CN204537740U - A kind of ceramic fire resistant fireproof cable - Google Patents
A kind of ceramic fire resistant fireproof cable Download PDFInfo
- Publication number
- CN204537740U CN204537740U CN201520203538.2U CN201520203538U CN204537740U CN 204537740 U CN204537740 U CN 204537740U CN 201520203538 U CN201520203538 U CN 201520203538U CN 204537740 U CN204537740 U CN 204537740U
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- China
- Prior art keywords
- ceramic
- fire
- resistant
- fireproof cable
- flame retardant
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Abstract
The utility model discloses a kind of ceramic fire resistant fireproof cable, belong to technical field of electric wires and cables.This cable comprises the conductor that ring-type flame retardant coating and at least two are arranged at ring-type flame retardant coating inside, ring-type flame retardant coating comprises the fire-resistant lapping layer of the ceramic set gradually from the inside to the outside, metal tape lock armo layer, the fire-resistant restrictive coating of ceramic, under severe burning situation, ceramic lapping layer and the fire-resistant sheath of ceramic are all sintered, three layers of hard housing are jointly formed with metal tape lock armo layer, by the many whole sealings of conductor in housing, many conductors are avoided to be scattered dispersion, and the hard protective effect of housing, avoid conductor to meet weight and clash into fracture, ensure the integrality of cable, the housing of the ceramic-like of the outermost ceramic of ring-type flame retardant coating fire-resistant restrictive coating formation simultaneously has good insulation property, avoid conductor short circuit, guarantee cable the severe burning such as fire and hot environment line unimpeded.
Description
Technical field
The utility model belongs to technical field of electric wires and cables, is specifically related to a kind of ceramic fire resistant fireproof cable.
Background technology
Cable is the equipment the most widely that delivery of electrical energy uses, in electrical transmission process, if there is short circuit or electric leakage, on conductor, the accumulation of heat is finally ignited the coating layer outside conductor, thus other combustibles that ignite, make fire out of control, or other combustibles catch fire to ignite and are coated on the coating layer of cable conductor, thus cause short circuit to leak electricity, and then cause fire, therefore need the clad structure from cable, and the aspect such as coated insulation flame retardant coating solves cable insulation fire resistance.
Applying more insulated cable is in the market mineral insulated cable, the powdered mineral such as most employing magnesia powder are closely knit is insulating barrier, conductive copper wire core, copper oversheath and insulating barrier are closely knit one, product is by the national standard of international standard IEC60702 ~ 2002 and Main Developed Countries, also there are corresponding GB GB/T13033 ~ 2007 in China, external production and the existing century-old history of use, domestic application also has the history of nearly 30 years, and widely use, as Grand National Theatre, Oriental Art Center etc. in numerous large project both domestic and external.The heavy in section of mineral insulated cable is the earliest long-pending can only be produced into single core, and oversheath drawing copper tubes technique makes cable length be subject to the restriction of maximum delivery length, need constantly to use joint in the process of installing, cable continuous length can not meet the requirement of client, transition joint need be used continuous, increase material and cost of labor, and need butt joint place electric property to do special processing, simultaneously, due to mineral insulated cable production technology more complicated, price is more expensive, hardness is larger, not easily bend during construction, above factor, cause mineral insulated cable manufacture and installation cost high, not easily form production in enormous quantities, the defect that installation difficulty is larger.For the above-mentioned defect of mineral cable, work out and adopt doped ceramics raw material proxy mineral insulating barrier in rubber-covered goods, avoid the defect that mineral insulation cost is high, but although this employing ceramic rubber overcomes the high defect of mineral insulation cost as insulating barrier, but need in the fabrication process the vulcanization of rubber, thus technique is loaded down with trivial details, and extruder has fastidious property, and the manufacture efficiency of cable is low.
Chinese patent CN203773998U discloses a kind of thermoplasticity ceramic low-smoke halogen-free polyolefin low-voltage insulation fire-resisting cable, comprise conductor, insulating layer of conductor, belting layer, restrictive coating and packed layer, belting layer is glass fibre belt, the fire resistant belts such as mica tape or Halogen band, restrictive coating is low-smoke halogen-free polyolefin restrictive coating, wherein ceramifiable thermoplastic's flame retardant coating is set between conductor and insulating barrier, the residue of ceramifiable thermoplastic's material under the hot environment of the severe burnings such as fire after calcination is ceramic-like inorganic matter, residual volume is greater than 80%, form the hard ceramic-like housing with cellular fine holes, this housing does not melt in combustion, do not drip, do not come off, and along with the rising of temperature and the prolongation of burning time, the housing of ceramic-like is harder, high temperature resistantly reach 2000 DEG C, good fire insulation can be played, the effect heat insulation and gear is fiery, also certain water pouring and the vibration of some strength can be born, therefore this ceramic flame retardant coating can prevent conductor exposed in a fire, avoid short circuit, but because this ceramifiable thermoplastic's flame retardant coating is the outside being wrapped in single conductor respectively, only can realize the protection respectively to single conductor, after polyolefin sheath layer in a fire outside conductor becomes ashes with fire resistant belt belting layer burning embrittlement, directly to be scattered between many conductors dispersion, meet weight shock and very easily cause conductor break, cable is caused normally to use.
Summary of the invention
In order to overcome the defect of prior art, the purpose of this utility model is to provide a kind of ceramic fire resistant fireproof cable, avoids cable inner conductor under severe burning situation to be scattered dispersion.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of ceramic fire resistant fireproof cable, comprise ring-type flame retardant coating, described ring-type flame retardant coating inside is provided with at least two conductors, and described ring-type flame retardant coating comprises the fire-resistant lapping layer of the ring-shaped potteryization set gradually from inside to outside, metal tape lock armo layer, the fire-resistant restrictive coating of ceramic.
The fire-resistant lapping layer of described ring-shaped potteryization is formed by ceramic fire resistant belt spiral winding.
Described ceramic fire resistant belt is ceramic high-polymer refractory materials composite band.
Described metal tape lock armo layer is stainless steel band lock armo layer.
The fire-resistant restrictive coating of described ceramic is the fire-resistant restrictive coating of ceramic low smoke, zero halogen polyolefin flame-retardant.
The thickness of described ring-shaped pottery flame retardant coating is 0.8 ~ 1.2mm.
The thickness of described metal lock armo layer is 0.5 ~ 0.7mm.
The thickness of the fire-resistant restrictive coating of described ceramic is 0.65 ~ 1.25mm.
Insulating barrier is equipped with outside every root conductor.
Described insulating barrier is ceramic low smoke, zero halogen polyolefin flame-retardant refractory masses.
The thickness of described insulating barrier is 0.8 ~ 2.6mm.
Filler is filled with in space between described ring-shaped pottery flame retardant coating and insulating barrier.
Described filler is glass fibre gasket for packing.
Described conductor forms by least two thin round copper wires are stranded; Or at least two strands stranded after thin round copper wire conductor twist again and form.It is soft that this conductor compares common twisted wire core, has good flexural property.
The utility model ceramic fire resistant fireproof cable, comprise the conductor that ring-type flame retardant coating and at least two are arranged at ring-type flame retardant coating inside, the fire-resistant lapping layer of the ceramic that ring-type flame retardant coating sets gradually from the inside to the outside, metal tape lock armo layer, the fire-resistant restrictive coating three-decker composition of ceramic, under severe burning situation, ring-shaped pottery lapping layer and the fire-resistant sheath of ceramic are all sintered into hard ceramic shell, three layers of hard housing are jointly formed with metal tape lock armo layer, by the many whole sealings of conductor in housing, many conductors are avoided to be scattered dispersion, and the hard protective effect of housing, avoid conductor to meet weight and clash into fracture, ensure the integrality of cable, the housing of the ceramic-like of the outermost ceramic of ring-type flame retardant coating fire-resistant restrictive coating formation simultaneously has good insulation property, avoid conductor short circuit, guarantee cable the severe burning such as fire and hot environment line unimpeded.
Preferably, the utility model ceramic fire resistant fireproof cable, the fire-resistant lapping layer of ceramic is formed by the coiling of ceramic high-polymer refractory materials composite band, ceramic-like housing is formed under having flame or nonflame condition at 350 DEG C ~ 2000 DEG C, intensity is high, good mechanical performance, electrical insulation capability is excellent, and the low cigarette of the flue gas after burning, Halogen, without phosphorus nitrogen, heavy metal free, the highest level that nontoxic, harmless, fume damage level of security reaches macromolecular material, will cause secondary to endanger to disaster-stricken people.
Preferably, the utility model ceramic fire resistant fireproof cable, the fire-resistant restrictive coating of ceramic adopts the fire-resistant restrictive coating of ceramic low smoke, zero halogen polyolefin flame-retardant, cable is made to have well high temperature resistant, anti-aging, excellent electrical property at normal temperatures, there is fire-retardant, Halogen, low cigarette feature, during burning, non-corrosiveness and toxicant and gas produce, and secondary will be caused to endanger to disaster-stricken people.
Preferably; the utility model ceramic fire resistant fireproof cable; at the arranged outside ceramic low smoke, zero halogen polyolefin flame-retardant refractory insulating layer of every root conductor; hard ceramic-like inorganic matter housing is formed after burning; further protection conductor, enable cable the severe burnings such as fire and hot environment line unimpeded.
Accompanying drawing explanation
Fig. 1 embodiment 1 ceramic fire resistant fireproof cable cross sectional representation;
Fig. 2 embodiment 2 ceramic fire resistant fireproof cable cross sectional representation.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail, but does not form any limitation of the invention.
Embodiment 1
Be illustrated in figure 1 the present embodiment ceramic fire resistant cable cross-section shape, by ring-type flame retardant coating 7 be arranged at inner three conductors 1 of ring-type flame retardant coating 7 and form; Wherein be enclosed with ceramic low smoke, zero halogen polyolefin flame-retardant refractory insulating layer 2 outside every root conductor; Ring-type flame retardant coating 7 is made up of the fire-resistant lapping layer of ceramic 4, stainless steel band lock armo layer 5, the fire-resistant restrictive coating 6 of ceramic low smoke, zero halogen polyolefin flame-retardant from the inside to the outside successively; The fire-resistant lapping layer of ceramic is formed by the fire-resistant composite band spiral winding of ceramic macromolecule; The thickness of the fire-resistant lapping layer of ceramic is 0.8 ~ 1.2mm; Lock armo layer thickness is 0.5 ~ 0.7mm; The fire-resistant restrictive coating thickness of ceramic low smoke, zero halogen polyolefin flame-retardant is 0.65 ~ 1.25mm; The thickness of the fire-resistant restrictive coating insulating barrier of ceramic low smoke, zero halogen polyolefin flame-retardant is 0.8 ~ 2.6mm; Conductor is thin round copper wire stranded conductor.
It should be noted that, the quantity of conductor, not by the restricted number of the conductor shown in the present embodiment, according to increasing or reduce, but can at least need two.
Embodiment 2
Be illustrated in figure 2 the present embodiment ceramic fire resistant cable cross-section shape, by ring-type flame retardant coating 7 be arranged at inner three conductors 1 of ring-type flame retardant coating 7 and form; Wherein be enclosed with ceramic low smoke, zero halogen polyolefin flame-retardant refractory insulating layer 2 outside every root conductor; Glass fibre gasket for packing filler 3 is provided with in ring-type flame retardant coating 7 and the space of conductor 1; Ring-type flame retardant coating 7 is made up of the fire-resistant lapping layer of ceramic 4, stainless steel band lock armo layer 5, the fire-resistant restrictive coating 6 of ceramic low smoke, zero halogen polyolefin flame-retardant from the inside to the outside successively; The fire-resistant lapping layer of ceramic is formed by the fire-resistant composite band spiral winding of ceramic macromolecule; The thickness of the fire-resistant lapping layer of ceramic is 0.8 ~ 1.2mm; Lock armo layer thickness is 0.5 ~ 0.7mm; The fire-resistant restrictive coating thickness of ceramic low smoke, zero halogen polyolefin flame-retardant is 0.65 ~ 1.25mm; The thickness of the fire-resistant restrictive coating insulating barrier of ceramic low smoke, zero halogen polyolefin flame-retardant is 0.8 ~ 2.6mm; Conductor be stranded after thin round copper wire conductor multiple stranded conductor.
It should be noted that, the quantity of conductor, not by the restricted number of the conductor shown in the present embodiment, according to increasing or reduce, but can at least need two.
Claims (9)
1. a ceramic fire resistant fireproof cable, it is characterized in that, comprise ring-type flame retardant coating, described ring-type flame retardant coating inside is provided with at least two conductors, and described ring-type flame retardant coating comprises the fire-resistant lapping layer of the ceramic set gradually from inside to outside, metal tape lock armo layer, the fire-resistant restrictive coating of ceramic.
2. ceramic fire resistant fireproof cable as claimed in claim 1, it is characterized in that, the fire-resistant lapping layer of described ceramic is formed by ceramic fire resistant belt spiral winding.
3. ceramic fire resistant fireproof cable as claimed in claim 2, it is characterized in that, described ceramic fire resistant belt is ceramic high-polymer refractory materials composite band.
4. ceramic fire resistant fireproof cable as claimed in claim 1, it is characterized in that, described metal tape lock armo layer is stainless steel band lock armo layer.
5. ceramic fire resistant fireproof cable as claimed in claim 1, it is characterized in that, the fire-resistant restrictive coating of described ceramic is the fire-resistant restrictive coating of ceramic low smoke, zero halogen polyolefin flame-retardant.
6. ceramic fire resistant fireproof cable as claimed in claim 1, is characterized in that, be equipped with insulating barrier outside every root conductor.
7. ceramic fire resistant fireproof cable as claimed in claim 6, it is characterized in that, described insulating barrier is ceramic low smoke, zero halogen polyolefin flame-retardant refractory masses.
8. ceramic fire resistant fireproof cable as claimed in claim 6, is characterized in that, be filled with filler in the space between described ring-shaped pottery flame retardant coating and insulating barrier.
9. ceramic fire resistant fireproof cable as claimed in claim 8, it is characterized in that, described filler is glass fibre gasket for packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520203538.2U CN204537740U (en) | 2015-04-07 | 2015-04-07 | A kind of ceramic fire resistant fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520203538.2U CN204537740U (en) | 2015-04-07 | 2015-04-07 | A kind of ceramic fire resistant fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204537740U true CN204537740U (en) | 2015-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520203538.2U Expired - Fee Related CN204537740U (en) | 2015-04-07 | 2015-04-07 | A kind of ceramic fire resistant fireproof cable |
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| CN (1) | CN204537740U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261414A (en) * | 2015-11-09 | 2016-01-20 | 金杯电工衡阳电缆有限公司 | Medium voltage fireproof electric cable |
| CN110189854A (en) * | 2019-05-28 | 2019-08-30 | 浙江联创如意电缆股份有限公司 | A kind of fire-retardant optical cable of ceramic |
| CN113178279A (en) * | 2020-01-24 | 2021-07-27 | 上海诺基亚贝尔股份有限公司 | Fire-resistant multi-conductor cable |
-
2015
- 2015-04-07 CN CN201520203538.2U patent/CN204537740U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261414A (en) * | 2015-11-09 | 2016-01-20 | 金杯电工衡阳电缆有限公司 | Medium voltage fireproof electric cable |
| CN110189854A (en) * | 2019-05-28 | 2019-08-30 | 浙江联创如意电缆股份有限公司 | A kind of fire-retardant optical cable of ceramic |
| CN113178279A (en) * | 2020-01-24 | 2021-07-27 | 上海诺基亚贝尔股份有限公司 | Fire-resistant multi-conductor 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20210407 |