CN219936721U - Flame-retardant power cable - Google Patents
Flame-retardant power cable Download PDFInfo
- Publication number
- CN219936721U CN219936721U CN202320850125.8U CN202320850125U CN219936721U CN 219936721 U CN219936721 U CN 219936721U CN 202320850125 U CN202320850125 U CN 202320850125U CN 219936721 U CN219936721 U CN 219936721U
- Authority
- CN
- China
- Prior art keywords
- power cable
- flame
- wrapping
- flame retardant
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003063 flame retardant Substances 0.000 title claims abstract description 40
- 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 37
- 239000000919 ceramic Substances 0.000 claims abstract description 31
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 23
- 239000000779 smoke Substances 0.000 claims abstract description 17
- 239000004020 conductor Substances 0.000 claims abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000004945 silicone rubber Substances 0.000 claims description 14
- 229920000098 polyolefin Polymers 0.000 claims description 11
- 239000000835 fiber Substances 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 8
- 239000010445 mica Substances 0.000 claims description 8
- 229910052618 mica group Inorganic materials 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 7
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 claims 2
- 239000010410 layer Substances 0.000 abstract description 42
- 239000011241 protective layer Substances 0.000 abstract description 12
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 239000003208 petroleum Substances 0.000 abstract 1
- 229910052736 halogen Inorganic materials 0.000 description 8
- 150000002367 halogens Chemical class 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model relates to a flame-retardant power cable, which comprises a ceramic silicon rubber inner protective layer, wherein a copper core soft conductor is arranged in the ceramic silicon rubber inner protective layer, an insulating layer is arranged on the outer surface of the copper core soft conductor, a wrapping layer I is arranged on the outer surface of the insulating layer, a wrapping layer II is arranged on the outer surface of the ceramic silicon rubber inner protective layer, a wrapping layer III is arranged on the outer surface of the wrapping layer, and an outer sheath is arranged on the outer surface of the wrapping layer III. The flame-retardant power cable disclosed by the utility model has the advantages of excellent flame retardant property, low smoke intensity in combustion and no corrosive gas escape, and can be widely applied to important military and civil facilities such as nuclear power stations, subway stations, hospitals, important military facilities, petroleum platforms and the like, and places with more concentrated personnel and low air density.
Description
Technical Field
The utility model relates to the technical field of power cables, in particular to a flame-retardant power cable.
Background
The power cable is a cable product used for transmitting and distributing high-power electric energy in a main line of a power system, and is commonly used for urban underground power grids, power station outgoing lines, power supply in industrial and mining enterprises and power transmission lines under sea water passing through the river.
When a fire disaster occurs in a polyvinyl chloride insulated wire used in daily life, toxic gas is generated, and the polyvinyl chloride insulated wire has a certain harm to human bodies.
Disclosure of Invention
The utility model provides a flame-retardant power cable, which solves the technical problem in the prior art.
The scheme for solving the technical problems is as follows: the novel ceramic silicon rubber inner protective layer comprises a copper core soft conductor arranged inside the ceramic silicon rubber inner protective layer, an insulating layer is arranged on the outer surface of the copper core soft conductor, a wrapping layer I is arranged on the outer surface of the insulating layer, a wrapping layer II is arranged on the outer surface of the ceramic silicon rubber inner protective layer, a wrapping layer III is arranged on the outer surface of the wrapping layer, and an outer sheath is arranged on the outer surface of the wrapping layer III.
On the basis of the technical scheme, the utility model can be improved as follows.
Further, the insulating layer is a low-smoke halogen-free flame-retardant polyolefin insulating layer.
Further, the wrapping layer I is a ceramic silicone rubber composite tape wrapping layer.
Further, the wrapping layer II is a ceramic fiber mica tape wrapping layer.
Further, the wrapping layer III is a flame-retardant belt wrapping layer.
Further, the outer sheath is a low-smoke halogen-free flame-retardant polyolefin sheath.
The beneficial effects of the utility model are as follows: the utility model provides a flame-retardant power cable, which has the following advantages:
through the copper core flexible conductor, the low smoke zero halogen flame retardant polyolefin insulating layer, the ceramic silicone rubber composite tape wrapping, the ceramic silicone rubber inner protective layer, the ceramic fiber mica tape wrapping, the flame retardant tape wrapping and the low smoke zero halogen flame retardant polyolefin sheath which are arranged, under the cooperation effect of the electric property and the physicochemical property of the common cable, the cable is self-extinguishing, namely not easy to burn, or when the cable catches fire due to self or an external fire source, the cable does not burn continuously after the fire is extinguished, or the burning time is very short, or the flame-retarding length is very short. The fire-proof material is widely used in places with high requirements on fire prevention such as large buildings, tunnels, petrochemical industry, power stations, mines and the like. When a fire disaster occurs, the fire disaster can be prevented from spreading on the cable, the expansion of the fire disaster is avoided, and the loss is reduced.
The foregoing description is only an overview of the present utility model, and is intended to provide a better understanding of the present utility model, as it is embodied in the following description, with reference to the preferred embodiments of the present utility model and the accompanying drawings. Specific embodiments of the present utility model are given in detail by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:
fig. 1 is a schematic structural diagram of a flame retardant power cable according to an embodiment of the present utility model.
In the drawings, the list of components represented by the various numbers is as follows:
1. a copper core flexible conductor; 2. a low smoke zero halogen flame retardant polyolefin insulation layer; 3. wrapping a ceramic silicon rubber composite belt; 4. a ceramic silicone rubber inner sheath; 5. wrapping the ceramic fiber mica tape; 6. wrapping the flame retardant belt; 7. a low smoke zero halogen flame retardant polyolefin sheath.
Detailed Description
The principles and features of the present utility model are described below with reference to fig. 1, but the examples are provided for illustration only and are not intended to limit the scope of the utility model. The utility model is more particularly described by way of example in the following paragraphs with reference to the drawings. Advantages and features of the utility model will become more apparent from the following description and from the claims. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the utility model.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, the utility model provides a flame-retardant power cable, which comprises a ceramic silicone rubber inner protective layer 4, wherein a copper core soft conductor 1 is arranged inside the ceramic silicone rubber inner protective layer 4, an insulating layer is arranged on the outer surface of the copper core soft conductor 1, a wrapping layer I is arranged on the outer surface of the insulating layer, a wrapping layer II is arranged on the outer surface of the ceramic silicone rubber inner protective layer 4, a wrapping layer III is arranged on the outer surface of the wrapping layer, and an outer sheath is arranged on the outer surface of the wrapping layer III.
Preferably, the insulating layer is a low smoke zero halogen flame retardant polyolefin insulating layer 2.
Preferably, the first wrapping layer is a ceramic silicone rubber composite tape wrapping layer 3.
Preferably, the wrapping layer II is a ceramic fiber mica tape wrapping layer 5.
Preferably, the wrapping layer III is a flame-retardant tape wrapping layer 6.
Preferably, the outer sheath is a low smoke zero halogen flame retardant polyolefin sheath 7.
The specific working principle and the using method of the utility model are as follows:
the utility model provides a flame-retardant power cable which adopts a copper core soft conductor 1 structure, has more excellent conductive performance and better product flexibility compared with a hard conductor structure, and can be suitable for more places. The material has better flexibility, good physical and mechanical properties, insulating properties and excellent flame retardant properties, and has low smoke density, no release of halogen acid and other corrosive gases during combustion, and extremely low insulation resistance change rate after soaking in water. The ceramic silicon rubber composite belt is formed by overlapping and wrapping the insulating layer, and the ceramic silicon rubber composite belt can form a ceramic-shaped hard protective layer after being ablated at high temperature, plays a role in preventing fire and fire, prevents short circuit and open circuit of a circuit, has good flexibility, has very excellent tensile strength, meets high-strength wrapping tension, and forms strong protection on the insulation of an inner layer. The cable is formed by twisting each cable core without adopting filling materials, the cable core is twisted by using non-woven fabrics, the temporary binding effect is achieved, the ceramic silicone rubber inner protective layer 4 is extruded outside the twisted cable core, the wrapped non-woven fabrics are removed during extrusion, the ceramic silicone rubber material is directly filled into gaps of the cable core, the cable core is compact and gapless, and the flame retardant property of the cable is improved. And then wrapping the ceramic fiber mica tape and the flame-retardant tape, wherein the ceramic fiber mica tape has excellent flexibility, heat insulation, shock resistance, corrosion resistance and good heat preservation, the flame-retardant tape is glass fiber and has excellent flame retardance and heat insulation performance, the ceramic fiber mica tape and the flame-retardant tape jointly form an oxygen-insulating layer with reinforcing performance, the inside of the cable can be effectively prevented from being influenced by flame and high temperature when encountering fire, and the A-level flame retardance of the cable is ensured. The outer sheath material is a low-smoke halogen-free flame-retardant polyolefin material, and the outer sheath is made of a low-smoke halogen-free flame-retardant polyethylene sheath material, so that the material is halogen-free, low in smoke quantity, high in flame retardance, good in physical and mechanical properties, high in breaking elongation, good in cracking resistance and environment-friendly.
The insulation and the sheath of the cable adopt halogen-free polymer materials with low smoke and zero halogen, high decomposition temperature and good mechanical property, and as the cable does not contain halide and metal oxide, harmful gas and a large amount of smoke can not be generated during combustion, the possibility of secondary disasters can not be caused, the cable also has good mechanical property and electrical property, meets the use requirement of the cable, and thoroughly changes the defects of the prior flame-retardant cable.
The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the present utility model in any way; those skilled in the art will readily appreciate that the present utility model may be implemented as shown in the drawings and described above; however, those skilled in the art will appreciate that many modifications, adaptations, and variations of the present utility model are possible in light of the above teachings without departing from the scope of the utility model; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present utility model still fall within the scope of the present utility model.
Claims (6)
1. The utility model provides a fire-retardant power cable, includes ceramic silicone rubber inner sheath (4), its characterized in that, ceramic silicone rubber inner sheath (4) inside has set up copper core flexible conductor (1), and copper core flexible conductor (1) surface has set up the insulating layer, and the insulating layer surface has set up around covering one, ceramic silicone rubber inner sheath (4) surface has set up around covering two, has set up around covering three around covering external surface, has set up the oversheath around covering three external surfaces.
2. A flame retardant power cable according to claim 1, characterized in that the insulation layer is a low smoke halogen free flame retardant polyolefin insulation layer (2).
3. A flame retardant power cable according to claim 1, wherein the first wrapping is a ceramic silicone rubber composite tape wrapping (3).
4. A flame retardant power cable according to claim 1, wherein the second wrapping layer is a ceramic fiber mica tape wrapping (5).
5. A flame retardant power cable according to claim 1, characterized in that the wrap three is a flame retardant tape wrap (6).
6. A flame retardant power cable according to claim 1, characterized in that the outer sheath is a low smoke halogen free flame retardant polyolefin sheath (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320850125.8U CN219936721U (en) | 2023-04-17 | 2023-04-17 | Flame-retardant power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320850125.8U CN219936721U (en) | 2023-04-17 | 2023-04-17 | Flame-retardant power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219936721U true CN219936721U (en) | 2023-10-31 |
Family
ID=88500368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320850125.8U Active CN219936721U (en) | 2023-04-17 | 2023-04-17 | Flame-retardant power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219936721U (en) |
-
2023
- 2023-04-17 CN CN202320850125.8U patent/CN219936721U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2022257682A1 (en) | Mineral-filled flame-retardant and fireproof isolation-type special cable for modern buildings | |
| CN210606739U (en) | Ceramic mineral insulation high-temperature-resistant super-flexible fireproof cable | |
| CN104464941A (en) | Novel insulated cable | |
| CN201984843U (en) | Halogen-free low-smoke flame-retardant cable | |
| CN112908545A (en) | High-strength flexible fireproof and fire-resistant cable and manufacturing method thereof | |
| CN209912603U (en) | Environment-friendly flame-retardant fire-resistant medium-voltage power cable | |
| CN219936721U (en) | Flame-retardant power cable | |
| CN217280178U (en) | Medium-voltage fire-resistant cable | |
| CN208284288U (en) | A kind of compound inslation fire-retardant fireproof flexible cable | |
| CN212782841U (en) | Flame-retardant B1-grade fireproof single-core power cable with corrugated metal sheath | |
| CN203102899U (en) | Mineral-insulated fireproof cable | |
| CN212907221U (en) | Medium-voltage fire-resistant cable | |
| CN214897764U (en) | High-strength flexible fireproof and fire-resistant cable | |
| CN205789175U (en) | Flexible mineral insulation fireproof cable | |
| CN209980842U (en) | Mineral substance rat-proof and termite-proof power-controlled environment-friendly cable | |
| CN101840747B (en) | Flexible fireproof layer flame-retardant and fire-resistant wire and cable | |
| CN210403276U (en) | Mineral cable | |
| CN203871055U (en) | Environment-friendly low-smoke zero-halogen flame-retardant cable | |
| CN203787127U (en) | Environment-friendly intrinsic safety type instrument cable | |
| CN216817938U (en) | 6-35 kV-level environment-friendly flame-retardant A-level fire-resistant high-carrying-capacity power cable | |
| CN219143854U (en) | Environment-friendly medium-voltage flame-retardant fire-resistant cable | |
| CN220672282U (en) | Flame-retardant heat-insulating medium-voltage power cable | |
| CN103903689A (en) | Environment-friendly intrinsic safety type instrument cable | |
| CN219534128U (en) | Flame-retardant power cable | |
| CN216849432U (en) | High-temperature-resistant irradiation crosslinked cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |