CN105336440A - Optical fiber composite medium-voltage cable - Google Patents
Optical fiber composite medium-voltage cable Download PDFInfo
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- CN105336440A CN105336440A CN201410388124.1A CN201410388124A CN105336440A CN 105336440 A CN105336440 A CN 105336440A CN 201410388124 A CN201410388124 A CN 201410388124A CN 105336440 A CN105336440 A CN 105336440A
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Abstract
The invention relates to an optical fiber composite medium-voltage cable which is characterized that the cable comprises an outer cladding layer and an inner core, wherein the inner core comprises three cable cores and an optical cable unit, and the outer cladding layer comprises a wrapping layer, an isolated sleeve, an armor layer and an outer sheath; a fiber reinforced plastic (FRP) optical fiber reinforcement core is arranged at the center of the optical fiber unit, a group of optical fiber loose tube is extruded around the FRP optical fiber reinforcement core, and a water blocking tape and a tracking resistant sheath are extruded outside the optical fiber loose tube; and each cable core comprises a conductor and a metal shielding layer, the metal shielding layer wraps outside the conductor, and a conductor shielding layer, an insulation layer and an insulation shielding layer are sequentially extruded between the conductor and the metal shielding layer. A product simultaneously has functions of information communication and power transmission; on the condition of no increase on cable laying cost, the functions of upper-end connection of power optical fiber to home, power line monitoring, early warning and the like can be synchronously achieved, the fault response speed is increased, and the line maintenance cost is reduced.
Description
Technical field
The present invention relates to the technical field of cable, specifically a kind of optical fiber composite medium-pressure cable for electric power, communication field, particularly relates to the composite medium-pressure cable being applicable to 6 ~ 35kV intelligent grid.
Background technology
Along with going deep into further of Chinese Urbanization construction process, in June, 2009, Some Cities of China formally started " city light net " action plan, progressively enter alternative original copper wire access with light brazing filler metal, city basis broadband network structure and ability are upgraded, advance the complete photochemical evolution of Access Network, support the development of high broadband application, realize " four nets merge " that a line is registered one's residence.Tradition is single, the electric power transfer of isolating and communication routing model, just towards integrated construction Mode change, thus largely avoided because repeating the social resources waste brought of constructing, facilitating progress and the development of social every profession and trade.
In addition along with the rise of Internet of Things, market proposes the demand of renewal for the special optic fibre composite cable of many nets fusion functions such as current collection letter, electric power transfer, TV, interconnected, Internet of Things, make it to become intelligent grid build in important component.
Also optical fiber composite cable is not had in the power transmission cable used in medium voltage electricity net 3.6/6kv to the 26/35kv transmission line of existing city, not there is the function of transmitting optical signal, therefore, the optical fiber communication demand of whole intelligent medium voltage electricity net can not be met, be difficult to realize many nets such as power network, telecommunications network, Broadcasting Cable Network, the Internet and merge the demand used.
Summary of the invention
The object of the present invention is to provide a kind of optical fiber composite medium-pressure cable of improvement, it can overcome the many nets of many cables in prior art, repeats wiring, the some shortcomings that cost is higher.
To achieve these goals, technical scheme of the present invention is: a kind of optical fiber composite medium-pressure cable, it is characterized in that: described cable is made up of surrounding layer and inner core, inner core is made up of at least two cable cores and an optical cable unit, and surrounding layer is made up of belting layer, separation sleeve, armour and external sheath layer; The center of optical cable unit is provided with optical cable strengthening core, is surrounded with one group of optical fiber loose tube around optical cable strengthening core, and the outside of optical fiber loose tube is surrounded with waterstop and protective cover material; Cable core is made up of conductor and the metal screen layer be wrapped in outside conductor, is surrounded with conductor shield, insulating barrier and insulation screen successively between conductor and metal screen layer.
During use, three cable cores are stranded around center, and optical cable unit is filled in three cable core spaces as a core.All the other spaces use the gasket for packing containing water-absorbing resin to fill.Product possesses information communication and electric power transfer function simultaneously.Light unit adopts nonmetal structure direct combination at the avris of power cable forming core, product external diameter is identical with common medium-pressure power cable external diameter, when not increasing cable laying cost, synchronously can realize power optical fiber to connect and the function such as power circuit monitoring, early warning to the upper end at family, improve fault reaction speed, reduce the maintenance cost of circuit.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is the structural representation of optical cable unit of the present invention.
Embodiment:
Below in conjunction with drawings and Examples, the invention will be further described.
Label in each accompanying drawing is expressed as follows: 1 cable core, 2 optical cable units, 3FRP optical cable strengthening core, 4 optical fiber loose tubes, 5 optical fiber, 6 waterstops, 7 resistance to electric trace sheaths, 8 water blocking yarns, 9 conductors, 10 metal screen layers, 11 conductor shields, 12 insulating barriers, 13 insulation screens, 14 belting layers, 15 separation sleeves, 16 armours, 17 external sheath layers, 18 gasket for packings.
A kind of optical fiber composite medium-pressure cable of the present invention, its difference with the prior art is: described cable is made up of surrounding layer and inner core, inner core is made up of at least two cable cores and an optical cable unit, and surrounding layer is made up of belting layer, separation sleeve, armour and external sheath layer; The center of optical cable unit is provided with optical cable strengthening core, is surrounded with one group of optical fiber loose tube around optical cable strengthening core, and the outside of optical fiber loose tube is surrounded with waterstop and protective cover material; Cable core is made up of conductor and the metal screen layer be wrapped in outside conductor, is surrounded with conductor shield, insulating barrier and insulation screen successively between conductor and metal screen layer.
Inner core is made up of three cable cores and an optical cable unit, three cable cores carry out stranded around the same center of circle, optical cable unit is filled in the gap of three cable cores, three cable cores and the gasket for packing of filling between optical cable unit and surrounding layer containing water-absorbing resin.This gasket for packing water absorbent rate is high, expand rapidly when meeting water, fill cable core gap, longitudinal water-blocking is effective, and there is good tensile strength and thermal stability, not by Effect of Hyperthermic Environment, high magnification absorbent material is combined with base material evenly firmly, the water resistance of finished product is significantly improved, can use in underground by direct-burried for a long time, even if when the outermost layer of cable is impaired, the insulating barrier of internal layer also can effectively stop or delay to form water tree in conductor, strengthens electrical property and useful life.
Often organize optical fiber loose tube to be made up of 4-8 optical fiber loose tube, each optical fiber loose tube is provided with 2-12 core fibre, between FRP optical cable strengthening core and optical fiber loose tube, between optical fiber loose tube and waterstop, be filled with water blocking yarn, the use of water blocking yarn and waterstop serves protects resistance effect very well, adds durability and the reliability of optical cable unit.Conductor adopts diameter to be that the circle of φ 5.9 ~ φ 26.5mm is pressed copper conductor and made, the copper strips that metal screen layer is 0.1 ~ 0.12mm by a layer thickness is made, electric field shielding disturbs, balanced electric field, except ensureing that insulation shielding (semi-conductive screen) is earth potential (neutral point), earth fault current also can be made to pass through.Described optical cable strengthening core adopts FRP(fiberglass reinforced plastics) optical cable strengthening core, dimensional requirement φ 2.0 ~ φ 2.5mm of strengthening core, this optical cable strengthening core is a kind of structural reinforcement elements of non-metallic optical fiber cables, insensitive to electric shock, is applicable to many thunders and lightnings, rainy environment; Described protective cover material adopts resistance to electric trace sheath, and resistance to electric trace jacket thickness is 1.8 ~ 2.5mm, effectively can reduce the electric trace corrosion of forceful electric power to optical cable surface, improve the useful life of cable.
Belting layer adopts alkali-free glass band to make, wrapped thickness 0.4 ~ 0.6mm; Separation sleeve adopts polythene material to make, and the thickness of separation sleeve is 1.2 ~ 2.5mm.Armour adopts that steel band is wrapped makes outside separation sleeve, and the thickness of steel band is 0.2-0.8mm; External sheath layer adopts polyethylene, flame-proof polyethylene or low smoke and zero halogen protective cover material to make, and the thickness of external sheath layer is 2 ~ 5mm.
Armour adopts two-layer steel band gap to put up mode, and wrapped on separation sleeve, (namely the steel band of the second layer covers the gap of ground floor steel band, the steel band gap location coating fire resistant coating of the second layer), for single-core cable, select stainless steel belt, for three cores and above cable, select galvanized steel strip.
In enforcement, optical cable unit is by Loose tube twisted synthesizing cable, and layer-twisted type structure, center adopts non-metal reinforcement member FRP(fiberglass reinforced plastics), cable core fills block water cable cream and coated one deck waterstop.Each Loose tube external diameter φ 2.0 ~ φ 2.5mm, wall thickness >=0.35mm, often pipe 2 ~ 12 core fibre.
