CN201477924U - Smoke and halogen-free noncombustible instrument cable - Google Patents
Smoke and halogen-free noncombustible instrument cable Download PDFInfo
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- CN201477924U CN201477924U CN2009201725188U CN200920172518U CN201477924U CN 201477924 U CN201477924 U CN 201477924U CN 2009201725188 U CN2009201725188 U CN 2009201725188U CN 200920172518 U CN200920172518 U CN 200920172518U CN 201477924 U CN201477924 U CN 201477924U
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Abstract
The utility model discloses a smoke and halogen-free noncombustible instrument cable which comprises a conductor and an insulating layer extruded and enwrapped outside the conductor. A twisted pair group consists of two or three insulated conductor cores; an enwrapping layer is arranged outside the twisted pair group; a shielding layer is arranged outside the enwrapping layer; the shielded twisted pair group is stranded into a cable; when the cable is formed, a filler is filled in a gap between the twisted pair group in a cable core; an entire enwrapping layer is arranged outside the cable core; an entire shielding layer is arranged outside the entire enwrapping layer; an isolating layer is arranged outside the entire shielding layer; and a stainless steel jacket is arranged on the outermost layer. Because the outer protection layer of the cable adopts the stainless steel jacket, the cable can not combust under the condition that the flame temperature reaches 750-100 DEG C and simultaneously can not cause adverse impact on environmental protection under the fire condition, namely smoke and halogen-free gas is released. Therefore, the utility model also relates to a novel environment-friendly instrument cable. The service life of the instrument cable can reach above 80. The utility model can be used as waterproof cables, rodent resistant cables and termite proof cables.
Description
Technical field:
The utility model relates to a kind of smokeless Halogen fire-retardant type instrument cable, belongs to technical field of electric wires and cables.
Background technology:
In cable industry, what be widely used at present is low-smoke halogen-free inflaming-retarding cable substantially, and to the characteristic requirement of cable low-smoke non-halogen flame-retardant is:
1, low smoke performance requires: minimum light transmittance 〉=60%;
2, Halogen performance requirement: pH value 〉=4.3, conductivity≤10 μ S/mm;
3, the bunchy fire resistance requires:
Category-A: comburant volume: 7L/m, for fire time: 40min, qualified index: the length of charing the most very much not should stop should not surpassing 1h for the flaming combustion time on the sample of fire back above the 2.5m that makes progress apart from the nozzle base on the sample;
Category-B: comburant volume: 3.5L/m, for fire time: 40min, qualified index: the length of charing the most very much not should stop should not surpassing 1h for the flaming combustion time on the sample of fire back above the 2.5m that makes progress apart from the nozzle base on the sample; The C class: comburant volume: 1.5L/m, for fire time: 20min, qualified index: the length of charing the most very much not should stop should not surpassing 1h for the flaming combustion time on the sample of fire back above the 2.5m that makes progress apart from the nozzle base on the sample; The insulation of low-smoke halogen-free inflaming-retarding cable at present adopts low-smoke halogen-free polyolefin to insulate substantially, and sheath adopts low-smoke and halogen-free flame retardant polyolefin jacket, the outer single or many bundle strands formation of conductor; And above-mentioned all kinds of cable all is difficult to reach the performance requirement that smokeless Halogen does not fire in particular for the cable of all kinds of instrument appliances.
Summary of the invention:
For overcoming the defective of prior art; the purpose of this utility model is to provide a kind of smokeless Halogen fire-retardant type instrument cable that is applicable to all kinds of instrument appliances; be the new generation product that substitutes the low-smoke halogen-free flame retardant instrument cable, cost is suitable, and electric fireproof safety and environmental protection effect are better.
The utility model technical solution problem adopts following technical scheme:
Smokeless Halogen fire-retardant type instrument cable, comprise conductor and the insulating barrier that extrudes outside conductor, adopt two or three to thoroughly do away with edge core pair twist formation pair twist group, outside the pair twist group, lapping layer is arranged, screen is arranged outside lapping layer, by the stranded stranding of shielding pair twist group, packing in the space between the pair twist group in cable core has total lapping layer during stranding outside cable core, and total lapping layer is outward total screen, outside total screen is separator, and the outermost layer of cable adopts stainless steel sheath.
Described conductor adopts and meets the 1st kind or the 2nd kind or the 5th kind of conductor structure stipulating among the GB/T3956.
Described insulating barrier adopts polyethylene or Halogen materials such as crosslinked polyethylene or cross-linking radiation polyolefin insulation material to extrude and forms.
Described separator adopts high temperature resistance non halogen material band to form for wrapped two layers.
Described stainless steel sheath adopts the vertical bag welding of stainless steel band, and forms through the embossing processing.
The outer wrapped Halogen material band of described pair twist group forms lapping layer, outside pair twist group lapping layer with soft copper band or compound copper-plastics band or the wrapped shielding of aluminium-plastic tape adopt soft circular copper wire or zinc-plated circular copper wire braid shielded as pair twist set of shield layer.
At described total lapping layer is to adopt two layers of wrapped forming of polyester belt, and total lapping layer adopts the wrapped shielding of soft copper band or compound copper-plastics band or aluminium-plastic tape outward again or adopts soft circular copper wire or total screen of zinc-plated circular copper wire braid shielded conduct.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
(1) be that the vertical bag of stainless steel band is welded because of outer jacket of the present utility model, stainless melting temperature is 1772 ℃, therefore, protective coverings of cable is under 750 ℃～1000 ℃ conditions in flame temperature, can not burn, insulation, filling and the band material of cable the inside are isolated by outer jacket again, do not contact with air, cable itself can't form the condition of burning, so also can not produce dieseling because of aging, overload or short circuit.Having eliminated the fire disaster that causes because of the cable spontaneous combustion, is surprising and the fire that cable causes causes direct or indirect economic loss in China.
(2) because the utility model cable has smokelessly, Halogen and the characteristic of not firing, the secondary disaster of cable under the fire condition also just thoroughly eliminated, and can not cause any negative effect to environmental protection, is environment-friendly cable worthy of the name.
(3) the utility model cable long service life.Because stainless steel outer jacket corrosion resistance is strong, the material and the air of cable the inside are isolated again, and the ageing process of insulation and other material delays greatly, and can reach 80～100 years the useful life of cable as calculated.
(4) because protective coverings of cable has adopted vertical bag welding embossing technology, still fire prevention, antiseptic property are good, water resistance might as well, can be used as submerged cable and use; Protection against rodents and termite-proof performance can be used as protection against rodents and termite-proof cable.
(5) because the stainless steel outer jacket has adopted vertical bag welding embossing PROCESS FOR TREATMENT, the bending radius of the utility model cable is identical with common cable, also do not need poling when installation is laid, the stainless steel outer jacket also can be used as armour and uses, and has saved the plastic sheath material of armoring material and cable.
Description of drawings:
Fig. 1 is the structural representation of the utility model cable.
Number in the figure: 1 conductor, 2 insulating barriers, 3 lapping layers, 4 fillers, 5 separators, 6 sheaths, 7 screens, 8 total lapping layers, 9 total screens.
Below pass through embodiment, and the utility model is described in further detail in conjunction with the accompanying drawings.
Embodiment, non-limiting examples is as described below:
Embodiment: shown in Figure 1, smokeless Halogen fire-retardant type instrument cable, comprise conductor 1 and the insulating barrier 2 formed insulated wire cores that extrude outside conductor, adopt two or three to thoroughly do away with edge core pair twist formation pair twist group, lapped insulation type Halogen material band forms pair twist group lapping layer 3 outside the pair twist group, screen 7 is arranged outside lapping layer, by two pairs of stranded strandings of pair twist group with screen, form cable conductor, fill the high temperature resistant inorganic material in space during stranded stranding between the pair twist group of cable core and form filler 4, wrapped again two layers of high temperature resistance polyester band form total lapping layer 8 outside cable core, total lapping layer is outward total screen 9, outside total screen is separator 5, and the outermost layer of cable adopts stainless steel sheath 6.
In concrete the enforcement, conductor 1 adopts and meets the 1st kind or the 2nd kind or the 5th kind of conductor structure stipulating among the GB/T3956, adopts seven stranded forming of zinc-plated circular copper wire.
Insulating barrier 2 adopts polyethylene or Halogen materials such as crosslinked polyethylene or cross-linking radiation polyolefin insulation material to extrude and forms.
The outer wrapped Halogen material band of pair twist group forms lapping layer 3, outside pair twist group lapping layer with soft copper band or compound copper-plastics band or the wrapped shielding of aluminium-plastic tape adopt soft circular copper wire or zinc-plated circular copper wire braid shielded as pair twist set of shield layer 7.
Described total lapping layer 8 is to adopt two layers of wrapped forming of polyester belt, and total lapping layer adopts the wrapped shielding of soft copper band or compound copper-plastics band or aluminium-plastic tape outward again or adopts soft circular copper wire or total screen 9 of zinc-plated circular copper wire braid shielded conduct.
Every technical performance index of the utility model cable:
2.1 rated voltage: 300/500V.
2.2 the highest for a long time permission working temperature of cable has: 70 ℃, 90 ℃, 125 ℃, 150 ℃, 200 ℃ and 250 ℃ six kinds.
2.3 minimum bending radius: be not less than 10 times of the outside diameter of cable.
2.4 conductor resistance meets 3956 regulation in the time of 20 ℃.
2.5 manufacture test voltage: 2000V/1min.
2.6 insulation resistance: WJ1 insulation is not less than 25M Ω/km in the time of 20 ℃, PE, XLPE, F insulation are not less than 5000M Ω/km in the time of 20 ℃.
2.7 there is not smoke performance: light transmittance 100%.
2.8 Halogen performance: pH value 〉=4.3, conductivity≤10 μ S/mm.
2.9 noninflammability energy: cable is under 750 ℃ flame temperature, and for fiery 40min, cable does not burn, and cable surface does not have burnt trace, stops also not have flame on the cable for behind the fire.
2.10 shielding properties: shielding rejection coefficient≤0.05%.
Claims (6)
1. smokeless Halogen fire-retardant type instrument cable, it is characterized in that comprising conductor (1) and extrude insulating barrier (2) outside conductor, adopt two or three to thoroughly do away with edge core pair twist formation pair twist group, lapping layer (3) is arranged outside the pair twist group, screen (7) is arranged outside lapping layer, by the stranded stranding of shielding pair twist group, packing in the space between the pair twist group (4) in cable core during stranding, total lapping layer (8) is arranged outside cable core, total lapping layer is outward total screen (9), outside total screen is separator (5), and the outermost layer of cable adopts stainless steel sheath (6).
2. smokeless Halogen fire-retardant type instrument cable according to claim 1 is characterized in that, described conductor (1) adopts and meets the 1st kind or the 2nd kind or the 5th kind of conductor structure stipulating among the GB/T3956.
3. smokeless Halogen fire-retardant type instrument cable according to claim 1 is characterized in that, described insulating barrier (2) adopts polyethylene or Halogen materials such as crosslinked polyethylene or cross-linking radiation polyolefin insulation material to extrude and forms.
4. smokeless Halogen fire-retardant type instrument cable according to claim 1 is characterized in that, described separator (5) adopts high temperature resistance non halogen material band to form for wrapped two layers.
5. smokeless Halogen fire-retardant type instrument cable according to claim 1, it is characterized in that, the outer wrapped Halogen material band of described pair twist group forms lapping layer (3), outside pair twist group lapping layer with soft copper band or compound copper-plastics band or the wrapped shielding of aluminium-plastic tape adopt soft circular copper wire or zinc-plated circular copper wire braid shielded as pair twist set of shield layer (7).
6. smokeless Halogen fire-retardant type instrument cable according to claim 1 and 2, it is characterized in that, at described total lapping layer (8) is to adopt two layers of wrapped forming of polyester belt, and total lapping layer adopts the wrapped shielding of soft copper band or compound copper-plastics band or aluminium-plastic tape outward again or adopts soft circular copper wire or total screen of zinc-plated circular copper wire braid shielded conduct (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201725188U CN201477924U (en) | 2009-06-11 | 2009-06-11 | Smoke and halogen-free noncombustible instrument cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201725188U CN201477924U (en) | 2009-06-11 | 2009-06-11 | Smoke and halogen-free noncombustible instrument cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201477924U true CN201477924U (en) | 2010-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201725188U Expired - Fee Related CN201477924U (en) | 2009-06-11 | 2009-06-11 | Smoke and halogen-free noncombustible instrument cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201477924U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903707A (en) * | 2014-04-17 | 2014-07-02 | 安徽华能电缆集团有限公司 | Free-movement-fatigue-bending-resistant anti-interference control cable for polar region oil wells |
| CN104751980A (en) * | 2015-03-30 | 2015-07-01 | 安徽华能电缆集团有限公司 | High-voltage shore power cable |
| CN107633917A (en) * | 2017-08-25 | 2018-01-26 | 安徽华能电缆集团有限公司 | A kind of anti-explosion computer and instrument cable |
| CN108039242A (en) * | 2018-01-24 | 2018-05-15 | 苏州专创光电科技有限公司 | A kind of Separated-screening comprehensive control cable |
-
2009
- 2009-06-11 CN CN2009201725188U patent/CN201477924U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903707A (en) * | 2014-04-17 | 2014-07-02 | 安徽华能电缆集团有限公司 | Free-movement-fatigue-bending-resistant anti-interference control cable for polar region oil wells |
| CN104751980A (en) * | 2015-03-30 | 2015-07-01 | 安徽华能电缆集团有限公司 | High-voltage shore power cable |
| CN107633917A (en) * | 2017-08-25 | 2018-01-26 | 安徽华能电缆集团有限公司 | A kind of anti-explosion computer and instrument cable |
| CN108039242A (en) * | 2018-01-24 | 2018-05-15 | 苏州专创光电科技有限公司 | A kind of Separated-screening comprehensive control 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: 20100519 Termination date: 20150611 |
|
| EXPY | Termination of patent right or utility model |