CN205789233U - A kind of fire prevention branch cable with metal protection layer - Google Patents
A kind of fire prevention branch cable with metal protection layer Download PDFInfo
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- CN205789233U CN205789233U CN201620503075.6U CN201620503075U CN205789233U CN 205789233 U CN205789233 U CN 205789233U CN 201620503075 U CN201620503075 U CN 201620503075U CN 205789233 U CN205789233 U CN 205789233U
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Abstract
This utility model relates to a kind of fire prevention branch cable with metal protection layer, including leader cable and branch cable, the conductor of branch cable is linked together with the conductor of leader cable by bifurcation connector by crimping, and leader cable and branch cable are cased with leader cable metallic sheath and branch line metallic sheath respectively；Leader cable metallic sheath, branch line metallic sheath and sealing welding metal-back are welded together to form seal welding structure；It is filled with insulating barrier between welded seal metal-back and leader cable and branch cable；It is provided with overcoat outside welded seal metal-back.Advantage of the present utility model is embodied in: this cable branch cable has the advantages such as good fire protecting performance, high flame resistance and the feature of environmental protection.
Description
Technical field
This utility model relates to field of cables, is specifically related to a kind of fire prevention branch cable with metal protection layer.
Background technology
At present, along with socioeconomic development, electric wire consumption increases rapidly, requires to improve constantly to cable fire-proof.In GB50016-2005 Code for fire protection design of buildings, regulation fire-fighting back-up circuit cable must use the fireproof cable with metallic sheath.Because fire-fighting system requires the highest, domestic fire protection requirement is risen to 950 DEG C of flame combustions for 90 minutes 3 hours by 650 DEG C of flame combustions, increase cable consumption when therefore using distribution box structure and too increase operation risk, cable penetrating cable clamp cannot be applied in the fireproof cable with metallic sheath, and this utility model profit is solving this difficult problem.
Utility model content
The purpose of this utility model is for deficiency of the prior art, it is provided that a kind of fire prevention branch cable with metal protection layer.
For achieving the above object, the utility model discloses following technical scheme:
A kind of fire prevention branch cable with metal protection layer, including leader cable and branch cable, the conductor of branch cable is linked together with the conductor of leader cable by bifurcation connector by crimping, and leader cable and branch cable are cased with leader cable metallic sheath and branch line metallic sheath respectively；Leader cable metallic sheath, branch line metallic sheath and sealing welding metal-back are welded together to form seal welding structure；It is filled with insulating barrier between welded seal metal-back and leader cable and branch cable；It is provided with overcoat outside welded seal metal-back.
Further, described insulating barrier is refractory inorganic layer mineral.
Further, described overcoat is environmental protection high fire-retardance overcoat, is made up of the corrosion-resistant polyolefine material of the high fire-retardance of environment-friendly type.
Disclosed in this utility model, a kind of fire prevention branch cable with metal protection layer, has the advantages that
This cable branch cable has the advantages such as good fire protecting performance, high flame resistance and the feature of environmental protection, and described branch insulating barrier is inorganic mineral insulation material, has identical fire resistance rating with cable body insulation, can bear 950 DEG C, 3 hours flame combustions.Welded seal metal-back keeps the sealing good with leader cable and branch cable metal-coating and connectivity, it is ensured that inner insulation material integrity, prevents moisture from invading, and stops flame to enter.Outer jacket is made up of the corrosion-resistant polyolefine material of environmental protection high fire-retardance, can bear higher temperature, and will not produce harmful Substances Pollution environment in hot environment, so that its environmental-protecting performance is more excellent, meet the environmental protection concept that people are advocated now.
Accompanying drawing explanation
Fig. 1 is this utility model anatomical structure schematic diagram；
Fig. 2 is this utility model sectional view,
Wherein:
1. leader cable, 2. leader cable metallic sheath, 3. welded seal metal-back, 4. insulating barrier, 5. bifurcation connector, 6. branch line metallic sheath, 7. branch cable, 8. overcoat.
Detailed description of the invention
Below in conjunction with embodiment and referring to the drawings this utility model is further described.
Refer to Fig. 1-Fig. 2.
A kind of fire prevention branch cable with metal protection layer, including leader cable 1 and branch cable 7, the conductor of branch cable 7 is linked together with the conductor of leader cable 1, to keep good electric conductivity and tensile property by bifurcation connector 5 by crimping；Leader cable 1 and branch cable 7 are cased with leader cable metallic sheath 2 and branch line metallic sheath 6 respectively, leader cable metallic sheath 2, branch line metallic sheath 6 and sealing welding metal-back 3 are welded together to form seal welding structure, make this fireproof cable can bear 950 DEG C, 3 hours flame combustions, meet the regulation about fire-fighting system cable in GB50016-2015 Code for fire protection design of buildings, can effectively prevent extraneous moisture to the flame direct barbecue to insulating barrier when the erosion of mineral insulation and fire, under thermal-flame, still can keep good insulating properties；Welded seal metal-back 3 is the primary protection part of branch cable, it is welded together with leader cable metallic sheath 2 and branch line metallic sheath 6, both increased the mechanical strength of branch's head, and made again whole branch head be in sealing state, thereby ensure that branch's head and cable body have identical fire-protection rating；Insulating barrier 4 it is filled with between welded seal metal-back 3 and leader cable 1 and branch cable 7；Welded seal metal-back 3 is outside is provided with overcoat 8.
As specific embodiment, described insulating barrier 4 is refractory inorganic layer mineral.
As specific embodiment, described overcoat 8 is environmental protection high fire-retardance overcoat, it is made up of the corrosion-resistant polyolefine material of the high fire-retardance of environment-friendly type, higher temperature can be born, and harmful Substances Pollution environment will not be produced in hot environment, so that its environmental-protecting performance is more excellent, meet the environmental protection concept that people are advocated now.
The above is only preferred implementation of the present utility model, is not intended to limit；Should be understood that, although this utility model being described in detail with reference to the various embodiments described above, it will be understood by those within the art that, the technical scheme described in the various embodiments described above still can be modified by it, or the most some or all of technical characteristic is carried out equivalent；And these amendments and replacement, do not make the essence of corresponding technical scheme depart from the scope of this utility model each embodiment technical scheme.
Claims (3)
1. the fire prevention branch cable with metal protection layer, it is characterized in that, including leader cable and branch cable, the conductor of branch cable is linked together with the conductor of leader cable by bifurcation connector by crimping, and leader cable and branch cable are cased with leader cable metallic sheath and branch line metallic sheath respectively；Leader cable metallic sheath, branch line metallic sheath and sealing welding metal-back are welded together to form seal welding structure；It is filled with insulating barrier between welded seal metal-back and leader cable and branch cable；It is provided with overcoat outside welded seal metal-back.
A kind of fire prevention branch cable with metal protection layer the most according to claim 1, it is characterised in that described insulating barrier is refractory inorganic layer mineral.
A kind of fire prevention branch cable with metal protection layer the most according to claim 1, it is characterised in that described overcoat is environmental protection high fire-retardance overcoat, is made up of the corrosion-resistant polyolefine material of the high fire-retardance of environment-friendly type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620503075.6U CN205789233U (en) | 2016-05-30 | 2016-05-30 | A kind of fire prevention branch cable with metal protection layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620503075.6U CN205789233U (en) | 2016-05-30 | 2016-05-30 | A kind of fire prevention branch cable with metal protection layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205789233U true CN205789233U (en) | 2016-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201620503075.6U Active CN205789233U (en) | 2016-05-30 | 2016-05-30 | A kind of fire prevention branch cable with metal protection layer |
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| Country | Link |
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| CN (1) | CN205789233U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108288775A (en) * | 2017-01-09 | 2018-07-17 | 王维金 | Cable integrated connector and the device being integrated and connected for cable |
| CN113202809A (en) * | 2021-05-22 | 2021-08-03 | 中国计量大学 | Structure of totally-enclosed water pump capable of preventing liquid molecules from leaking out of pump |
| CN113236599A (en) * | 2021-05-22 | 2021-08-10 | 中国计量大学 | Chemical pump structure capable of preventing liquid molecules conveyed in pump from leaking and with lift determined by motor |
| CN113357186A (en) * | 2021-05-22 | 2021-09-07 | 中国计量大学 | Structure of totally enclosed type water pump |
-
2016
- 2016-05-30 CN CN201620503075.6U patent/CN205789233U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108288775A (en) * | 2017-01-09 | 2018-07-17 | 王维金 | Cable integrated connector and the device being integrated and connected for cable |
| CN113202809A (en) * | 2021-05-22 | 2021-08-03 | 中国计量大学 | Structure of totally-enclosed water pump capable of preventing liquid molecules from leaking out of pump |
| CN113236599A (en) * | 2021-05-22 | 2021-08-10 | 中国计量大学 | Chemical pump structure capable of preventing liquid molecules conveyed in pump from leaking and with lift determined by motor |
| CN113357186A (en) * | 2021-05-22 | 2021-09-07 | 中国计量大学 | Structure of totally enclosed type water pump |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20220302 Granted publication date: 20161207 |