CN106653219A - Novel optical-unit-post-laid low-voltage optical-fiber composite cable - Google Patents
Novel optical-unit-post-laid low-voltage optical-fiber composite cable Download PDFInfo
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- CN106653219A CN106653219A CN201710056166.9A CN201710056166A CN106653219A CN 106653219 A CN106653219 A CN 106653219A CN 201710056166 A CN201710056166 A CN 201710056166A CN 106653219 A CN106653219 A CN 106653219A
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- light unit
- composite cable
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- layer
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- 239000002131 composite material Substances 0.000 title claims abstract description 48
- 239000013307 optical fiber Substances 0.000 title claims abstract description 39
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 51
- 239000011707 mineral Substances 0.000 claims abstract description 51
- 239000004020 conductor Substances 0.000 claims abstract description 40
- 239000000779 smoke Substances 0.000 claims abstract description 31
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 29
- 239000003365 glass fiber Substances 0.000 claims abstract description 27
- 239000003063 flame retardant Substances 0.000 claims abstract description 14
- 229920003023 plastic Polymers 0.000 claims abstract description 11
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 4
- 150000002367 halogens Chemical class 0.000 claims description 26
- 238000000926 separation method Methods 0.000 claims description 26
- 230000004888 barrier function Effects 0.000 claims description 20
- 239000000835 fiber Substances 0.000 claims description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 238000012856 packing Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 235000019504 cigarettes Nutrition 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 229920000098 polyolefin Polymers 0.000 claims description 3
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 claims description 3
- 102000029749 Microtubule Human genes 0.000 claims description 2
- 108091022875 Microtubule Proteins 0.000 claims description 2
- 210000004688 microtubule Anatomy 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 230000003287 optical effect Effects 0.000 abstract description 5
- 230000009970 fire resistant effect Effects 0.000 abstract description 4
- 238000002955 isolation Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000007664 blowing Methods 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000009514 concussion Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229910000989 Alclad Inorganic materials 0.000 description 1
- 241000206672 Gelidium Species 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 108010059642 isinglass Proteins 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052627 muscovite Inorganic materials 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/22—Cables including at least one electrical conductor together with optical fibres
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/22—Metal wires or tapes, e.g. made of steel
- H01B7/221—Longitudinally placed metal wires or tapes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
Abstract
The invention relates to a novel optical-unit-post-laid low-voltage optical-fiber composite cable. The composite cable comprises three conductors and an optical unit; a fire-resistant mineral insulating layer wraps each conductor in an extrusion manner, and an aluminum-plastic composite belt longitudinal wrap layer is arranged outside each fire-resistant mineral insulating layer; the optical unit comprises optical fiber bundles, a hollow micro-tube, a low-smoke and zero-halogen inner protecting layer, a fire-resistance mineral inner isolation layer, a glass fiber taped covering layer and a low-smoke and zero-halogen outer protecting layer which are sequentially arranged from inside to outside; a glass fiber covering layer, a fire-resistant mineral outer isolation layer, a flame-retardant taped covering layer and a low-smoke and zero-halogen outer sheath are sequentially arranged outside the three conductors and the optical unit from inside to outside, and gaps among the three conductors and the optical unit in the glass fiber covering layer are filled with glass fiber filling ropes. The novel optical-unit-post-laid low-voltage optical-fiber composite cable has the advantages that air-blowing laying and optical fiber compositing technologies are combined, the composite material and structure of the cable are optimized, the optical-fiber composite cable can have a temperature measuring function, the fire resistance, seismic resistance, water resistance and thermal resistance of the composite cable are increased greatly at the same time, and the safety of electro-optical transmission lines is guaranteed.
Description
Technical field
The present invention relates to lay low pressure optical fiber after a kind of low pressure optical fiber composite cable, more particularly to a kind of new light unit
Composite cable.
Background technology
With the development that building intelligent is built, the use of optical fiber composite cable is more and more extensive.In the back of the body of such epoch
Under scape, our companies have developed successively low pressure optical fiber composite cable, middle pressure optical fiber composite cable and optical fiber composite overhead line, closely
Phase have developed blow arc-extinguishing mode optical fiber composite cable (optical fiber composite cable that a kind of light unit is laid after being carried out by air-blowing mode) again.
With the lifting of people's awareness of safety, in addition to power transmission, data conveying function is realized, it prevents optical fiber composite cable
Fiery function also receives publicity more and more.At present technology is more ripe and be widely adopted is optical fiber temperature-measurement function, i.e.,
Thermometric early warning can be carried out to it, prevent the expansion of disaster when line fault.At present the fire safe type power cable of application mainly leads to
Cross that fire-resistant isinglass belt is wrapped to realize fire resisting function, and applicable fire is required in addition to fire resistance, it is also contemplated that resistance to concussion, spray
Etc. particular/special requirement, in addition it is also contemplated that by the insulation requirement of core during fire, the load of cable can be affected because internal temperature is too high；It is right
This, conventional fire-resisting cable cannot meet demand.
In a word, for optical fiber composite cable, although air-blown installation, optical fiber complex technique are more ripe, but anti-
Fiery aspect of performance need to be improved.
The content of the invention
The invention provides low pressure optical fiber composite cable is laid after a kind of new light unit, it is multiple with reference to air-blown installation, optical fiber
Conjunction technology, and the composite and structure to cable be optimized, and makes optical fiber composite cable to realize temp sensing function, while
Fire prevention, antidetonation, water proof, heat-proof quality are also greatly improved, so as to ensure that the security of photoelectricity transmission circuit.
In order to achieve the above object, the present invention employs the following technical solutions realization：
Low pressure optical fiber composite cable, including 3 conductors and light unit are laid after a kind of new light unit；Squeeze outside every conductor
Bag refractory mineral insulating barrier, refractory mineral insulating barrier peripheral hardware aluminum plastic composite belt longitudinal covering；Light unit is by setting gradually from inside to outside
Fibre bundle, hollow micro-pipe, low smoke and zero halogen sheath, separation layer, glass fiber lapping layer, low smoke and zero halogen outer jacket in refractory mineral
Composition, wherein fibre bundle adopt air-blown installation after cable laying；The outside of 3 conductors and light unit sets successively from inside to outside glass
Glass silk belting layer, refractory mineral outer separation layer, fire-retardant lapping layer and low smoke and zero halogen oversheath, 3 in glass fiber belting layer piece are led
Filled by glass fibre gasket for packing gap between body and light unit.
The refractory mineral insulating barrier is made up of following component ratio by weight：
Separation layer and the outer separation layer of refractory mineral are made up of following components ratio by weight in the refractory mineral：
The hollow micro-pipe is PE micro-pipes, and hollow microtubule diameter is fibre bundle+4～6mm of external diameter.
The low smoke and zero halogen sheath is made using the low-smoke halogen-free flame retardant material of oxygen index (OI) >=42.
The conductor adopts stranded conductor of Equations of The Second Kind annealed copper strand wire, and its lay ratio is 12～14, and stranded conductor is tight
Pressure circular configuration, presses coefficient >=0.92.
Overlap overlap length >=the 6mm of the aluminum plastic composite belt longitudinal covering, lap-joint adopts adhesive bonding.
The low smoke and zero halogen oversheath is made using low-smoke halogen-free polyolefin flame-retardant sheath material.
Compared with prior art, the invention has the beneficial effects as follows：
1) it is used as conductor external insulation layer (refractory mineral insulating barrier) by developing refractory mineral insulating materials, develops fire resisting ore deposit
Thing sheath material is used as the insulation in light unit and sheath separation layer (the inside and outside separation layer of refractory mineral), refractory mineral insulating barrier
And separation layer generates the inorganic housing of ceramic-like when fire is met, and can isolate flame, so as to play heat-insulated, fire prevention and insulating effect,
Substantially increase fire protecting performance；
2) the aluminum plastic composite belt longitudinal covering set up outside refractory mineral insulating barrier, is that the alloy with water-proof function blocks water
Layer, during the Water spray after cable thermometric early warning waterproof effect can be played, and its overlap can using adhesive bonding
Guarantee block-water performance；And can meet cable impact, concussion in the case of water resistance；
3) high oxygen index (OI) low smoke and zero halogen sheath is extruded outside hollow micro-pipe, hydrolysis, energy occurs when cable heat is burnt
Enough play a part of to lower the temperature core；
4) in the outer wrapped fire-retardant lapping layer of the outer separation layer of refractory mineral, play and tighten protective effect, make refractory mineral outer every
Absciss layer intact can crust when meeting fire, it is to avoid cracking, phenomenon of scattering occur, and affect isolation effect；
5) present invention is optimized by the composite and structure to cable, and security performance is greatly improved, Jing tests, into
Product cable can bear 1050 DEG C of flame temperature, and fire duration was more than 5 hours, it is ensured that maintain normal work meeting in fire a period of time
Make.
Description of the drawings
Fig. 1 is the structural representation that low pressure optical fiber composite cable is laid after new light unit of the present invention.
Fig. 2 is that low pressure optical fiber composite cable combination process flow chart is laid after new light unit of the present invention.
In figure：1. the light of 2. refractory mineral insulating barrier of conductor, 3. aluminum plastic composite belt longitudinal covering, 4. glass fibre gasket for packing 5.
In the hollow refractory mineral of 7. low smoke and zero halogen sheath of micro-pipe 8. of fine beam 6. the low cigarette of 9. glass fiber lapping layer of separation layer 10. without
The refractory mineral of 11. glass fiber belting layer of the halogen outer jacket 12. fire-retardant low smoke and zero halogen oversheath of lapping layer 14. of outer separation layer 13.
Specific embodiment
The specific embodiment of the present invention is described further below in conjunction with the accompanying drawings：
As shown in figure 1, low pressure optical fiber composite cable is laid after a kind of new light unit of the present invention, including 3 conductors 1
And light unit；Refractory mineral insulating barrier 2, the peripheral hardware aluminum plastic composite belt longitudinal covering 3 of refractory mineral insulating barrier 2 are extruded outside every conductor 1；
Light unit is by separation layer in the fibre bundle 5, hollow micro-pipe 6, low smoke and zero halogen sheath 7, refractory mineral for setting gradually from inside to outside
8th, glass fiber lapping layer 9, low smoke and zero halogen outer jacket 10 are constituted, and wherein fibre bundle 5 adopts air-blown installation after cable laying；3
The outside of conductor 1 and light unit sets successively from inside to outside glass fiber belting layer 11, refractory mineral outer separation layer 12, fire-retardant lapping layer
13 and low smoke and zero halogen oversheath 14, the gap between 3 in glass fiber belting layer 11 piece conductor 1 and light unit is by glass fibre
Gasket for packing 4 is filled.
The refractory mineral insulating barrier 2 is made up of following component ratio by weight：
Separation layer 8 and the outer separation layer 12 of refractory mineral are made up of following components ratio by weight in the refractory mineral：
The hollow micro-pipe 6 is PE micro-pipes, and the internal diameter of hollow micro-pipe 6 is fibre bundle+4～6mm of external diameter.
The low smoke and zero halogen sheath 7 is made using the low-smoke halogen-free flame retardant material of oxygen index (OI) >=42.
The conductor 1 adopts stranded conductor of Equations of The Second Kind annealed copper strand wire, and its lay ratio is 12～14, and stranded conductor is tight
Pressure circular configuration, presses coefficient >=0.92.
Overlap overlap length >=the 6mm of the aluminum plastic composite belt longitudinal covering 3, lap-joint adopts adhesive bonding.
The low smoke and zero halogen oversheath 14 is made using low-smoke halogen-free polyolefin flame-retardant sheath material.
As shown in Fig. 2 being the combination process that low pressure optical fiber composite cable is laid after a kind of new light unit of the present invention
Flow chart.
The manufacturing process of conductor 1 and its external protection：Conductor material Jing wire drawings, twisted wire are closed to make to have and press circular configuration
Stranded conductor, extrude refractory mineral insulating barrier 2 outside stranded conductor, refractory mineral insulating barrier 2 is outer to indulge again alclad plastic composite strip 3.
Fibre bundle external protection manufacturing process in light unit：Extrude low smoke and zero halogen sheath 7 outside hollow micro-pipe 6, low cigarette without
Separation layer 8 in refractory mineral are extruded outside halogen sheath 7, then wrapped glass fiber lapping layer 9 on the outside of it, finally extrude low cigarette without
Halogen outer jacket 10.
By make 3 conductors 1 with external protection and fibre bundle external protection (not containing fibre bundle 5), side by side bunchy sets
Put, wrapped glass fiber belting layer 11 on the outside of it, refractory mineral isolation outer layer 12 is extruded outside glass fiber belting layer 11, further around bag
Fire-retardant lapping layer 13, outermost extrudes low smoke and zero halogen oversheath 14 and carries out Global Macros；Then 3 in glass fiber belting layer 11
Filled by glass fibre gasket for packing 4 gap between root conductor 1 and light unit.
Active pay-off equipment is adopted during light unit stranding, conductor thread core avris position is placed in, is combined jointly with conductor thread core,
Equipment tension force and laying up pitch control are CCPs.
Fibre bundle 5 advances fibre bundle 5 in the hollow micro-pipe 6 of row using system of laying after air-sweeping type using mechanically-propelled device,
Powerful air-flow is set to be sent into pipeline by the gas-tight silo of air-blowing machine using air compressor simultaneously, swiftly flowing air-flow makes optical fiber
Beam 5 is pulled in suspended state and in vain in place in hollow micro-pipe 6.When laying, the end of fibre bundle 5 does not stress, after the completion of laying
Fibre bundle 5 is loosely rested in hollow micro-pipe 6, and the tension for contributing to the service life of prolongation cable and increasing fibre bundle 5 is strong
Degree, is safest cabling mode so far.
Following examples are implemented under premised on technical solution of the present invention, give detailed embodiment and tool
The operating process of body, but protection scope of the present invention is not limited to following embodiments.Method therefor is such as without spy in following embodiments
Do not mentionlet alone and bright be conventional method.
【Embodiment 1】
Low pressure optical fiber composite cable, including 3 conductors 1 and light unit are laid after new light unit in the present embodiment；Often
Refractory mineral insulating barrier 2, the peripheral hardware aluminum plastic composite belt longitudinal covering 3 of refractory mineral insulating barrier 2 are extruded outside root conductor 1；Light unit is by certainly
In the fibre bundle 5 that sets gradually from inside to outside, hollow micro-pipe 6, low smoke and zero halogen sheath 7, refractory mineral separation layer 8, glass fiber around
Covering 9, low smoke and zero halogen outer jacket 10 are constituted；The outside of 3 conductors 1 and light unit sets successively from inside to outside glass fiber belting layer
11st, refractory mineral outer separation layer 12, fire-retardant lapping layer 13 and low smoke and zero halogen oversheath 14,3 in glass fiber belting layer 11 piece are led
Filled by glass fibre gasket for packing 4 gap between body 1 and light unit.
Conductor 1 adopts stranded conductor of Equations of The Second Kind annealed copper strand wire, and conductor lay ratio is 12, to guarantee interfacial dielectric layer
Compactness between flatness and twisted wire, adopts and presses circular configuration.
Fibre bundle 5 adopts multiply G652 optical fiber, and it forms layer-twisted type nonmetal structure optical cable together with external protection.
The refractory mineral insulating barrier 2 is made up of following component ratio by weight：
Separation layer 8 and the outer separation layer 12 of refractory mineral are made up of following components ratio by weight in the refractory mineral：
The mobility of refractory mineral insulating barrier 2 and refractory mineral inside/outside separation layer 8,12 is poor, and extrusion pressure is big, easily
The problems such as appearance rough surface and line footpath fluctuate.Therefore answer during bag extruding mold type selecting strict restrained stretching ratio 1.02-1.04 it
Between, extrusion temperature (general material is using incremental manner district by district) by the way of successively decreasing district by district, temperature deviation is controlled ± 3
DEG C, it is ensured that expression surface is smooth, smooth, while solving line footpath fluctuation problem.
Under the conditions of 1050 DEG C of flame temperature, fire duration was more than 5 hours for the made finished cable of the present embodiment.
【Embodiment 2】
The structure of low pressure optical fiber composite cable is laid in the present embodiment after new light unit with embodiment 1.
Refractory mineral insulating barrier 2 is made up of following component ratio by weight：
Separation layer 8 and the outer separation layer 12 of refractory mineral are made up of following components ratio by weight in refractory mineral：
Under the conditions of 1050 DEG C of flame temperature, fire duration was more than 5 hours for the made finished cable of the present embodiment.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art the invention discloses technical scope in, technology according to the present invention scheme and its
Inventive concept equivalent or change in addition, all should be included within the scope of the present invention.
Claims (8)
1. low pressure optical fiber composite cable is laid after a kind of new light unit, it is characterised in that including 3 conductors and light unit；Often
Refractory mineral insulating barrier, refractory mineral insulating barrier peripheral hardware aluminum plastic composite belt longitudinal covering are extruded outside root conductor；Light unit is by from introversion
Separation layer, glass fiber lapping layer, low cigarette in the fibre bundle that sets gradually outward, hollow micro-pipe, low smoke and zero halogen sheath, refractory mineral
Halogen outer jacket is constituted, and wherein fibre bundle adopts air-blown installation after cable laying；The outside of 3 conductors and light unit is by introversion
It is outer to set glass fiber belting layer, refractory mineral outer separation layer, fire-retardant lapping layer and low smoke and zero halogen oversheath, glass fiber belting layer successively
Filled by glass fibre gasket for packing 3 interior gaps between conductor and light unit.
2. low pressure optical fiber composite cable is laid after a kind of new light unit according to claim 1, it is characterised in that described
Refractory mineral insulating barrier is made up of following component ratio by weight：
3. low pressure optical fiber composite cable is laid after a kind of new light unit according to claim 1, it is characterised in that described
Separation layer and the outer separation layer of refractory mineral are made up of following components ratio by weight in refractory mineral：
4. low pressure optical fiber composite cable is laid after a kind of new light unit according to claim 1, it is characterised in that described
Hollow micro-pipe is PE micro-pipes, and hollow microtubule diameter is fibre bundle+4～6mm of external diameter.
5. low pressure optical fiber composite cable is laid after a kind of new light unit according to claim 1, it is characterised in that described
Low smoke and zero halogen sheath is made using the low-smoke halogen-free flame retardant material of oxygen index (OI) >=42.
6. low pressure optical fiber composite cable is laid after a kind of new light unit according to claim 1, it is characterised in that described
Conductor adopts stranded conductor of Equations of The Second Kind annealed copper strand wire, and its lay ratio is 12～14, and stranded conductor is to press circular configuration, tightly
Pressure coefficient >=0.92.
7. low pressure optical fiber composite cable is laid after a kind of new light unit according to claim 1, it is characterised in that described
Overlap overlap length >=the 6mm of aluminum plastic composite belt longitudinal covering, lap-joint adopts adhesive bonding.
8. low pressure optical fiber composite cable is laid after a kind of new light unit according to claim 1, it is characterised in that described
Low smoke and zero halogen oversheath is made using low-smoke halogen-free polyolefin flame-retardant sheath material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710056166.9A CN106653219A (en) | 2017-01-25 | 2017-01-25 | Novel optical-unit-post-laid low-voltage optical-fiber composite cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710056166.9A CN106653219A (en) | 2017-01-25 | 2017-01-25 | Novel optical-unit-post-laid low-voltage optical-fiber composite cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106653219A true CN106653219A (en) | 2017-05-10 |
Family
ID=58841446
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710056166.9A Withdrawn CN106653219A (en) | 2017-01-25 | 2017-01-25 | Novel optical-unit-post-laid low-voltage optical-fiber composite cable |
Country Status (1)
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| CN (1) | CN106653219A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL127725U1 (en) * | 2017-10-17 | 2019-04-23 | Predistribuce A S | Cable complex |
-
2017
- 2017-01-25 CN CN201710056166.9A patent/CN106653219A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL127725U1 (en) * | 2017-10-17 | 2019-04-23 | Predistribuce A S | Cable complex |
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Application publication date: 20170510 |