CN220171833U - Medium-voltage fire-resistant power cable for high-rise building - Google Patents
Medium-voltage fire-resistant power cable for high-rise building Download PDFInfo
- Publication number
- CN220171833U CN220171833U CN202321424998.9U CN202321424998U CN220171833U CN 220171833 U CN220171833 U CN 220171833U CN 202321424998 U CN202321424998 U CN 202321424998U CN 220171833 U CN220171833 U CN 220171833U
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- China
- Prior art keywords
- fire
- layer
- fixedly connected
- resistant
- flame
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- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 55
- 239000003063 flame retardant Substances 0.000 claims abstract description 59
- 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 claims abstract description 52
- 239000000779 smoke Substances 0.000 claims abstract description 31
- 229910052751 metal Inorganic materials 0.000 claims abstract description 24
- 239000002184 metal Substances 0.000 claims abstract description 24
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000001301 oxygen Substances 0.000 claims abstract description 17
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 17
- 239000000945 filler Substances 0.000 claims description 9
- 239000004020 conductor Substances 0.000 claims description 8
- 230000004888 barrier function Effects 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 11
- 238000001816 cooling Methods 0.000 abstract description 6
- 239000011248 coating agent Substances 0.000 description 12
- 238000000576 coating method Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 9
- 229910052736 halogen Inorganic materials 0.000 description 6
- 238000002955 isolation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 150000002367 halogens Chemical class 0.000 description 5
- 230000002265 prevention Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 3
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 3
- 239000000347 magnesium hydroxide Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 229920003020 cross-linked polyethylene Polymers 0.000 description 2
- 239000004703 cross-linked polyethylene Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000009421 internal insulation Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Insulated Conductors (AREA)
Abstract
The utility model relates to the field of basic elements of power cables and discloses a medium-voltage fire-resistant power cable for a high-rise building, which comprises an outer fire-resistant layer, wherein an inner fire-resistant layer is fixedly connected to the outer wall of the outer fire-resistant layer, a low-smoke halogen-free oxygen-resistant layer is fixedly connected to the outer wall of the inner fire-resistant layer, a fire-resistant layer is fixedly connected to the outer wall of the low-smoke halogen-free oxygen-resistant layer, an outer fire-resistant layer is fixedly connected to the outer wall of the fire-resistant layer, and a metal fire-resistant layer is fixedly connected to the outer wall of the outer fire-resistant layer. According to the utility model, the heat resistance and flame retardance of the cable are enhanced by matching the structures of the outer flame-proof layer, the inner flame-proof layer, the low-smoke halogen-free oxygen-proof layer, the fireproof flame-proof layer, the outer flame-retardant layer, the metal fireproof layer, the flame-retardant pipe, the low-smoke halogen-free outer sheath and the like, so that the cable can smoothly pass through a pressure-resistant test of min after combustion cooling, and the safety of an electric circuit of a high-rise building is improved.
Description
Technical Field
The utility model relates to the field of basic elements of power cables, in particular to a medium-voltage fire-resistant power cable for a high-rise building.
Background
In a global power system fire accident, there is an increasing tendency of the proportion of interruption of power supply of the power system due to ignition of the power cable. Because of the high-rise building, the electric equipment is more concentrated and the requirement on the safety of the electric circuit is higher due to the fact that the personnel are dense. As a power supply and distribution main force-crosslinked polyethylene insulating low-smoke zero-halogen fire-resistant medium-voltage power cable, the cable presents huge market demand. The cable can be widely applied to medium voltage distribution systems in important places such as high-rise buildings, petrochemical industry, power plants, nuclear power stations, subways, tunnels and the like.
The existing medium-voltage fire-resistant cable structure is difficult to pass through voltage test after combustion. The structure of the extrusion fire-proof layer taking magnesium hydroxide fire-proof mud as a main material is adopted, and the fire-proof layer smoothly passes through a withstand voltage test of 15 minutes after combustion cooling. The safety of the electric circuit of the high-rise building is improved.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides a medium-voltage fire-resistant power cable for a high-rise building.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a high-rise building is with middle-voltage fire-resistant power cable, includes outer fire barrier, outer fire barrier outer wall fixedly connected with internal combustion layer, internal combustion layer outer wall fixedly connected with low smoke and zero halogen separates oxygen layer, low smoke and zero halogen separates oxygen layer outer wall fixedly connected with fire prevention fire-resistant layer, fire prevention fire-resistant layer outer wall fixedly connected with outer fire-retardant layer, outer fire-retardant layer outer wall fixedly connected with metal fire-resistant layer.
As a further description of the above technical solution:
the inner wall of the outer fire-insulating layer is provided with a plurality of inner fire-insulating layers, and the inner part of the outer fire-insulating layer is fixedly connected with flame-retardant filler corresponding to the outer part of the inner fire-insulating layer.
As a further description of the above technical solution:
the inner wall of the inner fire-resistant layer is fixedly connected with a high-conductivity metal shielding layer, and the inner wall of the high-conductivity metal shielding layer is fixedly connected with a semiconductive crosslinked outer screen.
As a further description of the above technical solution:
and the inner walls of the semiconductive cross-linked outer screens are fixedly connected with an inner insulating layer.
As a further description of the above technical solution:
the inner wall of the inner insulating layer is fixedly connected with a semiconductive crosslinked inner screen, and the inner wall of the semiconductive crosslinked inner screen is fixedly connected with a conductor.
As a further description of the above technical solution:
the outer walls of the inner fire-resistant layers are fixedly connected inside the flame-retardant filler.
As a further description of the above technical solution:
the outer wall of the metal fireproof layer is fixedly connected with a flame-retardant pipe, and the outer wall of the flame-retardant pipe is fixedly connected with a low-smoke halogen-free outer sheath.
The utility model has the following beneficial effects:
1. according to the utility model, the heat resistance and flame retardance of the cable are enhanced by matching the structures of the outer flame-proof layer, the inner flame-proof layer, the low-smoke halogen-free oxygen-proof layer, the fireproof flame-proof layer, the outer flame-retardant layer, the metal fireproof layer, the flame-retardant pipe, the low-smoke halogen-free outer sheath and the like, so that the cable can smoothly pass through a pressure-resistant test of min after combustion cooling, and the safety of an electric circuit of a high-rise building is improved.
2. According to the utility model, the structures of the conductor, the semi-conductive cross-linked inner screen, the inner insulating layer, the semi-conductive cross-linked outer screen, the high-conductivity metal shielding layer, the inner fire-resistant layer, the flame-retardant filler and the like are matched, so that a layer of fireproof flame-retardant component is additionally arranged in the cable, and the fireproof flame-retardant component in the cable can also support the cable to have a protection function when the cable is severely worn in the using time.
Drawings
Fig. 1 is a perspective view of a medium voltage fire-resistant power cable for high-rise buildings according to the present utility model;
fig. 2 is a front view of a medium voltage fire-resistant power cable for high-rise buildings according to the present utility model;
fig. 3 is an exploded view of a medium voltage fire resistant power cable for high rise building according to the present utility model.
Legend description:
1. a conductor; 2. a semiconductive crosslinked inner screen; 3. an inner insulating layer; 4. a semiconductive crosslinked outer screen; 5. a high conductivity metal shield layer; 6. an inner fire barrier; 7. a flame retardant filler; 8. an outer fire barrier; 9. an inner flame retardant layer; 10. a low smoke zero halogen oxygen barrier layer; 11. a fire-resistant layer; 12. an outer flame retardant layer; 13. a metal fire-blocking layer; 14. a flame retardant tube; 15. low smoke halogen-free outer sheath.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1-3, one embodiment provided by the present utility model is: the medium-voltage fire-resistant power cable for the high-rise building comprises an outer fire-resistant layer 8, wherein the outer fire-resistant layer 8 is made of ceramic silicon rubber fire-resistant material, an inner fire-resistant layer 9 is fixedly connected to the outer wall of the outer fire-resistant layer 8, the inner fire-resistant layer 9 is made of a low-smoke halogen-free high-fire-resistant tape wrapping fire-resistant material, a low-smoke halogen-free oxygen-resistant layer 10 is fixedly connected to the outer wall of the inner fire-resistant layer 9, the low-smoke halogen-free oxygen-resistant layer 10 is made of an extruded low-smoke halogen-free oxygen-resistant material, a fire-resistant layer 11 is fixedly connected to the outer wall of the low-smoke halogen-free oxygen-resistant layer 10, the fire-resistant layer 11 is made of extruded magnesium hydroxide fire-resistant mud, an outer fire-resistant layer 12 is fixedly connected to the outer wall of the fire-resistant layer 11, the outer fire-resistant layer 12 is made of a low-smoke halogen-free high-fire-resistant tape wrapping fire-resistant material, the outer wall fixedly connected with metal flame retardant coating 13 of outer flame retardant coating 12, metal flame retardant coating 13 embeds there is tensile steel wire, outer flame retardant coating 8 inner wall is provided with a plurality of interior flame retardant coating 6, interior flame retardant coating 6 is ceramic silicon rubber flame retardant material, the inside corresponding interior flame retardant coating 6 outside fixedly connected with of outer flame retardant coating 8 is fire-retardant filler 7, cooperate between structures such as through outer flame retardant coating 8, internal combustion layer 9, low smoke and zero halogen oxygen barrier 10, fire-proof flame retardant coating 11, outer flame retardant coating 12, metal flame retardant coating 13, fire-retardant pipe 14 and low smoke and zero halogen oversheath 15, the effect of strengthening the heat resistance and fire-retardant of this cable has been realized, make it can pass through the withstand voltage test of 15min after the combustion cooling smoothly, improve the security of high-rise building's electric circuit.
The inner wall of the inner fire insulating layer 6 is fixedly connected with the high-conductivity metal shielding layer 5, the inner wall of the high-conductivity metal shielding layer 5 is fixedly connected with the semi-conductive crosslinked outer screen 4, the inner wall of the semi-conductive crosslinked outer screen 4 is fixedly connected with the inner insulating layer 3, the inner insulating layer is made of XLPE insulating materials, the inner wall of the inner insulating layer 3 is fixedly connected with the semi-conductive crosslinked inner screen 2, the inner wall of the semi-conductive crosslinked inner screen 2 is fixedly connected with the conductor 1, the conductor 1 adopts a stranded copper conductor, the outer wall of the inner fire insulating layer 6 is fixedly connected inside the flame retardant filler 7, the outer wall of the metal flame retardant layer 13 is fixedly connected with the flame retardant pipe 14, the flame retardant pipe 14 is a low-smoke halogen-free high-flame retardant tape wrapping flame retardant material, the outer sheath 15 is fixedly connected with the low-smoke halogen-free outer sheath 15, the inner insulating layer 2, the inner insulating layer 3, the semi-conductive crosslinked inner screen 4, the high-conductivity metal shielding layer 5, the inner fire insulating layer 7 and other structures are matched, so that the cable is made of the cable has the flame retardant component and the flame retardant component has the flame retardant function when the cable is severely worn when the cable is additionally arranged, and the cable has the flame retardant component.
Working principle: firstly, when the cable needs a voltage test after burning, the low-smoke halogen-free outer sheath 15 and the flame retardant pipe 14 are used for first-season flame retardance, the metal flame retardant layer 13 also has the effects of fire prevention and tensile resistance, the integral pulling resistance of the cable is improved, and further, the materials of the fire retardant layer 11 and the outer flame retardant layer 12 are respectively magnesium hydroxide refractory materials and high-oxygen-index low-smoke halogen-free flame retardant polyolefin oxygen-isolation materials, bound water is released when the cable is heated and decomposed, a large amount of latent heat is absorbed, so that the surface temperature of the filled synthetic material in the flame is reduced, the effects of inhibiting polymer decomposition and cooling generated combustible gas are achieved, and the effects of fire prevention, heat insulation and high temperature resistance are far higher than those of the metal sheath; the strength is high, and the mechanical property is high; the method has good process performance; the copper sheath of the flexible fireproof cable can be replaced, and the welding problem of argon arc welding is solved; the process is simple, the production cost and the efficiency are far higher than those of a copper sheath and an aluminum sheath, the pressure test of 15min after combustion cooling can be successfully carried out, the safety of an electric circuit of a high-rise building is improved, the low-smoke halogen-free oxygen isolation layer 10 inside the fireproof flame-retardant layer 11 has a good oxygen isolation effect, the low-smoke halogen-free oxygen isolation layer 10 does not have combustion conditions, the internal combustion layer 9 and the external flame-retardant layer 8 inside the low-smoke halogen-free oxygen isolation layer 10 can absorb part of latent heat, the internal structure of the low-smoke halogen-free oxygen isolation layer can not be subjected to excessive temperature, and the flame-retardant filler 7 and the internal flame-retardant layer 6 inside the external flame-retardant layer 8 are the final-stage fireproof assembly, so that the fireproof protective performance on the high-conductivity metal shielding layer 5, the semiconductive crosslinked external screen 4, the internal insulation layer 3, the semiconductive crosslinked internal screen 2 and the conductor 1 can be increased.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (7)
1. The utility model provides a high-rise building is with fire-resistant power cable of middling pressure, includes outer fire barrier (8), its characterized in that: the fire-resistant and flame-retardant fire-resistant composite material is characterized in that the inner flame-retardant layer (9) is fixedly connected to the outer wall of the outer flame-resistant layer (8), the low-smoke halogen-free oxygen-resistant layer (10) is fixedly connected to the outer wall of the inner flame-retardant layer (9), the fire-resistant layer (11) is fixedly connected to the outer wall of the low-smoke halogen-free oxygen-resistant layer (10), the outer flame-resistant layer (12) is fixedly connected to the outer wall of the fire-resistant layer (11), and the metal flame-resistant layer (13) is fixedly connected to the outer wall of the outer flame-resistant layer (12).
2. A medium voltage fire resistant power cable for high rise buildings as claimed in claim 1 wherein: the inner wall of the outer fire-insulating layer (8) is provided with a plurality of inner fire-insulating layers (6), and the inner part of the outer fire-insulating layer (8) is fixedly connected with a flame-retardant filler (7) corresponding to the outer part of the inner fire-insulating layer (6).
3. A medium voltage fire resistant power cable for high rise buildings as claimed in claim 2 wherein: the inner wall of the inner fire-proof layer (6) is fixedly connected with a high-conductivity metal shielding layer (5), and the inner wall of the high-conductivity metal shielding layer (5) is fixedly connected with a semiconductive cross-linked outer screen (4).
4. A medium voltage fire resistant power cable for high rise buildings according to claim 3 wherein: the inner walls of the semiconductive cross-linked outer screen (4) are fixedly connected with an inner insulating layer (3).
5. A medium voltage fire resistant power cable for high rise buildings as defined in claim 4 wherein: the inner wall of the inner insulating layer (3) is fixedly connected with a semiconductive cross-linked inner screen (2), and the inner wall of the semiconductive cross-linked inner screen (2) is fixedly connected with a conductor (1).
6. A medium voltage fire resistant power cable for high rise buildings as claimed in claim 2 wherein: the outer walls of the inner fire-resistant layers (6) are fixedly connected inside the flame-retardant filler (7).
7. A medium voltage fire resistant power cable for high rise buildings as claimed in claim 1 wherein: the outer wall of the metal fireproof layer (13) is fixedly connected with a flame-retardant pipe (14), and the outer wall of the flame-retardant pipe (14) is fixedly connected with a low-smoke halogen-free outer sheath (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321424998.9U CN220171833U (en) | 2023-06-06 | 2023-06-06 | Medium-voltage fire-resistant power cable for high-rise building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321424998.9U CN220171833U (en) | 2023-06-06 | 2023-06-06 | Medium-voltage fire-resistant power cable for high-rise building |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220171833U true CN220171833U (en) | 2023-12-12 |
Family
ID=89059153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321424998.9U Active CN220171833U (en) | 2023-06-06 | 2023-06-06 | Medium-voltage fire-resistant power cable for high-rise building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220171833U (en) |
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2023
- 2023-06-06 CN CN202321424998.9U patent/CN220171833U/en active Active
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