CN201117342Y - Halogen-free low smoke environment-friendly cable structure - Google Patents
Halogen-free low smoke environment-friendly cable structure Download PDFInfo
- Publication number
- CN201117342Y CN201117342Y CNU2007200973336U CN200720097333U CN201117342Y CN 201117342 Y CN201117342 Y CN 201117342Y CN U2007200973336 U CNU2007200973336 U CN U2007200973336U CN 200720097333 U CN200720097333 U CN 200720097333U CN 201117342 Y CN201117342 Y CN 201117342Y
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- cable
- low smoke
- zero halogen
- layer
- cable structure
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Abstract
The utility model provides a low smoke zero halogen environmental protection cable structure, comprising a tape armoring layer and a sheath layer. A lapping bedding course is arranged between the tape armoring layer and the sheath layer. The lapping bedding course is a longitudinal coating along the direction of cable length. The effects of the utility model are that the cable with a low smoke zero halogen environmental protection cable structure, not only can increase the spherical degree of the cable surface and decrease the tension at the joints of sheath material and the two tape armoring layers, but also can effectively absorb stress caused by the shrinking of the low smoke zero halogen polyolefin plastic, and therefore the cracking phenomenon of the large size low smoke zero halogen environmental protection cable sheath is effectively avoided, and the service property of the cable is improved. The utility mode can be widely used in electric power, metallurgy, rail transit, petrochemical industry, construction and so on.
Description
Technical field
The utility model relates to a kind of structure of cable, particularly a kind of low smoke, zero halogen environment-friendly cable structure.
Background technology
Along with continuous development and people's environmental consciousness of society strengthens gradually, a lot of industry fields are all selected the low smoke, zero halogen cable of environment-friendly type for use in the electric wire buying.This model cable has superior fire resistance, and particularly cable has advantages such as the burning fuming amount is little, smog toxicity is little when breaking out of fire.
Because the particularity of this model cable use occasion so the manufacturing of cable has the requirement of comparison strictness in the selection of material, all adopts the material of low smoke, zero halogen type.Owing to added a large amount of fillers in the prescription of low smoke, zero halogen material, as CaCO3, inorganic antismoke agent, contain the Al (OH) of the crystallization water
3, Mg (OH)
2And inorganic combustion inhibitor (Firebrake ZB, MoO
3, Al (OH)
3) wait auxiliary agent.And the adding of these fillers and auxiliary agent will certainly influence the performance of drawing abillity and environmental stress resistance.
The structure of above-mentioned big specification low smoke, zero halogen environment-friendly cable causes the existence of its sheath cracking problem to become the difficult problem of puzzlement in industry, also becomes the problem that the user relatively pays close attention to, and also is that of facing of cable industry is badly in need of the thorny problem that solves.
Summary of the invention
For solving the problem that exists in the above-mentioned technology, the utility model purpose provides a kind of low smoke, zero halogen environment-friendly cable structure, is beneficial to solve big specification low smoke, zero halogen environment friendly cable jacket cracking problem, to improve the serviceability of cable.
For achieving the above object, the technical solution adopted in the utility model provides a kind of low smoke, zero halogen environment-friendly cable structure, the cross section structure of this cable includes steel-tape armouring layer and restrictive coating, wherein: between described steel-tape armouring layer and restrictive coating, be provided with one deck band cushion, described band cushion is along described cable length direction integument longitudinally.
Effect of the present utility model is to use the cable of this low smoke, zero halogen environment-friendly cable structure not only can increase the cable surface roundness, reduce the tension force of protective cover material and two-layer steel-tape armouring layer junction, and can absorb the stress that causes because of the contraction of low smoke, zero halogen polyolefin plastics effectively, thereby avoided the cracking phenomena of big specification low smoke, zero halogen environment friendly cable jacket effectively, improved the serviceability of this cable.Can be widely used in electric power, metallurgy, track traffic, petrochemical industry, architectural engineering etc.
Description of drawings
Fig. 1 is a low smoke, zero halogen environment-friendly cable cross section structure schematic diagram of the present utility model.
Among the figure:
1, conductor 2, conductor shield 3, insulating barrier
4, insulation screen 5, metal screen layer 6, cable core belting layer
7, oxygen barrier layer 8, steel-tape armouring layer 9, band bed course
10, restrictive coating
Embodiment
Reaching embodiment in conjunction with the accompanying drawings is illustrated low smoke, zero halogen environment-friendly cable structure of the present utility model.
Novel low smoke, zero halogen environment-friendly cable, comprise conductor 1, conductor shield 2, insulating barrier 3, insulation screen 4, metal screen layer 5, cable core belting layer 6, oxygen barrier layer 7, steel-tape armouring layer 8 and restrictive coating 10, between steel-tape armouring layer 8 and restrictive coating 10, be provided with the band bed course 9 that vertically wraps up along described cable length direction, be beneficial to buffering, avoid the restrictive coating cracking.
As shown in Figure 1, the low cigarette environment-friendly cable structure of this halogen is before extruding low-smoke halogen-free flame-retardant sheath, between steel-tape armouring layer 8 and restrictive coating 10, increases one deck band bed course 9, and band bed course 9 is the band bed courses that vertically wrap up along described cable length direction.The material that band bed course 9 uses is non-absorbent material, comprising: nonwoven fabrics, fiberglass braided band, polyester belt and other synthetic materials.
Low smoke, zero halogen environment-friendly cable structure of the present utility model is achieved in that
Crosslinked polyetylene insulated polyolefin jacket steel-tape armouring LSOH anti-flaming category-A power cable, model is WDZA-YJY23-8.7/15kV 3 * 150mm2, its cross section structure is from inside to outside as follows successively:
With the band bed course 9 of the wrapped steel-tape armouring layer 8 in conductor 1, conductor shield 2, insulating barrier 3, insulation screen 4, metal screen layer 5, cable core belting layer 6, oxygen barrier layer 7, the double-deck gap of copper work, vertical parcel and the restrictive coating of making of polyolefine material 10.
Crosslinked polyetylene insulated polyolefin jacket just has been with armouring LSOH anti-flaming category-A power cable, and model is WDZA-YJY23-8.7/15kV 3 * 240mm2, and from inside to outside structure is as follows successively for its cross section structure:
With the band bed course 9 of the wrapped steel-tape armouring layer 8 in copper conductor 1, conductor shield 2, insulating barrier 3, insulation screen 4, metal screen layer 5, cable core belting layer 6, oxygen barrier layer 7, the double-deck gap of copper work, vertical parcel and the restrictive coating of making of polyolefine material 10.
The foregoing description all adopts following process equipment to finish:
1, adopt the low compression ratio screw extruder, compression ratio is between 1: 1～1: 2;
2, the mould apolegamy is suitable, and the draw ratio that guarantees material adopts half extrusion die in 1.5～2.0 scopes;
3, the cooling system of assurance equipment is good.
Claims (2)
1. low smoke, zero halogen environment-friendly cable structure, the cross section structure of this cable includes the steel-tape armouring layer (8) and the restrictive coating (10) of cable, it is characterized in that: between described steel-tape armouring layer (8) and restrictive coating (10), be provided with one deck band bed course (9), described band bed course (9) is along described cable length direction integument longitudinally.
2, low smoke, zero halogen environment-friendly cable structure according to claim 1 is characterized in that: described band bed course (9) is that the non-absorbent material of one of nonwoven fabrics, fiberglass braided band, polyester belt is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200973336U CN201117342Y (en) | 2007-09-04 | 2007-09-04 | Halogen-free low smoke environment-friendly cable structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200973336U CN201117342Y (en) | 2007-09-04 | 2007-09-04 | Halogen-free low smoke environment-friendly cable structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201117342Y true CN201117342Y (en) | 2008-09-17 |
Family
ID=39991920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200973336U Expired - Fee Related CN201117342Y (en) | 2007-09-04 | 2007-09-04 | Halogen-free low smoke environment-friendly cable structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201117342Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102903445A (en) * | 2012-09-25 | 2013-01-30 | 无锡市圣恩线缆有限公司 | Three-core power cable |
| CN103854724A (en) * | 2012-11-29 | 2014-06-11 | 陈下放 | Flame-retardant compression-resistant cable |
| CN103956212A (en) * | 2014-04-02 | 2014-07-30 | 昆明电缆集团股份有限公司 | Sheath low-retraction cable for rail transit |
| CN105405511A (en) * | 2015-12-07 | 2016-03-16 | 无锡裕德电缆科技有限公司 | 1500V and below DC traction biological destruction resistant power cable for rail transit |
| CN105405510A (en) * | 2015-12-07 | 2016-03-16 | 无锡裕德电缆科技有限公司 | Direct current traction anti-corrosion power cable for rail transit of 1,500V or less |
-
2007
- 2007-09-04 CN CNU2007200973336U patent/CN201117342Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102903445A (en) * | 2012-09-25 | 2013-01-30 | 无锡市圣恩线缆有限公司 | Three-core power cable |
| CN103854724A (en) * | 2012-11-29 | 2014-06-11 | 陈下放 | Flame-retardant compression-resistant cable |
| CN103956212A (en) * | 2014-04-02 | 2014-07-30 | 昆明电缆集团股份有限公司 | Sheath low-retraction cable for rail transit |
| CN105405511A (en) * | 2015-12-07 | 2016-03-16 | 无锡裕德电缆科技有限公司 | 1500V and below DC traction biological destruction resistant power cable for rail transit |
| CN105405510A (en) * | 2015-12-07 | 2016-03-16 | 无锡裕德电缆科技有限公司 | Direct current traction anti-corrosion power cable for rail transit of 1,500V or less |
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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: 20080917 Termination date: 20120904 |