CN105842800A - Rat-proof anti-termite fire-proof optical cable and manufacture method thereof - Google Patents
Rat-proof anti-termite fire-proof optical cable and manufacture method thereof Download PDFInfo
- Publication number
- CN105842800A CN105842800A CN201610283252.9A CN201610283252A CN105842800A CN 105842800 A CN105842800 A CN 105842800A CN 201610283252 A CN201610283252 A CN 201610283252A CN 105842800 A CN105842800 A CN 105842800A
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- Prior art keywords
- fire
- termite
- proof
- resistant
- inner sheath
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
- G02B6/4486—Protective covering
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Insulated Conductors (AREA)
Abstract
The invention relates to a rat-proof anti-termite fire-proof optical cable and a manufacture method thereof. The optical cable includes a cable core and an outer sheath. The rat-proof anti-termite fire-proof optical cable is characterized in that an anti-flaming inner sheath wraps the cable core. The anti-flaming inner sheath is coated with an armor steel wire layer. The armor steel wire layer is wrapped with a low-smoke halegon-free ceramic polyolefin fire-proof layer. Finally, the outer layer of the optical cable is wrapped with an anti-flaming nylon outer sheath having an anti-termite function. The rat-proof anti-termite fire-proof optical cable is small in outer diameter, simple in structure, high in mechanical strength and toughness. The rat-proof anti-termite fire-proof optical cable has not only a good anti-flaming fire-proof performance, but also excellent rat-proof anti-termite functions due to the arrangement of the anti-flaming nylon outer sheath having the anti-termite function, the armor steel wire layer and the rat-proof reinforcing layer. Termite corrosion and rat bite can be prevented effectively, so that the optical cable can be more suitable for complex construction environments and use environments and the communication routing reliability is improved.
Description
Technical field
The present invention relates to a kind of optical cable for communication technology, be specifically related to a kind of termite-resistant rodent-resistant flame-proof cable and manufacture method thereof.
Background technology
Existing flame-proof cable mostly uses the ceramic sulphurated siliastic composite band flame retardant coating as cable of armouring tape and refractory heat-insulating, with low-smoke halogen-free polyolefin material as the fire-retardant surrounding layer of optical cable.Flame-retardant optical cable is mainly used in the closed area that the populations such as subway, track traffic, tunnel traffic are the most intensive, the use circumstance complication of optical cable, the information of transmission is important, and the cable in subway, tunnel is mostly laid in underground, uses environment relative closure, the plague of rats and ant evil are the most serious, the flame retarding material on existing flame-proof cable surface, without termite-resistant rodent-resistant function, subjects to the evil invasion and attack of plague of rats ant, makes optical cable impaired, the flame-retardant layer causing optical cable damages, thus causes the fire-retardant fireproof performance of optical cable to reduce.Additionally, optical cable uses the problem that pottery sulphurated siliastic composite band exists complex manufacturing technology as flame retardant coating.
Summary of the invention
The technical problem to be solved is the deficiency existed for above-mentioned prior art and proposes a kind of termite-resistant rodent-resistant flame-proof cable and manufacture method thereof, this optical cable can not only flame-retardant, but also there is stronger termite-resistant rodent-resistant function.
The present invention solves that the technical scheme that problem set forth above is used is: include cable core and oversheath, it is characterized in that outside cable core, extrude one layer of fire-retardant inner sheath, at fire-retardant inner sheath outer cladding armouring wire layer, outside armouring wire layer, extrude low smoke and zero halogen ceramic polyolefin flame retardant coating, finally there is in optical cable outermost layer cladding the fire-retardant nylon oversheath of anti-ant function.
By such scheme, between cable core and fire-retardant inner sheath, it is provided with protection against rodents enhancement Layer.
By such scheme, described protection against rodents enhancement Layer is glass fibre layer, or glass fibre belt, or glass fibre and aramid yarn mixed layer.
By such scheme, the monolateral thickness of described fire-retardant inner sheath is 1.0～2.0mm.
By such scheme, between fire-retardant inner sheath and armouring wire layer, it is provided with the fire prevention mica tape holding inner sheath.
By such scheme, the monolateral thickness of described low smoke and zero halogen ceramic polyolefin flame retardant coating is 1.5～3.0mm.
By such scheme, beam tube type cable core centered by described cable core, include sleeve pipe and the optical communication element being sleeved in sleeve pipe and water-blocking component.
By such scheme, described optical communication element is optical fiber, fibre ribbon or fibre bundle, or high-temperature resistant optical fiber.
The technical scheme of manufacture method of the present invention is as follows:
The sleeve pipe containing optical communication element is first made of extrusion process；
Then fire-retardant inner sheath is made: sleeve pipe and the tensile elements with anti-rat are released with constant tension force, by merging mould, tensile elements is evenly distributed on sleeve pipe periphery, enter inner sheath shaping mould, pass through extrusion process, fire proofing is uniformly extruded in the periphery of tensile elements, makes fire-retardant inner sheath；
Make low smoke and zero halogen ceramic polyolefin flame retardant coating again: released with constant tension force by the inner sheath made, by vertical bag or around-packing technology, the mica tape with fire-proof function is wrapped up around inner sheath with certain tension force, again a number of armouring wire, release with constant tension force, with certain twisting pitch uniformly around the surface wrapping in mica tape, enter extruded mould in the lump, pass through extrusion process, low smoke and zero halogen ceramic polyolefine material is uniformly extruded in around armouring wire, makes flame retardant coating；
Finally make for oversheath: the semi-finished product optical cable with flame retardant coating made is released with constant tension force and speed, through extrusion molding mould, the fire-retardant nylon oversheath with anti-ant function is uniformly extruded in the polyolefinic periphery of low smoke and zero halogen ceramic, again through tank cooling shaping, make termite-resistant rodent-resistant flame-proof cable.
The beneficial effects of the present invention is: 1, outermost layer is fire-retardant nylon layer, fire-retardant nylon has higher mechanical strength and toughness, smooth surface and weather resistance are good, excellent fireproof performance, for strengthening the fire-resistant and resistance to elevated temperatures of optical cable, one layer of low smoke and zero halogen ceramic polyolefin is had in nylon sheath wire, low smoke and zero halogen ceramic polyolefin material is i.e. the most hardenable and gradually ceramic under flame status or under 500 DEG C of high temperature above, it is fast that it has crust speed, investing temperature is low, after flame or high temperature ablation, ceramic armour body intensity is high, and section can generate uniform micropore, the heat insulation of excellence can be played, cooling, gear fire effect, the highest it is resistant to 1200 DEG C of continuous high temperatures.nullEqually distributed wire armoring is had in low smoke and zero halogen ceramic polyolefin，It is peripheral that wire armoring is evenly distributed on mica tape by the steel wire that external diameter is identical，While optical cable is acted the resistance to tension strengthening optical cable by armouring wire，Can also prevent mouse from optical cable core being nibbled and destroys，Steel wire internal layer is combined with high temperature resistant、Fire-resistant、The mica tape of heat-insulating flame-retardant function，When optical cable runs into fire，Low smoke and zero halogen ceramic polyolefin can quickly crust，The periphery of steel wire it is evenly distributed on after crust，Coordinate steel wire and the mica tape of internal layer，Outside flame and heat are intercepted outside cable core，Mica tape、Steel wire and low smoke and zero halogen ceramic polyolefin three effectively coordinate internal cable core formation protection，Improve refractory ability，Can fire-resistant by the highest level (CWZ) of International Electrotechnical Commission IEC60331 and Britain's refractory standard BS 6387、Water spray and mechanical shock test.2, the present invention not only possesses the strongest flame-retardant performance, and by setting, there is the fire-retardant nylon oversheath of anti-ant function, armouring wire and protection against rodents enhancement Layer, make it have the termite-resistant rodent-resistant function of excellence, can effectively prevent the moth erosion of white mosquito and mouse from gnawing, make cable more can bear complexity construction environment and use environment, improve communication lines by reliability.3, optical cable inner sheath is the nonmetal flame retarding construction of all dielectric, has lightning protection, fire-retardant, anti-rat, and after peeling off peripheral protection material, use of can directly registering one's residence, centre need not weld optical fiber, it is simple to installation.4, the present invention uses low smoke and zero halogen ceramic polyolefin flame retardant coating, and not only fire resistance is good, and reliability is high, and manufacture craft is good.5, the present invention has simple in construction, and external diameter is little, lightweight, and lateral pressure resistant, tensile property are excellent, and fire resistance is remarkable, the advantages such as environmental resistance is good.
Accompanying drawing explanation
Fig. 1 is the transverse cross-sectional view of one embodiment of the invention.
Detailed description of the invention
Further illustrate embodiments of the invention below in conjunction with the accompanying drawings.
Described optical cable includes cable core and oversheath, and centered by described cable core, beam tube type cable core, includes sleeve pipe
3 and be sleeved on optical communication element 1 and water-blocking component 2 in sleeve pipe, described optical communication element is optical fiber, can be 2 ~ 6 cores, and described water-blocking component is water-proofing powder, water blocking yarn, waterstop or waterproofing rope, and sleeve outer is 3.0；Being outside equipped with protection against rodents enhancement Layer 4 at cable core, described protection against rodents enhancement Layer is glass fibre layer, extrudes one layer of fire-retardant inner sheath 5, be made up of low-smoke halogen-free flame retardant material outside glass fibre layer, and the monolateral thickness of described fire-retardant inner sheath is 1.2mm；Uniformly hold fire prevention mica tape 6 in fire-retardant inner sheath periphery, mica tape outer cladding armouring wire layer 7 of preventing fires, armouring wire is zinc-coated wire or stainless steel steel wire.Extruding one layer of low smoke and zero halogen ceramic polyolefin flame retardant coating 8 outside armouring wire layer, the monolateral thickness of described low smoke and zero halogen ceramic polyolefin flame retardant coating is 2.0mm.Finally the outermost layer at optical cable extrudes one layer of fire-retardant nylon oversheath 9 with fire-retardant anti-ant function again, and the monolateral thickness of nylon outer sheath is 0.8.
The manufacturing process of the present invention is: first make the sleeve pipe containing optical communication element；By extrusion process, optical fiber, material water-proof material being extruded into single sleeve pipe together with macromolecular material, according to communication bandwidth and optical fiber model and the difference of type, the external diameter of sleeve pipe is between 2.0～12.0mm.Then fire-retardant inner sheath is made: the tensile elements with anti-rat is evenly distributed on its vicinity, increase the tensile property of optical cable, tensile elements can be glass fiber yarn, glass fiber tape, or glass fibre and the mixture of polyamide-based aramid fiber, tensile elements is released with certain constant-tension, the corresponding extruded mould of proportioning, pass through extrusion process, 1.0～2.0mm thickness fire proofings are uniformly extruded in around tensile elements, through tank cooling shaping, drier dries up, and makes the inner sheath of termite-resistant rodent-resistant flame-proof cable.Make low smoke and zero halogen ceramic polyolefin flame retardant coating again: released with constant tension force by the inner sheath semi-finished product optical cable made, by vertical bag or around-packing technology, heat insulation having, the mica tape of fire-resistant function wraps up around inner sheath with certain tension force, again a number of armouring wire, release with constant tension force, with certain twisting pitch uniformly around the surface wrapping in mica tape, the corresponding extruded mould of proportioning, pass through extrusion process, the low smoke and zero halogen ceramic polyolefine material that 1.5～3.0mm is thick is uniformly extruded in the periphery of armouring wire, again through tank cooling shaping, after drier dries up, make the intermediate jacket of termite-resistant rodent-resistant flame-proof cable.Oversheath makes: released with constant tension force by the intermediate jacket semi-finished product optical cable made, the corresponding extruded mould of proportioning, pass through extrusion process, the fire-retardant nylon material that 0.3～1.0mm is thick is uniformly extruded in the periphery of low smoke and zero halogen ceramic polyolefin flame retardant coating, again through tank cooling shaping, after drier dries up, make termite-resistant rodent-resistant flame-proof cable.
Claims (9)
1. a termite-resistant rodent-resistant flame-proof cable, include cable core and oversheath, it is characterized in that outside cable core, extrude one layer of fire-retardant inner sheath, at fire-retardant inner sheath outer cladding armouring wire layer, outside armouring wire layer, extrude low smoke and zero halogen ceramic polyolefin flame retardant coating, finally there is in optical cable outermost layer cladding the fire-retardant nylon oversheath of anti-ant function.
2. the termite-resistant rodent-resistant flame-proof cable as described in claim 1, it is characterised in that be provided with protection against rodents enhancement Layer between cable core and fire-retardant inner sheath.
3. the termite-resistant rodent-resistant flame-proof cable as described in claim 2, it is characterised in that described protection against rodents enhancement Layer is glass fibre layer, or glass fibre belt, or glass fibre and aramid yarn mixed layer.
4. the termite-resistant rodent-resistant flame-proof cable as described in claim 1 or 2, it is characterised in that the monolateral thickness of described fire-retardant inner sheath is 1.0～2.0mm.
5. the termite-resistant rodent-resistant flame-proof cable as described in claim 1 or 2, it is characterised in that be provided with the fire prevention mica tape holding inner sheath between fire-retardant inner sheath and armouring wire layer.
6. the termite-resistant rodent-resistant flame-proof cable as described in claim 1 or 2, it is characterised in that the monolateral thickness of described low smoke and zero halogen ceramic polyolefin flame retardant coating is 1.5～3.0mm.
7. the termite-resistant rodent-resistant flame-proof cable as described in claim 1 or 2, it is characterised in that beam tube type cable core centered by described cable core, includes sleeve pipe and is sleeved on optical communication element and water-blocking component in sleeve pipe.
8. the termite-resistant rodent-resistant flame-proof cable as described in claim 7, it is characterised in that described optical communication element is optical fiber, fibre ribbon or fibre bundle, or high-temperature resistant optical fiber.
9. the manufacture method of a termite-resistant rodent-resistant flame-proof cable, it is characterised in that
The sleeve pipe containing optical communication element is first made of extrusion process；
Then fire-retardant inner sheath is made: sleeve pipe and the tensile elements with anti-rat are released with constant tension force, by merging mould, tensile elements is evenly distributed on sleeve pipe periphery, enter inner sheath shaping mould, pass through extrusion process, fire proofing is uniformly extruded in the periphery of tensile elements, makes fire-retardant inner sheath；
Make low smoke and zero halogen ceramic polyolefin flame retardant coating again: released with constant tension force by the inner sheath made, by vertical bag or around-packing technology, the mica tape with fire-proof function is wrapped up around inner sheath with certain tension force, again a number of armouring wire, release with constant tension force, with certain twisting pitch uniformly around the surface wrapping in mica tape, enter extruded mould in the lump, pass through extrusion process, low smoke and zero halogen ceramic polyolefine material is uniformly extruded in around armouring wire, makes flame retardant coating；
Finally make for oversheath: the semi-finished product optical cable with flame retardant coating made is released with constant tension force and speed, through extrusion molding mould, the fire-retardant nylon oversheath with anti-ant function is uniformly extruded in the polyolefinic periphery of low smoke and zero halogen ceramic, again through tank cooling shaping, make termite-resistant rodent-resistant flame-proof cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610283252.9A CN105842800A (en) | 2016-05-03 | 2016-05-03 | Rat-proof anti-termite fire-proof optical cable and manufacture method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610283252.9A CN105842800A (en) | 2016-05-03 | 2016-05-03 | Rat-proof anti-termite fire-proof optical cable and manufacture method thereof |
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| CN105842800A true CN105842800A (en) | 2016-08-10 |
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| CN201610283252.9A Pending CN105842800A (en) | 2016-05-03 | 2016-05-03 | Rat-proof anti-termite fire-proof optical cable and manufacture method thereof |
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Cited By (6)
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| CN107462960A (en) * | 2017-09-06 | 2017-12-12 | 长飞光纤光缆股份有限公司 | A kind of central beam tube type anti-rat-bite optical cable |
| CN107728271A (en) * | 2017-10-24 | 2018-02-23 | 长飞光纤光缆股份有限公司 | A kind of high temperature resistant detection optical cable and its manufacture method |
| CN107993760A (en) * | 2017-11-25 | 2018-05-04 | 安徽华通电缆集团有限公司 | A kind of railway tunnel fire-proof and water-proof rat-and-ant proof light conduits |
| WO2019145046A1 (en) * | 2018-01-29 | 2019-08-01 | Prysmian S.P.A. | Fire resistant fibre optic cable |
| CN110727071A (en) * | 2019-10-29 | 2020-01-24 | 江苏亨通光电股份有限公司 | All-dielectric central beam tube type rat-proof termite-proof lightning-proof optical cable and preparation process thereof |
| CN111007604A (en) * | 2019-12-02 | 2020-04-14 | 广州亚太线缆科技有限公司 | Flame-retardant composite optical cable |
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| CN107993760A (en) * | 2017-11-25 | 2018-05-04 | 安徽华通电缆集团有限公司 | A kind of railway tunnel fire-proof and water-proof rat-and-ant proof light conduits |
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Application publication date: 20160810 |