CN202563961U - Novel fire-proof power cable - Google Patents
Novel fire-proof power cable Download PDFInfo
- Publication number
- CN202563961U CN202563961U CN2012202082587U CN201220208258U CN202563961U CN 202563961 U CN202563961 U CN 202563961U CN 2012202082587 U CN2012202082587 U CN 2012202082587U CN 201220208258 U CN201220208258 U CN 201220208258U CN 202563961 U CN202563961 U CN 202563961U
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- power cable
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Abstract
The utility model discloses a novel fire-proof power cable which sequentially comprises a cable core group, a mineral asbestos rope filling layer, a second glass tape layer, a ceramic silica gel sheath layer and a braided layer from inside to outside. The cable core group comprises two to five cable cores, mica mineral tapes, ceramic silica gel insulating layers and first glass tape layers, and each mica mineral tape, each ceramic silica gel insulating layer and each first glass tape layer are sequentially wrapped outside each cable core. The novel fire-proof power cable overcomes the shortcoming of poor fire resistance of an existing power cable, and is high in fire-resistant temperature, long in fire-resistant time, simple in manufacturing technology and convenient to mount and use.
Description
Technical field
The utility model belongs to the power cable field, is specifically related to a kind of novel fire-type power cable.
Background technology
At present, a kind of fireproof cable that generally uses is copper pipe mineral cables, and cable core is that single copper conductor forms single core or multicore; Skin is the copper pipe of using as sheath, makes separator by magnesia between copper conductor and the copper pipe, though simple in structure; Can prevent fires, but need repeated annealing, drawing, labour intensity is big; Not only hardness is very big, and has increased construction cost and time; In addition, what also have to adopt is that magnesia mineral fire-proof insulation and mica tape twine and reach fire-resistant requirement, but owing to the outer jacket of magnesia fire-proof insulation cable has special requirement; Aspect practical application, receive restriction to a certain degree, and the refractory material that mica tape twines, because the restriction of technology; Often be prone to cause overlapping the slot place defective to occur, morning glow master tape embrittlement comes off easily; Also cause fire-resistant weak effect, at present, the fireproof cable that oneself knows; Time that can be fire-resistant does not all surpass 90 minutes, is difficult to the effect that reaches desirable.
The utility model content
The technical problem that the utility model will solve is the shortcoming to existing power cable fire resistance difference, and a kind of novel fire-type power cable that a kind of refractory temperature is high, fire resistance period is long, manufacturing process is simple, easy to install and use is provided.
In order to solve the problems of the technologies described above; The utility model provides following technical scheme: a kind of novel fire-type power cable; Wherein, Include cable core group, mineral stone cotton cord packed layer, the second glass fiber belt, potteryization silica gel restrictive coating and braid from the inside to the outside successively, the cable core group includes 2～5 cable cores, mica mineral band, potteryization silicone insulation layer and the first glass fiber belt, and mica mineral band, potteryization silicone insulation layer, the first glass fiber belt are wrapped in outside the single cable core successively.
Adopt a kind of novel fire-type power cable of the utility model technical scheme; Because a kind of novel fire-type power cable wherein, includes cable core group, mineral stone cotton cord packed layer, the second glass fiber belt, potteryization silica gel restrictive coating and braid from the inside to the outside successively; The cable core group includes 2～5 cable cores, mica mineral band, potteryization silicone insulation layer and the first glass fiber belt; Mica mineral band, potteryization silicone insulation layer, the first glass fiber belt are wrapped in outside the single cable core successively, are in outermost braid and at first play the fireproof effect, and mica mineral band, the first glass fiber belt, mineral stone cotton cord packed layer, the second glass fiber belt are the fire protecting performance excellent material and form; Potteryization silicone insulation layer, potteryization silica gel restrictive coating have possessed the performance of common silica gel under the normal temperature state; Softness, and in the time of 600～1300 ℃, can be cured as hard pottery, play anti-fire action; Therefore refractory temperature is high, manufacture craft is simple, and easy to install.
Further, a kind of novel fire-type power cable, wherein, described cable core many copper cash bundles strand of serving as reasons forms, and the area of section of cable core is 1.5～400 ㎜
2The more single copper conductor of cable core of many copper cash bundle strands is soft, helps installing and using.
Further, a kind of novel fire-type power cable, wherein, described mica mineral band is to be suppressed on the glass fiber guipure by mica powder to form.Mica powder has insulating properties, characteristics such as high temperature resistant, and it is suppressed on the glass fiber guipure, is convenient to processing, and intensive even distribution, helps further fire prevention.
Further again, a kind of novel fire-type power cable, wherein, described braid is the network structure that forms with copper wire, tinned copper wire, aluminum-magnesium alloy wire, steel wire, glass braid.The fusing point of copper is about 1083.4 ℃, and is hard; The fusing point of tin is about 232 ℃, and is soft, and the fusing point of aluminium is about 660 ℃, and is soft; Magnesium fusing point about 648.9 is soft; About 1515 ℃ of the fusing points of steel, hard, utilize the both favourable fire prevention of netted braid of copper, tinned copper wire, almag, steel wire, glass braid, avoid braid to melt, guaranteed the flexibility of power cable again, avoid influence to install and use.
Adopt a kind of novel fire-type power cable of the utility model technical scheme, when surrounding environment is in just often, cable core, potteryization silicone insulation layer, potteryization silica gel restrictive coating, the braid that the copper cash of bundle strand is formed all guaranteed the flexibility of cable; When the power cable surrounding environment was caught fire, at first, outermost braid can at first be prevented fires; Avoid the internal material calcination, make braid fusing, potteryization silica gel restrictive coating can form hard pottery fire prevention when temperature is too high; Secondly, when pottery was burnt the crack or damages, the mineral stone cotton cord packed layer and the second glass fiber belt were further prevented fires; And the first glass fiber belt, potteryization silicone insulation layer and mica mineral band are finally protected cable core, avoid cable core to receive the influence of flame high temperature, keep energising; Can bear 950 ℃ of high temperature; Under the situation that has bump or water to drench, safe power supply is about 3 hours, and refractory temperature is high, fire resistance period is long, manufacturing process is simple, easy to install and use.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model technical scheme is further specified:
Fig. 1 is the section structure sketch map of a kind of novel fire-type power cable embodiment of the utility model.
Embodiment
As shown in Figure 1; A kind of novel fire-type power cable of the utility model; Wherein, Include cable core group, mineral stone cotton cord packed layer 5, the second glass fiber belt 6, potteryization silica gel restrictive coating 7 and braid 8 from the inside to the outside successively, the cable core group includes 2～5 cable cores 1, mica mineral band 2, potteryization silicone insulation layer 3 and the first glass fiber belt 4, and mica mineral band 2, potteryization silicone insulation layer 3, the first glass fiber belt 4 are wrapped in outside the single cable core 1 successively; The cable core 1 many copper cash 9 bundle strand of serving as reasons forms, and the area of section of cable core 1 is 1.5～400 ㎜
2Mica mineral band 2 is to be suppressed on the glass fiber guipure by mica powder to form; Braid 8 is the network structures that form with copper wire, tinned copper wire, aluminum-magnesium alloy wire, steel wire, glass braid.
In the practical implementation process, the cable core group is made up of three cable cores 1, and the cross section of cable core 1 is 10 ㎜
2, certainly, if the cable core group adopts two, four or five cable cores 1 compositions, the area of section of cable core 1 is 1.5～400 ㎜
2In arbitrary data, also within the rights protection scope, when the power cable surrounding environment is caught fire; At first, outermost braid 8 can at first be prevented fires, and avoids the internal material calcination; Make braid 8 melt when temperature is too high, potteryization silica gel restrictive coating 7 can form hard pottery fire prevention, when the pottery that forms is burnt the crack or damages; The second glass fiber belt 6 is further prevented fires with mineral stone cotton cord packed layer 5; And the first glass fiber belt 4, potteryization silicone insulation layer 3 and mica mineral band 2 final protection cable cores 1 avoid cable core 1 to receive the influence of flame high temperature, make the cable core 1 that is formed by copper cash 9 bundle strands keep energising.
For a person skilled in the art; Under the prerequisite that does not break away from the utility model structure; Can also make some distortion and improvement, these also should be regarded as the protection range of the utility model, and these can not influence effect and practical applicability that the utility model is implemented.
Claims (4)
1. novel fire-type power cable; It is characterized in that: include cable core group, mineral stone cotton cord packed layer, the second glass fiber belt, potteryization silica gel restrictive coating and braid from the inside to the outside successively; The cable core group includes 2～5 cable cores, mica mineral band, potteryization silicone insulation layer and the first glass fiber belt, and mica mineral band, potteryization silicone insulation layer, the first glass fiber belt are wrapped in outside the single cable core successively.
2. a kind of novel fire-type power cable as claimed in claim 1 is characterized in that: described cable core many copper cash bundles strand of serving as reasons forms, and the area of section of cable core is 1.5～400 ㎜
2
3. a kind of novel fire-type power cable as claimed in claim 1 is characterized in that: described mica mineral band is to be suppressed on the glass fiber guipure by mica powder to form.
4. a kind of novel fire-type power cable as claimed in claim 1, it is characterized in that: described braid is the network structure that forms with copper wire, tinned copper wire, aluminum-magnesium alloy wire, steel wire, glass braid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202082587U CN202563961U (en) | 2012-05-10 | 2012-05-10 | Novel fire-proof power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202082587U CN202563961U (en) | 2012-05-10 | 2012-05-10 | Novel fire-proof power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202563961U true CN202563961U (en) | 2012-11-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202082587U Expired - Fee Related CN202563961U (en) | 2012-05-10 | 2012-05-10 | Novel fire-proof power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202563961U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109390098A (en) * | 2018-11-30 | 2019-02-26 | 人民电缆集团有限公司 | A kind of dual fireproof control cable structure |
-
2012
- 2012-05-10 CN CN2012202082587U patent/CN202563961U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109390098A (en) * | 2018-11-30 | 2019-02-26 | 人民电缆集团有限公司 | A kind of dual fireproof control cable structure |
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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: 20121128 Termination date: 20150510 |
|
| EXPY | Termination of patent right or utility model |