CN209843354U - High-flame-retardant medium-voltage power cable - Google Patents
High-flame-retardant medium-voltage power cable Download PDFInfo
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- CN209843354U CN209843354U CN201920795234.8U CN201920795234U CN209843354U CN 209843354 U CN209843354 U CN 209843354U CN 201920795234 U CN201920795234 U CN 201920795234U CN 209843354 U CN209843354 U CN 209843354U
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Abstract
A high-flame-retardance medium-voltage power cable is characterized in that a shielding copper strip is arranged on the periphery of a conductor, an insulating layer is arranged between the shielding copper strip and the conductor, the insulating layer and the shielding copper strip form a cable core, Y-shaped separation strips are arranged between the peripheries of three cable cores distributed in an isosceles triangle shape, the Y-shaped separation strips are equally divided into three cable core placing cavities, the three cable cores are respectively positioned in the three cable core placing cavities, a wrapping tape is arranged on the periphery of each separation strip, the cross section of the wrapping tape is circular, sector filling strips are filled between the inner wall of the wrapping tape and the periphery of each cable core and between the cable core placing cavities, a steel belt is arranged on the periphery of the wrapping; the utility model discloses not only fire-retardant, fire resistance is good, and mechanical strength is excellent, and chemical stability is good moreover, and the environmental protection is pollution-free.
Description
Technical Field
The utility model relates to a power cable field especially relates to a high fire-retardant middling pressure power cable.
Background
Modern life relies on electric power more and more, the cable is indispensable as the circuit of power transmission in the modern building, along with high-rise building, hospital, hotel, station and airport etc. constantly increase, and subway, urban rail transit, the construction of large-scale public facility, the importance of fire safety also shows day by day, the laying amount of cable increases at double in the building, the building begins to adopt fire-resistant flame retardant cable to supply power the imperative, as fire-resistant cable, the flame retardant coating is under flame or high temperature condition, not only fire-retardant fire-resistant, but also have higher adiabaticity in order to guarantee that external high temperature does not harm internal insulation, guarantee the integrality of circuit in certain time after catching fire of cable.
In view of the above, a high flame retardant medium voltage power cable has been developed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming not enough among the prior art, providing a high fire-retardant middling pressure power cable, it is fire-retardant not only, refractiveness is good, and mechanical strength is excellent, and chemical stability is good moreover, and the environmental protection is pollution-free.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme: a high flame-retardant medium-voltage power cable is composed of: the cable comprises a conductor, an insulating layer, a shielding copper strip, a fan-shaped filling strip, a wrapping tape, a steel strip, a sheath and a separating strip; the periphery of the conductor is provided with a shielding copper strip, an insulating layer is arranged between the shielding copper strip and the conductor, the insulating layer and the shielding copper strip form a cable core, separation strips in a Y shape are arranged between the peripheries of three cable cores distributed in an isosceles triangle shape, the separation strips in the Y shape are equally divided into three cable cores for placing cavities, the three cable cores are respectively located in the cavities placed by the three cable cores, the peripheries of the separation strips are arranged around the tape, the cross section of the tape is circular, fan-shaped filling strips are filled between the cavities placed around the inner wall of the tape and the periphery of the cable cores and the cable cores, a steel belt is arranged around the periphery of the tape.
The conductor has the structure that: the circular shape sinle silk periphery sets up compresses tightly the conductor, compresses tightly the conductor and comprises inlayer and skin, the inlayer by evenly cut apart into at least quartering, the skin by evenly cut apart into at least eight equal divisions, inlayer and outer every equal division are fan-shaped, the fan-shaped area of every equal division of inlayer is greater than the fan-shaped area of outer every equal division.
The fan-shaped filling strips are made of high flame-retardant glass fibers.
The wrapping tape adopts a high flame retardant glass cloth tape.
The steel belt is a fluorophlogopite belt.
The utility model has the advantages that: the utility model discloses a conductor intussuseption is filled with the packing, and the outer winding of packing has around the band, and the packing is with adopt high fire-retardant glass fiber, high fire-retardant glass strap respectively around the band for the conductor can be under high fire-resistant and high fire-retardant condition safe and reliable's transmission electric energy, and the winding has fluorophlogopite outside around the band again, and the fluorophlogopite area does not contain fluorophlogopiteCrystal waterThe melting point of 1375 ℃, safety margin is big, and high temperature resistance is good, the utility model discloses not only fire-retardant, fire resistance is good, and mechanical strength is excellent, and chemical stability is good moreover, and the environmental protection is pollution-free.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
FIG. 1 is a schematic view of the assembly structure;
in fig. 1: the cable comprises a conductor 1, an insulating layer 2, a shielding copper strip 3, a fan-shaped filling strip 4, a wrapping tape 5, a steel strip 6, a sheath 7 and a separation strip 8.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings:
the periphery of conductor 1 sets up shielding copper strips 3, sets up insulating layer 2 between shielding copper strips 3 and the conductor 1, and conductor 1, insulating layer 2 and shielding copper strips 3 constitute the cable core, set up the parting bead 8 of Y shape between the periphery of three cable cores that are isosceles triangle distribution, the parting bead 8 of Y shape equally divide and place the cavity for three cable core, three cable cores are located respectively three cable cores place in the cavity, the periphery of parting bead 8 sets up around band 5, is circular around the cross-section of band 5, places around the periphery of the inner wall of band 5 and cable core, cable core and fills fan-shaped filler 4 between the cavity, sets up steel band 6 around the periphery of band 5, and the periphery of steel band 6 sets up sheath 7.
The structure of the conductor 1 is as follows: the circular shape sinle silk periphery sets up compresses tightly the conductor, compresses tightly the conductor and comprises inlayer and skin, the inlayer by evenly cut apart into at least quartering, the skin by evenly cut apart into at least eight equal divisions, inlayer and outer every equal division are fan-shaped, the fan-shaped area of every equal division of inlayer is greater than the fan-shaped area of outer every equal division.
The fan-shaped filling strips 4 are made of high flame-retardant glass fibers.
The wrapping tape 5 adopts a high flame retardant glass cloth tape.
The steel belt 6 is a fluorophlogopite belt.
Claims (5)
1. A high flame-retardant medium-voltage power cable is composed of: the cable comprises a conductor (1), an insulating layer (2), a shielding copper strip (3), a sector filling strip (4), a wrapping tape (5), a steel strip (6), a sheath (7) and a separating strip (8); the method is characterized in that: conductor (1) periphery sets up shielding copper strips (3), sets up insulating layer (2) between shielding copper strips (3) and conductor (1), insulating layer (2) and shielding copper strips (3) constitute the cable core, set up dividing strip (8) of Y shape between the periphery of three cable cores that are isosceles triangle and distribute, dividing strip (8) of Y shape equally divide for three cable core and place the cavity, three cable cores are located respectively the three cable core place in the cavity, the periphery of dividing strip (8) sets up around band (5), is circular around the cross-section of band (5), places around the inner wall of band (5) and the periphery of cable core, cable core and fills fan-shaped filling strip (4) between the cavity, sets up steel band (6) around the periphery of band (5), and the periphery of steel band (6) sets up sheath (7).
2. A high flame retardant medium voltage power cable according to claim 1, characterized in that: the conductor (1) has the structure that: the circular shape sinle silk periphery sets up compresses tightly the conductor, compresses tightly the conductor and comprises inlayer and skin, the inlayer by evenly cut apart into at least quartering, the skin by evenly cut apart into at least eight equal divisions, inlayer and outer every equal division are fan-shaped, the fan-shaped area of every equal division of inlayer is greater than the fan-shaped area of outer every equal division.
3. A high flame retardant medium voltage power cable according to claim 1, characterized in that: the fan-shaped filling strips (4) are made of high-flame-retardant glass fibers.
4. A high flame retardant medium voltage power cable according to claim 1, characterized in that: the wrapping tape (5) adopts a high flame-retardant glass cloth tape.
5. A high flame retardant medium voltage power cable according to claim 1, characterized in that: the steel belt (6) is a fluorophlogopite belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920795234.8U CN209843354U (en) | 2019-05-28 | 2019-05-28 | High-flame-retardant medium-voltage power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920795234.8U CN209843354U (en) | 2019-05-28 | 2019-05-28 | High-flame-retardant medium-voltage power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209843354U true CN209843354U (en) | 2019-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920795234.8U Active CN209843354U (en) | 2019-05-28 | 2019-05-28 | High-flame-retardant medium-voltage power cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN209843354U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117854819A (en) * | 2024-03-07 | 2024-04-09 | 金太阳电缆有限公司 | High-flame-retardant environment-friendly cable |
-
2019
- 2019-05-28 CN CN201920795234.8U patent/CN209843354U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117854819A (en) * | 2024-03-07 | 2024-04-09 | 金太阳电缆有限公司 | High-flame-retardant environment-friendly cable |
| CN117854819B (en) * | 2024-03-07 | 2024-06-07 | 金太阳电缆有限公司 | High-flame-retardant environment-friendly cable |
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