CN106057344A - Impact-resistant spray-resistant, halogen-free, low-smoke flame-retardant medium voltage fire-resistant cable - Google Patents
Impact-resistant spray-resistant, halogen-free, low-smoke flame-retardant medium voltage fire-resistant cable Download PDFInfo
- Publication number
- CN106057344A CN106057344A CN201610600412.8A CN201610600412A CN106057344A CN 106057344 A CN106057344 A CN 106057344A CN 201610600412 A CN201610600412 A CN 201610600412A CN 106057344 A CN106057344 A CN 106057344A
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- Prior art keywords
- fire
- layer
- cable
- conductor
- spray
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- Pending
Links
- 239000003063 flame retardant Substances 0.000 title claims abstract description 21
- 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 20
- 239000007921 spray Substances 0.000 title claims abstract description 20
- 239000000779 smoke Substances 0.000 title claims abstract description 13
- 230000009970 fire resistant effect Effects 0.000 title abstract description 6
- 239000004020 conductor Substances 0.000 claims abstract description 50
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 33
- 239000001301 oxygen Substances 0.000 claims abstract description 33
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000010949 copper Substances 0.000 claims abstract description 27
- 229910052802 copper Inorganic materials 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 20
- 239000003365 glass fiber Substances 0.000 claims abstract description 17
- 230000004888 barrier function Effects 0.000 claims abstract description 15
- 238000009413 insulation Methods 0.000 claims abstract description 14
- 229920000098 polyolefin Polymers 0.000 claims abstract description 10
- 239000000919 ceramic Substances 0.000 claims abstract description 6
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 6
- 239000004945 silicone rubber Substances 0.000 claims abstract description 6
- 239000010445 mica Substances 0.000 claims abstract description 5
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims description 3
- 230000002194 synthesizing effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 abstract 1
- 239000004927 clay Substances 0.000 abstract 1
- 229920003020 cross-linked polyethylene Polymers 0.000 abstract 1
- 239000004703 cross-linked polyethylene Substances 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
- 239000000956 alloy Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000001149 thermolysis Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention relates to an impact-resistant spray-resistant, halogen-free, low-smoke flame-retardant medium voltage fire-resistant cable which comprises a conductor. The conductor is externally wrapped by three sequential layers known as a conductor shielding layer, a crosslinked polyethylene insulation layer and an insulation shielding layer. The insulation shielding layer is externally wrapped by a copper shielding layer or a copper wire and copper strip reversely wrapped winding shielding to form the wire core of medium voltage cable. Three such wire cores are inter-twisted into a cable. When the cable is being made, glass fiber is filled. A mica tape or a ceramic fireproof silicone rubber tape is wrapped. After the cable core is extruded and wrapped by a layer of high oxygen index oxygen barrier layer, the outer layer of the high oxygen index barrier layer is then extruded and coated with a layer of fire clay fire blocking layer and at the same time wrapped by a glass fiber strip or halogen-free or high flame-retardant strip. Finally, a layer of halogen-low low-smoke flame-retardant polyolefin sheath material is wrapped. With a compact and reasonable structure, the cable of the invention is convenient to manufacture. It also serves as a halogen-free, low-smoke flame-retardant medium voltage fire-resistant cable with a long service life and good performances to resist fire, impact and spray.
Description
Technical field
The present invention relates to power cable technical field, especially a kind of impact resistance LSOH anti-flaming of resistance to spray is pressed fire-resistant
Cable.
Background technology
Along with developing rapidly of China's economy, in city, the voltage of electric power system also gradually rises.At present, domestic city
High-rise and super-huge building also gets more and more, if these buildings still use 0.6/1kV low voltage distribution, then it supports the use
Cable and mounting and installation workload, cable laying space will be the hugest, and the cable laid in building too much, mistake
Greatly, also can affect the operation of circuit, bring bigger safety problem.Difficult for solving the actual power of high-rise and super-huge building
Topic, presses (6-35kV) power supply in much having started to use.For building, fire safety be most important, need most to pay close attention to and
The primary problem solved.At present, in some big and medium-sized cities, it is distinctly claimed public place building, building high-rise, super-huge need to adopt
With environmental-protection flame-retardant, fire-resisting cable, with prevention when breaking out of fire, can ensure that supply line normally supplies within the predetermined time
Electricity, and toxic and harmful will not be produced because of burning.Therefore, piezoelectricity in a kind of environment-friendly high fire-retardant fire safe type need to be researched and developed
Cable.
Midium voltage cable is higher due to the voltage used, and must have conductor shielding, insulate and insulate screen outside the conductor of cable
Cover layer；As fire-resisting cable, it is necessary to a flame retardant coating must be applied, to ensure under combustion case, not only fire-resistant, and to have
Impact resistance and spray performance, to ensure that cable insulation is drenched affected by weight damage or water under combustion high temperature, thus meet
Insulating performance of cable is intact within a certain period of time, still can continue power supply.In existing, known fire-proof medium-voltage cable technology, all deposits
In some problems, and it is substantially the midium voltage cable of copper conductor.
Additionally, at published all fire-proof medium-voltage cable conductors all based on copper conductor.The bauxite resource of China is rich at present
Richness, and the scarcity that copper resource is very.Owing to internal copper ore resources is substantially close to exhaustion, or cost of winning is too high, 80% copper loss
Amount dependence on import, copper valency height becomes the most in the world in addition, makes power circuit cost of investment more and more higher, the resource consumption to copper material
The most excessive.And the use of this patent aluminium alloy conductor also can alleviate current copper resource scarcity, aluminium conductor runs unsafe present situation.
Summary of the invention
The applicant is for the shortcoming in above-mentioned existing production technology, it is provided that a kind of impact resistance LSOH anti-flaming of resistance to spray
Middle pressure fire-resisting cable, thus make it have that length in service life, fire protecting performance be good and impact resistance, the feature of resistance to spray.
The technical solution adopted in the present invention is as follows:
Pressing fire-resisting cable in a kind of impact resistance LSOH anti-flaming of resistance to spray, including conductor, the outside of described conductor is with three layers altogether
The mode squeezed is extruded with conductor shield, crosslinked polyetylene insulated layer and insulation screen successively, outer wrapped at insulation screen
Copper strip shielding layer or copper wire are dredged and are reversely wrapped up shielding around adding copper strips, constitute the core of fire-proof medium-voltage cable, and three cores are stranded
Stranding, uses glass fibre yarn to fill during stranding, mica tape or ceramic fireproof silicone rubber band are wrapped；Squeeze outside cable core after stranding
Wrap a floor height oxygen index (OI) oxygen barrier layer, extrude one layer of fire-proof mud gear fire bed, the most wrapped glass in the outside of high oxygen index (OI) oxygen barrier layer again
Fibre ribbons or halogen-free high flame-retardant band；Finally extrude one layer of halogen-free and low-smoke flame-retardant polyolefin sheathed material.
Its further technical scheme is:
Described conductor uses copper conductor or aluminium alloy conductor；
Described conductor is that molded line is stranded or press circular configuration；
Described conductor is the copper conductor and the 8000 of ASTM B800-05 standard-required meeting GB/ T3953-2008 standard-required
Series alloys conductor；
Described packing material glass fibre yarn is alkali-free glass fiber yarn；
Described high oxygen index (OI) oxygen barrier layer material therefor oxygen index (OI) is more than 38, when extruding by THICKNESS CONTROL 3～4mm；
Described fire-proof mud gear fire bed when extruding by THICKNESS CONTROL 6～8mm；
Described sheath material is the halogen-free and low-smoke flame-retardant polyolefin sheathed material that oxygen index (OI) is more than 37.
Beneficial effects of the present invention is as follows:
Present configuration is compact, reasonable, easily manufactured, is that one has that length in service life, fire protecting performance be good and impact resistance, resistance to
The LSOH anti-flaming fire-proof medium-voltage cable of spray.
Have the further advantage that simultaneously
(1) use aluminum alloy materials as the conductor of midium voltage cable, can preferably replace copper conductor cable, and solve electrician's fine aluminium
The problems such as conductor is oxidizable, creep-resistant property is poor, and material cost is relatively low, economic performance is excellent；
(2) conductor uses molded line lay configuration, presses coefficient up to more than 0.95, can reduce conductor diameter 5%, save each operation
Raw material usage amount more than 10%；
(3) fire-proof mud that employing company oneself develops keeps off fire bed as cable, fill simultaneously use alkali-free glass fiber yarn and each layer it
Between glass band serve again good thermolysis, so this cable is not only by fire resistance test, and effect of dispelling the heat
The best, current-carrying capacity of cable is high；
(4) oversheath uses high oxygen index (OI) environmental-protection flame-retardant low-smoke halogen-free polyolefin to extrude, and when meeting fire burning, makes cable in combustion
Not dripping after burning, ensure the integrity after cable fire, fire resistance is good, and LSZH, to human body fanout free region, beneficially people
Escape.
Accompanying drawing explanation
Fig. 1 is the structural representation (embodiment one) of the present invention.
Fig. 2 is the structural representation (embodiment two) of the present invention.
Wherein: 1, conductor；2, conductor shield；3, crosslinked polyetylene insulated layer；4, insulation screen；5, copper strip shielding
Layer；6, glass fibre yarn；7, ceramic fireproof silicone rubber band；8, high oxygen index (OI) oxygen barrier layer；9, fire-proof mud gear fire bed；10, glass
Fibre ribbons；11, halogen-free and low-smoke flame-retardant polyolefin sheathed material.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the detailed description of the invention of the present invention is described.
As it is shown in figure 1, the impact resistance LSOH anti-flaming of resistance to spray of the present embodiment is pressed fire-resisting cable, including conductor 1, lead
The outside of body 1 is extruded with conductor shield 2, crosslinked polyetylene insulated layer 3 and insulation screen in the way of three-layer co-extruded successively
4, dredge at the outer wrapped copper strip shielding layer 5 of insulation screen 4 or copper wire and reversely wrap up shielding around adding copper strips, constitute fire-resistant middle piezoelectricity
The core of cable, three core twisted synthesizing cables, use glass fibre yarn 6 to fill during stranding, mica tape or ceramic fireproof silicone rubber
Band 7 is wrapped；Extrude a floor height oxygen index (OI) oxygen barrier layer 8 after stranding outside cable core, extrude one again in the outside of high oxygen index (OI) oxygen barrier layer 8
Layer fire-proof mud gear fire bed 9, the most wrapped glass fibre belt 10 or halogen-free high flame-retardant band；Finally extrude one layer of halogen-free and low-smoke flame-retardant polyolefin
Protective cover material 11.
Conductor 1 uses copper conductor or aluminium alloy conductor.
Conductor 1 is stranded for molded line or presses circular configuration.
Conductor 1 is the copper conductor and the 8000 of ASTM B800-05 standard-required meeting GB/ T3953-2008 standard-required
Series alloys conductor.
Packing material glass fibre yarn 6 is alkali-free glass fiber yarn.
High oxygen index (OI) oxygen barrier layer 8 material therefor oxygen index (OI) is more than 38, when extruding by THICKNESS CONTROL 3～4mm.
Fire-proof mud gear fire bed 9 when extruding by THICKNESS CONTROL 6～8mm.
Sheath material is the halogen-free and low-smoke flame-retardant polyolefin sheathed material 11 that oxygen index (OI) is more than 37.
Embodiment one
As it is shown in figure 1, a kind of impact resistance LSOH anti-flaming of resistance to spray fire-proof medium-voltage cable of the present invention, it includes centre
It is provided with a copper or aluminium alloy conductor 1, conductor is extruded with in the way of three-layer co-extruded conductor shield 2 successively, cross-links and gather
Ethylene insulating barrier 3, insulation screen 4, the outer wrapped copper strip shielding of insulation screen or copper wire are dredged and are reversely wrapped up shielding around adding copper strips
5；Conductor 1, conductor shielding, insulating barrier, insulation screen, metal screen layer constitute the core of fire-proof medium-voltage cable；Three cores
Twisted synthesizing cable, uses glass fibre yarn to fill 6, mica tape or ceramic fireproof silicone rubber band wrapped 7 during stranding；After stranding
A floor height oxygen index (OI) oxygen barrier layer 8 is extruded outside cable core；One layer of fire-proof mud gear fire bed 9, the most wrapped glass is extruded again outside oxygen barrier layer
Band or halogen-free high flame-retardant band 10；Finally extrude one layer of halogen-free and low-smoke flame-retardant polyolefin sheathed material 11.
Embodiment 2:
As in figure 2 it is shown, the present embodiment is with embodiment one difference: insulated wire cores is become one from three.
Above description is explanation of the invention, is not the restriction to invention, and limited range of the present invention sees right
Requirement, within protection scope of the present invention, can make any type of amendment.
Claims (8)
1. in the impact resistance LSOH anti-flaming of resistance to spray press fire-resisting cable, it is characterised in that: include conductor (1), described in lead
The outside of body (1) is extruded with conductor shield (2), crosslinked polyetylene insulated layer (3) and insulation in the way of three-layer co-extruded successively
Screen layer (4), dredges at insulation screen (4) the most wrapped copper strip shielding layer (5) or copper wire and reversely wraps up shielding, structure around adding copper strips
Become the core of fire-proof medium-voltage cable, three core twisted synthesizing cables, use glass fibre yarn (6) to fill during stranding, mica tape or ceramic
Fireproof silicone rubber band (7) is wrapped；Extrude floor height oxygen index (OI) oxygen barrier layer (8) after stranding outside cable core, high oxygen index (OI) every
The outside of oxygen layer (8) extrudes one layer of fire-proof mud gear fire bed (9), the most wrapped glass fibre belt (10) or halogen-free high flame-retardant band again；Finally
Extrude one layer of halogen-free and low-smoke flame-retardant polyolefin sheathed material (11).
2. a kind of impact resistance LSOH anti-flaming of resistance to spray as claimed in claim 1 presses fire-resisting cable, it is characterised in that: institute
State conductor (1) and use copper conductor or aluminium alloy conductor.
3. a kind of impact resistance LSOH anti-flaming of resistance to spray as claimed in claim 1 presses fire-resisting cable, it is characterised in that: institute
Stating conductor (1) is that molded line is stranded or press circular configuration.
4. a kind of impact resistance LSOH anti-flaming of resistance to spray as claimed in claim 1 presses fire-resisting cable, it is characterised in that: institute
State 8000 series that conductor (1) is copper conductor and the ASTM B800-05 standard-required meeting GB/ T3953-2008 standard-required
Aluminium alloy conductor.
5. a kind of impact resistance LSOH anti-flaming of resistance to spray as claimed in claim 1 presses fire-resisting cable, it is characterised in that: institute
Stating packing material glass fibre yarn (6) is alkali-free glass fiber yarn.
6. a kind of impact resistance LSOH anti-flaming of resistance to spray as claimed in claim 1 presses fire-resisting cable, it is characterised in that: institute
State high oxygen index (OI) oxygen barrier layer (8) material therefor oxygen index (OI) and be more than 38, when extruding by THICKNESS CONTROL 3～4mm.
7. a kind of impact resistance LSOH anti-flaming of resistance to spray as claimed in claim 1 presses fire-resisting cable, it is characterised in that: institute
State fire-proof mud gear fire bed (9) when extruding by THICKNESS CONTROL 6～8mm.
8. a kind of impact resistance LSOH anti-flaming of resistance to spray as claimed in claim 1 presses fire-resisting cable, it is characterised in that: institute
Stating sheath material is the halogen-free and low-smoke flame-retardant polyolefin sheathed material (11) that oxygen index (OI) is more than 37.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610600412.8A CN106057344A (en) | 2016-07-28 | 2016-07-28 | Impact-resistant spray-resistant, halogen-free, low-smoke flame-retardant medium voltage fire-resistant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610600412.8A CN106057344A (en) | 2016-07-28 | 2016-07-28 | Impact-resistant spray-resistant, halogen-free, low-smoke flame-retardant medium voltage fire-resistant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106057344A true CN106057344A (en) | 2016-10-26 |
Family
ID=57417826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610600412.8A Pending CN106057344A (en) | 2016-07-28 | 2016-07-28 | Impact-resistant spray-resistant, halogen-free, low-smoke flame-retardant medium voltage fire-resistant cable |
Country Status (1)
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| CN (1) | CN106057344A (en) |
Cited By (14)
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|---|---|---|---|---|
| CN107833690A (en) * | 2017-10-27 | 2018-03-23 | 天马远东电缆有限公司 | Multicore cable and its manufacture method are pressed in environment-friendly type fire resisting |
| CN108320847A (en) * | 2018-04-08 | 2018-07-24 | 宝上电缆有限公司 | A kind of damp-proof high fire-retardance single-core cable |
| CN108520801A (en) * | 2018-04-28 | 2018-09-11 | 无锡市恒汇电缆有限公司 | A kind of skyscraper pressure crane cable and preparation method thereof in oxygen barrier cooling fire resisting |
| CN109494009A (en) * | 2018-12-27 | 2019-03-19 | 上海胜华电气股份有限公司 | It is a kind of intelligence minerals in pressure fire prevention from monitoring cable |
| CN109887667A (en) * | 2019-01-15 | 2019-06-14 | 安徽天康(集团)股份有限公司 | A kind of control cable for flame-retardant fireproof boat and its manufacturing method |
| CN110136882A (en) * | 2019-04-26 | 2019-08-16 | 金杯电工衡阳电缆有限公司 | A flame-retardant and fire-resistant power cable containing ceramizable refractory materials |
| CN110534242A (en) * | 2019-09-09 | 2019-12-03 | 新疆胡杨线缆制造有限公司 | A kind of dedicated mineral insulation fireproof cable of elevator |
| CN110729078A (en) * | 2019-09-29 | 2020-01-24 | 江苏中煤电缆有限公司 | Low-smoke halogen-free flame-retardant fireproof photoelectric composite cable for coal mine |
| CN112071491A (en) * | 2020-09-28 | 2020-12-11 | 特变电工(德阳)电缆股份有限公司 | Medium-voltage fireproof cable and preparation method thereof |
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| CN113963853A (en) * | 2021-10-21 | 2022-01-21 | 绍兴电力设备有限公司 | A kind of flame-retardant, fire-resistant, waterproof, impact-resistant medium-voltage power cable and preparation method thereof |
| CN115394480A (en) * | 2022-08-31 | 2022-11-25 | 固达电线电缆(集团)有限公司 | High-temperature-resistant flexible mineral-insulated fireproof cable and preparation method thereof |
| WO2023024596A1 (en) * | 2021-08-24 | 2023-03-02 | 江苏亨通线缆科技有限公司 | Flame-retardant fire-resistant power cable resistant to spray and vibration |
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Cited By (15)
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Application publication date: 20161026 |