CN212587249U - High-temperature-resistant special cable - Google Patents
High-temperature-resistant special cable Download PDFInfo
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- CN212587249U CN212587249U CN202021400909.3U CN202021400909U CN212587249U CN 212587249 U CN212587249 U CN 212587249U CN 202021400909 U CN202021400909 U CN 202021400909U CN 212587249 U CN212587249 U CN 212587249U
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- Prior art keywords
- cable
- layer
- resistant
- heat insulation
- mica tape
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- 239000010445 mica Substances 0.000 claims abstract description 31
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 31
- 238000009413 insulation Methods 0.000 claims abstract description 27
- 239000004020 conductor Substances 0.000 claims abstract description 22
- 239000000835 fiber Substances 0.000 claims abstract description 12
- 239000010425 asbestos Substances 0.000 claims abstract description 10
- 229910052895 riebeckite Inorganic materials 0.000 claims abstract description 10
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical group N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- 229910052802 copper Inorganic materials 0.000 claims description 11
- 239000010949 copper Substances 0.000 claims description 11
- 230000009970 fire resistant effect Effects 0.000 claims description 11
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 7
- 239000000395 magnesium oxide Substances 0.000 claims description 7
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 7
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 5
- 239000003063 flame retardant Substances 0.000 claims description 5
- 229920000098 polyolefin Polymers 0.000 claims description 5
- 229910000077 silane Inorganic materials 0.000 claims description 5
- 239000000779 smoke Substances 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000009954 braiding Methods 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 3
- 229910000039 hydrogen halide Inorganic materials 0.000 description 3
- 239000012433 hydrogen halide Substances 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
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Abstract
The utility model discloses a high temperature resistant special type cable relates to cable manufacturing technical field. The high-temperature-resistant special cable comprises an outer cable layer and an inner cable core, wherein the outer cable layer wraps the inner cable core, a heat insulation tile support is arranged in the outer cable layer, four grooves with uniform intervals are circumferentially arranged on the heat insulation tile support, and a support through hole is formed in the heat insulation tile support; the cable inner core comprises a main cable and four groups of auxiliary cables. The mica tape layer is arranged outside the conductor, so that the high temperature resistance and the combustion resistance are achieved, and the internally wrapped conductor is protected; the fiber braided layer is arranged on the outer side of the mica tape layer, so that the mica tape layer has a certain flame retardant function and also has a certain protection and support effect so as to enhance the tear strength of the mica tape layer; through setting up the asbestos tape, the asbestos tape has characteristics such as intensity height, corrosion-resistant and high temperature resistant, further strengthens the utility model discloses special cable's high temperature resistance.
Description
Technical Field
The utility model relates to a cable manufacturing technical field, concretely relates to high temperature resistant special type cable.
Background
A cable is a conductor made of one or more conductors insulated from each other and an outer insulating sheath that carries power or information from one location to another. The special cable is a cable with special characteristics in use occasions and technical performance indexes of products.
At present, with the continuous improvement of social security guarantee and system safety requirements, various corresponding performance requirements of special cables are increasing, and particularly the high temperature resistance of the cables. In the prior art, some special cables have poor high-temperature resistance and are easy to cause fire disasters and potential safety hazards. How to solve the technical problems is a technical problem to be solved in the technical field of cable manufacturing at present.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the embodiment of the utility model provides a high temperature resistant special type cable to solve the problem that proposes in the above-mentioned background art.
The utility model provides a following technical scheme: a high-temperature-resistant special cable comprises a cable outer layer and a cable inner core, wherein the cable outer layer wraps the cable inner core, a heat insulation tile support is arranged in the cable outer layer, four grooves with uniform intervals are circumferentially arranged on the heat insulation tile support, and a support through hole is formed in the heat insulation tile support; the cable inner core comprises a main cable and four groups of auxiliary cables, the main cable penetrates through the through hole of the support to be fixed with the heat insulation tile support, and the four groups of auxiliary cables are uniformly arranged in the groove of the heat insulation tile support at intervals;
the auxiliary cable comprises a conductor, a mica tape coated on the outer side of the conductor and a fiber braided layer coated on the outer side of the mica tape; the main cable and the auxiliary cable have the same structure; the outer layer of the cable sequentially comprises an asbestos tape, a copper strip and a sheath layer which are coated on the outer side of the inner core of the cable; and a magnesium oxide layer is filled between the outer layer of the cable and the inner core of the cable.
Preferably, the material of the sheath layer is silane type low-smoke halogen-free flame-retardant polyolefin.
Preferably, the conductor is solid core or twisted of copper, aluminum or aluminum alloy.
Preferably, the mica tape is a fire-resistant mica tape for fire-resistant cables.
Preferably, the fiber woven layer is formed by weaving glass fibers or carbon fibers.
Preferably, the heat insulation tile bracket is made of sand.
The embodiment of the utility model provides a pair of high temperature resistant special type cable has following beneficial effect:
(1) the mica tape layer is arranged outside the conductor, so that the high temperature resistance and the combustion resistance are achieved, and the internally wrapped conductor is protected;
(2) the fiber braided layer is arranged on the outer side of the mica tape layer, so that the mica tape layer has a certain flame retardant function and also has a certain protection and support effect so as to enhance the tear strength of the mica tape layer;
(3) a magnesium oxide layer is filled between the outer layer of the cable and the inner core of the cable, so that the high temperature resistance and the fireproof performance of the cable are further improved;
(4) by arranging the asbestos tape, the asbestos tape has the characteristics of high strength, corrosion resistance, high temperature resistance and the like, and the high temperature resistance of the special cable is further enhanced;
(5) by arranging the copper strip, the copper strip plays a role in grounding protection, and the high-voltage power cable is prevented from breaking through electric leakage to cause fire;
(6) the four groups of auxiliary cables are separated at intervals by the heat insulation tile bracket, and are separated from the main cable at the same time, so that the phenomenon that heat is transferred among the cables due to overhigh temperature of any one cable is prevented, and the cables are protected;
(7) the outermost side of the special cable is provided with a sheath layer which is a silane type low-smoke halogen-free flame-retardant polyolefin sheath and has the characteristics of insulation, high temperature resistance, no flame retardation and no generation of hydrogen halide gas.
Drawings
Fig. 1 is a schematic structural view of the high temperature resistant special cable of the present invention;
fig. 2 is a structural intention of the auxiliary cable in the present invention;
fig. 3 is the structural intention of the middle heat-insulating tile bracket of the utility model.
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 the skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, fig. 1 is a schematic structural diagram of the high temperature resistant special cable of the present invention; fig. 2 is a structural intention of the auxiliary cable in the present invention; fig. 3 is the structural intention of the middle heat-insulating tile bracket of the utility model.
A high-temperature-resistant special cable comprises an outer cable layer 100 and an inner cable core, wherein the inner cable core is wrapped by the outer cable layer 100, an insulating tile support 400 is arranged in the outer cable layer 100, four grooves 410 with uniform intervals are circumferentially arranged on the insulating tile support 400, and a support through hole 420 is formed in the insulating tile support; the cable core comprises a main cable 300 and four groups of auxiliary cables 200, the main cable 300 passes through a bracket through hole 420 to be fixed with the heat insulation tile bracket 400, and the four groups of auxiliary cables 200 are uniformly arranged in a groove 410 of the heat insulation tile bracket 400 at intervals;
the auxiliary cable 200 comprises a conductor 210, a mica tape 220 coated outside the conductor 210, and a fiber braid 230 coated outside the mica tape 220; the main cable 300 and the auxiliary cable 200 have the same structure; the cable outer layer 100 comprises an asbestos tape 110, a copper tape 120 and a sheath layer 130 which are coated outside the cable inner core in sequence; and a magnesium oxide layer 500 is filled between the outer layer 100 of the cable and the inner core of the cable.
It should be noted that the main cable 300 and the auxiliary cable 200 have the same structure, and the main cable 300 includes a conductor, a mica tape coated outside the conductor, and a fiber braid coated outside the mica tape.
The basic material of the heat insulation tile bracket 400 is sand which is made into very thin fiber, the volume of the heat insulation tile is 90 percent of air, the heat insulation tile bracket has good heat insulation, heat preservation and fire resistance effects due to the lowest heat conductivity coefficient of the air, can resist the high temperature of 1260 ℃ at most,
the heat insulation tile bracket 400 separates the four groups of auxiliary cables 200 and separates the auxiliary cables from the main cable 300, so that the phenomenon that any one of the cables is excessively hot and heat is transferred between the cables is prevented, and the cables are protected.
The mica tape 220 is a fire-resistant insulating material, has high temperature resistance and combustion resistance, and protects the conductor 210 wrapped inside; even if the conductor 210 is melted, the conductor 210 remains within the mica tape wrap for a period of time and can conduct current.
Preferably, the mica tape 220 is a fire-resistant mica tape for fire-resistant cables; the fire-resistant mica tape for fire-resistant cable is a high-performance mica insulating product, has excellent high-temperature resistance and combustion resistance, is suitable for main fire-resistant insulating layers in various fire-resistant cables, and basically has no volatilization of harmful smog when burning in open fire, so that the product is not only effective but also very safe when used for cables.
The fiber woven layer 230, preferably, the fiber woven layer 230 is woven by glass fiber or carbon fiber, which not only has a certain flame retardant function, but also has a certain protection and support function for enhancing the tear strength of the mica tape 220.
The asbestos tape 110 has the characteristics of high strength, corrosion resistance, high temperature resistance and the like, and the high temperature resistance of the special cable is further enhanced; and also has certain framework supporting function.
The copper strip 120 plays a role in ground protection, and prevents the high-voltage power cable from breaking down and leaking electricity to cause fire.
The sheath layer 130 is made of silane type low-smoke halogen-free flame-retardant polyolefin, has the characteristics of insulation, high temperature resistance, no delayed combustion and no generation of hydrogen halide gas, and most importantly, no toxic gas is generated during combustion, and no secondary damage is caused to a human body.
Fill magnesium oxide layer 500 between outer 100 of cable and the cable inner core, magnesium oxide layer 500 has good insulating properties, high temperature resistance and fire behavior, further improves the utility model discloses the high temperature resistance and the fire behavior of cable.
The conductor 210 is solid copper, aluminum or aluminum alloy core or twisted.
The embodiment of the utility model provides a pair of high temperature resistant special type cable has following beneficial effect: the mica tape layer is arranged outside the conductor, so that the high temperature resistance and the combustion resistance are achieved, and the internally wrapped conductor is protected; the fiber braided layer is arranged on the outer side of the mica tape layer, so that the mica tape layer has a certain flame retardant function and also has a certain protection and support effect so as to enhance the tear strength of the mica tape layer; a magnesium oxide layer is filled between the outer layer of the cable and the inner core of the cable, so that the high temperature resistance and the fireproof performance of the cable are further improved; by arranging the asbestos tape, the asbestos tape has the characteristics of high strength, corrosion resistance, high temperature resistance and the like, and the high temperature resistance of the special cable is further enhanced; by arranging the copper strip, the copper strip plays a role in grounding protection, and the high-voltage power cable is prevented from breaking through electric leakage to cause fire; the four groups of auxiliary cables are separated at intervals by the heat insulation tile bracket, and are separated from the main cable at the same time, so that the phenomenon that heat is transferred among the cables due to overhigh temperature of any one cable is prevented, and the cables are protected; the sheath layer is arranged on the outermost side of the special cable, is a silane type low-smoke halogen-free flame-retardant polyolefin sheath, and has the characteristics of insulation, high temperature resistance, no flame retardation and no generation of hydrogen halide gas.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In the present invention, unless otherwise explicitly specified or limited, the terms "mounting," "setting," "connecting," "fixing," "screwing" and the like are to be construed broadly, for example, as being either fixedly connected or detachably connected or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept, and all such alterations and modifications shall fall within the scope of the appended claims.
Claims (6)
1. The utility model provides a high temperature resistant special type cable, includes outer (100) of cable and cable inner core, including outer (100) of cable wraps up cable inner core, characterized by: a heat insulation tile support (400) is arranged in the cable outer layer (100), four grooves (410) with uniform intervals are circumferentially arranged on the heat insulation tile support (400), and a support through hole (420) is formed in the heat insulation tile support; the cable inner core comprises a main cable (300) and four groups of auxiliary cables (200), the main cable (300) penetrates through a support through hole (420) to be fixed with the heat insulation tile support (400), and the four groups of auxiliary cables (200) are uniformly arranged in a groove (410) of the heat insulation tile support (400) at intervals;
the auxiliary cable (200) comprises a conductor (210), a mica tape (220) coated on the outer side of the conductor (210), and a fiber braided layer (230) coated on the outer side of the mica tape (220); the main cable (300) and the auxiliary cable (200) have the same structure; the cable outer layer (100) sequentially comprises an asbestos tape (110), a copper tape (120) and a sheath layer (130) which are coated on the outer side of the cable inner core; and a magnesium oxide layer (500) is filled between the cable outer layer (100) and the cable inner core.
2. The special high-temperature-resistant cable as claimed in claim 1, wherein: the material of the sheath layer (130) is silane type low-smoke halogen-free flame-retardant polyolefin.
3. The special high-temperature-resistant cable as claimed in claim 1, wherein: the conductor (210) is formed by solid core or twisting of copper, aluminum or aluminum alloy.
4. The special high-temperature-resistant cable as claimed in claim 1, wherein: the mica tape (220) is a fire-resistant mica tape for a fire-resistant cable.
5. The special high-temperature-resistant cable as claimed in claim 1, wherein: the fiber braided layer (230) is formed by braiding glass fibers or carbon fibers.
6. The special high-temperature-resistant cable as claimed in claim 1, wherein: the heat insulation tile bracket (400) is made of sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021400909.3U CN212587249U (en) | 2020-07-16 | 2020-07-16 | High-temperature-resistant special cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021400909.3U CN212587249U (en) | 2020-07-16 | 2020-07-16 | High-temperature-resistant special cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212587249U true CN212587249U (en) | 2021-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021400909.3U Active CN212587249U (en) | 2020-07-16 | 2020-07-16 | High-temperature-resistant special cable |
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| CN (1) | CN212587249U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117612782A (en) * | 2023-11-24 | 2024-02-27 | 江苏致信电气科技有限公司 | A medium voltage fire-resistant control cable |
-
2020
- 2020-07-16 CN CN202021400909.3U patent/CN212587249U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117612782A (en) * | 2023-11-24 | 2024-02-27 | 江苏致信电气科技有限公司 | A medium voltage fire-resistant control cable |
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