CN202694846U - High-fire-resistance power cable with low-voltage special-shape conductor structure - Google Patents
High-fire-resistance power cable with low-voltage special-shape conductor structure Download PDFInfo
- Publication number
- CN202694846U CN202694846U CN 201220353677 CN201220353677U CN202694846U CN 202694846 U CN202694846 U CN 202694846U CN 201220353677 CN201220353677 CN 201220353677 CN 201220353677 U CN201220353677 U CN 201220353677U CN 202694846 U CN202694846 U CN 202694846U
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- power cable
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- cable
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Abstract
The utility model relates to a cable and in particular relates to a high-fire-resistance power cable with a low-voltage special-shape conductor structure. The high-fire-resistance power cable with the low-voltage special-shape conductor structure comprises a conductor, a fire-resistant insulation layer and an outer sheath covered on an outer layer and is characterized in that the conductor is fan-shaped or tile-shaped; and a cable-forming cladding layer is arranged between the fire-resistant insulation layer and the outer sheath. The cable provided by the utility model has the following characteristics of simple structure, easiness for manufacturing and maintaining, relatively low cost, convenience in operation, high fire resistance, and the like.
Description
Technical field
The utility model relates to a kind of cable, especially relates to the high fire resistance power cable of a kind of low pressure profile conductor structure.
Background technology
As everyone knows, the competition of cable industry, each producer all reduces production costs under the prerequisite of trying every possible means ensuring the quality of products of racking one's brains as much as possible.And the round conductor structure causes the material consumption of follow-up each procedure too high because of its laying up diameter conference.At present low-voltage-powered cable fire structure commonly used be round conductor and then outside conductor wrapped mica tape, because mica is easily broken and do not have again heat insulation effect behind sintering, so conductor temperature is crossed the shortcomings such as high current carrying capacity decline when adopting the fire-resisting cable of mica lapping structure to have high material consumption, flame retardant coating cracky, breaking out of fire.And conductor structure can occur during Mica tape during for special-shaped especially watt type structure with and conductor between have the situation in space, effect mica tape owing to pressure when the core stranding can break, so just do not have effect fire-resistant and insulation, do not cause conductor temperature rising current capacity to descend because mica does not possess heat-proof quality simultaneously.Adopt profile conductor can reduce the outside diameter of cable, the reduction of the outside diameter of cable also just means the just relative circular configuration of the material consumption of follow-up each procedure, and it is enough less.
Summary of the invention
The utility model mainly is for the existing above-mentioned technical problem of prior art, provides a kind of and can effectively reduce the outside diameter of cable, saves material, easy to use, the high fire resistance power cable of low pressure profile conductor structure that fire resistance is high.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: the high fire resistance power cable of a kind of low pressure profile conductor structure, comprise conductor, refractory insulating layer and be coated on outer field oversheath, it is characterized in that described conductor is fan-shaped or watt shape, is provided with the stranding lapping layer between described refractory insulating layer and the oversheath.The utility model is that the cable conductor employing is fan-shaped, watt type abnormally-structured, adopt ceramic silicon rubber as refractory insulating layer and oversheath, the utility model cable can solve mica tape can not wrapped problem on abnormally-structured conductor, can play simultaneously because adopting the profile conductor structure to reduce the advantage of the outside diameter of cable and subsequent material consumption, and because ceramic silicon rubber is forming behind the sintering that hard ceramic-like pipe still can hold its shape and not broken when standing external force, this material also possesses very excellent heat-proof quality and makes the operating conductor temperature can't be too high and do not affect the advantage such as current capacity simultaneously.
As preferably, described refractory insulating layer adopts ceramic silicon rubber integrally manufactured.Insulation and sheath all adopt the ceramic silastic material, it can become hard ceramic-like pipe and be wrapped in the insulating effect that isolated conductor is played in the conductor outside under high-temperature condition, and this material has heat-blocking action after sintering the ceramic-like material into, can effectively stop the rising of conductor temperature to make cable still keep original current capacity in flame.
As preferably, described stranding lapping layer is the nonwoven fabrics lapping layer.Easy and simple to handle, simple in structure.
As preferably, described oversheath adopts ceramic silicon rubber integrally manufactured.It is fire-resistant and heat insulation that insulating barrier and oversheath all adopt the ceramic silastic material to play a part, and too large variation does not occur the cable current capacity in the situation of flame combustion, and dual fire-resistant and thermal insulation protection effect is so that the utility model possesses excellent fire resistance.
Therefore, the utlity model has simple in structure, easy manufacturing, cost lower, easy to operate, safeguard simple, thermal endurance high.
Description of drawings
Accompanying drawing 1 is that conductor is fan-shaped a kind of structural representation in the utility model.
Accompanying drawing 2 is that conductor is a kind of structural representation of watt shape in the utility model.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1:
Shown in Figure of description 1,2, the high fire resistance power cable of a kind of low pressure profile conductor structure, comprise conductor 1, refractory insulating layer 2 and be coated on outer field oversheath 3, conductor 1 is fan-shaped or watt shape, is provided with stranding lapping layer 4 between refractory insulating layer 2 and the oversheath 3.Refractory insulating layer 2 adopts ceramic silicon rubber integrally manufactured.Stranding lapping layer 4 is the nonwoven fabrics lapping layer.Oversheath 3 adopts ceramic silicon rubber integrally manufactured.
Thereby being conductor, the utility model adopts fan-shaped or watt type structure to make the entire outer diameter of cable reduce to play when saving production cost, to have made things convenient for again the effect such as poling of laying of cable, refractory insulating layer and oversheath adopt the ceramic silastic material to do fire-resistant and heat insulation effect, simultaneously the ceramic silastic material of insulating barrier also can be used as insulating material and plays the consumption that the effect that insulating barrier and flame retardant coating are united two into one has reduced insulating material, because ceramic silicon rubber at high temperature can become the heat-proof quality that hard ceramic-like pipe is subjected to external force to be difficult for fragmentation and has excellence, it can play on the one hand the gear fire and play again on the other hand heat insulation effect with effect of isolating.Add cable of the present invention and adopt dual ceramic silicon rubber to do protective layer so that the easier test that plays high temperature and hyperthermal environments that stands of cable, do not affect again simultaneously cable in the flame situation current capacity thereby be the effect of having played high fire resistance.
Should be understood that this embodiment only is used for explanation the utility model and is not used in the scope of the present utility model that limits.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Claims (4)
1. high fire resistance power cable of low pressure profile conductor structure, comprise conductor (1), refractory insulating layer (2) and be coated on outer field oversheath (3), it is characterized in that described conductor (1) is fan-shaped or watt shape, is provided with stranding lapping layer (4) between described refractory insulating layer (2) and the oversheath (3).
2. the high fire resistance power cable of low pressure profile conductor structure according to claim 1 is characterized in that described refractory insulating layer (2) adopts ceramic silicon rubber integrally manufactured.
3. the high fire resistance power cable of low pressure profile conductor structure according to claim 1 and 2 is characterized in that described stranding lapping layer (4) is the nonwoven fabrics lapping layer.
4. the high fire resistance power cable of low pressure profile conductor structure according to claim 1 and 2 is characterized in that described oversheath (3) adopts ceramic silicon rubber integrally manufactured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220353677 CN202694846U (en) | 2012-07-20 | 2012-07-20 | High-fire-resistance power cable with low-voltage special-shape conductor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220353677 CN202694846U (en) | 2012-07-20 | 2012-07-20 | High-fire-resistance power cable with low-voltage special-shape conductor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202694846U true CN202694846U (en) | 2013-01-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220353677 Expired - Fee Related CN202694846U (en) | 2012-07-20 | 2012-07-20 | High-fire-resistance power cable with low-voltage special-shape conductor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202694846U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103325451A (en) * | 2013-07-09 | 2013-09-25 | 成都塑力电缆有限公司 | Novel flexible cable in small specification |
| CN104575692A (en) * | 2013-10-13 | 2015-04-29 | 宁夏海洋线缆有限公司 | Novel fan-shaped inner core cable |
-
2012
- 2012-07-20 CN CN 201220353677 patent/CN202694846U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103325451A (en) * | 2013-07-09 | 2013-09-25 | 成都塑力电缆有限公司 | Novel flexible cable in small specification |
| CN103325451B (en) * | 2013-07-09 | 2016-01-20 | 成都塑力电缆有限公司 | A kind of Novel flexible cable in small specification |
| CN104575692A (en) * | 2013-10-13 | 2015-04-29 | 宁夏海洋线缆有限公司 | Novel fan-shaped inner core cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20140720 |
|
| EXPY | Termination of patent right or utility model |