CN110634608A - Fire-fighting flame-retardant B1-grade wire and cable and manufacturing method thereof - Google Patents
Fire-fighting flame-retardant B1-grade wire and cable and manufacturing method thereof Download PDFInfo
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- CN110634608A CN110634608A CN201910978456.8A CN201910978456A CN110634608A CN 110634608 A CN110634608 A CN 110634608A CN 201910978456 A CN201910978456 A CN 201910978456A CN 110634608 A CN110634608 A CN 110634608A
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 10
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- 239000010410 layer Substances 0.000 claims abstract description 94
- 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
- 239000000779 smoke Substances 0.000 claims abstract description 11
- 238000002955 isolation Methods 0.000 claims abstract description 10
- 239000011241 protective layer Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 23
- 238000009413 insulation Methods 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 7
- 239000004744 fabric Substances 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 6
- 229920000098 polyolefin Polymers 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 5
- 235000019504 cigarettes Nutrition 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 229920002379 silicone rubber Polymers 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000005429 filling process Methods 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000004719 irradiation crosslinked polyethylene Substances 0.000 claims description 3
- 230000017105 transposition Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000009970 fire resistant effect Effects 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
-
- 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
- H01B7/0009—Details relating to the conductive cores
-
- 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
- H01B7/0045—Cable-harnesses
-
- 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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/22—Metal wires or tapes, e.g. made of steel
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- 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
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
-
- 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
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
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Abstract
The invention discloses a fire-retardant B1-grade wire and cable for fire fighting and a manufacturing method thereof, wherein the fire-retardant B1-grade wire and cable comprises a cable body, wherein the cable body sequentially comprises a cable core, a first wrapping layer, an oxygen isolation layer, a fireproof layer, an armor layer, a second wrapping layer and an outer protective layer from inside to outside, the cable core is formed by twisting a plurality of insulating wire cores, each insulating wire core comprises a conductive wire core and an insulating layer, the oxygen isolation layer is arranged in a gap between the insulating wire cores and between the first wrapping layer and the fireproof layer, the cable is reasonable and simple in structure, safe and stable in electrical performance, low in heat release and low in smoke yield under the fire disaster condition, the circuit integrity can be kept within 180min, powerful guarantee can be provided for the fire department to safely and quickly relieve the disaster, and secondary damage to personnel and property caused by the wire and cable is avoided.
Description
Technical Field
The invention relates to the technical field of electric wires and cables, in particular to a fire-fighting flame-retardant B1-grade electric wire and cable and a manufacturing method thereof.
Background
According to the related data, the fire hazard caused by the electric wire and the cable is relatively large in proportion in the fire hazard in China, the fire hazard accident can be further expanded due to the combustible insulating or sheath material of the electric wire and the cable during the fire hazard, the power supply and the circuit of the fire-fighting equipment can be directly burnt, the normal operation of the fire-fighting electrical equipment cannot be ensured, the fire extinguishing time is delayed, and greater personnel and property loss is caused; in addition, the heat, toxic gas and smoke emitted during the combustion of the wire and cable insulation and sheath material can further damage or harm the life and property, and prevent fire fighters from rescuing people and goods and materials. Therefore, the fire-fighting electric wire and cable play a crucial role in the occurrence of fire.
However, the flame retardant and fire resistant performance of the electric wire and cable for fire protection and power supply in the current market is only capable of meeting the requirements in GB/T19666-. According to the latest civil building design specifications and the national mandatory standard GB 31247-2014, the fire-fighting electric wire cable not only meets the requirement that the integrity of a fire-fighting equipment power supply and a line can be still maintained in a fire within 180min of the standard BS 6387:2013, but also meets the requirements of low heat release amount, low smoke yield and the like of the flame-retardant B1 level (namely the flame-retardant 1 level) specified in GB 31247-2014. In view of the existing cables, the above requirements are not yet satisfied.
Disclosure of Invention
Therefore, the invention provides a fire-fighting flame-retardant B1-grade wire and cable which has safe and stable electrical performance, low heat release and low smoke production in case of fire and can keep the integrity of a line within 180min, and a manufacturing method thereof.
In order to solve the problems, the invention adopts the following technical scheme:
the utility model provides a fire control is with fire-retardant B1 level wire and cable, includes the cable body, its characterized in that: the cable body is including cable core, first around the covering, separate oxygen layer, flame retardant coating, armor, second around covering, outer jacket from inside to outside in proper order, the cable core is formed by a plurality of insulation core transposition, insulation core includes conductive core and insulating layer, separate in the gap of oxygen layer setting between a plurality of insulation core and first around between covering and the flame retardant coating.
Preferably, a plurality of the insulated wire cores are contacted with each other and arranged in a polygon shape.
Preferably, the conductive wire core is made of an annealed copper material, the insulating layer is made of an ultraviolet irradiation crosslinked polyethylene insulating material, and the thickness of the insulating layer is 0.7 mm-2.4 mm.
Preferably, the first wrapping layer is made of alkali-free glass fiber gridding cloth, the first wrapping layer is wound on the cable core at intervals, and the mesh size of the first wrapping layer is 4-6 mm.
Preferably, the material that separates the oxygen layer is halogen-free low smoke flame retardant polyolefin, the oxygen index that separates the oxygen layer is 40% ~ 45%, first around the package between the flame retardant coating separate the oxygen layer thickness for 1.6mm ~ 2.0 mm.
Preferably, the fireproof layer is made of ceramic silicon rubber, and the thickness of the fireproof layer is 1.0-1.5 mm.
Preferably, the armor layer is armored by steel belts or steel wires.
Preferably, the second is around the covering around the package on the armor, the material of second around the covering is halogen-free low smoke flame retardant material, the thickness of second around the covering is 0.4mm ~ 0.8 mm.
Preferably, the outer jacket is extruded on the second wrapping layer, the outer jacket is made of halogen-free low-smoke high-flame-retardant polyolefin, and the thickness of the outer jacket is 1.8 mm-4.0 mm.
The invention also provides a manufacturing method of the fire-fighting flame-retardant B1-grade wire and cable, which is characterized by comprising the following steps:
step one, twisting a plurality of insulating wire cores into the cable core;
step two, spirally winding and fastening the cable core by adopting alkali-free glass fiber gridding cloth;
thirdly, the oxygen isolation layer is arranged in gaps among the plurality of insulated wire cores and on the surface of the cable core through a filling process and an extrusion molding process;
and fourthly, sequentially arranging a fireproof layer, an armor layer, a second wrapping layer and an outer protective layer outside the oxygen-isolating layer.
Compared with the prior art, the fire-retardant B1-grade wire and cable for fire fighting and the manufacturing method thereof provided by the invention comprise a cable body, wherein the cable body sequentially comprises a cable core, a first wrapping layer, an oxygen isolation layer, a fireproof layer, an armor layer, a second wrapping layer and an outer protective layer from inside to outside, the cable core is formed by twisting a plurality of insulating wire cores, each insulating wire core comprises a conductive wire core and an insulating layer, the oxygen isolation layer is arranged in a gap between the plurality of insulating wire cores and between the first wrapping layer and the fireproof layer, the cable is reasonable and simple in structure, the electrical performance is safe and stable in a fire disaster, the heat release is low, the smoke yield is low, the line integrity can be kept within 180min, powerful guarantee is provided for the fire department to safely and quickly rescue the fire, and secondary damage to personnel and property caused by the wire and cable is avoided.
Drawings
FIG. 1 is a schematic structural diagram of a fire-retardant B1-grade wire and cable for fire protection provided by the invention;
FIG. 2 is a table of fire-retardant performance tests of fire-retardant B1 grade wire and cable for fire protection provided by the invention;
FIG. 3 is a fire resistance test table of fire-retardant B1 grade wire and cable for fire protection.
In the figure: 1. the cable comprises a conductive wire core, 2 an insulating layer, 3 a first wrapping layer, 4 an oxygen isolating layer, 5 a fireproof layer, 6 an armor layer, 7 a second wrapping layer and 8 an outer protective layer.
Detailed Description
The invention is further explained by combining the attached figure 1, and the fire-retardant B1-grade wire cable for fire fighting comprises a cable body, wherein the cable body sequentially comprises a cable core, a first winding layer 3, an oxygen insulation layer 4, a fireproof layer 5, an armor layer 6, a second winding layer 7 and an outer protective layer 8 from inside to outside, the cable core is formed by stranding a plurality of insulating wire cores, each insulating wire core comprises a conductive wire core 1 and an insulating layer 2, and the oxygen insulation layer 4 is arranged in gaps among the plurality of insulating wire cores and between the first winding layer 3 and the fireproof layer 5.
Furthermore, in order to enable the cable core structure to be more stable, the plurality of insulated wire cores are mutually contacted and arranged in a polygon shape.
Further, in order to improve the conductivity and the insulating effect of the insulated wire core, the material of the conductive wire core 1 is an annealed copper material, the material of the insulating layer 2 is an ultraviolet irradiation crosslinked polyethylene insulating material, and the thickness of the insulating layer 2 is 0.7 mm-2.4 mm.
Further, in order to guarantee the roundness of the cable core, the first material of wrapping 3 is alkali-free glass fiber mesh cloth, the first clearance of wrapping 3 is wrapped on the cable core, the first mesh size of wrapping 3 is 4mm ~ 6mm, can provide great mesh for next process to it fills in the clearance between a plurality of insulation core to separate oxygen layer 4.
Further, in order to guarantee that the cable has good insulating properties in 180min under the conflagration condition, the material that separates oxygen layer 4 is halogen-free low smoke flame retardant polyolefin, the oxygen index that separates oxygen layer 4 is 40% ~ 45%, when the conflagration breaing out, separates oxygen layer 4 and is heated and separates out moisture, reaches better radiating effect, reduces the heat to the transmission of insulating core inlayer, slows down insulating core's temperature rise, makes insulating layer 2's temperature keep below 200 ℃, first is 1.6mm ~ 2.0mm around the 4 thickness on oxygen layer that separate between covering 3 and the flame retardant coating 5.
Furthermore, in order to improve the fireproof performance of the cable, the fireproof layer 5 is extruded or wrapped on the oxygen isolation layer 4, the fireproof layer 5 is made of ceramic silicon rubber, the ceramic silicon rubber is rapidly sintered into a hard ceramic shell under the condition of flameless high temperature above 500 ℃ or flame ablation above 620 ℃, the permeation combustion effect of flame is achieved, the heat transfer is prevented, the outward volatilization of water separated out from the oxygen isolation layer 4 at high temperature can be prevented, and the thickness of the fireproof layer 5 is 1.0-1.5 mm.
Furthermore, in order to enable the cable to have better compression resistance or tensile resistance, the armor layer 6 is formed by steel belts or steel wires in an armored mode, and when steel belts are used for armoring, the cable has better compression resistance; when the steel wire armor is adopted, the cable can have better tensile property, and the requirements of a fire-fighting system on the cable can be met by various armor forms.
Further, for the structural stability and the fire resistance of improvement cable, the second winds covering 7 around covering on armor 6, the second is for there being no halogen low smoke flame retardant material around the material of covering 7, there is the acute angle at steel band or steel wire edge when preventing the cable bending, lead to outer jacket 8 high temperature down to cause the fracture because of stress concentration, in addition, because armor 6 is the metal material, heat-conduction is very fast, the heat can be with the help of armor 6 rapid transmission for outer jacket 8's burning drops, the second can play better fire behaviour around covering 7 this moment to avoid the emergence of above harmful phenomena, prevent that outer jacket 8 from causing phenomenons such as drippage because of the structure is unreasonable, the thickness of second around covering 7 is 0.4mm ~ 0.8 mm.
Further, in order to improve the cable fire resistance and reduce cable burning and produce the cigarette volume, outer jacket 8 is crowded to be wrapped in the second around covering 7, outer jacket 8's material is for there being not steamed low cigarette high flame retardant polyolefin, and this material has that the incrustation performance is strong, produce the cigarette volume low grade characteristics under the high temperature, can keep out the impact of naked light under the conflagration condition, and effectual protection cable inlayer does not receive the ignition of naked light, outer jacket 8's thickness is 1.8mm ~ 4.0 mm.
The invention also provides a manufacturing method of the fire-fighting flame-retardant B1-grade wire and cable, which comprises the following steps:
step one, twisting a plurality of insulating wire cores into the cable core;
step two, spirally winding and tightening the cable core by adopting alkali-free glass fiber gridding cloth (namely the first winding layer 3);
thirdly, arranging the oxygen isolation layer 4 in gaps among the plurality of insulated wire cores and on the surface of the cable core through a filling process and an extrusion molding process;
and fourthly, sequentially arranging a fireproof layer 5, an armor layer 6, a second wrapping layer 7 and an outer protective layer 8 outside the oxygen insulation layer 4.
As shown in the attached figures 2 and 3, the fire-retardant B1-grade wire cable for fire protection provided by the invention has the performance meeting the requirements of the fire-resistant test of BS 6387:2013 on the basis of meeting the test projects of GB/T19666-.
In addition, the present invention is not limited to the above embodiments, and the technical effects of the present invention can be achieved by substantially the same means, which are within the scope of the present invention.
Claims (10)
1. The utility model provides a fire control is with fire-retardant B1 level wire and cable, includes the cable body, its characterized in that: cable body is from inside to outside in proper order including cable core, first around covering (3), separate oxygen layer (4), flame retardant coating (5), armor (6), second around covering (7), outer jacket (8), the cable core is formed by a plurality of insulation core transposition, insulation core includes conductive core (1) and insulating layer (2), separate oxygen layer (4) and set up in the gap between a plurality of insulation core and first around between covering (3) and flame retardant coating (5).
2. The fire-fighting flame-retardant B1-grade wire and cable according to claim 1, wherein: the insulated wire cores are mutually contacted and arranged in a polygon shape.
3. The fire-fighting flame-retardant B1-grade wire and cable according to claim 1, wherein: the material of the conductive wire core (1) is an annealed copper material, the material of the insulating layer (2) is an ultraviolet irradiation crosslinked polyethylene insulating material, and the thickness of the insulating layer (2) is 0.7-2.4 mm.
4. The fire-fighting flame-retardant B1-grade wire and cable according to claim 1, wherein: the first wrapping layer (3) is made of alkali-free glass fiber gridding cloth, the first wrapping layer (3) is wound on the cable core at intervals, and the mesh size of the first wrapping layer (3) is 4-6 mm.
5. The fire-fighting flame-retardant B1-grade wire and cable according to claim 1, wherein: the material that separates oxygen layer (4) is for there being not steamed low fire-retardant polyolefin of cigarette, the oxygen index that separates oxygen layer (4) is 40% ~ 45%, first around covering (3) and flame retardant coating (5) between separate oxygen layer (4) thickness be 1.6mm ~ 2.0 mm.
6. The fire-fighting flame-retardant B1-grade wire and cable according to claim 1, wherein: the fireproof layer (5) is extruded or wrapped on the oxygen isolation layer (4), the fireproof layer (5) is made of ceramic silicon rubber, and the thickness of the fireproof layer (5) is 1.0-1.5 mm.
7. The fire-fighting flame-retardant B1-grade wire and cable according to claim 1, wherein: the armor layer (6) is formed by steel belts or steel wires in an armored mode.
8. The fire-fighting flame-retardant B1-grade wire and cable according to claim 1, wherein: the second is around covering (7) around the package on armor (6), the second is for there being no halogen-free low smoke flame retardant material around the material of covering (7), the second is 0.4mm ~ 0.8mm around the thickness of covering (7).
9. The fire-fighting flame-retardant B1-grade wire and cable according to claim 1, wherein: outer jacket (8) are crowded to be wrapped on second is around covering (7), the material of outer jacket (8) is for there being not steamed low cigarette high flame retardant polyolefin, the thickness of outer jacket (8) is 1.8mm ~ 4.0 mm.
10. A manufacturing method of fire-fighting flame-retardant B1-grade wire and cable is characterized by comprising the following steps:
step one, twisting a plurality of insulating wire cores into the cable core;
step two, spirally winding and fastening the cable core by adopting alkali-free glass fiber gridding cloth;
thirdly, the oxygen isolation layer (4) is arranged in gaps among the plurality of insulated wire cores and on the surface of the cable core through a filling process and an extrusion molding process;
and fourthly, sequentially arranging a fireproof layer (5), an armor layer (6), a second wrapping layer (7) and an outer protective layer (8) outside the oxygen insulation layer (4).
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113035428A (en) * | 2021-02-02 | 2021-06-25 | 安徽铁信光电科技有限公司 | Flame-retardant digital signal cable for rail transit and production process |
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CN207602277U (en) * | 2017-10-27 | 2018-07-10 | 江苏赛特电气有限公司 | A kind of novel low smoke zero halogen fire resistant fireproof control cable |
JP2018181516A (en) * | 2017-04-07 | 2018-11-15 | 矢崎エナジーシステム株式会社 | Fire-resistant cable |
CN208861718U (en) * | 2018-10-25 | 2019-05-14 | 江苏亨通电力电缆有限公司 | B1 grades of environmentally protective medium-pressure power cables of multistoried building |
CN211604760U (en) * | 2019-10-15 | 2020-09-29 | 广州南洋电缆有限公司 | Fire control is with fire-retardant B1 level wire and cable |
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2019
- 2019-10-15 CN CN201910978456.8A patent/CN110634608A/en active Pending
Patent Citations (5)
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CN205038996U (en) * | 2015-10-15 | 2016-02-17 | 新亚特电缆股份有限公司 | Heat -resisting fire -retardant fire prevention control cable |
JP2018181516A (en) * | 2017-04-07 | 2018-11-15 | 矢崎エナジーシステム株式会社 | Fire-resistant cable |
CN207602277U (en) * | 2017-10-27 | 2018-07-10 | 江苏赛特电气有限公司 | A kind of novel low smoke zero halogen fire resistant fireproof control cable |
CN208861718U (en) * | 2018-10-25 | 2019-05-14 | 江苏亨通电力电缆有限公司 | B1 grades of environmentally protective medium-pressure power cables of multistoried building |
CN211604760U (en) * | 2019-10-15 | 2020-09-29 | 广州南洋电缆有限公司 | Fire control is with fire-retardant B1 level wire and cable |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113035428A (en) * | 2021-02-02 | 2021-06-25 | 安徽铁信光电科技有限公司 | Flame-retardant digital signal cable for rail transit and production process |
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