CN205104281U - A overhead insulated cable for tropical island area - Google Patents
A overhead insulated cable for tropical island area Download PDFInfo
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- CN205104281U CN205104281U CN201520889578.7U CN201520889578U CN205104281U CN 205104281 U CN205104281 U CN 205104281U CN 201520889578 U CN201520889578 U CN 201520889578U CN 205104281 U CN205104281 U CN 205104281U
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- density polyethylene
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Abstract
The utility model provides an overhead insulated cable for tropical island area, includes conductor, crosslinked polyethylene insulating layer, its characterized in that: the cladding has the high density polyethylene sheath outside the crosslinked polyethylene insulating layer to at the annular slot that the surface surround cable sets of high density polyethylene sheath multichannel was parallel to each other, the section of annular slot is the V -arrangement. The utility model discloses set up and to prevent that the insulating layer from by salt air corrosion, can solve the cable heat dissipation and setting up the contradiction between the sheath through the annular slot on the sheath behind the sheath to the wind pressure that the cable received can be reduced by annular slot, the swing of cable is slowed down.
Description
Technical field
The utility model belongs to the technical field of aerial insulated cable, especially a kind of aerial insulated cable for tropical Island.
Background technology
The advantage of aerial insulated cable owing to having plain conductor incomparable in electric property, security performance, economic performance etc., progressively plain conductor is replaced in electric power system, add the aerial insulated cable used in middle and high voltage transmission system, market prospects are very wide.
But, aerial insulated cable is because of unsettled erection, its structure only has the additional insulating barrier of stranded conductor (medium and high voltage cable is provided with conductor screen fraud layer) usually, insulation adopts crosslinked polyethylene, high density polyethylene (HDPE), LLDPE usually, but aerial cable is erected in the air, blowing of wind-engaging causes cable flexing comparatively conference generation shake, and cause and rub between fixing gold utensil, long-time friction very easily causes insulation thinning, finally worn out.Statistics aerial cable ruuning situation shows, the main factor affecting the aerial cable life-span with the gold utensil connector partial cables friction damage that insulate, and not wear-resisting also add of insulating sets up dragging difficulty, and, in the Island in the torrid zone, sea wind is more, and humidity in sea wind is very large, and can salt fog be formed, easily cause the corrosion of insulating barrier, it is anticorrosive to play that someone proposes outside insulating barrier, arrange sheath, wear-resisting effect, but, this area due to direct sunlight, illumination is strong, temperature is higher, aerial insulated cable can have influence on the heat radiation of cable after increasing sheath, therefore, how solving this contradiction is also the problem needing to consider.
Utility model content
The purpose of this utility model is to provide a kind of aerial insulated cable for tropical Island, by arranging the design of sheath and jacket structure, can corrode by salt fog resistance, can not have influence on again the heat dissipation problem of cable because of many one decks sheath.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of aerial insulated cable for tropical Island, comprise conductor, crosslinked polyetylene insulated layer, high density polyethylene (HDPE) sheath is coated with at crosslinked polyetylene insulated layer, and arrange around cable the ring-shaped groove that multiple tracks is parallel to each other on the surface of high density polyethylene (HDPE) sheath, the section of ring-shaped groove is V-shaped.
Preferably, in crosslinked polyetylene insulated layer, many steel wire ropes are buried underground along the length direction of cable.
Preferably, between conductor and crosslinked polyetylene insulated layer, be provided with conductor shield, between crosslinked polyetylene insulated layer and high density polyethylene (HDPE) sheath, be provided with insulation screen.
The beneficial effects of the utility model are:
1, insulating barrier can be prevented by salt air corrosion at insulating barrier outer cladding sheath, extend its service time, the ring-shaped groove that sheath is arranged, on the one hand, cable front face area can be reduced, and due to groove direction down the wind, therefore, it is possible to the blast that reduction cable is subject to, slow down the swing of cable, improve the friction between cable and fixing gold utensil, on the other hand, the area of dissipation of sheath self can be increased, be conducive to cable dissipate heat, therefore, ring-shaped groove can effectively solve the contradiction arranged between sheath and cable dissipate heat.
2, due in tropical Island, sea wind is more, wind-force is stronger, even have typhoon, therefore, the aerial insulated cable adopted in this area needs stronger wind loading rating, therefore, the utility model, by burying steel wire rope underground in insulating barrier, improves intensity and the wind loading rating of cable, adapts to local special environmental requirement.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of high density polyethylene (HDPE) jacket surface.
Mark in figure: 1, conductor, 2, crosslinked polyetylene insulated layer, 3, steel wire rope, 4, high density polyethylene (HDPE) sheath, 5, ring-shaped groove.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the utility model is further described.
As shown in the figure, a kind of aerial insulated cable for tropical Island, comprise conductor 1 from inside to outside, crosslinked polyetylene insulated layer 2 and high density polyethylene (HDPE) sheath 4, conductor 1 adopts aluminium stranded conductor, length direction along cable in crosslinked polyetylene insulated layer 2 is embedded with steel wire rope 3, the outer wall of high density polyethylene (HDPE) sheath 4 is evenly arranged multiple ring-shaped groove 5 be parallel to each other, the section of each ring-shaped groove 5 is V-arrangement, conductor shield is provided with between conductor 1 and crosslinked polyetylene insulated layer 2, insulation screen is provided with between crosslinked polyetylene insulated layer 2 and high density polyethylene (HDPE) sheath 4.
In structure of the present utility model, the steel wire rope 3 buried underground in crosslinked polyetylene insulated layer 2 effectively can strengthen intensity and the tensile resistance degree of aerial insulated cable self, the ring-shaped groove 5 that high density polyethylene (HDPE) sheath 4 is arranged then can reduce the front face area of cable, and when wind cable, because ring-shaped groove 5 can form multiple air exhaust passage, therefore the blast that cable is subject to just is reduced, slow down the amplitude of fluctuation of cable, thus, improve the friction between cable and fixing gold utensil, while ring-shaped groove 5 reduces cable front face area, compared to the sheath of common cable, ring-shaped groove 5 can increase again the area of dissipation of sheath, be beneficial to the heat radiation of cable, effective solution arranges the contradiction between sheath and cable dissipate heat.
Due in tropical Island, sea wind is more, wind-force is stronger, even have typhoon, therefore, the aerial insulated cable adopted in this area needs stronger wind loading rating, therefore, the utility model, by burying steel wire rope 3 in insulating barrier underground, improves intensity and the wind loading rating of cable, adapts to local special environmental requirement.
Preferably, described steel wire rope 3 also can adopt the material that other intensity are high, pull resistance is good to make, such as can select aramid fiber rope, or aramid fiber bundle substitutes described steel wire rope, and not only intensity is high for aramid fiber rope and aramid fiber bundle, and pull resistance is good, and, compared to steel wire rope, the last weight of cable will greatly reduce, and then reduces friction two ends being fixed to gold utensil.
Wherein, aramid fiber bundle can adopt following methods to obtain: first three aramid fiber yarns are twisted into fiber element mutually, and then again carry out stranded by multiply through the stranded fiber element obtained, finally obtain aramid fiber bundle.
Above-described is only preferred embodiment of the present utility model.Obviously, the utility model is not limited to above embodiment, can also have many distortion.All distortion that those of ordinary skill in the art can directly derive from content disclosed in the utility model or associate, all should think protection range of the present utility model.
Claims (3)
1. the aerial insulated cable for tropical Island, comprise conductor (1), crosslinked polyetylene insulated layer (2), it is characterized in that: be coated with high density polyethylene (HDPE) sheath (4) at crosslinked polyetylene insulated layer (2), and arrange around cable the ring-shaped groove (5) that multiple tracks is parallel to each other on the surface of high density polyethylene (HDPE) sheath (4), the section of ring-shaped groove (5) is V-shaped.
2. a kind of aerial insulated cable for tropical Island according to claim 1, is characterized in that: in crosslinked polyetylene insulated layer (2), bury many steel wire ropes (3) underground along the length direction of cable.
3. a kind of aerial insulated cable for tropical Island according to claim 1, it is characterized in that: between conductor (1) and crosslinked polyetylene insulated layer (2), be provided with conductor shield, between crosslinked polyetylene insulated layer (2) and high density polyethylene (HDPE) sheath (4), be provided with insulation screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520889578.7U CN205104281U (en) | 2015-11-10 | 2015-11-10 | A overhead insulated cable for tropical island area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520889578.7U CN205104281U (en) | 2015-11-10 | 2015-11-10 | A overhead insulated cable for tropical island area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205104281U true CN205104281U (en) | 2016-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520889578.7U Active CN205104281U (en) | 2015-11-10 | 2015-11-10 | A overhead insulated cable for tropical island area |
Country Status (1)
| Country | Link |
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| CN (1) | CN205104281U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810321A (en) * | 2016-04-11 | 2016-07-27 | 安徽国华电缆集团有限公司 | Novel computer cable |
| CN112466529A (en) * | 2020-11-30 | 2021-03-09 | 韩玉权 | Anti-interference and anti-stretching cable for communication equipment |
| CN118006025A (en) * | 2024-04-09 | 2024-05-10 | 玖开特种线缆(上海)有限公司 | Marine photovoltaic cable insulation sheath material and preparation method thereof |
-
2015
- 2015-11-10 CN CN201520889578.7U patent/CN205104281U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105810321A (en) * | 2016-04-11 | 2016-07-27 | 安徽国华电缆集团有限公司 | Novel computer cable |
| CN112466529A (en) * | 2020-11-30 | 2021-03-09 | 韩玉权 | Anti-interference and anti-stretching cable for communication equipment |
| CN118006025A (en) * | 2024-04-09 | 2024-05-10 | 玖开特种线缆(上海)有限公司 | Marine photovoltaic cable insulation sheath material and preparation method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |