CN219105815U - Low-smoke flame-retardant fire-resistant power cable - Google Patents
Low-smoke flame-retardant fire-resistant power cable Download PDFInfo
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- CN219105815U CN219105815U CN202223559121.9U CN202223559121U CN219105815U CN 219105815 U CN219105815 U CN 219105815U CN 202223559121 U CN202223559121 U CN 202223559121U CN 219105815 U CN219105815 U CN 219105815U
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- retardant
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- flame
- shielding layer
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 57
- 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 48
- 239000000779 smoke Substances 0.000 title claims abstract description 35
- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 21
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 15
- 239000011707 mineral Substances 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 14
- 239000002131 composite material Substances 0.000 claims abstract description 13
- 229920000098 polyolefin Polymers 0.000 claims abstract description 12
- 239000010410 layer Substances 0.000 claims description 70
- 239000004020 conductor Substances 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 9
- 239000000919 ceramic Substances 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 9
- 239000010445 mica Substances 0.000 claims description 8
- 229910052618 mica group Inorganic materials 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 5
- 239000005011 phenolic resin Substances 0.000 claims description 5
- 229920001568 phenolic resin Polymers 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 238000009954 braiding Methods 0.000 claims description 3
- 239000011247 coating layer Substances 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- 239000008397 galvanized steel Substances 0.000 claims description 3
- 229920006264 polyurethane film Polymers 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims 5
- 229910052736 halogen Inorganic materials 0.000 claims 2
- 150000002367 halogens Chemical class 0.000 claims 2
- 239000000463 material Substances 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 239000003513 alkali Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 229920000620 organic polymer Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
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Classifications
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- 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
Abstract
The utility model discloses a low-smoke flame-retardant fire-resistant power cable which comprises an insulating wire core, a cable core and a fireproof mineral flame-retardant rope, wherein the cable core consists of a plurality of insulating wire cores and the fireproof mineral flame-retardant rope, the fireproof mineral flame-retardant rope is filled among the plurality of insulating wire cores, a low-smoke halogen-free flame-retardant layer is wrapped outside the cable core, a metal shielding layer is wrapped outside the low-smoke halogen-free flame-retardant layer, a braided shielding layer is wrapped outside the metal shielding layer, a fireproof composite belt is wrapped outside the braided shielding layer, an armor layer is arranged outside the fireproof composite belt, and a polyolefin outer sheath is extruded outside the armor layer. According to the utility model, through filling the flame-retardant layer and the internal fireproof mineral flame-retardant rope, the flame-retardant and fireproof performance of the cable is improved, the smoke release amount is reduced, and the cable is simple in structure and suitable for popularization.
Description
Technical Field
The utility model relates to the technical field of power cables, in particular to a low-smoke flame-retardant fire-resistant power cable.
Background
In the power system, the cable plays a role in transmitting electric energy, and the electric energy transmitted by the cable is required for industrial production and people's life, so the cable plays an important role in the current society. One of the most important cable properties is the fire resistance and high temperature resistance.
The fire-resistant and high-temperature-resistant performance of the existing cable is generally flame-resistant by taking a simple flame-resistant sheath as a main means, the fire-resistant and high-temperature-resistant performance is poor, an insulating layer and an outer sheath of an insulating wire core which are generally adopted by the existing cable are generally made of organic polymers, and smoke is large when fire burning occurs, so that rescue and use are affected; in addition, the cable fireproof material structure is a single-layer structure, the physical impact resistance protection level is low, the function is single, meanwhile, the fireproof capability of the material is poor, the material cannot be fireproof for a long time, the heat insulation performance is poor under the condition that a combustion object exists in the surrounding environment, the high-temperature protection effect cannot be achieved, and the cable is damaged to cause danger.
Disclosure of Invention
In order to solve the problems in the background technology, a low-smoke flame-retardant fire-resistant power cable is provided.
The utility model is realized by the following technical scheme: the utility model provides a low-smoke flame-retardant fire-resistant power cable which is characterized by comprising an insulating wire core, a cable core and a fireproof mineral flame-retardant rope, wherein the cable core consists of a plurality of insulating wire cores and the fireproof mineral flame-retardant rope, the fireproof mineral flame-retardant rope is filled among the plurality of insulating wire cores, a low-smoke halogen-free flame-retardant layer is wrapped outside the cable core, a metal shielding layer is wrapped outside the low-smoke halogen-free flame-retardant layer, a braided shielding layer is wrapped outside the metal shielding layer, a fireproof composite belt is wrapped outside the braided shielding layer, an armor layer is arranged outside the fireproof composite belt, and a polyolefin outer sheath is extruded outside the armor layer.
Further, the insulating wire core comprises a conductor, a plurality of layers of mica tapes wrapped outside the conductor, and a polyethylene insulating layer extruded outside the plurality of layers of mica tapes.
Further, the braided shielding layer is a double-layer copper belt or tinned copper wire braided net.
Further, the polyolefin outer sheath is a B-level halogen-free low-smoke flame-retardant ceramic polyolefin outer sheath.
Further, the armor layer is formed by braiding galvanized steel wires or tinned steel wires.
Further, the conductor is formed by twisting a plurality of tinned wires and copper wires.
Further, the fireproof composite belt comprises a high-temperature-resistant aluminum silicate fiber belt, wherein a polyurethane film and a phenolic resin layer are sequentially formed on the upper surface of the high-temperature-resistant aluminum silicate fiber belt, and a halogen-free flame-retardant pvc film and a water-based ceramic inorganic coating layer are sequentially formed on the lower surface of the high-temperature-resistant aluminum silicate fiber belt.
Further, the metal shielding layer is an aluminum foil shielding layer.
Compared with the prior art, the utility model has the following beneficial effects:
1. the fireproof layer of the cable is formed by compounding a plurality of fireproof materials, so that the cable has strong fireproof performance, and has the excellent performances of good temperature resistance, acid and alkali corrosion resistance, high heat conductivity coefficient, high insulation, low expansion, stable chemical property, high hardness and the like, and the linear expansion coefficient and the shrinkage rate of a cured product can be reduced, thereby eliminating the internal stress of the cured product and preventing cracking; the phenolic resin layer enables the cable to have excellent heat resistance, flame resistance, water resistance and insulation, good acid resistance, poor alkali resistance and good mechanical and electrical properties; the water-based ceramic inorganic coating is high Wen Erju resistant to high temperature, fireproof, anticorrosion and flame retardant at high temperature, and does not generate toxic and harmful smoke released by the decomposition of the coating; therefore, the fireproof layer can be used as a cable coating material, has better bending resistance and physical strength, and has higher fireproof performance.
2. The shielding layer adopts a mode of combining the metal shielding layer and the woven shielding layer, so that the capability of resisting interference of electromagnetic waves, radio and the like is stronger, and the cable can be used in different environments.
3. According to the utility model, the flame retardant and fire-resistant performance of the cable is improved by the low-smoke halogen-free flame retardant layer and the armor layer, and the outer sheath is the B1-level halogen-free low-smoke flame retardant ceramic polyolefin outer sheath, compared with a simple flame retardant sheath and an insulating layer and an outer sheath made of organic polymers, the flame retardant and fire-resistant performance of the cable is improved, and the smoke release amount in the combustion process is reduced, and the heat release amount is low.
4. The fireproof mineral flame-retardant rope is filled in the cable core, so that the fireproof flame-retardant performance is improved, and the normal and stable operation of the insulating cable core is ensured.
Drawings
FIG. 1 is a schematic view of the overall cross-sectional structure of the present utility model;
FIG. 2 is a schematic diagram of a cross-sectional structure of an insulated wire core according to the present utility model;
fig. 3 is a schematic structural view of a fire-resistant composite belt.
1. An insulated wire core; 2. a cable core; 11. a conductor; 12. a multilayer mica tape; 13. a polyethylene insulating layer; 3. fireproof mineral flame-retardant ropes; 4. a low smoke halogen-free flame retardant layer; 5. a metal shielding layer; 6. braiding a shielding layer; 7. a fire resistant composite tape; 8. an armor layer; 9. a polyolefin outer sheath.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The low-smoke flame-retardant fire-resistant power cable comprises an insulating wire core 1, a cable core 2 and a fireproof mineral flame-retardant rope 3, wherein the cable core 2 consists of a plurality of insulating wire cores 1 and the fireproof mineral flame-retardant rope 3, the fireproof mineral flame-retardant rope 3 is filled among the plurality of insulating wire cores 1, a low-smoke halogen-free flame-retardant layer 4 is arranged outside the cable core 2 in a wrapping mode, a metal shielding layer 5 is arranged outside the low-smoke halogen-free flame-retardant layer 4 in a wrapping mode, a braided shielding layer 6 is arranged outside the metal shielding layer 5 in a wrapping mode, a fireproof composite belt 7 is arranged outside the braided shielding layer 6 in a wrapping mode, an armor layer 8 is arranged outside the fireproof composite belt 7, and a polyolefin outer sheath 9 is extruded outside the armor layer 8 in a wrapping mode.
In this embodiment, specific: the insulated wire core 1 comprises a conductor 11, a plurality of layers of mica tapes 12 wrapped outside the conductor 11 and a polyethylene insulating layer 13 extruded outside the plurality of layers of mica tapes 12, wherein the plurality of layers of mica tapes 12 can provide flame retardant and fireproof capabilities for the insulated wire core 1.
In this embodiment, specific: the braided shielding layer 6 is a double-layer copper strip or tinned copper wire braided net, and the shielding layer adopts a mode that the metal shielding layer 5 is combined with the braided shielding layer 6, so that the capability of resisting interference of electromagnetic waves, radio and the like is stronger, and the cable can be used in different environments.
In this embodiment, specific: the polyolefin outer sheath 9 is a B1-level halogen-free low-smoke flame-retardant ceramic polyolefin outer sheath, so that the flame retardance and fire resistance of the cable are improved, the smoke release amount in the combustion process is reduced, and the heat release amount is low.
In this embodiment, specific: the armor layer 8 is woven from galvanized steel wires or tinned steel wires.
In this embodiment, specific: the conductor 11 is formed by twisting a plurality of tin-plated wires and copper wires.
As shown in fig. 3, in this embodiment, specifically: the fireproof composite belt 7 comprises a high-temperature-resistant aluminum silicate fiber belt 71, wherein a polyurethane film 72 and a phenolic resin layer 73 are sequentially formed on the upper surface of the high-temperature-resistant aluminum silicate fiber belt, a halogen-free flame-retardant pvc film 74 and a water-based ceramic inorganic coating layer 75 are sequentially formed on the lower surface of the high-temperature-resistant aluminum silicate fiber belt, and the fireproof layer is formed by compounding a plurality of fireproof materials, so that the cable has the advantages of high fireproof performance, high temperature resistance, acid and alkali corrosion resistance, high heat conductivity, high insulation, low expansion, stable chemical performance, high hardness and the like, and can reduce the linear expansion coefficient and the shrinkage rate of a cured product, thereby eliminating the internal stress of the cured product and preventing cracking; the phenolic resin layer enables the cable to have excellent heat resistance, flame resistance, water resistance and insulation, good acid resistance, poor alkali resistance and good mechanical and electrical properties; the water-based ceramic inorganic coating is high Wen Erju resistant to high temperature, fireproof, anticorrosion and flame retardant at high temperature, and does not generate toxic and harmful smoke released by the decomposition of the coating; therefore, the fireproof layer can be used as a cable coating material, has better bending resistance and physical strength, and also has higher fireproof and waterproof properties.
In this embodiment, specific: the metal shielding layer 5 is an aluminum foil shielding.
The above examples are merely illustrative of the preferred embodiments of the present utility model and are not intended to limit the spirit and scope of the present utility model. Various modifications and improvements of the technical scheme of the present utility model will fall within the protection scope of the present utility model without departing from the design concept of the present utility model, and the technical content of the present utility model is fully described in the claims.
Claims (8)
1. The utility model provides a fire-retardant fire-resistant power cable of low smoke and zero fire-retardant, its characterized in that, including insulating sinle silk (1), cable core (2) and fire prevention mineral fire-retardant rope (3), cable core (2) are constituteed by a plurality of insulating sinle silk (1) and fire prevention mineral fire-retardant rope (3), fire prevention mineral fire-retardant rope (3) are filled a plurality of between insulating sinle silk (1), cable core (2) outside is around the package and is provided with low smoke and zero halogen fire-retardant layer (4), low smoke and zero halogen fire-retardant layer (4) outside is around the package and is had metal shielding layer (5), metal shielding layer (5) outside is around the package and is had establishment shielding layer (6), establishment shielding layer (6) outside is around the package and is had fire prevention composite tape (7), fire prevention composite tape (7) outside is equipped with armor (8), the outside crowded package of armor (8) has polyolefin oversheath (9).
2. A low smoke, flame retardant and fire resistant power cable according to claim 1, wherein: the insulated wire core (1) comprises a conductor (11), a plurality of layers of mica tapes (12) wrapped outside the conductor (11) and a polyethylene insulating layer (13) extruded outside the plurality of layers of mica tapes (12).
3. A low smoke, flame retardant and fire resistant power cable according to claim 1, wherein: the braided shielding layer (6) is a double-layer copper belt or tinned copper wire braided net.
4. A low smoke, flame retardant and fire resistant power cable according to claim 1, wherein: the polyolefin outer sheath (9) is a B1-level halogen-free low-smoke flame-retardant ceramic polyolefin outer sheath.
5. A low smoke, flame retardant and fire resistant power cable according to claim 1, wherein: the armor layer (8) is formed by braiding galvanized steel wires or tinned steel wires.
6. A low smoke, flame retardant and fire resistant power cable according to claim 2, wherein: the conductor (11) is formed by twisting a plurality of tinned wires and copper wires.
7. A low smoke, flame retardant and fire resistant power cable according to claim 1, wherein: the fireproof composite belt (7) comprises a high-temperature-resistant aluminum silicate fiber belt, wherein a polyurethane film and a phenolic resin layer are sequentially formed on the upper surface of the high-temperature-resistant aluminum silicate fiber belt, and a halogen-free flame-retardant pvc film and a water-based ceramic inorganic coating layer are sequentially formed on the lower surface of the high-temperature-resistant aluminum silicate fiber belt.
8. A low smoke, flame retardant and fire resistant power cable according to claim 1, wherein: the metal shielding layer (5) is an aluminum foil shielding layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223559121.9U CN219105815U (en) | 2022-12-30 | 2022-12-30 | Low-smoke flame-retardant fire-resistant power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223559121.9U CN219105815U (en) | 2022-12-30 | 2022-12-30 | Low-smoke flame-retardant fire-resistant power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219105815U true CN219105815U (en) | 2023-05-30 |
Family
ID=86464534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223559121.9U Active CN219105815U (en) | 2022-12-30 | 2022-12-30 | Low-smoke flame-retardant fire-resistant power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219105815U (en) |
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2022
- 2022-12-30 CN CN202223559121.9U patent/CN219105815U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A low smoke, flame-retardant, and fire-resistant power cable Granted publication date: 20230530 Pledgee: Wuxi rural commercial bank Limited by Share Ltd. Yixing branch Pledgor: JIANGSU LONG-E CABLE Co.,Ltd. Registration number: Y2024980002815 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |