CN102394121B - Middle pressure fire-resisting cable - Google Patents
Middle pressure fire-resisting cable Download PDFInfo
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- CN102394121B CN102394121B CN201110327455.0A CN201110327455A CN102394121B CN 102394121 B CN102394121 B CN 102394121B CN 201110327455 A CN201110327455 A CN 201110327455A CN 102394121 B CN102394121 B CN 102394121B
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Abstract
The invention discloses in one and press fire-resisting cable, comprise at least one conductor (1), be disposed with conductor shield (2), insulating barrier (3), insulation screen (4), metal screen layer (6), flame retardant coating (8), oxygen barrier thermal insulation layer (9) and oversheath (10) outside described conductor (1), described flame retardant coating (8) is Ceramic silicon rubber layer; When above-mentioned conductor (1) is three, be provided with fire-retardant asbestos cord packed layer (5) between metal screen layer (6) and flame retardant coating (8), fire-retardant asbestos cord packed layer (5) is outside equipped with alkali-free glass wool band stranding lapping layer (7).In technical solution of the present invention, can form hard ceramic armor after high-temp combustion, protection circuit is unimpeded, and the ablation time is longer, and ceramic armour body is harder, has good insulation property, can ensure the fire-resistant, withstand voltage of cable completely; Product cost is low simultaneously, is easy to mounting and installation, easy to use.
Description
Technical field
The present invention relates to a kind of power transmission cable, specifically relate in a kind of low cigarette, Halogen, fire-retardant, fire-resistant, environment-friendly type and press fire-resisting cable.
Background technology
Along with the continuous progress of society, the raising of living standards of the people, people more and more pay attention to the safety in life, but people are at pursuit high-quality life, enjoy emporium, while the clustering lives such as grand theater, fire safety is also more and more important and urgent, reporting of comprehensive each conflagration, wherein electric wire spontaneous combustion and the fire caused accounts for significant proportion, and at fire again because the reason of electric wire causes the ratio of personnel self injures and deaths also to occupy very large ratio, such as, after fire occurs, the very short time bears the electric wire generation electric power transfer interruption of electric power transfer, cause elevator, illumination cisco unity malfunction, and people are tried in any path one could without heeding which one chose cause injures and deaths.
Current fire-resisting cable range of application is extensively, as: TV station, hospital, cinema, mall, subway, tunnel, railway, airport, station, large-scale Public Physical Education, public place of entertainment, large supermarket, hotel, skyscraper, military installations, nuclear power station, colliery, chemical industry, medicine, iron and steel, metallurgy, boats and ships, civilian etc.
The structure that usual fire-resisting cable adopts is wrapped mica tape, and not only production efficiency is low, and control difficulty is large, reliability is low, and mica tape can not bear too high voltage.Mica tape wants wrapped at conductive surface, but smooth rounding is wanted at the interface between midium voltage cable insulation and conductor, has one deck to extrude semi-conductive layer, prevent office high-volume excessive, if by Mica tape at conductive surface, cable local discharge amount will be caused to exceed standard, occur critical defect.
In addition, hardening, embrittlement after mica tape burning, is easy to come off.
Summary of the invention
Instant invention overcomes the deficiencies in the prior art, provide a kind of flameproof effect good cable.
For solving above-mentioned technical problem, the present invention by the following technical solutions:
A kind of fire-resisting cable, comprise at least one conductor, be disposed with conductor shield, insulating barrier, insulation screen, metal screen layer, flame retardant coating, oxygen barrier thermal insulation layer and oversheath outside described conductor, described flame retardant coating is Ceramic silicon rubber layer.
In order to realize the present invention better, further technical scheme is:
As preferably: above-mentioned conductor shield is semiconductive inner shield.
As preferably: above-mentioned insulating barrier is crosslinked polyetylene insulated layer.
As preferably: above-mentioned insulation screen is semiconductive external shield.
As preferably: above-mentioned metal screen layer is copper strip shielding.
As preferably: above-mentioned thermal insulation layer is refractory inorganic fiber layer.
As preferably: above-mentioned oversheath is polyvinyl chloride layer.
The present invention can also be:
As preferably: above-mentioned conductor is three, is disposed with conductor shield, insulating barrier, insulation screen and metal screen layer, is provided with fire-retardant asbestos cord packed layer between described metal screen layer and flame retardant coating outside described every root conductor.
As preferably: above-mentioned fire-retardant asbestos cord packed layer is outside equipped with alkali-free glass wool band stranding lapping layer.
Compared with prior art, the invention has the beneficial effects as follows:
In technical solution of the present invention, flame retardant coating is Ceramic silicon rubber, can form hard ceramic armor after the burning of this cable high-temperature; protection circuit is unimpeded, and temperature is higher, and the ablation time is longer; pottery armour body is harder, and has good insulation property, can ensure the withstand voltage of cable completely.Product cost is lower than existing fire-resisting cable simultaneously, is easy to mounting and installation, easy to use.
In addition, Ceramic silicon rubber is callable " green material ", also has good economic benefit.
Accompanying drawing explanation
Fig. 1 is single-core cable structural representation of the present invention;
Fig. 2 is three-core cable structural representation of the present invention.
Wherein, the name corresponding to the Reference numeral in accompanying drawing is called:
1-conductor, 2-conductor shield, 3-insulating barrier, 4-insulation screen, the fire-retardant asbestos cord packed layer of 5-, 6-metal screen layer, 7-alkali-free glass wool band stranding lapping layer, 8-flame retardant coating, 9-oxygen barrier thermal insulation layer, 10-oversheath.
Embodiment
Below in conjunction with Figure of description, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1
As shown in Figure 1, fire-resisting cable is pressed in one, comprise at least one conductor 1, be disposed with conductor shield 2, insulating barrier 3, insulation screen 4, metal screen layer 6, flame retardant coating 8, oxygen barrier thermal insulation layer 9 and oversheath 10 outside described conductor 1, described flame retardant coating 8 is Ceramic silicon rubber layer.
Above-mentioned conductor shield 2 is semiconductive inner shield; Above-mentioned insulating barrier 3 is crosslinked polyetylene insulated layer; Above-mentioned insulation screen 4 is semiconductive external shield; Above-mentioned metal screen layer 6 is copper strip shielding; Above-mentioned oxygen barrier thermal insulation layer 9 is refractory inorganic fiber layer; Above-mentioned oversheath 10 is polyvinyl chloride layer.
Fireproof cable described above has flame resistant cable refractory ability; standing under the direct combustion case of flame; (be not less than 3h) not within a certain period of time to be short-circuited and open circuit fault; guarantee to continue power supply to maintain illumination and signal transmission; protection personnel have time enough safe escape, and are beneficial to fire extinguishing and reduce the loss.
Residue after common fire-retardant, low cigarette macromolecular material and silicon rubber burn is ashes, very fast short circuit after being burnt; Ceramic fire-resisting cable silicon rubber has extraordinary fire prevention, fire-resistant, fire-retardant, low cigarette, nontoxic performance; residue simultaneously after its burning is ceramic-like duricrust; duricrust not melting under fire (600-1300 DEG C) environment; do not drip; ensure circuit not short circuit in the case of fire, not open circuit, thus ensure that the unimpeded of circuit, play firm protective effect; for life and the salvage operation of personnel, gain time to greatest extent.
Ceramic silicon rubber density of material 1.42g/cm3, tradition refractory material mica tape density >=2.0g/cm3, magnesium oxide mineral material density 8.9g/cm3, in cable product, the thickness of insulation and sheath is certain, therefore material volume is identical, so Ceramic silicon rubber just have dropped about 40%, therefore Integrated comparative, economic benefit is obvious.If: Costco Wholesale is lower than mica tape, far below magnesium oxide mineral insulation cable, in can meeting, the requirement of low, high pressure fireproof electric wire cable, can make insulate, flame retardant coating can make sheath again;
Embodiment 2
As shown in Figure 2, fire-resisting cable is pressed in one, conductor 1 is three, conductor shield 2, insulating barrier 3, insulation screen 4 and metal screen layer 6 is disposed with outside described every root conductor 1, fire-retardant asbestos cord packed layer 5 is provided with between described metal screen layer 6 and flame retardant coating 8, described fire-retardant asbestos cord packed layer 5 is outside equipped with alkali-free glass wool band stranding lapping layer 7, alkali-free glass wool band stranding lapping layer 7 is outer is flame retardant coating 8, oxygen barrier thermal insulation layer 9 and oversheath 10 successively, and flame retardant coating 8 is Ceramic silicon rubber layer.
Claims (1)
1. press fire-resisting cable in one kind, it is characterized in that: comprise three conductors (1), conductor shield (2), insulating barrier (3), insulation screen (4), metal screen layer (6) is disposed with outside described every root conductor (1), be provided with fire-retardant asbestos cord packed layer (5) between described metal screen layer (6) and flame retardant coating (8), described fire-retardant asbestos cord packed layer (5) is outside equipped with alkali-free glass wool band stranding lapping layer (7); Flame retardant coating (8) outside is disposed with oxygen barrier thermal insulation layer (9) and oversheath (10), and described flame retardant coating (8) is Ceramic silicon rubber layer, and the density of material of this Ceramic silicon rubber layer is 1.42g/cm
3; Described oxygen barrier thermal insulation layer (9) is refractory inorganic fiber layer; Described conductor shield (2) is semiconductive inner shield; Described insulating barrier (3) is crosslinked polyetylene insulated layer; Described insulation screen (4) is semiconductive external shield; Described metal screen layer (6) is copper strip shielding; Described oversheath (10) is polyvinyl chloride layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110327455.0A CN102394121B (en) | 2011-10-25 | 2011-10-25 | Middle pressure fire-resisting cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110327455.0A CN102394121B (en) | 2011-10-25 | 2011-10-25 | Middle pressure fire-resisting cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102394121A CN102394121A (en) | 2012-03-28 |
| CN102394121B true CN102394121B (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110327455.0A Active CN102394121B (en) | 2011-10-25 | 2011-10-25 | Middle pressure fire-resisting cable |
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| Country | Link |
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| CN (1) | CN102394121B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102890985A (en) * | 2012-09-26 | 2013-01-23 | 江苏山峰电缆有限公司 | Dual-core power cable |
| CN102881373A (en) * | 2012-10-18 | 2013-01-16 | 江苏荣宜电缆有限公司 | Fire-resisting cable |
| CN103050178B (en) * | 2012-11-14 | 2016-06-15 | 深圳市沃尔核材股份有限公司 | A kind of fireproof power cable |
| CN102938275B (en) * | 2012-11-19 | 2015-08-12 | 四川明星电缆股份有限公司 | A kind of fire-resistant medium and high voltage cable manufacture method |
| CN102938272B (en) * | 2012-11-19 | 2015-03-25 | 四川明星电缆股份有限公司 | Production method for fire-resistant middle-high voltage cables |
| CN103065718B (en) * | 2013-01-28 | 2015-08-05 | 深圳市沃尔核材股份有限公司 | A kind of fireproof power cable |
| CN103413606A (en) * | 2013-07-29 | 2013-11-27 | 成都亨通光通信有限公司 | Fireproof optical cable |
| CN103928091A (en) * | 2013-09-27 | 2014-07-16 | 安徽航天电缆集团有限公司 | High-temperature-resistant cable for computers and instruments |
| CN103700433A (en) * | 2013-12-04 | 2014-04-02 | 江苏南瑞淮胜电缆有限公司 | Fire-resistant medium-voltage flexible cable |
| CN104103372A (en) * | 2014-07-02 | 2014-10-15 | 安徽华通电缆集团有限公司 | Cross linked polyethylene insulating refractory power cable with rated voltage of 110kv |
| CN105336428A (en) * | 2014-08-08 | 2016-02-17 | 上海朗达电缆（集团）有限公司 | Fire-resistant medium voltage cable |
| CN105741936A (en) * | 2016-03-24 | 2016-07-06 | 江苏建中能源科技有限公司 | Fireproof cable |
| CN105957587A (en) * | 2016-06-30 | 2016-09-21 | 江苏珠影特种电缆有限公司 | Improved metal shielding monitoring type flame resistant cable for coal mine |
| CN106158133A (en) * | 2016-08-29 | 2016-11-23 | 远程电缆股份有限公司 | Middle pressure fireproof power cable |
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| CN2891229Y (en) * | 2006-03-03 | 2007-04-18 | 江苏亨通电力电缆有限公司 | Halogen-free low-smoke flame retardant chemical corrosion resistant power cable with rated voltage <=35kV |
| CN201667237U (en) * | 2009-10-23 | 2010-12-08 | 安徽太平洋电缆集团有限公司 | Novel mobile heat-resisting environment-protection frequency conversion cable |
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| CN202258433U (en) * | 2011-10-25 | 2012-05-30 | 四川鑫电电缆有限公司 | Medium-voltage flame retardant cable |
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| CN101169993B (en) * | 2007-11-21 | 2011-02-16 | 远东电缆有限公司 | Medium-voltage fire-proof cable |
| JP2010027423A (en) * | 2008-07-22 | 2010-02-04 | Hitachi Cable Ltd | Heat-resistant cable for high-speed transmission |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2891229Y (en) * | 2006-03-03 | 2007-04-18 | 江苏亨通电力电缆有限公司 | Halogen-free low-smoke flame retardant chemical corrosion resistant power cable with rated voltage <=35kV |
| CN201667237U (en) * | 2009-10-23 | 2010-12-08 | 安徽太平洋电缆集团有限公司 | Novel mobile heat-resisting environment-protection frequency conversion cable |
| CN201853530U (en) * | 2010-11-16 | 2011-06-01 | 安徽华通电缆集团有限公司 | Fireproof power cable |
| CN202258433U (en) * | 2011-10-25 | 2012-05-30 | 四川鑫电电缆有限公司 | Medium-voltage flame retardant cable |
Also Published As
| Publication number | Publication date |
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| CN102394121A (en) | 2012-03-28 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Medium voltage fire resistant cable Effective date of registration: 20211020 Granted publication date: 20150819 Pledgee: Bohai Bank Co.,Ltd. Chengdu Branch Pledgor: SICHUAN XINDIAN CABLES Co.,Ltd. Registration number: Y2021510000259 |
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Date of cancellation: 20221130 Granted publication date: 20150819 Pledgee: Bohai Bank Co.,Ltd. Chengdu Branch Pledgor: SICHUAN XINDIAN CABLES CO.,LTD. Registration number: Y2021510000259 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |