CN209087425U - Crosslinked polyetylene insulated smooth aluminium sheath power cable - Google Patents
Crosslinked polyetylene insulated smooth aluminium sheath power cable Download PDFInfo
- Publication number
- CN209087425U CN209087425U CN201820943736.6U CN201820943736U CN209087425U CN 209087425 U CN209087425 U CN 209087425U CN 201820943736 U CN201820943736 U CN 201820943736U CN 209087425 U CN209087425 U CN 209087425U
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- Prior art keywords
- layer
- aluminium sheath
- smooth aluminium
- sheath
- power cable
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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 relates to a kind of crosslinked polyetylene insulated smooth aluminium sheath power cables, solve the deficiencies in the prior art, technical solution are as follows: including conductor, internal shield, insulating layer, external shielding layer, smooth aluminium sheath and thermosensitive type oversheath, the outside packet of the conductor is equipped with internal shield, the outside packet of internal shield is equipped with insulating layer, the outside packet of the insulating layer is equipped with external shielding layer, the outside packet of the external shielding layer is equipped with semi-conductive tape or semi-conductive buffer water-blocking band, the outside of the semi-conductive tape or semi-conductive buffer water-blocking band packet is equipped with smooth aluminium sheath, the outside packet of smooth aluminium sheath is equipped with thermosensitive type oversheath, the smooth aluminium sheath is the smooth aluminium sheath of longitudinal wrap welding fabrication.
Description
Technical field
The utility model relates to a kind of cables, and in particular to a kind of crosslinked polyetylene insulated smooth aluminium sheath power cable.
Background technique
66kV-500kV high voltage power cable route is the trunk transmission line of electricity of our countries, whether can stablize fortune
It goes, is whether safe and reliable, being directly related to national economy and social development, the structure of high-tension cable is mainly by conductor, insulation, gold
Belong to shielding, nonmetallic oversheath composition.Wherein metallic shield mostly uses corrugated aluminium sheath, and nonmetallic oversheath is mostly polyethylene or gathers
Vinyl chloride material.On the basis of this structure, high-tension cable is to meet the needs of route on-line monitoring, can also be using including part
Thermocouple temperature measurement, online optical fiber temperature-measurement, online Partial Discharge Detection etc., many measures carry out on-line temperature monitoring.It is based on
Further increase cable comprehensive performance and the user smooth aluminium sheath novel to the demand developmental research of cable operation on-line monitoring
Temperature sensing cable.
201711166379.3 cable of published application, publication date 2017-11-21, disclosed technology include cable core and
The insulating layer being coated on outside cable core, the shielded layer and cable core and insulating layer of insulating layer outer cladding form cable core unit, in cable core list
Member is externally provided with titanium layer and wearing layer.The cable of the utility model can significantly simplify the structure and production technology of cable,
While guaranteeing cable performance, the weight of cable is effectively reduced, the diameter of cable is reduced.This technology has still remained tradition
Ripple type aluminium set cable aluminium set be in ripple type, contact of the aluminium set with insulated wire cores be linear point contact, during test
Easily there is capacitive discharge；Ripple type aluminium set needs embossing, and outer diameter must be made very big.Due between ripple aluminium set and insulated wire cores
There are certain gap, the additional of high thermal resistivity air structure is unfavorable for cable heat dissipation and reduces current-carrying capacity of cable, while by
It is not compact enough in cable overall structure, the unsatisfactory problem of longitudinal water-blocking performance.
Utility model content
Utility model aims to solve the above-mentioned prior arts since there are one between ripple aluminium set and insulated wire cores
Fixed gap, high thermal resistivity air structure it is additional be unfavorable for cable heat dissipation reduce current-carrying capacity of cable, simultaneously because cable
Overall structure is not compact enough, the unsatisfactory problem of longitudinal water-blocking performance, provides a kind of crosslinked polyetylene insulated smooth aluminium sheath
Power cable.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of crosslinked polyetylene insulated smooth aluminium shield
Power cable, including conductor, internal shield, insulating layer, external shielding layer, smooth aluminium sheath and thermosensitive type oversheath are covered, it is described to lead
The outside packet of body is equipped with internal shield, the outside packet of internal shield is equipped with insulating layer, and the outside packet of the insulating layer is equipped with external screen
Layer is covered, the outside packet of the external shielding layer is equipped with semi-conductive tape or semi-conductive buffer water-blocking band, the semi-conductive tape or semiconductive
The outside packet of buffer water-blocking band is equipped with smooth aluminium sheath, and the outside packet of smooth aluminium sheath is equipped with thermosensitive type oversheath, described smooth
Aluminium sheath is the smooth aluminium sheath of longitudinal wrap welding fabrication.The present invention is that ripple aluminium sheath is modified to the structure of smooth aluminium sheath,
Make aluminium sheath is smooth to be coated on outside insulated wire cores semi-conductive layer, reach metallic shield and insulated wire cores in face of face contact, together
When also improve the compactedness of cable, avoid air structure thermal resistance, realize better longitudinal water-blocking performance.
Preferably, the thermosensitive type oversheath includes internal layer sheath, thermosensitive type outer protective sleeve and braiding layer, the braiding
Layer is packaged in the outside of the internal layer sheath, and the thermosensitive type outer protective sleeve is packaged in the outer layer of the braiding layer.The internal layer
The thickness of sheath is less than or equal to the thickness of the thermosensitive type outer protective sleeve, and the internal layer sheath is to be provided with several closed cavities
Sheath.
Preferably, the braiding layer is wire sheathing.
Preferably, filled with leakage instruction powder in the closed cavity, the loading of the leakage instruction powder is small
In equal to the 40% of the closed cavity volume.
The substantial effect of the utility model is: the present invention is that ripple aluminium sheath is modified to the structure of smooth aluminium sheath,
Make aluminium sheath is smooth to be coated on outside insulated wire cores semi-conductive layer, reach metallic shield and insulated wire cores in face of face contact, together
When also improve the compactedness of cable, avoid air structure thermal resistance, realize better longitudinal water-blocking performance.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
In figure: 1, conductor, 2, internal shield, 3, insulating layer, 4, external shielding layer, 5, smooth aluminium sheath, 6, protect outside thermosensitive type
Set.
Specific embodiment
Below by specific embodiment, and in conjunction with attached drawing, the technical solution of the utility model is made further specifically
It is bright.
Embodiment 1:
A kind of crosslinked polyetylene insulated smooth aluminium sheath power cable, including conductor 1, internal shield 2, insulating layer 3, external screen
Layer 4, smooth aluminium sheath 5 and thermosensitive type oversheath 6 are covered, the outside packet of the conductor is equipped with the outside of internal shield, internal shield
Packet is equipped with insulating layer, and the outside packet of the insulating layer is equipped with external shielding layer, and the outside packet of the external shielding layer is equipped with semi-conductive tape
Or semi-conductive buffer water-blocking band, the outside packet of the semi-conductive tape or semi-conductive buffer water-blocking band are equipped with smooth aluminium sheath, smoothly
The outside packet of aluminium sheath is equipped with thermosensitive type oversheath, and the smooth aluminium sheath is the smooth aluminium sheath of longitudinal wrap welding fabrication.This reality
Apply the structure that ripple aluminium sheath is modified to smooth aluminium sheath by example, make aluminium sheath it is smooth be coated on insulated wire cores semi-conductive layer
Outside, reach metallic shield and insulated wire cores in face of face contact, while also improving the compactedness of cable, avoid air structure
Thermal resistance realizes better longitudinal water-blocking performance.
Embodiment 2:
The present embodiment is substantially the same manner as Example 1, the difference is that, oversheath described in the present embodiment includes internal layer shield
Set, outer protective sleeve and braiding layer, the braiding layer are packaged in the outside of the internal layer sheath, and the outer protective sleeve is packaged in described
The outer layer of braiding layer.The thickness of the internal layer sheath is less than or equal to the thickness of the outer protective sleeve, and the internal layer sheath is setting
There is the sheath of several closed cavities.Filled with leakage instruction powder in the closed cavity, the leakage instruction powder is filled out
Charge is less than or equal to the 40% of the closed cavity volume.The braiding layer is wire sheathing.
Embodiment 3:
The present embodiment is substantially the same manner as Example 1, the difference is that, in the present embodiment, thermosensitive type oversheath makes cable
Protective cover material, which has, to be varied with temperature and converts different colors, realizes the temperature that cable surface is judged by color change, into
And may determine that whether cable operation is normal.Temperature-sensing color-changing material should adapt to the temperature change of 110kV cable cover(ing), generally
Within the scope of -20 DEG C ~ 80 DEG C.Temperature sensing material itself is a kind of multi-component compound, the temperature range of heat discoloration can-
200 DEG C ~ 200 DEG C, the temperature change requirement of cable jacket can be met very well.
Embodiment described above is a kind of preferable scheme of the utility model, is not made to the utility model any
Formal limitation, there are also other variations and modifications on the premise of not exceeding the technical scheme recorded in the claims.
Claims (5)
1. a kind of crosslinked polyetylene insulated smooth aluminium sheath power cable, it is characterised in that: including conductor, internal shield, insulation
The outside packet of layer, external shielding layer, smooth aluminium sheath and thermosensitive type oversheath, the conductor is equipped with internal shield, internal shield
Outside packet is equipped with insulating layer, and the outside packet of the insulating layer is equipped with external shielding layer, and the outside packet of the external shielding layer, which is equipped with, partly leads
The outside packet of electricity band or semi-conductive buffer water-blocking band, the semi-conductive tape or semi-conductive buffer water-blocking band is equipped with smooth aluminium sheath,
The outside packet of smooth aluminium sheath is equipped with thermosensitive type oversheath, and the smooth aluminium sheath is the smooth aluminium sheath of longitudinal wrap welding fabrication.
2. crosslinked polyetylene insulated smooth aluminium sheath power cable according to claim 1, which is characterized in that the temperature-sensitive
Type oversheath includes internal layer sheath, thermosensitive type outer protective sleeve and braiding layer, and the braiding layer is packaged in the outer of the internal layer sheath
Side, the thermosensitive type outer protective sleeve are packaged in the outer layer of the braiding layer.
3. crosslinked polyetylene insulated smooth aluminium sheath power cable according to claim 2, which is characterized in that the internal layer
The thickness of sheath is less than or equal to the thickness of the thermosensitive type outer protective sleeve, and the internal layer sheath is to be provided with several closed cavities
Sheath.
4. crosslinked polyetylene insulated smooth aluminium sheath power cable according to claim 2, which is characterized in that the braiding
Layer is wire sheathing.
5. crosslinked polyetylene insulated smooth aluminium sheath power cable according to claim 3, which is characterized in that the closing
Filled with leakage instruction powder in cavity, the loading of the leakage instruction powder is less than or equal to the closed cavity volume
40%。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820943736.6U CN209087425U (en) | 2018-06-19 | 2018-06-19 | Crosslinked polyetylene insulated smooth aluminium sheath power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820943736.6U CN209087425U (en) | 2018-06-19 | 2018-06-19 | Crosslinked polyetylene insulated smooth aluminium sheath power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209087425U true CN209087425U (en) | 2019-07-09 |
Family
ID=67113091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820943736.6U Expired - Fee Related CN209087425U (en) | 2018-06-19 | 2018-06-19 | Crosslinked polyetylene insulated smooth aluminium sheath power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209087425U (en) |
-
2018
- 2018-06-19 CN CN201820943736.6U patent/CN209087425U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190709 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |