CN208335841U - A kind of single stranded bundle blocks water aerial cable - Google Patents
A kind of single stranded bundle blocks water aerial cable Download PDFInfo
- Publication number
- CN208335841U CN208335841U CN201821187386.1U CN201821187386U CN208335841U CN 208335841 U CN208335841 U CN 208335841U CN 201821187386 U CN201821187386 U CN 201821187386U CN 208335841 U CN208335841 U CN 208335841U
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- Prior art keywords
- cable
- core
- layer
- blocks water
- twisted
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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
It blocks water aerial cable the utility model relates to a kind of single stranded bundle, including at least 3 strands mutually twisted single-core cables, and the binding strap that each stock single-core cable is intertwined, the per share single-core cable include conductor, internal shield, insulating layer, external shielding layer, metal screen layer and the oversheath that from-inner-to-outer is set gradually.Each stock single-core cable is twisted and forms overall structure by the utility model, ensure that cable strength, and the setting of external shielding layer and metal screen layer plays protective action to insulating layer, avoids the damage caused by insulating body in laying.
Description
Technical field
The utility model relates to bunched cable field more particularly to a kind of single stranded bundle resistances for overhead system
Hydroelectric power cable.
Background technique
Bunched cable is applied to the electrical equipments such as aerial laying, cable trench, pipeline, connecting switch cabinet and transformer.It passes
The power cable structure of system is stranding after three core insulations, forms a cable body, sheath protection is carried out, in order to meet the effect that blocks water
Fruit needs largely to fill material water-proof material in the gap of three cable cores, and in actually laying, removal sheath protection is then easy
Damage to insulation ontology loses due insulation performance.And existing aerial insulated cable is also without corresponding sheath and the knot that blocks water
Structure is unable to satisfy the needs of complex environment.
Summary of the invention
It blocks water aerial cable, avoids in view of the shortcomings of the prior art, the utility model provides a kind of single stranded bundle
The Damage to insulation body in laying.
The utility model is achieved by the following technical solution, and is provided a kind of single stranded bundle and is blocked water aerial cable,
Including at least 3 strands mutually twisted single-core cables, and the binding strap that each stock single-core cable is intertwined, the per share list
Core cable includes conductor, internal shield, insulating layer, external shielding layer, metal screen layer and the oversheath that from-inner-to-outer is set gradually.
This programme forms overall structure for each stock single-core cable is twisted, ensure that cable strength, by setting internal shield,
External shielding layer and metal screen layer improve the interference free performance of cable, will not be to insulation even if removing oversheath when laying
Ontology causes to damage, and ensure that due insulation performance, while being arranged by each layer, plays block-water effect, meets complicated ring
The use in border.
As optimization, the quantity of the single-core cable is 3 strands, and 3 bursts of single-core cable dextrad are twisted, and twisted lay ratio is
22-26.This prioritization scheme is twisted using dextrad, meets staff's habit, is twisted the numerical value setting of lay ratio, makes stranded
Intensity is higher, while avoiding single-core cable excessive distortion.
As optimization, the metal screen layer is copper strips.Using copper strips as metal screen layer, shield effectiveness is more preferable.
Overall structure is formed the utility model has the following beneficial effects: each stock single-core cable is twisted, ensure that cable strength,
The setting of external shielding layer and metal screen layer plays protective action to insulating layer, avoids and causes in laying to insulating body
Damage.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
It is as shown in the figure:
1, conductor, 2, internal shield, 3, insulating layer, 4, external shielding layer, 5, metal screen layer, 6, oversheath, 7, binding strap.
Specific embodiment
In order to clarify the technical characteristics of the invention, being illustrated below by specific embodiment to this programme.
A kind of single stranded bundle blocks water aerial cable as shown in Figure 1, including 3 strands of mutually twisted single-core cables, and
7,3 bursts of single-core cable dextrad of binding strap that each stock single-core cable is intertwined are twisted, and being twisted lay ratio is 22.It is per share described
Single-core cable includes conductor 1, internal shield 2, insulating layer 3, external shielding layer 4,5 and of metal screen layer that from-inner-to-outer is set gradually
Oversheath 6, wherein metal screen layer is copper strips.
Each stock single-core cable is twisted and forms overall structure by the cable of the present embodiment, ensure that cable strength, passes through setting
Internal shield, external shielding layer and metal screen layer improve the interference free performance of cable, even if removing oversheath when laying,
Insulating body will not be caused to damage, due insulation performance is ensure that, while being arranged by each layer, play block-water effect,
Meet the use of complex environment.
Certainly, above description is also not limited to the example above, and technical characteristic of the utility model without description can lead to
It crosses or realizes that details are not described herein using the prior art；Above embodiments and attached drawing are merely to illustrate the technology of the utility model
Scheme is not limitations of the present invention, and the utility model is described in detail referring to preferred embodiment, this
Field it is to be appreciated by one skilled in the art that those skilled in the art institute in the essential scope of the utility model
The variations, modifications, additions or substitutions made without departure from the objective of the utility model, want by the right that also should belong to the utility model
Seek protection scope.
Claims (3)
- The aerial cable 1. a kind of single stranded bundle blocks water, it is characterised in that: the single-core cables being mutually twisted including at least 3 strands, And the binding strap (7) that each stock single-core cable is intertwined, the per share single-core cable include that from-inner-to-outer is set gradually Conductor (1), internal shield (2), insulating layer (3), external shielding layer (4), metal screen layer (5) and oversheath (6).
- The aerial cable 2. a kind of single stranded bundle according to claim 1 blocks water, it is characterised in that: the single-core cable Quantity be 3 strands, and 3 bursts of single-core cable dextrad are twisted, and being twisted lay ratio is 22-26.
- The aerial cable 3. a kind of single stranded bundle according to claim 1 blocks water, it is characterised in that: the metallic shield Layer is copper strips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821187386.1U CN208335841U (en) | 2018-07-26 | 2018-07-26 | A kind of single stranded bundle blocks water aerial cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821187386.1U CN208335841U (en) | 2018-07-26 | 2018-07-26 | A kind of single stranded bundle blocks water aerial cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208335841U true CN208335841U (en) | 2019-01-04 |
Family
ID=64784544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821187386.1U Active CN208335841U (en) | 2018-07-26 | 2018-07-26 | A kind of single stranded bundle blocks water aerial cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208335841U (en) |
-
2018
- 2018-07-26 CN CN201821187386.1U patent/CN208335841U/en active Active
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