CN220439256U - Halogen-free low-smoke flame-retardant environment-friendly control cable - Google Patents
Halogen-free low-smoke flame-retardant environment-friendly control cable Download PDFInfo
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- CN220439256U CN220439256U CN202321673727.7U CN202321673727U CN220439256U CN 220439256 U CN220439256 U CN 220439256U CN 202321673727 U CN202321673727 U CN 202321673727U CN 220439256 U CN220439256 U CN 220439256U
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- cable
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 61
- 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 51
- 239000000779 smoke Substances 0.000 title claims abstract description 19
- 230000001681 protective effect Effects 0.000 claims abstract description 24
- 239000004020 conductor Substances 0.000 claims abstract description 21
- 239000002131 composite material Substances 0.000 claims abstract description 16
- 239000000945 filler Substances 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 8
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 8
- 239000004800 polyvinyl chloride Substances 0.000 claims description 8
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 8
- 239000010445 mica Substances 0.000 claims description 7
- 229910052618 mica group Inorganic materials 0.000 claims description 7
- 238000009941 weaving Methods 0.000 claims description 7
- 239000004433 Thermoplastic polyurethane Substances 0.000 claims description 5
- 229920001971 elastomer Polymers 0.000 claims description 5
- 239000000806 elastomer Substances 0.000 claims description 5
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 4
- 239000010410 layer Substances 0.000 abstract description 80
- 230000000694 effects Effects 0.000 abstract description 13
- 230000006835 compression Effects 0.000 abstract description 6
- 238000007906 compression Methods 0.000 abstract description 6
- 239000011241 protective layer Substances 0.000 abstract description 5
- 238000005336 cracking Methods 0.000 abstract description 2
- 230000006378 damage Effects 0.000 description 9
- 230000009970 fire resistant effect Effects 0.000 description 8
- 238000010292 electrical insulation Methods 0.000 description 4
- 229910052736 halogen Inorganic materials 0.000 description 4
- 150000002367 halogens Chemical class 0.000 description 4
- 238000005253 cladding Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
The utility model discloses a halogen-free low-smoke flame-retardant environment-friendly control cable, which comprises a cable core, a protective core and a composite outer sheath extruded outside the cable core, wherein the cable core consists of seven insulating wire cores, each insulating wire core consists of a conductor and an insulating layer coated outside the conductor, the conductor adopts a plurality of strands of soft conductors, and the protective core is extruded outside the cable core; the surface of the protective core is provided with a placing groove for wrapping the insulated wire core, a filler is filled between the protective core and the composite outer sheath, and the composite outer sheath comprises a wrapping layer, a shielding layer, a flame-retardant inner sheath layer, a wear-resistant layer A, a steel tape armor layer, a wear-resistant layer B and a flame-retardant outer sheath layer which are coaxially extruded outside the cable core in sequence. Aiming at the problems that the internal structure of the cable is difficult to resist external force, the compression-resistant requirement cannot be met, the protective layer is easy to wear and crack and the like in the prior art, the utility model has the advantages of avoiding the protective layer from cracking, resisting external compression and twisting, along with good flame retardant effect, strong protection and the like.
Description
Technical Field
The utility model relates to the technical field of control cables, in particular to a halogen-free low-smoke flame-retardant environment-friendly control cable.
Background
The control cable is applicable to industrial and mining enterprises, energy traffic departments, control lines with the alternating current rated voltage below 450/750V and the like, is used for transmitting control signals, and mainly solves the problems of weak transmission signals, signal interference, signal distortion and the like.
The existing control cable is unreasonable in structural design, is difficult to resist external force, cannot meet the compression-resistant requirement, is not separated among wires in the control cable, and is easy to generate electric arcs when a plurality of wires are clung to form a whole, so that a wire protection layer is broken, and electric leakage and short circuit are caused; and most of control cables are only provided with a protective layer outside, so that the control cables are easy to wear, and further the mineral filling layer is easy to damage, so that the flame-retardant and fireproof effects are poor.
Aiming at the technical problems, the utility model discloses a halogen-free low-smoke flame-retardant environment-friendly control cable, which has the advantages of avoiding protective layer cracking, resisting external pressure and twisting, along with good flame-retardant effect, strong protection and the like.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides a halogen-free low-smoke flame-retardant environment-friendly control cable, so as to solve the problems that the internal structure of the cable is difficult to resist external force, the compression-resistant requirement cannot be met, and a protective layer is easy to wear and crack in the prior art. The utility model has the advantages of pressure-bearing protection, external pressure twisting resistance, good flame-retardant effect, strong protectiveness and the like.
The utility model is realized by the following technical scheme: the utility model discloses a halogen-free low-smoke flame-retardant environment-friendly control cable, which comprises a cable core, a protective core and a composite outer sheath extruded outside the cable core, wherein the cable core consists of seven insulating wire cores, each insulating wire core consists of a conductor and an insulating layer coated outside the conductor, the conductor adopts a plurality of strands of soft conductors, and the protective core is extruded outside the cable core; the surface of the protective core is provided with a placing groove for wrapping the insulated wire core, a filler is filled between the protective core and the composite outer sheath, and the composite outer sheath comprises a wrapping layer, a shielding layer, a flame-retardant inner sheath layer, a wear-resistant layer A, a steel tape armor layer, a wear-resistant layer B and a flame-retardant outer sheath layer which are coaxially extruded outside the cable core in sequence.
Furthermore, in order to protect the wire core and reduce the deformation or damage caused by external pressure while having the flame-retardant effect, the protection core is made of flame-retardant thermoplastic polyurethane elastomer.
Further, in order to protect the insulated wire core and resist compression spacing, standing groove cell wall surface is laminated with the insulated wire core surface.
Furthermore, in order to have better flame-retardant and fire-resistant characteristics, the filler adopts flexible fireproof mud or glass fiber yarn, and the wrapping layer adopts a fire-resistant mica tape.
Furthermore, in order to have very excellent heat resistance and good insulating property, no halogen-containing gas is released under the condition of burning, the smoke concentration is low, the harm to the environment is relatively high, and the insulating layer, the flame-retardant inner sheath layer and the flame-retardant outer sheath layer are all made of crosslinked polyethylene materials.
Furthermore, in order to be relatively cheap and easy to obtain, have good impact deformation resistance and good electrical insulation performance, the thickness of the wear-resistant layer A and the wear-resistant layer B is at least 4m, and the wear-resistant layers are made of polyvinyl chloride materials.
Furthermore, in order to have better shielding effect and excellent weather resistance, the shielding layer is formed by weaving metal wires, the metal wires are soft round copper wires or tinned copper wires, and the weaving density of the shielding layer is 80-92%.
The utility model has the following advantages:
(1) The surface of the protective core is provided with the placing groove for wrapping the insulated wire core, the filler is filled between the protective core and the composite outer sheath, the protective core is made of flame-retardant thermoplastic polyurethane elastomer, the flame-retardant protective core has a flame-retardant effect, and meanwhile, the wire core can be protected, and the problems of deformation or damage caused by external pressure are reduced;
(2) The insulating layer, the flame-retardant inner sheath layer and the flame-retardant outer sheath layer are all made of crosslinked polyethylene materials, the crosslinked polyethylene has very excellent heat resistance, can not be decomposed and carbonized below 300 ℃, can reach 90 ℃ in long-term working temperature, has good insulating property and further increases the insulating resistance, improves the hardness, the rigidity, the wear resistance and the impact resistance, does not release halogen-containing gas under the condition of combustion, has low smoke concentration, less harm to the environment and good environmental protection effect;
(3) The wrapping layer provided by the utility model adopts a fire-resistant mica tape, has good fire-retardant and fire-resistant characteristics, the thickness of the wear-resistant layer A and the wear-resistant layer B is at least 4m, the wear-resistant layer adopts polyvinyl chloride materials, the polyvinyl chloride is relatively cheap and easy to obtain, the wear-resistant mica tape has good impact deformation resistance, good electrical insulation performance and good chemical stability, the wear-resistant layer A and the wear-resistant layer B can be woven by metal wires, the metal wires are soft round copper wires or tinned copper wires, the weaving density of the shielding layer is 80-92%, and the wear-resistant mica tape has good weather resistance while good shielding effect.
Drawings
FIG. 1 is a schematic cross-sectional view of the present utility model;
FIG. 2 is a schematic view of the outer sheath of the present utility model;
fig. 3 is a schematic view of a combination structure of a protection core and a cable core according to the present utility model.
In the figure: 1. a cable core; 2. protecting the core; 3. a composite outer sheath; 4. an insulated wire core; 5. a conductor; 6. an insulating layer; 7. a filler; 8. wrapping the layer; 9. a flame retardant inner jacket layer; 10. a steel tape armor layer; 11. a flame retardant outer jacket layer; 12. a placement groove; 13. a wear-resistant layer A; 14. a wear-resistant layer B; 15. and a shielding layer.
Detailed Description
The following detailed description of embodiments of the present utility model, which are given by taking the technical solution of the present utility model as a premise, gives detailed embodiments and specific operation procedures, but the scope of the present utility model is not limited to the following embodiments, and in the description of the present utility model, words indicating orientation or positional relationship like "front", "rear", "left", "right", etc. are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
The utility model provides a technical scheme that: the utility model provides a halogen-free low smoke fire-retardant environmental protection control cable, as shown in fig. 1 to 3, including cable core 1, protect core 2 and crowded cladding outside cable core 1 compound oversheath 3, cable core 1 comprises seven insulation core 4, every insulation core 4 comprises conductor 5 and cladding outside conductor 5 insulating layer 6, and conductor 5 adopts stranded flexible conductor, and cable core 1's skin crowded cladding has protect core 2; the surface of the protective core 2 is provided with a placing groove 12 for wrapping the insulated wire core 4, a filler 7 is filled between the protective core 2 and the composite outer sheath 3, and the composite outer sheath 3 comprises a wrapping layer 8, a shielding layer 15, a flame-retardant inner sheath layer 9, a wear-resistant layer A13, a steel tape armor layer 10, a wear-resistant layer B14 and a flame-retardant outer sheath layer 11 which are coaxially extruded outside the cable core 1 in sequence.
As shown in fig. 1 to 3, the protection core 2 is made of flame-retardant thermoplastic polyurethane elastomer, has flame-retardant effect, and can protect the wire core and reduce the problems of deformation or damage when encountering external pressure.
As shown in fig. 1 to 3, the surface of the groove wall of the placing groove 12 is attached to the surface of the insulated wire core 4, so that the insulated wire core 4 can be protected and compression-resistant and limited.
As shown in fig. 1 to 3, the filler 7 is made of flexible fire-resistant mud or glass fiber, and the wrapping layer 8 is made of fire-resistant mica tape, so that the fire-resistant and fire-resistant properties are good.
As shown in fig. 1 to 3, the insulating layer 6, the flame-retardant inner sheath layer 9 and the flame-retardant outer sheath layer 11 are all made of cross-linked polyethylene materials, the cross-linked polyethylene has very excellent heat resistance, can not be decomposed and carbonized below 300 ℃, can reach 90 ℃ in long-term working temperature, has good insulating property and long thermal life, further increases the insulating resistance, improves the hardness, the rigidity, the wear resistance and the impact resistance, does not release halogen-containing gas under the condition of burning, has low smoke concentration and has less harm to the environment.
As shown in fig. 1 to 3, the thickness of the wear-resistant layer a13 and the wear-resistant layer B14 is at least 4m, the wear-resistant layer 13 is made of polyvinyl chloride material, and the polyvinyl chloride is relatively cheap and easy to obtain, has good impact deformation resistance, good electrical insulation performance and good chemical stability.
As shown in fig. 1 to 3, the shielding layer 15 is formed by weaving metal wires, and the metal wires are soft round copper wires or tinned copper wires, so that the weaving density of the shielding layer 15 is 80-92%, and the shielding layer has good shielding effect and good weather resistance.
The principle of the utility model is as follows: the cable comprises a cable core 1, a protective core 2 and a composite outer sheath 3 extruded outside the cable core 1, wherein the cable core 1 consists of seven insulating wire cores 4, each insulating wire core 4 consists of a conductor 5 and an insulating layer 6 coated outside the conductor 5, the conductor 5 adopts multi-strand soft conductors, and the protective core 2 is extruded outside the cable core 1; the surface of the protective core 2 is provided with a placing groove 12 for wrapping the insulated wire core 4, a filler 7 is filled between the protective core 2 and the composite outer sheath 3, the protective core 2 is made of flame-retardant thermoplastic polyurethane elastomer, the wire core can be protected while the flame-retardant effect is achieved, and the problems of deformation or damage caused by external pressure are reduced;
the composite outer sheath 3 comprises a wrapping layer 8, a shielding layer 15, a flame-retardant inner sheath layer 9, a wear-resistant layer A13, a steel tape armor layer 10, a wear-resistant layer B14 and a flame-retardant outer sheath layer 11 which are coaxially extruded outside the cable core 1 in sequence, wherein the insulating layer 6, the flame-retardant inner sheath layer 9 and the flame-retardant outer sheath layer 11 are all made of cross-linked polyethylene materials, the cross-linked polyethylene has very excellent heat resistance, can not be decomposed or carbonized below 300 ℃, has a long-term working temperature of 90 ℃ and long heat service life, has good insulating property, further increases the insulating resistance, improves the hardness, the rigidity, the wear resistance and the impact resistance, does not release halogen-containing gas under the condition of combustion, has low smoke concentration and has small harm to the environment;
the filler 7 adopts a fire-retardant refractory filler such as flexible fire-retardant mud or glass fiber yarn, the wrapping layer 8 adopts a fire-retardant mica tape, the fire-retardant refractory characteristic is better, the thickness of the wear-resisting layer A13 and the wear-resisting layer B14 is at least 4m, the wear-resisting layer 13 adopts polyvinyl chloride material, the polyvinyl chloride is relatively cheap and easy to obtain, the fire-retardant refractory filler has good impact deformation resistance, has good electrical insulation performance and good chemical stability, the shielding layer 15 is woven by metal wires, the metal wires adopt soft round copper wires or tinned copper wires, the weaving density of the shielding layer 15 is 80-92%, and the fire-retardant refractory filler has good shielding effect and good weather resistance.
Claims (7)
1. The halogen-free low-smoke flame-retardant environment-friendly control cable comprises a cable core, a protective core and a composite outer sheath extruded outside the cable core, and is characterized in that the cable core consists of seven insulating wire cores, each insulating wire core consists of a conductor and an insulating layer coated outside the conductor, the conductor adopts a plurality of strands of soft conductors, and the protective core is extruded outside the cable core; the cable core is characterized in that a placing groove for wrapping the insulating cable core is formed in the surface of the protective core, a filler is filled between the protective core and the composite outer sheath, and the composite outer sheath comprises a wrapping layer, a shielding layer, a flame-retardant inner sheath layer, a wear-resistant layer A, a steel tape armor layer, a wear-resistant layer B and a flame-retardant outer sheath layer which are coaxially extruded outside the cable core in sequence.
2. The halogen-free low-smoke flame-retardant environment-friendly control cable as claimed in claim 1, wherein the protective core is made of flame-retardant thermoplastic polyurethane elastomer.
3. The halogen-free low-smoke flame-retardant environment-friendly control cable as claimed in claim 1, wherein the surface of the groove wall of the placing groove is attached to the surface of the insulated wire core.
4. The halogen-free low-smoke flame-retardant environment-friendly control cable as claimed in claim 1, wherein the filler is flexible fire-retardant mud or glass fiber, and the wrapping layer is a fire-retardant mica tape.
5. The halogen-free low-smoke flame-retardant environment-friendly control cable according to claim 1, wherein the insulating layer, the flame-retardant inner sheath layer and the flame-retardant outer sheath layer are all made of crosslinked polyethylene materials.
6. The halogen-free low-smoke flame-retardant environment-friendly control cable as claimed in claim 1, wherein the thickness of the wear-resistant layer A and the wear-resistant layer B is at least 4m, and the wear-resistant layers are made of polyvinyl chloride materials.
7. The halogen-free low-smoke flame-retardant environment-friendly control cable as defined in claim 1, wherein the shielding layer is woven by metal wires, the metal wires are soft round copper wires or tinned copper wires, and the weaving density of the shielding layer is 80-92%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321673727.7U CN220439256U (en) | 2023-06-28 | 2023-06-28 | Halogen-free low-smoke flame-retardant environment-friendly control cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321673727.7U CN220439256U (en) | 2023-06-28 | 2023-06-28 | Halogen-free low-smoke flame-retardant environment-friendly control cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220439256U true CN220439256U (en) | 2024-02-02 |
Family
ID=89696528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321673727.7U Active CN220439256U (en) | 2023-06-28 | 2023-06-28 | Halogen-free low-smoke flame-retardant environment-friendly control cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220439256U (en) |
-
2023
- 2023-06-28 CN CN202321673727.7U patent/CN220439256U/en active Active
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