CN220420330U - Crosslinked polyethylene insulation flame-retardant power cable - Google Patents
Crosslinked polyethylene insulation flame-retardant power cable Download PDFInfo
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- CN220420330U CN220420330U CN202322029698.7U CN202322029698U CN220420330U CN 220420330 U CN220420330 U CN 220420330U CN 202322029698 U CN202322029698 U CN 202322029698U CN 220420330 U CN220420330 U CN 220420330U
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- crosslinked polyethylene
- polyethylene insulated
- power cable
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- 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
- 239000003063 flame retardant Substances 0.000 title claims abstract description 48
- 229920003020 cross-linked polyethylene Polymers 0.000 title claims abstract description 32
- 239000004703 cross-linked polyethylene Substances 0.000 title claims abstract description 32
- 238000009413 insulation Methods 0.000 title description 4
- 229920000098 polyolefin Polymers 0.000 claims abstract description 24
- 239000003365 glass fiber Substances 0.000 claims abstract description 22
- 239000000779 smoke Substances 0.000 claims abstract description 20
- 239000004743 Polypropylene Substances 0.000 claims abstract description 16
- 239000002131 composite material Substances 0.000 claims abstract description 16
- -1 polypropylene Polymers 0.000 claims abstract description 16
- 229920001155 polypropylene Polymers 0.000 claims abstract description 16
- 238000005260 corrosion Methods 0.000 claims abstract description 15
- 229920003023 plastic Polymers 0.000 claims abstract description 13
- 239000004033 plastic Substances 0.000 claims abstract description 13
- 239000000919 ceramic Substances 0.000 claims abstract description 7
- 239000000565 sealant Substances 0.000 claims abstract description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 16
- 239000004020 conductor Substances 0.000 claims description 14
- 229920002379 silicone rubber Polymers 0.000 claims description 12
- 239000004945 silicone rubber Substances 0.000 claims description 12
- 229920006231 aramid fiber Polymers 0.000 claims description 10
- 239000004744 fabric Substances 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 9
- 239000010949 copper Substances 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 229920001187 thermosetting polymer Polymers 0.000 claims description 8
- 239000004677 Nylon Substances 0.000 claims description 6
- 229920001778 nylon Polymers 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 229920000459 Nitrile rubber Polymers 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 claims description 4
- 229920002943 EPDM rubber Polymers 0.000 claims description 3
- 238000005187 foaming Methods 0.000 claims description 3
- 238000013329 compounding Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract description 11
- 230000007797 corrosion Effects 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000002585 base Substances 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000000835 fiber Substances 0.000 description 4
- 241001391944 Commicarpus scandens Species 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000007794 irritation Effects 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 239000002674 ointment Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
The utility model discloses a crosslinked polyethylene insulated flame-retardant power cable, which comprises a plurality of crosslinked polyethylene insulated wire cores, wherein a crosslinked halogen-free low-smoke polyolefin insulating layer is extruded outside the crosslinked polyethylene insulated wire cores; an anti-dripping ceramic polyolefin inner sheath is extruded outside the cross-linked halogen-free low-smoke polyolefin insulating layer, a high-temperature-resistant oleamen aluminum-plastic composite belt is wrapped outside the inner sheath, a glass fiber reinforced polypropylene protection pipe is arranged outside the high-temperature-resistant oleamen aluminum-plastic composite belt, and a sealant is filled in a gap between the high-temperature-resistant oleamen aluminum-plastic composite belt and the glass fiber reinforced polypropylene protection pipe. Through optimizing the tensile strength, wear resistance, flame retardance, corrosion resistance, waterproof performance, bending and other performances of the cable, the cable has the performances of high tensile strength, flame retardance, corrosion resistance, waterproof performance, bending and the like and long service life.
Description
Technical Field
The utility model relates to the field of cable conductors, in particular to a crosslinked polyethylene insulated flame-retardant power cable.
