CN209980846U - Medium-voltage fire-resistant cable - Google Patents
Medium-voltage fire-resistant cable Download PDFInfo
- Publication number
- CN209980846U CN209980846U CN201921166299.2U CN201921166299U CN209980846U CN 209980846 U CN209980846 U CN 209980846U CN 201921166299 U CN201921166299 U CN 201921166299U CN 209980846 U CN209980846 U CN 209980846U
- Authority
- CN
- China
- Prior art keywords
- fire
- retardant
- assembly
- flame
- cable
- 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
Images
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model discloses a middling pressure fire resisting cable specifically is a fire resistance degree that improves the cable through fire-retardant filler and fire-retardant subassembly, and fire-resistant line band and separate the oxygen layer and play the fire-retardant function of secondary, utilize fire-retardant sheath to carry out external protection to the cable, and it is heat-resistant to prevent fires, and the steel band armor can improve the rigidity and the toughness of cable, and the resistance to compression is difficult for splitting, and it has effectively solved current cable when the conflagration, can not last normal operating's problem. The cable comprises a conductor assembly positioned at the center and a flame-retardant assembly coated outside the conductor assembly, wherein the conductor assembly is formed by tightly arranging a plurality of copper conductors in the flame-retardant assembly in a circumferential manner, and a flame-retardant filler is filled between the conductor assembly and the flame-retardant assembly.
Description
Technical Field
The utility model relates to a conductive wire rod specifically is a middling pressure fire resisting cable.
Background
Fire-resistant cable means a cable that can be kept in operation safely for a certain period of time in the event of a flame burn. Fire-resistant cables are widely used in places related to fire safety and fire life saving, such as high-rise buildings, underground railways, underground streets, large power stations, and important industrial and mining enterprises, for example, power supply lines and control lines of emergency facilities such as fire-fighting equipment and emergency guide lamps.
The fire-resistant cable is mostly used as a power supply loop of an emergency power supply and is required to normally work in case of fire, but the existing fire-resistant cable only depends on a fire-resistant material in case of fire, so that the heat insulation and flame retardant capability of the existing fire-resistant cable is still limited, the existing fire-resistant cable can only maintain power supply within a very limited time after the fire occurs, the normal and continuous operation of fire-fighting facilities cannot be guaranteed, and sufficient time cannot be provided for escape.
SUMMERY OF THE UTILITY MODEL
Based on the shortcomings in the prior art mentioned in the background art, the utility model provides a medium-voltage fire-resistant cable.
The utility model discloses an adopt following technical scheme to overcome above technical problem, specifically do:
the medium-voltage fire-resistant cable comprises a conductor assembly and a flame-retardant assembly, wherein the conductor assembly is positioned at the center, the flame-retardant assembly is coated outside the conductor assembly, the conductor assembly is formed by tightly arranging a plurality of copper conductors in the flame-retardant assembly in a circumferential mode, and flame-retardant filler is filled between the conductor assembly and the flame-retardant assembly.
As a further aspect of the present invention: the shielding assembly is wrapped on the outer portion of the copper conductor and comprises a conductor shielding ring directly wrapped on the outer wall of the copper conductor, an insulating layer sleeved on the outer wall of the shielding ring and an insulating shielding ring wrapped on the outer wall of the insulating layer.
As a further aspect of the present invention: and the outer wall of the insulating shielding ring is coated with a circle of metal shielding ring.
As a further aspect of the present invention: the flame-retardant assembly comprises a fire-resistant wire wrapping tape arranged outside the flame-retardant filler, a steel belt armor layer wrapped outside the fire-resistant wire wrapping tape, an oxygen separation layer sleeved on the outer wall of the steel belt armor layer and a flame-retardant sheath sleeved on the outer wall of the oxygen separation layer.
As a further aspect of the present invention: and a circle of isolation sleeve is arranged between the fire-resistant wire wrapping belt and the steel strip armor layer.
After the structure more than adopting, the utility model discloses compare in prior art, possess following advantage: improve the fire-resistant degree of cable through fire-retardant filler and fire-retardant subassembly, conductor shielding circle and metallic shield circle eliminate the produced magnetic field of conductor circular telegram, and is safer, and insulating layer and insulating shielding circle carry out the electrical property to the conductor and block, and fire-resistant line band plays the fire-retardant function of secondary with separating the oxygen layer, utilizes fire-retardant sheath to carry out outside protection to the cable, and it is heat-resisting to prevent fires, and the steel band armor can improve the rigidity and the toughness of cable, and the difficult fracture of resistance to compression.
Drawings
Fig. 1 is a cross-sectional view of a medium voltage fire resistant cable.
In the figure: 1-flame retardant sheath; 2-oxygen barrier layer; 3-steel tape armor layer; 4-an isolation sleeve; 5-fire-resistant wrapping tape; 6-flame retardant fillers; 7-a metallic shielding ring; 8-insulating shielding ring; 9-an insulating layer; 10-a conductor shield ring; 11-copper conductor.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
In addition, an element of the present invention may be said to be "secured to" or "disposed on" another element, either directly on the other element or with intervening elements present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Example 1
Referring to fig. 1, in an embodiment of the present invention, a medium voltage fire-resistant cable includes a conductor assembly located at a center, and a fire-retardant assembly wrapped outside the conductor assembly, wherein the conductor assembly is tightly arranged in the fire-retardant assembly by a plurality of copper conductors 11 circumferentially, a fire-retardant filler 6 is filled between the conductor assembly and the fire-retardant assembly, electric conduction is achieved through the conductor assembly, and the fire-retardant degree of the cable is improved by using the fire-retardant filler 6 and the fire-retardant assembly.
Specifically, the cladding has the shielding subassembly on copper conductor 11's the outside, and the shielding subassembly includes the conductor shielding circle 10 of direct cladding in copper conductor 11 outer wall, registrate in the insulating layer 9 of shielding circle 10 outer wall, cladding in the insulating shielding circle 8 of insulating layer 9 outer wall, and wherein, the cladding has round metallic shield circle 7 on the outer wall of insulating shielding circle 8, eliminates the produced magnetic field of conductor circular telegram through conductor shielding circle 10 and metallic shield circle 7, and is safer, and insulating layer 9 and insulating shielding circle 8 carry out the electrical blocking to the conductor.
Example 2
To further illustrate the medium voltage fire resistant cable described above, the present application provides a further embodiment in which the medium voltage fire resistant cable has the following technical features: the flame-retardant assembly comprises a fire-resistant wire wrapping tape 5 arranged outside the flame-retardant filler 6, a steel tape armoring layer 3 wrapped outside the fire-resistant wire wrapping tape 5, an oxygen-insulating layer 2 sleeved on the outer wall of the steel tape armoring layer 3 and a flame-retardant sheath 1 sleeved on the outer wall of the oxygen-insulating layer 2; play the fire-retardant function of secondary through fire-resistant line band 5 and separate oxygen layer 2, utilize fire-retardant sheath 1 to carry out the external protection to the cable, it is heat-resisting to prevent fires, and steel band armor 3 can improve the rigidity and the toughness of cable, difficult fracture.
Preferably, a circle of isolation sleeve 4 is arranged between the fire-resistant wire wrapping tape 5 and the steel tape armor layer 3, and the fire-resistant wire wrapping tape 5 and the flame-retardant filler 6 are wrapped by the isolation sleeve 4 to keep the circumference tightly gathered.
According to the detailed description of the above embodiments, it is easy to understand that the working principle of the present invention is: realize electrically conducting through conductor assembly, utilize fire-retardant filler 6 and fire-retardant subassembly to improve the fire-resistant degree of cable, conductor shield circle 10 and metallic shield circle 7 eliminate the produced magnetic field of conductor circular telegram, it is safer, insulating layer 9 and insulating shield circle 8 carry out the electrical property to the conductor and block, utilize fire-resistant line band 5 and separate oxygen layer 2 and play the fire-retardant function of secondary, utilize fire-retardant sheath 1 to carry out outside protection to the cable, it is heat-resistant to prevent fires, steel strip armor layer 3 can improve the rigidity and the toughness of cable, the difficult fracture of resistance to compression, wrap up fire-resistant line band 5 and fire-retardant filler 6 through separation sleeve 4, keep the circumference closely to gather together.
It should be noted that, fire-retardant filler is prior art's application in this application, improve the fire-resistant degree of cable through fire-retardant filler and fire-retardant subassembly, conductor shielding circle and metallic shield circle eliminate the produced magnetic field of conductor circular telegram, it is safer, insulating layer and insulating shielding circle carry out the electrical property to block the conductor, fire-resistant band and oxygen barrier play the fire-retardant function of secondary, utilize fire-retardant sheath to carry out outside protection to the cable, it is heat-resisting to prevent fires, the steel band armor can improve the rigidity and the toughness of cable, the difficult fracture of resistance to compression is the innovation point of this application, it has effectively solved current cable when the conflagration, can not last normal operating's problem.
The foregoing is illustrative of the preferred embodiments of the present invention only, and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to be changed. However, all changes which come within the scope of the independent claims of the invention are to be embraced therein.
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 invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Claims (5)
1. A medium-voltage fire-resistant cable comprises a conductor assembly and a flame-retardant assembly, wherein the conductor assembly is located at the center, the flame-retardant assembly is coated outside the conductor assembly, the conductor assembly is tightly arranged in the flame-retardant assembly by a plurality of copper conductors (11) in the circumference, and a flame-retardant filler (6) is filled between the conductor assembly and the flame-retardant assembly.
2. The medium voltage fire-resistant cable according to claim 1, wherein the copper conductor (11) is coated with a shielding assembly, and the shielding assembly comprises a conductor shielding ring (10) directly coated on the outer wall of the copper conductor (11), an insulating layer (9) sleeved on the outer wall of the shielding ring (10), and an insulating shielding ring (8) coated on the outer wall of the insulating layer (9).
3. A medium voltage fire resistant cable according to claim 2, characterized in that the outer wall of the insulating shield (8) is covered with a metallic shield (7).
4. The medium voltage fire resistant cable according to claim 1, wherein the fire resistant component comprises fire resistant tape (5) disposed outside the fire resistant filler (6), steel tape armor (3) disposed outside the fire resistant tape (5), oxygen barrier layer (2) sleeved on the outer wall of the steel tape armor (3), and fire resistant sheath (1) sleeved on the outer wall of the oxygen barrier layer (2).
5. A medium voltage fire resistant cable according to claim 4, characterized in that a ring of insulating jacket (4) is arranged between the fire resistant tape (5) and the steel tape armouring layer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921166299.2U CN209980846U (en) | 2019-07-23 | 2019-07-23 | Medium-voltage fire-resistant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921166299.2U CN209980846U (en) | 2019-07-23 | 2019-07-23 | Medium-voltage fire-resistant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209980846U true CN209980846U (en) | 2020-01-21 |
Family
ID=69286136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921166299.2U Active CN209980846U (en) | 2019-07-23 | 2019-07-23 | Medium-voltage fire-resistant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209980846U (en) |
-
2019
- 2019-07-23 CN CN201921166299.2U patent/CN209980846U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207602250U (en) | A kind of metallic spacer flexible fire-proof cable | |
| CN103971842A (en) | Polyvinyl chloride insulation and sheath flame-retardant and fire-proof power cable | |
| CN103177812A (en) | Environment-friendly medium-voltage fireproof cable | |
| CN201126736Y (en) | 6-10kV flame-proof power cable | |
| CN202584880U (en) | Polyvinyl chloride insulation and sheathed thin steel wire armored fireproof power cable | |
| CN207441331U (en) | A kind of fireproof metal shield controls cable | |
| CN214253955U (en) | Novel fireproof cable assembly | |
| CN209980846U (en) | Medium-voltage fire-resistant cable | |
| CN207895903U (en) | A kind of fire-retardant fireproof cable | |
| CN202694890U (en) | Low smoke zero halogen environment friendly light fire-resistant controlling cable | |
| CN203150243U (en) | Halogen-free flame-retardation fireproof control cable | |
| CN102855986A (en) | Anti-interference fire-resistant control cable | |
| CN202205499U (en) | Flame-proof high-temperature resistant ship-used power cable | |
| CN209980842U (en) | Mineral substance rat-proof and termite-proof power-controlled environment-friendly cable | |
| CN211181692U (en) | Environment-friendly flexible mineral cable | |
| CN210271899U (en) | Electric wire with partition plate | |
| CN203520988U (en) | Zero-halogen low-smoke cables flame-retardant medium-voltage fireproof cable | |
| CN202839099U (en) | Silicone-rubber insulating high-temperature-resistant power cable | |
| CN217640751U (en) | Fire-resistant low-smoke halogen-free cable | |
| CN219143854U (en) | Environment-friendly medium-voltage flame-retardant fire-resistant cable | |
| CN212750456U (en) | Copper core crosslinked polyethylene insulation fire-resistant flame-retardant cable | |
| CN217405146U (en) | Fireproof mining wear-resistant waterproof wire cable | |
| CN210403265U (en) | Mineral insulated cable | |
| CN217562270U (en) | Halogen-free low-smoke flame-retardant power cable for coal mine | |
| CN204360817U (en) | A kind of isolated form steel-tape armouring fire-resisting cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |