CN202677951U - Double-core flame retardant shielding flexible cable - Google Patents
Double-core flame retardant shielding flexible cable Download PDFInfo
- Publication number
- CN202677951U CN202677951U CN 201220280169 CN201220280169U CN202677951U CN 202677951 U CN202677951 U CN 202677951U CN 201220280169 CN201220280169 CN 201220280169 CN 201220280169 U CN201220280169 U CN 201220280169U CN 202677951 U CN202677951 U CN 202677951U
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- CN
- China
- Prior art keywords
- copper
- polyvinyl chloride
- core flame
- coated
- shielding flexible
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a double-core flame retardant shielding flexible cable. The double-core flame retardant shielding flexible cable comprises two semi-circular copper conductors which are obtained through twisting a plurality of copper strand wires and pressing the twisted copper strand wires by a mould. A plurality of single copper wires are twisted to form the copper strand wires; a polyvinyl chloride layer which is adopted as an insulating layer is coated on the surfaces between the two semi-circular copper conductors and on the external surfaces of the two semi-circular copper conductors; one polyester tape is wrapped on the external surface of the polyvinyl chloride layer; a fiberglass tape is wrapped on the external surface of the polyester tape; a shielding layer braided by a plurality of bare copper wires is coated on the external surface of the fiberglass tape; a protective sheath layer is coated on the external surface of the shielding layer; the twisting pitch of the two semi-circular copper conductors is in a range of 350 mm to 450 mm; and the thickness of the polyvinyl chloride layer is in a range of 0.8 mm to 1 mm. The double-core flame retardant shielding flexible cable of the utility model has the advantages of favorable roundness, high flexibility and improved heat dissipation performance, and can facilitate the prevention of fire flame spreading in a fire disaster.
Description
Technical field
The utility model relates to a kind of power cable transmission field, is specifically related to a kind of two core flame-retardant shielding flexible cables.
Background technology
The performances such as the communication power supply flexible cable is a kind of power devices connecting line for communication machine rooms such as movement, telecommunications, Netcoms, and product requirement is soft, fire-retardant.To the attention of environmental protection, all trades and professions all require product to have the performance of environmental protection along with in the world.Two conventional core flexible cables extrude with round conductor mainly that polyvinyl chloride is stranded to be formed, and for guaranteeing the roundness of cable, the cable core domestic demand is added more filling member, cause the finished cable external diameter larger, poor radiation, cable laying take up room greatly, and the manufacturing cost of cable also increases.
Summary of the invention
The utility model purpose provides a kind of two core flame-retardant shielding flexible cables, and this two cores flame-retardant shielding flexible cable roundness is good, flexibility is good, heat dispersion is improved, and propagation of flame when being conducive to prevent fire.
For achieving the above object, the technical solution adopted in the utility model is: a kind of two core flame-retardant shielding flexible cables, comprise: two by several copper strand wires semicircle copper conductor stranded and that form through mould compacting, single copper wire is stranded forms by several for described copper strand wire, all be coated with as the polyvinyl chloride layer that insulate with outer surface between two semicircle copper conductors, one polyester belt is wrapped in described polyvinyl chloride layer outer surface, one glass tape is wrapped in described polyester belt outer surface, the screen that is formed by some bare copper wire braidings is coated on described glass tape outer surface, and a restrictive coating is coated on described screen outer surface; Described two semicircle copper conductor twisting pitch are 350 ~ 450mm; Described polyvinyl chloride layer thickness is 0.8 ~ 1mm.
It is as follows further to improve technical scheme in the technique scheme:
1, in the such scheme, the diameter of bare copper wire is 0.2mm in the described screen, and this screen count is at least 80%.
2, in the such scheme, described restrictive coating thickness is 1.1mm, and its eccentricity is no more than 20%.
3, in the such scheme, described polyvinyl chloride layer thickness is 0.9mm.
Because technique scheme is used, the utility model compared with prior art has following advantages and effect:
The utility model two core flame-retardant shielding flexible cables, its roundness is good, heat dispersion is improved, meet environmental requirement, need not add filler during stranding, and preferred semicircle copper conductor twisting pitch, the diameter of bare copper wire and count are conducive to further improve the electric property of product in the screen; Secondly, glass tape can be fire-retardant in this two cores flame-retardant shielding flexible cable, and propagation of flame when preventing fire also can be played the effect of tightening simultaneously, lay take up room little, even in the less communication power supply machine room in space, install also very convenient.
Description of drawings
Accompanying drawing 1 is the utility model two core flame-retardant shielding soft cable structure schematic diagrames.
In the above accompanying drawing: 1, copper strand wire; 2, semicircle copper conductor; 3, polyvinyl chloride layer; 4, polyester belt; 5, glass tape; 6, bare copper wire; 7, screen; 8, restrictive coating.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment: a kind of two core flame-retardant shielding flexible cables, comprise: two by several copper strand wire 1 semicircle copper conductors 2 stranded and that suppress to form through mould, single copper wire is stranded forms by several for described copper strand wire 1, all be coated with as the polyvinyl chloride layer 3 that insulate with outer surface between two semicircle copper conductors 2, one polyester belt 4 is wrapped in described polyvinyl chloride layer 3 outer surfaces, one glass tape 5 is wrapped in described polyester belt 4 outer surfaces, the screen 7 that is formed by some bare copper wire 6 braidings is coated on described glass tape 5 outer surfaces, and a restrictive coating 8 is coated on described screen 7 outer surfaces; Described two semicircle copper conductor 2 twisting pitch are 350 ~ 450mm; Described polyvinyl chloride layer 3 thickness are 0.8 ~ 1mm.
The diameter of bare copper wire 6 is 0.2mm in the above-mentioned screen 7, and these screen 7 counts are at least 80%.
Above-mentioned restrictive coating 8 thickness are 1.1mm, and its eccentricity is no more than 20%.
Above-mentioned polyvinyl chloride layer 3 thickness are 0.9mm.
When adopting above-mentioned two core flame-retardant shielding flexible cable, its roundness is good, flexibility is good, heat dispersion is improved, meet environmental requirement, need not add filler during stranding, and preferred semicircle copper conductor twisting pitch, the diameter of bare copper wire and count are conducive to further improve the electric property of product in the screen; Secondly, glass tape can be fire-retardant in this two cores flame-retardant shielding flexible cable, and propagation of flame when preventing fire also can be played the effect of tightening simultaneously, lay take up room little, even in the less communication power supply machine room in space, install also very convenient.
Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with technique can understand content of the present utility model and according to this enforcement, can not limit protection range of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, and all should be encompassed within the protection range of the present utility model.
Claims (4)
1. core flame-retardant shielding flexible cable, it is characterized in that: comprising: two by several copper strand wires (1) semicircle copper conductor (2) stranded and that form through mould compacting, single copper wire is stranded forms by several for described copper strand wire (1), all be coated with as the polyvinyl chloride layer (3) that insulate with outer surface between two semicircle copper conductors (2), one polyester belt (4) is wrapped in described polyvinyl chloride layer (3) outer surface, one glass tape (5) is wrapped in described polyester belt (4) outer surface, the screen (7) that is formed by some bare copper wires (6) braiding is coated on described glass tape (5) outer surface, and a restrictive coating (8) is coated on described screen (7) outer surface; Described two semicircle copper conductors (2) twisting pitch is 350 ~ 450mm; Described polyvinyl chloride layer (3) thickness is 0.8 ~ 1mm.
2. two core flame-retardant shielding flexible cables according to claim 1 is characterized in that: the diameter of bare copper wire (6) is 0.2mm in the described screen (7), and this screen (7) count is at least 80%.
3. two core flame-retardant shielding flexible cables according to claim 2, it is characterized in that: described restrictive coating (8) thickness is 1.1mm, and its eccentricity is no more than 20%.
4. two core flame-retardant shielding flexible cables according to claim 1, it is characterized in that: described polyvinyl chloride layer (3) thickness is 0.9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220280169 CN202677951U (en) | 2012-06-14 | 2012-06-14 | Double-core flame retardant shielding flexible cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220280169 CN202677951U (en) | 2012-06-14 | 2012-06-14 | Double-core flame retardant shielding flexible cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202677951U true CN202677951U (en) | 2013-01-16 |
Family
ID=47498837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220280169 Expired - Fee Related CN202677951U (en) | 2012-06-14 | 2012-06-14 | Double-core flame retardant shielding flexible cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202677951U (en) |
-
2012
- 2012-06-14 CN CN 201220280169 patent/CN202677951U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20130614 |