CN102376386A - Fire-resisting cable - Google Patents
Fire-resisting cable Download PDFInfo
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- CN102376386A CN102376386A CN2010102513456A CN201010251345A CN102376386A CN 102376386 A CN102376386 A CN 102376386A CN 2010102513456 A CN2010102513456 A CN 2010102513456A CN 201010251345 A CN201010251345 A CN 201010251345A CN 102376386 A CN102376386 A CN 102376386A
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- resisting cable
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Abstract
The invention relates to an improvement on a fire-resisting cable, which is characterized in that a basalt fiber braided sleeve is arranged outside a conductor mica layer. The insulation property and the fire resistance are unified. Both mica and basalt fibers can bear a high temperature of over 950 DEG C and are good insulating materials, so the fire-resisting cable simultaneously has excellent insulating property and fire-resisting performance, a long-term working and using temperature is also greatly improved and an actual working and using temperature can reach over 950 DEG C. A basalt fiber layer is braided outside the mica, so that not only is the cable ensured to still have excellent fire-resisting performance after being moved frequently, but also the insulating layer structure of the cable can be ensured to be complete after the cable is burnt at a high temperature, i.e. the insulating property and the fire-resisting performance of the cable are kept unchanged and the original properties are kept under the conditions of being moved, being burnt, and being at the high temperature. Particularly, a fire-resisting metal sleeve is externally added, so that the fire-resisting cable can withstand the vibration, the impact and the water spraying, the requirements on fire fighting and rescue after a fire occurs are met, and the fire-resisting cable can still be used in a movable place during the fire or after the fire.
Description
Technical field
The invention relates to improvement to fire-resisting cable, relate in particular to a kind of can be used for moving occasion, fire resistance superior, and can reusable fire-resisting cable.
Background technology
The fire-resisting cable operative norm mainly contains two types at present: common fire-resisting cable, and 750 ℃ burnt 90 minutes, and cable does not puncture; Mineral insulated cable, 950 ℃ of burnings 180 minutes, cable does not puncture, and the after vibration 15 minutes of catching fire sprayed 15 minutes, and cable does not still puncture.Detect according to aforementioned cable fire resistance, fire-resisting cable can have three kinds of versions:
With magnesia is the fire-resisting cable of insulating barrier overcoat copper pipe, typical case such as Chinese patent CN2432659 fireproof cable.Though this type of cable has fine fire resistance, and catch fire the process of suing and labouring and after still can use.But major defect is an insulating barrier is the rigid refractory material of magnesia, and the cable bending property is poor, can only be used for fixing to lay occasion, can not be used for moving occasion and use; Secondly, manufacturing processing technic is complicated, needs special production equipment, and the cost cost is high, and receives manufacturing process constraint cable length shorter, causes cable joint more, and the water-proofing treatment of joint is difficulty comparatively; Besides, the in a single day damaged insulation property of copper pipe can descend rapidly, and insulation property also can sharply descend under the high temperature.Chinese patent CN201075312 mineral insulated cable, copper sheath adopt copper strips wraparound moulding argon arc longitudinal seam welding cover, though improved common mineral insulated cable production length issue, other shortcoming is not overcome yet.
Conductor outsourcing flame retardant coating, the typical case has mica insulation fire-resistant, typical structure: conductor+mica tape is wrapped+the insulation three-decker.Insulating barrier adopts cable customary insulation material-polyvinyl chloride or polyethylene usually; Working temperature is low, is generally 70-90 ℃, and the chance fire has melted and become ashes; Cause flame retardant coating-mica to lose outer protection; Under the situation that cable is vibrated, cause the mica layer of efflorescence to come off, can not use when therefore putting out a fire; Same often moving also can cause mica layer to come off, and cable loses the insulated fireproof performance once burning, causes cable breakdown, therefore can not be used for often moving occasion usually.Press fire-resisting cable among the Chinese patent CN2814625; Its structure is conductor+crosslinked polyetylene insulated+copper strips screen+mica tape+alkali-free glass wool band; Cause conductor and braiding to produce the gap between the glassy layer in crosslinked polyetylene insulated thawing after the burning; Cause flame retardant coating loosening, the glass fiber band does not have the mica tape effect of holding tightly; Simultaneously because glass fiber band refractoriness is not high, and the mica layer of efflorescence can not be waited until effective protection behind high-temp combustion, equally can not be in the process of suing and labouring of catching fire, and use the back that catches fire.
Porcelain silicone insulation fire-resisting cable is outside conductor, to extrude the fire-resistant silicon rubber that one deck is met high temperature ability potteryization, and normal the use has soft insulating properties, and after catching fire, is transformed into self-supporting duricrust ceramic insulation shell.Chinese patent CN101488374 insulation high temperature fire resisting electric cable made of soft ceramic for example; Chinese patent CN1671823 siloxane polymer; Chinese patent CN101794643A fireproof flexible soft cable; Chinese patent CN201134299 potteryization silicon rubber insulation fire-resistant cable; Chinese patent CN201449778U fire-proof shield flexible cable; Chinese patent CN201477935U small bore type fire-resisting cable; The applicant presses fire-resisting cable or the like in first to file CN200710190369.3.Above-mentioned cable refractory insulating layer becomes the ceramic-like duricrust after burning; Owing to do not reach the sintering degree; Still therefore vibration that being unable to undergo catches fire sues and labours and trickle and mobile can not also only can be applicable to and fixedly lay occasion through the vibration fire resistance test; Still can not be used for moving occasion and use, and use during fire fighting.
The applicant formerly applies for a patent the CN200510041195.5 fire-resisting cable, between mica refractory insulating layer and embossing metallic sheath, sets up inorganic fire-resistant expanding layer, produce to expand through catching fire to hold mica tightly and reach and still can continue to use.But production process is many, and Costco Wholesale is high, and is difficult to use in mobile occasion.
The inapplicable basically mobile occasion of prior art fire-resisting cable is used, and has better bending property cable, in the process of suing and labouring of catching fire and the fire-resisting cable that still can normally use after catching fire.
Above-mentioned deficiency still has is worth improved place.
Summary of the invention
The object of the invention is to overcome the deficiency of above-mentioned prior art, provide a kind of can be used for moving occasion, fire resistance superior, and can reusable fire-resisting cable.
Another purpose of the present invention is to provide the fire-resisting cable of the satisfied back fire-fighting fire fighting of catching fire of a kind of ability.
The object of the invention realization, the main improvement is to adopt mica tape to add fire-resistant, the high basalt fibre wired tube that insulate of a floor height, forms the insulated fireproof layer that mica adds basalt fibre wired tube structure; Utilize the effect of holding tightly of high refractoriness of basalt fibre and wired tube, the fire-resistant mica that protection is inboard still can keep the intact insulated fireproof layer of structure after feasible the catching fire; Owing to the protective effect of holding tightly of wired tube, under normal circumstances can be used for moving occasion, the destruction that can't cause mica layer simultaneously; And preparation is simple; Cost is low, and it is not enough to overcome above-mentioned prior art, realizes the object of the invention.Specifically, fire-resisting cable of the present invention comprises conductor and outsourcing mica insulation flame retardant coating, it is characterized in that mica layer has the basalt fibre wired tube outward.
Among the present invention:
The mica layer gross thickness: similar with common fire-resisting cable, get final product more than 0.3mm from fire-resistant angle mica layer thickness, better for example 0.3-1.0mm can satisfy insulation and fire-resistant requirement, and dielectric voltage withstand is low, and mica layer is attenuate suitably.
The basalt fibre braid, main effect has three: one, plays and holds mica layer tightly, make mica layer under normal circumstances reach high-temp combustion (for example 950 ℃, 3h) after, can not come off; The 2nd, the auxiliary insulating effect that plays; The 3rd, this structure has high tensile strength, and can be used in mobile occasion.Test shows: wherein the wired tube count promptly has good protective effect more fortunately more than 60%, and wherein better count is more than 80%.The braiding basalt fibre, wherein filament diameter better adopts 0.1-0.3mm, crosses solid border and there is no need.
Conductor: can be for single, also can for many stranded, can also be the stranded soft junction structure conductor of thin monofilament.
The gained cable can be a single-core cable, and conductor+mica+basalt fibre braid, this structural cable are mainly used in single core poling cable; Also can be multicore cable, promptly form by aforementioned single-core cable is stranded; Can also be conductor+mica+basalt fibre braid+outer jacket, be used for often moving occasion.
In addition, for vibration resistance property and anti-spray property behind the raising ignition of cable, can also outside single core or stranding multicore cable, increase the protection metal pipe that fusing point is higher than fire resistance test temperature (for example 950 ℃).Protection metal pipe, a kind of better is to adopt to roll annular line structure is arranged, embossing copper pipe for example can improve the bending property of cable, is more suitable for moving occasion and uses.
Fire-resisting cable of the present invention is with respect to prior art, owing to adopt mica to add braiding basalt fibre layer basic insulation fireproof construction; Make insulation and fire-resistant unification; Mica and basalt fibre all can bear high temperature more than 950 ℃, and both are again the good insulation materials, thereby have superior insulation property and fire resistance simultaneously; Also improved the long-term work serviceability temperature greatly, the real work serviceability temperature can reach more than 950 ℃.The outer directly jacket of mica braiding basalt fibre layer, fixedly mica layer effect is played in the braid effect of directly holding tightly, not only cable through frequent mobile after; The mica insulation fireproof construction is stable, still have superior insulated fireproof performance, and cable has guaranteed still that behind high-temp combustion insulation layer structure is intact; Promptly keep to move, high temperature down and burning back insulated fireproof performance constant, keep primary characteristic, the particularly outer refractory metal sleeve pipe that increases again; Can stand vibratory impulse drenches with fire fighting water; Satisfy the back fire-fighting of the catching fire requirement of suing and labouring, ignition process or catch fire after, still can use.With respect to fire prevention and the good magnesia insulated fireproof cable of fire resistance, be soft junction structure cable, crooked easily, can be used for moving occasion, and can realize length production.Fire-resisting cable of the present invention, production efficiency is high, and manufacturing process is simple, need not to increase moulds of industrial equipment.All can keep good soft junction structure, insulated fireproof performance, and behind high-temp combustion, still can use before and after moving, burning, be the main distinction and advantage place that this fire-resisting cable is different from other fire-resisting cables.
Optimize specific embodiment below in conjunction with several; Essence of the present invention is further understood in exemplary illustration and help; But the embodiment detail only is in order the present invention to be described, not to represent the present invention to conceive whole technical schemes down, therefore should not be construed as the total technical scheme of the present invention to be limited; Some are In the view of the technical staff; The unsubstantiality that does not depart from the present invention's design increases and/or change, and for example simple the change or replacement of technical characterictic to have same or similar technique effect all belongs to protection range of the present invention.
Description of drawings
Fig. 1 is the first example structure sketch map.
Fig. 2 is the second example structure sketch map.
Fig. 3 is the 3rd example structure sketch map.
Fig. 4 is the 4th example structure sketch map.
Fig. 5 is the 5th example structure sketch map.
Embodiment
Embodiment 1: referring to Fig. 1; Fire-resistant single-core cable is put up wrapped 2 layers at the thick mica tape of stranded flexible conductor 1 external application 0.14mm and is constituted main insulation flame retardant coating 2, and silk footpath 0.2mm basalt fibre wired tube 3 is arranged outward; Count 80% weaves two layers (look insulation property and decide).
Embodiment 2: referring to Fig. 2, as aforementioned, braid has PVC sheath 4 outward.
Embodiment 3: referring to Fig. 3, like embodiment 1, braid is vertical outward to be surrounded by copper pipe 5, and roll on the surface has annular line.
Embodiment 5: referring to Fig. 5, adopt the stranded composition multicore cable of 1 three single-core lines of embodiment, twisted cable core has embossing copper pipe 5 and PVC sheath 4 outward successively, constitutes the multicore fire-resisting cable.
To those skilled in the art, under this patent design and specific embodiment enlightenment, some distortion that can directly derive or associate from this patent disclosure and general knowledge; Those of ordinary skills will recognize also can adopt additive method, or uses substituting of known technology in the prior art always, and the mutual various combination between characteristic; For example inner wire adopts single conductor, expands the change of cover and outer protection metal tube, the change of basalt fibre silk footpath, count, the number of plies; Or the like unsubstantiality change, can be employed equally, can both realize this patent representation function and effect; Launch for example no longer one by one to describe in detail, all belong to this patent protection range.
Claims (9)
1. fire-resisting cable comprises conductor and outsourcing mica insulation flame retardant coating, it is characterized in that mica layer has the basalt fibre wired tube outward.
2. according to the said fire-resisting cable of claim 1, it is characterized in that mica layer thickness 0.3-1.0mm.
3. according to the said fire-resisting cable of claim 1, it is characterized in that basalt fibre wired tube filament diameter 0.1-0.3mm.
4. according to the said fire-resisting cable of claim 1, it is characterized in that basalt fibre wired tube count >=60%.
5. according to the said fire-resisting cable of claim 4, it is characterized in that basalt fibre wired tube count >=80%.
6. according to the said fire-resisting cable of arbitrary claim in the claim 1 to 5, it is characterized in that wired tube has heatproof outward greater than 950 ℃ protection metal pipe.
7. according to the said fire-resisting cable of claim 6, it is characterized in that protection metal pipe is to roll the embossing of annular line pipe is arranged.
8. according to the said fire-resisting cable of claim 7, it is characterized in that metal embossing pipe has outer jacket outward.
9. according to the said fire-resisting cable of arbitrary claim in the claim 1 to 5, it is characterized in that the basalt fibre wired tube has outer jacket outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102513456A CN102376386A (en) | 2010-08-11 | 2010-08-11 | Fire-resisting cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102513456A CN102376386A (en) | 2010-08-11 | 2010-08-11 | Fire-resisting cable |
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| CN102376386A true CN102376386A (en) | 2012-03-14 |
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| CN2010102513456A Pending CN102376386A (en) | 2010-08-11 | 2010-08-11 | Fire-resisting cable |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751019A (en) * | 2012-06-14 | 2012-10-24 | 金杯电工衡阳电缆有限公司 | Frequency conversion cable with flexible metal sheath |
| CN104428845A (en) * | 2012-07-12 | 2015-03-18 | 泰科电子瑞侃有限责任公司 | Container for electric or optical conductor |
| CN104637619A (en) * | 2013-11-14 | 2015-05-20 | 成都捷康特科技有限公司 | Insect-proof cable |
| FR3015104A1 (en) * | 2013-12-13 | 2015-06-19 | Nexans | THERMAL PROTECTION ENVELOPE FOR PROTECTING CABLE AND / OR CABLE ACCESSORY |
| CN109545454A (en) * | 2018-11-12 | 2019-03-29 | 四川自胜机电设备有限责任公司 | A kind of wire and cable basalt fiber cloth fire resistant belt and preparation method thereof |
| CN111540538A (en) * | 2020-04-14 | 2020-08-14 | 远东电缆有限公司 | Large-section high-temperature-resistant mobile flexible cable for high-temperature equipment and preparation process thereof |
| CN112750563A (en) * | 2021-01-15 | 2021-05-04 | 焦作铁路电缆有限责任公司 | Flame-retardant fire-resistant wire and cable |
Citations (6)
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| CN2817005Y (en) * | 2005-07-23 | 2006-09-13 | 宝胜科技创新股份有限公司 | Inorganic insulation flexible fire-retardant cable |
| CN2864923Y (en) * | 2005-12-27 | 2007-01-31 | 江苏赛德电气有限公司 | Thermostable radiation proof wire for Tokamak |
| CN201036066Y (en) * | 2007-04-28 | 2008-03-12 | 深圳琦富瑞电子有限公司 | Mica lapped insulation glass fibre braiding sheath type high-temperature resistant special type electric wire |
| CN101236801A (en) * | 2007-12-16 | 2008-08-06 | 远东电缆有限公司 | Fireproof cable and its making method |
| CN101479413A (en) * | 2006-05-01 | 2009-07-08 | 费德罗-莫格尔公司 | Basalt continuous filament insulating and fire-resistant material and sleeves and methods of construction thereof |
| CN201812533U (en) * | 2010-08-11 | 2011-04-27 | 远东电缆有限公司 | Fire resistant cable |
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2010
- 2010-08-11 CN CN2010102513456A patent/CN102376386A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2817005Y (en) * | 2005-07-23 | 2006-09-13 | 宝胜科技创新股份有限公司 | Inorganic insulation flexible fire-retardant cable |
| CN2864923Y (en) * | 2005-12-27 | 2007-01-31 | 江苏赛德电气有限公司 | Thermostable radiation proof wire for Tokamak |
| CN101479413A (en) * | 2006-05-01 | 2009-07-08 | 费德罗-莫格尔公司 | Basalt continuous filament insulating and fire-resistant material and sleeves and methods of construction thereof |
| CN201036066Y (en) * | 2007-04-28 | 2008-03-12 | 深圳琦富瑞电子有限公司 | Mica lapped insulation glass fibre braiding sheath type high-temperature resistant special type electric wire |
| CN101236801A (en) * | 2007-12-16 | 2008-08-06 | 远东电缆有限公司 | Fireproof cable and its making method |
| CN201812533U (en) * | 2010-08-11 | 2011-04-27 | 远东电缆有限公司 | Fire resistant cable |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751019A (en) * | 2012-06-14 | 2012-10-24 | 金杯电工衡阳电缆有限公司 | Frequency conversion cable with flexible metal sheath |
| CN102751019B (en) * | 2012-06-14 | 2015-07-01 | 金杯电工衡阳电缆有限公司 | Frequency conversion cable with flexible metal sheath |
| CN104428845A (en) * | 2012-07-12 | 2015-03-18 | 泰科电子瑞侃有限责任公司 | Container for electric or optical conductor |
| CN104637619A (en) * | 2013-11-14 | 2015-05-20 | 成都捷康特科技有限公司 | Insect-proof cable |
| FR3015104A1 (en) * | 2013-12-13 | 2015-06-19 | Nexans | THERMAL PROTECTION ENVELOPE FOR PROTECTING CABLE AND / OR CABLE ACCESSORY |
| EP2892057A3 (en) * | 2013-12-13 | 2015-10-28 | Nexans | Thermal protection casing for protecting a cable and/or a cable accessory |
| CN109545454A (en) * | 2018-11-12 | 2019-03-29 | 四川自胜机电设备有限责任公司 | A kind of wire and cable basalt fiber cloth fire resistant belt and preparation method thereof |
| CN111540538A (en) * | 2020-04-14 | 2020-08-14 | 远东电缆有限公司 | Large-section high-temperature-resistant mobile flexible cable for high-temperature equipment and preparation process thereof |
| CN111540538B (en) * | 2020-04-14 | 2022-01-14 | 远东电缆有限公司 | Large-section high-temperature-resistant mobile flexible cable for high-temperature equipment and preparation process thereof |
| CN112750563A (en) * | 2021-01-15 | 2021-05-04 | 焦作铁路电缆有限责任公司 | Flame-retardant fire-resistant wire and cable |
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Application publication date: 20120314 |