CN202694916U - Novel single-core fireproof cable with jacket - Google Patents
Novel single-core fireproof cable with jacket Download PDFInfo
- Publication number
- CN202694916U CN202694916U CN 201220353687 CN201220353687U CN202694916U CN 202694916 U CN202694916 U CN 202694916U CN 201220353687 CN201220353687 CN 201220353687 CN 201220353687 U CN201220353687 U CN 201220353687U CN 202694916 U CN202694916 U CN 202694916U
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- fire
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- cable
- novel single
- fireproof
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Abstract
The utility model relates to a cable, in particular to a novel single-core fireproof cable with a jacket. The novel single-core fireproof cable with the jacket comprises a conductor, wherein an insulating layer is arranged outside the conductor. The novel single-core fireproof cable with the jacket is characterized in that the insulating layer is a fire-resistant mica tape which is wrapped on the conductor; a composite fire-resistant heat-insulation layer which is made of a ceramic fireproof and fire-resistant composite tape is sleeved outside the insulating layer; a fireproof layer is arranged outside the composite fire-resistant heat-insulation layer; and a flame-retardant protection sleeve is arranged outside the fireproof layer. The novel single-core fireproof cable with the jacket has the characteristics of high fireproof performance, convenience for installation, high bending performance, simple process, good fire-resistant and fire-retardant effect and the like, and is cost-saving.
Description
Technical field
The utility model relates to a kind of cable, especially relates to the novel single core fireproof cable of a kind of band sheath.
Background technology
As everyone knows, what present domestic high request fireproof cable adopted is the level and smooth copper sheath structural cable of magnesium oxide mineral insulation, it is the interpolation magnesium oxide technique by drawing then in the copper sheath that this cable adds what adopt man-hour, therefore the cable joint length is generally all shorter, only have 100 meters, and the bending property of cable is poor, and laying installation is very difficult.The easy moisture absorption of magnesium oxide, joint length is limited, is not suitable for mobile, vibration place.Simultaneously this structural cable project investment is very huge, and the cost recovery cycle is long, and the cable commercial value is high.In a word, adopt magnesium oxide as the mineral insulated cable of insulating material following weak point to be arranged: 1. cable processing percent defective is high, and production cost is high; 2. the easy moisture absorption of magnesium oxide, joint length is limited, is not suitable for mobile, vibration place; 3. bending property is poor, and laying installation is very difficult.
Summary of the invention
The utility model mainly is for the existing above-mentioned technical problem of prior art, a kind of easy moisture absorption of magnesium oxide in single core mineral insulated cable that efficiently solves is provided, the problems such as joint length is limited, can the identical fire-proof function of bonding core mineral insulated cable, can do again length and laying installation convenient, the novel single core fireproof cable of the band sheath of good bending property.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: the novel single core fireproof cable of a kind of band sheath, comprise conductor, conductor is provided with insulating barrier outward, it is characterized in that described insulating barrier is wrapped fire-resistant isinglass belt on conductor, described insulating barrier is arranged with the composite fire thermal insulation layer that adopts ceramic fireproof＝fire-proof composite band to make outward, described composite fire thermal insulation layer is provided with fireprotection layer outward, and described fireprotection layer is provided with fire-retardant protective jacket outward.The utility model efficiently solves the easy moisture absorption of magnesium oxide in single core mineral insulated cable, the problems such as joint length is limited, can the identical fire-proof function of bonding core mineral insulated cable, can do again length and laying installation convenient, good bending property, be fit to mobile, the vibration place, investment is low again saves cost than mineral insulated cable, processing technology is simple, and by test, cable is under 950 ℃～1000 ℃ flame temperatures, burning 180min(is than long one times of common fire-resisting cable time), have very good fire-resistant and anti-flaming function, the rated voltage of energising cable during burning, neither one fuse or circuit breaker disconnect; Conductor is continuous, and namely bulb does not extinguish.
As preferably, described fireprotection layer is the embossing copper sheath.Adopt the embossing copper sheath, not only prevent fires but also can Effective Raise cable bend performance.
As preferably, described fire-retardant protective jacket adopts the low smoke, zero halogen polyolefin to extrude and makes.Has very good fire-resistant and anti-flaming function.
As preferably, described conductor is single core copper conductor.Processing technology is simple, cheap for manufacturing cost.
Therefore, the utlity model has the characteristics such as fire protecting performance is good, easy for installation, good bending property, processing technology is simple, fire resistant flame retardant is effective, saving cost.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present 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, the novel single core fireproof cable of a kind of band sheath, comprise conductor 1, conductor is provided with insulating barrier 2 outward, insulating barrier 2 is wrapped fire-resistant isinglass belt on conductor, insulating barrier is arranged with the composite fire thermal insulation layer 3 that adopts ceramic fireproof＝fire-proof composite band to make outward, and the composite fire thermal insulation layer 3 outer fireprotection layers 4 that are provided with are provided with fire-retardant protective jacket 5 outside the fireprotection layer 4.Fireprotection layer 4 is the embossing copper sheath.Fire-retardant protective jacket 5 adopts the low smoke, zero halogen polyolefin to extrude and makes.Conductor is single core copper conductor.
Twine fire-resistant isinglass belt as the insulating barrier of cable at copper conductor, and with ceramic fireproof＝fire-proof composite band as the composite fire thermal insulation layer, improve the heat insulation and flameproof effect of cable, adopt the embossing copper sheath, raising fireproofing of cable and bending property.The power frequency dielectric strength of fire-resistant isinglass belt is 10MV/m under the normal temperature, specific insulation 〉=1.0 * 1010 Ω m; Ceramic fireproof＝fire-proof composite band power frequency dielectric strength is 36MV/mm, specific insulation 〉=1.0 * 1012 Ω m, but the highest heatproof reaches 3000 ℃; So the fusing point of copper be 1083 ℃ when its temperature is no more than 1000 ℃, most places be can because of the fusing or the burning not disintegrate, more can not propagate kindling material.The utility model performance is consistent with the normal cable property retention.Surpassing under 1000 ℃ of environment at flame, even after the fusing of outside copper sheath, the ceramic fireproof＝fire-proof composite band of the inside can expand rapidly, forms fine and close porous carbon layer, plays good refractory heat-insulating effect; The mica tape of guaranteeing the inside can be not damaged when vibration yet, guaranteed its insulating properties.Adopt said structure, when cable under flame environment, can be rapidly heat insulation, oxygen barrier, slow down the conduction of heat, effectively protected the core normal power supply.
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. be with the novel single core fireproof cable of sheath for one kind, comprise conductor (1), conductor is provided with insulating barrier (2) outward, it is characterized in that described insulating barrier (2) is wrapped fire-resistant isinglass belt on conductor, described insulating barrier is arranged with the composite fire thermal insulation layer (3) that adopts ceramic fireproof＝fire-proof composite band to make outward, the outer fireprotection layer (4) that is provided with of described composite fire thermal insulation layer (3), the outer fire-retardant protective jacket (5) that is provided with of described fireprotection layer (4).
2. the novel single core fireproof cable of band sheath according to claim 1 is characterized in that described fireprotection layer (4) is the embossing copper sheath.
3. the novel single core fireproof cable of band sheath according to claim 1 and 2 is characterized in that described fire-retardant protective jacket (5) adopts the low smoke, zero halogen polyolefin to extrude and makes.
4. the novel single core fireproof cable of band sheath according to claim 1 and 2 is characterized in that described conductor is single core copper conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220353687 CN202694916U (en) | 2012-07-20 | 2012-07-20 | Novel single-core fireproof cable with jacket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220353687 CN202694916U (en) | 2012-07-20 | 2012-07-20 | Novel single-core fireproof cable with jacket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202694916U true CN202694916U (en) | 2013-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220353687 Expired - Fee Related CN202694916U (en) | 2012-07-20 | 2012-07-20 | Novel single-core fireproof cable with jacket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202694916U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762029A (en) * | 2014-01-09 | 2014-04-30 | 颐龙轨道交通设备（苏州）有限公司 | Fireproof ceramic cable |
| CN103915194A (en) * | 2014-03-12 | 2014-07-09 | 安徽省高沟电缆有限公司 | Low-smoke and halogen-free fireproof double-shielded cable resistant to high temperature |
-
2012
- 2012-07-20 CN CN 201220353687 patent/CN202694916U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762029A (en) * | 2014-01-09 | 2014-04-30 | 颐龙轨道交通设备（苏州）有限公司 | Fireproof ceramic cable |
| CN103915194A (en) * | 2014-03-12 | 2014-07-09 | 安徽省高沟电缆有限公司 | Low-smoke and halogen-free fireproof double-shielded cable resistant to high temperature |
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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 |
Owner name: ZHEJIANG WANMA CO., LTD. Free format text: FORMER NAME: ZHEJIANG WANMA CABLE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 311305 Ling'an Economic Development Zone, Zhejiang Province, South Ring Road, No. 88, No. Patentee after: ZHEJIANG WANMA CO., LTD. Address before: 311305 Ling'an Economic Development Zone, Zhejiang Province, South Ring Road, No. 88, No. Patentee before: Zhejiang Wanma Cable Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20160720 |