CN218568495U - Fireproof cable - Google Patents
Fireproof cable Download PDFInfo
- Publication number
- CN218568495U CN218568495U CN202222680285.0U CN202222680285U CN218568495U CN 218568495 U CN218568495 U CN 218568495U CN 202222680285 U CN202222680285 U CN 202222680285U CN 218568495 U CN218568495 U CN 218568495U
- Authority
- CN
- China
- Prior art keywords
- cable
- fire
- retardant
- sheath
- 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.)
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- 239000003063 flame retardant Substances 0.000 claims abstract description 35
- -1 polypropylene Polymers 0.000 claims abstract description 11
- 239000004743 Polypropylene Substances 0.000 claims abstract description 8
- 239000004020 conductor Substances 0.000 claims abstract description 8
- 229920001155 polypropylene Polymers 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 8
- 238000009413 insulation Methods 0.000 claims abstract description 7
- 238000012856 packing Methods 0.000 claims abstract description 6
- 238000005253 cladding Methods 0.000 claims abstract description 4
- 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 description 19
- 230000009970 fire resistant effect Effects 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 3
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 230000002265 prevention Effects 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 28
- 239000011241 protective layer Substances 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Images
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 provides a fire prevention type cable, includes cable inner core and cable sheath, the cable sheath cladding is on the cable inner core, the cable inner core is cable core, conductor shielding layer, insulating layer and insulation shielding layer by interior outside to in proper order, the cable sheath is interior sheath, woven shield, outer jacket and fire-retardant layer by interior outside to in proper order, be provided with fire-retardant packing in the clearance in the cable sheath and the cable inner core outside. The utility model discloses be provided with fire-retardant layer and be provided with fire-retardant packing in cable inside clearance at the cable skin, fire-retardant packing is polypropylene fire retardant powder, provides twice fire-retardant protective screen through setting up like this. The outer layer of the cable core is wrapped with the conductor shielding layer and the insulation shielding layer, so that local discharge is avoided, and the safety of high-voltage transmission is improved.
Description
Technical Field
The utility model relates to the technical field of cables, concretely relates to fire prevention type cable.
Background
With the rapid growth of national economy, especially the acceleration of rural and urban power grid construction and transformation pace and the vigorous development of the land industry in various regions, the electric power industry in China is rapidly developed, thereby promoting the development of the electric industry matched with the electric power industry, especially the development of the electric wire and cable industry, and showing the diversified trend of the variety development of the electric wire and cable. The electric wire and cable has been developed from pure power transmission to multi-functionalization, i.e. new characteristics are added according to different purposes. For example: flame retardant cables, fire resistant cables, low halogen low smoke cables, halogen free low smoke cables and the like. The flame-retardant cable is also called a fireproof cable, and has the characteristics of limiting the combustion within a local range, not generating spreading, protecting other various equipment and avoiding causing larger loss. Its structure of current fire prevention type cable is only at the fire-retardant layer of surface coating one deck, and its fire resistance and security are not high, are difficult to use under special environment, for this reason, the utility model provides a fire prevention type cable.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fire prevention type cable to expect to improve the fire resistance and the security of cable.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model provides a fire prevention type cable, includes cable inner core and cable sheath, the cable sheath cladding is on the cable inner core, the cable inner core is cable core, conductor shielding layer, insulating layer and insulation shielding layer by interior outside to in proper order, the cable sheath is interior sheath, woven shield, outer jacket and fire-retardant layer by interior outside to in proper order, be provided with fire-retardant packing in the clearance in the cable sheath and the cable inner core outside.
Furthermore, the cable cores are copper wires, and the number of the cable cores is 4 and the cable cores are in a spiral winding structure.
Further, the insulating layer is crosslinked polyethylene.
Furthermore, the inner protective layer and the outer protective layer are both made of polyethylene, and the braided shielding layer is embedded between the inner protective layer and the outer protective layer.
Further, the flame-retardant filling is polypropylene flame retardant powder.
Further, the outer surface of the insulation shielding layer is coated with an adhesive.
