CN217740240U - B1-level flame-retardant power cable - Google Patents
B1-level flame-retardant power cable Download PDFInfo
- Publication number
- CN217740240U CN217740240U CN202222126881.4U CN202222126881U CN217740240U CN 217740240 U CN217740240 U CN 217740240U CN 202222126881 U CN202222126881 U CN 202222126881U CN 217740240 U CN217740240 U CN 217740240U
- Authority
- CN
- China
- Prior art keywords
- level
- retardant
- fire
- power cable
- protection
- 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
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
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The utility model discloses a B1 level fire-retardant power cable, including protection component, the fire-retardant oversheath of B1 level and the fire-retardant inner sheath of B1 level, the fixed fire-retardant inner sheath of B1 level that is provided with in inside of the fire-retardant oversheath of B1 level, the fixed coated aluminum strip that is provided with in inside of the fire-retardant inner sheath of B1 level, protection component has been cup jointed to the surperficial equidistance of the fire-retardant oversheath of B1 level, positioning component has been cup jointed between the protection component. The utility model discloses an inside at the fire-retardant oversheath of B1 level is fixed and is provided with the fire-retardant inner sheath of B1 level, can utilize the fire-retardant oversheath of B1 level and the fire-retardant inner sheath of B1 level to carry out multistage protection to power cable, thereby improve power cable's flame retardant efficiency, utilize coated aluminum tape and PBT pine sleeve pipe to carry out multistage protection to the copper conductor after that, improve copper conductor's life, it supports the guard plate to recycle the connecting piece, utilize rubber protection pad to prevent that power cable from receiving the damage at the in-process of laying after that, thereby improve power cable's life.
Description
Technical Field
The utility model relates to a power cable technical field specifically is a fire-retardant power cable of B1 level.
Background
The power cable is used for transmitting and distributing electric energy, the power cable is usually used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and river-crossing undersea power transmission lines, the flame-retardant power cable is any one of the power cables, a test sample is burnt under specified test conditions, after a test fire source is removed, the spread of flame is only in a limited range, and residual flame or residual ignition can be automatically extinguished within a limited time.
Through retrieval, patent publication No. CN216014913U discloses a B1 grade flame retardant power cable. Comprises a copper conductor, a fire-resistant layer and an insulating layer; the copper conductor comprises a first copper core, a second copper core, a third copper core, a fourth copper core and a fifth copper core; a fireproof layer is sleeved on the outer rings of the first copper core, the second copper core, the third copper core, the fourth copper core and the fifth copper core, and an insulating layer is arranged on the outer ring of the fireproof layer; fillers are arranged between five copper conductors provided with the fire-resistant layers and the insulating layers; the outer ring of the copper conductor provided with the filler is sleeved with a plurality of layers of flame retardant belts, and the outermost side of the flame retardant belt is sleeved with a halogen-free low-smoke sheath. This device reaches the cable of national high flame retardant grade to reach better fire-retardant fireproof effect.
The existing B1-level flame-retardant power cable has the following defects:
1. the power cable is inconvenient to be protected in multiple stages, so that the flame retardant effect of the power cable is influenced;
2. the power cable is easily damaged in the process of laying, thereby affecting the service life of the power cable.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
To prior art not enough, the utility model provides a fire-retardant power cable of B1 level.
(II) technical scheme
The utility model provides a B1 level fire-retardant power cable, includes protection component, the fire-retardant oversheath of B1 level and the fire-retardant inner sheath of B1 level, the fixed fire-retardant inner sheath of B1 level that is provided with in inside of the fire-retardant oversheath of B1 level, the fixed coating aluminium strip that is provided with in inside of the fire-retardant inner sheath of B1 level, protection component has been cup jointed to the surperficial equidistance of the fire-retardant oversheath of B1 level, positioning assembly has been cup jointed between the protection component.
Preferably, a coated steel strip is fixedly arranged inside the B1-level flame-retardant outer sheath.
Preferably, the inner wall of the B1-level flame-retardant inner sheath is fixedly provided with aramid fiber, and the aramid fiber is fixedly provided with water-blocking yarns inside.
Preferably, the inner wall of the aluminum-coated strip is fixedly provided with a shielding layer, the inner part of the shielding layer is annularly sleeved with a PBT loose tube, copper conductors are fixedly arranged inside the PBT loose tube, and a filling layer is fixedly arranged between the PBT loose tubes.
Preferably, the protection component includes the adapter sleeve, and the connecting piece is installed to the both sides equidistance of adapter sleeve, and the opposite face of connecting piece is fixed mounting all has the guard plate, and the opposite face of guard plate is fixed all to be provided with the protection and fills up.
Preferably, the locating component comprises a locating sleeve, locating blocks are fixedly mounted on two sides of the locating sleeve, a locating bolt is fixedly mounted inside the locating block, an inner thread block is fixedly mounted on the surface of the locating sleeve, and a screw rod is mounted on the surface of the inner thread block in a threaded mode.
(III) advantageous effects
The utility model provides a B1 level flame retardant power cable has following advantage:
(1) The B1-level flame-retardant inner sheath is fixedly arranged inside the B1-level flame-retardant outer sheath, so that the B1-level flame-retardant outer sheath and the B1-level flame-retardant inner sheath can be used for performing multi-level protection on the power cable, the flame-retardant effect of the power cable is improved, and then the coated aluminum tape and the PBT loose tube are used for performing multi-level protection on the copper conductor, so that the service life of the copper conductor is prolonged;
(2) The protection assemblies are sleeved on the surface of the aluminum-coated strip at equal intervals, so that the protection plates can be supported by the connecting pieces, and then the rubber protection pad can prevent the power cable from being damaged in the laying process, so that the service life of the power cable is prolonged;
(3) Through having cup jointed locating component between protection component, can rotate the screw rod, utilize the screw rod to remove in the inside of internal thread piece after that to fix protection component on power cable's surface, then utilize the pilot pin cooperation locating piece to fix power cable, the staff of being convenient for lays work with power cable.
Drawings
Fig. 1 is a perspective view of the present invention;
FIG. 2 is a schematic view of the present invention;
FIG. 3 is a schematic top view of a partial structure of the coated aluminum strip of the present invention;
fig. 4 is a schematic view of a partial structure of the B1-level flame-retardant inner sheath in a top view;
FIG. 5 is a partial perspective view of the protective assembly of the present invention;
fig. 6 is a partial perspective view of the positioning assembly of the present invention.
In the figure: 1. a guard assembly; 101. a connecting member; 102. connecting sleeves; 103. a protection plate; 104. a protective pad; 2. a positioning assembly; 201. positioning a block; 202. an internal thread block; 203. a positioning sleeve; 204. positioning bolts; 205. a screw; 3. a B1-level flame-retardant outer sheath; 301. coating a steel strip; 4. b1 level flame-retardant inner sheath; 401. aramid fiber; 402. water-blocking yarn; 5. coating an aluminum strip; 501. a shielding layer; 502. PBT loose tube; 503. a filling layer; 504. a copper conductor.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
As shown in fig. 1-6, the utility model provides a B1 level flame retardant power cable, including protection component 1, B1 level flame retardant outer sheath 3 and B1 level flame retardant inner sheath 4, the inside fixed B1 level flame retardant inner sheath 4 that is provided with of B1 level flame retardant outer sheath 3, the fixed aramid fiber 401 that is provided with of inner wall of B1 level flame retardant inner sheath 4, and the fixed yarn 402 that blocks water that is provided with of inside of aramid fiber 401, the fixed coated steel strip 301 that is provided with of inside of B1 level flame retardant outer sheath 3, the fixed coated aluminum strip 5 that is provided with of inside of B1 level flame retardant inner sheath 4, the fixed shielding layer 501 that is provided with of inner wall of coated aluminum strip 5, the inside snare of shielding layer 501 is provided with PBT loose tube 502, the inside of PBT loose tube 502 all is fixed with copper conductor 504, the fixed filling layer 503 that is provided with between PBT loose tube 502;
specifically, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, when the cable is used, the B1-level flame-retardant inner sheath 4 is fixedly arranged inside the B1-level flame-retardant outer sheath 3, so that the B1-level flame-retardant outer sheath 3 and the B1-level flame-retardant inner sheath 4 can be used for performing multi-level protection on the power cable, thereby improving the flame-retardant effect of the power cable, and then the aluminum-coated tape 5 and the PBT loose tube 502 are used for performing multi-level protection on the copper conductor 504, so that the service life of the copper conductor 504 is prolonged, the B1-level flame-retardant outer sheath 3 and the B1-level flame-retardant inner sheath 4 are made of a special B1-level low-smoke halogen-free flame-retardant polyolefin material, and the release amount of halogen acid gas, toxicity and corrosive gas is very small when the power cable is burned;
the surface of the B1-level flame-retardant outer sheath 3 is sleeved with the protection components 1 at equal intervals, each protection component 1 comprises a connecting sleeve 102, connecting pieces 101 are arranged on two sides of each connecting sleeve 102 at equal intervals, protection plates 103 are fixedly arranged on opposite surfaces of the connecting pieces 101, and protection pads 104 are fixedly arranged on opposite surfaces of the protection plates 103;
specifically, as shown in fig. 2 and 5, when in use, the protection assembly 1 is sleeved on the surface of the aluminum-coated strip 5 at equal intervals, the protection plate 103 can be supported by the connecting piece 101, and then the rubber protection pad 104 can prevent the power cable from being damaged in the laying process, so that the service life of the power cable is prolonged;
the positioning assembly 2 is sleeved between the protection assemblies 1, the positioning assembly 2 comprises a positioning sleeve 203, positioning blocks 201 are fixedly mounted on two sides of the positioning sleeve 203, a positioning bolt 204 is fixedly mounted inside the positioning block 201, an inner thread block 202 is fixedly mounted on the surface of the positioning sleeve 203, and a screw 205 is mounted on the surface thread of the inner thread block 202;
specifically, as shown in fig. 1 and 6, when the cable protection device is used, the positioning assembly 2 is sleeved between the protection assemblies 1, the screw rod 205 can be rotated, then the screw rod 205 is used for moving inside the inner thread block 202, so that the protection assemblies 1 are fixed on the surface of a power cable, then the positioning bolt 204 is used for fixing the power cable in cooperation with the positioning block 201, and a worker can lay the power cable conveniently.
The working principle is as follows: when the power cable is used, firstly, the protection plate 103 is supported through the connecting piece 101, and then the rubber protection pad 104 can prevent the power cable from being damaged in the laying process, so that the service life of the power cable is prolonged;
secondly, the screw 205 is rotated, and then the screw 205 is used for moving inside the internal thread block 202, so that the protection component 1 is fixed on the surface of the power cable, and then the positioning bolt 204 is used for fixing the power cable in cooperation with the positioning block 201, so that a worker can conveniently lay the power cable;
finally, the power cable is protected in multiple stages by a B1-stage flame-retardant outer sheath 3 and a B1-stage flame-retardant inner sheath 4, followed by a copper conductor 504 protected in multiple stages by a coated aluminum tape 5 and a PBT loose tube 502.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and applications of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a fire-retardant power cable of B1 level, includes protection component (1), fire-retardant oversheath of B1 level (3) and fire-retardant inner sheath of B1 level (4), its characterized in that: the fixed fire-retardant inner sheath of B1 level (4) that is provided with of inside of B1 level fire-retardant oversheath (3), the fixed coated aluminum strip (5) that is provided with in inside of B1 level fire-retardant inner sheath (4), protection component (1) has been cup jointed to the surperficial equidistance of B1 level fire-retardant oversheath (3), positioning component (2) have been cup jointed between protection component (1).
2. The B1-class flame retardant power cable according to claim 1, wherein: and a coating steel belt (301) is fixedly arranged inside the B1-level flame-retardant outer sheath (3).
3. The B1-class flame retardant power cable according to claim 1, wherein: the inner wall of the B1-level flame-retardant inner sheath (4) is fixedly provided with aramid fibers (401), and water-blocking yarns (402) are fixedly arranged inside the aramid fibers (401).
4. The B1-class flame retardant power cable according to claim 1, wherein: the inner wall of the aluminum-coated strip (5) is fixedly provided with a shielding layer (501), the inner part of the shielding layer (501) is annularly sleeved with a PBT loose tube (502), copper conductors (504) are fixedly arranged inside the PBT loose tube (502), and a filling layer (503) is fixedly arranged between the PBT loose tubes (502).
5. The B1-class flame retardant power cable according to claim 1, wherein: the protection assembly (1) comprises a connecting sleeve (102), connecting pieces (101) are installed on two sides of the connecting sleeve (102) in an equal distance mode, protection plates (103) are fixedly installed on opposite surfaces of the connecting pieces (101), and protection pads (104) are fixedly arranged on opposite surfaces of the protection plates (103).
6. The B1-class flame retardant power cable according to claim 1, wherein: locating component (2) includes position sleeve (203), and the both sides of position sleeve (203) are all fixed mounting have locating piece (201), and the inside fixed mounting of locating piece (201) has pilot pin (204), and the fixed surface of position sleeve (203) installs interior screw thread piece (202), and screw rod (205) are installed to the surface thread of interior screw thread piece (202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222126881.4U CN217740240U (en) | 2022-08-12 | 2022-08-12 | B1-level flame-retardant power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222126881.4U CN217740240U (en) | 2022-08-12 | 2022-08-12 | B1-level flame-retardant power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217740240U true CN217740240U (en) | 2022-11-04 |
Family
ID=83813675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222126881.4U Active CN217740240U (en) | 2022-08-12 | 2022-08-12 | B1-level flame-retardant power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217740240U (en) |
-
2022
- 2022-08-12 CN CN202222126881.4U patent/CN217740240U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN217740240U (en) | B1-level flame-retardant power cable | |
| CN210182994U (en) | Bury formula cable duct with high strength MPP | |
| CN217690572U (en) | Anti-seismic fire-resistant power cable | |
| CN218602163U (en) | Thin steel wire armored halogen-free low-smoke flame-retardant sheath control cable | |
| CN213150421U (en) | Flame-retardant and explosion-proof cable for explosive places | |
| CN113451956A (en) | Cable duct bank | |
| CN218455991U (en) | High-voltage fire-resistant power cable | |
| CN213877617U (en) | High-strength fireproof cable | |
| CN111477400A (en) | Distributed optical fiber temperature measurement power cable | |
| CN209993386U (en) | Wear-resistant silicon rubber insulated cable wire | |
| CN217485138U (en) | Power cable based on multiple flame-retardant structure | |
| CN215815352U (en) | Halogen-free low-smoke power cable for coal mine | |
| CN220752365U (en) | Indoor wiring optical cable structure | |
| CN218782805U (en) | Photoelectric integrated cable with high comprehensive performance | |
| CN213271379U (en) | Connecting pipe fitting for petroleum drilling | |
| CN212675967U (en) | Distributed optical fiber temperature measurement power cable | |
| CN217640759U (en) | 35kV aluminum alloy core crosslinked polyethylene insulation halogen-free low-smoke flame-retardant power cable | |
| CN213070662U (en) | Submarine power cable | |
| CN211578412U (en) | Intelligent household rectangular wiring wire with double-layer insulation thin-wall sheath | |
| CN210224857U (en) | Anti-static steel wire reinforced hose | |
| CN218100788U (en) | Corrosion-resistant polypropylene insulating fireproof power cable | |
| CN211907066U (en) | Optical fiber composite mineral substance insulated flexible fire-resistant cable | |
| CN218241387U (en) | Wire and cable with good wear resistance | |
| CN217982906U (en) | High-low temperature-resistant high-flame-retardant shielding control cable | |
| CN214068424U (en) | Cable structure for composite robot |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |