CN112433317A - 10kV insulated phase line optical cable installation device and method - Google Patents
10kV insulated phase line optical cable installation device and method Download PDFInfo
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- CN112433317A CN112433317A CN202011409472.4A CN202011409472A CN112433317A CN 112433317 A CN112433317 A CN 112433317A CN 202011409472 A CN202011409472 A CN 202011409472A CN 112433317 A CN112433317 A CN 112433317A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 85
- 238000009434 installation Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000013307 optical fiber Substances 0.000 claims abstract description 91
- 230000001681 protective effect Effects 0.000 claims abstract description 76
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 26
- 239000010935 stainless steel Substances 0.000 claims abstract description 26
- 239000011248 coating agent Substances 0.000 claims abstract description 21
- 238000000576 coating method Methods 0.000 claims abstract description 21
- 238000004804 winding Methods 0.000 claims abstract description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 15
- 238000009413 insulation Methods 0.000 claims abstract description 15
- 238000004806 packaging method and process Methods 0.000 claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 239000004519 grease Substances 0.000 claims abstract description 7
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 7
- 239000000835 fiber Substances 0.000 claims description 5
- 239000012212 insulator Substances 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims 1
- 238000009826 distribution Methods 0.000 description 47
- 238000012423 maintenance Methods 0.000 description 14
- 238000004891 communication Methods 0.000 description 11
- 238000000926 separation method Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 8
- 230000015556 catabolic process Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 206010014357 Electric shock Diseases 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010014405 Electrocution Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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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
- G02B6/4401—Optical cables
- G02B6/4415—Cables for special applications
- G02B6/4416—Heterogeneous cables
- G02B6/4417—High voltage aspects, e.g. in cladding
- G02B6/442—Insulators
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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
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
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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
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
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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
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
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Abstract
A10 kV insulated phase line optical cable installation device is characterized in that an optical fiber splice box (11) is arranged on a line steel pipe rod (12), an optical fiber (13) and an aluminum stranded wire are arranged inside a 10kV insulated phase line optical cable (1), and the installation device comprises an inner protective sleeve (6), an outer protective sleeve (3), a stainless steel protective sleeve (14), a fastening sleeve (5), a winding protective sleeve (4) and a waterproof sleeve (2); after the 10kV insulated phase line optical cable is cut, fastening the end part of the aluminum stranded wire by using a fastening sleeve, and keeping a certain length of a stainless steel protective tube in the optical cable; coating water-blocking paste on the stainless steel protective pipe section in the optical cable at the position of the fastening sleeve, which is close to the outer insulation side of the OPOC optical cable, coating silicone grease on the reserved optical fiber, sleeving the optical fiber by using an inner protective sleeve, and sleeving the optical fiber outside an inner protective sleeve of the optical fiber by winding an protective sleeve; the water-blocking paste is coated outside the protective tube of completely and then sleeved in the outer protective tube; and (4) coating water-blocking paste at two ends of the fastening sleeve, and then sleeving the fastening sleeve into the waterproof sleeve for thermal shrinkage packaging. There are also methods.
Description
Technical Field
The invention relates to the technical field of special electric power optical cables, in particular to a 10kV insulated phase line optical cable installation device and a 10kV insulated phase line optical cable installation method.
Background
The application of the insulated phase line optical cable (OPOC) on the power distribution network improves the safe operation rate of the power distribution optical fiber communication network, simultaneously promotes the safe reliability of the power distribution network 10kV and below voltage class uninterrupted operation inspection and maintenance OPOC optical fiber splice closure, reduces the operation and detection cost of the power distribution network, promotes the economic benefit of the power distribution network, and promotes the application of the power distribution network intelligent technology.
At present, the application of OPOC optical cable technology in China is in the initial stage. Because the application of the OPOC optical cable technology in engineering has some installation technical problems, the application of the OPOC optical cable technology on a power distribution network line is limited. The problem of OPOC optical cable because of the installation design in service has exposed, lead to the problem of the disconnected strand of fiber of burning in the OPOC splice closure in service, because of when seeking optic fibre splice failure, need apply for to have a power failure or live working again, this kind of maintenance operation mode causes the risk of electrocution for the maintenance operation personnel, influences the distribution network power supply operating rate simultaneously, leads to the fact economic loss for society and power supply enterprise.
At present, OPOC optical cable installation method adopts pillar T type photoelectricity separation splice closure, and the splice closure both ends business turn over cable terminal tightly fixes the end of OPOC optical cable, because OPOC optical cable end is electrified body part, causes the splice closure to move under the electrified state, easily causes the splice closure inside to discharge, punctures and burns out optic fibre, direct influence distribution optical fiber communication network safe operation rate, causes the risk that has the electric shock for communication maintenance splice closure simultaneously, has increased and has overhauld the operation danger.
The main problems of the prior art are as follows: the current connection installation method of an insulated phase line optical cable (OPOC) in China adopts a photoelectric separation type splice closure, and the end position of an aluminum stranded wire of a charged body part of the OPOC optical cable is fastened at an inlet and outlet port of the splice closure.
Because the OPOC optical cable aluminum stranded wire electrified body is connected to the inlet and outlet terminals of the optical cable splice closure, the optical cable splice closure is caused to operate in a long-term electrified mode, the optical fiber is frequently burnt out due to discharging and breakdown in the optical fiber splice closure, meanwhile, the electric shock danger is brought to distribution communication operation and maintenance workers, and the electric shock risk of field operation is increased.
In order to ensure the personal safety of distribution communication operation and maintenance operators, the distribution line power failure maintenance optical fiber splice box is required to find optical fiber faults, the power failure maintenance directly influences the power supply operation rate of the distribution network, the operation and maintenance cost of the distribution network is increased, and the economic benefit of a distribution enterprise is reduced.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the 10kV insulated phase line optical cable installation device, which solves the problem that an optical cable splice closure is overhauled without power outage to search for optical fiber faults, improves the safety of field operation, reduces the power failure of a power distribution network, promotes the safe operation rate of a power distribution optical fiber communication network, promotes the power supply operation rate of the power distribution network, reduces the operation and inspection cost of the power distribution network, and promotes the economic benefits of power distribution network enterprises.
The technical scheme of the invention is as follows: according to the installation device for the 10kV insulated phase line optical cable, an optical fiber splice box (11) is arranged on a line steel pipe rod (12), the inside of the 10kV insulated phase line optical cable (1) comprises optical fibers (13) and aluminum stranded wires, and the installation device comprises an inner protective sleeve (6), an outer protective sleeve (3), a stainless steel protective sleeve (14), a fastening sleeve (5), a winding protective sleeve (4) and a waterproof sleeve (2);
after the 10kV insulated phase line optical cable (1) is cut, the end part of an aluminum stranded wire is fastened by a fastening sleeve (5), and a stainless steel protective tube (14) in the optical cable is kept for a certain length; coating water-blocking paste on the section of the fastening sleeve (5) close to the outer insulation side of the OPOC optical cable to the stainless steel protective tube (14) in the optical cable, then coating silicone grease on the reserved optical fiber, sleeving the optical fiber (13) by using the inner protective sleeve (6), and sleeving the outer side of the inner protective sleeve (6) of the optical fiber by winding protective sleeve (4); the waterproof paste is coated outside the protective tube (4) of the winding completely and then sleeved in the outer protective tube (3); the two ends of the fastening sleeve (5) are fully coated with the water-blocking paste, and then the waterproof sleeve (2) is sleeved for thermal shrinkage packaging.
The invention adopts the method of the multilayer pipe sleeve protection to continue the optical fiber splicing cable, replaces the insulation separation method of the photoelectric separation splicing box, and the cut optical fiber splicing cable can be used in a 10kV distribution line for a long time without generating discharge electric breakdown in the optical fiber splicing box to blow the optical fiber due to the design of the multilayer pipe sleeve protection, thereby ensuring the uncharged state of the optical fiber splicing box body and the personal safety of maintenance operators. The multilayer pipe sleeve method has an insulation function of resisting 10kV distribution line voltage, can protect the optical fiber from being damaged, facilitates optical fiber connection, reduces connection cost, eliminates the electrification of a connection box body, solves the problem of maintaining an optical cable connection box without power outage to search for optical fiber faults, improves the safety of field operation, reduces the power outage of a power distribution network, promotes the power supply operation rate of the power distribution network, reduces the operation and detection cost of the power distribution network, and promotes the economic benefits of power distribution network enterprises.
The installation method of the 10kV insulated phase line optical cable comprises the following steps:
(1) after the 10kV insulated phase line optical cable is cut, fastening the end part of the aluminum stranded wire by using a fastening sleeve, and reserving the length of a stainless steel protective tube in the optical cable for 3 cm;
(2) coating water-blocking paste on a section of the fastening sleeve, which is 3 cm away from the outer insulating side of the OPOC optical cable, to 4 cm away from stainless steel in the optical cable, coating silicone grease on the reserved optical fiber, sleeving the optical fiber by using an inner protective sleeve, coating the head end of the inner protective sleeve outside the stainless steel protective sleeve in the optical cable, and sleeving the head end of the inner protective sleeve outside the inner protective sleeve of the optical fiber by winding protective sleeve;
(3) the water-blocking paste is coated outside the protective tube of the winding completely and then sleeved in the outer sheath of the optical fiber;
(4) coating water-blocking paste at two ends of the fastening sleeve again, sleeving the fastening sleeve into the waterproof sleeve for thermal shrinkage packaging, and performing thermal shrinkage packaging on the waterproof sleeve for the second time after the 1 st waterproof sleeve is subjected to thermal shrinkage packaging;
(5) and (4) carrying out installation and splicing on the optical fiber splicing cable manufactured by the method.
Drawings
Fig. 1 shows a schematic view of a 10kV insulated phase line cable insulation cutback according to the present invention.
Fig. 2 shows a schematic diagram of a 10kV insulated phase cable installation splice according to the present invention.
Detailed Description
As shown in fig. 1 and 2, in the installation device for a 10kV insulated phase line optical cable, an optical fiber splice closure 11 is arranged on a line steel pipe rod 12, the inside of the 10kV insulated phase line optical cable 1 comprises an optical fiber 13 and an aluminum stranded wire, and the installation device comprises an inner protective sleeve 6, an outer protective sleeve 3, a stainless steel protective sleeve 14, a fastening sleeve 5, a winding protective sleeve 4 and a waterproof sleeve 2;
after the 10kV insulated phase line optical cable 1 is cut, the end part of an aluminum stranded wire is fastened by a fastening sleeve 5, and a stainless steel protective tube 14 in the optical cable is kept for a certain length; coating water-blocking paste on the section of the fastening sleeve 5 close to the outer insulation side of the OPOC optical cable to the stainless steel protective tube 14 in the optical cable, coating silicone grease on the reserved optical fiber, sleeving the optical fiber 13 by using the inner protective sleeve 6, and sleeving the inner protective sleeve 6 of the optical fiber by winding sheath 4; the water-blocking paste is completely coated outside the protective tube 4 of the winding and then sleeved in the outer protective tube 3; and the two ends of the fastening sleeve 5 are fully coated with the water-blocking paste, and then the waterproof sleeve 2 is sleeved for thermal shrinkage packaging.
The invention adopts the method of multilayer pipe sleeve protection to continue the optical fiber connecting cable, replaces the insulation separation method of a photoelectric separation connecting box, and the cut optical fiber connecting cable can be used in a 10kV distribution line for a long time without electric breakdown to blow the optical fiber due to the design of the multilayer pipe sleeve protection, thereby ensuring the uncharged state of the optical cable connecting box body and the personal safety of maintenance operators. The multilayer pipe sleeve method has an insulation function of resisting 10kV distribution line voltage, can protect the optical fiber from being damaged, facilitates optical fiber connection, reduces connection cost, eliminates the electrification of a connection box body, solves the problem of maintaining an optical cable connection box without power outage to search for optical fiber faults, improves the safety of field operation, reduces the power outage of a power distribution network, promotes the power supply operation rate of the power distribution network, reduces the operation and detection cost of the power distribution network, and promotes the economic benefits of power distribution network enterprises.
Preferably, after the 1 st waterproof jacket 2 is heat-shrinkable and packaged, the 2 nd waterproof jacket 2 is heat-shrinkable and packaged. It is important that the 2-time encapsulation enhances the protection at this location.
Preferably, the length of the reserved optical fiber is 120 cm before the optical fiber is cut and separated, and the length of the stainless steel protective tube 14 in the optical cable is kept to be 3 cm. In addition, the stainless steel protective tube in the optical cable should be cut to prevent accidental damage to the optical fiber.
Preferably, the head end of the inner protective sleeve 6 is coated outside the stainless steel protective tube 14 in the optical cable.
Preferably, as shown in fig. 2, 2 insulating skirts 16 are provided on the lower side of the waterproof case 2. The electric insulation of the live-line part of the aluminum stranded wire at the end part of the OPOC optical cable to the inlet and outlet ends of the optical fiber splice closure 11 is met, and the optical fiber splice closure can endure 20kV voltage for a long time.
Preferably, as shown in fig. 2, the 10kV insulated phase line optical cable 1 is divided into a diversion line 7 by a clamp 8, and the diversion line is controlled by a pole switch 9 on a line steel pipe pole 12.
Preferably, as shown in fig. 2, an insulator 10 is arranged between the steel line pipe 12 and the 10kV insulated phase line optical cable 1.
The installation method of the 10kV insulated phase line optical cable comprises the following steps:
(1) after the 10kV insulated phase line optical cable is cut, fastening the end part of the aluminum stranded wire by using a fastening sleeve, and reserving the length of a stainless steel protective tube in the optical cable for 3 cm;
(2) coating water-blocking paste on a section of the fastening sleeve, which is 3 cm away from the outer insulating side of the OPOC optical cable, to 4 cm away from stainless steel in the optical cable, coating silicone grease on the reserved optical fiber, sleeving the optical fiber by using an inner protective sleeve, coating the head end of the inner protective sleeve outside the stainless steel protective sleeve in the optical cable, and sleeving the head end of the inner protective sleeve outside the inner protective sleeve of the optical fiber by winding protective sleeve;
(3) the water-blocking paste is coated outside the protective tube of the winding completely and then sleeved in the outer sheath of the optical fiber;
(4) coating water-blocking paste at two ends of the fastening sleeve again, sleeving the fastening sleeve into the waterproof sleeve for thermal shrinkage packaging, and performing thermal shrinkage packaging on the waterproof sleeve for the second time after the 1 st waterproof sleeve is subjected to thermal shrinkage packaging;
(5) and (4) carrying out installation and splicing on the optical fiber splicing cable manufactured by the method.
The key technology of the invention is as follows:
the method is used for OPOC optical cable lines with the voltage of 10kV and below of a power distribution network, the reserved length of the optical fiber connecting cable of the reserved optical fiber connecting cable 15 is determined according to the actual situation of a construction site, the length is generally not less than 50 cm, 2 insulating skirts are designed on the lower side of the waterproof sleeve 2, the electric insulation of the charged part of the aluminum stranded wire at the end part of the OPOC optical cable on the inlet end and the outlet end of the optical fiber connecting box 11 is met, and the OPOC optical cable line can bear the voltage of 20kV for a long time. The general electric insulation creepage distance is designed to withstand 1kV voltage at intervals of 2 cm. The manufacturing method of the optical fiber splicing cable can technically support the optical fiber splicing box to be uncharged, can be convenient for distribution communication personnel not to report power failure of a distribution line to overhaul an optical fiber channel, and ensures personal safety of distribution communication operating personnel not to be shocked.
The invention can be suitable for various optical fiber switching modes of the OPOC optical cable line of the 10kV power distribution network.
And thirdly, the optical fiber splicing cable 15 adopts a multi-layer protective sleeve protection optical fiber technology, wherein the bending flexibility of the optical fiber splicing cable 15 is ensured by winding an protective sleeve structure, the technical condition of the bending radius of the optical fiber is ensured, and the problem of bending and fiber breakage is prevented.
The invention has the following beneficial effects:
(1) the OPOC optical cable line connection installation method is innovatively designed, replaces a photoelectric separation connection box, eliminates the electrification of the connection box body, solves the problem that the optical cable connection box is maintained without power outage to search for optical fiber faults, and improves the safety of field operation.
(2) The method for cutting and continuing the optical fiber installation and splicing of the OPOC optical cable is innovatively improved. The method of protecting and continuing the optical fiber splicing cable by adopting the multilayer pipe sleeve replaces the insulation separation method of a photoelectric separation splicing box. The cut optical fiber connecting cable can be used in a 10kV distribution line for a long time without generating the optical fiber in a connecting box by discharging breakdown due to the design of a plurality of layers of pipe sleeve protection. The pre-length of the processed optical fiber connecting cable after being cut is larger than 50 cm, the technical requirement of 10kV creepage distance can be met at the position of 30 cm of the processed optical fiber connecting cable after being cut by the electrified end head part of the OPOC optical cable, the optical cable connecting box body can be ensured to be uncharged, and the personal safety of maintenance operators can be ensured. The multilayer pipe sleeve method has the insulation function of resisting the voltage of a 10kV distribution line, can protect the optical fiber from being damaged, is convenient for optical fiber connection and reduces the connection cost.
(3) The optical cable splicing cable at the processed part of the cut continuous optical fiber has the function of photoelectric separation, so that the volume and the weight of the optical fiber splicing box can be reduced, the stress load of a distribution tower in windy weather can be reduced, the reliability of the safe operation of the tower can be improved (the original photoelectric separation T-shaped splicing box has a large volume), and the production cost of the splicing box is reduced.
(4) The distribution optical fiber splicing box is maintained without power outage, and the personal safety of maintainers is guaranteed.
(5) The operation and maintenance cost of the distribution optical fiber communication is reduced.
(6) The power distribution optical fiber communication maintenance operation efficiency is improved.
(7) The operation rate of the distribution optical fiber communication network is improved.
(8) And the power supply operation rate of the power distribution network is promoted.
(9) The application of the intelligent technology of the power distribution network is promoted.
(10) The application of the new energy technology of the power distribution network is promoted.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent variations and modifications made to the above embodiment according to the technical spirit of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (8)
1. The utility model provides a 10kV insulated phase line optical cable installation device, optical fiber splice box (11) are on circuit steel pipe pole (12), and the inside of 10kV insulated phase line optical cable (1) includes optic fibre (13), aluminum stranded conductor, its characterized in that: the mounting device comprises an inner protective sleeve (6), an outer protective sleeve (3), a stainless steel protective sleeve (14), a fastening sleeve (5), a winding protective sleeve (4) and a waterproof sleeve (2); after the 10kV insulated phase line optical cable (1) is cut, the end part of an aluminum stranded wire is fastened by a fastening sleeve (5), and a stainless steel protective tube (14) in the optical cable is kept for a certain length; coating water-blocking paste on the section of the fastening sleeve (5) close to the outer insulation side of the OPOC optical cable to the stainless steel protective tube (14) in the optical cable, then coating silicone grease on the reserved optical fiber, sleeving the optical fiber (13) by using the inner protective sleeve (6), and sleeving the outer side of the inner protective sleeve (6) of the optical fiber by winding protective sleeve (4); the waterproof paste is coated outside the protective tube (4) of the winding completely and then sleeved in the outer protective tube (3); the two ends of the fastening sleeve (5) are fully coated with the water-blocking paste, and then the waterproof sleeve (2) is sleeved for thermal shrinkage packaging.
2. The 10kV insulated phase cable mounting apparatus of claim 1, wherein: after the 1 st waterproof sleeve (2) is subjected to thermal shrinkage packaging, the 2 nd waterproof sleeve (2) is subjected to thermal shrinkage packaging.
3. The 10kV insulated phase cable mounting apparatus of claim 2, wherein: the length of the reserved optical fiber is 120 cm before the optical fiber is cut and separated, and the length of a stainless steel protective tube (14) in the optical cable is 3 cm.
4. The 10kV insulated phase cable mounting apparatus of claim 3, wherein: the end part of the inner protective sleeve (6) is coated outside the stainless steel protective tube (14) in the optical cable.
5. The 10kV insulated phase cable mounting device of claim 4, wherein: 2 insulating skirts (16) are arranged on the lower side of the waterproof sleeve (2).
6. The 10kV insulated phase cable mounting device of claim 5, wherein: the 10kV insulated phase line optical cable (1) is divided into guide lines (7) through wire clamps (8), and the guide lines are controlled through column switches (9) on line steel pipe rods (12).
7. The 10kV insulated phase cable mounting apparatus of claim 6, wherein: an insulator (10) is arranged between the line steel pipe rod (12) and the 10kV insulated phase line optical cable (1).
8. A10 kV insulation phase line optical cable installation method is characterized in that: which comprises the following steps:
(1) after the 10kV insulated phase line optical cable is cut, fastening the end part of the aluminum stranded wire by using a fastening sleeve, and reserving the length of a stainless steel protective tube in the optical cable for 3 cm;
(2) coating water-blocking paste on a section of the fastening sleeve, which is 3 cm away from the outer insulating side of the OPOC optical cable, to 4 cm away from stainless steel in the optical cable, coating silicone grease on the reserved optical fiber, sleeving the optical fiber by using an inner protective sleeve, coating the head end of the inner protective sleeve outside the stainless steel protective sleeve in the optical cable, and sleeving the head end of the inner protective sleeve outside the inner protective sleeve of the optical fiber by winding protective sleeve;
(3) the water-blocking paste is coated outside the protective tube of the winding completely and then sleeved in the outer sheath of the optical fiber;
(4) coating water-blocking paste at two ends of the fastening sleeve again, sleeving the fastening sleeve into the waterproof sleeve for thermal shrinkage packaging, and performing thermal shrinkage packaging on the waterproof sleeve for the second time after the 1 st waterproof sleeve is subjected to thermal shrinkage packaging;
(5) and (4) carrying out installation and splicing on the optical fiber splicing cable manufactured by the method.
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| CN202011409472.4A CN112433317B (en) | 2020-12-04 | 2020-12-04 | 10KV insulated phase line optical cable installation device and method |
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| CN202011409472.4A CN112433317B (en) | 2020-12-04 | 2020-12-04 | 10KV insulated phase line optical cable installation device and method |
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| CN112433317B CN112433317B (en) | 2024-07-02 |
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