CN202307283U - Steel-tape armouring low-smoke halogen-free flame retardant insulation and sheathing power cable for coal mine - Google Patents
Steel-tape armouring low-smoke halogen-free flame retardant insulation and sheathing power cable for coal mine Download PDFInfo
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- CN202307283U CN202307283U CN2011204685245U CN201120468524U CN202307283U CN 202307283 U CN202307283 U CN 202307283U CN 2011204685245 U CN2011204685245 U CN 2011204685245U CN 201120468524 U CN201120468524 U CN 201120468524U CN 202307283 U CN202307283 U CN 202307283U
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Abstract
The utility model discloses a steel-tape armouring low-smoke halogen-free flame retardant insulation and sheathing power cable for a coal mine, relating to the field of power cables. The utility model solves the problems of difficulty to adapting downhole safety production and environment protection requirements and the like of the traditional power cable for a coal mine. The steel-tape armouring low-smoke halogen-free flame retardant insulation and sheathing power cable is a halogen-free low-smoke flame retardant polyolefin outer sheath, a cable core of which comprises three leads, four leads or three leads and an earth lead; and a lapping tape, a halogen-free low-smoke flame retardant polyolefin inner sheath, a dual-steel tape armouring layer and the halogen-free low-smoke flame retardant polyolefin outer sheath are sequentially wrapped on the periphery of the cable cores from inside to outside. The steel-tape armouring low-smoke halogen-free flame retardant insulation and sheathing power cable for the coal mine, provided by the utility model has the advantages of corrosion resistance, long service life, easy processing and low cost, accords with the mine downhole safety production standard and accords with the environment protection requirement.
Description
Technical field
The utility model relates to a kind of power cable, particularly relates to a kind of colliery with insulation of steel-tape armouring LSOH anti-flaming and sheath power cable.
Background technology
At present, along with coal mine machineryization, automaticity improve constantly, the supply of electric power technology has very important meaning in Coal Production.Because subsurface environment is special; Possibly run into the power cable that uses than the place of great machinery external impacts under the coal mine mainly is made up of cable core and polyvinyl chloride oversheath that polyvinyl chloride wire constitutes; Because though polyvinyl chloride insulation and polyvinyl chloride oversheath have certain anti-flammability; In case catch fire; The polyvinyl chloride oversheath very easily burns and can produce a large amount of hydrogen chloride toxic gases and the people is suffocated and dies, and the acid mist that hydrogen chloride forms has extremely strong corrosivity to instrument, equipment and people's skin, produces a large amount of black smokes simultaneously and makes the people in narrow and small tunnel, down-hole, can't find the passage of escape; Therefore environment is also polluted, and existing oversheath is that the colliery of polyvinyl chloride is difficult to adapt to the requirement that downhole safety is produced with power cable.
The utility model content
The purpose of the utility model is in order to overcome deficiency of the prior art, to provide a kind of colliery that meets the coal mine downhole safety production requirement with insulation of steel-tape armouring LSOH anti-flaming and sheath power cable.
For realizing above-mentioned purpose; The utility model provides a kind of colliery with insulation of steel-tape armouring LSOH anti-flaming and sheath power cable; Comprise lead and cable core oversheath; Said lead comprises the conductor in insulating barrier and the insulating barrier, and said cable core comprises some leads, and said insulating barrier is the halogen-free and low-smoke flame-retardant polyolefin insulating barrier; Said cable core oversheath is the halogen-free and low-smoke flame-retardant polyolefin oversheath, and the periphery of said cable core is coated with twining package tape, halogen-free and low-smoke flame-retardant polyolefin sheath, double-tape armor layer, halogen-free and low-smoke flame-retardant polyolefin oversheath from the inside to the outside successively.
Said cable core is that three leads, four leads or three leads add a ground wire composition.
Said halogen-free and low-smoke flame-retardant polyolefin insulating barrier is the LSOH anti-flaming polyethylene layer; Said halogen-free and low-smoke flame-retardant polyolefin sheath is the LSOH anti-flaming polythene inner, and said halogen-free and low-smoke flame-retardant polyolefin oversheath is a LSOH anti-flaming polyethylene oversheath.
Said twining package tape is the glass cloth twining package tape.
The utility model beneficial effect is: the colliery of the utility model mainly utilizes the characteristic of the not halogen-containing and heavy metals such as other is plumbous, cadmium, chromium, mercury of halogen-free and low-smoke flame-retardant polyolefin material with the oversheath of steel-tape armouring LSOH anti-flaming insulation and sheath power cable cable core; Even toxic smog such as hydrogen halides can not taken place by burning yet; Also non-corrosiveness gas release, the smog that is produced is also seldom; And this fire proofing runs into and can produce metal oxide and steam when naked light burning attacks; Metal oxide and steam have oxygen barrier, heat-absorbing action on the surface of cable core; So purpose that can effectively stop flame to burn away; Therefore even burn with insulation of steel-tape armouring LSOH anti-flaming and sheath power cable quilt or also entail dangers to personal safety and cause secondary to endanger not when being attacked by naked light in the colliery of the utility model when fire takes place, and compliance with environmental protection requirements.Simultaneously the power cable of the utility model is corrosion-resistant, the life-span long, be prone to processing and cost low.
Be described further with insulation of steel-tape armouring LSOH anti-flaming and sheath power cable below in conjunction with the colliery of accompanying drawing the utility model.
Description of drawings
Fig. 1 is the power cable cross section structure sketch map of the utility model;
Fig. 2 is the embodiment two power cable cross section structure sketch mapes of the utility model;
Fig. 3 is the embodiment three power cable cross section structure sketch mapes of the utility model.
Among the figure: 1, conductor, 2, the LSOH anti-flaming polyethylene layer, 3, the glass cloth twining package tape, 4, the LSOH anti-flaming polythene inner, 5, the double-tape armor layer, 6, LSOH anti-flaming polyethylene oversheath, 7, the cable core gap.
Embodiment
Embodiment one is as shown in Figure 1, and the present embodiment electric-cable core is that three leads are formed, and the appearance of the conductor 1 of lead extrudes the LSOH anti-flaming polythene material as insulating barrier 2, and the filler in cable core gap 7 is a glass cord.Wrapped successively from inside to outside glass cloth twining package tape 3, LSOH anti-flaming polythene inner 4, double-tape armor layer 5, LSOH anti-flaming polyethylene oversheath 6 on the cable core of stranding.
Embodiment two is as shown in Figure 2, and the present embodiment electric-cable core is that four leads are formed, and other setting of present embodiment and embodiment are together.
Embodiment three is as shown in Figure 3, and the present embodiment electric-cable core is that three leads add a ground wire composition, and other setting of present embodiment and embodiment are together.
The colliery of the utility model is with the production technology of steel-tape armouring LSOH anti-flaming insulation and sheath power cable: copper conductor 1 is extruded LSOH anti-flaming polyethylene layer 2, do not have the gap between copper conductor 1 and the LSOH anti-flaming polyethylene layer 2; Adopt power frequency spark equipment, accomplish dried the having a try of spark of cable insulation core and test; With conductor wire core and glass cord inserts on stranding equipment together layer-stranding become cable core; By stranding equipment wrapped successively glass cloth twining package tape 3 outside cable core; Extrude LSOH anti-flaming polythene inner 4 by extrusion equipment, by steel-tape armouring equipment armouring double-tape armor layer 5; Adopt extrusion equipment to extrude LSOH anti-flaming polyethylene oversheath 6, do not have the gap between 6 layers of glass cloth twining package tape 3, LSOH anti-flaming polythene inner 4, double-tape armor layer 5 and the LSOH anti-flaming polyethylene oversheaths.
Some have been added like inorganic combustion inhibitors such as aluminium hydroxide, magnesium hydroxide, boric acid in the LSOH anti-flaming polythene material of the colliery of the utility model with the oversheath of insulation of steel-tape armouring LSOH anti-flaming and sheath power cable; When flame attacks cable; This sheath can resolve into metal oxide and separate out the crystallization water; Metal oxide can be isolated airborne oxygen and cable core effectively; The crystallization water that discharges also can absorb great amount of heat in the air, thereby reaches certain fire-retardant purpose.Simultaneously, even the characteristic of not halogen-containing and heavy metals such as other is plumbous, cadmium, chromium, mercury in the sheath material of power cable is also not entail dangers to personal safety and cause secondary to endanger, also compliance with environmental protection requirements when attacking by burning or by naked light.
Claims (4)
1. a colliery is with insulation of steel-tape armouring LSOH anti-flaming and sheath power cable; Comprise lead and cable core oversheath; Said lead comprises the conductor in insulating barrier and the insulating barrier; Said cable core comprises some leads, it is characterized in that, said insulating barrier is the halogen-free and low-smoke flame-retardant polyolefin insulating barrier; Said cable core oversheath is the halogen-free and low-smoke flame-retardant polyolefin oversheath, and the periphery of said cable core is coated with twining package tape, halogen-free and low-smoke flame-retardant polyolefin sheath, double-tape armor layer, halogen-free and low-smoke flame-retardant polyolefin oversheath from the inside to the outside successively.
2. coal according to claim 1 colliery is characterized in that with insulation of steel-tape armouring LSOH anti-flaming and sheath power cable said cable core is that three leads, four leads or three leads add a ground wire composition.
3. coal according to claim 1 colliery is with insulation of steel-tape armouring LSOH anti-flaming and sheath power cable; It is characterized in that; Said halogen-free and low-smoke flame-retardant polyolefin insulating barrier is the LSOH anti-flaming polyethylene layer; Said halogen-free and low-smoke flame-retardant polyolefin sheath is the LSOH anti-flaming polythene inner, and said halogen-free and low-smoke flame-retardant polyolefin oversheath is a LSOH anti-flaming polyethylene oversheath.
4. colliery according to claim 1 is characterized in that with insulation of steel-tape armouring LSOH anti-flaming and sheath power cable said twining package tape is the glass cloth twining package tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204685245U CN202307283U (en) | 2011-11-12 | 2011-11-12 | Steel-tape armouring low-smoke halogen-free flame retardant insulation and sheathing power cable for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204685245U CN202307283U (en) | 2011-11-12 | 2011-11-12 | Steel-tape armouring low-smoke halogen-free flame retardant insulation and sheathing power cable for coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202307283U true CN202307283U (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204685245U Expired - Fee Related CN202307283U (en) | 2011-11-12 | 2011-11-12 | Steel-tape armouring low-smoke halogen-free flame retardant insulation and sheathing power cable for coal mine |
Country Status (1)
| Country | Link |
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| CN (1) | CN202307283U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103971806A (en) * | 2013-02-04 | 2014-08-06 | 安徽新亚特电缆集团有限公司 | Nominal-voltage polyvinyl chloride cable |
-
2011
- 2011-11-12 CN CN2011204685245U patent/CN202307283U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103971806A (en) * | 2013-02-04 | 2014-08-06 | 安徽新亚特电缆集团有限公司 | Nominal-voltage polyvinyl chloride cable |
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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: 20120704 Termination date: 20131112 |