CN220065233U - Flame-retardant flexible fireproof environment-friendly low-voltage power cable - Google Patents
Flame-retardant flexible fireproof environment-friendly low-voltage power cable Download PDFInfo
- Publication number
- CN220065233U CN220065233U CN202321440250.8U CN202321440250U CN220065233U CN 220065233 U CN220065233 U CN 220065233U CN 202321440250 U CN202321440250 U CN 202321440250U CN 220065233 U CN220065233 U CN 220065233U
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- China
- Prior art keywords
- retardant
- flame
- power cable
- layer
- sheath
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- 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 59
- 239000003063 flame retardant Substances 0.000 title claims abstract description 51
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052802 copper Inorganic materials 0.000 claims abstract description 15
- 239000010949 copper Substances 0.000 claims abstract description 15
- 239000006260 foam Substances 0.000 claims abstract description 15
- 230000007613 environmental effect Effects 0.000 claims description 7
- 230000002265 prevention Effects 0.000 claims description 3
- 230000009970 fire resistant effect Effects 0.000 claims 4
- 230000006835 compression Effects 0.000 abstract description 5
- 238000007906 compression Methods 0.000 abstract description 5
- YXLXNENXOJSQEI-UHFFFAOYSA-L Oxine-copper Chemical compound [Cu+2].C1=CN=C2C([O-])=CC=CC2=C1.C1=CN=C2C([O-])=CC=CC2=C1 YXLXNENXOJSQEI-UHFFFAOYSA-L 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
Abstract
The utility model discloses a flame-retardant flexible fireproof environment-friendly low-voltage power cable, which comprises an outer sheath, wherein a plurality of elastic flame-retardant rings are arranged on the inner ring of the outer sheath, the same armor layer is fixedly arranged on the inner ring of the plurality of elastic flame-retardant rings, a flame-retardant layer is fixedly arranged on the inner ring of the armor layer, an inner sheath is fixedly arranged on the inner ring of the flame-retardant layer, four shielding layers are fixedly arranged on the inner ring of the inner sheath, insulating layers are fixedly arranged on the inner ring of the shielding layers, copper strands are fixedly arranged in the insulating layers, a foam supporting column is arranged between the four insulating layers, and filling layers are arranged in gaps between the shielding layers and the inner sheath and the foam supporting column; the flame-retardant flexible fireproof environment-friendly low-voltage power cable is provided with the flame-retardant component and the compression-resistant buffer zone, has high fireproof and compression-resistant performance, and can prevent relative sliding between the outer sheath and the armor layer after being stressed.
Description
Technical Field
The utility model relates to the field of cables, in particular to a flame-retardant flexible fireproof environment-friendly low-voltage power cable.
Background
The low-voltage power cable is a cable for transmitting power, is usually used for transmitting voltage at 1000V, and is additionally provided with a flame-retardant layer for improving the fireproof performance of the cable, and the rest components are made of environment-friendly materials; when the existing environment-friendly low-voltage power cable is used, the compression resistance and the flame retardance are poor, after the cable is extruded outside, buffering is absent, the twisted copper inside is easy to deform, and meanwhile, the flame retardance is carried out only by adopting a flame retardant layer, so that the effect is poor.
Disclosure of Invention
The utility model mainly aims to provide a flame-retardant flexible fireproof environment-friendly low-voltage power cable which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a fire-retardant flexible fire prevention environmental protection low voltage power cable, includes the oversheath, the inner circle of oversheath is provided with the fire-retardant circle of a plurality of elasticity, the same armor of inner circle fixed mounting of the fire-retardant circle of a plurality of elasticity, the inner circle fixed mounting of armor has fire-retardant layer, the inner circle fixed mounting of fire-retardant layer has the inner sheath, the inner circle fixed mounting of inner sheath has four shielding layers, the inner circle fixed mounting of shielding layer has the insulating layer, the inside fixed mounting of insulating layer has hank copper, be provided with a foam support column between four insulating layers, all be provided with the filling layer in the space between shielding layer and inner sheath and the foam support column.
As a further scheme of the utility model, the inner ring of the outer sheath is provided with convex rings between every two adjacent elastic flame retardant rings, the convex rings and the outer sheath are integrally arranged, and the single-side thickness of the convex rings is equal to half of the single-side thickness of the elastic flame retardant rings.
As a further scheme of the utility model, three circles of cavities are formed in the elastic flame-retardant ring, and flame retardants are filled in the cavities.
As a further scheme of the utility model, the stranded copper is formed by stranding seven copper wires with the same diameter, wherein one copper wire is positioned in the center, and the other six copper wires are uniformly arranged on the outer ring of the copper wire.
As a further aspect of the present utility model, the inner diameter of the inner sheath is equal to the sum of the outer diameters of the two shielding layers and the outer diameter of one foam support column.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, by arranging the elastic flame-retardant ring, the flame retardant, the foam support columns and the convex rings, a gap is formed between the outer sheath and the armor layer by utilizing the elastic flame-retardant ring in cooperation with the convex rings, when the outer sheath is stressed, a buffer layer is formed by utilizing the gap, the outer sheath is supported by utilizing the elastic flame-retardant ring, the compression resistance of the low-voltage power cable is improved, after the low-voltage power cable is extruded, the foam support columns are adopted to form a support at the center, four twisted copper deformation is avoided, the thickness difference between the elastic flame-retardant ring and the convex rings is utilized to form a tooth shape, the tooth shape is utilized to be engaged with each other, the outer sheath is prevented from sliding relatively with the armor layer after being stressed, and when the fire of the low-voltage power cable is spread to the position of the elastic flame-retardant ring, the flame retardant in the cavity is released by burning through the elastic flame-retardant ring in cooperation with the flame-retardant ring, and the flame-retardant effect is enhanced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a flame retardant flexible fire-retardant environmental-friendly low-voltage power cable of the utility model;
FIG. 2 is a front view of the overall structure of a flame retardant flexible fire-retardant environmental protection low voltage power cable of the present utility model;
fig. 3 is a cross-sectional view of the junction of the outer sheath, the elastic flame-retardant ring and the armor layer in the flame-retardant flexible fireproof environment-friendly low-voltage power cable.
In the figure: 1. an outer sheath; 2. an elastic flame retardant ring; 3. an armor layer; 4. a flame retardant layer; 5. an inner sheath; 6. a shielding layer; 7. an insulating layer; 8. copper twisting; 9. a foam support column; 10. a filling layer; 11. a flame retardant; 12. a convex ring.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
As shown in fig. 1-3, a flame-retardant flexible fireproof environment-friendly low-voltage power cable comprises an outer sheath 1, wherein a plurality of elastic flame-retardant rings 2 are arranged on the inner ring of the outer sheath 1, the same armor layer 3 is fixedly arranged on the inner ring of the plurality of elastic flame-retardant rings 2, a flame-retardant layer 4 is fixedly arranged on the inner ring of the armor layer 3, an inner sheath 5 is fixedly arranged on the inner ring of the flame-retardant layer 4, four shielding layers 6 are fixedly arranged on the inner ring of the inner sheath 5, an insulating layer 7 is fixedly arranged on the inner ring of the shielding layer 6, copper hank 8 is fixedly arranged in the insulating layer 7, a foam supporting column 9 is arranged between the four insulating layers 7, a filling layer 10 is arranged in a gap between the shielding layer 6 and the inner sheath 5 and the foam supporting column 9, and the flame-retardant layer 4 is prepared by halogen-free flame-retardant polyolefin, and the flame-retardant performance of the cable is enhanced.
The inner ring of the outer sheath 1 is provided with the convex rings 12 between every two adjacent elastic flame retardant rings 2, the convex rings 12 and the outer sheath 1 are integrally arranged, the single-side thickness of the convex rings 12 is equal to half of the single-side thickness of the elastic flame retardant rings 2, the outer sheath 1 is prepared from PE, and the cable is protected from physical damage and chemical corrosion.
Three circles of cavities are formed in the elastic flame-retardant ring 2, flame retardant 11 is filled in the cavities, and the flame retardant 11 is sodium carbonate, so that the cable material cannot be corroded or damaged while flame retarding.
The stranded copper 8 is formed by stranding seven copper wires with the same diameter, one copper wire is positioned in the center, the other six copper wires are uniformly arranged on the outer ring of the copper wire, and the stranded copper 8 is used as a conductor in a cable and mainly transmits low-voltage electric energy.
The inner diameter of the inner sheath 5 is equal to the sum of the outer diameters of the two shielding layers 6 and the outer diameter of one foam supporting column 9, the inner sheath 5 and the insulating layer 7 are both made of environment-friendly PVC, and the inner sheath 5 is used for isolating an inner gap and avoiding moisture infiltration.
It should be noted that, in the process of installation and use, because the unilateral thickness of the convex ring 12 is smaller than the unilateral thickness of the elastic flame retardant ring 2, a gap exists between the outer sheath 1 and the armor layer 3 and is positioned at the position of the convex ring 12, when the outer sheath 1 is subjected to pressure, a part of the pressure acts on the elastic flame retardant ring 2 through the outer sheath 1, and a part of the pressure acts on the convex ring 12 through the outer sheath 1, so that the surface compression resistance of the low-voltage power cable is enhanced, and meanwhile, the difference of the thicknesses of the elastic flame retardant ring 2 and the convex ring 12 is utilized to form a tooth shape, so that the outer sheath 1 and the armor layer 3 are engaged by the elastic flame retardant ring 2, and the outer sheath 1 and the armor layer 3 are prevented from sliding relatively after being stressed outside;
after the low-voltage power cable is put into use, electric energy or signals are transmitted through the stranded copper 8, the insulating layer 7 is used for forming protection, adjacent stranded copper 8 is prevented from being contacted with each other, mutual interference is avoided when electric energy is transmitted, the filling layer 10 is used for filling gaps, the surface stranded copper 8 is displaced or the insulating layer 7 is compressed and deformed, meanwhile, after external pressure is transmitted into the low-voltage power cable, the foam support column 9 is matched with the central part for providing buffering for supporting the four stranded copper 8, and deformation after mutual contact extrusion is avoided;
the outer sheath 1 forms the outside protection, protect low-voltage power cable from physical damage and chemical corrosion, and strengthen the mechanical strength of low-voltage power cable through armor 3, prevent that low-voltage power cable from being stretched, adopt inner sheath 5 to protect inside hank copper 8 simultaneously, keep apart inside and outside, avoid moisture infiltration, after low-voltage power cable fires, fire-retardant layer 4 forms first layer fire prevention protection, strengthen the fire resistance of low-voltage power cable, and when the fire situation is spread to elastic fire-retardant ring 2 department, elastic fire-retardant ring 2 is burnt out by the ignition, fire retardant 11 in its inside cavity is released, further fire-retardant, mutually support, strengthen fire-retardant effect.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a fire-retardant flexible fire prevention environmental protection low voltage power cable which characterized in that: including oversheath (1), the inner circle of oversheath (1) is provided with a plurality of elasticity fire-retardant circle (2), the inner circle fixed mounting of a plurality of elasticity fire-retardant circle (2) has same armor (3), the inner circle fixed mounting of armor (3) has fire-retardant layer (4), the inner circle fixed mounting of fire-retardant layer (4) has inner sheath (5), the inner circle fixed mounting of inner sheath (5) has four shielding layers (6), the inner circle fixed mounting of shielding layer (6) has insulating layer (7), the inside fixed mounting of insulating layer (7) has hank copper (8), be provided with a foam support column (9) between four insulating layers (7), all be provided with filling layer (10) in the space between shielding layer (6) and inner sheath (5) and foam support column (9).
2. The flame retardant flexible fire resistant environmental protection power cable of claim 1, wherein: the inner ring of the outer sheath (1) is provided with convex rings (12) between every two adjacent elastic flame retardant rings (2), the convex rings (12) and the outer sheath (1) are integrally arranged, and the single-side thickness of the convex rings (12) is equal to half of the single-side thickness of the elastic flame retardant rings (2).
3. The flame retardant flexible fire resistant environmental protection power cable of claim 1, wherein: three circles of cavities are formed in the elastic flame-retardant ring (2), and flame retardant (11) is filled in the cavities.
4. The flame retardant flexible fire resistant environmental protection power cable of claim 1, wherein: the twisted copper (8) is formed by twisting seven copper wires with the same diameter, wherein one copper wire is positioned in the center, and the other six copper wires are uniformly arranged on the outer ring of the copper wire.
5. The flame retardant flexible fire resistant environmental protection power cable of claim 1, wherein: the inner diameter of the inner sheath (5) is equal to the sum of the outer diameters of the two shielding layers (6) and the outer diameter of one foam support column (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321440250.8U CN220065233U (en) | 2023-06-07 | 2023-06-07 | Flame-retardant flexible fireproof environment-friendly low-voltage power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321440250.8U CN220065233U (en) | 2023-06-07 | 2023-06-07 | Flame-retardant flexible fireproof environment-friendly low-voltage power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220065233U true CN220065233U (en) | 2023-11-21 |
Family
ID=88786063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321440250.8U Active CN220065233U (en) | 2023-06-07 | 2023-06-07 | Flame-retardant flexible fireproof environment-friendly low-voltage power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220065233U (en) |
-
2023
- 2023-06-07 CN CN202321440250.8U patent/CN220065233U/en active Active
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