WO2018040827A1 - 一种oppc光缆的光单元直接引下构造及其施工方法 - Google Patents

一种oppc光缆的光单元直接引下构造及其施工方法 Download PDF

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Publication number
WO2018040827A1
WO2018040827A1 PCT/CN2017/095409 CN2017095409W WO2018040827A1 WO 2018040827 A1 WO2018040827 A1 WO 2018040827A1 CN 2017095409 W CN2017095409 W CN 2017095409W WO 2018040827 A1 WO2018040827 A1 WO 2018040827A1
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Prior art keywords
lumen
light unit
cable
tube
oppc
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PCT/CN2017/095409
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English (en)
French (fr)
Inventor
林杨
Original Assignee
林杨
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Publication of WO2018040827A1 publication Critical patent/WO2018040827A1/zh

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    • 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
    • G02B6/4439—Auxiliary devices
    • G02B6/4459—Ducts; Conduits; Hollow tubes for air blown fibres
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00—Overhead installations of electric lines or cables
    • H02G7/22—Arrangements of earthing wires suspended between mastheads
    • 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
    • G02B6/4422—Heterogeneous cables of the overhead type
    • 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
    • G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
    • G02B6/56—Processes for repairing optical cables
    • G02B6/566—Devices for opening or removing the mantle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/008—Power cables for overhead application
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
    • H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/08—Cable junctions
    • H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
    • 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
    • G02B6/4439—Auxiliary devices
    • G02B6/4471—Terminating devices ; Cable clamps
    • G02B6/4472—Manifolds
    • G02B6/4475—Manifolds with provision for lateral branching

Definitions

  • the invention relates to a light unit direct guiding structure of an OPPC optical cable and a construction method thereof.
  • the Optical Phase Conductor combines the optical unit in the phase line to transmit optical signals while transmitting electrical energy. At the same time, the optical signal transmission link is built along the line.
  • One material and two uses both materials and labor.
  • the new construction technology has solved the problem of the traditional construction method.
  • the results of the field application show that it not only eliminates the long cable length and does not need to climb the weld, but also can use the conventional line connection fittings.
  • the OPPC of the plastic tube light unit makes the high voltage insulation problem of the lower section easier to solve, and the manufacturing cost of the optical unit is greatly reduced, and the construction is more convenient.
  • the general OPPC cable is to place the light unit on the inner layer. It is reasonable to strengthen the protection of the light unit. However, when the light unit separation sleeve developed in 2009 was assembled, the light unit was required to be placed in the secondary outer layer.
  • the technical problem to be solved by the present invention is to provide a direct directing structure of a light unit of an OPPC optical cable and a construction method thereof.
  • the optical unit of the OPPC optical cable is directly guided down, and is provided with an OPPC optical cable, a pre-twisted wire assembly, a first connecting fitting, a second connecting fitting, an insulator string and an electrical connection jumper, wherein the pre-twisted wire assembly is installed in the On the OPPC cable, and the pre-twisted wire assembly is connected to one end of the insulator string through the first connecting fitting and the second connecting fitting, and the other end of the insulator string is connected to the cross arm of the iron tower or the utility pole.
  • the electrical connection jumper is mounted on the OPPC cable, wherein the OPPC cable is formed by twisting a plastic tube light unit, a plurality of steel wires and a plurality of aluminum wires, wherein the optical unit is directly
  • the lead down structure is further provided with a light unit lead-out joint;
  • the light unit lead-out joint is provided with a base, an upper cover, a lead-out tube and an insulating sealing assembly, wherein the base is a profiled tube body provided with a cover opening and a lead-out hole, and the base is sequentially divided into a composite section, a separation section and a recovery section, the cover opening is formed at a top of the pipe wall of the base and penetrates the composite section and the separation section and covers a portion of the recovery section, and the outlet hole is opened at the base
  • the bottom of the tube wall is located in the separation section, and the outlet tube is a shaped tube body having a different diameter lumen, and the different diameter lumen is sequentially connected by the first lumen, the second lumen and the third lumen
  • the second lumen is a hemispherical lumen
  • the outlet tube is provided with an external thread at an end of the third lumen
  • the insulating sealing component is provided with a spherical sealing gasket and an insulating sheath.
  • the insulating sheath is a reduced diameter tubular body having a hemispherical lumen and a main lumen and connected by a large diameter tubular portion and a small diameter tubular portion, the hemispherical lumen being located at the The end position of the large diameter pipe portion, the main pipe cavity passes through the small diameter pipe portion and a hemispherical lumen is connected, the outer wall of the reinforcing sleeve at one of the end positions is provided with an outer boss, and the inner wall of the fastening nut at one end position is provided with an inner boss; the outlet tube and The bases are connected such that the first lumen communicates with the lumen of the base through the lead-out holes;
  • the cable segment of the OPPC cable at the tail is separated into a retained strand and the plastic tube light unit by stripping the outer strand of the plastic tube light unit, and the retained strand is cut to the length ratio a strand segment having a length ⁇ L of a length of the separation section and the recovery section, wherein ⁇ L is between 1 cm and 2 cm;
  • the separated plastic tube light unit protrudes into the reducer lumen of the outlet tube through the lead-out hole, the retained strand penetrates into the lumen of the base, and the recovery section cable
  • An end of length ⁇ L protrudes out of the base such that the left end of the retained strand is located in the separated section, and then a soft aluminum tube having an outer diameter corresponding to the official cavity and the inner diameter and the retained strand is inserted , filling the space left by the recovery section (D3) to form a corresponding complete recovery section cable,
  • D3 recovery section
  • the end of the base on one side of the retracting section is pressed against the retracting section cable by a hydraulic clamp, and the plastic tube light unit extending into the different diameter lumen of the outlet tube passes through the insulation a sealing assembly is taken out, and the upper cover is closed on the cover opening;
  • the plastic tube light unit extending into the different diameter lumen of the outlet tube is led out by the insulating sealing assembly in such a manner that the spherical sealing gasket and the large diameter tube portion of the insulating sheath are sequentially mounted to the In the second lumen and the third lumen, the spherical sealing gasket is located in a spherical cavity formed by the second lumen and the hemispherical lumen, and the first lumen of the extraction tube passes through a central through hole of the spherical sealing gasket is in communication with the main chamber; the plastic tube light unit extending into the different diameter of the outlet tube passes through the central through hole of the spherical sealing gasket and the main chamber; a reinforcing sleeve is disposed on the small diameter pipe portion, and the outer boss is seated on the large diameter pipe portion; the fastening nut is sleeved on the reinforcing sleeve and the external thread Connecting, such that the inner boss of
  • the OPPC cable is provided with two of the plastic tube light units;
  • the light unit outlet joint is provided with two of the outlet tubes and two sets of the insulating sealing assembly, the upper cover Providing an upper cover take-out hole, and the upper cover take-out hole is located in the composite section when the upper cover is closed on the cover;
  • the first lead pipe is connected to the base, so that the first The first lumen is in communication with the lumen of the base through the extraction aperture, and the second extraction conduit is connected to the outer wall of the upper cover such that the second lumen passes through the first lumen Said cap take-up opening is in communication with the lumen of the base;
  • the two plastic tube light units are separated from the retained strand by stripping the outer strand, the first being separated a plastic tube light unit extends through the lead-out hole into the reducer lumen of the outlet tube of the connection base and is led out through the first set of the insulating sealing assembly, and the second separated plastic tube light unit Extending through the upper cover outlet hole into the reducer tube
  • the extraction tube has an axial direction from the first lumen to the third lumen and an axial direction of the extraction tube from the composite section to the recovery section. Form an acute angle.
  • the first lumen is gradually curved along the axial direction from the first lumen to the third lumen. Smaller truncated cone lumen.
  • a triangular reinforcing portion is connected between the base and the lead-out tube, and the base, the lead-out tube and the triangular reinforcing portion are integrally formed.
  • the cover is covered in the cover
  • the upper cover on the mouth is fixed to the base by bolts.
  • the OPPC cable leaves a cable section for maintenance between the mounting position of the pre-twisted wire assembly and the mounting position of the light unit lead-out joint;
  • the lower structure is further provided with a remaining cable frame; the remaining cable frame is connected between the first connecting hardware and the second connecting hardware; and the remaining cable segment is wound on the remaining cable frame.
  • the remaining cable rack is composed of a horizontal tie rod and a vertical pull rod whose upper end is fixed in the middle of the horizontal pull rod, and the horizontal pull rod and the vertical pull rod are respectively provided with wired ears, and the horizontal pull rod is connected. Between the first connecting fitting and the second connecting fitting, the remaining cable segment is wound around the remaining cable tray through the wire ear.
  • the optical unit of the OPPC optical cable directly leads to a structural construction method, characterized in that: the light unit is directly led down to the light unit direct-down structure, and the construction method comprises:
  • Step 1 Complete the connection between the OPPC cable and the light unit lead-out connector on the ground, including:
  • Step 1-1 the cable segment of the OPPC cable located at the tail is made into the reserved strand and the separated plastic tube light unit;
  • Step 1-2 firstly, the separated plastic tube light unit is inserted into the different diameter lumen of the extraction tube, and the retained strand penetrates into the lumen of the base, and is inserted into the ⁇ L end.
  • a soft aluminum tube having an outer diameter corresponding to the official cavity and the inner diameter and the retained strand and the remaining space, filling the space left by the recovery section (D3) to form a corresponding complete recovery section cable, and then said upper cover Closing the cover of the base, and pressing the end of the base on the side of the retracting section to the recovery section cable with a hydraulic clamp;
  • Step 1-3 the plastic tube light unit extending into the different diameter lumen of the outlet tube is taken out through the insulating sealing assembly, and the plastic tube light unit taken out through the insulating sealing assembly is temporarily coiled, wherein The plastic tube light unit led out by the insulating sealing assembly extends into the outlet tube reducer lumen and then passes through the central through hole of the spherical sealing gasket and the portion of the insulating sheath that is passed through the main cavity of the insulating sheath;
  • Step 2 mounting the pre-twisted wire assembly and the electrical connection jumper on the OPPC cable on the ground, wherein the OPPC cable is installed at the mounting position of the pre-twisted wire assembly and the optical unit There is a remaining cable section between the installation locations for maintenance;
  • Step 3 connecting the pre-twisted wire assembly to one end of the insulator string through the first connecting fitting, the remaining cable holder and the second connecting fitting on the ground, and winding the remaining cable segment in the remaining On the cable rack;
  • Step 4 lifting the other end of the insulator string and connecting it to the cross arm of the iron tower or the utility pole to
  • the OPPC cable, the pre-twisted wire assembly, the first connecting fitting, the remaining cable holder, the second connecting fitting, the insulator string and the electrical connection jumper are pulled into the sky;
  • Step 5 Release the temporarily coiled plastic tube light unit and fix it on the iron tower or the utility pole to directly lead the plastic tube light unit of the OPPC cable.
  • the present invention has the following beneficial effects:
  • the light unit direct-conducting structure of the present invention can separate the plastic tube optical unit of the OPPC cable hanging in the sky and directly lead it, and is suitable for the OPPC where the plastic tube light unit is installed at any position in the OPPC cable.
  • the optical cable avoids the limitation of the existing OPPC optical unit separation and introduction technology, which is only applicable to the OPPC optical cable in which the optical unit is located in the secondary outer layer;
  • the optical unit lead-out joint of the present invention can realize the separation and direct separation of the plastic tube optical unit of the OPPC optical cable including the two plastic light units by adding an insulating seal assembly and a lead-out tube connected to the upper cover. Lead down
  • the optical unit of the present invention directly leads to the structure through the residual cable frame, and can be used to coil the remaining cable section of the OPPC cable for maintenance in the high air, so as to reserve certain convenience for future accident handling or maintenance;
  • the optical unit direct-construction construction method of the present invention can complete the connection of the OPPC optical cable and the optical unit lead-out joint on the ground, the pre-twisted wire assembly, the first connecting fitting, the remaining cable holder, the second connecting fitting and the insulator. After the connection of the string is installed, and the coiling of the remaining cable section is carried out, it is pulled up to the crossarm of the iron tower or the utility pole, and finally the direct introduction of the plastic tube light unit is realized. Therefore, the present invention can avoid the conventional light unit. Directly constructing the construction method requires the construction in the high altitude where the iron tower or the electric pole is located, which has the problems of inconvenient construction and difficult quality inspection, and has the advantages of simple and convenient construction.
  • FIG. 1-1 is an exploded view of a front cross-sectional structure of a light unit lead-out joint according to Embodiment 1 of the present invention
  • 1-2 is a left side view of a light unit lead-out joint according to Embodiment 1 of the present invention.
  • 1-3 are top plan views of an upper cover of a light unit lead-out joint according to Embodiment 1 of the present invention.
  • FIG. 2 is a schematic cross-sectional structural view of an OPPC optical cable
  • FIG. 3 is a schematic cross-sectional view showing the structure of a light unit lead-out joint mounted on an OPPC cable according to Embodiment 1 of the present invention
  • FIG. 4 is a schematic front cross-sectional structural view showing a direct directing structure of a light unit of a light unit lead-out joint according to Embodiment 1 of the present invention
  • 5-1 is an exploded view of a front view structure of a light unit lead-out joint according to Embodiment 2 of the present invention.
  • 5-2 is a left side view of the light unit lead-out joint of the second embodiment of the present invention.
  • 5-3 is a top plan view of an upper cover of a light unit lead-out joint according to Embodiment 2 of the present invention.
  • FIG. 6 is a schematic front cross-sectional structural view of an optical unit lead-out joint mounted on an OPPC optical cable according to Embodiment 2 of the present invention
  • Figure 7 is a schematic view showing the structure of the softened aluminum tube of the recovery section of the present invention.
  • the optical unit of the OPPC optical cable of the first embodiment of the present invention directly leads to the lower structure, and is provided with an OPPC optical cable 1, an optical unit lead-out joint 2, a pre-twisted wire assembly 3, and a first connecting hardware 4 , the remaining cable frame 5, the second connecting hardware 6, the insulator string 7 and the electrical connection jumper 8, wherein the remaining cable frame 5 is composed of a horizontal pull rod 51 and a vertical pull rod 52 whose upper end is fixed in the middle of the horizontal pull rod 51, the horizontal pull rod 51 and A wired ear 53 is mounted on the vertical pull rod 52.
  • the pre-twisted wire assembly 3 is mounted on the OPPC cable 1, and the pre-twisted wire assembly 3 is sequentially connected to one end of the insulator string 7 through the first connecting rod 4, the horizontal rod 51 of the remaining cable holder 5, and the second connecting fitting 6, the insulator string The other end of the 7 is connected to the cross arm of the iron tower or the utility pole, and the electrical connection jumper 8 is mounted on the OPPC optical cable 1.
  • the OPPC optical cable 1 is composed of a plastic tube light unit 11, a plurality of steel wires 12 and a plurality of aluminum wires 13 Stranded, the plastic tube light unit 11 is a light unit covered with an insulating material sleeve (ie, a plastic tube), which can isolate a high voltage; the two ends of the OPPC cable 1 respectively pass through two sets of pre-twisted wire assemblies 3,
  • the first connecting fitting 4, the second connecting fitting 6 and the insulator string 7 are connected to the cross arm of the two iron towers (or utility poles), and the mounting position of the pre-twisted wire assembly 3 on the OPPC optical cable 1 is made by the OPPC cable 1,
  • the skein assembly 3, the first connecting fitting 4, the second connecting fitting 6 and the insulator string 7 are connected to the cross-arm of the tower or the utility pole, that is, the sag step in the conventional construction of the OPPC cable.
  • the light unit lead-out joint 2 is provided with a base 21, an upper cover 22, a lead-out tube 23 and an insulating sealing assembly 24, and a triangular reinforcing portion 25 is connected between the base 21 and the lead-out tube 23, and the base 21, the lead-out tube 23 and The triangular reinforcing portion 25 is integrally formed.
  • the base 21 is a profiled tube body having a cover opening 21a and a lead-out hole 21b.
  • the base 21 is sequentially divided into a composite section D1, a separation section D2 of about 8 cm and a restoration section D3, and the cover opening 21a is opened in the axial direction.
  • the top of the pipe wall of the base 21 penetrates the composite section D1 and the separation section D2 and covers a partial recovery section D3.
  • the outlet hole 21b is opened at the bottom of the pipe wall of the base 21 and is located in the separation section D2, and the outlet pipe 23 has a different diameter pipe.
  • the shaped tube of the cavity, the different diameter lumen is composed of a first lumen 23a, a second lumen 23b and a third lumen 23c, and the first lumen 23a is a tube diameter along the first lumen 23a to the third
  • the axial direction of the lumen 23c is gradually reduced by a frustum-shaped lumen
  • the second lumen 23b is a hemisphere a tube having an external thread 231 at an end of the lead tube 23 on the side where the third lumen 23c is located
  • the insulating sealing assembly 24 is provided with a spherical sealing gasket 241, an insulating sheath 242, a reinforcing sleeve 243 and a fastening nut 244, the insulating sheath 242 is a reducing tube body having a hemispherical
  • the hemispherical lumen 242a is located at the end of the large diameter tube portion 2421.
  • the main chamber 242b passes through the small diameter tube portion 2422 and is connected to the hemispherical tube chamber 242a.
  • the outer wall of the reinforcing sleeve 243 at one of the end positions is provided with an outer boss 2431, and the fastening nut 244 is located at the middle end.
  • the inner wall of the position is provided with an inner boss 2441; the lead-out tube 23 is connected to the base 21 such that the first lumen 23a of the lead-out tube 23 communicates with the lumen of the base 21 through the lead-out hole 21b, and the lead-out tube 23 is first
  • the axial direction of the lumen 23a toward the third lumen 23c forms an acute angle with the axial direction of the extraction tube 23 from the composite section D1 to the restoration section D3.
  • the cable segment of the OPPC cable 1 at the tail is separated into the retained strand 14 and the plastic tube light unit 11 by stripping the outer strand of the covered plastic tube light unit 11, and the retained strand 14 is cut to the end to become a length ratio separation section.
  • the sum of the length of D2 and the length of the recovery section D3 is ⁇ L, wherein ⁇ L is between 1 cm and 2 cm.
  • the separated plastic tube light unit 11 protrudes into the different diameter lumen of the extraction tube 23 through the extraction hole 21b, and the retained strand penetrates into the lumen of the base 21, and the The end of the recovery section cable having a length of ⁇ L protrudes beyond the base such that the left end of the reserved strand 14 is located at the separation section D2, and then the outer diameter of the ⁇ L is fitted into the outer diameter and the cavity and The soft aluminum tube, which has an inner diameter corresponding to the retained strand and the space left, fills the space left by the recovery section to form a corresponding complete recovery section cable. Moreover, the end of the base on one side of the retracting section is pressed against the retracting section cable by a hydraulic clamp.
  • the plastic tube light unit 11 that protrudes into the different diameter lumen of the lead-out tube 23 is taken out by the insulating sealing member 24, and the upper cover 22 is covered on the lid opening 21a of the base 21 and fixed to the base 21 by bolts 26.
  • the installation manner of the plastic tube light unit 11 extending into the different diameter lumen of the outlet tube 23 by the insulating sealing assembly 24 is as follows: the spherical sealing washer 241 and the large diameter tube portion 2421 of the insulating sheath 242 are sequentially mounted to the extraction tube.
  • the spherical sealing gasket 241 is located in the spherical cavity formed by the second lumen 23b of the extraction tube 23 and the hemispherical lumen 242a of the insulating sheath 242, and
  • the first lumen 23a of the extraction tube 23 communicates with the main lumen 242b of the insulating sheath 242 through the central through hole of the spherical sealing gasket 241;
  • the plastic tube optical unit 11 that protrudes into the different diameter lumen of the extraction tube 23 passes through the spherical sealing gasket 241
  • the central through hole and the main cavity 242b of the insulating sheath 242 are pierced;
  • the reinforcing sleeve 243 is fitted over the small diameter tube portion 2422 of the insulating sheath 242, and the outer boss 2431 of the reinforcing sleeve 243 is seated in the insulating sheath 242.
  • the large diameter pipe portion 2421; the fastening nut 244 is fitted on the reinforcing sleeve 243 and connected to the external thread 231 of the extraction pipe 23, so that the inner boss 2441 of the fastening nut 244 is fastened
  • the spherical sealing gasket 241 is pressed against the second lumen 23b of the extraction tube 23 and the hemispherical lumen 242a of the insulating sheath 242 by the outer boss 2431 of the reinforcing sleeve 243 and the large diameter tube portion 2421 of the insulating sheath 242.
  • the plastic tube light unit 11 led out by the insulating sealing assembly 24 can be grounded or finished at a reserved length of 15 meters, wherein the plastic tube light unit is taken out through the insulating sealing assembly 24.
  • 11 is a portion in which the plastic tube light unit 11 extends into the reducer tube 23 and then passes through the central through hole of the spherical sealing gasket 241 and the main cavity 242b of the insulating sheath 242.
  • the OPPC cable 1 is provided with a remaining cable section 16 for maintenance between the mounting position of the pre-twisted wire assembly 3 and the mounting position of the light unit lead-out joint 2, and the remaining cable section 16 is wound around the remaining cable frame 5 through the wire ear 53 .
  • the optical unit of the above OPPC cable directly leads to the construction method, including:
  • Step S1 completing the connection between the OPPC optical cable 1 and the optical unit lead-out connector 2 on the ground, including:
  • Step S1-1 the cable segment of the OPPC cable 1 at the tail is made into a reserved strand 14, a recovery section cable 15 and the separated plastic tube light unit 11;
  • Step S1-2 the reserved strand 14 and the recovery section cable 15 are first inserted into the lumen of the base 21, and the separated plastic tube light unit 11 is inserted into the different diameter lumen of the extraction tube 23, and then The upper cover 22 is closed on the cover 21a of the base 21, and the end of the base 21 on the side of the recovery section D3 is pressed against the recovery section cable 15 by hydraulic clamps;
  • step S1-3 the plastic tube light unit 11 that protrudes into the different diameter of the outlet tube 23 is taken out through the insulating sealing assembly 24, and the plastic tube light unit 11 led out through the insulating sealing assembly 24 is temporarily coiled.
  • Step S2 mounting the pre-twisted wire assembly 3 and the electrical connection jumper 8 on the ground on the OPPC cable 1, wherein the OPPC cable 1 is between the mounting position of the pre-twisted wire assembly 3 and the mounting position of the light unit lead-out joint 2 Retaining the remaining cable section 16 for maintenance;
  • Step S3 the pre-twisted wire assembly 3 is sequentially connected to one end of the insulator string 7 through the first connecting fitting 4, the remaining cable holder 5 and the second connecting fitting 6 on the ground, and the remaining cable segment 16 is wound on the remaining cable rack 5 ;
  • Step S4 lifting the other end of the insulator string 7 and connecting it to the cross arm of the iron tower or the utility pole to connect the OPPC cable 1, the pre-twisted wire assembly 3, the first connecting fitting 4, the remaining cable frame 5, and the second connection.
  • the metal fitting 6, the insulator string 7 and the electrical connection jumper 8 are pulled into the air;
  • Step S5 releasing the temporarily coiled plastic tube light unit 11 and fixing it on the iron tower or the electric pole to realize direct drawing of the plastic tube light unit 11 of the OPPC cable 1.
  • the direct light-off structure of the light unit of the second embodiment of the present invention is substantially the same as that of the first embodiment. The difference is that in the second embodiment, the light unit lead-out joint 2 is provided with two.
  • the take-up tube 23 and the two sets of insulating seal assemblies 24, the upper cover 22 is provided with an upper cover lead-out hole 22a, and the upper cover take-out hole 22a is located in the composite section D1 when the upper cover 22 is closed on the cover 21a of the base 21;
  • a lead-out tube 23 is connected to the base 21 such that the first lumen 23a of the first lead-out tube 23 communicates with the lumen of the base 21 through the lead-out hole 21b, and the second lead-out tube 23 is connected to the outer wall of the upper cover 22.
  • the first lumen 23a of the second extraction tube 23 is communicated with the lumen of the base 21 through the upper lid outlet hole 22a.
  • the OPPC cable 1 is provided with two plastic tube light units 11; the two plastic tube light units 11 are separated from the retained strands 14 by the stripping layer strands, and the first separated plastic tube light unit 11 is taken out.
  • the hole 21b extends into the reducer lumen of the outlet tube 23 of the connection base 21 and is led out through the first set of insulating sealing assemblies 24, and the second separated plastic tube light unit 11 extends into the connection through the upper cover outlet 22a.
  • the outer diameter of the outlet tube 23 of the upper cover 22 is led out through a second set of insulating seal assemblies 24.
  • the construction method of the direct-conducting structure of the light unit of the second embodiment is the same as that of the first embodiment, and details are not described herein again.
  • the present invention is not limited to the above specific embodiments, and according to the above-mentioned contents, according to the common technical knowledge and conventional means in the art, the present invention can also make other various forms of equivalents without departing from the above basic technical idea of the present invention. Modifications, substitutions or alterations are intended to fall within the scope of the invention.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Light Guides In General And Applications Therefor (AREA)
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Abstract

一种OPPC光缆(1)的光单元直接引下构造及其施工方法，光单元直接引下构造设有OPPC光缆(1)、预绞丝组件(3)、第一连接金具(4)、第二连接金具(6)、绝缘子串(7)和电连接跳线(8)，还设有光单元引出接头(2)。构造将挂在高空中的OPPC光缆(1)的塑管光单元(11)分离出来并直接引下，并且，适用于塑管光单元(11)安装在OPPC光缆(1)内任意位置的OPPC光缆(1)；施工方法在地面上完成OPPC光缆(1)与光单元引出接头(2)的连接，预绞丝组件(3)、第一连接金具(4)、余缆架(5)、第二连接金具(6)和绝缘子串(7)的连接安装，以及余缆段(16)的盘绕，然后拉到高空中连接到铁塔或电线杆的横担上，实现塑管光单元(11)的直接引下，具有施工简易方便的优点。

Description

一种OPPC光缆的光单元直接引下构造及其施工方法 技术领域
本发明涉及一种OPPC光缆的光单元直接引下构造及其施工方法。
背景技术
光纤复合相线(Optical Phase Conductor，以下简称OPPC)将光单元复合在相线中，在传送电能的同时又可以传送光信号，架设送电线路的同时，沿线同时建成了光信号传送链路，一物两用既省材料又省工。
2009年始广东电网公司开发了新型的OPPC光单元分离引下技术，这种新的技术避免了原有OPPC施工中两大困扰：其一是预先根据接口位置距离，定长配盘订货；其二是要在杆塔上安装对地高压绝缘的接线装置，将光单元接续一段全绝缘的普通光缆。
新的施工技术，解除了传统施工方法的困扰，现场应用的结果表明，它不但做到了免除定缆长配盘和无需登高熔接，还可以采用常规的线路接续金具。
2014年，广东电网再开发出沿用2009年光电分离原理的塑管光单元直接引下新技术。经过一系列的计算和试验，同年11月14日，在江门供电局110kV开岗线完成架设，投入运行。
塑管光单元的OPPC，使引下段的高电压绝缘问题变得相当容易解决，同时光单元的制造成本大幅下降，施工更加方便。
然而目前所达成的OPPC光单元分离引下技术还有一定的局限性：
其一，一般的OPPC光缆，是将光单元放在内层。从加强光单元的保护来说，是合理的做法。但2009年开发的光单元分离套管在装配的时候，是要求光单元放在次外层。
其二，遇到复合光缆是双光单元的时候，要将两个光单元都分离引下，难度极大。
第三，由于耐张金具安装于光单元分离后的缆段，故不利于盘留将来维修用的余缆。
为了加快智能电网的实现，国家已经要求在进行10千伏配电线路建设的同时，电网自动控制的通信链路应该同步建设。因此有必要继续克服2009版光电分离技术尚存的缺点，以便快速推进配电线路光电同步建设的目标。
发明内容
本发明所要解决的技术问题是：提供一种OPPC光缆的光单元直接引下构造及其施工方法。
解决上述技术问题，本发明所采用的技术方案如下：
一种OPPC光缆的光单元直接引下构造，设有OPPC光缆、预绞丝组件、第一连接金具、第二连接金具、绝缘子串和电连接跳线，所述预绞丝组件安装在所述OPPC光缆上，且所述预绞丝组件依次通过所述第一连接金具和第二连接金具连接所述绝缘子串的一端，所述绝缘子串的另一端连接在铁塔或电线杆的横担上，所述电连接跳线安装在所述OPPC光缆上，其中，所述OPPC光缆由塑管光单元、多根钢线和多根铝线绞合而成，其特征在于：所述的光单元直接引下构造还设有光单元引出接头；
所述光单元引出接头设有基座、上盖、引出管和绝缘密封组件，其中，所述基座为设有盖口和引出孔的异型管体，所述基座沿轴向依次划分为复合段、分离段和复原段，所述盖口开设在所述基座的管壁顶部并贯穿所述复合段和分离段且覆盖部分所述复原段，所述引出孔开设在所述基座的管壁底部并位于所述分离段中，所述引出管为具有异径管腔的异型管体，所述异径管腔由第一管腔、第二管腔和第三管腔依次相连组成，所述第二管腔为半球形管腔，所述引出管位于所述第三管腔所在一侧的端部设有外螺纹，所述绝缘密封组件设有球形密封垫圈、绝缘护套、加强套管和紧固螺帽，所述绝缘护套为具有半球形管腔和主管腔且由大径管部与小径管部相连构成的变径管体，所述半球形管腔位于所述大径管部的端部位置，所述主管腔穿过所述小径管部并与所述半球形管腔相连，所述加强套管位于其中一个端部位置的外壁设有外凸台，所述紧固螺帽位于其中一个端部位置的内壁设有内凸台；所述引出管与所述基座相连，使得所述第一管腔通过所述引出孔与所述基座的管腔连通；
所述OPPC光缆位于尾部的光缆段通过剥除覆盖所述塑管光单元的外层股线分离成保留股线和所述塑管光单元，并且，所述保留股线被剪断末端成为长度比所述分离段与复原段的长度之和长△L的股线段，其中，△L在1cm至2cm之间；
所述被分离出来的塑管光单元通过所述引出孔伸入所述引出管的异径管腔中，所述保留股线穿入所述基座的管腔中，且所述复原段电缆长度为△L的末端伸出到所述基座之外，使得所述保留股线的左端位于所述之分离段，然后套入其外径与官腔和内径与保留股线相应的软铝管，填充复原段(D3)留下的空间从而形成相应的完整复原段电缆， 并且，所述基座位于所述复原段一侧的端部通过液压钳，压紧在所述复原段电缆上，所述伸入引出管异径管腔中的塑管光单元通过所述绝缘密封组件引出，所述上盖盖合在所述盖口上；
其中，所述伸入引出管异径管腔中的塑管光单元通过所述绝缘密封组件引出的安装方式为：所述球形密封垫圈和所述绝缘护套的大径管部依次安装到所述第二管腔和第三管腔中，使得所述球形密封垫圈位于所述第二管腔与半球形管腔所组成的球形腔体中、且所述引出管的第一管腔通过所述球形密封垫圈的中心通孔与所述主管腔连通；所述伸入引出管异径管腔中的塑管光单元通过所述球形密封垫圈的中心通孔和所述主管腔穿出；所述加强套管套装在所述小径管部上，并使所述外凸台坐落在所述大径管部上；所述紧固螺帽套装在所述加强套管上并与所述外螺纹连接，使得所述紧固螺帽的内凸台依次通过所述外凸台和大径管部将所述球形密封垫圈压紧在所述第二管腔与半球形管腔所组成的球形腔体中，并使得所述球形密封垫圈被压紧在所述塑管光单元上。
作为本发明的改进实施方式：所述OPPC光缆设有两根所述塑管光单元；所述光单元引出接头设有两根所述引出管和两套所述绝缘密封组件，所述上盖设有上盖引出孔，且所述上盖引出孔在所述上盖盖合在所述盖口上时位于所述复合段；第一根所述引出管与所述基座相连，使得第一根所述第一管腔通过所述引出孔与所述基座的管腔连通，第二根所述引出管与所述上盖的外壁相连，使得第二根所述第一管腔通过所述上盖引出孔与所述基座的管腔连通；所述两根塑管光单元均通过剥除所述外层股线与所述保留股线分离，第一根所述被分离出来的塑管光单元通过所述引出孔伸入所述连接基座的出管的异径管腔中并通过第一套所述绝缘密封组件引出，第二根所述被分离出来的塑管光单元通过所述上盖引出孔伸入连接所述上盖的引出管的异径管腔中并通过第二套所述绝缘密封组件引出。
为了便于塑管光单元的引出，作为本发明的优选实施方式：所述引出管由第一管腔向第三管腔的轴向方向与所述引出管由复合段向复原段的轴向方向形成锐角夹角。
为了便于塑管光单元伸入引出管的异径管腔中，作为本发明的优选实施方式：所述第一管腔为管径沿由第一管腔向第三管腔的轴向方向逐渐变小的锥台形管腔。
为了确保光单元引出接头的强度，作为本发明的优选实施方式：所述基座与引出管之间连接有三角形加强部，所述基座、引出管和三角形加强部一体成型。
为了确保光单元引出接头的强度，作为本发明的优选实施方式：所述盖合在盖 口上的上盖通过螺栓与所述基座连接固定。
作为本发明的改进实施方式：所述OPPC光缆在所述预绞丝组件的安装位置与所述光单元引出接头的安装位置之间留有维修用的余缆段；所述的光单元直接引下构造还设有余缆架；所述余缆架连接在所述第一连接金具与第二连接金具之间；所述余缆段盘绕在所述余缆架上。
作为本发明的优选实施方式：所述的余缆架由水平拉杆和上端固定在所述水平拉杆中部的垂直拉杆组成，且所述水平拉杆和垂直拉杆上均安装有线耳，所述水平拉杆连接在所述第一连接金具与第二连接金具之间，所述余缆段通过所述线耳盘绕在所述余缆架上。
一种OPPC光缆的光单元直接引下构造施工方法，其特征在于：所述光单元直接引下构造为上述光单元直接引下构造，所述的施工方法包括：
步骤1、在地面上完成所述OPPC光缆与光单元引出接头的连接，包括：
步骤1-1，将OPPC光缆位于尾部的光缆段制成所述保留股线和被分离出来的塑管光单元；
步骤1-2，先将被分离出来的塑管光单元伸入所述引出管的异径管腔中，所述保留股线穿入所述基座的管腔中，于△L端套入其外径与官腔和内径与保留股线和所留空间相应的软铝管，填充复原段(D3)留下的空间从而形成相应的完整复原段电缆，再将所述再将所述上盖盖合在所述基座的盖口上，并用液压钳将所述基座位于所述复原段一侧的端部压紧在所述复原段电缆上；
步骤1-3，将所述伸入引出管异径管腔中的塑管光单元通过所述绝缘密封组件引出，并且，将通过所述绝缘密封组件引出的塑管光单元暂时盘绕起来，其中，所述通过绝缘密封组件引出的塑管光单元伸入引出管异径管腔后再通过所述球形密封垫圈的中心通孔和所述绝缘护套的主管腔穿出的部分；
步骤2、在地面上将所述预绞丝组件和电连接跳线安装在所述OPPC光缆上，其中，所述OPPC光缆在所述预绞丝组件的安装位置与所述光单元引出接头的安装位置之间留有维修用的余缆段；
步骤3、在地面上将所述预绞丝组件依次通过所述第一连接金具、余缆架和第二连接金具连接所述绝缘子串的一端，并将所述余缆段盘绕在所述余缆架上；
步骤4、将所述绝缘子串的另一端吊起并连接在铁塔或电线杆的横担上，以将所 述OPPC光缆、预绞丝组件、第一连接金具、余缆架、第二连接金具、绝缘子串和电连接跳线拉到高空中；
步骤5、放开所述被暂时盘绕起来的塑管光单元并将其固定在所述铁塔或电线杆上，以实现对所述OPPC光缆的塑管光单元直接引下。
与现有技术相比，本发明具有以下有益效果：
第一，本发明的光单元直接引下构造能够将挂在高空中的OPPC光缆的塑管光单元分离出来并直接引下，并且，适用于塑管光单元安装在OPPC光缆内任意位置的OPPC光缆，避免了现有OPPC光单元分离引下技术存在仅适用于光单元位于次外层的OPPC光缆的限制问题；
第二，本发明的光单元引出接头通过增设一套绝缘密封组件和一根连接在上盖上的引出管，能够实现包含有两根塑管光单元的OPPC光缆的塑管光单元分离和直接引下；
第三，本发明的光单元直接引下构造通过余缆架，能够在高空中盘绕留有维修用的OPPC光缆余缆段，为以后的事故处理或检修维护保留一定的方便性；
第四，本发明的光单元直接引下构造施工方法能够在地面上完成“OPPC光缆与光单元引出接头的连接，预绞丝组件、第一连接金具、余缆架、第二连接金具和绝缘子串的连接安装，以及余缆段的盘绕”后，再拉到高空中连接到铁塔或电线杆的横担上，最后实现塑管光单元的直接引下，因此，本发明能够避免常规光单元直接引下构造施工方法需要在铁塔或电线杆所在的高空中进行施工而存在施工不便、难以作质检的问题，具有施工简易方便的优点。
附图说明
下面结合附图和具体实施例对本发明作进一步的详细说明：
图1-1为本发明实施例一的光单元引出接头的主视剖面结构爆炸图；
图1-2为本发明实施例一的光单元引出接头的左视图；
图1-3为本发明实施例一的光单元引出接头中上盖的俯视图；
图2为OPPC光缆的剖面结构示意图；
图3为本发明实施例一的光单元引出接头安装在OPPC光缆上的主视剖面结构示意图；
图4为应用本发明实施例一的光单元引出接头的光单元直接引下构造的主视剖面结构示意图；
图5-1为本发明实施例二的光单元引出接头的主视剖面结构爆炸图；
图5-2为本发明实施例二的光单元引出接头的左视图；
图5-3为本发明实施例二的光单元引出接头中上盖的俯视图；
图6为本发明实施例二的光单元引出接头安装在OPPC光缆上的主视剖面结构示意图；
图7为本发明复原段套入软铝管的结构示意图。
具体实施方式
实施例一
如图1-1至图4所示，本发明实施例一的OPPC光缆的光单元直接引下构造，设有OPPC光缆1、光单元引出接头2、预绞丝组件3、第一连接金具4、余缆架5、第二连接金具6、绝缘子串7和电连接跳线8，其中，余缆架5由水平拉杆51和上端固定在水平拉杆51中部的垂直拉杆52组成，水平拉杆51和垂直拉杆52上均安装有线耳53。
上述预绞丝组件3安装在OPPC光缆1上，且预绞丝组件3依次通过第一连接金具4、余缆架5的水平拉杆51和第二连接金具6连接绝缘子串7的一端，绝缘子串7的另一端连接在铁塔或电线杆的横担上，电连接跳线8安装在OPPC光缆1上，其中，OPPC光缆1由塑管光单元11、多根钢线12和多根铝线13绞合而成，塑管光单元11为套有绝缘材料套管(即塑管)的光单元，其能够将高电压隔离；OPPC光缆1的两端分别会通过两组预绞丝组件3、第一连接金具4、第二连接金具6和绝缘子串7连接在两个铁塔(或电线杆)的横担上，而预绞丝组件3在OPPC光缆1上的安装位置由OPPC光缆1、预绞丝组件3、第一连接金具4、第二连接金具6和绝缘子串7连接在铁塔或电线杆的横担上后的垂下程度而定，即OPPC光缆常规施工中的调弧垂步骤。
述光单元引出接头2设有基座21、上盖22、引出管23和绝缘密封组件24，且基座21与引出管23之间连接有三角形加强部25，基座21、引出管23和三角形加强部25一体成型。其中，基座21为设有盖口21a和引出孔21b的异型管体，基座21沿轴向依次划分为复合段D1、8厘米左右的分离段D2和复原段D3，盖口21a开设在基座21的管壁顶部并贯穿复合段D1和分离段D2且覆盖部分复原段D3，引出孔21b开设在基座21的管壁底部并位于分离段D2中，引出管23为具有异径管腔的异型管体，异径管腔由第一管腔23a、第二管腔23b和第三管腔23c依次相连组成，第一管腔23a为管径沿由第一管腔23a向第三管腔23c的轴向方向逐渐变小的锥台形管腔，第二管腔23b为半球 形管腔，引出管23位于第三管腔23c所在一侧的端部设有外螺纹231，绝缘密封组件24设有球形密封垫圈241、绝缘护套242、加强套管243和紧固螺帽244，绝缘护套242为具有半球形管腔242a和主管腔242b且由大径管部2421与小径管部2422相连构成的变径管体，半球形管腔242a位于大径管部2421的端部位置，主管腔242b穿过小径管部2422并与半球形管腔242a相连，加强套管243位于中一个端部位置的外壁设有外凸台2431，紧固螺帽244位于中一个端部位置的内壁设有内凸台2441；引出管23与基座21相连，使得引出管23的第一管腔23a通过引出孔21b与基座21的管腔连通，并且，引出管23由第一管腔23a向第三管腔23c的轴向方向与引出管23由复合段D1向复原段D3的轴向方向形成锐角夹角。
上述OPPC光缆1位于尾部的光缆段通过剥除覆盖塑管光单元11的外层股线分离成保留股线14和塑管光单元11，并且，保留股线14被剪断末端成为长度比分离段D2与复原段D3的长度之和长△L的股线段，其中，△L在1cm至2cm之间。
上述被分离出来的塑管光单元11通过所述引出孔21b伸入所述引出管23的异径管腔中，所述保留股线穿入所述基座21的管腔中，且所述复原段电缆长度为△L的末端伸出到所述基座之外，使得所述保留股线14的左端位于所述之分离段D2，然后从△L的末端套入其外径与官腔和内径与保留股线和所留空间相应的软铝管，填充复原段留下的空间从而形成相应的完整复原段电缆。并且，所述基座位于所述复原段一侧的端部通过液压钳，压紧在所述复原段电缆上。伸入引出管23异径管腔中的塑管光单元11通过绝缘密封组件24引出，上盖22盖合在基座21的盖口21a上并通过螺栓26与基座21连接固定。
其中，上述伸入引出管23异径管腔中的塑管光单元11通过绝缘密封组件24引出的安装方式为：球形密封垫圈241和绝缘护套242的大径管部2421依次安装到引出管23的第二管腔23b和第三管腔23c中，使得球形密封垫圈241位于引出管23的第二管腔23b与绝缘护套242的半球形管腔242a所组成的球形腔体中、且引出管23的第一管腔23a通过球形密封垫圈241的中心通孔与绝缘护套242的主管腔242b连通；伸入引出管23异径管腔中的塑管光单元11通过球形密封垫圈241的中心通孔和绝缘护套242的主管腔242b穿出；加强套管243套装在绝缘护套242的小径管部2422上，并使加强套管243的外凸台2431坐落在绝缘护套242的大径管部2421上；紧固螺帽244套装在加强套管243上并与引出管23的外螺纹231连接，使得紧固螺帽244的内凸台2441 依次通过加强套管243的外凸台2431和绝缘护套242的大径管部2421将球形密封垫圈241压紧在引出管23的第二管腔23b与绝缘护套242的半球形管腔242a所组成的球形腔体中，并使得球形密封垫圈241被压紧在塑管光单元11上；从而，利用球形密封垫圈241避免外部的水汽进入光单元引出接头2的内腔中。另外，对于10千伏线路来说，通过绝缘密封组件24引出的塑管光单元11预留长度15米就可以达到地面做熔接或者成端，其中，通过绝缘密封组件24引出的塑管光单元11即塑管光单元11伸入引出管23异径管腔后再通过球形密封垫圈241的中心通孔和绝缘护套242的主管腔242b穿出的部分。
上述OPPC光缆1在预绞丝组件3的安装位置与光单元引出接头2的安装位置之间留有维修用的余缆段16，该余缆段16通过线耳53盘绕在余缆架5上。
上述OPPC光缆的光单元直接引下构造施工方法，包括：
步骤S1、在地面上完成OPPC光缆1与光单元引出接头2的连接，包括：
步骤S1-1，将OPPC光缆1位于尾部的光缆段制成保留股线14、复原段电缆15和被分离出来的塑管光单元11；
步骤S1-2，先将保留股线14和复原段电缆15穿入基座21的管腔中、将被分离出来的塑管光单元11伸入引出管23的异径管腔中，再将上盖22盖合在基座21的盖口21a上，并用液压钳将基座21位于复原段D3一侧的端部压紧在复原段电缆15上；
步骤S1-3，将伸入引出管23异径管腔中的塑管光单元11通过绝缘密封组件24引出，并且，将通过绝缘密封组件24引出的塑管光单元11暂时盘绕起来，其中，通过绝缘密封组件24引出的塑管光单元11即塑管光单元11伸入引出管23异径管腔后再通过球形密封垫圈241的中心通孔和绝缘护套242的主管腔242b穿出的部分；
步骤S2、在地面上将预绞丝组件3和电连接跳线8安装在OPPC光缆1上，其中，OPPC光缆1在预绞丝组件3的安装位置与光单元引出接头2的安装位置之间留有维修用的余缆段16；
步骤S3、在地面上将预绞丝组件3依次通过第一连接金具4、余缆架5和第二连接金具6连接绝缘子串7的一端，并将余缆段16盘绕在余缆架5上；
步骤S4、将绝缘子串7的另一端吊起并连接在铁塔或电线杆的横担上，以将OPPC光缆1、预绞丝组件3、第一连接金具4、余缆架5、第二连接金具6、绝缘子串7和电连接跳线8拉到高空中；
步骤S5、放开被暂时盘绕起来的塑管光单元11并将其固定在铁塔或电线杆上，以实现对OPPC光缆1的塑管光单元11直接引下。
实施例二
如图5-1至图6所示，本发明实施例二的光单元直接引下构造与实施例一基本相同，它们的区别在于：本实施例二中，光单元引出接头2设有两根引出管23和两套绝缘密封组件24，上盖22设有上盖引出孔22a，且上盖引出孔22a在上盖22盖合在基座21的盖口21a上时位于复合段D1；第一根引出管23与基座21相连，使得第一根引出管23的第一管腔23a通过引出孔21b与基座21的管腔连通，第二根引出管23与上盖22的外壁相连，使得第二根引出管23的第一管腔23a通过上盖引出孔22a与基座21的管腔连通。并且，OPPC光缆1设有两根塑管光单元11；两根塑管光单元11均通过剥除外层股线与保留股线14分离，第一根被分离出来的塑管光单元11通过引出孔21b伸入连接基座21的出管23的异径管腔中并通过第一套绝缘密封组件24引出，第二根被分离出来的塑管光单元11通过上盖引出孔22a伸入连接上盖22的引出管23的异径管腔中并通过第二套绝缘密封组件24引出。
本实施例二的光单元直接引下构造的施工方法与实施例一相同，在此不再赘述。
本发明不局限于上述具体实施方式，根据上述内容，按照本领域的普通技术知识和惯用手段，在不脱离本发明上述基本技术思想前提下，本发明还可以做出其它多种形式的等效修改、替换或变更，均落在本发明的保护范围之中。

Claims (9)

  1. 一种OPPC光缆的光单元直接引下构造，设有OPPC光缆(1)、预绞丝组件(3)、第一连接金具(4)、第二连接金具(6)、绝缘子串(7)和电连接跳线(8)，所述预绞丝组件(3)安装在所述OPPC光缆(1)上，且所述预绞丝组件(3)依次通过所述第一连接金具(4)和所述第二连接金具(6)并且连接所述绝缘子串(7)的一端，所述绝缘子串(7)的另一端连接在铁塔或电线杆的横担上，所述电连接跳线(8)安装在所述OPPC光缆(1)上，其中，所述OPPC光缆(1)由塑管光单元(11)、多根钢线(12)和多根铝线(13)绞合而成，其特征在于：所述的光单元直接引下构造还设有光单元引出接头(2)；
    所述光单元引出接头(2)设有基座(21)、上盖(22)、引出管(23)和绝缘密封组件(24)，其中，所述基座(21)为设有盖口(21a)和引出孔(21b)的异型管体，所述基座(21)沿轴向依次划分为复合段(D1)、分离段(D2)和复原段(D3)，所述盖口(21a)开设在所述基座(21)的管壁顶部并贯穿所述复合段(D1)和所述分离段(D2)且覆盖部分所述复原段(D3)，所述引出孔(21b)开设在所述基座(21)的管壁底部并位于所述分离段(D2)中，所述引出管(23)为具有异径管腔的异型管体，所述异径管腔由第一管腔(23a)、第二管腔(23b)和第三管腔(23c)依次相连组成，所述第二管腔(23b)为半球形管腔，所述引出管(23)位于所述第三管腔(23c)所在一侧的端部设有外螺纹(231)，所述绝缘密封组件(24)设有球形密封垫圈(241)、绝缘护套(242)、加强套管(243)和紧固螺帽(244)，所述绝缘护套(242)为具有半球形管腔(242a)和主管腔(242b)且由大径管部(2421)与小径管部(2422)相连构成的变径管体，所述半球形管腔(242a)位于所述大径管部(2421)的端部位置，所述主管腔(242b)穿过过所述小径管部(2422)并与所述半球形管腔(242a)相连，所述加强套管(243)位于其中一个端部位置的外壁设有外凸台(2431)，所述紧固螺帽(244)位于其中一个端部位置的内壁设有内凸台(2441)；所述引出管(23)与所述基座(21)相连，使得所述第一管腔(23a)通过所述引出孔(21b)与所述基座(21)的管腔连通；
    所述OPPC光缆(1)位于尾部的光缆段通过剥除覆盖所述塑管光单元(11)的外层股线分离成保留股线(14)和所述塑管光单元(11)，并且，所述保留股线(14)被剪断末端成为长度比所述分离段(D2)与复原段(D3)的长度之和长△L的股线段，其中，△L在1cm至2cm之间；
    所述被分离出来的塑管光单元(11)通过所述引出孔(21b)伸入所述伸入引出管(23) 的异径管腔中，并且将保留股线(14)穿入所述基座(21)的管腔中并位于所述复原段(D3)位置，且长度为△L的末端伸出到所述基座(21)之外，使得所述保留股线(14)的左端位于所述分离段(D2)，此时于△L一侧的端部，套入外径与管腔和内径与保留股线(14)相应的软铝管(27)，填充复原段(D3)留下的空间形成完整的复原段(D3)，然后，通过液压钳将基座压紧在复原段电缆(15)上，所述伸入引出管(23)异径管腔中的塑管光单元(11)通过所述绝缘密封组件(24)引出，所述上盖(22)盖合在所述盖口(21a)上；
    其中，所述伸入引出管(23)异径管腔中的所述塑管光单元(11)通过所述绝缘密封组件(24)引出的安装方式为：所述球形密封垫圈(241)和所述绝缘护套(242)的所述大径管部(2421)依次安装到所述第二管腔(23b)和所述第三管腔(23c)中，使得所述球形密封垫圈(241)位于所述第二管腔(23b)与所述半球形管腔(242a)所组成的球形腔体中、且所述第一管腔(23a)通过所述球形密封垫圈(241)的中心通孔与所述主管腔(242b)连通；所述伸入引出管(23)异径管腔中的所述塑管光单元(11)通过所述球形密封垫圈(241)的中心通孔和所述主管腔(242b)穿出；所述加强套管(243)套装在所述小径管部(2422)上，并使所述外凸台(2431)坐落在所述大径管部(2421)上；所述紧固螺帽(244)套装在所述加强套管(243)上并与所述外螺纹(231)连接，使得所述内凸台(2441)依次通过所述外凸台(2431)和所述大径管部(2421)将所述球形密封垫圈(241)压紧在所述第二管腔(23b)与所述绝缘护套(242)的所述半球形管腔(242a)所组成的球形腔体中，并使得所述球形密封垫圈(241)被压紧在所述塑管光单元(11)上。
  2. 根据权利要求1所述的光单元直接引下构造，其特征在于：所述OPPC光缆(1)设有两根所述塑管光单元(11)；所述光单元引出接头(2)设有两根所述引伸入出管(23)和两套所述绝缘密封组件(24)，所述上盖(22)设有上盖引出孔(22a)，且所述上盖引出孔(22a)在所述上盖(22)盖合在所述盖口(21a)上时位于所述复合段(D1)；第一根所述引出管(23)与所述基座(21)相连，使得第一根所述第一管腔(23a)通过所述引出孔(21b)与所述基座(21)的管腔连通，第二根所述引出管(23)与所述上盖(22)的外壁相连，使得第二根所述第一管腔(23a)通过所述上盖引出孔(22a)与所述基座(21)的管腔连通；所述两根塑管光单元(11)均通过剥除所述外层股线与所述保留股线(14)分离，第一根被分离出来的所述塑管光单元(11)通过所述引出孔(21b)伸入所述连接基座(21)以及所述引出管(23)的异径管腔中并通过第一套所述绝缘密封组件(24)引出，第二根被分离出来的所述塑管光单元(11)通过所述上盖引出孔(22a)伸入连接所述上盖(22)的所述引出管(23)的 异径管腔中并通过第二套所述绝缘密封组件(24)引出。
  3. 根据权利要求1所述的光单元直接引下构造，其特征在于：所述引出管(23)由所述第一管腔(23a)向所述第三管腔(23c)的轴向方向与所述引出管(23)由所述复合段(D1)向所述复原段(D3)的轴向方向形成锐角夹角。
  4. 根据权利要求3所述的光单元直接引下构造，其特征在于：所述第一管腔(23a)为管径沿由所述第一管腔(23a)向所述第三管腔(23c)的轴向方向逐渐变小的锥台形管腔。
  5. 根据权利要求3所述的光单元直接引下构造，其特征在于：所述基座(21)与所述伸入引出管(23)之间连接有三角形加强部(25)，所述基座(21)、所述引出管(23)和所述三角形加强部(25)一体成型。
  6. 根据权利要求1所述的光单元直接引下构造，其特征在于：盖合在所述盖口(21a)上的所述上盖(22)通过螺栓(26)与所述基座(21)连接固定。
  7. 根据权利要求1至6任意一项所述的光单元直接引下构造，其特征在于：所述OPPC光缆(1)在所述预绞丝组件(3)的安装位置与所述光单元引出接头(2)的安装位置之间留有维修用的余缆段(16)；所述的光单元直接引下构造还设有余缆架(5)；所述余缆架(5)连接在所述第一连接金具(4)与所述第二连接金具(6)之间；所述余缆段(16)盘绕在所述余缆架(5)上。
  8. 根据权利要求7所述的光单元直接引下构造，其特征在于：所述余缆架(5)由水平拉杆(51)和上端固定在所述水平拉杆(51)中部的垂直拉杆(52)组成，且所述水平拉杆(51)和所述垂直拉杆(52)上均安装有线耳(53)，所述水平拉杆(51)连接在所述第一连接金具(4)与所述第二连接金具(6)之间，所述余缆段(16)通过所述线耳(53)盘绕在所述余缆架(5)上。
  9. 一种OPPC光缆的光单元直接引下构造施工方法，其特征在于：所述光单元直接引下构造为权利要求7所述的光单元直接引下构造，所述的施工方法包括：
    步骤1、在地面上完成所述OPPC光缆(1)与所述光单元引出接头(2)的连接，包括：
    步骤1-1，将OPPC光缆(1)位于尾部的光缆段制成所述保留股线(14)、复原段电缆之未复原段(15)和被分离出来的所述塑管光单元(11)；
    步骤1-2，先将所述被分离出来的所述塑管光单元(11)伸入所述引出管(23)的异径管腔中，再将所述保留股线(14)穿入所述基座(21)的管腔中，再套入填充空间用的软铝 管(27)形成完整的所述复原段(D3)电缆，然后将所述上盖(22)盖合在所述基座(21)的盖口(21a)上，并用液压钳将所述基座(21)位于所述复原段(D3)一侧的端部压紧在所述复原段电缆(15)上；
    步骤1-3，将所述伸入引出管(23)异径管腔中的所述塑管光单元(11)通过所述绝缘密封组件(24)引出，并且，将通过所述绝缘密封组件(24)引出的塑管光单元(11)暂时盘绕起来，其中，所述通过绝缘密封组件(24)引出的塑管光单元(11)伸入所述引出管(23)异径管腔后再通过所述球形密封垫圈(241)的中心通孔和所述绝缘护套(242)的主管腔(242b)穿出的部分；
    步骤2、在地面上将所述预绞丝组件(3)和所述电连接跳线(8)安装在所述OPPC光缆(1)上，其中，所述OPPC光缆(1)在所述预绞丝组件(3)的安装位置与所述光单元引出接头(2)的安装位置之间留有维修用的余缆段(16)；
    步骤3、在地面上将所述预绞丝组件(3)依次通过所述第一连接金具(4)、所述余缆架(5)和所述第二连接金具(6)连接所述绝缘子串(7)的一端，并将所述余缆段(16)盘绕在所述余缆架(5)上；
    步骤4、将所述绝缘子串(7)的另一端吊起并连接在铁塔或电线杆的横担上，以将所述OPPC光缆(1)、所述预绞丝组件(3)、所述第一连接金具(4)、所述余缆架(5)、所述第二连接金具(6)、所述绝缘子串(7)和所述电连接跳线(8)拉到高空中；
    步骤5、放开被暂时盘绕起来的所述塑管光单元(11)并将其固定在所述铁塔或电线杆上，以实现对所述OPPC光缆(1)的所述塑管光单元(11)直接引下。
PCT/CN2017/095409 2016-08-29 2017-08-01 一种oppc光缆的光单元直接引下构造及其施工方法 WO2018040827A1 (zh)

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