CN102157237B - Multi-phase optical fiber embedded power cable - Google Patents
Multi-phase optical fiber embedded power cable Download PDFInfo
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- CN102157237B CN102157237B CN 201010109281 CN201010109281A CN102157237B CN 102157237 B CN102157237 B CN 102157237B CN 201010109281 CN201010109281 CN 201010109281 CN 201010109281 A CN201010109281 A CN 201010109281A CN 102157237 B CN102157237 B CN 102157237B
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Images
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
- G02B6/4415—Cables for special applications
- G02B6/4416—Heterogeneous cables
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Insulated Conductors (AREA)
- Communication Cables (AREA)
Abstract
The invention relates to a multi-phase optical fiber embedded power cable. The power cable comprises an optical fiber cable, a plurality of cable assemblies for clamping the optical fiber cable, filler yarns, a lapped layer and an outer sheath, wherein the filler yarns surround the optical fiber cable and the cable assemblies; the lapped layer wraps up the optical fiber cable, the cable assemblies and the filler yarns; the outer sheath surrounds the lapped layer; the cable assemblies comprise copper core conductors and insulating layers wrapping up the copper core conductors; the optical fiber cable comprises a fiber reinforced composite strengthened core, a plurality of optical fibers for clamping the strengthened core, filled strips, an aramid fiber layer and an outer sheath; the filled strips surround the strengthened core and the optical fibers; the aramid fiber layer wraps up the fiber reinforced composite strengthened core, the optical fibers and the polyethylene filled strips; and the outer sheath covers the aramid fiber layer. The invention provides low-cost and convenient schemes such as integration of optical and power cables into one and one cable with multiple purposes for fiber to the home, four networks in one (power, telephone, television and computer), ammeter remote metering and interaction with power consumers of the smart grid.
Description
Technical field
Patent of the present invention relates to a kind of Special power cable, refers in particular to multi-phase optical fiber embedded power cable, is used for 400v low-voltage power supply network circuit.
Background technology
In intelligent grid is built, need to strengthen the customer charge measure monitor of electrical network terminal (400V power supply network) and the technological means of information communication.
Because the electric power carrier communication technology of realizing at the conventional electric power cable at present because of its low speed, low communication success rate, low reliability, can not satisfy intelligent grid to the large capacity real time information communication needs of electric power remote control, metering, monitoring.
In informationized society was built, along with phone, computer, TV enter huge numbers of families, the enterprise that is engaged in telecommunications, broadband, broadcasting and TV service operation all needed to lay corresponding circuit house lead in.Occur that cable tubing excavates repeatedly, the engineering repeated construction, bring worry to the user.
Yet existing traditional fiber optic cable and composite power cable have following technical problem:
Since the mechanical strength of optical fiber very a little less than, optical fiber is damaged easily.Therefore, optical fiber being contained in one has in the metallic conduit of high strength and small curvature radius.But the metal catheter of this high strength and small curvature radius may destroy insulating performance of cable, thereby dielectric strength is reduced.
On the other hand, existing fiber optic cable has adopted in addition and has been filled with the ointment fixed fiber in the conduit, but in actual use, runs into the situation ointment such as cable load high temperature and melts easily, and fiber optic cable and cable are caused adverse consequences.Make troubles to site operation.
Simultaneously, the working temperature of general communication fiber optic cable is about 80 ℃.And the temperature when cable is operated at full capacity is about 90 ℃.Therefore, when adopting the work of general communication optical fiber composite cable, the easy ageing failure of fiber optic cable wherein.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of multi-phase optical fiber embedded power cable, and it has, and electric power transmits and the fiber broadband communication capacity, the construction demand of satisfied " intelligent grid " and " four networks one platform, Fiber to the home ".
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: multi-phase optical fiber embedded power cable, it comprises some cable assembly of fiber optic cable, grip optical fiber cable, around the gasket for packing of described fiber optic cable and cable assembly, wrap up the lapping layer of described fiber optic cable, cable assembly and gasket for packing and around the oversheath of described lapping layer; Described cable assembly comprises the insulating barrier of copper core conductor and parcel copper core conductor; Described this fiber optic cable comprises the aramid fiber layer of some optical fiber of fibre reinforced composites strengthening core, the described fibre reinforced composites strengthening core of clamping, the polyethylene filling tape that centers on described fibre reinforced composites strengthening core and some optical fiber, parcel described fibre reinforced composites strengthening core, optical fiber and polyethylene filling tape and covers the outer sheath of described aramid fiber layer.
The present invention compares with existing 400v low pressure conventional electric power cable, by connecting relevant optoelectronic device, has the following advantages: this cable has the specific functions such as electric power transmission and optical fiber communication.Described this fiber optic cable has the nonmetal high temperature resistance and high strength characteristics of dry type.
Patent of the present invention is used for intelligent grid, can significantly improve the level of informatization of electrical network.For the information communication of electrical network, Long-distance Control etc. provide strong means.And can be " Fiber to the home ", " four networks one platform (electric power, phone, TV, computer) ", " water power coal table long-distance metering ", " with the power consumer two-way interaction " provide low-cost, easily " optical cable unification ", " multi-purpose " means.
Description of drawings
Fig. 1 is the sectional view of fiber optic cable among the present invention.
Fig. 2 is the sectional view of the embodiment of the invention one multi-phase optical fiber embedded power cable.
Fig. 3 is the sectional view of the embodiment of the invention two multi-phase optical fiber embedded power cables.
Embodiment
In order better patented technology scheme of the present invention to be understood, below by instantiation and cooperate accompanying drawing to be elaborated.
A kind of fiber optic cable 101 (such as Fig. 1), this fiber optic cable comprise that glass fibre strengthens high-temperature resin composite material (FRP) strengthening core 2, some optical fiber 1 adjacent with glass fibre enhancing high-temperature resin composite material (FRP) strengthening core, strengthens the aramid fiber layer 4 of high-temperature resin composite material (FRP) strengthening core and described optical fiber and cover the outer sheath 5 of described aramid fiber layer around described glass fibre.Be provided with filling tape 3 in the described aramid fiber layer.Described filling tape material is polyethylene.The coating material of described sheath 5 materials and optical fiber 1 is polyimides or polyvinyl fluoride or high temperature polyamide.
FRP--(Fiberglass-Reinforced Plastics) fibre-reinforced plastics is divided into the glass fiber reinforced composite plastics according to the fiber difference that adopts, and carbon fiber strengthens composite plastic, and boron fibre strengthens composite plastic etc.; Glass fibre strengthens high-temperature resin composite material (FRP) through 20 years of researches and accumulation, and having basically formed can be at resin system and the composite material of 80～300 ℃ of temperature ranges uses.FRP has following characteristic: (1) high-strength light, and relative density only has 1/4 ~ 1/5 of carbon steel, but hot strength is approaching, even surpass carbon steel.(2) corrosion resistance and good has preferably resistivity to acid, alkali, salt and multiple oils and the solvent of atmosphere, water and general concentration.(3) good electrical property is good insulating material, is used for making insulator.Still can protect good dielectricity under the high frequency.(4) hot property is good, and the FRP thermal conductivity is low, only has 1/100 ~ 1/1000 of metal, is good heat-insulating material.(5) select fire resistant resin, make the long-term work temperature at 200 ~ 300 ℃.
The aramid fiber full name is " PPTA ", English is Aramid fiber (commodity of E.I.Du Pont Company are called Kevlar), be a kind of novel high-tech synthetic fibers, have superhigh intensity, high-modulus and high temperature resistant, acid-fast alkali-proof, the premium properties such as lightweight, its intensity is 5～6 times of steel wire, modulus is steel wire or glass fibre 2～3 times, toughness is 2 times of steel wire, and weight only is about 1/5 of steel wire, under 560 ℃ temperature, do not decompose, do not melt.It has good insulating properties and ageing resistace, has very long life cycle.
Polyvinyl fluoride (F4, PTFE) has a series of good serviceabilities: high temperature resistant-long-term serviceability temperature 200 ~ 260 degree, low temperature resistant-still soft when-100 spend; Corrosion-resistant-ability chloroazotic acid and all organic solvents; The aging life-span of the best in weather-plastics; Nonhazardous-have physiology inertia; Excellent electric property is desirable C class F insulating material F.
Polyimides (PI) is heat-resistant polymer, keeps main physical property 550 ℃ of energy short-terms, can use under near 330 ℃ for a long time.Polyimides has good dielectric property, and dielectric constant is about 3.4, and dielectric strength is 100-300KV/mm, and polyimides is self-extinguishing polymer, and the rate of being fuming is low.
Embodiment one
Consult shown in Figure 2, the present invention includes a kind of multi-phase optical fiber embedded power cable, it comprises some cable assembly of fiber optic cable 101, grip optical fiber cable 101, around the macromolecular material gasket for packing 104 of described fiber optic cable 101 and cable assembly, around the lapping layer 105 of described fiber optic cable 101 and cable assembly and macromolecular material gasket for packing 104, around the oversheath 108 of lapping layer 105; Among the present invention, described copper core cable assembly is preferably 3 groups, fiber optic cable 101 can be clamped.Described cable assembly comprises the XLPE insulating barrier 103 of copper core conductor 102 and parcel copper core conductor 102.
The concrete Fig. 1 that consults, the fiber optic cable of the multicore special construction that patent of the present invention adopts, comprising galss fiber reinforced resin composite material (FRP) strengthening core 2, the painted naked fibre of resistant to elevated temperatures list (many) mould or the tightly packaged fiber 1 of parcel strengthening core 2, around the polyethylene filling tape 3 of fibre reinforced composites (FRP) strengthening core 2 and optical fiber 1, the multiply aramid fiber 4 of parcel polyethylene filling tape 3 and polyimides or polyvinyl fluoride or the high temperature polyamide oversheath of parcel aramid fiber 4.In the present embodiment, optical fiber 1 number can have one or more, and preferably four, these four optical fiber 1 are with fibre reinforced composites (FRP) strengthening core 2 centering on tightly.
Described XLPE insulating barrier 103 can be cross-linked polyolefin or the crosslinked polyetylene insulated layer that wraps up described copper core cable conductor 102,
Cross-linked polyolefin or crosslinked polyetylene insulated layer are to adopt the water-bath crosslinking process to make the polymer generation crosslinked, change network structure into by linear structure.Water-bath is crosslinked to be as well known to those skilled in the art.XLPE is the abbreviation of crosslinked polyethylene English name, and polyethylene is a kind of molecular structure of linearity, at high temperature very easily distortion.The crosslinked polyethylene process makes it become a kind of network structure.Even this structure at high temperature has very strong non-deformability too.The XLPE cable material is a kind of polyethylene that contains organic peroxide.This peroxide with polyethylene generation chemical reaction, makes the thermoplastic polyethylene become the polyethylene of thermosetting (elastomer), i.e. XLPE under HTHP and inert gas environment.XLPE cable has splendid electric property.Dielectric loss is all less than paper insulation and PVC insulation, and the electric capacity of XLPE cable is also little.So in having effective star grounding system, can not reduce charging current and earth fault current yet.Very easily laying is another advantage of XLPE cable.XLPE cable has a less bending radius, and it is lighter and comparatively simple terminal processes arranged than other similar cables.Because XLPE cable is oil-containing not, so when XLPE Cables, need not consider route, there is not situation about can't lay owing to drop down oil yet.Splendid anti-aging characteristic and superpower heat-resistant deforming have determined that twisted polyethylene cable can allow large electric current to pass through under normal operating temperature (90 ℃), short trouble (130 ℃) and short circuit (250 ℃) condition.
Gasket for packing 104 around described fiber optic cable 101 and cable assembly is polypropylene high molecular material.
Lapping layer (105) around described fiber optic cable 101 and cable assembly and gasket for packing 104 is high temperature resistant nonwoven fabric belts material.
Described copper core cable conductor 102 is by single copper core or strand copper wire is stranded forms.
Described oversheath 108 is by the extrusion molding of low-smoke bittern-free highly fire-proof polyolefine material.
The special fiber optic cable of multicore by said structure and material consist of has the characteristics of " the nonmetal high temperature resistance and high strength of dry type ".The optical fiber communication that is particularly suitable in the 400v low-voltage environment is used.
Consult Fig. 2, the optical fibre embedded copper core cross linked insulation structure lv power cable of many copper core involved in the present invention (being the crosslinked non-sheathed structure lv power cable of heterogeneous optical fiber embedding type copper core), wherein 102 many copper core (heterogeneous electricity) cable conductors of serving as reasons single (many) strand copper cash compositions.103 is the insulating barrier that is made of XLPE.Consist of the copper core cable assembly by 102 and 103.104 is the gasket for packing that is made of polypropylene material.105 is the high temperature nonwoven fabric belts.108 is low-smoke bittern-free highly fire-proof polyolefin oversheath.Wherein the fiber optic cable of multicore special construction is embedded between three cable assembly.
Embodiment two
Consult shown in Figure 3, present embodiment and embodiment one different being: described lapping layer 105 ' and oversheath 108 ' between be provided with around lapping layer 105 ' polyethylene inner sheath ' 106 and around polyethylene inner sheath 106 ' metal armour sheath 107 '.
Concrete, a kind of multi-phase optical fiber embedded power cable, it comprise fiber optic cable 101 ', grip optical fiber cable 101 ' some cable assembly, around described fiber optic cable 101 ' and the gasket for packing 104 of cable assembly ', the described fiber optic cable 101 of parcel ', cable assembly and gasket for packing 104 ' lapping layer 105 ' and around described lapping layer 105 ' oversheath 108 '; Described cable assembly comprise copper core conductor 102 ' and parcel copper core conductor 102 ' XLPE insulating barrier 103 '; Described this fiber optic cable 101 ' comprise the aramid fiber layer 4 of some optical fiber 1 of fibre reinforced composites strengthening core 2, the described fibre reinforced composites strengthening core 2 of clamping, the polyethylene filling tape 3 that centers on described fibre reinforced composites strengthening core 2 and some optical fiber 1, parcel described fibre reinforced composites strengthening core 2, optical fiber 1 and polyethylene filling tape 3 and cover the outer sheath 5 of described aramid fiber layer; Described lapping layer 105 ' and oversheath 108 ' between be provided with around lapping layer 105 ' polyethylene inner sheath ' 106 and around polyethylene inner sheath 106 ' metal armour sheath 107 '.Cable assembly described in the present invention is preferably 3 groups, fiber optic cable 101 can be clamped.
Fiber optic cable 101 has adopted the dry construction of non-ointment type among the present invention, to be fit to cable construction and electric power hot operation environmental requirement.
Wherein, fiber optic cable has adopted resistant to elevated temperatures optical fiber cable design of material.Described material is polyimides or polyvinyl fluoride or high temperature polyamide.
Wherein, fiber optic cable adopts non-metallic structural design.To avoid the harmful effect to the electric power safety operation.
Wherein, fiber optic cable adopts the design of multiple-core optical fiber structure.To satisfy the electric intelligent requirement.Described multiple-core optical fiber, be 2 cores and more than, by single mode or multimode or single multimode mix, painted naked fibre or hard-pressed bale fibre form.
Wherein, fiber optic cable has adopted high-intensity design of material.Described material is aramid fiber and polyimides or polyvinyl fluoride or high temperature polyamide.
The above-mentioned cross linked insulation layer that is coated on outside the copper core conductor is the halogen-free type environment-friendly materials.Wherein, described material is cross-linked polyolefin or crosslinked polyethylene.
Oversheath has adopted the design of low-smoke bittern-free highly fire-proof type macromolecular material in the above-mentioned cable.Wherein, described material is the low-smoke bittern-free highly fire-proof polyolefin.
Patent of the present invention is compared with existing 400v low pressure conventional electric power cable, by connecting relevant optoelectronic device, has the following advantages: this cable has the multi-functionals such as electric power transmission and optical fiber communication.
Patent of the present invention is used for intelligent grid, can significantly improve the level of informatization of electrical network.For the information communication of electrical network, Long-distance Control etc. provide strong means.And can be " Fiber to the home ", " four networks one platform (electric power, phone, TV, computer) ", " water power coal table long-distance metering ", " with the power consumer two-way interaction " provide low-cost, easily " optical cable unification ", " multi-purpose " means.
Above-described embodiment just lists expressivity principle of the present invention and effect is described, but not is used for restriction the present invention.Any personnel that are familiar with technique all can without departing from the spirit and scope of the present invention, make amendment to above-described embodiment.Therefore, the scope of the present invention should be listed such as claims.
Claims (10)
1. multi-phase optical fiber embedded power cable is characterized in that: this multi-phase optical fiber embedded power cable comprises some cable assembly of fiber optic cable (101), grip optical fiber cable (101), around the gasket for packing (104) of described fiber optic cable (101) and cable assembly, wrap up the lapping layer (105) of described fiber optic cable (101), cable assembly and gasket for packing (104) and the oversheath (108) that centers on described lapping layer (105); Described cable assembly comprises the insulating barrier (103) of copper core conductor (102) and parcel copper core conductor (102); Described this fiber optic cable (101) comprises fibre reinforced composites strengthening core (2), some optical fiber (1) of the described fibre reinforced composites strengthening core of clamping (2), filling tape (3) around described fibre reinforced composites strengthening core (2) and some optical fiber (1), wrap up described fibre reinforced composites strengthening core (2), the aramid fiber layer (4) of optical fiber (1) and filling tape (3) and cover the outer sheath (5) of described aramid fiber layer.
2. multi-phase optical fiber embedded power cable as claimed in claim 1 is characterized in that: be provided with between described lapping layer (105) and the oversheath (108) around the inner sheath (106) of lapping layer (105) and the metal armour sheath (107) that centers on inner sheath (106).
3. a kind of multi-phase optical fiber embedded power cable as claimed in claim 1, it is characterized in that: described copper core conductor (102) is comprised of single or strand copper wire.
4. a kind of multi-phase optical fiber embedded power cable as claimed in claim 1, it is characterized in that: the material of described insulating barrier (103) is cross-linked polyolefin or crosslinked polyethylene.
5. a kind of multi-phase optical fiber embedded power cable as claimed in claim 1 is characterized in that: described gasket for packing (104) is polypropylene high molecular material.
6. a kind of multi-phase optical fiber embedded power cable as claimed in claim 1, it is characterized in that: described lapping layer (105) is high temperature resistant nonwoven fabric belts material.
7. a kind of multi-phase optical fiber embedded power cable as claimed in claim 2 is characterized in that: described metal armour sheath (107) is aluminium alloy or strip material.
8. a kind of multi-phase optical fiber embedded power cable as claimed in claim 1, it is characterized in that: described oversheath (108) is the low-smoke bittern-free highly fire-proof polyolefine material.
9. a kind of multi-phase optical fiber embedded power cable as claimed in claim 1 is characterized in that: the fibre reinforced composites strengthening core (2) that described this fiber optic cable comprises is that glass fibre strengthens the high-temperature resin FRP Composite Material.
10. a kind of multi-phase optical fiber embedded power cable as claimed in claim 1, it is characterized in that: described sheath (5) material is polyimides or polyvinyl fluoride or high temperature polyamide.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010109281 CN102157237B (en) | 2010-02-11 | 2010-02-11 | Multi-phase optical fiber embedded power cable |
| PCT/CN2010/075554 WO2011097869A1 (en) | 2010-02-11 | 2010-07-29 | Multi-phase electric optical fiber embedded type power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010109281 CN102157237B (en) | 2010-02-11 | 2010-02-11 | Multi-phase optical fiber embedded power cable |
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| Publication Number | Publication Date |
|---|---|
| CN102157237A CN102157237A (en) | 2011-08-17 |
| CN102157237B true CN102157237B (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010109281 Active CN102157237B (en) | 2010-02-11 | 2010-02-11 | Multi-phase optical fiber embedded power cable |
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| Country | Link |
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| CN (1) | CN102157237B (en) |
| WO (1) | WO2011097869A1 (en) |
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| CN103325456A (en) * | 2013-06-26 | 2013-09-25 | 金陵科技学院 | Multi-functional cable |
| CN104299684A (en) * | 2013-07-15 | 2015-01-21 | 昆山联滔电子有限公司 | A cable |
| CN103854791B (en) * | 2014-02-24 | 2016-08-24 | 安徽华源电缆集团有限公司 | A kind of small size environmental protection oil-resisting type railway locomotive cable |
| CN104882214A (en) * | 2014-02-27 | 2015-09-02 | 安徽新科电缆集团股份有限公司 | Armored copper-core fiber low-pressure composite cable |
| CN103903797A (en) * | 2014-03-03 | 2014-07-02 | 安徽慧艺线缆集团有限公司 | Interference-resistant and fire-proof power cable |
| CN103887000A (en) * | 2014-03-31 | 2014-06-25 | 陈迎霞 | Light photoelectric composite aluminium alloy power cable |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN102157237A (en) | 2011-08-17 |
| WO2011097869A1 (en) | 2011-08-18 |
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