CN105006279A - Ceramic fireproof cable with high flexibility - Google Patents
Ceramic fireproof cable with high flexibility Download PDFInfo
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- CN105006279A CN105006279A CN201510491698.6A CN201510491698A CN105006279A CN 105006279 A CN105006279 A CN 105006279A CN 201510491698 A CN201510491698 A CN 201510491698A CN 105006279 A CN105006279 A CN 105006279A
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- cable
- ceramic
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- mica tape
- cable core
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Abstract
The invention discloses a ceramic fireproof cable with high flexibility which comprises a cable core. The cable core is formed in such a manner that four insulation wire cores are twisted in parallel. The gaps of the cable core are filled with fillings. The cable core is wrapped in a package of ceramic silicone rubber wrapping tape. The package of ceramic silicone rubber wrapping tape is wrapped in the outermost through extrusion by a ceramic silicone rubber inner sheath. The uttermost layer of the cable is wrapped through extrusion by a low-smoke, halogen-free and frame retardant jacket. Each insulation wire core comprises a copper conductor, a first mica tape wrapped around the copper conductor, ethylene propylene insulating layer wrapped around the outside of the first mica tapes through extrusion and a second mica tape wrapped around the outside of the ethylene propylene insulating layer. The cable of the invention has a structure formed from ceramic silicon rubber and low smoke zero halogen flame retardant polyolefin materials, which make the cable resist fire and flames and possess high flexibility. Light in weight, the cable can be conveniently laid and the production length and the cross plane of the cable improve as well.
Description
Technical field
The present invention relates to field of cable technology, particularly relate to a kind of ceramic high flexibility fireproof cable.
Background technology
Flexible fire-proof cable, mineral insulated cable, in order to reach fireproofing of cable function, what the sheath of the cable of the type generally adopted is that embossing copper makes sheath, and because the fusing point of copper is at 1083 degrees Celsius, therefore in big fire, cable cover(ing) can not burn.The conductor material of cable is copper product, and what insulation adopted is synthetic mica tape, and what packing material adopted is inorganic matter, is generally magnesium hydroxide or aluminium hydroxide or its mixture.Because cable is inner without any organic material material, be inorganic matter, therefore all parts of cable can not burn, and therefore cable has fire protecting performance.
Prior art can be good at fire prevention, mainly there is the shortcoming of following two aspects:
(1) flexibility is poor: because cable cover(ing) is embossing copper pipe, the therefore non-constant of the bending property of whole cable, and the cable general bending radius of the type is cable size at 20D(D) more than, therefore cable is in production, has larger difficulty in laid processes.
(2) production limitation: the restriction making sheath production equipment owing to being subject to line copper, the maximum 1000mm2 in single-core cable cross section of the type, core cross section, multicore cable cross section is 240mm2 to the maximum.Because cable weight is very heavy, therefore, the single continuous length of fireproof cable of prior art is only 1KM, and environment for use has certain limitation.
Summary of the invention
The present invention, in order to solve the problem of prior art, provides a kind of ceramic high flexibility fireproof cable, and also have softness while having fire-resistant, anti-flaming function good, lightweight, be convenient to mounting and installation, production length and cross section are improved.
A kind of ceramic high flexibility fireproof cable of the present invention, comprises cable core, and described cable core forms by four insulated wire cores are in parallel stranded; Be provided with filler in the gap of cable core, at the outer wrapped Ceramic silicon rubber twining package tape of cable core, outside Ceramic silicon rubber twining package tape, extrude Ceramic silicon rubber inner sheath, extrude low-smoke and halogen-free flame retardant polyolefin jacket at the outermost layer of cable; Described insulated wire cores by copper conductor, wrapped the first mica tape outside copper conductor, be extruded in second third insulating barrier outside the first mica tape and wrapped the second mica tape outside second third insulating barrier is formed.
Further improvement, the Thickness Ratio between the first described mica tape and the second mica tape is 1:2.
Compared with prior art, beneficial effect of the present invention is:
1 ,+the mode of oversheath is protected in the structural formula that jacket structure of the present invention adopts, inner sheath is Ceramic silicon rubber inner sheath, oversheath is low-smoke and halogen-free flame retardant polyolefin jacket, compared with prior art, for adopting embossing copper as sheath, therefore the bending radius of cable is less, and the bending radius of such cable can reach 12D, therefore the flexibility of such cable is good, is convenient to lay;
Inner sheath and oversheath adopt the mode extruded, and what the core cross-sectional sizes of cable depended on extruder extrudes size, and therefore single core cross section of cable compared with prior art, is improved.
2, the present invention forms the material of cable is all copper, inorganic matter and Ceramic silicon rubber, can not combustion-supporting medium, and cable still can keep the energising of certain hour at the melting temperature close to copper; The structure that the present invention adopts Ceramic silicon rubber material to form, in flame more than 650 to 1300 degrees Celsius, through the time ablation of 90 to 180 minutes or more, silicon rubber can be burnt till hard ceramic housing in a short period of time, hard ceramic can ensure not short circuit in circuit ablation process, short circuit recklessly, do not prolong combustion, have good fire resistance, in addition cable outer sheath material is low-smoke and halogen-free flame retardant polyolefin jacket, and then enhances the fire resistance of cable.
3, have employed double-deck mica tape structure in insulated wire cores of the present invention; and adoption rateization design on thickness, makes the overall rounding property of cable better, improves each performance of insulated wire cores; also protect the conductor in insulated wire cores, make the longer service life of cable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
A kind of ceramic high flexibility fireproof cable as shown in Figure 1, comprises cable core, and described cable core forms by four insulated wire cores are in parallel stranded; Described insulated wire cores by copper conductor, wrapped the first mica tape outside copper conductor, be extruded in second third insulating barrier outside the first mica tape and wrapped the second mica tape outside second third insulating barrier is formed; Inorganics filled thing is provided with again in the gap of cable core, then at the outer wrapped Ceramic silicon rubber twining package tape of cable core, outside Ceramic silicon rubber twining package tape, extrude Ceramic silicon rubber inner sheath again, finally extrude low-smoke and halogen-free flame retardant polyolefin jacket at the outermost layer of cable.
In order to make the performance of cable be optimized further, the Thickness Ratio between the first described mica tape and the second mica tape is 1:2, and wherein, the thickness of the first mica tape is 0.25mm-0.5mm.
Embody rule approach of the present invention is a lot, and the above is only the preferred embodiment of the present invention, should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvement, these improvement also should be considered as protection scope of the present invention.
Claims (2)
1. a ceramic high flexibility fireproof cable, comprises cable core, it is characterized in that: described cable core forms by four insulated wire cores are in parallel stranded; Be provided with filler in the gap of cable core, at the outer wrapped Ceramic silicon rubber twining package tape of cable core, outside Ceramic silicon rubber twining package tape, extrude Ceramic silicon rubber inner sheath, extrude low-smoke and halogen-free flame retardant polyolefin jacket at the outermost layer of cable; Described insulated wire cores by copper conductor, wrapped the first mica tape outside copper conductor, be extruded in second third insulating barrier outside the first mica tape and wrapped the second mica tape outside second third insulating barrier is formed.
2. according to the ceramic high flexibility fireproof cable described in claim 1, it is characterized in that: the Thickness Ratio between the first described mica tape and the second mica tape is 1:2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510491698.6A CN105006279A (en) | 2015-08-12 | 2015-08-12 | Ceramic fireproof cable with high flexibility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510491698.6A CN105006279A (en) | 2015-08-12 | 2015-08-12 | Ceramic fireproof cable with high flexibility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105006279A true CN105006279A (en) | 2015-10-28 |
Family
ID=54378914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510491698.6A Pending CN105006279A (en) | 2015-08-12 | 2015-08-12 | Ceramic fireproof cable with high flexibility |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105006279A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113035431A (en) * | 2021-03-02 | 2021-06-25 | 郑缆科技股份有限公司 | High-stability environment-friendly fireproof cable |
| CN116504444A (en) * | 2023-06-27 | 2023-07-28 | 创进电缆有限公司 | High-flexibility fireproof cable and preparation method thereof |
-
2015
- 2015-08-12 CN CN201510491698.6A patent/CN105006279A/en active Pending
Non-Patent Citations (2)
| Title |
|---|
| 张玉龙: "《电气电子工程用塑料》", 31 January 2003 * |
| 汪多仁: "《现代高分子材料生产及应用手册》", 31 May 2002 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113035431A (en) * | 2021-03-02 | 2021-06-25 | 郑缆科技股份有限公司 | High-stability environment-friendly fireproof cable |
| CN116504444A (en) * | 2023-06-27 | 2023-07-28 | 创进电缆有限公司 | High-flexibility fireproof cable and preparation method thereof |
| CN116504444B (en) * | 2023-06-27 | 2023-08-29 | 创进电缆有限公司 | High-flexibility fireproof cable and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151028 |