CN209912583U - BTLTZ fire resisting cable - Google Patents
BTLTZ fire resisting cable Download PDFInfo
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- CN209912583U CN209912583U CN201920263519.7U CN201920263519U CN209912583U CN 209912583 U CN209912583 U CN 209912583U CN 201920263519 U CN201920263519 U CN 201920263519U CN 209912583 U CN209912583 U CN 209912583U
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Abstract
A BTLTZ fire-resistant cable comprises a plurality of special-shaped wire cores, wherein a magnesium oxide filling layer is arranged between the special-shaped wire cores, an aluminum sheath is arranged outside the magnesium oxide filling layer, and an embossed copper sheath is arranged outside the aluminum sheath. The utility model provides a BTLTZ fire resisting cable, this cable carry out secondary embossing copper sheath again on make full use of aluminium sheath's the basis, can ensure that its fire-resistant effectual, fire-resistant temperature can reach 1050 between supplementarily 1250 ℃, normally circular telegram more than 3 hours when the conflagration breaing out, in addition, this structure, it requires lowly to insulate its production facility, and production speed is fast, and the stability of quality is high.
Description
Technical Field
The utility model relates to a fireproof cable technical field, especially a BTLTZ fire resisting cable.
Background
With the development of times and technological progress, the fire-resistant grade of the fireproof cable in the prior art can not meet the requirement of the development of the modernization process, for example, the requirement of multi-core long-length cables in high-rise, tunnel, airport and other places is increasing day by day, the places all require long fire-resistant time and higher fire-resistant temperature of the cable, and the cable is produced by the original drawing type, welding drawing type and other old processes, the length is limited, the production equipment is low, and under the condition, the comprehensive benefit is low, and social resources are wasted.
Disclosure of Invention
The utility model aims to solve the technical problem that a BTLTZ fire resisting cable is provided, the fire resisting temperature of cable can effectively be improved.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a BTLTZ fire-resistant cable comprises a plurality of special-shaped wire cores, wherein a magnesium oxide filling layer is arranged between the special-shaped wire cores, an aluminum sheath is arranged outside the magnesium oxide filling layer, and an embossed copper sheath is arranged outside the aluminum sheath.
Preferably, the special-shaped wire core comprises a circular wire core, a first fan-shaped wire core is arranged outside the circular wire core, and a second fan-shaped wire core is arranged outside the first fan-shaped wire core. By adopting the structure, the conductor is more compact, the cross-sectional area is small and the outer diameter is small under the condition of meeting the standard requirement of the conductor, so that the outer diameter of the whole cable is reduced.
Preferably, a wrapping layer is arranged between the magnesium oxide filling layer and the aluminum sheath.
Preferably, an outer sheath is arranged outside the embossed copper sheath.
Preferably, the wrapping layer is a mica wrapping tape.
The utility model provides a BTLTZ fire resisting cable, this cable carry out secondary embossing copper sheath again on make full use of aluminium sheath's the basis, can ensure that its fire-resistant effectual, fire-resistant temperature can reach 1050 between supplementarily 1250 ℃, normally circular telegram more than 3 hours when the conflagration breaing out, in addition, this structure, it requires lowly to insulate its production facility, and production speed is fast, and the stability of quality is high.
Drawings
The invention will be further explained with reference to the following figures and examples:
fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in fig. 1, the BTLTZ fire-resistant cable comprises a plurality of special-shaped wire cores, a magnesium oxide filling layer 1 is arranged between the special-shaped wire cores, an aluminum sheath 2 is arranged outside the magnesium oxide filling layer 1, and a corrugated copper sheath 3 is arranged outside the aluminum sheath 2.
Preferably, the special-shaped wire core comprises a circular wire core 4, a first fan-shaped wire core 5 is arranged outside the circular wire core 4, and a second fan-shaped wire core 6 is arranged outside the first fan-shaped wire core 5. By adopting the structure, the conductor is more compact, the cross-sectional area is small and the outer diameter is small under the condition of meeting the standard requirement of the conductor, so that the outer diameter of the whole cable is reduced.
Preferably, a wrapping layer 7 is arranged between the magnesium oxide filling layer 1 and the aluminum sheath 2.
Preferably, an outer sheath 8 is arranged outside the corrugated copper sheath 3.
The wrapping layer 7 is a mica wrapping tape.
The BTLTZ fire-resistant cable comprises a mineral insulated cable B, a special-shaped copper conductor T, an aluminum conductor L, a copper sheath T and a heavy load Z.
The cable is provided with the copper sheath with secondary embossing on the basis of fully utilizing the aluminum sheath, so that the cable is good in fire resistance effect, the fire resistance temperature can reach 1050-.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and should not be considered as limitations of the present invention, and the protection scope of the present invention should be defined by the technical solutions described in the claims, and includes equivalent alternatives of technical features in the technical solutions described in the claims. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.
Claims (3)
1. A BTLTZ fire resistant cable characterized by: the cable comprises a plurality of special-shaped cable cores, wherein a magnesium oxide filling layer (1) is arranged among the special-shaped cable cores, an aluminum sheath (2) is arranged outside the magnesium oxide filling layer (1), and an embossed copper sheath (3) is arranged outside the aluminum sheath (2);
the special-shaped wire cores comprise circular wire cores (4), first fan-shaped wire cores (5) are arranged outside the circular wire cores (4), and second fan-shaped wire cores (6) are arranged outside the first fan-shaped wire cores (5);
and a wrapping layer (7) is arranged between the magnesium oxide filling layer (1) and the aluminum sheath (2).
2. A BTLTZ fire resistant cable as claimed in claim 1, wherein: an outer sheath (8) is arranged outside the corrugated copper sheath (3).
3. A BTLTZ fire resistant cable as claimed in claim 1, wherein: the wrapping layer (7) is a mica wrapping tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920263519.7U CN209912583U (en) | 2019-03-01 | 2019-03-01 | BTLTZ fire resisting cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920263519.7U CN209912583U (en) | 2019-03-01 | 2019-03-01 | BTLTZ fire resisting cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209912583U true CN209912583U (en) | 2020-01-07 |
Family
ID=69031976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920263519.7U Active CN209912583U (en) | 2019-03-01 | 2019-03-01 | BTLTZ fire resisting cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209912583U (en) |
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2019
- 2019-03-01 CN CN201920263519.7U patent/CN209912583U/en active Active
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