CN109061824A - A kind of flame-proof cable - Google Patents
A kind of flame-proof cable Download PDFInfo
- Publication number
- CN109061824A CN109061824A CN201811177842.9A CN201811177842A CN109061824A CN 109061824 A CN109061824 A CN 109061824A CN 201811177842 A CN201811177842 A CN 201811177842A CN 109061824 A CN109061824 A CN 109061824A
- Authority
- CN
- China
- Prior art keywords
- flame
- cable
- outside
- proof cable
- coated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- G02B6/4436—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
Abstract
This application provides a kind of flame-proof cable, the flame-proof cable includes cable core, the waterstop being coated on outside cable core, the two-sided synthetic mica tape being coated on outside waterstop, the armor being coated on outside the two-sided synthetic mica tape, the sheath being coated on outside the armor.A kind of flame-proof cable of the application, ensure that optical cable high fire-retardance, fire resistance, improve the flame-retarding grade in application environment；It is designed using all-medium structure, there is apparent lightning protection, flameproof effect, the accident generation for drawing thunder is avoided that when directly lay using existing pole line to interior；In such a way that loose jacket layer strand half dry type is twisted, optical cable overall weight is reduced, is reduced due to ointment filling and the environmental pollution of generation.
Description
Technical field
The invention belongs to communications optical cable technologies by the application, are related to a kind of flame-proof cable more particularly to a kind of single sheath list armour
Fill all dielectric high fire-retardance flame-proof cable.
Background technique
As shown in Figure 1, being the structural schematic diagram of traditional fire-retardant cable, universal measure is to be conceived to steel wire or steel-tape armouring
The flame retardant property of the outer external protective material of enhancement layer.Due in optical cable there is also the substance that casing, fiber paste, ointment etc. are non-flame resistant, because
Even if this, using fire proofing costly, also not can guarantee optical cable high-performance refractory and smoke density is exceeded, and optical cable contains
Metal material be easy to cause electric leakage or short circuit accident, to influence optical cable in the utilization of the higher occasion of some security levels.
Fire-retardant cable to be applied is led currently on the market, generally improves optical cable by selecting excellent flame-retardant sheath material
Flame retardant property, but the non-flame resistant property material such as casing, fiber paste, ointment in optical cable also will affect the flame retardant level of entire optical cable.
After fire occurs, traditional fire-retardant cable can lead to optical fiber fragility fracture due to the combustive destruction of element, cause to transmit signal
Interruption, will affect the validity of safe-guard system；On the other hand, even if cable interior is not by extraneous flame burn
Destruction, but subsequent fray-out of flame gradually cool down during, characteristic of the optical cable due to different materials especially metal material
The coefficient of expansion is larger, and the contraction unevenness for causing optical cable to unify level causes in optical fiber surface adhesive stress, so as to influence to pass
The distortion or interruption of defeated signal, the use that certainly will will lead to phone, closed-circuit television etc. are broken down, and fire hair can be greatly influenced
The implementation rescued after life.It is continuous universal with broadband network, optical cable extensive utilization (such as hospital, film in public places
Institute, arenas, stadiums etc.), subway, airport, the worried fire incident of petroleum and other processing factories place, and these close
The place of key is extremely harsh to flame-retarding grade.High-performance refractory flame-proof cable prolongs fuel wood ensuring that it does not become in fire
On the basis of material, guarantee the transmission of optical signal occur in fire and in a subsequent period it is unaffected, ensure that communication is suitable
Freely.
Summary of the invention
The application technical problems to be solved are to provide a kind of single sheath list armouring all dielectric high fire-retardance flame-proof cable.
In order to solve the above-mentioned technical problem, this application provides a kind of flame-proof cable, the flame-proof cable include cable core,
The waterstop that is coated on outside cable core, is coated on the two-sided synthetic mica at the two-sided synthetic mica tape being coated on outside waterstop
Armor outside band, the sheath being coated on outside the armor.
Preferably, the armor is glass fibre yarn.
Preferably, sheath is extruded outside the glass fibre yarn.
Preferably, the sheath is made of low smoke and zero halogen material.
Preferably, the cable core includes center reinforcemen, and it is equal that the center reinforcemen periphery is equipped with several diameters
Loose tube is arranged multiple optical fiber in the Loose tube, fills fiber paste inside described sleeve pipe.
Preferably, water blocking yarn is filled in the waterstop.
Preferably, one layer of two-sided synthetic mica tape of the cable core longitudinal wrap.
Preferably, the waterstop is synchronous longitudinal wrap outside the cable core with the two-sided synthetic mica tape.
A kind of flame-proof cable of the application, ensure that optical cable high fire-retardance, fire resistance, improve fire-retardant in application environment
Security level；Designed using all-medium structure, have apparent lightning protection, flameproof effect, using existing pole line directly lay to
It is avoided that the accident for drawing thunder occurs when indoor；In such a way that loose jacket layer strand half dry type is twisted, optical cable overall weight is reduced, is reduced
The environmental pollution generated since ointment is filled.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of optical cable in the prior art.
Fig. 2 is a kind of structural schematic diagram of flame-proof cable of the application.
Wherein: 1 ', center reinforcemen；2 ', optical fiber；3 ', fiber paste；4 ', Loose tube；5 ', cable cream；6 ', moisture-proof layer；7 ', interior
Sheath；8 ', armor；9 ', oversheath；
1, center reinforcemen；2, optical fiber；3, fiber paste；4, Loose tube；5, water blocking yarn；6, waterstop；7, two-sided synthetic mica
Band；8, glass fibre yarn；9, sheath.
Specific embodiment
The application is described further in the following with reference to the drawings and specific embodiments, so that those skilled in the art can be with
It more fully understands the application and can be practiced, but illustrated embodiment is not as the restriction to the application.
As shown in Fig. 2, being a kind of flame-proof cable described herein, the flame-proof cable includes cable core, is coated on cable
Waterstop 6 outside core, is coated on outside the two-sided synthetic mica tape 7 the two-sided synthetic mica tape 7 being coated on outside waterstop 6
Armor, be coated on outside the armor and extrude sheath 9.The armor is glass fibre yarn 8.The sheath 9 is low
Cigarette halogen-free material is made.The cable core includes center reinforcemen 1, and it is equal that 1 periphery of center reinforcemen is equipped with several diameters
Loose tube 4, multiple optical fiber 2 are arranged in the Loose tube 4, fill fiber paste 3 inside described sleeve pipe.It is filled out in the waterstop 6
Filled with water blocking yarn 5.Preferably, the waterstop 6 is synchronous longitudinal wrap in the cable core with the two-sided synthetic mica tape 7
Outside.
The two-sided synthetic mica tape 7 of the application, mica tape are free of the crystallization water, and fusing point is more than 1300 DEG C, even if using temperature
More than 1000 DEG C, cable core can be also ensured not by fire threat, safety affluence degree is big, has excellent high temperature resistance and fire resistance
Energy.Half dry type cable core is filled without using ointment, largely reduces the smog generated when kindling.It is glass outside two-sided synthetic mica tape 7
The wrapped armouring of silvalin, the material have heat-insulated, noninflammability, the characteristics such as chemical corrosion resistance is high, and tensile strength high drawing is small.
Flame-proof cable described herein is mainly the requirement for considering high-performance refractory flame-proof cable, main application field
Scape is indoor.To avoid thunder and lightning introducing from causing to damage personal property, metal component is specially eliminated on material selection；
It is tangled structure using half dry type pine jacket layer, reduces the smog generated due to factice for filling, ensuring optical cable high fire-retardance fire resistance
Under the premise of, using single sheath, single sheathed structure, the size of optical cable is greatly lowered；Secondly, in material selection, there is no consider
The metal materials such as steel wire, composite band, but use outside cable core the wrapped armouring of glass fibre yarn 8 to ensure the tensile property of optical cable,
Meet the requirement pulled when laying；And optical cable is integrally all-medium structure.
The present invention is designed by special material selection and novel structure, be ensure that optical cable high fire-retardance, fire resistance, is mentioned
Flame-retarding grade in high application environment；It is designed using all-medium structure, there is apparent lightning protection, flameproof effect, utilized
Existing pole line is avoided that the accident for drawing thunder occurs when directly laying to interior；In such a way that loose jacket layer strand half dry type is twisted,
Optical cable overall weight is reduced, the environmental pollution generated since ointment is filled is reduced.
The processing step of flame-proof cable described herein is as follows:
The synchronous longitudinal wrap waterstop 6 of half dry type cable core stranding and two-sided synthetic mica tape 7 are reduced and are worked without implementing step by step
Intensity, improving production efficiency.Waterstop 6 need to be controlled, two-sided synthetic mica tape 7 overlaps reversed longitudinal wrap, it is ensured that longitudinal covering quality.Glass
Glass silvalin it is forward and reverse it is twisted after direct extrusion molding outer jacket, fire-retardant, fire resistance can not only be improved, moreover it is possible to which assistant reinforcement part mentions
High optical cable integrally stretching power
The flame-proof cable of the application realizes that all dielectric fire prevention class single layer non-metallic sheath, single layer low smoke and zero halogen layer optical cable are full
Foot: the burning of B class bunchy, the burning of smoke density >=60%, single vertical and fire resistance test, fire resistance test is according to GB/T19216-11/
25 standards can meet under 750 degrees Celsius, and under 90 minutes flame combustions, 2 optical power change of optical cable and optical fibres is less than 3db.
Embodiment described above is only the preferred embodiment lifted to absolutely prove the application, the protection model of the application
It encloses without being limited thereto.Those skilled in the art made equivalent substitute or transformation on the basis of the application, in the application
Protection scope within.The protection scope of the application is subject to claims.
Claims (8)
1. a kind of flame-proof cable, which is characterized in that the flame-proof cable includes cable core, the waterstop being coated on outside cable core, packet
Overlay on the two-sided synthetic mica tape outside waterstop, the armor being coated on outside the two-sided synthetic mica tape, be coated on it is described
Armor outside sheath.
2. a kind of flame-proof cable as described in claim 1, which is characterized in that the armor is glass fibre yarn.
3. a kind of flame-proof cable as claimed in claim 2, which is characterized in that extrude sheath outside the glass fibre yarn.
4. a kind of flame-proof cable as claimed in claim 3, which is characterized in that the sheath is made of low smoke and zero halogen material.
5. a kind of flame-proof cable as described in claim 1, which is characterized in that the cable core includes center reinforcemen, described
Center reinforcemen periphery is equipped with the equal Loose tube of several diameters, is arranged multiple optical fiber in the Loose tube, inside described sleeve pipe
Fill fiber paste.
6. a kind of flame-proof cable as described in claim 1, which is characterized in that be filled with water blocking yarn in the waterstop.
7. a kind of flame-proof cable as described in claim 1, which is characterized in that described one layer of two-sided synthetic mica of cable core longitudinal wrap
Band.
8. a kind of flame-proof cable as described in claim 1, which is characterized in that the waterstop and the two-sided synthesis cloud
Master tape is synchronous longitudinal wrap outside the cable core.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811177842.9A CN109061824A (en) | 2018-10-10 | 2018-10-10 | A kind of flame-proof cable |
| PCT/CN2019/104905 WO2020073761A1 (en) | 2018-10-10 | 2019-09-09 | Fireproof optical fiber cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811177842.9A CN109061824A (en) | 2018-10-10 | 2018-10-10 | A kind of flame-proof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109061824A true CN109061824A (en) | 2018-12-21 |
Family
ID=64764553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811177842.9A Pending CN109061824A (en) | 2018-10-10 | 2018-10-10 | A kind of flame-proof cable |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109061824A (en) |
| WO (1) | WO2020073761A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020073761A1 (en) * | 2018-10-10 | 2020-04-16 | 江苏亨通光电股份有限公司 | Fireproof optical fiber cable |
| CN115933081A (en) * | 2022-11-18 | 2023-04-07 | 宏安集团有限公司 | Half-dry type optical fiber ribbon cable |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102662220A (en) * | 2012-05-15 | 2012-09-12 | 珠海汉胜科技股份有限公司 | Loosely sleeved layer-stranded full-dry optical cable and manufacturing method thereof |
| CN104199156A (en) * | 2014-06-24 | 2014-12-10 | 江苏亨通光电股份有限公司 | Flame-retardant and fire-retardant cable with high performance |
| CN208752274U (en) * | 2018-10-10 | 2019-04-16 | 江苏亨通光电股份有限公司 | A kind of flame-proof cable |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6640033B2 (en) * | 2001-12-03 | 2003-10-28 | Alcatel | Dual-layer fire retardant structure with air gap |
| CN201698066U (en) * | 2010-05-31 | 2011-01-05 | 成都亨通光通信有限公司 | Fully-dry-type indoor and outdoor dual-purpose cable |
| RU161295U1 (en) * | 2015-12-22 | 2016-04-20 | Открытое акционерное общество Всероссийский научно-исследовательский, проектно-конструкторский и технологический институт кабельной промышленности (ВНИИ КП) | CABLE OPTICAL FIRE SAFE FIRE RESISTANT |
| CN105785536A (en) * | 2016-05-25 | 2016-07-20 | 长飞光纤光缆股份有限公司 | Fire retardant optical cable and manufacturing method thereof |
| 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 |
-
2018
- 2018-10-10 CN CN201811177842.9A patent/CN109061824A/en active Pending
-
2019
- 2019-09-09 WO PCT/CN2019/104905 patent/WO2020073761A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102662220A (en) * | 2012-05-15 | 2012-09-12 | 珠海汉胜科技股份有限公司 | Loosely sleeved layer-stranded full-dry optical cable and manufacturing method thereof |
| CN104199156A (en) * | 2014-06-24 | 2014-12-10 | 江苏亨通光电股份有限公司 | Flame-retardant and fire-retardant cable with high performance |
| CN208752274U (en) * | 2018-10-10 | 2019-04-16 | 江苏亨通光电股份有限公司 | A kind of flame-proof cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020073761A1 (en) * | 2018-10-10 | 2020-04-16 | 江苏亨通光电股份有限公司 | Fireproof optical fiber cable |
| CN115933081A (en) * | 2022-11-18 | 2023-04-07 | 宏安集团有限公司 | Half-dry type optical fiber ribbon cable |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020073761A1 (en) | 2020-04-16 |
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