CN216957501U - Low-smoke halogen-free flame-retardant fire-resistant branch cable - Google Patents
Low-smoke halogen-free flame-retardant fire-resistant branch cable Download PDFInfo
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- CN216957501U CN216957501U CN202220696910.8U CN202220696910U CN216957501U CN 216957501 U CN216957501 U CN 216957501U CN 202220696910 U CN202220696910 U CN 202220696910U CN 216957501 U CN216957501 U CN 216957501U
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- retardant
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 47
- 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 compound 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 title claims abstract description 41
- 239000000779 smoke Substances 0.000 title claims abstract description 19
- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 23
- 239000000945 filler Substances 0.000 claims abstract description 21
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000004576 sand Substances 0.000 claims abstract description 15
- 238000009413 insulation Methods 0.000 claims description 15
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 5
- 239000011810 insulating material Substances 0.000 claims description 4
- 238000009422 external insulation Methods 0.000 claims description 3
- 229910052736 halogen Inorganic materials 0.000 claims description 3
- 150000002367 halogens Chemical class 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 92
- 238000004880 explosion Methods 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229920000459 Nitrile rubber Polymers 0.000 description 3
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- -1 halogen-free Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- 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
Abstract
The utility model discloses a low-smoke halogen-free flame-retardant fire-resistant branch cable, and belongs to the field of cables. A low-smoke halogen-free flame-retardant fire-resistant branch cable comprises a wrapping layer, a filler, a copper core, an inner insulating layer and an outer insulating layer; the inner insulating layer wraps the copper core, the outer insulating layer is arranged on the outer end face of the inner insulating layer, and flame-retardant sand is filled between the outer insulating layer and the inner insulating layer and is a granular flame-retardant material; one or more outer insulating layers are arranged in the tightly packed layer, fillers are filled in the tightly packed layer, and two ends of the tightly packed layer are in a contact state. This scheme has set up automatic clamping device, and automatic clamping device can keep the clamp force of tight layer of package to the filler, has set up two-layer insulating layer simultaneously at the outer terminal surface of copper core to place between two-layer insulating layer and be equipped with fire-retardant sand, after the insulating layer is burnt through, fire-retardant sand can the automatic flow to the through-hole department, thereby prevents the further burning to the insulating layer.
Description
Technical Field
The utility model belongs to the field of cables, and particularly relates to a low-smoke halogen-free flame-retardant fire-resistant branch cable.
Background
When a common cable is burnt, the common cable can release a large amount of dense smoke and halogen acid gas, the halogen acid gas has corrosive harm to surrounding electrical equipment, and rescuers can put out a fire by approaching to the scene only by wearing a gas mask. Therefore, it is required to further improve flame retardancy, fire resistance, and safety and reliability of the electric wire and cable.
The flame retardant capability of a coating layer is generally improved in some existing flame retardant cables, but due to the coating arrangement, the flame retardant layer is not contacted with a combustion point to conduct flame retardance, so that a non-flame retardant flame-retardant material is easy to continuously combust, and the combustion of the non-flame-retardant material in the cable is difficult to prevent.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a low-smoke halogen-free flame-retardant fire-resistant branch cable which is provided with an automatic clamping device, wherein the automatic clamping device can keep the clamping force of a wrapping layer on a filler, meanwhile, two insulating layers are arranged on the outer end surface of a copper core, and flame-retardant sand is arranged between the two insulating layers, so that the flame-retardant capability is greatly improved.
The utility model relates to a low-smoke halogen-free flame-retardant fire-resistant branch cable which comprises a wrapping layer, a filler, a copper core, an inner insulating layer and an outer insulating layer;
the inner insulating layer wraps the copper core, the outer insulating layer is arranged on the outer end face of the inner insulating layer, and flame-retardant sand is filled between the outer insulating layer and the inner insulating layer and is a granular flame-retardant material;
the tight in situ of package is equipped with one or more external insulation layer, and the tight in situ of package is filled and is equipped with the filler, and the both ends on the tight layer of package are in contact state, and the tight layer top of package is equipped with automatic clamping device, and automatic clamping device presss from both sides the tight both ends on layer of package tightly, and automatic clamping device is used for keeping the tight power of package on layer tightly.
As a further improvement of the utility model, the automatic clamping device comprises a penetrating rod, the penetrating rod penetrates through two ends of the packing layer, a compression spring is fixedly arranged on the outer circular surface of the penetrating rod, one end of the compression spring is contacted with one end of the packing layer, and the two ends of the packing layer are always pushed to be close to each other and clamped through the elasticity of the compression spring, so that the clamping force on the filler is kept.
As a further improvement of the utility model, the outer circle surface of the tightening layer is wrapped with a heat insulation layer, the inner circle wall of the heat insulation layer is provided with a placing cavity, and the automatic clamping device is positioned in the placing cavity.
As a further improvement of the utility model, the heat insulation layer is made of heat insulation materials, and the heat insulation layer can be made of ceramic silicon rubber materials.
As a further improvement of the utility model, the outer circle surface of the heat insulation layer is wrapped with an explosion-proof layer, the explosion-proof layer is made of explosion-proof materials, and the explosion-proof layer can be made of low-smoke halogen-free polyurethane materials.
As a further improvement of the utility model, the outer circular surface of the explosion-proof layer is wrapped with a wear-resistant layer, the wear-resistant layer is made of wear-resistant materials, and the wear-resistant layer can be made of butadiene acrylonitrile rubber.
As a further improvement of the utility model, the inner insulating layer and the outer insulating layer are both made of insulating materials.
As a further improvement of the utility model, the filler is made of flame retardant material, and the filler can be made of alkali-free glass fiber material.
Compared with the prior art, the utility model has the advantages that: this scheme has set up automatic clamping device, and automatic clamping device can keep the clamp force of tight layer of package to the filler, has set up two-layer insulating layer simultaneously at the outer terminal surface of copper core to place between two-layer insulating layer and be equipped with fire-retardant sand, after the insulating layer is burnt through, fire-retardant sand can the automatic flow to the through-hole department, thereby prevents the further burning to the insulating layer, very big increase fire-retardant ability.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of the structure A in FIG. 1;
fig. 3 is a schematic structural view of a part of the present invention.
The reference numbers in the figures illustrate:
11. a wear layer; 12. an explosion-proof layer; 13. a thermal insulation layer; 14. a wrapping layer; 15. a filler; 16. a copper core; 17. an inner insulating layer; 18. flame-retardant sand; 19. an outer insulating layer; 20. a placement chamber; 21. penetrating the rod; 22. compressing the spring.
Detailed Description
The first embodiment is as follows: referring to fig. 1-3, a low smoke, halogen-free, flame retardant and fire resistant branch cable includes a wrapping layer 14, a filler 15, a copper core 16, an inner insulating layer 17 and an outer insulating layer 19;
the inner insulating layer 17 wraps the copper core 16, the outer insulating layer 19 is arranged on the outer end face of the inner insulating layer 17, flame-retardant sand 18 is filled between the outer insulating layer 19 and the inner insulating layer 17, and the flame-retardant sand 18 is a granular flame-retardant material;
be equipped with one or more external insulation layer 19 in the tight layer 14 of package, the intussuseption of tight layer 14 of package is equipped with filler 15, the both ends of tight layer 14 of package are in the contact state, the tight layer 14 top of package is equipped with automatic clamping device, automatic clamping device is tight layer 14's both ends clamp with the package, automatic clamping device is used for keeping the tight layer 14 of package's power of package, automatic clamping device is including running through pole 21, run through pole 21 and run through the both ends of tight layer 14 of package, the outer disc that runs through pole 21 is fixed and is equipped with pressure spring 22, pressure spring 22's one end and the one end contact of tight layer 14 of package, thereby it closes tightly to promote the both ends of tight layer 14 of package all the time to push up through pressure spring 22's elasticity, thereby keep the clamp force to filler 15.
The outer circle face of the packing layer 14 is wrapped with a heat insulation layer 13, a placing cavity 20 is formed in the inner circle wall of the heat insulation layer 13, and the automatic clamping device is located in the placing cavity 20.
The heat insulation layer 13 is made of heat insulation material, and the heat insulation layer 13 can be made of ceramic silicon rubber material.
The outer circle surface of the heat insulation layer 13 is wrapped with an explosion-proof layer 12, the explosion-proof layer 12 is made of explosion-proof materials, and the explosion-proof layer 12 can be made of low-smoke halogen-free polyurethane materials.
The outer circle surface of the explosion-proof layer 12 is wrapped with a wear-resistant layer 11, the wear-resistant layer 11 is made of wear-resistant materials, and the wear-resistant layer 11 can be made of butadiene acrylonitrile rubber.
The inner insulating layer 17 and the outer insulating layer 19 are made of insulating materials.
The filler 15 is made of a flame retardant material, and the filler 15 may be made of an alkali-free glass fiber material.
When the anti-explosion copper core is used specifically, when the copper core 16 is overheated to cause combustion, the inner insulating layer 17 is burnt to penetrate through, the flame-retardant sand 18 penetrates through the penetrating inner insulating layer 17 to be in contact with the copper core 16, so that continuous combustion of the copper core 16 is slowed down or prevented, after the flame-retardant sand 18 moves, a gap is formed in a space between the inner insulating layer 17 and the outer insulating layer 19, the compression spring 22 pushes two ends of the tightening layer 14 to clamp continuously, the outer insulating layer 19 is driven to be tightened by tightening the filler 15, the flame-retardant sand 18 is tightened continuously, air infiltration is prevented to intensify combustion, the filler 15 is made of alkali-free glass fiber materials, so that the anti-explosion copper core has a good flame-retardant effect, the inner insulating layer 17 and the outer insulating layer 19 are made of insulating materials, therefore, the insulating effect can be kept in a double-layer manner, and the anti-explosion layer 12 is made of halogen-free polyurethane materials, therefore, the anti-explosion wear-resistant rubber has a good anti-explosion effect, and meanwhile, the wear-resistant layer 11 on the outermost side is made of butadiene-acrylonitrile rubber, so that the anti-explosion wear-resistant rubber has a good wear-resistant effect and the service life of the whole body is prolonged.
Claims (8)
1. A fire-retardant fire-resistant branch cable of low smoke and zero halogen which characterized in that: comprises a wrapping layer (14), a filler (15), a copper core (16), an inner insulating layer (17) and an outer insulating layer (19);
the copper core (16) is wrapped by the inner insulating layer (17), the outer insulating layer (19) is arranged on the outer end face of the inner insulating layer (17), flame-retardant sand (18) is filled between the outer insulating layer (19) and the inner insulating layer (17), and the flame-retardant sand (18) is a granular flame-retardant material;
be equipped with one or more external insulation layer (19) in the tight layer (14) of package, the intussuseption of tight layer (14) of package is equipped with filler (15), and the both ends of tight layer (14) of package are in contact state, and the tight layer (14) top of package is equipped with automatic clamping device, and automatic clamping device presss from both sides the both ends of tight layer (14) of package tightly, and automatic clamping device is used for keeping the tight power of package of tight layer (14).
2. The low-smoke halogen-free flame-retardant fire-resistant branch cable according to claim 1, characterized in that: the automatic clamping device comprises a penetrating rod (21), the penetrating rod (21) penetrates through two ends of the tightly wrapped layer (14), a compression spring (22) is fixedly arranged on the outer circular surface of the penetrating rod (21), and one end of the compression spring (22) is in contact with one end of the tightly wrapped layer (14).
3. The low-smoke halogen-free flame-retardant fire-resistant branch cable according to claim 1, characterized in that: the outer circle face of the packing layer (14) is wrapped with a heat insulation layer (13), a placing cavity (20) is formed in the inner circle wall of the heat insulation layer (13), and the automatic clamping device is located in the placing cavity (20).
4. The low-smoke halogen-free flame-retardant fire-resistant branch cable according to claim 3, characterized in that: the heat insulation layer (13) is made of heat insulation materials.
5. The low-smoke halogen-free flame-retardant fire-resistant branch cable according to claim 3, characterized in that: the outer circle surface of the heat insulation layer (13) is wrapped with an explosion-proof layer (12), and the explosion-proof layer (12) is made of explosion-proof materials.
6. The low-smoke halogen-free flame-retardant fire-resistant branch cable according to claim 5, characterized in that: the outer circle surface of the explosion-proof layer (12) is wrapped with a wear-resistant layer (11), and the wear-resistant layer (11) is made of a wear-resistant material.
7. The low-smoke halogen-free flame-retardant fire-resistant branch cable according to claim 1, characterized in that: the inner insulating layer (17) and the outer insulating layer (19) are made of insulating materials.
8. The low-smoke halogen-free flame-retardant fire-resistant branch cable according to claim 1, characterized in that: the filler (15) is made of flame-retardant material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220696910.8U CN216957501U (en) | 2022-03-28 | 2022-03-28 | Low-smoke halogen-free flame-retardant fire-resistant branch cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220696910.8U CN216957501U (en) | 2022-03-28 | 2022-03-28 | Low-smoke halogen-free flame-retardant fire-resistant branch cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216957501U true CN216957501U (en) | 2022-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220696910.8U Active CN216957501U (en) | 2022-03-28 | 2022-03-28 | Low-smoke halogen-free flame-retardant fire-resistant branch cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216957501U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116453741A (en) * | 2023-02-11 | 2023-07-18 | 上进线缆有限公司 | Low-smoke halogen-free flame-retardant fire-resistant novel medium-voltage cable |
-
2022
- 2022-03-28 CN CN202220696910.8U patent/CN216957501U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116453741A (en) * | 2023-02-11 | 2023-07-18 | 上进线缆有限公司 | Low-smoke halogen-free flame-retardant fire-resistant novel medium-voltage cable |
| CN116453741B (en) * | 2023-02-11 | 2023-09-12 | 上进线缆有限公司 | Low-smoke halogen-free flame-retardant fire-resistant novel medium-voltage cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A low smoke, halogen-free, flame-retardant and fire-resistant branch cable Effective date of registration: 20231215 Granted publication date: 20220712 Pledgee: Zhejiang Tailong commercial bank Limited by Share Ltd. Quzhou green franchise branch Pledgor: ZHEJIANG QICHAO CABLE CO.,LTD. Registration number: Y2023980071558 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |