CN103412381A - Flame-retarding fire-resistant layer stranding optical cable used for coal mine - Google Patents
Flame-retarding fire-resistant layer stranding optical cable used for coal mine Download PDFInfo
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- CN103412381A CN103412381A CN2013103218530A CN201310321853A CN103412381A CN 103412381 A CN103412381 A CN 103412381A CN 2013103218530 A CN2013103218530 A CN 2013103218530A CN 201310321853 A CN201310321853 A CN 201310321853A CN 103412381 A CN103412381 A CN 103412381A
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Abstract
The invention relates to a flame-retarding fire-resistant layer stranding optical cable used for a coal mine. The optical cable comprises a strengthening part (1), optical fibers(2), loose sleeves (3), a yarn binding layer (5), a composite metal strip (6), an inner sheath (7), a fire-resistant layer (8) and an outer sheath (9), wherein the strengthening part (1) is arranged in the middle, the loose sleeves (3) are stranded on the periphery of the strengthening part (1), the optical fibers (2) are arranged in the loose sleeves (3), the exterior of the loose sleeves (3) is wrapped by the yarn binding layer (5) and the composite metal strip (6) sequentially from interior to exterior, the inner sheath (7) is arranged outside the composite metal strip (6), the outer sheath (9) is arranged outside the inner sheath, and the fire-resistant layer (8) is arranged between the inner sheath (7) and the outer sheath (9). The optical cable has the advantages of being good in fire resistance and further capable of ensuring communication smoothness for a long time even in a fire disaster, and improving flame-retarding and fire-resistant performance of the cable due to the fact that the layer stranding structure is adopted.
Description
Technical field
The present invention relates to a kind of optical cable, particularly a kind of stranded flame-retardant optical cable for coal mines.
Background technology
The space situations of the relative closures such as railway tunnel, subway, track traffic, skyscraper, oil depot, mine, more and more wider application optical fiber cable is made optical fiber communication, the monitoring and controlling system of transmission line, the optical cable adopted after fire the occurs scaling loss of can burning very soon, the thrashing that causes the optical fiber cable transmission, for this reason, flame-proof cable starts to be applied to this type systematic.The structure of existing coal mine flame-retardant layer-stranding cable is comprised of layer-twisted type cable core and sheath.Sheath is divided into inner sheath and oversheath is two-layer, and inner sheath is extruded and formed by common polyethylene sheath material or flame-proof material, and oversheath extrudes the low-smoke non-halogen flame-retardant pe sheath after by steel band is vertical, wrapping and forms.Under prior art, the coal mine flame-retardant optical cable mainly relies on outermost flame-proof polyethylene sheath to play fire-retardant purpose, can not reach very high requirement, and there is no fire performance.
Chinese patent application number: 200810136251.7 disclose a kind of layer stranded full-medium optical cable, comprise cable core, cable core is extruded with the compound substance of glass fiber reinforced plastics and polyester material outward, compound substance is coated with oversheath, described cable core comprise central reinforce member and round the central reinforce member setting send sheath and gasket for packing, send the outside of sheath to be provided with and tear rope, send in sheath and be provided with optical fiber, when such structure occurred at fire, optical cable can very fast scaling loss, can't meet the use needs.
Summary of the invention
The object of the invention is to overcome the shortcoming of prior art, a kind of material fire performance excellence is provided, adopt the stranded flame-retardant optical cable for coal mines of layer-twisted type structure, the flame-retardant performance is strong, runs into fire and also can guarantee that the long-time communication of optical cable is unimpeded.
Purpose of the present invention is achieved through the following technical solutions: a kind of stranded flame-retardant optical cable for coal mines, it comprises reinforcement, optical fiber, loose sleeve pipe, pricks layer, metal compound belt, inner sheath, flame retardant coating and oversheath, the center of oversheath is provided with reinforcement, around reinforcement, be provided with a plurality of loose sleeve pipes, pine pipe box inside is provided with optical fiber, pine pipe box outside is enclosed with from inside to outside successively pricks layer and metal compound belt, metal compound belt is outside equipped with inner sheath, the internal sleeve outer setting has oversheath, is provided with flame retardant coating between inner sheath and oversheath.
Described inner sheath and oversheath xsect are annular.
In described bundle layer and described loose sleeve pipe, all be filled with water blocking layer.
Described water blocking layer is greasy for preventing water, water blocking yarn or waterstop.
Described inner sheath and oversheath are made by the low-smoke non-halogen flame-retardant tygon.
Described central reinforce member is the glass fibre reinforcement.
The present invention has the following advantages:
1, on the basis of existing colliery fire-retardant cable, increased one deck by fire-resistant isinglass belt or glass fiber tape, or the flame retardant coating of the combination of fire-resistant isinglass belt and glass fiber tape, extraordinary fire prevention, fire-resistant, fire resistance had.
2, for different applied environments, but the mode that the blocks water flexible Application of loose sleeve pipe is filled waterproofing unction or water blocking yarn, makes optical cable be applicable to applied environment more widely.
3, inner sheath and oversheath are made by the low-smoke non-halogen flame-retardant tygon, and environmental protection meets environmental requirement.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure: the 1-reinforcement, 2-optical fiber, 3-pine sleeve pipe, the 4-water blocking layer, 5-pricks layer, 6-metal compound belt, 7-inner sheath, 8-flame retardant coating, 9-oversheath.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing, but protection scope of the present invention is not limited to the following stated.
As shown in Figure 1, a kind of stranded flame-retardant optical cable for coal mines, it comprises reinforcement 1, optical fiber 2, loose sleeve pipe 3, pricks layer 5, metal compound belt 6, inner sheath 7, flame retardant coating 8, oversheath 9, center is provided with reinforcement 1, around reinforcement 1, be provided with a plurality of loose sleeve pipes 3, pine pipe box 3 inside are provided with optical fiber 2, pine pipe box 3 outsides are enclosed with from inside to outside successively pricks layer 5 and metal compound belt 6, metal compound belt is outside equipped with inner sheath 7, there is oversheath 9 the internal sleeve outside, in the middle of inner sheath 7 and oversheath 9 and be provided with flame retardant coating 8.
The correlated performance of optical cable meets communication industry standard YD/T901-2001 communication layer-stranding cable, the oversheath of optical cable is without the visible crackle of eyesight, more than the tension load of composite rope can reach 1200N, its minimum bending radius was 120mm, and can in the environment of-40 ℃～80 ℃, use; In withstand voltage test, add and hold under the condition that voltage is the 1500V AC power, 1 minute duration, insulator is without punch-through.
Claims (6)
1. stranded flame-retardant optical cable for coal mines, it is characterized in that: it comprises reinforcement (1), optical fiber (2), pine sleeve pipe (3), prick layer (5), metal compound belt (6), inner sheath (7), flame retardant coating (8) and oversheath (9), the center of oversheath (9) is provided with reinforcement (1), reinforcement (1) is provided with a plurality of loose sleeve pipes (3) on every side, pine pipe box (3) inside is provided with optical fiber (2), pine pipe box (3) outside is enclosed with from inside to outside successively pricks layer (5) and metal compound belt (6), the arranged outside of metal compound belt (6) has inner sheath (7), inner sheath (7) outer setting has oversheath (9), between inner sheath (7) and oversheath (9), be provided with flame retardant coating (8).
2. a kind of stranded flame-retardant optical cable for coal mines according to claim 1, it is characterized in that: described inner sheath (7) and oversheath (9) xsect are annular.
3. a kind of stranded flame-retardant optical cable for coal mines according to claim 1, is characterized in that: all be filled with water blocking layer (4) in described bundle layer (5) and loose sleeve pipe (3).
4. a kind of stranded flame-retardant optical cable for coal mines according to claim 3, it is characterized in that: described water blocking layer (4) is greasy for preventing water, water blocking yarn or waterstop.
5. a kind of stranded flame-retardant optical cable for coal mines according to claim 1, it is characterized in that: described inner sheath (7) and oversheath (9) are made by the low-smoke non-halogen flame-retardant tygon.
6. a kind of stranded flame-retardant optical cable for coal mines according to claim 1, it is characterized in that: described central reinforce member (1) is the glass fibre reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103218530A CN103412381A (en) | 2013-07-29 | 2013-07-29 | Flame-retarding fire-resistant layer stranding optical cable used for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103218530A CN103412381A (en) | 2013-07-29 | 2013-07-29 | Flame-retarding fire-resistant layer stranding optical cable used for coal mine |
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| CN103412381A true CN103412381A (en) | 2013-11-27 |
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| CN2013103218530A Pending CN103412381A (en) | 2013-07-29 | 2013-07-29 | Flame-retarding fire-resistant layer stranding optical cable used for coal mine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926665A (en) * | 2014-04-01 | 2014-07-16 | 江苏通鼎光电股份有限公司 | Indoor micro optical fiber cable with large number of cores |
| CN105161169A (en) * | 2015-09-25 | 2015-12-16 | 苏州国华特种线材有限公司 | Hybrid cable |
| CN108417308A (en) * | 2018-01-12 | 2018-08-17 | 江苏源达线缆科技有限公司 | A kind of high security electric automobile high-voltage battery cables |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101533135A (en) * | 2009-04-28 | 2009-09-16 | 天津市立孚光电线缆开发有限公司 | Fire resistant optical communication cable for coal mine |
| CN201974557U (en) * | 2011-02-24 | 2011-09-14 | 江苏南方通信科技有限公司 | High fiber count layer stranded type optical cable |
| CN202285052U (en) * | 2011-08-19 | 2012-06-27 | 天津市立孚光电线缆开发有限公司 | Layer stranded thunder and lightning prevention fire retardant and resistant optical communication cable used for coal mine |
-
2013
- 2013-07-29 CN CN2013103218530A patent/CN103412381A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101533135A (en) * | 2009-04-28 | 2009-09-16 | 天津市立孚光电线缆开发有限公司 | Fire resistant optical communication cable for coal mine |
| CN201974557U (en) * | 2011-02-24 | 2011-09-14 | 江苏南方通信科技有限公司 | High fiber count layer stranded type optical cable |
| CN202285052U (en) * | 2011-08-19 | 2012-06-27 | 天津市立孚光电线缆开发有限公司 | Layer stranded thunder and lightning prevention fire retardant and resistant optical communication cable used for coal mine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926665A (en) * | 2014-04-01 | 2014-07-16 | 江苏通鼎光电股份有限公司 | Indoor micro optical fiber cable with large number of cores |
| CN105161169A (en) * | 2015-09-25 | 2015-12-16 | 苏州国华特种线材有限公司 | Hybrid cable |
| CN108417308A (en) * | 2018-01-12 | 2018-08-17 | 江苏源达线缆科技有限公司 | A kind of high security electric automobile high-voltage battery cables |
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Application publication date: 20131127 |