CN203536075U - Bundle overhead insulation cable - Google Patents
Bundle overhead insulation cable Download PDFInfo
- Publication number
- CN203536075U CN203536075U CN201320718071.6U CN201320718071U CN203536075U CN 203536075 U CN203536075 U CN 203536075U CN 201320718071 U CN201320718071 U CN 201320718071U CN 203536075 U CN203536075 U CN 203536075U
- Authority
- CN
- China
- Prior art keywords
- conductor
- cable
- phase
- neutral conductor
- bunchy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 13
- 239000004020 conductor Substances 0.000 claims abstract description 65
- 230000007935 neutral effect Effects 0.000 claims abstract description 22
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 8
- 239000004411 aluminium Substances 0.000 claims abstract description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 5
- 230000002194 synthesizing effect Effects 0.000 claims description 8
- 230000004888 barrier function Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 241000272165 Charadriidae Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
Abstract
The utility model relates to a bundle overhead insulation cable. The bundle overhead insulation cable comprises three phase conductors and a neutral conductor, the phase conductors are aluminium-pressing round stranded conductors, the three phase conductors are distributed in a triangle shape, the neutral conductor is disposed at a middle part, and the phase conductors and the neutral conductor are stranded to form the cable; and the neutral conductor is an aluminium conductor steel-reinforced wire or an aluminium alloy conducting wire. An insulation layer is disposed outside each phase conductor. The bundle overhead insulation cable both has advantages of a single overhead insulation cable, and advantages of being high in strength, being simple to lay, being low in mounting, operation and maintenance cost, and being suitable for tunnels with small space.
Description
Technical field
The utility model relates to the technical field of aerial insulated cable structure, particularly a kind of bunchy aerial insulated cable.
Background technology
Along with the construction of city and country electrical network, increasing to the demand of aerial insulated cable and the scope of application.After use aerial insulated cable, can dwindle spacing and the parallel distance of cable infall, lay conveniently, flexibility is high, reduces the space passage taking, and can reduce greatly frequency of power cut and the electric shock accidents causing because of line fault, improve the safety and reliability of electrical network.But when single insulated aerial cable sets up, need lay three simultaneously, while laying workload large, set up many with gold utensil, set up cost and maintenance cost is high and not attractive in appearance; In order to reduce, disturb, between every cable, spacing is larger simultaneously, therefore takes up room greatly, is not suitable for the tunnel that scope is little and install; Single aerial cable is without carrying twisted wire, tensile property and resistance to snow and ice cover poor performance.Therefore, be necessary to provide a kind of lay simple, structural strength is high, the aerial insulated cable that suitable environment is wide.
Chinese patent literature 200920252362 discloses a kind of bunched aerial insulated cable, and this structure is fixed every conductor by insulation dowel, and cable flexibility and bending property are poor, and bending radius is large, and tensile strength is low, resistance to snow and ice cover poor performance.
Chinese patent literature 201020578598 discloses a kind of bunched aerial insulated cable, it is formed by three single core insulation cable twistings, and binding has carrying steel strand wire and individual wire outside it, it is built on stilts that this structure is applicable to 10kV, because conductor has interior screen, insulation, outer screen outward, and after stranded, is surrounded by oversheath, cable weight is large, the binding of employing individual wire, easy damaged insulating barrier, impacts cable performance.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, a kind of bunchy aerial insulated cable is provided, make it to retain the advantage of single aerial insulated cable, have simultaneously intensity high, lay simple, installation and operation, maintenance cost low, be applicable to the little advantages such as tunnel installation of spatial dimension.
To achieve these goals, the technical solution of the utility model is as follows:
A bunchy aerial insulated cable, it comprises three phase conductors and a neutral conductor, phase conductor is that aluminium presses circular stranded conductor, described three phase conductor triangularities layout, centre is provided with neutral conductor, and phase conductor is together with neutral conductor twisted synthesizing cable; Described neutral conductor is steel reinforced aluminium conductor or aluminium alloy conductor.Described every phase conductor is provided with insulating barrier outward.
Adopt above structure, owing to having adopted the neutral conductor of steel reinforced aluminium conductor or aluminium alloy conductor, and be located in the middle of three phase conductors, because neutral conductor has larger pull-off force, as carrying wire, use, can increase the intensity of cable, resistance to snow and ice cover performance is good; Three phase conductors are twisted together, while laying, only need lay an effect that can reach three single-core cables, reduced laid down cost and laid taking up room; Phase conductor and neutral conductor twisted synthesizing cable, do not adopt wire binding, with respect to the structure directly with dowel, each phase conductor being linked together, flexibility and the bending property of cable have been improved, with respect to the structure that adopts wire binding, reduced cable weight, Damage to insulation while simultaneously avoiding individual wire to tie up, causes a hidden trouble to cable running safety.
In addition, not loose in order to guarantee cable, by phase conductor and neutral conductor twisted synthesizing cable, during twisted synthesizing cable, in the time of for assurance cable flexibility, reduce costs, chosen suitable twisting pitch.
As can be seen here, this bunchy aerial insulated cable not only retains the advantage of single aerial insulated cable, have simultaneously intensity high, lay simple, installation and operation, maintenance cost low, be applicable to the little advantages such as tunnel installation of spatial dimension.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, phase conductor; 2, insulating barrier; 3, neutral conductor.
Embodiment
As shown in Figure 1, bunchy aerial insulated cable described in the utility model comprises three phase conductors 1, phase conductor 1 is circular stranded conductor for aluminium presses, outside every phase conductor 1, be provided with insulating barrier 2, the material of insulating barrier 2 is black crosslinkable polyethylene or weather-resistance polyethylene, and the thickness of insulating barrier 2 is different and different according to phase conductor 1 cross section.At three phase conductors 1, be in triangular distribution, in the middle of them, be provided with neutral conductor 3, neutral conductor 3 is steel reinforced aluminium conductor or aluminium alloy conductor, there is larger pull-off force, can as carrying wire, use simultaneously, neutral conductor 3 is outer also can coated insulation layer, described phase conductor 1 and neutral conductor 3 twist together by cabler, for avoiding stranded rear finished product loose, when stranded, need to choose suitable pitch, be generally 14 times to 19 times of twisted synthesizing cable external diameter, simultaneously, termination can adopt plastics mark to draw card that it is fastening, avoid adopting wire binding Damage to insulation.
Claims (5)
1. a bunchy aerial insulated cable, it comprises three phase conductors (1), phase conductor (1) is circular stranded conductor for aluminium presses; It is characterized in that, in described three phase conductors (1) triangularity, arrange, centre is provided with neutral conductor (3), and phase conductor (1) and neutral conductor (3) twisted synthesizing cable are together; Described neutral conductor (3) is steel reinforced aluminium conductor or aluminium alloy conductor; Described every phase conductor is provided with insulating barrier outward.
2. bunchy aerial insulated cable according to claim 1, is characterized in that: the twisting pitch of phase conductor and neutral conductor twisted synthesizing cable is 14 times to 19 times of external diameter after twisted synthesizing cable.
3. bunchy aerial insulated cable according to claim 1 and 2, is characterized in that: the termination of described insulated cable adopts plastics mark to draw card that it is fastening.
4. bunchy aerial insulated cable according to claim 1 and 2, is characterized in that: described neutral conductor is coated insulation layer also.
5. bunchy aerial insulated cable according to claim 4, is characterized in that: described insulating layer material is crosslinkable polyethylene or weather-resistance polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320718071.6U CN203536075U (en) | 2013-11-13 | 2013-11-13 | Bundle overhead insulation cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320718071.6U CN203536075U (en) | 2013-11-13 | 2013-11-13 | Bundle overhead insulation cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203536075U true CN203536075U (en) | 2014-04-09 |
Family
ID=50422257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320718071.6U Expired - Lifetime CN203536075U (en) | 2013-11-13 | 2013-11-13 | Bundle overhead insulation cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203536075U (en) |
-
2013
- 2013-11-13 CN CN201320718071.6U patent/CN203536075U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |