CN204558143U - A kind of essential safety circuit machine shielded type cable - Google Patents
A kind of essential safety circuit machine shielded type cable Download PDFInfo
- Publication number
- CN204558143U CN204558143U CN201520117817.7U CN201520117817U CN204558143U CN 204558143 U CN204558143 U CN 204558143U CN 201520117817 U CN201520117817 U CN 201520117817U CN 204558143 U CN204558143 U CN 204558143U
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- China
- Prior art keywords
- polyvinyl chloride
- insulation layer
- silver
- chloride insulation
- layers
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of essential safety circuit machine shielded type cable, it comprises two groups and controls cable core, two metal hoses, two drainage threads and five layers of external protection.Five layers of external protection are followed successively by polyvinyl chloride insulation layer, copper strip shielding layer, silver-gilt copper wire screen, nonmagnetic metal armour and low-smoke halogen-free polyolefin restrictive coating from inside to outside; two groups control cable core and are extruded in polyvinyl chloride insulation layer inside; often organize inside and extrude 22 silver-plated annealed Al-alloy conductors; inside, two groups of gaps controlled between cable core of polyvinyl chloride insulation layer extrude two metal hoses, extrude two silver plated nickel wire drainage threads between described polyvinyl chloride insulation layer and copper strip shielding layer.This kind of cable has excellent shielding properties, has the feature of low electric capacity, low inductance and strong interference immunity, and not flexible, is applicable to being applied to the fields such as Aero-Space.
Description
Technical field
The utility model belongs to field of cables, particularly relates to a kind of essential safety circuit machine shielded type cable.
Background technology
Cable has electric conductivity, be widely used in each different field, relating to people's lives, industrial production every field, so the consumption of cable is huge especially, is also important especially, also can be more and more higher to the requirement of quality, but in every field and each area, the quality purposes of cable is required it is different, as in fields such as space flight and aviation, cable is had to the requirement of low electric capacity, low inductance, could be durable in use, satisfy the demand.
Utility model content
In order to increase the practicality of prior art, the purpose of this utility model is to provide the essential safety circuit machine shielded type cable of strong, the low electric capacity of a kind of shielding properties, low inductance and strong interference immunity.
The utility model is taked following technical scheme to realize: a kind of essential safety circuit machine shielded type cable, it comprises two groups and controls cable core, two metal hoses, two drainage threads and five layers of external protection, five layers of external protection are followed successively by polyvinyl chloride insulation layer from inside to outside, copper strip shielding layer, silver-gilt copper wire screen, nonmagnetic metal armour and low-smoke halogen-free polyolefin restrictive coating, polyvinyl chloride insulation layer is set to the central core of cable, two groups control cable core and are extruded in polyvinyl chloride insulation layer inside, the often inner three layers of restrictive coating extruding 22 silver-plated annealed Al-alloy conductors and be wrapped in outside 22 silver-plated annealed Al-alloy conductors of group, three layers of restrictive coating are followed successively by zinc-plated nickel strap screen from inside to outside, layer of polyester fiber and perfluoroethylene-propylene insulating barrier, the inside of described polyvinyl chloride insulation layer, two groups of gaps controlled between cable core extrude two zinc-aluminium-alloy metal hoses, two silver plated nickel wire drainage threads are extruded between described polyvinyl chloride insulation layer and copper strip shielding layer.
The cross-sectional diameter length of described zinc-aluminium-alloy metal hose is 0.8 ㎜, and the cross-sectional diameter length of silver plated nickel wire drainage thread is 0.6 ㎜.
The utility model has following beneficial effect in sum: this kind of cable has excellent shielding properties, has the feature of low electric capacity, low inductance and strong interference immunity, and not flexible, is applicable to being applied to the fields such as Aero-Space.
Accompanying drawing explanation
Fig. 1 is the utility model cross-sectional structure schematic diagram.
Embodiment
As shown in Figure 1, a kind of essential safety circuit machine shielded type cable, it comprises two groups and controls cable core 1, two metal hoses, two drainage threads and five layers of external protection, five layers of external protection are followed successively by polyvinyl chloride insulation layer 4 from inside to outside, copper strip shielding layer 5, silver-gilt copper wire screen 6, nonmagnetic metal armour 7 and low-smoke halogen-free polyolefin restrictive coating 8, polyvinyl chloride insulation layer 4 is set to the central core of cable, two groups control cable core 1 and are extruded in polyvinyl chloride insulation layer 4 inside, the often inner three layers of restrictive coating extruding 22 silver-plated annealed Al-alloy conductors 11 and be wrapped in outside 22 silver-plated annealed Al-alloy conductors 11 of group, three layers of restrictive coating are followed successively by zinc-plated nickel strap screen 12 from inside to outside, layer of polyester fiber 13 and perfluoroethylene-propylene insulating barrier 14, the inside of described polyvinyl chloride insulation layer 4, two groups of gaps controlled between cable core 1 extrude two zinc-aluminium-alloy metal hoses 2, two silver plated nickel wire drainage threads 3 are extruded between described polyvinyl chloride insulation layer 4 and copper strip shielding layer 5.
Embodiment: the cross-sectional diameter length of described zinc-aluminium-alloy metal hose 2 is 0.8 ㎜, the cross-sectional diameter length of silver plated nickel wire drainage thread 3 is 0.6 ㎜.
Outer wrapping one deck copper strip shielding layer 5 of described polyvinyl chloride insulation layer 4, outer wrapping one deck silver-gilt copper wire screen 6 of described copper strip shielding layer 5, outer wrapping one deck nonmagnetic metal armour 7 of described silver-gilt copper wire screen 6, outer wrapping one deck low-smoke halogen-free polyolefin restrictive coating 8 of described nonmagnetic metal armour 7.
Further, outer wrapping one deck layer of polyester fiber 13 of described zinc-plated nickel strap screen 12, outer wrapping one deck perfluoroethylene-propylene insulating barrier 14 of described layer of polyester fiber 13.
This cable allows operational environment maximum temperature to be 95 DEG C, and the minimum temperature of mounting and installation is-20 DEG C; Can stand to exchange 50HZ, 3.5Kv/5min voltage and not breakdown; The shielding rejection coefficient of this cable is less than 0.7.
The above is the utility model embodiment, therefore all equivalences done according to structure, feature and the principle described in the utility model application range change or modify, and are included in the utility model patent claim.
Claims (2)
1. an essential safety circuit machine shielded type cable, it comprises two groups and controls cable core, two metal hoses, two drainage threads and five layers of external protection, it is characterized in that: five layers of external protection are followed successively by polyvinyl chloride insulation layer from inside to outside, copper strip shielding layer, silver-gilt copper wire screen, nonmagnetic metal armour and low-smoke halogen-free polyolefin restrictive coating, polyvinyl chloride insulation layer is set to the central core of cable, two groups control cable core and are extruded in polyvinyl chloride insulation layer inside, the often inner three layers of restrictive coating extruding 22 silver-plated annealed Al-alloy conductors and be wrapped in outside 22 silver-plated annealed Al-alloy conductors of group, three layers of restrictive coating are followed successively by zinc-plated nickel strap screen from inside to outside, layer of polyester fiber and perfluoroethylene-propylene insulating barrier, the inside of described polyvinyl chloride insulation layer, two groups of gaps controlled between cable core extrude two zinc-aluminium-alloy metal hoses, two silver plated nickel wire drainage threads are extruded between described polyvinyl chloride insulation layer and copper strip shielding layer.
2. essential safety circuit machine shielded type cable according to claim 1, is characterized in that: the cross-sectional diameter length of described zinc-aluminium-alloy metal hose is 0.8 ㎜, and the cross-sectional diameter length of silver plated nickel wire drainage thread is 0.6 ㎜.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520117817.7U CN204558143U (en) | 2015-02-27 | 2015-02-27 | A kind of essential safety circuit machine shielded type cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520117817.7U CN204558143U (en) | 2015-02-27 | 2015-02-27 | A kind of essential safety circuit machine shielded type cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204558143U true CN204558143U (en) | 2015-08-12 |
Family
ID=53833227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520117817.7U Expired - Fee Related CN204558143U (en) | 2015-02-27 | 2015-02-27 | A kind of essential safety circuit machine shielded type cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204558143U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104751986A (en) * | 2015-02-27 | 2015-07-01 | 安徽恒晶电缆集团有限公司 | Motor shielding cable for intrinsically safe circuit |
| CN105719735A (en) * | 2016-01-21 | 2016-06-29 | 安徽德源电缆集团有限公司 | Copper plastic aluminum band composite wrapping strip armored cable |
-
2015
- 2015-02-27 CN CN201520117817.7U patent/CN204558143U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104751986A (en) * | 2015-02-27 | 2015-07-01 | 安徽恒晶电缆集团有限公司 | Motor shielding cable for intrinsically safe circuit |
| CN105719735A (en) * | 2016-01-21 | 2016-06-29 | 安徽德源电缆集团有限公司 | Copper plastic aluminum band composite wrapping strip armored cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20160227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |