of a nuclear power station water pressure reactor, which has better electromagnetic field resistance, flame retardance, fire resistance, damage resistance and the like.
The technical scheme of the utility model is realized as follows: the 1E-level K3 type 1KV halogen-free low-smoke flame-retardant power cable comprises a cable core and an insulating layer, a shielding layer and a sheath layer outside the cable core, wherein the cable core consists of a plurality of lead units, a filling layer outside the lead units and a wrapping layer, the cable further comprises a glass fiber layer, a flame-retardant oxygen-insulating layer and a metal armor layer, and the shielding layer, the insulating layer, the glass fiber layer, the metal armor layer, the flame-retardant oxygen-insulating layer and the sheath layer are sequentially arranged outside the wrapping layer; the metal armor is bilayer structure, including outside steel wire armor and inside copper wire armor.
Preferably, the insulating layer comprises an inner insulating layer and an outer insulating layer, the inner insulating layer is arranged in the cable core, and the outer insulating layer covers the outside of the shielding layer.
Preferably, the wire unit comprises a conductor, an inner insulating layer and a composite belt layer, wherein the composite belt layer is externally provided with a filling layer wrapping the composite belt layer, and the filling layer is externally wrapped by a wrapping layer.
Preferably, a calcined muscovite tape layer is further provided between the conductor and the inner insulating layer.
Preferably, the composite belt layer is a metal plastic composite layer, a double-sided copper plastic composite belt is adopted, the middle is a metal layer, and plastic layers are coated on two sides of the metal layer.
Preferably, the inner insulating layer is a heat-shrinkable film tape, and the outer insulating layer is made of a radiation-resistant low-smoke halogen-free flame-retardant crosslinked polyolefin material.
Preferably, the shielding layer is a tinned copper wire braided shielding material with a braiding density of more than 85%.
Preferably, the outer layer of the metal armor layer is a thicker steel wire armor layer, and the inner layer is a thinner copper wire armor layer.
Compared with the prior art, the utility model has the advantages that: the fire-retardant cable has better electromagnetic field resistance, low smoke zero halogen fire resistance and can still execute the specified functions under normal conditions and under safe shutdown earthquake load. The cable has the dual functions of anti-interference and shielding, and has the performances of low smoke, zero halogen, flame retardance, fire resistance and the like.
The device has stronger resistance and protection capability to the external electric and magnetic field fault interference, and can better execute or support three basic safety functions of reactivity control, waste heat removal and radioactivity containment, and prevent and relieve accidents. The problem that a common cable is not fire-resistant to the cable is solved. The cable has flame retardant property and higher safety. Even if combustion occurs, the gas generated by the cable is low smoke and nontoxic, and the evacuation of people is strived for time.
The outside of the insulating layer of each conductor is coated with a calcined muscovite tape layer, an inner insulating layer, a metal plastic composite tape layer and a double-layer protective metal armor layer, so that the strength of the k3 cable is guaranteed. The cable has the advantages that the conductors are protected, the mechanical performance of the cable is enhanced, meanwhile, the shielding effect is achieved, and electromagnetic wave interference between the conductors is prevented; the shielding layer made of the tinned copper wire braided shielding material has the characteristics of corrosion resistance and oxidation resistance, and the tinned layer enhances the corrosion resistance and shielding performance of the shielding layer; the double-layer shielding of different materials is adopted to enhance the anti-interference capability of the cable, and the two layers are complementary in the anti-electromagnetic wave range; the outer insulating layer and the sheath layer are both made of low-smoke halogen-free silicone rubber for nuclear power, and the cable has the characteristics of wide temperature range, softness, wear resistance and the like, is environment-friendly and pollution-free, and has stable electrical performance, good ageing resistance and long service life under the environment of a nuclear power station.
Drawings
FIG. 1 is a schematic cross-sectional structure of the present utility model.
In the figure: 1. a conductor; 2. calcining the muscovite tape layer; 3. an inner insulating layer; 4. a composite tape layer; 5. a filling layer; 6. wrapping the layer; 7. a shielding layer; 8. an outer insulating layer; 9. a glass fiber layer; 10. a metal armor layer; 11. a flame retardant oxygen barrier layer; 12. and a sheath layer.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples: referring to fig. 1, a 1E-level K3 class 1KV halogen-free low-smoke flame-retardant power cable of a nuclear power station water pressure reactor comprises a cable core and an insulating layer, a shielding layer 7 and a sheath layer 12 outside the cable core, wherein the cable core consists of a plurality of lead units, a filling layer 5 outside the lead units and a wrapping layer 6, the cable further comprises a glass fiber layer 9, a flame-retardant oxygen-isolating layer 11 and a metal armor layer 10, and the shielding layer 7, the insulating layer, the glass fiber layer 9, the metal armor layer 10, the flame-retardant oxygen-isolating layer 11 and the sheath layer 12 are sequentially arranged outside the wrapping layer 6; the metal armor 10 has a double-layer structure, and comprises an external steel wire armor and an internal copper wire armor.
Preferably, the insulation layers comprise an inner insulation layer 3 and an outer insulation layer 8, the inner insulation layer 3 being arranged inside the cable core and the outer insulation layer 8 being covered outside the shielding layer 7.
Preferably, the wire unit comprises a conductor 1, an inner insulating layer 3 and a composite tape layer 4, wherein a filling layer 5 wrapping the composite tape layer 4 is arranged outside the composite tape layer, and a wrapping layer 6 is wrapped outside the filling layer 5.
Preferably, a calcined muscovite tape layer 2 is further provided between the conductor 1 and the inner insulating layer 3.
The outside of the insulating layer of each conductor 1 is coated with the calcined muscovite tape layer 2, the inner insulating layer 3 and the metal plastic composite tape layer 4, so that the conductors 1 are protected, the mechanical performance of the cable is enhanced, and meanwhile, the shielding effect is achieved, and the electromagnetic wave interference between the conductors 1 is prevented.
Preferably, the composite belt layer 4 is a metal plastic composite layer, a double-sided copper plastic composite belt is adopted, a metal layer is arranged in the middle, and plastic layers are coated on two sides of the metal layer.
Preferably, the inner insulating layer 3 is a heat-shrinkable film tape, and the outer insulating layer 8 is made of a radiation-resistant low-smoke halogen-free flame-retardant crosslinked polyolefin material.
Preferably, the shielding layer 7 is a tin-plated copper wire braided shielding material with a braiding density of more than 85%.
The shielding layer 7 made of the tinned copper wire braided shielding material has the characteristics of corrosion resistance and oxidation resistance, and the tinned layer enhances the corrosion resistance and shielding performance of the shielding layer 7; the double-layer shielding of different materials enhances the anti-interference capability of the cable and complements each other in the anti-electromagnetic wave range.
The outer layer of the metal armor layer 10 is a thicker steel wire armor layer, and the inner layer is a thinner copper wire armor layer. The steel wire armor can bear outside great impact and horizontal tearing, and protection K3 class cable is difficult to be bumped and tear, and the copper wire armor can play supplementary and cushioning effect to the steel wire armor, and the double-deck protection effect of metal armor 10 is better.
The outer insulating layer 8 and the sheath layer 12 are both made of low-smoke halogen-free silicone rubber for nuclear power, have the characteristics of wide temperature range, softness, wear resistance and the like, and are environment-friendly and pollution-free, so that the cable has stable electrical performance, good ageing resistance and long service life in the nuclear power station environment.
The utility model has better electromagnetic field resistance, low smoke zero halogen flame retardance and fire resistance, and can still execute the specified functions under normal conditions and under safe shutdown earthquake load. The cable has the dual functions of anti-interference and shielding, and has the performances of low smoke, zero halogen, flame retardance, fire resistance and the like.
The utility model has stronger resistance and protection capability to the interference of external electric and magnetic field faults, can better execute or support three basic safety functions of reactivity control, waste heat removal and radioactivity containment, and prevents and relieves accidents. The problem that a common cable is not fire-resistant to the cable is solved. The cable has flame retardant property and higher safety. Even if combustion occurs, the gas generated by the cable is low smoke and nontoxic, and the evacuation of people is strived for time.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (8)
1. The utility model provides a fire-retardant power cable of nuclear power station water pressure heap 1E level K3 class 1KV halogen-free low smoke, includes cable core and outside insulating layer, shielding layer and restrictive coating, its characterized in that: the cable core consists of a plurality of wire units, a filling layer and a wrapping layer outside the wire units, and further comprises a glass fiber layer, a flame-retardant oxygen-insulating layer and a metal armor layer, wherein the shielding layer, an insulating layer, the glass fiber layer, the metal armor layer, the flame-retardant oxygen-insulating layer and a sheath layer are sequentially arranged outside the wrapping layer; the metal armor is bilayer structure, including outside steel wire armor and inside copper wire armor.
2. The 1-KV halogen-free low-smoke flame-retardant power cable of the 1E-class K3 class of the hydraulic reactor of the nuclear power plant according to claim 1, wherein the power cable is characterized in that: the insulating layer comprises an inner insulating layer and an outer insulating layer, the inner insulating layer is arranged in the cable core, and the outer insulating layer covers the outside of the shielding layer.
3. The 1E stage K3 class 1KV halogen-free low smoke flame retardant power cable of a nuclear power plant water pressure reactor of claim 2, wherein the power cable is characterized by: the wire unit comprises a conductor, an inner insulating layer and a composite belt layer, wherein a filling layer wrapping the composite belt layer is arranged outside the composite belt layer, and a wrapping layer wraps the composite belt layer outside the filling layer.
4. A nuclear power plant water pressure reactor 1E grade K3 class 1KV halogen-free low smoke flame retardant power cable according to claim 3, characterized in that: and a calcined muscovite tape layer is arranged between the conductor and the inner insulating layer.
5. The 1-KV halogen-free low-smoke flame-retardant power cable for 1E-class K3 class of nuclear power station water pressure reactor of claim 4, wherein the power cable is characterized by: the composite belt layer is a metal plastic composite layer, a double-sided copper plastic composite belt is adopted, a metal layer is arranged in the middle of the composite belt layer, and plastic layers are coated on two sides of the metal layer.
6. The 1-E class K3 class 1KV halogen-free low-smoke flame-retardant power cable of the nuclear power plant water pressure reactor of claim 5, wherein the power cable comprises: the inner insulating layer is a heat-shrinkable film belt, and the outer insulating layer is made of radiation-resistant low-smoke halogen-free flame-retardant crosslinked polyolefin material.
7. The 1-E class K3 class 1KV halogen-free low-smoke flame-retardant power cable of the hydraulic reactor of the nuclear power plant according to claim 6, wherein the power cable is characterized by: the shielding layer is made of tin-plated copper wires with the weaving density of more than 85%.
8. The 1-E class K3 class 1KV halogen-free low-smoke flame retardant power cable of the nuclear power plant water pressure reactor of claim 7, wherein the power cable comprises: the outer layer of the metal armor layer is a thicker steel wire armor layer, and the inner layer is a thinner copper wire armor layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320249182.0U CN219642581U (en) | 2023-02-16 | 2023-02-16 | Nuclear power station water pressure reactor 1E-level K3-type 1KV halogen-free low-smoke flame-retardant power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320249182.0U CN219642581U (en) | 2023-02-16 | 2023-02-16 | Nuclear power station water pressure reactor 1E-level K3-type 1KV halogen-free low-smoke flame-retardant power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219642581U true CN219642581U (en) | 2023-09-05 |
Family
ID=87815608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320249182.0U Active CN219642581U (en) | 2023-02-16 | 2023-02-16 | Nuclear power station water pressure reactor 1E-level K3-type 1KV halogen-free low-smoke flame-retardant power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219642581U (en) |
-
2023
- 2023-02-16 CN CN202320249182.0U patent/CN219642581U/en active Active
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