CN204143951U - The expanding conductor medium-pressure power cable of a kind of resistant environmental low-smoke halogen-free flame - Google Patents
The expanding conductor medium-pressure power cable of a kind of resistant environmental low-smoke halogen-free flame Download PDFInfo
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- CN204143951U CN204143951U CN201420694670.3U CN201420694670U CN204143951U CN 204143951 U CN204143951 U CN 204143951U CN 201420694670 U CN201420694670 U CN 201420694670U CN 204143951 U CN204143951 U CN 204143951U
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Abstract
The utility model relates to the expanding conductor medium-pressure power cable of a kind of resistant environmental low-smoke halogen-free flame, belongs to power cable technical field.Technical scheme: conductor (2) cross section is fan-shaped, many conductors are combined into hollow and annular cross section together, and insulation filler (1) is filled in the middle vacancy in hollow and annular cross section, and many conductors are twisted at insulation filling beyond the region of objective existence, and the axis spiral along insulation filler is twisted; Semiconductive internal shield (3), insulating barrier (4), semiconductive outer shielding layer (5), metal screen layer (6), oxygen barrier belting layer (7), outer jacket (8) are coated on the outside in hollow and annular cross section successively.The hollow design of the utility model conductor structure increases the exterior surface area of conductor, thus increase the exterior surface area of Integral cable, increase the radiating effect of cable when normal work, current-carrying capacity of cable is improved under cross-sectional area of conductor amasss same case, reduce cable use cost, cable jacket is environmental-friendly halogen-free low-smoke design of material, improves fail safe.
Description
Technical field
The utility model relates to the expanding conductor medium-pressure power cable of a kind of resistant environmental low-smoke halogen-free flame, belongs to power cable technical field.
Background technology
Existing power cable is solid cable, there is the problems such as the outer junction of conductor is little, temperature rise is fast, heat dispersion is poor, in addition due to electric current kelvin effect, cause current-carrying capacity of cable little, because existing cable temperature rise is fast when causing electric energy loss Datong District with the existence of eddy current, its cable insulation is easily aging, restriction cable useful life.
Utility model content
The utility model object is to provide the expanding conductor medium-pressure power cable of a kind of resistant environmental low-smoke halogen-free flame, fill insulant in the expanding conductor adopting a kind of special external diameter to design, conductor thread core is done hollow process, increase the external place area of conductor and whole cable, increase the radiating effect of cable when normal work, thus increase the maximum carrying capacity of cable, reduce cable use cost, increase cable safety in utilization, solve the problems referred to above existed in background technology.
The technical solution of the utility model is: the expanding conductor medium-pressure power cable of a kind of resistant environmental low-smoke halogen-free flame, comprise insulation filler, conductor, semiconductive internal shield, insulating barrier, semiconductive outer shielding layer, metal screen layer, oxygen barrier belting layer and outer jacket, described cross-sectional area of conductor is fan-shaped, many conductors are combined into hollow and annular cross section together, insulation filler is filled in the middle vacancy in hollow and annular cross section, many conductors are twisted at insulation filling beyond the region of objective existence, and the axis spiral along insulation filler is twisted; Semiconductive internal shield, insulating barrier, semiconductive outer shielding layer, metal screen layer, oxygen barrier belting layer, outer jacket are coated on the outside in hollow and annular cross section successively.
The material of described outer jacket is environmental-friendly halogen-free low-smoke material.
The beneficial effects of the utility model are: fill insulant in the expanding conductor adopting a kind of special external diameter to design, the hollow design of conductor structure adds the exterior surface area of conductor, thus add the exterior surface area of Integral cable, increase the radiating effect of cable when normal work, current-carrying capacity of cable is improved when cross-sectional area of conductor amasss identical, reduce cable use cost, cable jacket is environmental-friendly halogen-free low-smoke design of material, greatly improves the fail safe that cable uses at Different high risk sites.
Accompanying drawing explanation
Fig. 1 is structure chart of the present utility model;
In figure: insulation filler 1, conductor 2, semiconductive internal shield 3, insulating barrier 4, semiconductive outer shielding layer 5, metal screen layer 6, oxygen barrier belting layer 7, outer jacket 8.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the utility model is described in further detail.
The expanding conductor medium-pressure power cable of a kind of resistant environmental low-smoke halogen-free flame, comprise insulation filler 1, conductor 2, semiconductive internal shield 3, insulating barrier 4, semiconductive outer shielding layer 5, metal screen layer 6, oxygen barrier belting layer 7 and outer jacket 8, described conductor 2 cross section is fan-shaped, many conductors are combined into hollow and annular cross section together, insulation filler 1 is filled in the middle vacancy in hollow and annular cross section, many conductors are twisted outside insulation filler 1, and the axis spiral along insulation filler 1 is twisted; Semiconductive internal shield 3, insulating barrier 4, semiconductive outer shielding layer 5, metal screen layer 6, oxygen barrier belting layer 7, outer jacket 8 are coated on the outside in hollow and annular cross section successively.
The material of described outer jacket 8 is environmental-friendly halogen-free low-smoke material.
In actual applications, the utility model comprises the copper conductor core at power cable center, vertical bag semiconductive internal shield respectively between conductor thread core inner. layers, being coated on successively above conductor is semiconductive internal shield 3, insulating barrier 4, semiconductive outer shielding layer 5, metal screen layer 6, oxygen barrier belting layer 7, outer jacket 8.Conductor thread core is done hollow process, increase the external place area of conductor and whole cable, increase the radiating effect of cable when normal work, thus increase the maximum carrying capacity of cable, reduce cable use cost, increase cable safety in utilization, conductor is twisted by many special-shaped conductors and forms the loop configuration of hollow simultaneously, protect the stability of positive cable conductor, increase conductor filled coefficient, make conductive surface more smooth and add cable use electrical security.Oxygen barrier belting layer, there is excellent fire insulation performance, can ensure that cable stops flame to the diffusion of cable core inside under the environment of burning, resistant environmental low-smoke halogen-free flame polyolefin outer jacket has excellent low-smoke and flame retardant performance, can ensure that cable does not produce toxic gas and not the spreading of flame support under the environment of burning, and there is self-extinguishment, ensure cable safe handling in the combustion environment.
Claims (2)
1. the expanding conductor medium-pressure power cable of resistant environmental low-smoke halogen-free flame, it is characterized in that: comprise insulation filler (1), conductor (2), semiconductive internal shield (3), insulating barrier (4), semiconductive outer shielding layer (5), metal screen layer (6), oxygen barrier belting layer (7) and outer jacket (8), described conductor (2) cross section is fan-shaped, many conductors are combined into hollow and annular cross section together, insulation filler (1) is filled in the middle vacancy in hollow and annular cross section, many conductors are twisted in insulation filler (1) outward, axis spiral along insulation filler (1) is twisted, semiconductive internal shield (3), insulating barrier (4), semiconductive outer shielding layer (5), metal screen layer (6), oxygen barrier belting layer (7), outer jacket (8) are coated on the outside in hollow and annular cross section successively.
2. the expanding conductor medium-pressure power cable of a kind of resistant environmental low-smoke halogen-free flame according to claim 1, is characterized in that: the material of described outer jacket (8) is environmental-friendly halogen-free low-smoke material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420694670.3U CN204143951U (en) | 2014-11-19 | 2014-11-19 | The expanding conductor medium-pressure power cable of a kind of resistant environmental low-smoke halogen-free flame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420694670.3U CN204143951U (en) | 2014-11-19 | 2014-11-19 | The expanding conductor medium-pressure power cable of a kind of resistant environmental low-smoke halogen-free flame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204143951U true CN204143951U (en) | 2015-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420694670.3U Active CN204143951U (en) | 2014-11-19 | 2014-11-19 | The expanding conductor medium-pressure power cable of a kind of resistant environmental low-smoke halogen-free flame |
Country Status (1)
| Country | Link |
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| CN (1) | CN204143951U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106782856A (en) * | 2016-12-27 | 2017-05-31 | 北京天成瑞源电缆有限公司 | Times capacity midium voltage cable |
-
2014
- 2014-11-19 CN CN201420694670.3U patent/CN204143951U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106782856A (en) * | 2016-12-27 | 2017-05-31 | 北京天成瑞源电缆有限公司 | Times capacity midium voltage cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 063000 Fengnan Economic Development Zone, Hebei Province, China Street, Patentee after: HEBEI HUATONG WIRES AND CABLES GROUP CO., LTD. Address before: 063000 Fengnan Economic Development Zone, Hebei Province, China Street, Patentee before: Hebei Huatong Cable Group Co., Ltd. |