Compared with the prior art, the utility model discloses can realize one of following beneficial effect:
1. the outer layer of the cable is provided with the flame-retardant layer, flame-retardant filling is arranged in the gap inside the cable, the flame-retardant filling is polypropylene flame retardant powder, and two flame-retardant barriers are provided by the arrangement.
2. The outer layer of the cable core is wrapped with the conductor shielding layer and the insulation shielding layer, so that partial discharge is avoided, and the safety of high-voltage transmission is improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
1-cable core, 2-conductor shielding layer, 3-insulating layer, 4-insulating shielding layer, 5-flame retardant filling, 6-inner protective layer, 7-braided shielding layer, 8-outer protective layer and 9-flame retardant layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, the utility model provides a fire-proof cable, including cable inner core and cable sheath, the cable sheath cladding is on the cable inner core, the cable inner core is cable core 1, conductor shielding layer 2, insulating layer 3 and insulation shielding layer 4 by inside to outside in proper order, cable core 1 is the copper line, and the copper line is many and the transposition sticiss, insulating layer 3 is crosslinked polyethylene, has better mechanical properties and heat resistance, and the quantity of cable core 1 is 4 and is spiral winding structure, the cable sheath is interior sheath 6, weaving shielding layer 7, outer jacket 8 and fire-retardant layer 9 by inside to outside in proper order, be provided with fire-retardant packing 5 in the clearance in cable sheath and the cable inner core outside, interior sheath 6 and outer jacket 8 are the polyethylene, and the thickness of interior sheath 6 and outer jacket 8 will be greater than other hierarchical structure to reach better guard action, weave that shielding layer 7 imbeds and set up between sheath 6 and outer jacket 8, woven shield layer 7 has set up the bending resistance who has increased the cable conductor. The flame-retardant filling 5 is polypropylene flame retardant powder. The outer surface of the insulating shielding layer 4 is coated with the binder, so that part of the polypropylene flame retardant powder can be bonded on the surface, the flame-retardant filler 5 serves as a flame-retardant second barrier, when the cable sheath is burnt, the polypropylene flame retardant powder leaks out and falls to a burning point to press a flame, and the polypropylene flame retardant powder bonded on the surface of the insulating shielding layer 4 can also achieve a flame-retardant effect.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
Claims (6)
1. A fire-proof cable is characterized in that: including cable inner core and cable sheath, the cable sheath cladding is on the cable inner core, the cable inner core is cable core (1), conductor shield (2), insulating layer (3) and insulation shield (4) by interior outside to in proper order, the cable sheath is interior sheath (6), braided shield (7), outer jacket (8) and fire-retardant layer (9) by interior outside to in proper order, be provided with fire-retardant packing (5) in the clearance in the cable sheath and the cable inner core outside.
2. A fire-resistant cable according to claim 1, wherein: the cable core (1) is a copper wire, and the number of the cable cores (1) is 4 and the cable cores are in a spiral winding structure.
3. A fire-resistant cable according to claim 1, wherein: the insulating layer (3) is cross-linked polyethylene.
4. A fire-resistant cable according to claim 1, wherein: interior sheath (6) and outer jacket (8) are the polyethylene, and braided shield (7) embedding sets up between sheath (6) and outer jacket (8) including.
5. A fire-resistant cable according to claim 1, wherein: the flame-retardant filling (5) is polypropylene flame retardant powder.
6. A fire-resistant cable according to claim 1, wherein: the outer surface of the insulating shielding layer (4) is coated with an adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222680285.0U CN218568495U (en) | 2022-10-11 | 2022-10-11 | Fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222680285.0U CN218568495U (en) | 2022-10-11 | 2022-10-11 | Fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218568495U true CN218568495U (en) | 2023-03-03 |
Family
ID=85315822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222680285.0U Active CN218568495U (en) | 2022-10-11 | 2022-10-11 | Fireproof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218568495U (en) |
-
2022
- 2022-10-11 CN CN202222680285.0U patent/CN218568495U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |