CN211604717U - Safe and environment-friendly composite cable with combustion performance of B1 level - Google Patents
Safe and environment-friendly composite cable with combustion performance of B1 level Download PDFInfo
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- CN211604717U CN211604717U CN202020430396.4U CN202020430396U CN211604717U CN 211604717 U CN211604717 U CN 211604717U CN 202020430396 U CN202020430396 U CN 202020430396U CN 211604717 U CN211604717 U CN 211604717U
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Abstract
The utility model discloses a combustion performance B1 level safety environmental protection composite cable, which comprises a cable core, an inner glass fiber tape wrapping layer, an inner liner layer, a copper wire braided shielding layer, an outer glass fiber tape wrapping layer and an outer sheath, wherein the inner glass fiber tape wrapping layer, the inner liner layer, the copper wire braided shielding layer, the outer glass fiber tape wrapping layer and the outer sheath are sequentially wrapped outside the cable core from inside to outside; the cable core comprises four power wire cores and two control wire cores which are twisted. The utility model discloses a control core and cable core all adopt two-layer glass fiber tape around the covering outward and wrap, the flame retardant property and the compactness of cable have been improved, can reduce in the finite space who lays and arrange, the cable core intussuseption is filled with low smoke and zero halogen packing rope, the tensile anti-torsion performance of cable has further been improved, compactness and fire-retardant low cigarette low toxicity ability, can satisfy B1 level combustion performance requirement, the cable core has woven the copper wire outward and has woven the shielding layer, under the condition of guaranteeing electromagnetic shield interference, the multilayer flame retardant structure has been designed, the electrical property under the abominable circumstances of catching fire has been guaranteed, win the time for the rescue action.
Description
Technical Field
The utility model relates to a cable field especially relates to a burning performance B1 level safety ring protects composite cable.
Background
Along with the increase of the number of times of fire occurrence in recent years, the safety awareness of people is greatly improved, and the requirements on the selection of building materials and the performance of cables are higher and higher. At present, the types of cables and wiring wires used in the building industry are various, the combustion performance is different, greater potential safety hazards exist in the use process, and toxic gas generated by combustion is extremely unfavorable for the development of rescue work when a fire accident happens. Therefore, national standards put higher demands on the use of cables for important buildings, and will replace the former cables with environment-friendly cables having high flame retardant property and containing no halogen.
At present, combustion performances such as low smoke zero halogen, smoke density and the like are considered for control cables on the market, indexes such as heat release, smoke release, dripping, delayed toxicity and the like under the fire condition are not considered, and the performance requirements of new standards on building cables cannot be met. Therefore, it is necessary to design a cable with high flame retardant property and high smoke release and toxicity.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a fire behaviour height, the high combustion performance B1 level safety ring protects composite cable of performance such as flue gas release, toxicity.
Realize the utility model discloses the first technical scheme of purpose is: a safe and environment-friendly comprehensive cable with combustion performance of level B1 comprises a cable core, and an inner glass fiber tape wrapping layer, an inner liner layer, a copper wire braided shielding layer, an outer glass fiber tape wrapping layer and an outer sheath which are sequentially wrapped outside the cable core from inside to outside; the cable core comprises four power wire cores, two control wire cores and a low-smoke halogen-free filling rope filled between the power wire cores and the control wire cores, wherein the four power wire cores and the two control wire cores are stranded; each control wire core comprises two pair-twisted insulating wire cores and a control wire core glass fiber tape wrapping layer, a control wire core copper wire braided shielding layer and a control wire core outer glass fiber tape wrapping layer which are sequentially wrapped outside the two pair-twisted insulating wire cores.
The thickness of the outer sheath is 1.8 mm; the outer sheath is made of flame-retardant low-smoke halogen-free polyolefin material; the flame-retardant low-smoke halogen-free polyolefin material comprises the following components in parts: 25-35 parts of ethylene-vinyl acetate copolymer, 65-75 parts of linear low-density polyethylene, 40-50 parts of composite reinforcing agent, 0.8-1.2 parts of lubricant, 0.9-1.4 parts of ultraviolet absorbent, 73-89 parts of flame retardant and 0.6-1.1 parts of antioxidant. The composite reinforcing agent is one or more of carbon black, acetylene black, white carbon black and diatomite, the lubricant is zinc stearate, the flame retardant is magnesium hydroxide, the antioxidant is one or more of antioxidant DNP, antioxidant RD and antioxidant SP, and the ultraviolet absorbent is hydroxyl silicone oil.
The insulating wire core comprises a control wire core conductor and a control wire core insulating layer wrapped outside the control wire core conductor; the stranding pitch of the two insulated wire cores is not more than 12 times.
And a flame-retardant filling rope is filled between the two insulating wire cores and the glass fiber tape wrapping layer in the control wire core. The inner glass fiber tape wrapping layer is provided with 2 layers, each layer is formed by wrapping glass fiber tapes with the thickness of 0.2mm and the width of 35-45 mm, and the covering rate is 15% -20%.
The copper wire braided shielding layer is braided by 8 copper wires with the wire diameter of 0.17mm, the braiding density is more than or equal to 80%, the braiding angle is 45 degrees, and the number of the ingots is 32.
The outer glass fiber tape wrapping layer is provided with 2 layers, each layer is formed by wrapping glass fiber tapes with the thickness of 0.2mm and the width of 40-50 mm, and the covering rate is 15% -20%.
The utility model discloses still provide following technical scheme in order to help understanding the utility model discloses: a production process of a safe and environment-friendly comprehensive cable with combustion performance of B1 level is used for producing the safe and environment-friendly comprehensive cable with combustion performance of B1 level, and comprises the following steps:
s1: manufacturing a power wire core;
s2: manufacturing a control wire core;
s3: the power wire core and the control wire core are made into a cable core;
s4: an inner glass fiber tape wrapping layer is wrapped outside the cable core;
s5: extruding and wrapping the inner liner outside the inner glass fiber tape wrapping layer;
s6: weaving a copper wire braided shielding layer outside the lining layer;
s7: wrapping an outer glass fiber tape wrapping layer outside the copper wire braided shielding layer;
s8: and the outer sheath is extruded on the outer glass fiber tape wrapping layer.
The step S1 specifically includes: and a power wire core insulating layer is extruded outside the power wire core conductor.
The step S2 specifically includes: the control wire core conductor is externally extruded with a control wire core insulating layer to form an insulating wire core, the two insulating wire cores are twisted in pairs, the twisting pitch is not more than 12 times, then a flame-retardant filling rope is filled in the gap between the two insulating wire cores, and finally the twisted insulating wire cores are sequentially wrapped with a control wire core glass fiber tape wrapping layer, a control wire core copper wire braided shielding layer and a control wire core outer glass fiber tape wrapping layer.
The step S3 specifically includes: the four power wire cores and the two control wire cores are distributed in an annular shape, and the adjacent two wire cores are tightly attached to form a cable core; and a low-smoke halogen-free filling rope is filled in the center of the cable core.
The two control wire cores are preferably arranged closely, so that the overall flexibility of the cable is increased, the risk of core breakage of the signal wire cores in the moving process is reduced, and the interference of the main wire core on signal transmission of the signal wire cores is improved.
The step S4 specifically includes: and two layers of glass fiber tape wrapping layers are wrapped outside the cable core, each layer is formed by wrapping glass fiber tapes with the thickness of 0.2mm and the width of 35-45 mm, and the covering rate is 15% -20%.
The step S5 specifically includes: adopt the crowded inner liner that wraps thickness for 1.2mm of half crowded tubular formula outside including the glass fiber tape around the covering, adopt half crowded tubular formula can prevent effectively that the glass fiber tape from retreating the card mould, better cover on the band surface, reduce oxygen and get into when burning, improve flame retardant efficiency, the material chooses for use low smoke and zero halogen to separate the oxygen material. The low-smoke halogen-free oxygen insulation material comprises the following components in parts: 25 parts of ethylene-vinyl acetate copolymer, 75 parts of linear low-density polyethylene, 40 parts of composite reinforcing agent (26 parts of carbon black, 7 parts of acetylene carbon black and 7 parts of white carbon black), 1.2 parts of zinc stearate, 1.0 part of hydroxyl silicone oil, 73 parts of magnesium hydroxide and 1.1 parts of antioxidant DNP, and has the advantages of good flame retardant property, low combustion toxicity and small smoke.
The inner liner adopts half crowded tubular can prevent effectively that the glass fiber tape from retreating the card mould, can keep certain extrusion pressure simultaneously, makes the inseparable cladding of inner liner on wrapping the covering, reduces the air gap.
The step S6 specifically includes: and carrying out braided shielding on the outside of the lining layer by adopting copper wires to prepare a copper wire braided shielding layer, wherein 8 copper wires with the wire diameter of 0.17mm are adopted for braiding, the braiding density is more than or equal to 80 percent, the braiding angle is 45 degrees, and the number of the ingots is 32.
The step S7 specifically includes: the copper wire braided shielding layer is wrapped with two layers of outer glass fiber tape wrapping layers, each layer is formed by wrapping glass fiber tapes with the thickness of 0.2mm and the width of 40-50 mm, and the covering rate is 15% -20%.
The step S8 specifically includes: and an outer sheath with the thickness of 1.8mm is extruded outside the wrapping layer of the outer glass fiber tape by adopting a flame-retardant low-smoke halogen-free polyolefin material.
The flame-retardant low-smoke halogen-free polyolefin material comprises the following components in parts: 25-35 parts of ethylene-vinyl acetate copolymer, 65-75 parts of linear low-density polyethylene, 40-50 parts of composite reinforcing agent, 0.8-1.2 parts of lubricant, 0.9-1.4 parts of ultraviolet absorbent, 73-89 parts of flame retardant and 0.6-1.1 parts of antioxidant.
By adopting the technical scheme, the utility model discloses following beneficial effect has:
(1) the utility model discloses power transmission performance and signal control performance have been synthesized, be provided with the cable core that contains 2 control core and four power sinle silks, control core and cable core all adopt two-layer glass fiber tape outward around the covering around the package, the flame retardant property and the compactness of cable have been improved, can reduce in the finite space who lays and arrange, the cable core intussuseption is filled with low smoke and zero halogen filling rope, the tensile anti-torsion performance of cable has further been improved, compactness and fire-retardant low smoke and low toxicity ability, can satisfy B1 level combustion performance requirement, the cable core has been woven outward the copper wire and has been woven the shielding layer, under the condition of guaranteeing electromagnetic shield interference, the fire-retardant structure of multilayer has been designed, the electrical property under the abominable condition of catching fire has been guaranteed, win valuable time for.
(2) The utility model discloses an insulation core is equipped with control core insulation layer, and fire-retardant insulating properties is good, 2 insulation core transposition, and tensile antitorque bent ability is high, and transmission performance is good.
(3) The utility model discloses a control wire in-core glass fiber tape has fire-retardant packing rope around the intussuseption of package, has improved the compactness of control core, has strengthened the tensile antitorque circular characteristic of control core, has improved the fire resistance of control core.
(4) The utility model discloses an interior glass fiber tape is equipped with two-layerly around the covering, and it is suitable to take the lid rate, has improved the compactness of cable, has further increased fire behaviour.
(5) The utility model discloses a copper wire is woven the copper wire and is woven the shielding layer, and the silk footpath is little, and it is high to weave the degree, and shielding performance is good.
(6) The utility model discloses an outer glass fiber tape is equipped with two-layerly around the covering, and it is suitable to take the lid rate, has improved the compactness of cable, advances one
Drawings
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is given in conjunction with the accompanying drawings, in which
Fig. 1 is a schematic structural diagram of the present invention.
The reference numbers in the drawings are as follows:
the inner glass fiber tape wrapping layer 1, the inner liner layer 2, the copper wire braided shielding layer 3, the outer glass fiber tape wrapping layer 4 and the outer sheath 5;
the power cable core comprises a power cable core 6, a power cable core conductor 6-1 and a power cable core insulating layer 6-2;
the cable comprises a control wire core 7, an insulation wire core 7-1, a control wire core glass fiber tape wrapping layer 7-2, a control wire core copper wire braided shielding layer 7-3, a control wire core outer glass fiber tape wrapping layer 7-4, a control wire core conductor 7-5 and a control wire core insulation layer 7-6.
Detailed Description
(example 1)
The safe and environment-friendly comprehensive cable with the combustion performance of B1 level comprises a cable core and an inner glass fiber tape wrapping layer 1, an inner liner layer 2, a copper wire braided shielding layer 3, an outer glass fiber tape wrapping layer 4 and an outer sheath 5 which are sequentially wrapped outside the cable core from inside to outside. The cable core comprises four power wire cores 6 and two control wire cores 7 which are twisted, and a low-smoke halogen-free filling rope 8 filled between the power wire cores 6 and the control wire cores 7. Each control wire core 7 comprises two oppositely twisted insulating wire cores 7-1, a control wire core glass fiber tape wrapping layer 7-2, a control wire core copper wire braided shielding layer 7-3 and a control wire core outer glass fiber tape wrapping layer 7-4, wherein the control wire core inner glass fiber tape wrapping layers are sequentially wrapped outside the two oppositely twisted insulating wire cores 7-1. The specific structure of the cable is shown in figure 1.
In order to enhance the flame retardant property, the outer sheath 5 is made of flame retardant low smoke halogen-free polyolefin material. The outer sheath 5 is 1.8mm thick.
The flame-retardant low-smoke halogen-free polyolefin material of the outer sheath 5 comprises the following components in parts: 25 parts of ethylene-vinyl acetate copolymer, 75 parts of linear low-density polyethylene, 40 parts of composite reinforcing agent (30 parts of carbon black, 5 parts of acetylene carbon black and 5 parts of white carbon black), 1.2 parts of zinc stearate, 1.0 part of hydroxy silicone oil, 73 parts of magnesium hydroxide and 1.1 parts of antioxidant DNP. Good flame retardant property, low combustion toxicity and small smoke. Wherein, the magnesium hydroxide is used as a main flame retardant, the hard zinc is used as a lubricant, and the hydroxyl silicone oil is used as an ultraviolet absorbent.
In order to reduce the cable diameter, four power wire cores 6 and two control wire cores 7 are arranged in an annular mode around the axis of the cable core, and two adjacent wire cores are tightly attached.
In order to increase the insulating property of the power wire core 6, the power wire core 6 comprises a power wire core conductor 6-1 and a power wire core insulating layer 6-2 wrapped outside the power wire core conductor 6-1.
In order to increase the tensile and torsion resistance and the insulation properties of the control wire core 7. The insulated wire core 7-1 comprises a control wire core conductor 7-5 and a control wire core insulating layer 7-6 wrapped outside the control wire core conductor 7-5. The stranding pitch of the two insulated wire cores 7-1 is not more than 12 times.
In order to improve the tightness and the flame retardant property of the control wire core 7, a flame retardant filling rope 7-7 is filled between the two insulation wire cores 7-1 and the glass fiber tape wrapping layer 7-2 in the control wire core.
In order to increase the tightness of the cable and increase the tensile and torsion resistance, the inner glass fiber tape wrapping layer 1 is provided with 2 layers, each layer is formed by wrapping glass fiber tapes with the thickness of 0.2mm and the width of 35-45 mm, and the covering rate is 15% -20%.
In order to increase the flame retardant property of the cable, the thickness of the lining layer 2 is 1.2mm, and a low-smoke halogen-free oxygen insulation material is adopted. The low-smoke halogen-free oxygen insulation material of the inner liner layer 2 comprises the following components in parts: 25 parts of ethylene-vinyl acetate copolymer, 75 parts of linear low-density polyethylene, 40 parts of composite reinforcing agent (26 parts of carbon black, 7 parts of acetylene carbon black and 7 parts of white carbon black), 1.2 parts of zinc stearate, 1.0 part of hydroxyl silicone oil, 73 parts of magnesium hydroxide and 1.1 parts of antioxidant DNP, and has the advantages of good flame retardant property, low combustion toxicity and small smoke.
In order to improve the shielding performance and the tensile and anti-torsion performance of the cable, the copper wire braided shielding layer 3 adopts 8 copper wires with the wire diameter of 0.17mm, the braiding density is more than or equal to 80 percent, and the number of the ingots is 32.
In order to further increase the tightness, the tensile strength and the torsion resistance of the cable, 2 layers of the outer glass fiber tape wrapping layer 4 are arranged, each layer is formed by wrapping glass fiber tapes with the thickness of 0.2mm and the width of 40-50 mm, and the covering rate is 15% -20%.
The embodiment also provides the following technical scheme to help understand the combustion performance B1 level safety and environmental protection composite cable of the embodiment: the production process for producing the safe and environment-friendly comprehensive cable with the combustion performance of B1 level comprises the following steps:
s1: manufacturing the power wire core 6: and a power wire core insulating layer 6-2 is extruded outside the power wire core conductor 6-1.
S2: manufacturing a control wire core 7: and extruding a control wire core insulating layer 7-6 outside the control wire core conductor 7-5 to manufacture an insulating wire core 7-1, twisting the two wires in pair, wherein the twisting pitch is not more than 12 times, then filling a flame-retardant filling rope 7-7 in the gap between the two insulating wire cores 7-1, and finally sequentially wrapping a control wire core glass fiber tape wrapping layer 7-2, a control wire core copper wire braided shielding layer 7-3 and a control wire core outer glass fiber tape wrapping layer 7-4 outside the twisted insulating wire core 7-1.
S3: the power wire core 6 and the control wire core 7 are cabled to be made into a cable core: the four power wire cores 6 and the two control wire cores 7 are distributed in an annular shape. And tightly attaching two adjacent wire cores to form the cable core. The center of the cable core is filled with a low-smoke halogen-free filling rope 8.
The two control wire cores 7 are preferably arranged in close proximity.
S4: the cable core is wrapped outward and is wrapped interior glass fiber tape and wrap 1: and two layers of glass fiber tape wrapping layers 1 are wrapped outside the cable core, each layer is formed by wrapping glass fiber tapes with the thickness of 0.2mm and the width of 40-50 mm, and the covering rate is 15% -20%.
S5: an inner liner layer 2 is extruded outside the inner glass fiber tape wrapping layer 1: including glass fiber tape adopts the crowded inner liner 2 that wraps thickness for 1.2mm of half crowded tubular around covering 1 outward, and the material chooses for use low smoke and zero halogen to separate the oxygen material, adopts half crowded tubular can better cover on the band surface, reduces oxygen and gets into when burning, improves flame retardant efficiency.
S6: weaving a copper wire braided shielding layer 3 outside the lining layer 2: and (3) carrying out braided shielding by adopting copper wires outside the lining layer 2 to prepare a copper wire braided shielding layer 3, wherein the diameter of the copper wires for braiding is 0.17mm, the number of the copper wires for braiding is 32, the number of the copper wires for braiding is 8, the braiding density is more than or equal to 80%, and the braiding angle is 45 degrees.
