CN209000613U - A kind of high fire resistance buried cable - Google Patents
A kind of high fire resistance buried cable Download PDFInfo
- Publication number
- CN209000613U CN209000613U CN201821568791.8U CN201821568791U CN209000613U CN 209000613 U CN209000613 U CN 209000613U CN 201821568791 U CN201821568791 U CN 201821568791U CN 209000613 U CN209000613 U CN 209000613U
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- fire resistance
- wall
- layer
- cable
- buried cable
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Abstract
The utility model discloses a kind of high fire resistance buried cables of buried cable technical field, including two wires cores, two metal cores are transversely arranged, the outer wall of two metal cores is successively socketed with insulation sleeve and fireproof covering, outer wall between two fireproof coverings is socketed with supporting sleeve, the high fire resistance buried cable, glass fibre fireproof covering and oxidation magnesium mineral fire resistance layer are wrapped up by the outer wall in metal core, make its fire resistance with higher when by high temperature or influence of fire, metal wire outer core is electroplate with metallic chromium layer simultaneously, improve its heat resistance, the spacing of two wires cores is increased using flat design, reduce the accumulation of heat during cable work, to guarantee the stability of its power transmission, equipped with the protective jacket for having spine, when cable is bitten by rodent, spine Tip can penetrate rodent cavity interior, effectively it can be prevented to continue the cable that bites.
Description
Technical field
The utility model relates to buried cable technical field, specially a kind of high fire resistance buried cable.
Background technique
Buried cable is different from overhead high-tension line, and buried cable is often layed in cable duct, tunnel, pipeline or interior.Into
After entering modern society, due to urban land anxiety, traffic pressure is big, and the reasons such as appearance of the city construction, big city generallys use underground electricity
Cable power transmission mode.Relative to overhead line, cable has many advantages, such as to take up little area, transmit electricity reliable, strong antijamming capability.Since cable is normal
In pipeline or tunnel, narrow space needs to reduce the accumulation of cable heat, and its once invasion by fire, replacement
Impaired cable is more inconvenient, it is therefore necessary to its fire resistance is improved, to reduce the extent of damage of cable, when this outer cable is long
Between be in the underground space, also require cable to have the function of that anti-rodent bites, that is, avoid cable from being stung by rodent
It is disconnected, influence the conveying of electric power.
Utility model content
The purpose of this utility model is to provide a kind of high fire resistance buried cables, to solve to propose in above-mentioned background technique
Cable be often in pipeline or tunnel, narrow space needs to reduce the accumulation of cable heat, and once it is by fire
Invasion, it is more inconvenient to replace impaired cable, it is therefore necessary to its fire resistance is improved, to reduce the extent of damage of cable, this
Outer cable is in the underground space for a long time, also requires cable to have the function of that anti-rodent bites, that is, cable is avoided to be nibbled
The problem of tooth class animal bites broken, influences the conveying of electric power.
To achieve the above object, the utility model provides the following technical solutions: a kind of high fire resistance buried cable, including two
Wires core, two metal cores are transversely arranged, and the outer wall of two metal cores is successively socketed with insulation sleeve
And fireproof covering, the outer wall between two fireproof coverings are socketed with supporting sleeve, the outer wall of the supporting sleeve is coated with fire resistance layer, institute
The outer wall for stating fire resistance layer is socketed with protective jacket, the outer wall of the protective jacket uniformly integrally formed with spine, the protective jacket it is outer
Wall is socketed with water string.
Preferably, the every metal core includes 10-15 root copper core, and the mutual wringing of copper core is together, described
The outer wall of copper core is electroplate with metallic chromium layer.
Preferably, the fireproof covering includes glass layer and iron oxide red layer of silica gel, and the iron oxide red layer of silica gel is viscous
It is connected to the outer wall of glass layer.
Preferably, the supporting sleeve is in flat with water string, and the internal chamber wall of the supporting sleeve is uniformly provided with
Graininess protrusion, the supporting sleeve are fire-retardant PU supporting sleeve.
Preferably, the fire resistance layer is magnesia fire resistance layer.
Preferably, the protective jacket is crosslinked polyethylene protective jacket.
Preferably, the water string has been embedded in alkali-resistant glass fiber mesh, and the water string is polytetrafluoroethylene (PTFE) waterproof jacket
Pipe.
Compared with prior art, the utility model has the beneficial effects that the high fire resistance buried cable, by metal wire
Core outer wall package glass fibre fireproof covering and oxidation magnesium mineral fire resistance layer, make its when by high temperature or influence of fire have compared with
High fire resistance, while metal wire outer core is electroplate with metallic chromium layer, improves its heat resistance, is increased using flat design
The spacing of two wires cores, reduces the accumulation of heat during cable work, to guarantee the stability of its power transmission,
Equipped with the protective jacket for having spine, when cable is bitten by rodent, the tip of spine can penetrate rodent
Cavity interior effectively can prevent it from continuing the cable that bites.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model supporting sleeve top view.
In figure: 1 metal core, 2 insulation sleeves, 3 fireproof coverings, 4 supporting sleeves, 5 fire resistance layers, 6 protective jackets, 7 spines, 8 waterproofs
Casing.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of technical solution referring to FIG. 1-2: a kind of high fire resistance buried cable, including two
Metal core 1, two metal cores 1 are transversely arranged, and the outer wall of two metal cores 1 is successively socketed with insulation sleeve
2 and fireproof covering 3, fireproof covering 3 makes it have good high temperature resistance, and insulation sleeve 2 is flame-proof PVC insulation sleeve, plays insulation and makees
With the outer wall between two fireproof coverings 3 is socketed with supporting sleeve 4, plays a supporting role, for keeping two wires cores 1
Position, the outer wall of the supporting sleeve 4 are coated with fire resistance layer 5, and the outer wall of the fire resistance layer 5 is socketed with protective jacket 6, the protection
The outer wall of set 6 is uniformly integrally formed with spine 7, and when being bitten by rodent, the tip of spine 7 can penetrate rodent
The cavity interior of animal, makes it have feeling of pain, it can effectively be prevented to continue the cable that bites, the outer wall set of the protective jacket 6
It is connected to water string 8, is played a protective role.
Wherein, the every metal core 1 includes 10-15 root copper core, and the mutual wringing of copper core is together, the copper
The outer wall of core wire is electroplate with metallic chromium layer, and metallic chromium layer has preferable heat resistance, and the fireproof covering 3 includes glass layer and oxygen
Change iron oxide red layer of silica gel, the iron oxide red layer of silica gel is adhered to the outer wall of glass layer, and iron oxide red layer of silica gel is for fixing
Glass layer, in flat, the internal chamber wall of the supporting sleeve 4 is uniformly provided with for the supporting sleeve 4 and water string 8
Granular protrusion, play the role of it is anti-skidding, the supporting sleeve 4 be fire-retardant PU supporting sleeve, have good high temperature resistance, it is described
Fire resistance layer 5 is magnesia fire resistance layer, and fire resistance is preferable, and the protective jacket 6 is crosslinked polyethylene protective jacket, is heated not variable
Shape, the water string 8 have been embedded in alkali-resistant glass fiber mesh, it can be improved in framework material of the alkali-resistant glass fiber mesh as water string 8
Integral strength, the water string 8 are polytetrafluoroethylene (PTFE) water string.
Working principle: the high fire resistance buried cable can be embedded in underground or be layed in cable duct, tunnel or pipeline, gold
The insulation sleeve 2 for belonging to 1 outer wall of core is flame-proof PVC insulation sleeve, plays insulating effect, and fireproof covering 3 is glass fibre fireproof covering, is had
Fireproofing function, then cooperate the magnesia fire resistance layer 5 with higher fire resistance, so that the whole fire resistance of the cable is preferable,
It also is electroplate with metallic chromium layer in 1 outer wall of metal core simultaneously, can make metal core 1 that there is good heat resistance, use is flat
Design increases the spacing of two wires cores 1, reduces the accumulation of heat during cable work, the outer wall of protective jacket 6 is equal
It is even integrally formed with spine 7, when being bitten by rodent, the tip of spine 7 can penetrate the oral cavity of rodent
Inside makes it have feeling of pain, effectively it can be prevented to continue the cable that bites.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (7)
1. a kind of high fire resistance buried cable, including two wires cores (1), two metal cores (1) are transversely arranged,
Be characterized in that: the outer wall of two metal cores (1) is successively socketed with insulation sleeve (2) and fireproof covering (3), two fireproof coverings
(3) outer wall between is socketed with supporting sleeve (4), and the outer wall of the supporting sleeve (4) is coated with fire resistance layer (5), the resistance to combustion
The outer wall of layer (5) is socketed with protective jacket (6), and the outer wall of the protective jacket (6) is uniformly integrally formed with spine (7), the protection
The outer wall of set (6) is socketed with water string (8).
2. a kind of high fire resistance buried cable according to claim 1, it is characterised in that: the every metal core (1)
Including 10-15 root copper core, and the mutual wringing of copper core is together, and the outer wall of the copper core is electroplate with metallic chromium layer.
3. a kind of high fire resistance buried cable according to claim 1, it is characterised in that: the fireproof covering (3) includes glass
Glass fibrous layer and iron oxide red layer of silica gel, the iron oxide red layer of silica gel are adhered to the outer wall of glass layer.
4. a kind of high fire resistance buried cable according to claim 1, it is characterised in that: the supporting sleeve (4) and anti-
For jacket pipe (8) in flat, the internal chamber wall of the supporting sleeve (4) is uniformly provided with graininess protrusion, the supporting sleeve (4)
For fire-retardant PU supporting sleeve.
5. a kind of high fire resistance buried cable according to claim 1, it is characterised in that: the fire resistance layer (5) is oxidation
Magnesium fire resistance layer.
6. a kind of high fire resistance buried cable according to claim 1, it is characterised in that: the protective jacket (6) is crosslinking
Protective polyethylene set.
7. a kind of high fire resistance buried cable according to claim 1, it is characterised in that: the water string (8) is embedded
Entering has alkali-resistant glass fiber mesh, and the water string (8) is polytetrafluoroethylene (PTFE) water string.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821568791.8U CN209000613U (en) | 2018-09-26 | 2018-09-26 | A kind of high fire resistance buried cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821568791.8U CN209000613U (en) | 2018-09-26 | 2018-09-26 | A kind of high fire resistance buried cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209000613U true CN209000613U (en) | 2019-06-18 |
Family
ID=66800961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821568791.8U Active CN209000613U (en) | 2018-09-26 | 2018-09-26 | A kind of high fire resistance buried cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209000613U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111599517A (en) * | 2020-03-21 | 2020-08-28 | 朱永松 | High-flame-retardant high-shielding torsion-resistant cable |
-
2018
- 2018-09-26 CN CN201821568791.8U patent/CN209000613U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111599517A (en) * | 2020-03-21 | 2020-08-28 | 朱永松 | High-flame-retardant high-shielding torsion-resistant cable |
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