CN210489303U - Cross-linked halogen-free low-smoke polyolefin insulation flame-retardant power cable - Google Patents
Cross-linked halogen-free low-smoke polyolefin insulation flame-retardant power cable Download PDFInfo
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- CN210489303U CN210489303U CN201921568316.5U CN201921568316U CN210489303U CN 210489303 U CN210489303 U CN 210489303U CN 201921568316 U CN201921568316 U CN 201921568316U CN 210489303 U CN210489303 U CN 210489303U
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- retardant
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 70
- 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 60
- 239000000779 smoke Substances 0.000 title claims abstract description 55
- 229920000098 polyolefin Polymers 0.000 title claims abstract description 41
- 238000009413 insulation Methods 0.000 title claims abstract description 21
- 239000004809 Teflon Substances 0.000 claims abstract description 22
- 229920006362 Teflon® Polymers 0.000 claims abstract description 22
- 229920002748 Basalt fiber Polymers 0.000 claims abstract description 17
- 238000004132 cross linking Methods 0.000 claims abstract description 9
- 150000001875 compounds Chemical class 0.000 claims abstract description 6
- 229920000742 Cotton Polymers 0.000 claims abstract description 5
- 239000000919 ceramic Substances 0.000 claims abstract description 5
- 239000000835 fiber Substances 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 20
- 239000004020 conductor Substances 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- 239000003365 glass fiber Substances 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 7
- 239000011241 protective layer Substances 0.000 claims description 7
- 229920000297 Rayon Polymers 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000002390 adhesive tape Substances 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- 229910052736 halogen Inorganic materials 0.000 claims description 5
- 239000004745 nonwoven fabric Substances 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 150000002367 halogens Chemical class 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 229920004933 Terylene® Polymers 0.000 claims description 2
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 10
- 125000006850 spacer group Chemical group 0.000 abstract description 4
- 230000002787 reinforcement Effects 0.000 abstract description 3
- 235000019504 cigarettes Nutrition 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 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
- 239000003921 oil Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model discloses a crosslinking halogen-free low-smoke polyolefin insulation flame-retardant power cable, including crosslinking halogen-free low-smoke polyolefin insulation cable, wrap the basalt fiber fire hose after wrapping up the ceramic fiber heat insulation cotton outside crosslinking halogen-free low-smoke polyolefin insulation cable, extrude the black low-smoke halogen-free spacer sleeve outside the basalt fiber fire hose, wrap the compound fire hose of teflon outside the black low-smoke halogen-free spacer sleeve, be equipped with the reinforcement core sheath outside the compound fire hose of teflon, wrap the insulating flame-retardant sticky tape outside the reinforcement core sheath, extrude the halogen-free low-smoke flame-retardant polyolefin oversheath outside the insulating flame-retardant sticky tape; the product has excellent flame retardant property, less smoke during combustion and no corrosive gas escape, and is widely applied to nuclear power stations, subway stations, telephone exchanges, computer control centers, high-rise buildings, hotels, broadcast stations, important military facilities, oil platforms and other places with concentrated personnel and low air density.
Description
Technical Field
The utility model relates to a cable conductor field specifically is a fire-retardant power cable of crosslinking halogen-free low cigarette polyolefin insulation.
Background
Along with the frequent occurrence of fire accidents, people continuously deepen the understanding of the fire hazard risk of the electric wire and the electric cable, and the requirements of relevant departments on the performances of fire prevention, flame retardance and the like of the electric wire and the electric cable are higher and higher. The cable fire disaster has the characteristics of fast spread, difficult fire fighting, secondary hazard generation, long recovery time and the like, and can bring huge loss to national economy and the lives and properties of people. Therefore, more severe operating conditions are provided for the flame retardant property, the fireproof property and the safety and reliability of the wires and cables. If the fire-fighting elevator and the fire pump are in fire prevention, explosion prevention, strong overload capacity and long service life, the fire-fighting elevator and the fire pump need to be kept in normal operation for a certain time under the condition of fire, and the cable has special requirements of low smoke, low halogen and low toxicity after combustion, even no smoke, no halogen, no toxicity and the like. The fire-retardant and fire-proof measures of the cable are important means for reducing the fire delay of the cable, and the key point is that the fire-retardant and fire-proof measures are mainly used for preventing fire, and various fire-retardant cables, fire-resistant cables and fire-proof cables are widely applied.
In recent years, casualties in public fire sometimes occur. The main reasons are the use of large amounts of combustible materials and the large amounts of smoke and toxic gases generated during combustion. With the increasing attention of people to environmental protection and fire protection consciousness, the requirements of fire departments on the safety and reliability of modern high-rise buildings, various important construction projects and residential facility fire protection systems are continuously improved. Modern buildings have great technological advances in function, structure, materials and the like. A large amount of organic chemical materials are used in buildings, the traditional flame-retardant cable is not suitable for the actual conditions of violent flame and extremely high temperature of fire disasters of modern buildings, and the temperature grade of the flame-retardant cable is necessary to be continuously improved; and the existing cable has poor strength, elasticity, fire resistance, high temperature resistance and strong corrosion resistance, so that the service life of the cable is short.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the problem that exists among the prior art, provide a fire-retardant power cable of cross-linking halogen-free low smoke polyolefin insulation, this product fire behaviour is superior, and the smoke intensity is very few during the burning, and noncorrosive gas escapes, and the wide application is in nuclear power station, subway station, telephone exchange and computer control center, high-rise building, hotel, broadcast television station, important military facilities, oil platform etc to and personnel are more concentrated, the place that air density is low.
A crosslinking does not have steamed low cigarette polyolefin insulation flame retardant power cable, including crosslinking does not have steamed low cigarette polyolefin insulation cable, wrap the basalt fiber fire hose after the thermal-insulated cotton of wrapping up ceramic fiber outside crosslinking does not have steamed low cigarette polyolefin insulation cable again, extrude black low cigarette halogen-free spacer outside basalt fiber fire hose, wrap the compound fire hose of teflon outside at black low cigarette halogen-free spacer, be equipped with the enhancement core sheath outside the compound fire hose of teflon, wrap insulating flame retardant sticky tape outside the enhancement core sheath, extrude the steamed low cigarette flame retardant polyolefin oversheath outside insulating flame retardant sticky tape.
The cross-linked halogen-free low-smoke polyolefin insulated cable is further improved by two cross-linked halogen-free low-smoke polyolefin insulated wire cores and a cross-linked halogen-free low-smoke polyolefin insulating layer which is jointly extruded outside the two cross-linked halogen-free low-smoke polyolefin insulated wire cores.
The crosslinked halogen-free low-smoke polyolefin insulated wire core comprises a tinned copper conductor, a basalt fiber fireproof belt is wrapped outside the tinned copper conductor, and a semiconductive shielding layer is wrapped outside the basalt fiber fireproof belt.
The improved Teflon composite fire-retardant belt comprises a Teflon mesh belt base body, wherein the upper surface of the Teflon mesh belt base body is connected with a terylene flame-retardant non-woven fabric through silicon viscose, and the lower surface of the Teflon mesh belt base body is connected with a glass fiber fireproof flame-retardant fabric through the silicon viscose.
The improved structure is characterized in that the reinforcing core protective layer is of a circular ring shape, and is formed by pouring flame-retardant glue at the gap between the carbon fiber cores after a plurality of carbon fiber cores are arranged and combined into a circle and then solidifying the flame-retardant glue.
The insulating flame-retardant adhesive tape comprises a PC flame-retardant film on the uppermost layer, a glass fiber tape in the middle layer and a polyimide film on the lowermost layer, wherein the three layers are laminated by adhesives.
The black low-smoke halogen-free isolation sleeve is further improved, and is made of black low-smoke halogen-free oxygen-isolating sheath materials, and the thickness of the black low-smoke halogen-free isolation sleeve is 1.1 +/-0.1 mm.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the tin-plated copper conductor has stronger tensile property than a copper conductor, so that the tensile property of the wire core is strong, the bending resistance is strong, and the wire core is not easy to break;
2. the basalt fiber fireproof belt is arranged outside the conductor, has the characteristics of non-inflammability, high temperature resistance (1100 ℃), compact structure, no irritation and the like, can well protect the conductor from a hot fire point and a spark area, thoroughly prevents combustion or isolates combustion, greatly improves the fireproof performance of the cable, and is a non-toxic environment-friendly material; the basalt fiber fireproof belt is arranged outside the cable core, so that the flame retardant property of the cable core is improved, and internal and external flame retardant double insurance is formed;
3. the ceramic fiber heat insulation cotton is adopted to replace the existing filling and is tightly attached to the wire core without gaps, so that the problems of unevenness and incompactness of the existing filling are solved, the wire core is better protected from being extruded and deformed, and the cable core has the characteristics of light weight, high strength, oxidation resistance, low heat conductivity, good flexibility, corrosion resistance and the like;
4. the cable is sequentially provided with a plurality of layers of fireproof and flame-retardant structures from inside to outside to form a flame-retardant net with a plurality of layers of flame-retardant structures, so that the flame retardant property of the cable is improved by dozens of times or even hundreds of times compared with the existing cable;
5. in order to improve the integral tensile property of the cable, the reinforced core protective layer is arranged, so that the cable has better rigidity and higher strength than a steel core, and has light weight, and the cable has the properties of high strength, high temperature resistance, corrosion resistance, fatigue resistance, tensile resistance and the like; the flame-retardant glue has the function of fixing the carbon fiber core after being cured, so that the reinforced core protective layer has flame-retardant property, and the flame-retardant property of the cable is further improved;
6. the product has excellent flame retardant property, less smoke during combustion and no corrosive gas escape, and is widely applied to nuclear power stations, subway stations, telephone exchanges, computer control centers, high-rise buildings, hotels, broadcast stations, important military facilities, oil platforms and other places with concentrated personnel and low air density.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a Teflon composite fire belt;
FIG. 3 is a schematic view of the structure of the sheath of the reinforcement core;
fig. 4 is a schematic structural view of an insulating flame-retardant adhesive tape.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, the cross-linked halogen-free low-smoke polyolefin insulation flame-retardant power cable comprises a cross-linked halogen-free low-smoke polyolefin insulation cable, wherein the cross-linked halogen-free low-smoke polyolefin insulation cable is formed by two cross-linked halogen-free low-smoke polyolefin insulation wire cores and a cross-linked halogen-free low-smoke polyolefin insulation layer 4 jointly extruded outside the two cross-linked halogen-free low-smoke polyolefin insulation wire cores;
the crosslinked halogen-free low-smoke polyolefin insulated wire core comprises a tinned copper conductor 1, a basalt fiber fireproof belt 2 is wrapped outside the tinned copper conductor, a semi-conductive shielding layer 3 is wrapped outside the basalt fiber fireproof belt, and the basalt fiber fireproof belt is wrapped in the wire core, so that the cable core has the characteristics of non-combustion, high temperature resistance (1100 ℃), compact structure, no irritation and the like, can well protect the conductor from a hot fire point and a spark area, thoroughly prevents combustion or isolates combustion, greatly improves the fireproof performance of the cable, and is a non-toxic environment-friendly material;
the fireproof cable is characterized in that ceramic fiber heat insulation cotton 5 wraps the outer portion of a cross-linked halogen-free low-smoke polyolefin insulation cable, then a basalt fiber fireproof belt 2 is wrapped in a winding mode, a black low-smoke halogen-free isolation sleeve 6 wraps the outer portion of the basalt fiber fireproof belt, a teflon composite fireproof belt 7 wraps the outer portion of the black low-smoke halogen-free isolation sleeve, a reinforced core protective layer 8 is arranged outside the teflon composite fireproof belt, an insulating flame-retardant adhesive tape 9 wraps the outer portion of the reinforced core protective layer, and a low-smoke halogen-free flame-retardant polyolefin outer sheath 10 wraps the outer portion of the insulating flame-retardant adhesive tape in an extrusion mode, so that the fireproof cable is excellent in flame retardant performance, low in smoke intensity during combustion and free of corrosive gas escape, and is widely applied to nuclear power stations, subway stations, telephone exchanges and computer control centers, high-rise buildings, hotels, broadcast;
as shown in fig. 2, the teflon composite fire-retardant belt comprises a teflon mesh belt substrate 11, wherein the upper surface of the teflon mesh belt substrate is connected with a polyester flame-retardant non-woven fabric 12 through silicon viscose, and the lower surface of the teflon mesh belt substrate is connected with a glass fiber flame-retardant fabric 13 through silicon viscose, so that the performance of the cable is 10-20 times better than that of the cable adopting flame-retardant materials such as non-woven fabrics, glass fibers and the like after compounding, and the teflon composite fire-retardant belt has good chemical corrosion resistance, high temperature resistance, high strength, good elasticity, good heat resistance, good wear resistance and good light resistance;
as shown in fig. 3, the reinforcing core sheath is annular, and is formed by arranging and combining a plurality of carbon fiber cores into a circle and pouring flame-retardant glue 15 in the gap between the carbon fiber cores 14 for curing, and the reinforcing core sheath has better rigidity and higher strength than the steel cores and has light weight, so that the cable has the performances of high strength, high temperature resistance, corrosion resistance, fatigue resistance, tensile resistance and the like; the flame-retardant glue has the function of fixing the carbon fiber core after being cured, so that the reinforced core protective layer has flame-retardant property, and the flame-retardant property of the cable is further improved;
as shown in fig. 4, the insulating flame-retardant adhesive tape comprises a PC flame-retardant film 16 at the uppermost layer, a glass fiber tape 17 at the middle layer and a polyimide film 18 at the lowermost layer, wherein the three layers are bonded by adhesives, fine sand, medium sand, coarse sand, matte and other textures are arranged on the surface of the PC flame-retardant film, the UL94 fire rating reaches V-0 or VTM-0, and the film has good formability, excellent mechanical properties, good dimensional stability and high flame-retardant rating at high temperature, is environment-friendly and is easy to recycle; the integral composite structure has the advantages of simple structure, good electrical insulation performance, good flame retardant performance, long service life, firmness, durability and the like.
The utility model discloses the concrete application way is many, and the above-mentioned only is the preferred embodiment of the utility model, should point out, to ordinary skilled person in this technical field, under the prerequisite that does not deviate from the utility model discloses the principle, can also make a plurality of improvements, and these improvements also should be regarded as the utility model discloses a scope of protection.
Claims (7)
1. The utility model provides a fire-retardant power cable of crosslinking halogen-free low smoke polyolefin insulation which characterized in that: including crosslinked halogen-free low smoke polyolefin insulated cable, wrap the basalt fiber fire hose after the thermal-insulated cotton of ceramic fiber outside crosslinked halogen-free low smoke polyolefin insulated cable again, at the black low smoke zero halogen spacer sleeve of crowded package outside the basalt fiber fire hose, wrap the compound fire hose of teflon outside black low smoke zero halogen spacer sleeve, be equipped with the enhancement core sheath outside the compound fire hose of teflon, wrap the fire-retardant sticky tape of insulating at the enhancement core sheath outside, extrude the fire-retardant polyolefin oversheath of low smoke zero halogen outside the fire-retardant sticky tape of insulating package.
2. The cross-linked halogen-free low-smoke polyolefin insulated flame-retardant power cable according to claim 1, characterized in that: the cross-linked halogen-free low-smoke polyolefin insulated cable is formed by two cross-linked halogen-free low-smoke polyolefin insulated wire cores and a cross-linked halogen-free low-smoke polyolefin insulating layer which is jointly extruded and wrapped outside the two cross-linked halogen-free low-smoke polyolefin insulated wire cores.
3. The cross-linked halogen-free low-smoke polyolefin insulated flame-retardant power cable according to claim 1, characterized in that: the crosslinked halogen-free low-smoke polyolefin insulated wire core comprises a tinned copper conductor, a basalt fiber fireproof belt is wrapped outside the tinned copper conductor, and a semi-conductive shielding layer is wrapped outside the basalt fiber fireproof belt.
4. The cross-linked halogen-free low-smoke polyolefin insulated flame-retardant power cable according to claim 1, characterized in that: the teflon composite fireproof belt comprises a teflon mesh belt base body, wherein the upper surface of the teflon mesh belt base body is connected with a terylene flame-retardant non-woven fabric through silicon viscose, and the lower surface of the teflon mesh belt base body is connected with a glass fiber fireproof flame-retardant fabric through the silicon viscose.
5. The cross-linked halogen-free low-smoke polyolefin insulated flame-retardant power cable according to claim 1, characterized in that: the reinforced core protective layer is of a circular ring shape, and is formed by pouring flame-retardant glue at the gap between the carbon fiber cores after a plurality of carbon fiber cores are arranged and combined into a circle and then solidifying the flame-retardant glue.
6. The cross-linked halogen-free low-smoke polyolefin insulated flame-retardant power cable according to claim 1, characterized in that: the insulating flame-retardant adhesive tape comprises a PC flame-retardant film on the uppermost layer, a glass fiber tape in the middle layer and a polyimide film on the lowermost layer, wherein the three layers are laminated through adhesives.
7. The cross-linked halogen-free low-smoke polyolefin insulated flame-retardant power cable according to claim 1, characterized in that: the black low-smoke halogen-free isolation sleeve is made of black low-smoke halogen-free oxygen-isolating sheath materials, and the thickness of the black low-smoke halogen-free isolation sleeve is 1.1 +/-0.1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921568316.5U CN210489303U (en) | 2019-09-20 | 2019-09-20 | Cross-linked halogen-free low-smoke polyolefin insulation flame-retardant power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921568316.5U CN210489303U (en) | 2019-09-20 | 2019-09-20 | Cross-linked halogen-free low-smoke polyolefin insulation flame-retardant power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210489303U true CN210489303U (en) | 2020-05-08 |
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ID=70540893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921568316.5U Active CN210489303U (en) | 2019-09-20 | 2019-09-20 | Cross-linked halogen-free low-smoke polyolefin insulation flame-retardant power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210489303U (en) |
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- 2019-09-20 CN CN201921568316.5U patent/CN210489303U/en active Active
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