CN105785536A - Fire retardant optical cable and manufacturing method thereof - Google Patents
Fire retardant optical cable and manufacturing method thereof Download PDFInfo
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- CN105785536A CN105785536A CN201610351124.3A CN201610351124A CN105785536A CN 105785536 A CN105785536 A CN 105785536A CN 201610351124 A CN201610351124 A CN 201610351124A CN 105785536 A CN105785536 A CN 105785536A
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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
-
- 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
- G02B6/4434—Central member to take up tensile loads
-
- 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
- G02B6/4436—Heat resistant
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Insulated Conductors (AREA)
Abstract
The invention relates to a fire retardant optical cable and a manufacturing method thereof.The cable comprises a cable core and an outer sheath.The cable is characterized in that the cable core is wrapped by a water-blocking belt, the water-blocking belt is wrapped by an inner fireproof layer, the inner fireproof layer is wrapped by an armored metal moistureproof layer, a low-smoke zero-halogen ceramic polyolefin flame retardant layer is arranged outside the armored metal moistureproof layer in an extrusion mode and is tightly wrapped by an anti-ant layer, and the outermost layer of the optical cable is wrapped by a flame retardant rat-proof outer sheath.The optical cable is high in fire retardant performance and meets the requirements of international standards for the smoke density and fireproof grade, and smooth communication can be still kept even a fire breaks out, so that operation of key equipment is ensured, an alarm is given, fire hazards are reduced, and life and property safety is ensured; the optical cable is provided with the anti-ant layer and the rat-proof layer, rats and ants in a tunnel can be effectively resisted, the cable can adapt to complex application environment, the service life of the optical cable is prolonged, and signal transmission reliability is improved.The optical cable is reasonable in structural arrangement, strong in function and easy to manufacture, and is particularly suitable for being used in a subway and other rail transit.
Description
Technical field
The present invention relates to a kind of track traffic fire protection flame retarding optical cable and manufacture method thereof, belong to optic communication transmission technique field.
Background technology
Along with greatly developing of track traffic, optical cable with its high security, Electro Magnetic Compatibility, reliability, multiple solutions, expansible be widely applied in subway.But, mostly the optical cable that current track traffic uses is GYTZA and GYTZA53 structure, and both optical cables only sheath material is flame-proof material, and its fire protecting performance is more weak.Track traffic optical cable uses circumstance complication simultaneously, often has various Mus trouble, ant trouble, and cable configuration is very easily destroyed, and thereby results in the communication line interrupt of track traffic, it will cause serious impact to track traffic.
Summary of the invention
The technical problem to be solved is in that for the deficiency that above-mentioned prior art exists, it is provided that a kind of fire protection flame retarding optical cable being suitable for track traffic and manufacture method thereof, this optical cable can not only fire-retardant fireproof, and possess termite-resistant rodent-resistant function.
The present invention solves that the technical scheme that problem set forth above adopts is:
Include cable core and oversheath, it is characterized in that at cable core outer cladding waterstop, fireprotection layer in waterstop outer cladding, interior fireprotection layer outer cladding Sheathed metal damp-proof layer, low smoke and zero halogen ceramic polyolefin flame retardant coating is extruded outside Sheathed metal damp-proof layer, the outer anti-ant layer of hard-pressed bale of low smoke and zero halogen ceramic polyolefin flame retardant coating, the outermost layer at optical cable is coated with fire-retardant protection against rodents oversheath.
By such scheme, between anti-ant layer and fire-retardant protection against rodents oversheath, it is provided with armouring wire layer.
By such scheme, described cable core is layer-twisted type cable core, includes center strengthening core and is stranded in the Loose tube of reinforcement periphery, center, being set with optical communication element in Loose tube.
By such scheme, described optical communication element is optical fiber, fibre ribbon or fibre bundle, or high-temperature resistant optical fiber.
By such scheme, described interior fireprotection layer is held by mica tape and forms, or is low smoke and zero halogen ceramic polyolefine layer.
By such scheme, described Sheathed metal damp-proof layer is formed by stainless steel band, coated steel strip or the vertical bag of coating aluminium strip.
By such scheme, described anti-ant layer is made up of nylon 6, nylon66 fiber or nylon 12 and other material with anti-ant performance.
By such scheme, described steel wire armor layer is stainless steel silk layer, phosphating steel wire layer or zinc-coated wire layer.
By such scheme, described fire-retardant protection against rodents oversheath is made up of fire proofings such as fire-retardant protection against rodents polyolefin or oxidation protection against rodents polyethylene, and wherein protection against rodents additive level accounts for the 5 ~ 20% of oversheath gross weight.
By such scheme, the tensile strength of described optical cable is more than or equal to 1T(ton), comprcssive strength is more than 5000N/100mm, and shock resistance is more than 30N*m.
The technical scheme of manufacture method of the present invention is as follows:
The Loose tube and center strengthening core that are set with optical communication element are placed on cable-former pay off rack, formation cable core is twisted together with certain twisting pitch through guide wheel, then cable core vertical bag or one layer of waterstop of rich bag, fireprotection layer in a layer on bundling machine, adopts the bundle yarn binding that blocks water；
The cable core being coated with waterstop and interior fireprotection layer is wrapped one layer of Sheathed metal damp-proof layer through embossing calender is vertical, again by cable core complete for armouring at the uniform velocity through sheath mould, outside described metal vapor barrier, extrude low smoke and zero halogen ceramic polyolefin flame retardant coating with sheath extruding machine；
By the semi-finished product cable through cladding flame retardant coating at the uniform velocity through sheath mould, outside semi-finished product cable, extrude anti-ant layer with sheath extruding machine；
The semi-finished product cable being coated with anti-ant layer is finally placed in the centre of steel wire hauling cage machine, and around stranded a number of steel wire constitutes armouring wire layer, is then passed through extruding machine, extrudes fire-retardant protection against rodents oversheath with sheath extruding machine outside described cable core.
By such scheme, described sheath extruding machine sets gradually as charging aperture, machine barrel one district, machine barrel two district, machine barrel three district, machine barrel four district, machine barrel five district, machine neck and die orifice from each district of charging aperture to die orifice, and arranges each district temperature；The cooled region being arranged on die exit place adopts sub-sectional cooling, the warm water cooling bath that the first paragraph being connected with die orifice cooling adopts chilling temperature to be 50 ± 10 DEG C, and all the other each section is normal-temperature water cooling.
The beneficial effects of the present invention is: arrange multi-layer fire-retarded fireprotection layer inside and outside 1, the fire-retardant fireproof performance of optical cable is high, meets the international standard requirement to smoke density, fire-protection rating, and optical cable is resistant to 1100 DEG C of high temperature, meets the requirement of smoke density 50%；2, low smoke and zero halogen ceramic polyolefin material can harden under flame status or under 500 DEG C of high temperature above and ceramic gradually; 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; can play excellence heat insulation, cooling, gear fire effect, after burning formed containment vessel, can ensure that logical photosensitiveness when optical cable burns.By 950 DEG C of burn 3 hours, vibrations and water spray tests, the fire protection requirement of international highest standard can be met, even if breaking out of fire also is able to keep communication unimpeded, so that it is guaranteed that key equipment operating, start and report to the police, reduce fire hazard, it is ensured that the security of the lives and property；3, optical cable adopts metal vapor barrier and wire armoring structure, it is that optical cable has excellent mechanical performance, can effectively guarantee the tension compressive property of optical cable, the test that when can resist fire, vibrations and water drench, it also is able to keep the logical photosensitiveness of link under severe use environment, it is ensured that the reliability of signal transmission；4, optical cable is provided with ant-proof mouse-proof layer, including armouring wire layer, ant trouble can be suffered from by the Mus effectively resisted in rail tunnel, adapt to complicated applied environment, reduce the fault rate of lightguide cable link, improve optical cable service life and the reliability of signal transmission, be particularly suited in the railway traffic engineerings such as subway and use；5, cable configuration is arranged rationally, and function is strong, it is easy to make.
Accompanying drawing explanation
Fig. 1 is the radial section structure chart of one embodiment of the invention.
Detailed description of the invention
The present invention is expanded on further below in conjunction with detailed description of the invention.
As shown in Figure 1, include cable core and oversheath 9, described cable core is layer-twisted type cable core, include center strengthening core 1 and be stranded in the Loose tube 2 of reinforcement periphery, center, optical communication element it is set with in Loose tube, described optical communication element is optical fiber, fibre ribbon or fibre bundle, or high-temperature resistant optical fiber, also can fill water-blocking component or water-proofing powder in Loose tube.At cable core outer cladding waterstop 3, fireprotection layer 4 in waterstop outer cladding, described interior fireprotection layer is held by mica tape and forms, interior fireprotection layer outer cladding Sheathed metal damp-proof layer 5, and described Sheathed metal damp-proof layer is formed by the vertical bag of stainless steel band.Low smoke and zero halogen ceramic polyolefin flame retardant coating 6 is extruded outside Sheathed metal damp-proof layer; the monolateral thickness of described low smoke and zero halogen ceramic polyolefin flame retardant coating is 1.5～3.0mm; when optical cable runs into fire; low smoke and zero halogen ceramic polyolefin can quickly crust; the periphery of Sheathed metal layer it is evenly distributed on after crust; coordinate Sheathed metal layer and the mica tape of internal layer; outside flame and heat are intercepted outside cable core; mica tape, Sheathed metal layer and low smoke and zero halogen ceramic polyolefin three effectively coordinate internal cable core formation protection, improve refractory ability.The outer anti-ant layer 7 of hard-pressed bale of low smoke and zero halogen ceramic polyolefin flame retardant coating, described anti-ant layer is made up of nylon 12.Being provided with armouring wire layer 8 between anti-ant layer and fire-retardant protection against rodents oversheath, described steel wire armor layer is stainless steel silk layer, steel wire twisting pitch 600 ~ 1600mm, tension force 5 ~ 50N.Outermost layer at optical cable is coated with fire-retardant protection against rodents oversheath, and fire-retardant protection against rodents oversheath is made up of fire proofings such as fire-retardant protection against rodents polyolefin or oxidation protection against rodents polyethylene, and wherein protection against rodents additive level accounts for the 12% of oversheath gross weight.
The manufacturing process of the present embodiment is to carry out as follows:
Using diameter be the glass fibre reinforced composion of 3.6mm as center strengthening core, the Loose tube that 8 are set with optical communication element is placed on cable-former pay off rack, twists together formation cable core through guide wheel with the twisting pitch of 120mm；Then cable core is through the wrapped one layer of waterstop of bundling machine, fireprotection layer in a layer, adopts the bundle yarn binding that blocks water；
To be coated with the cable core traverse embossing calender armouring layer of metal steel band damp-proof layer of waterstop and interior fireprotection layer, again by cable core complete for metal steel strap armouring at the uniform velocity through sheath mould, outside described metal vapor barrier, low smoke and zero halogen ceramic polyolefin flame retardant coating is extruded with sheath extruding machine, described extruding machine sets gradually as charging aperture from each district of charging aperture to die orifice, machine barrel one district, machine barrel two district, machine barrel three district, machine barrel four district, machine barrel five district, machine neck and die orifice, and arranging each district temperature, to be respectively as follows: charging aperture be 150 ± 5 DEG C, machine barrel one district is 180 ± 10 DEG C, machine barrel two district is 190 ± 10 DEG C, machine barrel three district is 200 ± 10 DEG C, machine barrel four district is 210 ± 10 DEG C, machine barrel five district is 220 ± 10 DEG C, machine neck and die orifice are 230 ± 10 DEG C；The cooled region being arranged on die exit place adopts sub-sectional cooling, the warm water cooling bath that the first paragraph being connected with die orifice cooling adopts chilling temperature to be 50 ± 10 DEG C, and all the other each section is normal-temperature water cooling.
By the semi-finished product cable of cladding flame retardant coating at the uniform velocity through sheath mould, outside semi-finished product cable, anti-ant layer nylon 12 is extruded with sheath extruding machine, described extruding machine sets gradually as charging aperture from each district of charging aperture to die orifice, machine barrel one district, machine barrel two district, machine barrel three district, machine barrel four district, machine barrel five district, machine neck and die orifice, and arranging each district temperature, to be respectively as follows: charging aperture be 210 ± 5 DEG C, machine barrel one district is 230 ± 10 DEG C, machine barrel two district is 240 ± 10 DEG C, machine barrel three district is 240 ± 10 DEG C, machine barrel four district is 250 ± 10 DEG C, machine barrel five district is 250 ± 10 DEG C, machine neck and die orifice are 245 ± 10 DEG C；The cooled region being arranged on die exit place adopts sub-sectional cooling, the warm water cooling bath that the first paragraph being connected with die orifice cooling adopts chilling temperature to be 50 ± 10 DEG C, and all the other each section is normal-temperature water cooling.
Finally the semi-finished product cable being coated with anti-ant layer is placed in the centre of steel wire hauling cage machine, through extruding machine after the steel wire that around stranded quantity is suitable, outside described cable core, the fire-retardant protection against rodents oversheath of LSZH is extruded with sheath extruding machine, described extruding machine sets gradually as charging aperture from each district of charging aperture to die orifice, machine barrel one district, machine barrel two district, machine barrel three district, machine barrel four district, machine barrel five district, machine neck and die orifice, and arranging each district temperature, to be respectively as follows: charging aperture be 150 ± 5 DEG C, machine barrel one district is 180 ± 10 DEG C, machine barrel two district is 190 ± 10 DEG C, machine barrel three district is 200 ± 10 DEG C, machine barrel four district is 210 ± 10 DEG C, machine barrel five district is 220 ± 10 DEG C, machine neck and die orifice are 230 ± 10 DEG C；The cooled region being arranged on die exit place adopts sub-sectional cooling, the warm water cooling bath that the first paragraph being connected with die orifice cooling adopts chilling temperature to be 50 ± 10 DEG C, and all the other each section is normal-temperature water cooling.
Claims (10)
1. a fire protection flame retarding optical cable, include cable core and oversheath, it is characterized in that at cable core outer cladding waterstop, fireprotection layer in waterstop outer cladding, interior fireprotection layer outer cladding Sheathed metal damp-proof layer, extruding low smoke and zero halogen ceramic polyolefin flame retardant coating outside Sheathed metal damp-proof layer, the outer anti-ant layer of hard-pressed bale of low smoke and zero halogen ceramic polyolefin flame retardant coating, the outermost layer at optical cable is coated with fire-retardant protection against rodents oversheath.
2. by the fire protection flame retarding optical cable described in claim 1, it is characterised in that be provided with armouring wire layer between anti-ant layer and fire-retardant protection against rodents oversheath.
3., by the fire protection flame retarding optical cable described in claim 1 or 2, it is characterised in that described cable core is layer-twisted type cable core, include center strengthening core and be stranded in the Loose tube of reinforcement periphery, center, in Loose tube, being set with optical communication element.
4. by the fire protection flame retarding optical cable described in claim 1 or 2, it is characterised in that described optical communication element is optical fiber, fibre ribbon or fibre bundle, or high-temperature resistant optical fiber.
5. by the fire protection flame retarding optical cable described in claim 1 or 2, it is characterised in that described interior fireprotection layer is held by mica tape and forms, or is low smoke and zero halogen ceramic polyolefine layer.
6. by the fire protection flame retarding optical cable described in claim 1 or 2, it is characterised in that described Sheathed metal damp-proof layer is formed by stainless steel band, coated steel strip or the vertical bag of coating aluminium strip.
7. by the fire protection flame retarding optical cable described in claim 1 or 2, it is characterised in that described anti-ant layer is made up of nylon 6, nylon66 fiber or nylon 12 and other material with anti-ant performance.
8. by the fire protection flame retarding optical cable described in claim 1 or 2, it is characterised in that described fire-retardant protection against rodents oversheath is made up of fire proofings such as fire-retardant protection against rodents polyolefin or oxidation protection against rodents polyethylene, and wherein protection against rodents additive level accounts for the 5 ~ 20% of oversheath gross weight.
9. by the fire protection flame retarding optical cable described in claim 2, it is characterised in that the tensile strength of described optical cable is more than or equal to 1T, and comprcssive strength is more than 5000N/100mm, and shock resistance is more than 30N*m.
10. the manufacture method of a fire protection flame retarding optical cable, it is characterised in that
The Loose tube and center strengthening core that are set with optical communication element are placed on cable-former pay off rack, formation cable core is twisted together with certain twisting pitch through guide wheel, then cable core vertical bag or one layer of waterstop of rich bag, fireprotection layer in a layer on bundling machine, adopts the bundle yarn binding that blocks water；
The cable core being coated with waterstop and interior fireprotection layer is wrapped one layer of Sheathed metal damp-proof layer through embossing calender is vertical, again by cable core complete for armouring at the uniform velocity through sheath mould, outside described metal vapor barrier, extrude low smoke and zero halogen ceramic polyolefin flame retardant coating with sheath extruding machine；
By the semi-finished product cable through cladding flame retardant coating at the uniform velocity through sheath mould, outside semi-finished product cable, extrude anti-ant layer with sheath extruding machine；
The semi-finished product cable being coated with anti-ant layer is finally placed in the centre of steel wire hauling cage machine, and around stranded a number of steel wire constitutes armouring wire layer, is then passed through extruding machine, extrudes fire-retardant protection against rodents oversheath with sheath extruding machine outside described cable core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610351124.3A CN105785536A (en) | 2016-05-25 | 2016-05-25 | Fire retardant optical cable and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610351124.3A CN105785536A (en) | 2016-05-25 | 2016-05-25 | Fire retardant optical cable and manufacturing method thereof |
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| CN105785536A true CN105785536A (en) | 2016-07-20 |
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| CN201610351124.3A Pending CN105785536A (en) | 2016-05-25 | 2016-05-25 | Fire retardant optical cable and manufacturing method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526768A (en) * | 2016-11-29 | 2017-03-22 | 江苏亨通光电股份有限公司 | High-flame-resistant fireproof full-dry optical cable |
| CN106772852A (en) * | 2016-12-23 | 2017-05-31 | 通鼎互联信息股份有限公司 | A kind of dry type fire prevention micro- cable of protection against rodents central tube and preparation method thereof |
| CN107656342A (en) * | 2017-08-25 | 2018-02-02 | 江苏中天科技股份有限公司 | A kind of Novel anti-mouse stings optical cable and preparation method thereof |
| CN107688219A (en) * | 2017-09-30 | 2018-02-13 | 上海朗达电缆（集团）有限公司 | A kind of fireproof 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 |
| CN107748419A (en) * | 2017-11-10 | 2018-03-02 | 山东太平洋光纤光缆有限公司 | A kind of security protection optical cable and its manufacture method |
| CN108037573A (en) * | 2018-01-31 | 2018-05-15 | 成都亨通光通信有限公司 | Anti- bird, anti-rodent, anti-slungshot optical cable, the production technology and production mould of optical cable |
| CN108614339A (en) * | 2018-07-19 | 2018-10-02 | 北京亨通斯博通讯科技有限公司 | A kind of subway tunnel high fire-retardance optical cable |
| CN108646361A (en) * | 2018-05-21 | 2018-10-12 | 安徽电信器材贸易工业有限责任公司 | A kind of fire protection flame retarding optical cable and its manufacturing method |
| CN109061824A (en) * | 2018-10-10 | 2018-12-21 | 江苏亨通光电股份有限公司 | A kind of flame-proof cable |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526768A (en) * | 2016-11-29 | 2017-03-22 | 江苏亨通光电股份有限公司 | High-flame-resistant fireproof full-dry optical cable |
| CN106526768B (en) * | 2016-11-29 | 2019-07-23 | 江苏亨通光电股份有限公司 | High fire-retardance fire resisting Full-dry optical cable |
| CN106772852A (en) * | 2016-12-23 | 2017-05-31 | 通鼎互联信息股份有限公司 | A kind of dry type fire prevention micro- cable of protection against rodents central tube and preparation method thereof |
| CN107656342A (en) * | 2017-08-25 | 2018-02-02 | 江苏中天科技股份有限公司 | A kind of Novel anti-mouse stings optical cable and preparation method thereof |
| CN107688219A (en) * | 2017-09-30 | 2018-02-13 | 上海朗达电缆（集团）有限公司 | A kind of fireproof 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 |
| CN107748419A (en) * | 2017-11-10 | 2018-03-02 | 山东太平洋光纤光缆有限公司 | A kind of security protection optical cable and its manufacture method |
| CN108037573A (en) * | 2018-01-31 | 2018-05-15 | 成都亨通光通信有限公司 | Anti- bird, anti-rodent, anti-slungshot optical cable, the production technology and production mould of optical cable |
| CN108646361A (en) * | 2018-05-21 | 2018-10-12 | 安徽电信器材贸易工业有限责任公司 | A kind of fire protection flame retarding optical cable and its manufacturing method |
| CN108614339A (en) * | 2018-07-19 | 2018-10-02 | 北京亨通斯博通讯科技有限公司 | A kind of subway tunnel high fire-retardance optical cable |
| CN109061824A (en) * | 2018-10-10 | 2018-12-21 | 江苏亨通光电股份有限公司 | A kind of flame-proof cable |
| WO2020073761A1 (en) * | 2018-10-10 | 2020-04-16 | 江苏亨通光电股份有限公司 | Fireproof optical fiber cable |
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Application publication date: 20160720 |
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