Background
Along with the frequent occurrence of fire accidents, people continuously deepen understanding of fire hazard of wires and cables, and related departments have higher and higher requirements on performances such as fire resistance and flame retardance of wires and cables. Because the cable fire has the characteristics of quick spread, difficult rescue, secondary hazard generation, long recovery time and the like, huge losses are brought to lives and properties of national economy and people. Therefore, more severe operating conditions are put forward for flame retardance, fireproof characteristics and safety and reliability of wires and cables. If the fire-proof, explosion-proof and overload-proof ability is strong, the service life is long, under the fire condition, the fire-fighting elevator and the fire pump need to keep normal operation within a certain time, and the cable has special requirements of low smoke, low halogen, low toxicity, no smoke, no halogen, no toxicity and the like after burning. The cable flame-retardant and fireproof measures are important means for reducing the ignition delay and the combustion of the cable, and are mainly used for preventing the fire, and various flame-retardant cables, fireproof cables and fireproof cables are widely applied.
In recent years, casualties occur in public fires; the main reason is that a large amount of inflammable materials are used and a large amount of smoke and toxic gases are generated when the inflammable materials are burnt. With the increasing importance of people on environmental protection and fire protection consciousness, the fire department has continuously improved the requirements on the safety and reliability of the fire-fighting system of modern high-rise buildings, various important construction projects and civil houses. Modern buildings have made great technical advances in terms of function, structure, materials, etc. The building uses a large amount of organic chemical materials, the traditional flame-retardant cable is not suitable for the actual condition of strong flame and ultra-high temperature of modern building fire, and the temperature grade of the flame-retardant cable is necessary to be improved continuously; and the strength, elasticity, fire resistance and high temperature resistance of the existing cable are poor, so that the service life of the cable is short.
In operation, if moisture permeates into the insulating layer to form water branches, the power cable discharges and even breaks down the cable; due to mechanical pressure of the cable during covering or maintenance, defects in the insulating layer and damage to the cable joint, water can penetrate, particularly in the sheath, and due to capillary phenomenon, water can spread longitudinally along the cable core, so that the power cable breaks down;
in the laying process, the cable is sometimes required to be laid in a cable well, and when the cable is pulled by a large force or is manually trampled, the cable is easy to break or the copper conductor is easy to break, so that the use of the cable is affected. This requires that the power cable have high mechanical strength, high tensile properties and wear resistance to accommodate different laying environments;
the cable is buried in the ground generally, and the environment is abominable, so need protect the cable, at winding displacement in-process, the cable often needs crooked, appears damaging easily when crooked, and structural strength is lower, and the protection effect is not good.
Disclosure of Invention
The utility model aims to solve the problems in the prior art, and provides a crosslinked polyethylene insulated flame-retardant power cable, which is optimized in terms of the performances such as tensile strength, wear resistance, flame retardance, corrosion resistance, waterproof performance, bending and the like, so that the cable has the performances such as high tensile strength, flame retardance, corrosion resistance, waterproof performance, bending and the like and has long service life.
The crosslinked polyethylene insulated flame-retardant power cable comprises a plurality of crosslinked polyethylene insulated wire cores, wherein a crosslinked halogen-free low-smoke polyolefin insulating layer is extruded outside the crosslinked polyethylene insulated wire cores, and connecting ribs integrated with the crosslinked halogen-free low-smoke polyolefin insulating layer are formed in the transverse direction and the longitudinal direction of the crosslinked halogen-free low-smoke polyolefin insulating layer; an inner cavity is formed between the connecting ribs and the cross-linked halogen-free low-smoke polyolefin insulating layer, and a reinforced supporting core is filled in the inner cavity; an anti-dripping ceramic polyolefin inner sheath is extruded outside the cross-linked halogen-free low-smoke polyolefin insulating layer, a high-temperature-resistant oleamen aluminum-plastic composite belt is wrapped outside the inner sheath, a glass fiber reinforced polypropylene protection pipe is arranged outside the high-temperature-resistant oleamen aluminum-plastic composite belt, and a sealant is filled in a gap between the high-temperature-resistant oleamen aluminum-plastic composite belt and the glass fiber reinforced polypropylene protection pipe.
Further improved, the crosslinked polyethylene insulated wire core comprises a tinned copper conductor, a semi-conductive shielding layer is wrapped outside the tinned copper conductor, and glass fiber fireproof flame-retardant cloth is wrapped outside the semi-conductive shielding layer.
Further improved, the reinforced supporting core is formed by injection molding of aramid fiber and thermosetting resin.
Further improved, the reinforced supporting core is inlaid in the inner cavity.
The glass fiber reinforced polypropylene protection tube comprises a first tube body and a second tube body, wherein the first tube body and the second tube body are bonded through glue;
the first pipe body comprises flame-retardant silicone rubber, a base layer and a reinforcing layer, wherein the flame-retardant silicone rubber, the base layer and the reinforcing layer are bonded by glue;
the second pipe body comprises an anti-corrosion layer, a waterproof layer and a wear-resistant layer, wherein the anti-corrosion layer, the waterproof layer and the wear-resistant layer are bonded through glue.
Further improved, the base layer is formed by mixing glass fiber and reinforced polypropylene materials.
Further improved, the reinforcing layer is a net layer woven by carbon fibers.
Further improved, the anticorrosion layer ethylene propylene diene monomer is formed by foaming and compacting and compounding.
Further improved, the waterproof layer is waterproof nylon cloth.
Further improved, the wear-resistant layer is a nitrile rubber layer.
Compared with the prior art, the utility model has the beneficial effects that:
1. the tin-plated copper conductor is adopted, so that the tensile property of the wire core is stronger than that of the copper conductor, the wire core is strong in tensile property and bending resistance, and the wire core is not easy to break.
2. The glass fiber fireproof flame-retardant cloth is arranged in the wire core, has the characteristics of incombustibility, high temperature resistance (1100 ℃), compact structure, no irritation and the like, can well protect conductors from hot fire points and spark areas, thoroughly prevents combustion or isolated combustion, greatly improves the fireproof performance of the cable, and is a nontoxic environment-friendly material; the anti-dripping ceramic polyolefin inner sheath is extruded outside the cable core, meets the mechanical property required by the fireproof field at normal temperature, and does not cause dripping of the composite material to cause expansion of fire when in combustion, thereby improving the flame retardant property of the cable core and forming internal and external flame retardant double insurance.
3. The reinforced support core is embedded in the inner cavity and tightly attached to the inner cavity, and is formed by injection molding a plurality of aramid fiber filaments and thermosetting resin, wherein the aramid fiber filaments have excellent performances of ultrahigh strength, high modulus, high temperature resistance, acid and alkali resistance, light weight and the like, the strength is 5-6 times that of steel wires, the modulus is 2-3 times that of steel wires or glass fibers, the toughness is 2 times that of the steel wires, the weight is only about 1/5 of that of the steel wires, and the aramid fiber filaments are not decomposed and are not melted at the temperature of 560 ℃; the cable has good insulativity and ageing resistance, has a very long life cycle, and is wrapped with thermosetting resin outside aramid fiber yarns, and after the thermosetting resin is cured, a reticular structure is formed due to intermolecular crosslinking, so that the rigidity is high, the hardness is high, the temperature resistance is high, the fiber is not inflammable, the fiber is further enhanced, the mechanical strength and the tensile property of the cable core are greatly improved, and the cable is not broken or broken when the cable is pulled by a large force or is manually trampled in the laying process, so that the use of the cable is affected.
4. The wrapping high-temperature-resistant oleamen aluminum-plastic composite belt prevents water vapor from entering, ensures excellent electrical performance of the cable, and solves the problems that water is permeated into an insulating layer to form water branches, and then discharge and even breakdown of the cable occur.
5. The glass fiber reinforced polypropylene protective tube is adopted, and the base layer is designed to have high strength, excellent impact resistance, high tensile strength and high temperature resistance; the reinforcing layer is a reticular layer woven by carbon fibers, so that the reinforcing layer has high tensile strength, and when the reinforcing layer is extruded and impacted, the conductor is protected from being damaged by reasonable deformation, so that the reinforcing layer is easier to bend and has good durability; the heat dissipation is facilitated by utilizing the heat conducting property of the flame-retardant silicone rubber, so that the safety is improved; the insulation performance of the flame-retardant silicone rubber is utilized to prevent electric leakage and provide protection for maintenance personnel; the flame retardant property of the first pipe body is improved by utilizing the flame retardant property of the flame retardant silicone rubber; the tensile strength, the tensile strength and the flame retardant property of the cable are improved as a whole; the waterproof layer is made of waterproof nylon cloth, and the waterproof layer and the waterproof nylon cloth are combined to prevent groundwater from corroding the protective tube, so that the service life of the protective tube is prolonged; through designing the wearing layer to be the nitrile rubber layer, improve the wearability, tensile strength and the antitorque commentaries on classics performance of protection tube to reach the good effect of bending resistance, solved the cable and often need crooked at winding displacement in-process, damage appears easily when crooked, structural strength is lower, and the not good problem of protection effect.
6. In summary, through the improvement of the structure, the tensile strength, the flame retardant property, the corrosion resistance, the waterproof property, the bending property and other properties of the cable are optimized, so that the cable has the properties of high tensile strength, flame retardant property, corrosion resistance, waterproof property, bending property and the like and long service life.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic structural view of a reinforced support core;
FIG. 3 is a schematic view of a glass fiber reinforced polypropylene protective tube;
FIG. 4 is a schematic view of the structure of the first pipe body;
fig. 5 is a schematic structural view of the second pipe body.
Description of the embodiments
The present utility model is further illustrated in the accompanying drawings and detailed description which are to be understood as being merely illustrative of the utility model and not limiting of its scope, and various modifications of the utility model, which are equivalent to those skilled in the art upon reading the utility model, will fall within the scope of the utility model as defined in the appended claims.
The crosslinked polyethylene insulated flame-retardant power cable shown in fig. 1 comprises crosslinked polyethylene insulated wires, wherein the crosslinked polyethylene insulated wires are formed by four crosslinked polyethylene insulated wire cores and a crosslinked halogen-free low-smoke polyolefin insulating layer 4 which is extruded outside the four crosslinked polyethylene insulated wire cores;
the crosslinked polyethylene insulated wire core comprises a tinned copper conductor 1, a semi-conductive shielding layer 2 is wrapped outside the tinned copper conductor, and a glass fiber fireproof flame-retardant cloth 3 is wrapped outside the semi-conductive shielding layer, so that the crosslinked polyethylene insulated wire core has the characteristics of incombustibility, high temperature resistance (1100 ℃), compact structure, no irritation and the like, can well protect the conductor from a hot fire point and a spark zone, thoroughly prevent combustion or isolated combustion, greatly improve the fireproof performance of the cable, and is a nontoxic environment-friendly material;
the transverse direction and the longitudinal direction of the cross-linked halogen-free low-smoke polyolefin insulating layer form a connecting rib 5 integrated with the cross-linked halogen-free low-smoke polyolefin insulating layer; an inner cavity 6 is formed between the connecting rib and the crosslinked halogen-free low-smoke polyolefin insulating layer, a reinforced supporting core 7 (shown in figure 2) is embedded in the inner cavity and tightly attached to the inner cavity, the reinforced supporting core is formed by injection molding a plurality of aramid fiber filaments and thermosetting resin, wherein the aramid fiber filaments have excellent performances of ultrahigh strength, high modulus, high temperature resistance, acid resistance, alkali resistance, light weight and the like, the strength is 5-6 times that of steel wires, the modulus is 2-3 times that of the steel wires or glass fibers, the toughness is 2 times that of the steel wires, the weight is only about 1/5 of the steel wires, and the aramid fiber filaments are not decomposed and are not melted at the temperature of 560 ℃; the cable has good insulativity and ageing resistance, has a very long life cycle, and is wrapped with thermosetting resin outside aramid fiber yarns, and after the thermosetting resin is cured, a reticular structure is formed due to intermolecular crosslinking, so that the rigidity is high, the hardness is high, the temperature resistance is high, the fiber is not inflammable, the fiber is further enhanced, the mechanical strength and the tensile property of the cable core are greatly improved, and the cable is not broken or broken when the cable is pulled by a large force or is manually trampled in the laying process, so that the use of the cable is affected;
an anti-dripping ceramic polyolefin inner sheath 8 is extruded outside the cross-linked halogen-free low-smoke polyolefin insulating layer 4, the mechanical property required by the fireproof field is met at normal temperature, and when the composite material is burnt, the dripping of the composite material is not caused to expand the fire, and the cable is more round; the anti-dripping ceramic polyolefin inner sheath 8 is wrapped with the high-temperature-resistant ointment aluminum-plastic composite belt 9, so that the entry of water vapor is prevented, the excellent electrical performance of the cable is ensured, and the problems that water is permeated into an insulating layer to form water branches, discharge is caused, and even the cable breaks down are solved; the glass fiber reinforced polypropylene protection tube 10 is sleeved outside the high-temperature-resistant oleamen aluminum-plastic composite belt 9, the gap between the high-temperature-resistant oleamen aluminum-plastic composite belt and the glass fiber reinforced polypropylene protection tube is filled with the sealant 11, and the flexible elastic sealant can be used for preventing liquid and impurities from entering the cable and has weather resistance, excellent chemical stability, corrosion resistance, moderate hardness and good elastic recovery, and can absorb stress generated by thermal expansion and cold contraction without cracking.
As shown in fig. 3 to 5, the glass fiber reinforced polypropylene protection tube 10 comprises a first tube body 101 and a second tube body 102, wherein the first tube body 101 and the second tube body 102 are bonded by glue;
the first pipe body 101 comprises a flame-retardant silicone rubber 1011, a base layer 1012 and a reinforcing layer 1013 from inside to outside, wherein the flame-retardant silicone rubber 1011, the base layer 1012 and the reinforcing layer 1013 are bonded by glue; the base layer is formed by mixing glass fiber and reinforced polypropylene materials, so that the base layer has high strength, excellent impact resistance, high tensile strength and high temperature resistance; the reinforcing layer is a reticular layer woven by carbon fibers, so that the reinforcing layer has high tensile strength, and when the reinforcing layer is extruded and impacted, the conductor is protected from being damaged by reasonable deformation, so that the reinforcing layer is easier to bend and has good durability; the heat dissipation is facilitated by utilizing the heat conducting property of the flame-retardant silicone rubber, so that the safety is improved; the insulation performance of the flame-retardant silicone rubber is utilized to prevent electric leakage and provide protection for maintenance personnel; the flame retardant property of the first pipe body is improved by utilizing the flame retardant property of the flame retardant silicone rubber;
the second pipe body 102 comprises an anticorrosive layer 1021, a waterproof layer 1022 and a wear-resistant layer 1023 from inside to outside, and the anticorrosive layer, the waterproof layer and the wear-resistant layer are bonded by glue; the anti-corrosion layer is formed by foaming and compacting ethylene propylene diene monomer rubber, the waterproof layer is waterproof nylon cloth, and the waterproof layer and the nylon cloth are combined to prevent groundwater from corroding the protection pipe, so that the service life of the protection pipe is prolonged; through designing the wearing layer to be the nitrile rubber layer, improve the wearability, tensile strength and the antitorque commentaries on classics performance of protection tube to reach the good effect of bending resistance, solved the cable and often need crooked at winding displacement in-process, damage appears easily when crooked, structural strength is lower, and the not good problem of protection effect.
In summary, through the improvement of the structure, the tensile strength, the wear resistance, the flame retardant property, the corrosion resistance, the waterproof property, the bending property and the like of the cable are optimized, so that the cable has the properties of high tensile strength, flame retardant property, corrosion resistance, waterproof property, bending property and the like and long service life.
The present utility model has been described in terms of the preferred embodiments thereof, and it should be understood by those skilled in the art that various modifications can be made without departing from the principles of the utility model, and such modifications should also be considered as being within the scope of the utility model.
Claims (10)
1. A crosslinked polyethylene insulated flame retardant power cable, characterized in that: the cable comprises a plurality of crosslinked polyethylene insulated wire cores, wherein the crosslinked polyethylene insulated wire cores are externally and jointly extruded with a crosslinked halogen-free low-smoke polyolefin insulating layer to form a crosslinked polyethylene insulated wire, and the transverse direction and the longitudinal direction of the crosslinked halogen-free low-smoke polyolefin insulating layer form a connecting rib integrated with the crosslinked halogen-free low-smoke polyolefin insulating layer; an inner cavity is formed between the connecting ribs and the cross-linked halogen-free low-smoke polyolefin insulating layer, and a reinforced supporting core is filled in the inner cavity; the anti-dripping ceramic polyolefin inner sheath is extruded outside the cross-linked halogen-free low-smoke polyolefin insulating layer, the anti-dripping ceramic polyolefin inner sheath is wrapped with the high-temperature-resistant oleamen aluminum-plastic composite belt, the glass fiber reinforced polypropylene protective tube is sleeved outside the high-temperature-resistant oleamen aluminum-plastic composite belt, and the gap between the high-temperature-resistant oleamen aluminum-plastic composite belt and the glass fiber reinforced polypropylene protective tube is filled with sealant.
2. The crosslinked polyethylene insulated flame retardant power cable of claim 1, wherein: the crosslinked polyethylene insulated wire core comprises a tinned copper conductor, a semi-conductive shielding layer is wrapped outside the tinned copper conductor, and glass fiber fireproof flame-retardant cloth is wrapped outside the semi-conductive shielding layer.
3. The crosslinked polyethylene insulated flame retardant power cable of claim 1, wherein: the reinforced supporting core is formed by injection molding a plurality of aramid fiber filaments and thermosetting resin.
4. A crosslinked polyethylene insulated flame retardant power cable according to claim 1 or 3, characterized in that: the reinforced supporting core is inlaid in the inner cavity.
5. The crosslinked polyethylene insulated flame retardant power cable of claim 1, wherein: the glass fiber reinforced polypropylene protection tube comprises a first tube body and a second tube body, wherein the first tube body and the second tube body are bonded through glue;
the first pipe body comprises flame-retardant silicone rubber, a base layer and a reinforcing layer, wherein the flame-retardant silicone rubber, the base layer and the reinforcing layer are bonded by glue;
the second pipe body comprises an anti-corrosion layer, a waterproof layer and a wear-resistant layer, wherein the anti-corrosion layer, the waterproof layer and the wear-resistant layer are bonded through glue.
6. The crosslinked polyethylene insulated flame retardant power cable of claim 5, wherein: the base layer is formed by mixing glass fiber and reinforced polypropylene materials.
7. The crosslinked polyethylene insulated flame retardant power cable of claim 5, wherein: the reinforcing layer is a reticular layer woven by carbon fibers.
8. The crosslinked polyethylene insulated flame retardant power cable of claim 5, wherein: the ethylene propylene diene monomer rubber of the anti-corrosion layer is formed by foaming and compacting and compounding.
9. The crosslinked polyethylene insulated flame retardant power cable of claim 5, wherein: the waterproof layer is waterproof nylon cloth.
10. The crosslinked polyethylene insulated flame retardant power cable of claim 5, wherein: the wear-resistant layer is a nitrile rubber layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322029698.7U CN220420330U (en) | 2023-07-31 | 2023-07-31 | Crosslinked polyethylene insulation flame-retardant power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322029698.7U CN220420330U (en) | 2023-07-31 | 2023-07-31 | Crosslinked polyethylene insulation flame-retardant power cable |
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| Publication Number | Publication Date |
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| CN220420330U true CN220420330U (en) | 2024-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322029698.7U Active CN220420330U (en) | 2023-07-31 | 2023-07-31 | Crosslinked polyethylene insulation flame-retardant power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220420330U (en) |
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2023
- 2023-07-31 CN CN202322029698.7U patent/CN220420330U/en active Active
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