CN110164608A - A kind of split conductor based on the compound sub-conductor of small bore optical fiber - Google Patents
A kind of split conductor based on the compound sub-conductor of small bore optical fiber Download PDFInfo
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- CN110164608A CN110164608A CN201910404881.6A CN201910404881A CN110164608A CN 110164608 A CN110164608 A CN 110164608A CN 201910404881 A CN201910404881 A CN 201910404881A CN 110164608 A CN110164608 A CN 110164608A
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Classifications
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- 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
-
- 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
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/005—Power cables including optical transmission elements
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Abstract
The present invention provides a kind of split conductors based on the compound sub-conductor of small bore optical fiber, comprising: the sub-conductor of the compound sub-conductor of optical fiber and at least two non-fiber units with fiber unit;The sectional area of the compound sub-conductor of optical fiber is less than the sectional area of each sub-conductor;When the number of sub-conductor is two, the compound sub-conductor of optical fiber and two root conducting wires are arranged in parallel in a plane according to default spacing, and the compound sub-conductor of optical fiber is equal with the spacing of two root conducting wires;When the number of sub-conductor is greater than two, each sub-conductor is arranged in parallel according to default spacing and is respectively perpendicular each vertex by a regular polygon, and the compound sub-conductor of optical fiber is and parallel with each sub-conductor by the center of regular polygon.The application has the insulating space for being substantially reduced the remaining cable disk of the compound sub-conductor of light and the size of connector box and occupancy, reduce the quantity of remaining cable disk and connector box, engineering design and construction difficulty is reduced, the beneficial effect of fiber optic communication safety under the mal-conditions such as sleet and snow ice is improved.
Description
Technical field
The present invention relates to power Transmission technical field more particularly to a kind of divisions based on the compound sub-conductor of small bore optical fiber
Conducting wire.
Background technique
Overhead transmission line (abbreviation route) is the important component of power grid.Route generally has optical fiber communication function,
Wherein the distribution network line of the low-voltage-grades such as 35kV generally only conveys the aerial condutor (abbreviation conducting wire) of electric energy without prevents
The aerial earth wire (abbreviation ground wire) of thunder, so generally replacing one using an optical fiber composite phase (OPPC) containing fiber unit
Mutually conventional conducting wire, realizes optical fiber communication function while conveying electric energy;The main electricity of 110kV (66kV) and above
The generally existing conducting wire in cable road has ground wire again, generally uses optical fiber composite overhead ground wire (OPGW) generation containing fiber unit
For the ground wire of a routine, optical fiber communication function is realized while realizing lightning protection function.
Optical fiber composite overhead ground wire (OPGW) is used for the main power network line of 110kV (66kV) and above
Disadvantage and for 110kV (66kV) and above the main power network line of main power network line use optical fiber composite phase
(OPPC) refractory gold ores are as follows:
1, the shortcomings that optical fiber composite overhead ground wire (OPGW)
OPGW has a lightning protection function and the demand without conveying electric energy, therefore its sectional area is designed smaller, with conventional ground
Line is close, such as: 80mm2、120mm2, much smaller than the wire cross-section area of conveying electric energy, such as: 400mm2、630mm2、720mm2、
810mm2.The OPGW of small bore has apparent advantage in engineering design, construction, but lacks in operation there is also biggish
Point, such as: icing causes its tension and arc sag to increase under sleet and snow ice meteorological condition, electric discharge between Yi Yinqi conducting wire-OPGW,
Line tripping and line outage;And the lesser sectional area of OPGW and direct contact discharge electric arc causes its point of discharge significantly to rise
Temperature, the mechanical strength sharp fall of the regional area, tension increases and mechanical strength declines two factor collective effects easily
It causes OPGW to break, seriously threatens route operational safety and fiber optic communication safety.
2, the difficult point of optical fiber composite phase (OPPC)
Disadvantages mentioned above based on OPGW, fiber unit, which is compounded in composition optical fiber composite phase (OPPC) in conducting wire, just to be become
Compare reasonable fiber optic communication alternative solution.The mode that OPPC is applied to the split conductor of main power network line is generally as follows: with one
Root OPPC substitutes a root conducting wire of split conductor, its sectional area (outer diameter), the weight of unit length, stress-sag characteristic
Etc. parameters it is identical as other sub-conductors, and arrangement routinely forms the split conductor of a phase together with other sub-conductors.
Undeniably, since the sectional area of OPPC is identical as conventional sub-conductor, it is much higher than the sectional area of OPGW, therefore in the runtime
Between, OPPC broken string especially occurs during ice damage, threatens the probability of fiber optic communication safety that can be greatly lowered;But OPPC for many years
In the popularization almost blank wall of 110kV (66kV) and the main power network line of above, the reason is as follows that:
(1) it is one of the resistance that OPPC is promoted and applied that the remaining cable disk of OPPC and connector box, which occupy biggish insulating space,.With
OPGW is similar, and fused fiber splice needs OPPC to retain the remaining cable of certain length and is wound into disk, is fixed on side of wire, general outstanding
It hangs on the downside of wire jumper insulator;Fused fiber splice is placed in connector box, the conducting wire that must also hang, be fixed below wire jumper insulator
Side.1. OPGW is generally in ground potential, therefore the attachmentes such as its remaining cable disk and connector box are easily fastened to earth wire support etc.;And
And the sectional area of OPGW is smaller, its remaining cable disk diameter is smaller, and the insulating space of occupancy is corresponding also smaller, therefore not will cause generally
The problems such as insulation distance of route is insufficient.2. OPPC is generally in high-voltage potential, therefore the attachmentes such as its remaining cable disk and connector box
It can only be fixed on side of wire, it is limited for position that is fixed or hanging and space;And the sectional area (outer diameter) of OPPC is larger, it
Remaining cable disk diameter and weight are larger, and the insulating space of occupancy is accordingly also larger, therefore the remaining cable disk and connector box of OPPC are suspended on jump
Side of wire below line insulator, the problems such as easily causing the phase conductor insufficient to the insulation distance of steel tower in windage yaw, especially
For the OPPC improvement project of working line, the problem is especially prominent, so that transformation difficulty and workload are excessive, this is main electricity
The maximum resistance of cable road popularization OPPC.
(2) difficulty of construction and larger workload of OPPC is the two of the resistance that OPPC is promoted and applied.The unwrapping wire of OPGW is different
In conventional ground wire, every disk line needs independent tension stringing, and cannot be similar to the routinely continuous tension stringing of tape splicing sleeve, this is just
OPGW unwrapping wire is caused to need to compare frequent transitions tension field and traction field;And there is the outer diameter of the OPPC of transmission of electricity function to be much larger than
OPGW, therefore the length of a disk OPPC is less than the length of a disk OPGW, such as: OPGW is up to 5km/ disk, OPPC only 2~3km/ disk,
This just makes to need more frequent transition when OPPC unwrapping wire, and leads to more fused fiber splices and more remaining cable disks and connector
Box, the difficulty of construction and workload for making OPPC increase the postrun maintenance workload of route much larger than OPGW.
Therefore, the remaining cable disk of OPPC and connector box occupy that insulating space is larger, quantity is more and the unwrapping wire of OPPC etc. is applied
The problem of work difficulty and larger workload is current technical problem urgently to be resolved.
Summary of the invention
In order to solve defect in the prior art, the present invention provides a kind of dividing based on the compound sub-conductor of small bore optical fiber
Conducting wire is split, cable disk and connector box occupy more than size and weight, reduction with the remaining cable disk for being substantially reduced the compound sub-conductor of optical fiber
Insulating space, the quantity of cable disk and connector box, the design that engineering is greatly lowered, difficulty of construction and workload, rush more than reduction
Entering light fiber communication unit application electricity under the mal-conditions such as the split conductor of main power grid overhead transmission line and raising sleet and snow ice
The beneficial effect of net fiber optic communication safety.
To achieve the goals above, a kind of split conductor based on the compound sub-conductor of small bore optical fiber provided by the invention,
The split conductor based on the compound sub-conductor of small bore optical fiber includes: the compound sub-conductor of optical fiber and extremely with fiber unit
The sub-conductor of few two non-fiber units;
The sectional area of the compound sub-conductor of optical fiber is less than the sectional area of each sub-conductor;
When the number of the sub-conductor is two, the compound sub-conductor of optical fiber and two sub-conductors are according to default
Spacing is arranged in parallel in a plane, and the compound sub-conductor of the optical fiber is equal with the spacing of two sub-conductors;
When the number of the sub-conductor is greater than two, each sub-conductor is arranged in parallel according to default spacing and hangs down respectively
Straight through each vertex of a regular polygon, the compound sub-conductor of optical fiber by the center of the regular polygon, and with each institute
It is parallel to state sub-conductor.
In one embodiment, it is somebody's turn to do the split conductor based on the compound sub-conductor of small bore optical fiber further include: multiple conductor spacers;
Each conductor spacer is according to default spacing scattering device in the division based on the compound sub-conductor of small bore optical fiber
On conducting wire, for keep and fix the relative position between each sub-conductor and distance and the compound sub-conductor of the optical fiber with
Relative position and distance between the sub-conductor.
In one embodiment, stress-sag characteristic of the compound sub-conductor of optical fiber and stress-arc sag of each sub-conductor
Characteristic is identical;And the arc sag of the compound sub-conductor of optical fiber is identical as the arc sag of each sub-conductor.
In one embodiment, the sectional area of the compound sub-conductor of optical fiber is less than or equal to the sum of the sectional area of each sub-conductor
15% and be less than or equal to 120mm2。
In one embodiment, the quantity of the sub-conductor includes: two, three, four, the six roots of sensation or eight.
In one embodiment, regular polygon includes: equilateral triangle, regular quadrangle, regular hexagon or octagon.
In one embodiment, the split conductor based on the compound sub-conductor of small bore optical fiber includes: compound based on small bore optical fiber
The binary fission conducting wire of sub-conductor, is based on the compound son of small bore optical fiber at the tripartition conducting wire based on the compound sub-conductor of small bore optical fiber
The conductors on quad bundled of conducting wire, the six-multiple conductor based on the compound sub-conductor of small bore optical fiber are led based on the compound son of small bore optical fiber
Eight split conductors of line.
