CN202076025U - Refractory cable - Google Patents
Refractory cable Download PDFInfo
- Publication number
- CN202076025U CN202076025U CN 201120182576 CN201120182576U CN202076025U CN 202076025 U CN202076025 U CN 202076025U CN 201120182576 CN201120182576 CN 201120182576 CN 201120182576 U CN201120182576 U CN 201120182576U CN 202076025 U CN202076025 U CN 202076025U
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- China
- Prior art keywords
- cable
- conductor
- glass fiber
- high temperature
- insulating barrier
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- Expired - Lifetime
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Abstract
The utility model discloses a refractory cable, which comprises a cable core and a protective layer covering the external surface of the cable core. The cable core comprises one or more insulating wire cores; each insulating wire core comprises a conductor and an insulating layer extruded outside the conductor; and the insulating layer and the protective layer are both made of glass fibers. The insulating layer, a filling layer and the protective layer of the refractory cable are all made of the refractory glass fibers with quartz content over 90%; the glass fibers can be selected from models of different temperature grades according to requirements on different occasions, can reach 1200 DEG C maximally, and reach the fusing point of a copper conductor; therefore, the cable can be ensured to always work normally so long as the conductor is not fused in case of a fire hazard or a high-temperature occasion; and the fire resistance performance is quite good.
Description
Technical field
The utility model relates to a kind of cable, particularly a kind of flame-resistant high-temperature-resistant cable.
Background technology
Present domestic high temperature-resistant cable mainly contains three kinds: fluoroplastics, silicon rubber, mineral insulated cable.There is defective separately in these three kinds of cables: fluoroplastics cost an arm and a leg, though oxygen index 90 can decompose when high temperature, discharge toxic gas nearly; Silicon rubber intensity is low, and flame-retarding characteristic is not high.And these two kinds of material heatproofs all have only about 200 ℃; Inorganic insulation mineral cable cost height, production limited length system, complex procedures.
Chinese patent ZL201020149725.4 disclosed " a kind of high temperature fire resisting electric cable ", this cable are made of conductor, the positive and negative winding braid of high temperature yarn, the overlapping lapping layer of synthetic mica tape, high temperature yarn braid and protective layer from inside to outside successively.Though fire-resistant, resistant to elevated temperatures purpose that this cable reaches, its complex structure, cost height, and also mica layer comes off easily when crooked, influences fire resistance.
Chinese patent ZL201020134721.9 disclosed " a kind of high temperature-resistant cable ", its structure is that conductor adopts tinned copper wire, conductor surface insulation is that polytetrafluoroethylene, oversheath are silicon rubber.This cable is the most widely used high-temperature cable in the market, but its insulation high temperature resistantly can only reach 260 ℃, just can't use for higher temperature, the highlyest for tin coating can only bear 150 ℃ and (surpass this temperature, tin coating comes off easily), truly this cable is the highest can only reach 150 ℃.
Chinese patent ZL03209843.X open " a kind of metal sheath inorganic insulated cable ", the core that this cable adopts copper, copper alloy or other conducting metal to make, wrapped or the vertical insulating barrier made from inorganic material that is bundled into of ribbon, coat metallic sheath outside insulation, sheath adopts the metal tape clad welded to form.The cable complex manufacturing of this structure, cost height are not easy bending and lay.
The utility model content
The purpose of this utility model provides a kind of both can substitute in the market commonly used thermoplasticity, heat cured cable, make its temperature resistant grade reach the requirement of mineral insulated cable, but its production length is unrestricted again, and the high temperature-resistant cable of low cost of manufacture.
The technical scheme that realizes the utility model purpose is a kind of high temperature-resistant cable, comprises cable core and the sheath that is coated on the cable core outer surface; Described cable core comprises one or more insulated wire cores, and every eradication edge core comprises conductor and the insulating barrier that extrudes outside conductor; Described insulating barrier and described sheath are glass fibre.
Described insulating barrier is the structure that the wrapped or glass fiber band spiral of glass fiber band spiral coats one deck glass fiber braid after wrapped again; Described sheath is the structure that glass fiber band spiral coats one deck glass fiber braid after wrapped again.
Described cable core comprises when thoroughly doing away with the edge core more, also comprises packed layer; Described packed layer is a glass fibre, is filled between conductor and the insulating barrier.
Described conductor is that the stranded of sub-thread or multiply forms.
Adopted technique scheme, the utlity model has following beneficial effect: (1) insulating barrier of the present utility model, packed layer and sheath are all selected quartz content resistant to elevated temperatures glass fibre more than 90% for use, glass fibre is according to the needs of different occasions, can select the model of different temperatures grade for use, the highlyest can reach 1200 ℃, it has reached the copper conductor fusing point, thus in fire or high temperature occasion as long as conductor not before the fusing, can guarantee cable operate as normal always, fire resistance is very good.
(2) the utility model construction of cable simplicity of design, for mineral-insulated cable, cost is low, make more convenient, customized lengths is long, even and also can operate as normal under 1200 ℃ of flame bars, cable quality is light, high temperature resistant, can satisfy users' instructions for use, and greatly improve the reliability of the anti-fire of cable.
Description of drawings
Content of the present utility model is easier to be expressly understood in order to make, and according to specific embodiment also in conjunction with the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is a kind of structural representation of the present utility model, and cable adopts single core among the figure.
Fig. 2 is an another kind of structural representation of the present utility model, and cable adopts multicore among the figure.
Label is in the accompanying drawing:
Embodiment
(embodiment 1)
See Fig. 1, a kind of high temperature-resistant cable of present embodiment comprises cable core 1 and the sheath 2 that is coated on cable core 1 outer surface; Cable core 1 adopts one to thoroughly do away with the edge core, and insulated wire cores comprises conductor 11 and the insulating barrier 12 that extrudes outside conductor 11, and conductor 11 forms for sub-thread or the stranded of multiply; Insulating barrier 12 and described sheath 2 are glass fibre, and specifically, insulating barrier 12 is the wrapped structure of glass fiber band spiral; Sheath 2 coats the structure of one deck glass fiber braid after wrapped again for glass fiber band spiral.
(embodiment 2)
See Fig. 2, cable core 1 comprises 3 insulated wire cores and the packed layers 13 that evenly are provided with; After adopting glass fiber band spiral wrapped, insulating barrier 12 coats the structure of one deck glass fiber braid again; Packed layer 13 is a glass fibre, is filled between conductor 11 and the insulating barrier 12.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is a specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (4)
1. high temperature-resistant cable is characterized in that: comprise cable core (1) and be coated on the sheath (2) of cable core (1) outer surface; Described cable core (1) comprises one or more insulated wire cores, and every eradication edge core comprises conductor (11) and extrudes insulating barrier (12) outside conductor (11); Described insulating barrier (12) and described sheath (2) are glass fibre.
2. a kind of high temperature-resistant cable according to claim 1 is characterized in that: described insulating barrier (12) coats the structure of one deck glass fiber braid after wrapped again for the wrapped or glass fiber band spiral of glass fiber band spiral; Described sheath (2) coats the structure of one deck glass fiber braid after wrapped again for glass fiber band spiral.
3. a kind of high temperature-resistant cable according to claim 2 is characterized in that: described cable core (1) comprises when thoroughly doing away with the edge core more, also comprises packed layer (13); Described packed layer (13) is a glass fibre, is filled between conductor (11) and the insulating barrier (12).
4. according to the described a kind of high temperature-resistant cable of one of claim 1 to 3, it is characterized in that: described conductor (11) forms for sub-thread or the stranded of multiply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120182576 CN202076025U (en) | 2011-06-01 | 2011-06-01 | Refractory cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120182576 CN202076025U (en) | 2011-06-01 | 2011-06-01 | Refractory cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202076025U true CN202076025U (en) | 2011-12-14 |
Family
ID=45114117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120182576 Expired - Lifetime CN202076025U (en) | 2011-06-01 | 2011-06-01 | Refractory cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202076025U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024133810A1 (en) * | 2022-12-23 | 2024-06-27 | Thermocoax | Device for stripping a cable, in particular a shielded cable with mineral insulator |
-
2011
- 2011-06-01 CN CN 201120182576 patent/CN202076025U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024133810A1 (en) * | 2022-12-23 | 2024-06-27 | Thermocoax | Device for stripping a cable, in particular a shielded cable with mineral insulator |
| FR3144433A1 (en) * | 2022-12-23 | 2024-06-28 | Thermocoax | device for stripping a cable, in particular a shielded cable with mineral insulation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111214 |
|
| CX01 | Expiry of patent term |