Cable core is made up of conductor and the metal screen layer be wrapped in outside conductor, is surrounded with conductor shield, insulating barrier and insulation screen successively between conductor and metal screen layer.Conductor adopts circle to press copper conductor, and conductor structure is closely knit, under same cross-sectional area of conductor is long-pending, presses rear conductor diameter and reduces about 10%, thus reduce product external diameter, is convenient to install, lay.Conductor shield, insulating barrier, insulation screen adopt the three-layer co-extruded mode of production, by conductor screen material, cross-linked polyethylene insulating material, insulation shielding material is disposable is coated on compact conductor, adopt squash type production technology, thus trilaminate material is closely linked, avoid the secondary pollution of insulating material simultaneously, ensure that the processing quality of product.
For three-core cable, after metallic shield, carry out stranding, simultaneously wrapped alkali-free glass band, wrapped thickness 0.4 ~ 0.6mm.Glass fiber tape environment-protecting asepsis, have high temperature resistant and fire protecting performance, heat-proof quality is excellent.In cabling procedure, three cable cores are stranded around center, and optical cable unit is filled in three cable core spaces as a core.Three cable cores carry out stranded around the same center of circle, ensure that the balance between adjacent cable line and stability, are applicable to realizing many nets such as power network, telecommunications network, Broadcasting Cable Network, the Internet and merge the demand used.Optical cable unit is filled in the gap of three cable cores, three cable cores and the gasket for packing of filling between optical cable unit and surrounding layer containing water-absorbing resin.
Separation sleeve, adopt the polythene material adapted with insulation property, serviceability temperature, polyethylene has good conduction and mechanical performance, has the effect of water-blocking moistureproof simultaneously.Extruding thickness is 1.2 ~ 2.5mm.
Armour, adopt two lamellar spacings to put up mode wrapped on separation sleeve, according to different size, thickness selects 0.2mm, 0.5mm, 0.8mm steel band respectively.For single-core cable, select stainless steel belt; For three-core cable, select galvanized steel strip.Steel-tape armouring, one is to resist impact, and two is to intercept flame.
Oversheath employing extrudes mode and is extruded on steel-tape armouring layer, thickness 2 ~ 5mm.According to different needs, polyethylene, flame-proof polyethylene goods low smoke and zero halogen protective cover material can be selected.Oversheath plays a protective role.
Product possesses information communication and electric power transfer function simultaneously.Light unit adopts nonmetal structure direct combination at the avris of power cable forming core, product external diameter is identical with common medium-pressure power cable external diameter, when not increasing cable laying cost, synchronously can realize power optical fiber to connect and the function such as power circuit monitoring, early warning to the upper end at family, improve fault reaction speed, reduce the maintenance cost of circuit.
Claims (8)
1. an optical fiber composite medium-pressure cable, is characterized in that: described cable is made up of surrounding layer and inner core, and inner core is made up of at least two cable cores and an optical cable unit, and surrounding layer is made up of belting layer, separation sleeve, armour and external sheath layer; The center of optical cable unit is provided with optical cable strengthening core, is surrounded with one group of optical fiber loose tube around optical cable strengthening core, and the outside of optical fiber loose tube is surrounded with waterstop and protective cover material; Cable core is made up of conductor and the metal screen layer be wrapped in outside conductor, is surrounded with conductor shield, insulating barrier and insulation screen successively between conductor and metal screen layer.
2. a kind of optical fiber composite medium-pressure cable according to claim 1, it is characterized in that: often organize optical fiber loose tube and be made up of 4-8 optical fiber loose tube, each optical fiber loose tube is provided with 2-12 core fibre, is filled with water blocking yarn between optical cable strengthening core and optical fiber loose tube, between optical fiber loose tube and waterstop.
3. a kind of optical fiber composite medium-pressure cable according to claim 1, is characterized in that: conductor adopts diameter to be that the circle of (please supplement) is pressed copper conductor and made, and the copper strips that metal screen layer is 0.1 ~ 0.12mm by a layer thickness is made.
4. a kind of optical fiber composite medium-pressure cable according to claim 1, is characterized in that: belting layer adopts alkali-free glass band to make, wrapped thickness 0.4 ~ 0.6mm; Separation sleeve adopts polythene material to make, and the thickness of separation sleeve is 1.2 ~ 2.5mm.
5. a kind of optical fiber composite medium-pressure cable according to claim 1, is characterized in that: armour adopts that steel band is wrapped makes outside separation sleeve, and the thickness of steel band is 0.2-0.8mm; External sheath layer adopts polyethylene, flame-proof polyethylene goods low smoke and zero halogen protective cover material is made, and the thickness of external sheath layer is 2 ~ 5mm.
6. a kind of optical fiber composite medium-pressure cable according to claim 1, it is characterized in that: it is wrapped on separation sleeve that armour adopts two-layer steel band gap to put up mode, for single-core cable, selects stainless steel belt, for three cores and above cable, select galvanized steel strip.
7. a kind of optical fiber composite medium-pressure cable according to claim 1, it is characterized in that: inner core is made up of three cable cores and an optical cable unit, three cable cores carry out stranded around the same center of circle, optical cable unit is filled in the gap of three cable cores, three cable cores and the gasket for packing of filling between optical cable unit and surrounding layer containing water-absorbing resin.
8. a kind of optical fiber composite medium-pressure cable according to claim 2, is characterized in that: described optical cable strengthening core adopts FRP(fiberglass reinforced plastics) optical cable strengthening core, the dimensional requirement (please supplement) of strengthening core; Described protective cover material adopts resistance to electric trace sheath, and resistance to electric trace jacket thickness is 1.8 ~ 2.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410388124.1A CN105336440A (en) | 2014-08-08 | 2014-08-08 | Optical fiber composite medium-voltage cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410388124.1A CN105336440A (en) | 2014-08-08 | 2014-08-08 | Optical fiber composite medium-voltage cable |
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| CN105336440A true CN105336440A (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410388124.1A Pending CN105336440A (en) | 2014-08-08 | 2014-08-08 | Optical fiber composite medium-voltage cable |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107845445A (en) * | 2017-11-27 | 2018-03-27 | 深圳市特发信息股份有限公司 | A kind of optical fiber composite medium-pressure cable and cable In-Line Temperature Measure System |
| CN110010292A (en) * | 2019-05-13 | 2019-07-12 | 远东电缆有限公司 | Rail traffic intelligent monitoring looped network cable |
| CN111584149A (en) * | 2020-05-29 | 2020-08-25 | 深圳市特发信息股份有限公司 | Optical cable end protection prosthesis of optical fiber composite cable and manufacturing method |
| CN115862950A (en) * | 2022-12-12 | 2023-03-28 | 天津中间件新工科技有限公司 | Photoelectric communication composite cable |
Citations (4)
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| CN2691021Y (en) * | 2004-03-29 | 2005-04-06 | 江苏亨通电力电缆有限公司 | Optical fiber temperature detection defect early warning composite power cable |
| CN202383339U (en) * | 2011-12-27 | 2012-08-15 | 浙江汉信光缆有限公司 | Loosely shielded layer-stranding cable |
| CN202502282U (en) * | 2012-03-23 | 2012-10-24 | 珠海汉胜科技股份有限公司 | Loose tube layer-twisted full-dry cable |
| JP2014116254A (en) * | 2012-12-12 | 2014-06-26 | Hitachi Metals Ltd | Multicore combined-cable formed by building power cables and optical cables |
-
2014
- 2014-08-08 CN CN201410388124.1A patent/CN105336440A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2691021Y (en) * | 2004-03-29 | 2005-04-06 | 江苏亨通电力电缆有限公司 | Optical fiber temperature detection defect early warning composite power cable |
| CN202383339U (en) * | 2011-12-27 | 2012-08-15 | 浙江汉信光缆有限公司 | Loosely shielded layer-stranding cable |
| CN202502282U (en) * | 2012-03-23 | 2012-10-24 | 珠海汉胜科技股份有限公司 | Loose tube layer-twisted full-dry cable |
| JP2014116254A (en) * | 2012-12-12 | 2014-06-26 | Hitachi Metals Ltd | Multicore combined-cable formed by building power cables and optical cables |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107845445A (en) * | 2017-11-27 | 2018-03-27 | 深圳市特发信息股份有限公司 | A kind of optical fiber composite medium-pressure cable and cable In-Line Temperature Measure System |
| CN110010292A (en) * | 2019-05-13 | 2019-07-12 | 远东电缆有限公司 | Rail traffic intelligent monitoring looped network cable |
| CN111584149A (en) * | 2020-05-29 | 2020-08-25 | 深圳市特发信息股份有限公司 | Optical cable end protection prosthesis of optical fiber composite cable and manufacturing method |
| CN115862950A (en) * | 2022-12-12 | 2023-03-28 | 天津中间件新工科技有限公司 | Photoelectric communication composite cable |
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Application publication date: 20160217 |