A kind of split conductor based on the compound sub-conductor of small bore optical fiber provided by the invention, comprising: one has optical fiber
The sub-conductor of the compound sub-conductor of the optical fiber of unit and at least two non-fiber units;The sectional area of the compound sub-conductor of optical fiber is small
In the sectional area of each sub-conductor;When the number of the sub-conductor is two, the compound sub-conductor of optical fiber and two institutes
Sub-conductor is stated to be arranged in parallel in a plane according to default spacing, and the compound sub-conductor of the optical fiber and two sub-conductors
Spacing is equal;When the number of the sub-conductor is greater than two, each sub-conductor is arranged in parallel according to default spacing and difference
Perpendicular through each vertex of a regular polygon, the compound sub-conductor of optical fiber by the center of the regular polygon, and with it is each
The sub-conductor is parallel.Optical fiber compound sub-conductor of the application by sectional area much smaller than each sub-conductor is arranged in based on small bore light
The position of center line of the split conductor of fine compound sub-conductor, the compound sub-conductor of optical fiber substantially only need provide fiber optic communication function
Can, without providing the transmission of electricity function of conventional OPPC, therefore the premise met the requirements in mechanical strength and stress-sag characteristic
Under, its sectional area (outer diameter) can accomplish it is equal with optical fiber composite overhead ground wire (OPGW) even more small, to have significant
Reduce the size and weight of remaining cable disk of the compound sub-conductor of optical fiber, the insulating space that cable disk and connector box occupy more than reduction, reduce
Remaining cable disk and the quantity of connector box, the design that engineering is greatly lowered, difficulty of construction and workload promote fiber optic communication unit to answer
For main power grid overhead transmission line split conductor and improve the beneficial of fiber optic communication safety under the mal-conditions such as sleet and snow ice
Effect.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of split conductor (specially conductors on quad bundled) based on the compound sub-conductor of small bore optical fiber of the invention
Structural schematic diagram;
Fig. 2 is the knot of binary fission conducting wire of one of the one embodiment of the invention based on the compound sub-conductor of small bore optical fiber
Structure schematic diagram;
Fig. 3 is the knot of tripartition conducting wire of one of the one embodiment of the invention based on the compound sub-conductor of small bore optical fiber
Structure schematic diagram;
Fig. 4 is the knot of six-multiple conductor of one of the one embodiment of the invention based on the compound sub-conductor of small bore optical fiber
Structure schematic diagram;
Fig. 5 is between conductors on quad bundled of one of the one embodiment of the invention based on the compound sub-conductor of small bore optical fiber
Every the structural schematic diagram of stick;
Fig. 6 is the connection of conductors on quad bundled of one of the one embodiment of the invention based on the compound sub-conductor of small bore optical fiber
The structural schematic diagram of plate;
Fig. 7 is that the split conductor of the invention based on the compound sub-conductor of small bore optical fiber is defeated for a kind of making somebody a mere figurehead for anti-ice damage
The structural schematic diagram of electric line, the overhead transmission line are in the anti-icing method of operation;
Fig. 8 is that the split conductor of the invention based on the compound sub-conductor of small bore optical fiber is defeated for a kind of making somebody a mere figurehead for anti-ice damage
The structural schematic diagram of electric line, the overhead transmission line are in the lightning protection method of operation.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
About " first " used herein, " second " ... etc., not especially censure the meaning of order or cis-position,
Also non-to limit the present invention, only for distinguishing with the element of same technique term description or operation.
It is open term, i.e., about "comprising" used herein, " comprising ", " having ", " containing " etc.
Mean including but not limited to.
About it is used herein " and/or ", including any of the things or all combination.
Explanation of technical terms:
Split conductor (Bundled Conductor): for corona discharge and the reduction for inhibiting high pressure AC and DC transmission line of electricity
The reactance of transmission line of alternation current, equivalent increase diameter of wire simultaneously improve a kind of wire erection mode that transmission power is taken, i.e.,
Every phase (or every pole) conducting wire is made of the lesser sub-conductor of several diameters, and each sub-conductor is spaced apart and arranges by regular polygon
Column, and each sub-conductor is arranged in each vertex of regular polygon.
Optical fiber composite phase (OPPC, Optical Phase Conductor): fiber unit is compounded in conducting wire, shape
At have transmission electric energy and fiber optic communication dual function conducting wire.
Aerial earth wire: it for preventing thunder and lightning from attacking the element of conducting wire directly in overhead transmission line, is typically mounted above conducting wire
Or oblique upper, abbreviation ground wire, also known as lightning conducter.
Optical fiber composite overhead ground wire (OPGW, Optical Fiber Composite Overhead Ground Wire):
Fiber unit is compounded in aerial earth wire, the aerial earth wire of the dual function with line thunder protection and fiber optic communication of formation.
Conductor spacer: being mounted on the split conductor of overhead transmission line, between each sub-conductor for limiting split conductor
Relative motion and keep split conductor geometry element.Default spacing generally along split conductor every tens of meters is pacified
Fill a conductor spacer.
In view of the deficiencies in the prior art, a kind of point based on the compound sub-conductor of small bore optical fiber provided by the invention
Conducting wire is split, structural schematic diagram is as shown in Figure 1, being somebody's turn to do the split conductor 1 based on the compound sub-conductor of small bore optical fiber includes: a tool
There is the sub-conductor 3 of the compound sub-conductor 2 of the optical fiber of fiber unit and at least two non-fiber units.
Wherein, the sectional area of the compound sub-conductor 2 of the optical fiber is less than the sectional area of each sub-conductor 3.The optical fiber is multiple
The sectional area of zygote conducting wire 2 is less than or equal to the 15% of the sum of each described sub-conductor sectional area and is less than or equal to 120mm2。
As shown in Fig. 2, when the number of the sub-conductor 3 is two, the compound sub-conductor 2 of optical fiber and two sons
Conducting wire 3 is arranged in parallel in a plane according to default spacing.Wherein, the compound sub-conductor 2 of the optical fiber and two sub-conductors 3
Spacing it is equal so that the compound sub-conductor 2 of optical fiber is set to the center of the split conductor 1 based on the compound sub-conductor of small bore optical fiber
At line.
As shown in Fig. 1, Fig. 3 and Fig. 4, when the number of the sub-conductor 3 is greater than two, each sub-conductor 3 is according to pre-
If spacing is arranged in parallel and is respectively perpendicular each vertex by a regular polygon.Wherein, the compound sub-conductor 2 of the optical fiber passes through
The center O of the regular polygon, and it is parallel with each sub-conductor 3, so that the compound sub-conductor 2 of optical fiber is set to based on small bore
The centerline of the split conductor 1 of the compound sub-conductor of optical fiber.
Wherein, stress-sag characteristic of stress-sag characteristic of the compound sub-conductor 2 of the optical fiber and each sub-conductor 3
It is identical, to ensure the arc sag phase of the arc sag and each sub-conductor 3 of the compound sub-conductor 2 of optical fiber under various operating conditions
Together.
When it is implemented, as shown in Figures 1 to 4, the quantity of the sub-conductor 3 includes: two, three, four, the six roots of sensation or
Eight, the application is not limited.
As shown in Figures 1 to 4, the quantity corresponding to the sub-conductor 3, the division based on the compound sub-conductor of small bore optical fiber
Conducting wire 1 includes: the binary fission conducting wire based on the compound sub-conductor of small bore optical fiber, three points based on the compound sub-conductor of small bore optical fiber
Split conducting wire, the conductors on quad bundled based on the compound sub-conductor of small bore optical fiber, six divisions based on the compound sub-conductor of small bore optical fiber
Conducting wire or eight split conductors based on the compound sub-conductor of small bore optical fiber etc., the application is not limited.
As shown in Fig. 1, Fig. 3 and Fig. 4, symmetrical regular polygon includes: equilateral triangle, regular quadrangle, regular hexagon or positive eight
Side shape etc., the application is not limited.
When it is implemented, as shown in Figure 1, being somebody's turn to do the split conductor 1 based on the compound sub-conductor of small bore optical fiber includes: a tool
There is the sub-conductor 3 of the compound sub-conductor 2 of the optical fiber of fiber unit and four non-fiber units.Four root conducting wires 3 are spaced apart
And arranged by regular quadrangle, and four root conducting wires 3 are arranged in each vertex of regular quadrangle, constitute conductors on quad bundled.It should
The compound sub-conductor 2 of optical fiber is arranged on the center line of the conductors on quad bundled, constitutes four based on the compound sub-conductor of small bore optical fiber
Split conductor.The compound sub-conductor of the optical fiber 2 need to meet the requirement for running required mechanical strength and stress-sag characteristic
Requirement, and there is no quantitative requirement for its ability to transmit electricity and resistivity, sectional area can be selected under the premise of above-mentioned and be much smaller than
The compound sub-conductor 2 of the optical fiber of sub-conductor 3 leads to one to avoid the compound sub-conductor 2 of optical fiber is increased in conventional split conductor
Mutually or the significant change of the electric parameter of a polar conductor, with the conductors on quad bundled of LGJ-400/35 × 4 and parameter close to OPGW-
For the conductors on quad bundled based on the compound sub-conductor of small bore optical fiber of the compound sub-conductor composition of 120 optical fiber: multiple with non-fiber
The conventional conductors on quad bundled of zygote conducting wire is compared, and the reactance drop of the conductors on quad bundled based on the compound sub-conductor of small bore optical fiber is somebody's turn to do
Low about 1%, capacitor increases about 1%, and resistance reduces about 7%, and if it is considered that the kelvin effect then resistance of alternating current variation
It measures smaller.
There is fiber unit as shown in Fig. 2, being somebody's turn to do the split conductor 1 based on the compound sub-conductor of small bore optical fiber and including: one
The compound sub-conductor 2 of optical fiber and two non-fiber units sub-conductor 3.Two root conducting wires 3 are spaced apart and are parallel to each other
Arrangement constitutes binary fission conducting wire.The compound sub-conductor 2 of the optical fiber is arranged on the center line of the binary fission conducting wire, is constituted based on small
The binary fission conducting wire of the compound sub-conductor of area fiber.
There is fiber unit as shown in figure 3, being somebody's turn to do the split conductor 1 based on the compound sub-conductor of small bore optical fiber and including: one
The compound sub-conductor 2 of optical fiber and three non-fiber units sub-conductor 3.Three root conducting wires 3 are spaced apart and press positive triangle
Shape arrangement, and three root conducting wires 3 are arranged in each vertex of equilateral triangle, constitute tripartition conducting wire.The compound son of the optical fiber
Conducting wire 2 is arranged on the center line of the tripartition conducting wire, constitutes the tripartition conducting wire based on the compound sub-conductor of small bore optical fiber.
There is fiber unit as shown in figure 4, being somebody's turn to do the split conductor 1 based on the compound sub-conductor of small bore optical fiber and including: one
The compound sub-conductor 2 of optical fiber and six roots of sensation non-fiber unit sub-conductor 3.Six roots of sensation sub-conductor 3 is spaced apart and presses positive six side
Shape arrangement, and six roots of sensation sub-conductor 3 is arranged in each vertex of regular hexagon, constitutes six-multiple conductor.The compound son of the optical fiber
Conducting wire 2 is arranged on the center line of the six-multiple conductor, constitutes the six-multiple conductor based on the compound sub-conductor of small bore optical fiber.
In one embodiment, it is somebody's turn to do the split conductor 1 based on the compound sub-conductor of small bore optical fiber further include: multiple conductor spacers
4。
Each conductor spacer 4 is according to default spacing scattering device in the division based on the compound sub-conductor of small bore optical fiber
On conducting wire 1, for keeping and fixing the relative position between each sub-conductor 3 and distance and the compound sub-conductor of the optical fiber
Relative position and distance between 2 and the sub-conductor 3.Unlike the conductor spacer of conventional split conductor, it is based on small bore
The conductor spacer 4 of the split conductor 1 of the compound sub-conductor of optical fiber must increase the fixed function of the compound sub-conductor 2 of optical fiber.
When it is implemented, as shown in Figure 1, being installed on one section of conductors on quad bundled 1 based on the compound sub-conductor of small bore optical fiber
The spacing of 2 conductor spacers 4,2 conductor spacers 4 is generally tens of rice, such as: 45m.The structure of conductor spacer 4 be not it is unique, it is all
The relative position and distance that are able to maintain and fix between the compound sub-conductor 2 of the optical fiber and the sub-conductor 3 and each described
The structure of relative position and distance between sub-conductor 3 can be used as the structure of conductor spacer 4, as shown in Figure 1, conductor spacer 4
Four vertex of regular quadrangle frame are respectively used to fix the 4 of the conductors on quad bundled 1 based on the compound sub-conductor of small bore optical fiber
Root conducting wire 3;Two cornerwise midpoints of the regular quadrangle frame of conductor spacer 4 are for fixing the compound sub-conductor 2 of optical fiber.Its
In, the diagonal line of regular quadrangle frame is additional increased part on the basis of conventional conductors on quad bundled conductor spacer, is used for
The fixed compound sub-conductor 2 of optical fiber.
As shown in Fig. 2, being mounted with 2 conductor spacers on one section of binary fission conducting wire 1 based on the compound sub-conductor of small bore optical fiber
The spacing of 4,2 conductor spacers 4 is generally tens of rice, such as: 45m.The both ends of linear conductor spacer 4 are respectively used to fix 2
The sub-conductor 3, this is the typical spacing stick structure of conventional binary fission conducting wire;The midpoint of linear type conductor spacer 4 is for fixing
The compound sub-conductor 2 of optical fiber, is maintained for and secures in this way between the compound sub-conductor 2 of the optical fiber and the sub-conductor 3
Relative position and distance between relative position and distance and each sub-conductor 3.
As shown in figure 3, being mounted with 2 conductor spacers on one section of tripartition conducting wire 1 based on the compound sub-conductor of small bore optical fiber
The spacing of 4,2 conductor spacers 4 is generally tens of rice, such as: 45m.It uses respectively on three vertex of the equilateral triangle frame of conductor spacer 4
In the 3 root conducting wires 3 for fixing the tripartition conducting wire 1 based on the compound sub-conductor of small bore optical fiber, in the equilateral triangle of conductor spacer 4
Increase a middle line on frame to be maintained for and secure so the compound son of the optical fiber for fixing the compound sub-conductor 2 of optical fiber and lead
Relative position between relative position and distance and each sub-conductor 3 and distance between line 2 and the sub-conductor 3.
As shown in figure 4, being mounted with 2 conductor spacers on one section of six-multiple conductor 1 based on the compound sub-conductor of small bore optical fiber
The spacing of 4,2 conductor spacers 4 is generally tens of rice, such as: 45m.It uses respectively on six vertex of the regular hexagon framework of conductor spacer 4
In the 6 root conducting wires 3 for fixing the six-multiple conductor 1 based on the compound sub-conductor of small bore optical fiber, the regular hexagon frame of conductor spacer 4
One cornerwise midpoint of frame is maintained for and secures so the compound son of the optical fiber for fixing the compound sub-conductor 2 of optical fiber
Relative position between relative position and distance and each sub-conductor 3 and distance between conducting wire 2 and the sub-conductor 3.
Conventional method of the conventional optical fiber composite phase (OPPC) for the split conductor of main power network line is with one
OPPC replaces the root conducting wire in conventional split conductor, i.e., is pressed with the sub-conductor of an OPPC and other more dull thread units
More solito arrangement forms the split conductor of a phase or a pole, therefore the OPPC not only has optical fiber communication function, but also has defeated
The sectional area (outer diameter) of Electricity Functional, OPPC is identical as other sub-conductors in split conductor, is much larger than optical fiber composite overhead ground wire
(OPGW).The present invention is arranged in the center line of conventional split conductor with sectional area much smaller than the compound sub-conductor of optical fiber of each sub-conductor
Position, forms the split conductor based on the compound sub-conductor of small bore optical fiber, which substantially only needs
There is optical fiber communication function, the transmission of electricity function of the OPPC without routine, therefore it is full in mechanical strength and stress-sag characteristic
Foot require under the premise of, its sectional area (outer diameter) can accomplish it is equal with OPGW, it is even more small, such as: the quadripartion is led
Line is 400mm by 4 sectional areas2Common sub-conductor composition, the sectional area of the compound sub-conductor of optical fiber is only 120mm2Or
80mm2, the compound sub-conductor of the optical fiber is mounted on to the position of center line of the conductors on quad bundled, constitutes and is based on small bore optical fiber
The conductors on quad bundled of compound sub-conductor.Advantage of the present invention is as follows: (1) sectional area (outer diameter) of the compound sub-conductor of the optical fiber is less than
Equal to OPGW, therefore its remaining cable disk weight and disk diameter is not more than OPGW, and occupancy insulating space is small, can install and be contained in substantially
In the range of split conductor, i.e., the remaining cable disk of the compound sub-conductor of optical fiber and connector box are suspended on the conducting wire below wire jumper insulator
Side not will cause the problems such as phase conductor is insufficient to the insulation distance of steel tower.(2) outer diameter of the compound sub-conductor of the optical fiber is less than
Length equal to OPGW, therefore the compound sub-conductor of a coiled optical fiber can accomplish the length not less than OPGW, and the optical fiber of whole route is multiple
The remaining cable disk quantity and connector box quantity of zygote conducting wire are not more than OPGW, this makes the difficulty of construction and work of the compound sub-conductor of optical fiber
It is identical as OPGW even more small to measure (including tension stringing, fused fiber splice etc.).(3) OPGW outer diameter it is small and be directly exposed to it is external,
Directly bear electric discharge high-temperature electric arc, therefore run during, the damage probability especially under the conditions of serious sleet and snow ice it is higher;This
Although the outer diameter of the compound sub-conductor of the optical fiber of invention is equal to or less than OPGW, it is placed in the center of split conductor, by week
The good shielding of defensive wall conducting wire and the direct calcination for being not easily susceptible to high-temperature electric arc, operational safety are much higher than OPGW.(4) of the invention
The compound sub-conductor of optical fiber essentially without transmission of electricity require, i.e., its aluminium stock need to only meet mechanical performance and stress-arc sag performance
Requirement, and the good electric conductivity and ability to transmit electricity of other sub-conductors need not be reached, along with the electric current collection skin of surrounding sub-conductor
Effect, the probability of the Short-Circuit High Current damage compound sub-conductor of optical fiber is lower during operation.(5) the compound sub-conductor of optical fiber of the invention
Sectional area (outer diameter) be much smaller than each sub-conductor, therefore increase the compound son of optical fiber on the basis of original conventional split conductor and lead
Line is smaller for parameter (including induction reactance, the capacitive reactance, resistance) influence of original split conductor, i.e., for alternating current circuit triphase parameter
The influence of the balance of balance and DC line the two poles of the earth parameter can be ignored.
Compared with OPGW, a kind of split conductor based on the compound sub-conductor of small bore optical fiber provided by the invention is improved
The fiber optic communication safety of overhead transmission line under the mal-conditions such as sleet and snow ice;Compared with conventional OPPC, optical fiber of the invention
Compound sub-conductor considerably reduces design, construction and the O&M difficulty and workload of engineering, is conducive to fiber optic communication unit and answers
Split conductor for main power grid overhead transmission line.
Application scenarios
Fig. 5 is a kind of structural schematic diagram of the conductor spacer 4 of conductors on quad bundled based on the compound sub-conductor of small bore optical fiber.Such as
Shown in Fig. 5, top-twisted wire-clip 5 is for connecting and fixing the compound sub-conductor 2 of optical fiber, and connecting plate 6 is removably, in order to incite somebody to action
The compound sub-conductor 2 of optical fiber is installed on the center of conductors on quad bundled, and the application is not limited with the structure of the conductor spacer 4.
Fig. 6 is a kind of structural schematic diagram of the yoke plate 12 of conductors on quad bundled based on the compound sub-conductor of small bore optical fiber.Such as
Shown in Fig. 6, on route tower (tangent tower), need the split conductor based on the compound sub-conductor of small bore optical fiber using yoke plate 12
1 is suspended on route tower, and keeps the relative position and distance between the compound sub-conductor 2 of fixed optical fiber and each sub-conductor 3.In advance
Strand formula wire clamp 13 is for connecting and fixing the compound sub-conductor 2 of optical fiber, and connecting plate 14 is removably, in order to answer optical fiber
Zygote conducting wire 2 is installed on the center of conductors on quad bundled, and the application is not limited with the structure of the yoke plate 12.
Fig. 7 is that the split conductor of the invention based on the compound sub-conductor of small bore optical fiber is defeated for a kind of making somebody a mere figurehead for anti-ice damage
The structural schematic diagram of electric line.As shown in fig. 7, the overhead transmission line is in the anti-icing method of operation.Fig. 8 be it is of the invention based on
Structural schematic diagram of the split conductor of the compound sub-conductor of small bore optical fiber for a kind of overhead transmission line of anti-ice damage.Such as Fig. 8
Shown, which is in the lightning protection method of operation.As shown in Figure 7 and Figure 8, based on the compound sub-conductor of small bore optical fiber
Instead of the conventional split conductor of a phase of the overhead transmission line, it has the function of to transmit electricity and has optical fiber split conductor 1
Communication function.Conductor spacer 4 and yoke plate 12 are used to fix, keep the shape of the split conductor 1 based on the compound sub-conductor of small bore optical fiber
Shape and size.The aerial earth wire 7 of the overhead transmission line be the conventional ground wire without fiber unit, it have lightning protection function without
With optical fiber communication function.Aerial earth wire 7 is connected in a manner of strain insulator by ground wire strain insulator 8 and route tower 11 by opening,
The electric parameter (not including atmospheric over-voltage parameter) of middle ground wire strain insulator 8 is not less than the electric parameter of wire insulation 9.
As shown in fig. 7, in the case where the sleet and snow ice meteorological condition of ice damage may occur, connection line tower 11 and aerial earth wire 7
Ground wire wire jumper 10 be disconnected, aerial earth wire 7 is floating potential, and overhead transmission line is in the anti-icing method of operation, at this time if
Icing causes conducting wire (including the split conductor 1 based on the compound sub-conductor of small bore optical fiber) and aerial earth wire 7 close to each other even
It contacts with each other, putting between conducting wire (including the split conductor 1 based on the compound sub-conductor of small bore optical fiber)-ground wire 7 will not occur
Electricity accordingly also avoids the subsequent ground wire broken string derived from electric discharge and tower, improves the offline road transport of sleet and snow ice meteorological condition
The safety of capable safety and fiber optic communication.
As shown in figure 8, under the non-sleet and snow ice meteorological condition such as thunderstorm season, using ground wire wire jumper 10 by 11 He of route tower
Aerial earth wire 7 is connected, and aerial earth wire 7 has conventional lightning protection function, overhead transmission line for ground potential or close to ground potential
In the lightning protection method of operation.
It is provided by the invention a kind of based on the compound sub-conductor of small bore optical fiber compared with optical fiber composite overhead ground wire (OPGW)
Split conductor the advantages of it is as follows:
1, the safety of fiber optic communication is improved.When conducting wire-ground wire electric discharge or the electric discharge of other forms occurs, OPGW's is cut
Area is small and is directly exposed to external, direct receiving high-temperature electric arc calcination, easily causes OPGW stranded or breaks, and threatens optical fiber logical
Letter safety;For the sectional area (outer diameter) of the compound sub-conductor of optical fiber of the invention although being equal to or less than OPGW, it is placed in division
The center of conducting wire is not easily susceptible to the direct calcination of high-temperature electric arc by well shielding for sub-conductor around, and operational safety is significantly
Higher than OPGW, the fiber optic communication safety of overhead transmission line under the bad weather conditions such as sleet and snow ice is effectively increased.
2, make the anti-icing method of operation based on aerial earth wire that there is operability, improve the line under sleet and snow ice meteorological condition
The safety of road transport row.The main power network line of 110kV (66kV) and above generally at least uses an OPGW at present,
The fiber unit of OPGW must keep all fronts continuous state, and the anti-icing method of operation of above-mentioned overhead transmission line then requires ground wire
It is divided into discontinuous multistage, therefore is not applied for the above-mentioned anti-icing method of operation using the route of OPGW;Base of the invention
Have the function of transmission of electricity in the split conductor of the compound sub-conductor of small bore optical fiber and there is optical fiber communication function simultaneously, therefore route
Aerial earth wire can use the conventional ground wire of non-fiber unit and need not use OPGW, and such route is implemented with above-mentioned base
In the anti-icing method of operation of aerial earth wire, the safety of the offline road transport row of sleet and snow ice meteorological condition is improved.
Compared with existing optical fiber composite phase (OPPC), one kind provided by the invention is led based on the compound son of small bore optical fiber
The split conductor of line has the advantage that
1, the compound sub-conductor of optical fiber not will cause conducting wire to the deficiency of the insulation distance of steel tower.The compound sub-conductor of optical fiber it is remaining
The disk diameter of cable disk is small, and the insulating space that remaining cable disk and connector box occupy is small, therefore remaining cable disk and connector box are installed, are fixed on conducting wire
The problems such as when side, capable of being contained in the range of split conductor substantially, not will cause deficiency of the conducting wire to the insulation distance of steel tower.
2, the difficulty of construction and workload of the compound sub-conductor of optical fiber substantially reduce, and not will cause seriously declining for optical signal
Subtract:
1. the sectional area (outer diameter) of the compound sub-conductor of optical fiber be not more than OPGW, i.e. the length of the compound sub-conductor of a coiled optical fiber and
Its single tension stringing length is not less than OPGW, therefore the tension stringing number of the compound sub-conductor of optical fiber of whole route is little
In OPGW, it is significantly smaller than conventional OPPC.
2. the length due to the compound sub-conductor of a coiled optical fiber is not less than OPGW, its remaining cable in whole line range
Disk quantity and connector box quantity are not more than OPGW and are considerably less than conventional OPPC, i.e. the fused fiber splice of the compound sub-conductor of optical fiber
The installation amount of construction volume and connector box and remaining cable disk is considerably less than conventional OPPC.
3. not will cause the deep fades of optical signal since the fibre-optical splice quantity of the compound sub-conductor of optical fiber is few.It is comprehensive
Upper described, compared with conventional OPPC, the difficulty of construction and workload of the compound sub-conductor of optical fiber of the invention are substantially reduced, and not
It will cause the deep fades of optical signal.
A kind of split conductor based on the compound sub-conductor of small bore optical fiber provided by the invention, comprising: one has optical fiber
The sub-conductor of the compound sub-conductor of the optical fiber of unit and at least two non-fiber units;
The sectional area of the compound sub-conductor of optical fiber is less than the sectional area of each sub-conductor;When the number of the sub-conductor
When being two, the compound sub-conductor of optical fiber and two sub-conductors are arranged in parallel in a plane according to default spacing, and
The compound sub-conductor of optical fiber is equal with the spacing of two sub-conductors;When the number of the sub-conductor is greater than two, respectively
The sub-conductor is arranged in parallel according to default spacing and is respectively perpendicular each vertex by a regular polygon, and the optical fiber is compound
Sub-conductor passes through the center of the regular polygon, and parallel with each sub-conductor.The present invention is compound with optical fiber is substantially reduced
Engineering is greatly lowered in cable disk and connector box occupy more than the size and weight of the remaining cable disk of sub-conductor, reduction insulating space
Design, difficulty of construction and workload promote fiber optic communication unit application in the split conductor of main power grid overhead transmission line and mention
The beneficial effect of fiber optic communication safety under the mal-conditions such as high sleet and snow ice.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
Specific embodiment is applied in the present invention, and principle and implementation of the present invention are described, above embodiments
Explanation be merely used to help understand method and its core concept of the invention;At the same time, for those skilled in the art,
According to the thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion in this specification
Appearance should not be construed as limiting the invention.
Claims (7)
1. a kind of split conductor based on the compound sub-conductor of small bore optical fiber characterized by comprising one has fiber unit
The compound sub-conductor of optical fiber and at least two non-fiber units sub-conductor;
The sectional area of the compound sub-conductor of optical fiber is less than the sectional area of each sub-conductor;
When the number of the sub-conductor is two, the compound sub-conductor of optical fiber and two sub-conductors are according to default spacing
It is arranged in parallel in a plane, and the compound sub-conductor of the optical fiber is equal with the spacing of two sub-conductors;
When the number of the sub-conductor is greater than two, each sub-conductor is arranged in parallel according to default spacing and is respectively perpendicular logical
Cross each vertex an of regular polygon, the compound sub-conductor of optical fiber passes through the center of the regular polygon, and with each son
Conducting wire is parallel.
2. the split conductor according to claim 1 based on the compound sub-conductor of small bore optical fiber, which is characterized in that also wrap
It includes: multiple conductor spacers;
Each conductor spacer is according to default spacing scattering device in the split conductor based on the compound sub-conductor of small bore optical fiber
On, for keep and fix the relative position between each sub-conductor and distance and the compound sub-conductor of the optical fiber with it is described
Relative position and distance between sub-conductor.
3. the split conductor according to claim 1 based on the compound sub-conductor of small bore optical fiber, which is characterized in that the light
Stress-sag characteristic of fine compound sub-conductor is identical as stress-sag characteristic of each sub-conductor;And the compound son of optical fiber
The arc sag of conducting wire is identical as the arc sag of each sub-conductor.
4. the split conductor according to claim 1 based on the compound sub-conductor of small bore optical fiber, which is characterized in that the light
The sectional area of fine compound sub-conductor is less than or equal to the 15% of the sum of sectional area of each sub-conductor and is less than or equal to 120mm2。
5. the split conductor according to claim 1 based on the compound sub-conductor of small bore optical fiber, which is characterized in that the son
The quantity of conducting wire includes: two, three, four, the six roots of sensation or eight.
6. the split conductor according to claim 1 based on the compound sub-conductor of small bore optical fiber, which is characterized in that it is described just
Polygon includes: equilateral triangle, regular quadrangle, regular hexagon or octagon.
7. the split conductor according to claim 1 based on the compound sub-conductor of small bore optical fiber, which is characterized in that based on small
The split conductor of the compound sub-conductor of area fiber includes: binary fission conducting wire based on the compound sub-conductor of small bore optical fiber, based on small
The tripartition conducting wire of the compound sub-conductor of area fiber, is based on small section at the conductors on quad bundled based on the compound sub-conductor of small bore optical fiber
The six-multiple conductor of the compound sub-conductor of face optical fiber or eight split conductors based on the compound sub-conductor of small bore optical fiber.
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