CN212322661U - Water-blocking overhead insulated cable - Google Patents
Water-blocking overhead insulated cable Download PDFInfo
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- CN212322661U CN212322661U CN202021229815.4U CN202021229815U CN212322661U CN 212322661 U CN212322661 U CN 212322661U CN 202021229815 U CN202021229815 U CN 202021229815U CN 212322661 U CN212322661 U CN 212322661U
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- conductor
- water
- insulated cable
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- blocking
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The utility model provides an overhead insulated cable of waterproofing type, including the conductor, the outside of conductor is from interior to outer cladding in proper order and is provided with semi-conducting layer, insulating layer, the conductor is formed by many metal single lines transposition, sets up the space between many metal single lines, pack the super absorbent filler in the space. The utility model discloses an aerial insulated cable of waterproofing type simple structure, the performance is excellent, and the space between many metal single lines of conductor is filled to the super absorbent filler, can prevent the axial flow of moisture, and inside aluminium foil semi-conductive sticky tape can prevent the rainwater along the vertical infiltration conductor of insulating gap around the package is pasted on the conductor surface, the semi-conductive glue still played the homogenization electric field effect.
Description
Technical Field
The utility model relates to a wire and cable technical field especially relates to a waterproofing type aerial insulated cable.
Background
The overhead insulated cable is used as a power transmission line, is widely applied to power distribution networks in cities, suburbs and rural areas, and effectively solves the problems of corridors and safety which are difficult to solve by bare conductors. However, new technical problems are brought, for example, insulation cracking and rainwater can infiltrate into the conductor along with gaps and intensively infiltrate into a sagging low-lying part of the cable, so that the mechanical load of the line is increased, the line aging is accelerated, the service life of the cable is shortened, and lightning flashover and lightning breakage accidents are easy to occur in thunderstorm weather.
Disclosure of Invention
To exist not enough among the prior art, the utility model provides a waterproofing type aerial insulated cable, this cable conductor structure gap adopt the thing that blocks water to fill, and the conductor surface adopts aluminium foil semi-conductive sticky tape around the package, and this cable water blocking performance is good. The utility model adopts the technical proposal that:
a water-blocking type overhead insulated cable, wherein: the conductor is formed by stranding a plurality of metal single wires, a gap is formed between the plurality of metal single wires, and a high-water-absorptivity filler is filled in the gap.
Preferably, the water-blocking type overhead insulated cable, wherein: the metal single wire is made of one or more of aluminum, aluminum alloy, copper and copper alloy, and the conductor is cylindrical.
Preferably, the water-blocking type overhead insulated cable, wherein: the shape of the metal single wire is selected from one or more of a circle, a trapezoid, an S shape and a Z shape.
Preferably, the water-blocking type overhead insulated cable, wherein: the high water absorption filler is one or more of water-blocking paste, water-blocking yarn and water-blocking tape.
Preferably, the water-blocking type overhead insulated cable, wherein: the semi-conductive layer is an aluminum foil semi-conductive adhesive tape which is wrapped and adhered to the outer side of the conductor.
Preferably, the water-blocking type overhead insulated cable, wherein: the aluminum foil semi-conductive adhesive tape is longitudinally and spirally wrapped and adhered to the outer side of the conductor, and the wrapping lap joint rate between the aluminum foil semi-conductive adhesive tapes is 15-30%.
The utility model has the advantages that: the utility model discloses an aerial insulated cable of waterproofing type simple structure, the performance is excellent, and the space between many metal single lines of conductor is filled to the super absorbent filler, can prevent the axial flow of moisture, and inside aluminium foil semi-conductive sticky tape can prevent the rainwater along the vertical infiltration conductor of insulating gap around the package is pasted on the conductor surface, the semi-conductive glue still played the homogenization electric field effect.
Drawings
Fig. 1 is a sectional view of the present invention.
Fig. 2 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.
Fig. 4 is a schematic structural diagram of embodiment 3 of the present invention.
Detailed Description
The invention is further described with reference to the following specific drawings and examples.
Example 1:
a water-blocking type overhead insulated cable comprises a conductor 1, wherein a semi-conducting layer 3 and an insulating layer 4 are sequentially coated and arranged on the outer side of the conductor from inside to outside, the conductor 1 is formed by twisting a plurality of metal single wires 11, gaps 12 are formed among the plurality of metal single wires 11, high-water-absorption fillers 2 are filled in the gaps 12, the metal single wires 11 are made of one or more of aluminum, aluminum alloy, copper and copper alloy, the conductor 1 is cylindrical, the metal single wires 11 are circular, the high-water-absorption fillers 2 are one or more of water-blocking paste, water-blocking yarn and water-blocking tape, the semi-conducting layer 3 is an aluminum foil semi-conducting tape which is wrapped and adhered to the outer side of the conductor 1, the aluminum foil semi-conducting tape is longitudinally spirally adhered to the outer side of the conductor 1, and the lap joint rate between the aluminum foil semi-conducting tapes is 15-30%.
Example 2:
a water-blocking type overhead insulated cable comprises a conductor 1, wherein a semi-conducting layer 3 and an insulating layer 4 are sequentially coated and arranged on the outer side of the conductor from inside to outside, the conductor 1 is formed by twisting a plurality of metal single wires 11, gaps 12 are formed among the plurality of metal single wires 11, high-water-absorption fillers 2 are filled in the gaps 12, the metal single wires 1 are made of one or more of aluminum, aluminum alloy, copper and copper alloy, the conductor 1 is cylindrical, the metal single wires 11 are trapezoidal, the high-water-absorption fillers 2 are one or more of water-blocking paste, water-blocking yarn and water-blocking tape, the semi-conducting layer 3 is an aluminum foil semi-conducting tape which is wrapped and adhered to the outer side of the conductor 1, the aluminum foil semi-conducting tape is longitudinally spirally adhered to the outer side of the conductor 1, and the lap joint rate between the aluminum foil semi-conducting tapes is 15-30%.
Example 3
A water-blocking type overhead insulated cable, as shown in figure 4, comprises a conductor 1, a semi-conducting layer 3 and an insulating layer 4 are sequentially coated on the outer side of the conductor from inside to outside, the conductor 1 is formed by twisting a plurality of metal single wires 11, gaps 12 are arranged among the plurality of metal single wires 11, the gap 12 is filled with high water absorption filler 2, the metal single wire 1 is made of one or more of aluminum, aluminum alloy, copper and copper alloy, the conductor 1 is cylindrical, the metal single wires 11 are S-shaped and Z-shaped, the S-shaped metal single wires and the Z-shaped metal single wires 11 are formed by twisting, the high-water-absorptivity filler 2 is one or more of water-blocking paste, water-blocking yarn and water-blocking tape, the semi-conductive layer 3 is an aluminum foil semi-conductive adhesive tape which is wrapped and adhered to the outer side of the conductor 1, the aluminum foil semi-conductive adhesive tape is longitudinally and spirally wrapped and adhered to the outer side of the conductor 1, and the wrapping lap joint rate between the aluminum foil semi-conductive adhesive tapes is 15-30%.
The utility model discloses an aerial insulated cable of waterproofing type simple structure, the performance is excellent, and the space 12 between 1 many metal single lines 11 of conductor is filled to the super absorbent filler, can prevent the axial flow of moisture, and inside the aluminium foil semiconduction sticky tape can prevent the rainwater at 1 surface on the conductor along the vertical infiltration conductor in insulating gap around the package, the semiconduction was glued and is still played the homogenization electric field effect.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a waterproofing type aerial insulated cable which characterized in that: the cable comprises a conductor (1), wherein a semi-conducting layer (3) and an insulating layer (4) are sequentially coated from inside to outside on the outer side of the conductor, the conductor (1) is formed by twisting a plurality of metal single wires (11), a gap (12) is formed between the plurality of metal single wires (11), and a high-water-absorptivity filler (2) is filled in the gap (12).
2. The water-blocking type overhead insulated cable according to claim 1, characterized in that: the metal single wire (11) is made of one or more of aluminum, aluminum alloy, copper and copper alloy, and the conductor (1) is cylindrical.
3. The water-blocking type overhead insulated cable according to claim 2, characterized in that: the shape of the metal single wire (11) is selected from one or more of a circle, a trapezoid, an S shape and a Z shape.
4. The water-blocking type overhead insulated cable according to claim 1, characterized in that: the high water absorption filler (2) is one or more of water-blocking paste, water-blocking yarn and water-blocking tape.
5. The water-blocking type overhead insulated cable according to claim 1, characterized in that: the semi-conductive layer (3) is an aluminum foil semi-conductive adhesive tape which is wrapped and adhered to the outer side of the conductor (1).
6. The water-blocking type overhead insulated cable according to claim 5, characterized in that: the aluminum foil semi-conductive adhesive tape is longitudinally spirally wrapped and adhered to the outer side of the conductor (1), and the wrapping lap joint rate between the aluminum foil semi-conductive adhesive tapes is 15-30%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021229815.4U CN212322661U (en) | 2020-06-29 | 2020-06-29 | Water-blocking overhead insulated cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021229815.4U CN212322661U (en) | 2020-06-29 | 2020-06-29 | Water-blocking overhead insulated cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212322661U true CN212322661U (en) | 2021-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021229815.4U Active CN212322661U (en) | 2020-06-29 | 2020-06-29 | Water-blocking overhead insulated cable |
Country Status (1)
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| CN (1) | CN212322661U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116543968A (en) * | 2023-07-07 | 2023-08-04 | 特变电工(德阳)电缆股份有限公司 | Compact medium-voltage cable |
-
2020
- 2020-06-29 CN CN202021229815.4U patent/CN212322661U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116543968A (en) * | 2023-07-07 | 2023-08-04 | 特变电工(德阳)电缆股份有限公司 | Compact medium-voltage cable |
| CN116543968B (en) * | 2023-07-07 | 2023-09-29 | 特变电工(德阳)电缆股份有限公司 | Compact medium-voltage cable |
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