CN203871073U - Lightening-proof photoelectric composite cable for communication base station - Google Patents
Lightening-proof photoelectric composite cable for communication base station Download PDFInfo
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- CN203871073U CN203871073U CN201420301141.2U CN201420301141U CN203871073U CN 203871073 U CN203871073 U CN 203871073U CN 201420301141 U CN201420301141 U CN 201420301141U CN 203871073 U CN203871073 U CN 203871073U
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- 238000004891 communication Methods 0.000 title claims abstract description 61
- 239000002131 composite material Substances 0.000 title claims abstract description 46
- 239000011241 protective layer Substances 0.000 claims abstract description 48
- 230000005693 optoelectronics Effects 0.000 claims description 43
- 229920001903 high density polyethylene Polymers 0.000 claims description 18
- 239000004700 high-density polyethylene Substances 0.000 claims description 18
- 230000002787 reinforcement Effects 0.000 claims description 13
- 239000013307 optical fiber Substances 0.000 claims description 10
- 238000012360 testing method Methods 0.000 claims description 10
- 239000004698 Polyethylene Substances 0.000 claims description 9
- 229910052736 halogen Inorganic materials 0.000 claims description 9
- 150000002367 halogens Chemical class 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 229920001179 medium density polyethylene Polymers 0.000 claims description 9
- 239000004701 medium-density polyethylene Substances 0.000 claims description 9
- -1 polyethylene Polymers 0.000 claims description 9
- 229920000573 polyethylene Polymers 0.000 claims description 9
- 239000000779 smoke Substances 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 6
- 238000005253 cladding Methods 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 6
- 239000010445 mica Substances 0.000 claims description 6
- 229910052618 mica group Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- RJDOZRNNYVAULJ-UHFFFAOYSA-L [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] RJDOZRNNYVAULJ-UHFFFAOYSA-L 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000011152 fibreglass Substances 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 abstract description 14
- 230000003287 optical effect Effects 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 208000025274 Lightning injury Diseases 0.000 abstract 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 13
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 206010042255 Struck by lightning Diseases 0.000 description 2
- 239000011247 coating layer Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 230000008054 signal transmission Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Communication Cables (AREA)
Abstract
The utility model relates to the field of the cable technology, especially to a lightening-proof photoelectric composite cable for a communication base station. The lightening-proof photoelectric composite cable consists of a cable core, an inner sheath, an armored layer, an outer sheath, a ground layer, a connecting rib, hanging wires, a hanging wire protective layer, and an optical unit. The outside of the cable core is coated with a first protection layer that is extruded and coated with the inner sheath; the outside of the inner sheath is coated with the a second protection layer; the ground layer is arranged outside the second protection layer; the armored layer coats the outside of the ground layer; the outside of the armored layer is extruded and coated with the outer sheath; the hanging wire protective layer coats the outside of the hanging wires; and one end of the connecting rib is connected with the hanging wire protective layer and the other end is connected with the outer sheath. The cable is characterized in that the hanging wires are arranged outside the optical unit; the optical unit and the hanging wires are arranged in the hanging wire protective layer; and the hanging wires are formed by a plurality of reinforced elements and peripheries of all reinforced elements are at the same cylindrical surface. The provided cable has the following beneficial effects: the manufacturing is simple; the production speed is fast, the ground layer resistivity is low; the maintenance cost is low; and the optical communication is not influenced by lightning stroke.
Description
Technical field
The utility model belongs to technical field of cables, especially relates to a kind of anti-lightning strike optoelectronic composite cable for communication base station.
Background technology
Over nearly 20 years, China's information industry, with average annual 25% speed increase, is led over the development of other industries, has become the first pillar industry in industry.Estimate that information industry will be turned over again in coming 10 years.In communication industry product, there is the extraordinary lightning-proof optical cable product of communication that security performance is higher and will have good market prospects.Along with the 3G network communication network development, also the lightning protection measures of communication base station room will be considered, avoid catching fire because thunder and lightning causes communication base station and electric power interruption, machine room, to bring large-area communication disruption, equipment the major accident such as is burnt by thunderbolt, just need on the electric power between communication base station and steel tower, signal transmission product, consider safer product.Along with the develop rapidly of 3G business, the construction scale of communication base station expands gradually, and 3G communication network technology is built, and at least the whole nation needs the base station of 300,000 3G communication networks, if it is the cable of 100 meters of left and right that each base station needs length, this will be a larger market.
Carry out effective research and obtained good achievement for the lightning protection of cable both at home and abroad.The applicant has also done a large amount of research and development aspect lightning protected cable, as: utility model name is called: self-supporting lightning-proof power cable, the patent No. are: 200920150584.5; Utility model name is called: lightning-proof power cable, the patent No. are: 200920150583.0; Utility model name is called: lightning-proof optical cable, the patent No. are: 200920150582.6; Utility model name is called: have the lightning-proof power cable of reinforced layer, the patent No. to be: 200910140719.4; Utility model name is called: multigroup lightning protection optical cable, the patent No. are: 200910140717.5; Utility model name is called: self-supporting lightning-proof optical cable, the patent No. are: the patents such as 200910140715.6, have all formed product and used in operator's communication base station.But they also have the following disadvantages: (1) ground plane adopts the tiltedly mode of bag, and speed of production is slower; (2) armour has only played the effect of armouring, and is standing after thunderbolt (3), and the partial earthing layer in cable blows, and sheath is melted in cable core interval insulated wire cores is combined together, makes insulated wire cores be difficult to separate; Can only make waste disposal.
Above-mentioned deficiency has strengthened the maintenance cost after cable thunderbolt.
For this reason, applicant has applied for that on July 1st, 2013 name is called: communication base station lightning retardant cable, the patent No. is: 201320382810.9 utility model patent, although embodiment 2 has wherein reached the object of invention, but, also exist following major defect: in the time that raising electric pressure is tested, puncture sheath, the instantaneous temperature that exceedes 200 DEG C that reached in cable core, due to the storage of optical fiber, operating ambient temperature is less than 100 DEG C conventionally, therefore, after high voltage test, optical fiber communication is interrupted, therefore, in formal use occasion, puncture sheath if meet thunder and lightning, also may cause the generation of this phenomenon.
Utility model content
In order to address the above problem, the purpose of this utility model is to be further improved, and discloses a kind of anti-lightning strike optoelectronic composite cable for communication base station, and it is realized by the following technical solutions.
For an anti-lightning strike optoelectronic composite cable for communication base station, include cable core, inner sheath, armour, oversheath, ground plane, dowel, messenger wire, messenger wire sheath, light unit; Cable core is to be made up of multiple electric units, and each electric unit is made up of conductor and the insulating barrier that envelopes conductor; Light unit is made up of loose sleeve pipe and many optical fibers being positioned at loose sleeve pipe; Cable core is coated with the first protective layer, inner sheath extrusion molding is coated on outside the first protective layer, and inner sheath is coated with the second protective layer, and ground plane is positioned at outside the second protective layer, and armour is coated on outside ground plane, and oversheath extrusion molding is coated on outside armour; Armour is one side film steel band, and the face that armour contacts with ground plane is non-overlay film face; The first protective layer, the second protective layer are all mica tape; Messenger wire sheath is coated on outside messenger wire, and dowel one end connects messenger wire sheath, the other end connects oversheath; It is characterized in that messenger wire is positioned at outside light unit, light unit, hang to being all arranged in messenger wire sheath, messenger wire formed by multi reinforcements and the outer rim of all reinforcements on the same face of cylinder.
A kind of anti-lightning strike optoelectronic composite cable for communication base station described above, is characterized in that described ground plane is made up of many copper bars or aluminium bar.
A kind of anti-lightning strike optoelectronic composite cable for communication base station described above, is characterized in that described ground plane is that the direction that favours the direction of cable core axis or be parallel to cable core axis is coated on outside the second protective layer.
A kind of anti-lightning strike optoelectronic composite cable for communication base station described above, while it is characterized in that described ground plane is coated on outside the second protective layer to favour the direction of cable core axis, coated pitch is 15-30 times of the second protective layer diameter.
A kind of anti-lightning strike optoelectronic composite cable for communication base station described above, is characterized in that described electric unit is that parallel mode is distributed in cable core or is distributed in cable core in the stranded mode of one direction spiral.
A kind of anti-lightning strike optoelectronic composite cable for communication base station described above, it is characterized in that described the first protective layer be longitudinally or the mode of spiral be coated on outside cable core; While being longitudinally coated, the overlapping width of overlap joint is 2-4mm; When helical coated, overlap joint Duplication is 15%-30%.
A kind of anti-lightning strike optoelectronic composite cable for communication base station described above, the material that it is characterized in that described insulating barrier is polyvinyl chloride or high density polyethylene (HDPE) or medium density polyethylene or low smoke and zero halogen polyethylene.
A kind of anti-lightning strike optoelectronic composite cable for communication base station described above, the material that it is characterized in that described oversheath is high density polyethylene (HDPE) or medium density polyethylene or low smoke and zero halogen polyethylene.
A kind of anti-lightning strike optoelectronic composite cable for communication base station described above, the material that it is characterized in that described inner sheath is high density polyethylene (HDPE) or medium density polyethylene or low smoke and zero halogen polyethylene.
A kind of anti-lightning strike optoelectronic composite cable for communication base station described above, it is characterized in that described the first protective layer, the second protective layer are all synthetic mica tapes, and the thickness of mica tape is 0.1mm-2mm.
A kind of anti-lightning strike optoelectronic composite cable for communication base station described above, is characterized in that described reinforcement is nonmetallic, preferably fiberglass-reinforced plastic lever.
A kind of anti-lightning strike optoelectronic composite cable for communication base station described above, is characterized in that described optical fiber has following performance:
Appoint and get continuous 22 meters in limit and test, cut-off wavelength :≤1260nm;
Maximum attenuation coefficient on 1310nm wavelength is: 0.34dB/km;
Maximum attenuation coefficient on 1550nm wavelength is: 0.20dB/km;
In the time of 1550nm wavelength single-deck 2km length, PMD Coefficient :≤0.20ps/
;
Fibre core/covering center of circle degree error :≤0.6 μ m;
Cladding diameter is: 125 ± 1 μ m;
Cladding non-circularity :≤1%;
Coat diameter is: 245 ± 10 μ m.
In the utility model, ground plane is metal, and the inner face of armour is non-coating layer with ground plane contact-making surface, therefore be also metal level, makes not only adjacent contact of ground plane, and armour carried out parallel connection, makes ground plane reach less resistance value; Standing thunderstorm hour, the caloric value in short-term of ground plane adds little, and the probability that therefore thunderbolt is blown reduces greatly; In addition, steel dress layer has also played armouring, against pressure, anti-effect of hitting.
In the utility model, the existence of the first protective layer, the second protective layer, has isolated heat widely, in thunderbolt situation, although may produce a large amount of heats, this heat, under the isolation of the first protective layer, the second protective layer, makes the work of the electric unit in cable core unaffected; In addition, thunderbolt high temperature can not enter cable core gap after inner sheath is melted, and therefore, after thunderbolt, when temperature declines, sheath still can solidify, and does not substantially affect cable performance, and it is quite convenient to safeguard.
In the utility model, messenger wire mode stranded with one-way spiral or parallel placement is arranged on outside, light unit, optical fiber in light unit also can be many, because messenger wire is nonmetallic, therefore, be subject to hardly effects of lightning, have the electric unit of metal part even if broken, light unit still can use.
Adopt the anti-lightning strike optoelectronic composite cable for communication base station of the present utility model, carry out high voltage test, it is respectively 1,000,000 volts and 1,000 ten thousand volts, in test and after test, do not make fibre-optic proper communication in light unit, and structure before adopting, in the time of 1,000,000 volts, just normal open light signal just.
Optoelectronic composite cable of the present utility model when ground plane is parallel with cable core axis, can be produced together in oversheath extrusion process, does not need other stranded operation, and therefore, speed of production is faster, cost is lower.
Optoelectronic composite cable of the present utility model, behind the light unit having produced, reinforcement can directly complete in oversheath operation together, can be arranged and be designed by mould, carries out one-shot forming.
Therefore, the utlity model has following main beneficial effect: making is simple, speed of production is fast, ground plane resistivity is lower, maintenance cost is lower, optical communication is not affected by thunderbolt.
Brief description of the drawings
Fig. 1 is the cross-sectional structure schematic diagram of the utility model embodiment.
Embodiment
embodiment 1
Ask for an interview Fig. 1, a kind of anti-lightning strike optoelectronic composite cable for communication base station, includes cable core, inner sheath 6, armour 9, oversheath 10, ground plane 8, dowel 11, messenger wire 13, messenger wire sheath 12, light unit; Cable core is to be made up of multiple electric units, and each electric unit is made up of conductor 1 and the insulating barrier 2 that envelopes conductor; Light unit is made up of loose sleeve pipe 4 and the many optical fibers 3 that are positioned at loose sleeve pipe; Cable core is coated with the first protective layer 5, inner sheath extrusion molding is coated on outside the first protective layer, and inner sheath is coated with the second protective layer 7, and ground plane is positioned at outside the second protective layer, and armour is coated on outside ground plane, and oversheath extrusion molding is coated on outside armour; Armour is one side film steel band, and the face that armour contacts with ground plane is non-overlay film face; The first protective layer, the second protective layer are all mica tape; Messenger wire sheath is coated on outside messenger wire, and dowel one end connects messenger wire sheath, the other end connects oversheath; It is characterized in that messenger wire is positioned at outside light unit, light unit, hang to being all arranged in messenger wire sheath, messenger wire formed by multi reinforcements and the outer rim of all reinforcements on the same face of cylinder 14.
A kind of anti-lightning strike optoelectronic composite cable for communication base station described above, is characterized in that described ground plane is made up of many copper bars or aluminium bar.
A kind of anti-lightning strike optoelectronic composite cable for communication base station described above, is characterized in that described ground plane is that the direction that favours the direction of cable core axis or be parallel to cable core axis is coated on outside the second protective layer.
A kind of anti-lightning strike optoelectronic composite cable for communication base station described above, while it is characterized in that described ground plane is coated on outside the second protective layer to favour the direction of cable core axis, coated pitch is 15-30 times of the second protective layer diameter.
A kind of anti-lightning strike optoelectronic composite cable for communication base station described above, is characterized in that described electric unit is that parallel mode is distributed in cable core or is distributed in cable core in the stranded mode of one direction spiral.
A kind of anti-lightning strike optoelectronic composite cable for communication base station described above, it is characterized in that described the first protective layer be longitudinally or the mode of spiral be coated on outside cable core; While being longitudinally coated, the overlapping width of overlap joint is 2-4mm; When helical coated, overlap joint Duplication is 15%-30%.
A kind of anti-lightning strike optoelectronic composite cable for communication base station described above, the material that it is characterized in that described insulating barrier is polyvinyl chloride or high density polyethylene (HDPE) or medium density polyethylene or low smoke and zero halogen polyethylene.
A kind of anti-lightning strike optoelectronic composite cable for communication base station described above, the material that it is characterized in that described oversheath is high density polyethylene (HDPE) or medium density polyethylene or low smoke and zero halogen polyethylene.
A kind of anti-lightning strike optoelectronic composite cable for communication base station described above, the material that it is characterized in that described inner sheath is high density polyethylene (HDPE) or medium density polyethylene or low smoke and zero halogen polyethylene.
A kind of anti-lightning strike optoelectronic composite cable for communication base station described above, it is characterized in that described the first protective layer, the second protective layer are all synthetic mica tapes, and the thickness of mica tape is 0.1mm-2mm.
A kind of anti-lightning strike optoelectronic composite cable for communication base station described above, is characterized in that described reinforcement is nonmetallic, preferably fiberglass-reinforced plastic lever.
A kind of anti-lightning strike optoelectronic composite cable for communication base station described above, is characterized in that described optical fiber has following performance:
Appoint and get continuous 22 meters in limit and test, cut-off wavelength :≤1260nm;
Maximum attenuation coefficient on 1310nm wavelength is: 0.34dB/km;
Maximum attenuation coefficient on 1550nm wavelength is: 0.20dB/km;
In the time of 1550nm wavelength single-deck 2km length, PMD Coefficient :≤0.20ps/
;
Fibre core/covering center of circle degree error :≤0.6 μ m;
Cladding diameter is: 125 ± 1 μ m;
Cladding non-circularity :≤1%;
Coat diameter is: 245 ± 10 μ m.
In the utility model, ground plane is metal, and the inner face of armour is non-coating layer with ground plane contact-making surface, therefore be also metal level, makes not only adjacent contact of ground plane, and armour carried out parallel connection, makes ground plane reach less resistance value; Standing thunderstorm hour, the caloric value in short-term of ground plane adds little, and the probability that therefore thunderbolt is blown reduces greatly; In addition, steel dress layer has also played armouring, against pressure, anti-effect of hitting.
In the utility model, the existence of the first protective layer, the second protective layer, has isolated heat widely, in thunderbolt situation, although may produce a large amount of heats, this heat, under the isolation of the first protective layer, the second protective layer, makes the work of the electric unit in cable core unaffected; In addition, thunderbolt high temperature can not enter cable core gap after inner sheath is melted, and therefore, after thunderbolt, when temperature declines, sheath still can solidify, and does not substantially affect cable performance, and it is quite convenient to safeguard.
In the utility model, messenger wire mode stranded with one-way spiral or parallel placement is arranged on outside, light unit, optical fiber in light unit also can be many, because messenger wire is nonmetallic, therefore, be subject to hardly effects of lightning, have the electric unit of metal part even if broken, light unit still can use; The undue heating of electric unit in the time of overload, can lead light unit cannot proper communication, and just because of in the utility model, light unit separates with electric unit, makes the heating of electric unit can not affect the communication of light unit; In the utility model, the outer rim of reinforcement in a straight line, has ensured the simplification of processing, meanwhile, can adopt multi reinforcements around light cell distribution, can be also around light unit sparse distribution; In the utility model, the center of light unit can also be to coincide with the center of messenger wire sheath, makes like this structure more symmetrical.
Adopt the anti-lightning strike optoelectronic composite cable for communication base station of the present utility model, carry out high voltage test, it is respectively 1,000,000 volts and 1,000 ten thousand volts, in test and after test, do not make fibre-optic proper communication in light unit, and structure before adopting, in the time of 1,000,000 volts, just normal open light signal just.
Optoelectronic composite cable of the present utility model when ground plane is parallel with cable core axis, can be produced together in oversheath extrusion process, does not need other stranded operation, and therefore, speed of production is faster, cost is lower.
Optoelectronic composite cable of the present utility model, behind the light unit having produced, reinforcement can directly complete in oversheath operation together, can be arranged and be designed by mould, carries out one-shot forming.
Therefore, the utlity model has following main beneficial effect: making is simple, speed of production is fast, ground plane resistivity is lower, maintenance cost is lower, optical communication is not affected by thunderbolt.
The utility model is not limited to above-mentioned preferred forms, should be appreciated that design of the present utility model can be by other various forms enforcement utilizations, and they drop in protection range of the present utility model equally.
Claims (10)
1. for an anti-lightning strike optoelectronic composite cable for communication base station, include cable core, inner sheath, armour, oversheath, ground plane, dowel, messenger wire, messenger wire sheath, light unit; Cable core is to be made up of multiple electric units, and each electric unit is made up of conductor and the insulating barrier that envelopes conductor; Light unit is made up of loose sleeve pipe and many optical fibers being positioned at loose sleeve pipe; Cable core is coated with the first protective layer, inner sheath extrusion molding is coated on outside the first protective layer, and inner sheath is coated with the second protective layer, and ground plane is positioned at outside the second protective layer, and armour is coated on outside ground plane, and oversheath extrusion molding is coated on outside armour; Armour is one side film steel band, and the face that armour contacts with ground plane is non-overlay film face; The first protective layer, the second protective layer are all mica tape; Messenger wire sheath is coated on outside messenger wire, and dowel one end connects messenger wire sheath, the other end connects oversheath; It is characterized in that messenger wire is positioned at outside light unit, light unit, hang to being all arranged in messenger wire sheath, messenger wire formed by multi reinforcements and the outer rim of all reinforcements on the same face of cylinder.
2. a kind of anti-lightning strike optoelectronic composite cable for communication base station according to claim 1, is characterized in that described ground plane is made up of many copper bars or aluminium bar.
3. according to claim 1 or a kind of anti-lightning strike optoelectronic composite cable for communication base station claimed in claim 2, it is characterized in that described ground plane is that the direction that favours the direction of cable core axis or be parallel to cable core axis is coated on outside the second protective layer.
4. a kind of anti-lightning strike optoelectronic composite cable for communication base station according to claim 3, while it is characterized in that described ground plane is coated on outside the second protective layer to favour the direction of cable core axis, coated pitch is 15-30 times of the second protective layer diameter.
5. a kind of anti-lightning strike optoelectronic composite cable for communication base station according to claim 4, is characterized in that described electric unit is to be distributed in cable core or in the stranded mode of one direction spiral and to be distributed in cable core in the mode of parallel placement.
6. a kind of anti-lightning strike optoelectronic composite cable for communication base station according to claim 5, it is characterized in that described the first protective layer be longitudinally or the mode of spiral be coated on outside cable core; While being longitudinally coated, the overlapping width of overlap joint is 2-4mm; When helical coated, overlap joint Duplication is 15%-30%.
7. a kind of anti-lightning strike optoelectronic composite cable for communication base station according to claim 6, the material that it is characterized in that described insulating barrier is polyvinyl chloride or high density polyethylene (HDPE) or medium density polyethylene or low smoke and zero halogen polyethylene; The material of described oversheath is high density polyethylene (HDPE) or medium density polyethylene or low smoke and zero halogen polyethylene; The material of described inner sheath is high density polyethylene (HDPE) or medium density polyethylene or low smoke and zero halogen polyethylene.
8. a kind of anti-lightning strike optoelectronic composite cable for communication base station according to claim 7, it is characterized in that described the first protective layer, the second protective layer are all synthetic mica tapes, and the thickness of mica tape is 0.1mm-2mm.
9. a kind of anti-lightning strike optoelectronic composite cable for communication base station according to claim 8, is characterized in that described reinforcement is fiberglass-reinforced plastic lever.
10. a kind of anti-lightning strike optoelectronic composite cable for communication base station according to claim 9, is characterized in that described optical fiber has following performance:
Appoint and get continuous 22 meters in limit and test, cut-off wavelength :≤1250nm;
Maximum attenuation coefficient on 1310nm wavelength is: 0.34dB/km;
Maximum attenuation coefficient on 1550nm wavelength is: 0.20dB/km;
In the time of 1550nm wavelength single-deck 2km length, PMD Coefficient :≤0.20ps/
;
Fibre core/covering center of circle degree error :≤0.6 μ m;
Cladding diameter is: 125 ± 1 μ m;
Cladding non-circularity :≤1%;
Coat diameter is: 245 ± 10 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420301141.2U CN203871073U (en) | 2014-06-07 | 2014-06-07 | Lightening-proof photoelectric composite cable for communication base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420301141.2U CN203871073U (en) | 2014-06-07 | 2014-06-07 | Lightening-proof photoelectric composite cable for communication base station |
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| Publication Number | Publication Date |
|---|---|
| CN203871073U true CN203871073U (en) | 2014-10-08 |
Family
ID=51651998
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|---|---|---|---|
| CN201420301141.2U Expired - Lifetime CN203871073U (en) | 2014-06-07 | 2014-06-07 | Lightening-proof photoelectric composite cable for communication base station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008818A (en) * | 2014-06-07 | 2014-08-27 | 吴俊� | Lightning protection photoelectric composite cable for communication base station |
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2014
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008818A (en) * | 2014-06-07 | 2014-08-27 | 吴俊� | Lightning protection photoelectric composite cable for communication base station |
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