S7: weave shielding layer 3 at the copper wire and wrap outer glass fiber tape around covering 4 outward: and (3) wrapping two layers of outer glass fiber tape wrapping layers 4 outside the copper wire braided shielding layer 3, wherein the thickness of each layer is 0.2mm, the width is 40-50 mm, and the cover overlapping rate is 15% -20%.
S8: and extruding an outer sheath 5 on the outer glass fiber tape wrapping layer 4: an outer sheath 5 with the thickness of 1.8mm is extruded by adopting a flame-retardant low-smoke halogen-free polyolefin material outside the outer glass fiber tape wrapping layer 4.
The flame-retardant low-smoke halogen-free polyolefin material adopts the formula of the flame-retardant low-smoke halogen-free polyolefin material.
Compared with the existing cable, the cable of the embodiment mainly has the advantages of small laying occupied space, good conductivity, high flame retardant property, excellent physical and chemical properties, good shielding property and the like.
The specific parameters are shown in Table 1.
(example 2)
This embodiment is substantially the same as embodiment 1 except that: the flame-retardant low-smoke halogen-free polyolefin material comprises the following components in parts: 30 parts of ethylene-vinyl acetate copolymer, 70 parts of linear low-density polyethylene, 44 parts of composite reinforcing agent (acetylene carbon black 32 parts, 8 parts of white carbon black and 4 parts of diatomite), 1.1 parts of zinc stearate, 1.2 parts of hydroxyl silicone oil, 79 parts of magnesium hydroxide and 0.9 part of anti-aging agent RD. The inner liner layer adopts a low-smoke halogen-free oxygen insulation material, and the low-smoke halogen-free material comprises the following components in parts: 30 parts of ethylene-vinyl acetate copolymer, 72 parts of linear low-density polyethylene, 45 parts of composite reinforcing agent, 0.9 part of zinc stearate, 1.1 parts of hydroxyl silicone oil, 80 parts of magnesium hydroxide and 1.1 parts of antioxidant DNP.
The specific parameters are shown in Table 1.
(example 3)
This embodiment is substantially the same as embodiment 1 except that: the flame-retardant low-smoke halogen-free polyolefin material comprises the following components in parts: 35 parts of ethylene-vinyl acetate copolymer, 65 parts of linear low-density polyethylene, 50 parts of composite reinforcing agent (28 parts of carbon black, 10 parts of white carbon black, 8 parts of acetylene carbon black and 4 parts of diatomite), 0.8 part of zinc stearate, 1.4 parts of hydroxyl silicone oil, 89 parts of magnesium hydroxide and 0.9 part of antioxidant DNP.
The inner liner layer adopts a low-smoke halogen-free oxygen insulation material, and the low-smoke halogen-free material comprises the following components in parts: 25 parts of ethylene-vinyl acetate copolymer, 70 parts of linear low-density polyethylene, 40 parts of composite reinforcing agent, 0.9 part of zinc stearate, 1.1 parts of hydroxyl silicone oil, 75 parts of magnesium hydroxide and 1.0 part of antioxidant DNP.
The specific parameters are shown in Table 1.
(example 4)
This embodiment is substantially the same as embodiment 1 except that: the flame-retardant low-smoke halogen-free polyolefin material comprises the following components in parts: 28 parts of ethylene-vinyl acetate copolymer, 73 parts of linear low-density polyethylene, 45 parts of composite reinforcing agent (25 parts of carbon black, 12 parts of white carbon black and 8 parts of diatomite), 1 part of zinc stearate, 1.2 parts of hydroxyl silicone oil, 85 parts of magnesium hydroxide and 0.6 part of anti-aging agent SP.
The inner liner layer adopts a low-smoke halogen-free oxygen insulation material, and the low-smoke halogen-free material comprises the following components in parts: 28 parts of ethylene-vinyl acetate copolymer, 74 parts of linear low-density polyethylene, 44 parts of composite reinforcing agent, 0.9 part of zinc stearate, 1.1 parts of hydroxyl silicone oil, 75 parts of magnesium hydroxide and 1.0 part of antioxidant DNP.
The specific parameters are shown in Table 1.
Table 1 comparison of cable parameters for different examples
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. The utility model provides a burning performance B1 level safety ring protects composite cable which characterized in that: the cable comprises a cable core, and an inner glass fiber tape wrapping layer (1), an inner liner layer (2), a copper wire braided shielding layer (3), an outer glass fiber tape wrapping layer (4) and an outer sheath (5) which are sequentially wrapped outside the cable core from inside to outside; the cable core comprises four power wire cores (6), two control wire cores (7) and a low-smoke halogen-free filling rope (8) filled between the power wire cores (6) and the control wire cores (7) in a twisted mode; each control wire core (7) comprises two pair-twisted insulating wire cores (7-1) and a control wire core glass fiber tape wrapping layer (7-2), a control wire core copper wire braided shielding layer (7-3) and a control wire core outer glass fiber tape wrapping layer (7-4) which are sequentially wrapped outside the two pair-twisted insulating wire cores (7-1).
2. The safety and environmental protection composite cable with the combustion performance of grade B1 as claimed in claim 1, wherein: the insulation wire core (7-1) comprises a control wire core conductor (7-5) and a control wire core insulation layer (7-6) wrapped outside the control wire core conductor (7-5); the stranding pitch of the two insulated wire cores (7-1) is not more than 12 times.
3. The safety and environmental protection composite cable with the combustion performance of grade B1 as claimed in claim 1, wherein: and a flame-retardant filling rope (7-7) is filled between the two insulating wire cores (7-1) and the glass fiber tape wrapping layer (7-2) in the control wire core.
4. The safety and environmental protection composite cable with the combustion performance of grade B1 as claimed in claim 1, wherein: the inner glass fiber tape wrapping layer (1) is provided with 2 layers, each layer is formed by wrapping glass fiber tapes with the thickness of 0.2mm and the width of 35-45 mm, and the covering rate is 15% -20%.
5. The safety and environmental protection composite cable with the combustion performance of grade B1 as claimed in claim 1, wherein: the copper wire braided shielding layer (3) is braided by 8 copper wires with the wire diameter of 0.17mm, the braiding density is more than or equal to 80 percent, the braiding angle is 45 degrees, and the number of the ingots is 32.
6. The safety and environmental protection composite cable with the combustion performance of grade B1 as claimed in claim 1, wherein: the outer glass fiber tape wrapping layer (4) is provided with 2 layers, each layer is formed by wrapping glass fiber tapes with the thickness of 0.2mm and the width of 40-50 mm, and the covering rate is 15% -20%.
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| CN202020430396.4U CN211604717U (en) | 2020-03-28 | 2020-03-28 | Safe and environment-friendly composite cable with combustion performance of B1 level |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111326275A (en) * | 2020-03-28 | 2020-06-23 | 远东电缆有限公司 | Safe and environment-friendly composite cable with combustion performance of B1 level and production process thereof |
| WO2022095093A1 (en) * | 2020-11-05 | 2022-05-12 | 江苏亨通电力电缆有限公司 | 66 kv torsion-resistant cable for wind turbine power transmission, and preparation method therefor and use thereof |
-
2020
- 2020-03-28 CN CN202020430396.4U patent/CN211604717U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111326275A (en) * | 2020-03-28 | 2020-06-23 | 远东电缆有限公司 | Safe and environment-friendly composite cable with combustion performance of B1 level and production process thereof |
| WO2022095093A1 (en) * | 2020-11-05 | 2022-05-12 | 江苏亨通电力电缆有限公司 | 66 kv torsion-resistant cable for wind turbine power transmission, and preparation method therefor and use thereof |
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