CN211208076U - Cross-linked polyethylene insulated single-mode fiber composite low-voltage power cable - Google Patents
Cross-linked polyethylene insulated single-mode fiber composite low-voltage power cable Download PDFInfo
- Publication number
- CN211208076U CN211208076U CN201922422344.2U CN201922422344U CN211208076U CN 211208076 U CN211208076 U CN 211208076U CN 201922422344 U CN201922422344 U CN 201922422344U CN 211208076 U CN211208076 U CN 211208076U
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- Prior art keywords
- outside
- filling
- power cable
- insulating
- rope
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- 239000000835 fiber Substances 0.000 title claims abstract description 21
- 229920003020 cross-linked polyethylene Polymers 0.000 title claims abstract description 13
- 239000004703 cross-linked polyethylene Substances 0.000 title claims abstract description 13
- 239000002131 composite material Substances 0.000 title claims description 8
- 230000003287 optical effect Effects 0.000 claims abstract description 27
- 150000001875 compounds Chemical class 0.000 claims abstract description 6
- 239000004020 conductor Substances 0.000 claims abstract description 6
- 239000010410 layer Substances 0.000 claims description 18
- 239000013307 optical fiber Substances 0.000 claims description 15
- 239000011247 coating layer Substances 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims 3
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 10
- 238000000576 coating method Methods 0.000 abstract description 10
- 238000012856 packing Methods 0.000 abstract description 2
- 230000002787 reinforcement Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000017105 transposition Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005034 decoration Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
The utility model relates to a compound low pressure power cable of insulating single mode fiber of crosslinked polyethylene, it includes the conductor outside is equipped with the insulating layer, and they constitute insulating core, insulating core sets up two insulating core one side is equipped with the filling rope, and the opposite side is equipped with full dry-type optical unit insulating core, filling rope and full dry-type optical unit outside are equipped with the packing fill the filling outside is equipped with around the covering be equipped with the restrictive coating around the covering outside be equipped with the tear rope in the restrictive coating of covering and restrictive coating junction, full dry-type optical unit is including being located the optical cable at center, and the optical cable both sides respectively have a reinforcement, the optical cable includes optic fibre the outside coating of optic fibre the coating outside is equipped with the loose tube. The utility model discloses be fit for laying perpendicularly, whole mechanical properties is good.
Description
Technical Field
The utility model relates to a cable, concretely relates to optical fiber composite cable.
Background
At present, in a cross-linked polyethylene insulated power cable with an optical unit, the optical unit comprises an optical unit sheath, a water blocking tape, a loose tube, a dry water blocking object and an optical fiber from outside to inside, the loose tube is filled with factice, and the factice has the characteristics of viscosity and difficult flowing, so that the function of supporting the inner diameter of the tube is played in the loose tube, the round and neat appearance of the loose tube is ensured, and the cross-linked polyethylene insulated power cable is suitable for horizontal laying.
Disclosure of Invention
The purpose of the invention is as follows: the utility model aims at overcoming the not enough among the prior art, provide one kind and be fit for laying perpendicularly, the compound low pressure power cable of insulating single mode fiber of crosslinked polyethylene that whole mechanical properties is good.
The technical scheme is as follows: in order to solve the technical problem, a compound low pressure power cable of insulating single mode fiber of crosslinked polyethylene, it includes the conductor outside is equipped with the insulating layer, and they constitute insulating core, insulating core sets up two insulating core one side is equipped with the filling rope, and the opposite side is equipped with full dry-type optical unit insulating core, filling rope and full dry-type optical unit outside are equipped with the packing the filling outside is equipped with around the covering be equipped with the restrictive coating around the covering outside be equipped with the tear rope in the restrictive coating of covering and restrictive coating junction, full dry-type optical unit is including being located the optical cable at center, and the optical cable both sides respectively have a reinforcement, the optical cable includes optic fibre the optic fibre outside coat the coat outside is equipped with the loose tube.
Two insulated wire cores and a filling rope are externally tangent to each other.
The inner diameter of the loose sleeve is not less than 1.2mm, and the wall thickness is not less than 0.15 mm.
The sheath layer and the tearing rope are formed by co-extrusion.
The filling is a non-hygroscopic filling.
A process method of supplementing constant-voltage shaking dry nitrogen is adopted to trial-produce the full-dry optical unit. A stable dry nitrogen gas pressure is injected into the loose sleeve to provide a certain supporting effect for the sleeve, the outer diameter size and the roundness of the sleeve are ensured, and the optical fiber generates certain vibration under the nitrogen gas pressure, so that the optical fiber is prevented from being bonded with the inner wall of the sleeve due to long-time contact with a certain point.
The optical fiber has no obvious additional attenuation and strain under the long-term allowable tensile load of 20MPa × S copper sectional area, the additional attenuation of the optical fiber is not more than 0.2dB and the strain of the optical fiber is not more than 0.3 percent under the transient tension of 70MPa × S copper sectional area, after the tension is removed, the optical fiber has no obvious residual additional attenuation and strain, and the sheath has no visible crack under the condition of visual force.
Has the advantages that: compared with the prior art, the utility model, it is showing the advantage and is: the utility model discloses the structure sets up rationally, add the structure of light unit in the outside limit clearance of stranding, help the compound low tension cable of optic fibre to increase the surplus length of transposition of optic fibre at the stranding transposition in-process, optic fibre sets up the coating outward, be for protecting bare fiber, improve the mechanical strength of optic fibre and anti little bending strength and reduce the decay, adopt full dry-type light unit structure, be suitable for the perpendicular occasion of laying, tear rope and oversheath and extrude in step, it is more convenient when laying the use, this product mechanical properties is good, accord with the in-service use requirement.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural diagram of the middle optical cable of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in fig. 1 and fig. 2, the composite low voltage power cable of the crosslinked polyethylene insulated single mode fiber of the present invention comprises a conductor 1, an insulating layer 2 is provided outside the conductor 1, which forms an insulated wire core, two insulated wire cores are provided, a filling rope 3 is provided on one side of the insulated wire core, two insulated wire cores and a filling rope 3 are externally connected, an all-dry type optical unit 4 is provided on the other side of the insulated wire core, a filling 5 is provided outside the insulated wire core, the filling rope 3 and the all-dry type optical unit 4, which is a non-hygroscopic filling, a wrapping layer 6 is provided outside the filling 5, a sheathing layer 7 is provided outside the wrapping layer 6, a tearing rope 8 is provided inside the sheathing layer 7 at the junction of the wrapping layer 6 and the sheathing layer 7, the sheathing layer 7 and the tearing rope 8 are co-extruded, the all-dry type optical unit 4 comprises an optical cable 9 at the center, the optical cable 9 comprises optical fibers 11, a coating layer 12 is arranged outside the optical fibers 11, a loose tube 13 is arranged outside the coating layer 12, the inner diameter of the loose tube 13 is not less than 1.2mm, and the wall thickness is not less than 0.15 mm. The utility model discloses the structure sets up rationally, add the structure of light unit in the outside limit clearance of stranding, help the compound low tension cable of optic fibre to increase the surplus length of transposition of optic fibre at the stranding transposition in-process, optic fibre sets up the coating outward, be for protecting bare fiber, improve the mechanical strength of optic fibre and anti little bending strength and reduce the decay, adopt full dry-type light unit structure, be suitable for the perpendicular occasion of laying, tear rope and oversheath and extrude in step, it is more convenient when laying the use, this product mechanical properties is good, accord with the in-service use requirement.
The utility model provides a thinking and method, the method and the way of specifically realizing this technical scheme are many, above only the utility model discloses a preferred embodiment should point out, to the ordinary technical personnel in this technical field, not deviating from the utility model discloses under the prerequisite of principle, can also make a plurality of improvements and moist decorations, these improvements should also be regarded as the utility model discloses a protection range, each component that does not make clear and definite in this embodiment all can be realized with prior art.
Claims (5)
1. The utility model provides a compound low pressure power cable of insulating single mode fiber of crosslinked polyethylene which characterized in that: the cable comprises a conductor (1), wherein an insulating layer (2) is arranged outside the conductor (1) and forms an insulating wire core, the insulating wire core is provided with two filling ropes (3) on one side of the insulating wire core, a full-dry type optical unit (4) is arranged on the other side of the insulating wire core, the outside of the insulating wire core, the filling ropes (3) and the full-dry type optical unit (4) is provided with a filling rope (5), the outside of the filling rope (5) is provided with a winding layer (6), a sheath layer (7) is arranged outside the winding layer (6), a tearing rope (8) is arranged in the sheath layer (7) at the joint of the winding layer (6) and the sheath layer (7), the full-optical unit (4) comprises an optical cable (9) positioned at the center, two reinforcing parts (10) are respectively arranged on two sides of the optical cable, the optical cable (9) comprises an optical fiber (11), and a, a loose tube (13) is arranged outside the coating layer (12).
2. The crosslinked polyethylene insulated single-mode optical fiber composite low-voltage power cable according to claim 1, characterized in that: two insulated wire cores and a filling rope (3) are externally tangent to each other.
3. The crosslinked polyethylene insulated single-mode optical fiber composite low-voltage power cable according to claim 1, characterized in that: the inner diameter of the loose tube (13) is not less than 1.2mm, and the wall thickness is not less than 0.15 mm.
4. The crosslinked polyethylene insulated single-mode optical fiber composite low-voltage power cable according to claim 1, characterized in that: the sheath layer (7) and the tearing rope (8) are formed by co-extrusion.
5. The crosslinked polyethylene insulated single-mode optical fiber composite low-voltage power cable according to claim 1, characterized in that: the filling (5) is a non-hygroscopic filling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922422344.2U CN211208076U (en) | 2019-12-30 | 2019-12-30 | Cross-linked polyethylene insulated single-mode fiber composite low-voltage power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922422344.2U CN211208076U (en) | 2019-12-30 | 2019-12-30 | Cross-linked polyethylene insulated single-mode fiber composite low-voltage power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211208076U true CN211208076U (en) | 2020-08-07 |
Family
ID=71852076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922422344.2U Active CN211208076U (en) | 2019-12-30 | 2019-12-30 | Cross-linked polyethylene insulated single-mode fiber composite low-voltage power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211208076U (en) |
-
2019
- 2019-12-30 CN CN201922422344.2U patent/CN211208076U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214205 huankeyuan chaquan Road, Yixing City, Wuxi City, Jiangsu Province Patentee after: Jiangsu Bao'an Cable Co.,Ltd. Address before: 214205 huankeyuan chaquan Road, Yixing City, Wuxi City, Jiangsu Province Patentee before: JIANGSU BAOAN CABLE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A cross-linked polyethylene insulated single-mode optical fiber composite low-voltage power cable Granted publication date: 20200807 Pledgee: Wuxi rural commercial bank Limited by Share Ltd. Yixing branch Pledgor: Jiangsu Bao'an Cable Co.,Ltd. Registration number: Y2024980010211 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |