CN105913956A - Irradiation-type flexible mineral substance insulation fireproof cable - Google Patents
Irradiation-type flexible mineral substance insulation fireproof cable Download PDFInfo
- Publication number
- CN105913956A CN105913956A CN201610406264.6A CN201610406264A CN105913956A CN 105913956 A CN105913956 A CN 105913956A CN 201610406264 A CN201610406264 A CN 201610406264A CN 105913956 A CN105913956 A CN 105913956A
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- China
- Prior art keywords
- irradiation
- type flexible
- flexible mineral
- fireproof
- insulated cable
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/006—Constructional features relating to the conductors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
- H01B7/0275—Disposition of insulation comprising one or more extruded layers of insulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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- Insulated Conductors (AREA)
Abstract
The invention discloses an irradiation-type flexible mineral substance insulation fireproof cable. The cable comprises a conductor, a fireproof wrapping tape layer, an irradiation insulating layer, a filling rope, a fireproof layer and an outer sheath. The cable is characterized in that the fireproof wrapping tape layer wraps an outer side of the conductor; an outer side of the fireproof wrapping tape layer is extruded with the irradiation insulating layer; a space formed by four wire cores is filled with a ceramic fireproof fire-resistant filling rope; the fireproof layer and the outer sheath surround outer sides of the four wire cores.
Description
Technical field
The invention belongs to field of cable technology, be specifically related to the mineral insulated cable of the irradiation type flexible structure of a kind of fire-resistant, fire prevention, explosion-proof, anticorrosion, environmental protection.
Background technology
Mineral insulated cable (Mineral Insulated Cable) is called for short MI cable.Rigidity and flexible two kinds can be divided at present by architectural characteristic.
Rigidity mineral insulated cable (BTTZ) is 19 imaginations that the end of the century, Switzerland engineer Arnold Francois Borel proposed, and in patented power in 1896,1934-1936 method, English developed quickly after putting into production.China also develops in the sixties in last century, starts for military field, and the mid-80 starts industrialized production, and is progressively accepted by building field comprehensively.
Relatively conventional rigidity mineral insulated cable, flexible mineral insulation cable (BBTRZ) is to be made up of copper stranded conductor, mineral compound insulation and mineral compound sheath.Its structural flexibility, main material all uses inorganic material, compensate for that structure is hard, easy firing, the defect such as poisonous, it also has some other cables and can not have the advantage that, such as: the features such as fire-resistant, current-carrying capacity big, the damage of impact resistance voltage, mechanical resistant, Halogen nontoxic, explosion-proof, waterproof, corrosion-resistant, life-span length, safety, resistant to overload, low cost.Because flexible mineral insulation cable (BBTRZ) work running temperature is 70 DEG C ~ 90 DEG C, do not reach 130 DEG C of requirements above, it is impossible to play high temperature resistant, fireproof function.
Needing a kind of high temperature resistant, corrosion-resistant, structurally flexible of exploitation, have fireproof irradiation type flexible mineral matter insulated cable, operating temperature more than 130 DEG C, and must require that cable has aging resistance, without prolonging the features such as nontoxic and corrosion resistance.
Summary of the invention
It is contemplated that overcome the defect of prior art, it is provided that a kind of irradiation type flexible mineral matter insulated cable, the service life of product being effectively ensured, mounting and installation is convenient, is entirely capable of meeting the properties requirement of low pressure fire proof power cable.
In order to solve above-mentioned technical problem, the present invention provides techniques below scheme:
A kind of irradiation type flexible mineral matter insulated cable, including conductor, wrapped belt of preventing fires, irradiation insulating barrier, gasket for packing, fireprotection layer, oversheath, it is characterized in that: the wrapped belt of parcel fire prevention outside conductor, prevent fires and be extruded with irradiation insulating barrier outside wrapped belt, using ceramic fireproof gasket for packing to fill in the space that four cores surround, surrounding outside four cores has fireprotection layer and oversheath.
Further, conductor 1 is stranded by many copper conductors or presses and forms.
Further, wrapped belt of preventing fires is fluorophologopite 2 and ceramic fireproof composite band 3 multiple-layer overlapped is wrapped forms.
Further, irradiation insulating barrier is that low smoke, zero halogen IXPE is made.
Further, fireprotection layer uses ceramic fireproof silicone rubber, is particularly preferred as ceramic fireproof oxygen barrier mud.
Further, oversheath uses ceramic low-smoke halogen-free polyolefin refractory matter to make.
Compared with prior art, the present invention has a following beneficial effect:
Product properties meets JG/T313-2014 " rated voltage 0.6/1KV and following metal sheath inorganic mineral insulation cable and terminal " standard and the BS 6387:2013 fire test method of circuit integrity " cable keep under the conditions of by fire " requirement, the service life of product is effectively ensured, mounting and installation is convenient, is entirely capable of meeting the properties requirement of low pressure fire proof power cable.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of irradiation type flexible mineral matter insulated cable of the present invention；
Figure is marked and is not represented true material object, only for distinguishing the construction of cable.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are illustrated, it will be appreciated that preferred embodiment described herein is merely to illustrate and explains the present invention, is not intended to limit the present invention.
As shown in Figure 1, a kind of irradiation type flexible mineral matter insulated cable, including conductor 1, wrapped belt of preventing fires, irradiation insulating barrier 4, gasket for packing 5, fireprotection layer 6, oversheath 7, being enclosed with the wrapped belt of fire prevention outside conductor 1, wrapped belt of preventing fires is fluorophologopite 2 and ceramic fireproof composite band 3 multiple-layer overlapped is wrapped forms.Preventing fires and be extruded with irradiation insulating barrier 4 outside wrapped belt, irradiation insulating barrier is that low smoke, zero halogen IXPE is made.Using ceramic fireproof gasket for packing 5 to fill in the space that four cores surround, be surrounded with fireprotection layer 6 and oversheath 7 outside four cores 1, fireprotection layer uses ceramic fireproof silicone rubber, is particularly preferred as ceramic fireproof oxygen barrier mud.Oversheath uses ceramic low-smoke halogen-free polyolefin refractory matter to make.
Above-mentioned conductor 1 is stranded by many copper conductors or presses and forms.Four core color masterbatch color separations, master core is red, yellow, and green color, and wire core is blue.
Process program
(1) 2 similar rounds that conductor uses GB/T 3956-2008 to require are stranded or press copper conductor, it is desirable to conductive surface should be bright and clean, and without greasy dirt, impulse-free robustness, the defect such as have no mechanical damage.
(2)Prevent fires wrapped beltFor fluorophologopite with ceramic fireproof composite band multiple-layer overlapped is wrapped forms, putting up rate 20% ~ 30%, multiple-layer overlapped is wrapped.Use fluorophologopite (by the ratio of fluorophologopite band fluorinated volume is adjusted so that temperature resistant grade is up to 1300 DEG C)+ceramic fireproof composite band multilamellar lapping structure of special formulation.Ceramic fireproof composite band is to be rolled by ceramic fireproof silicone rubber and temperature resistant glass fiber cloth to be composited; start hardening under the conditions of 650 DEG C and above flame or nonflame; reach as high as 3000 DEG C; along with temperature raises; rapidly by complete housing that Low fire ceramic shape is hard; the ablation time is the longest, temperature is the highest, housing is the hardest, and circuit is played a very good protection by the stiff shell armouring after burning, ensures circuit in case of fire unimpeded.
(3) core bakees operation, and temperature controls 95 DEG C ~ 100 DEG C, and duration 5h is prevented effectively from Muscovitum band and makes moist in atmosphere and have influence on insulation resistance.
(4) insulation extrusion: extruding 150 DEG C of low smoke and zero halogen IXPE Insulation Material outside the core dried, and use color masterbatch color separation, master core is red, yellow, and green color, wire core is blueness, it is desirable to smooth surface, without defects such as old glue, scratches.
(5) irradiation insulating barrier: 150 DEG C of low smoke and zero halogen IXPEs, has excellent mechanical performance and electrical property.Use and complete insulating barrier cross-linking radiation operation on AB-2.5MeV high frequency high voltage electron accelerator, high pressure 2.5MV, sweep away electric current 3.0A, indulge and sweep electric current 0.8A, using the lower winding displacement of big bundle, by adjusting corresponding speed tracking and monitoring, repeatedly comparing data shows, when corresponding speed is 25m/min, heat extends and aged properties can meet standard-required.
(6) stranding: direction is dextrad, is suitably filled with ceramic fireproof gasket for packing in the middle of cable core during stranding, periphery is not added with filling, without twining package tape.Ceramic fireproof gasket for packing, quickly forms stiff shell after burning at 650-3000 DEG C of temperature or flame condition, does not falls off, does not shrinks, does not melts, does not drips, do not result in spot fire after sintering.
(7) fireprotection layer extrusion: using ceramic fireproof silicone rubber (ceramic fireproof oxygen barrier mud) and dedicated extruded formula mould to extrude at Teh Extrusion Press for Extruding Silicone Rubber Products, expression surface should be smooth, without defects such as old glue, scratches.Ceramic fireproof silicone rubber has extraordinary fire prevention, cigarette fire-resistant, fire-retardant, low, nontoxic performance; residue after its burning is ceramic-like duricrust simultaneously; duricrust does not melts under fire (650～1300 DEG C) environment, does not drips; ensure that electric power under fire condition, communication are unimpeded, played firm protective effect.
(8) fireprotection layer is wrapped: when ceramic fireproof oxygen barrier mud is extruded, and increases longitudinal lapping machine at mould outlet end, and the cable core of extrusion directly carries out double-layer overlapping wrapped (ceramic fireproof composite band), puts up rate 10% ~ 20%.
(9) oversheath extrusion: use ceramic low-smoke halogen-free polyolefin as protective cover material, require finished cable rounding, smooth surface, without defects such as old glue, scratches during extrusion.Hard ceramic-like duricrust can be generated under flame calcination or hot conditions, duricrust does not melts, does not drips, and water resistant can spray, and has extraordinary heat insulation fire insulation effect, can ensure that electric power and information under fire condition control unimpeded, strive for valuable time for personnel escape and fire-fighting and rescue.
When the design of above structure guarantees low pressure flexible mineral insulation fire proof power cable by flame combustion, cable jacket generates hard ceramic-like duricrust, does not melts, does not drips, does not produce harmful gas, the most combustion-supporting；Fireprotection layer forms hard ceramic shape duricrust, and the highest housing of temperature is the hardest, protects internal wiring greatly；Irradiation insulating barrier has the ability stoping or delaying propagation of flame, and overload power is strong.Under the condition of high temperature, core is indeformable, non-foaming, is truly realized and guarantees that electric power is unobstructed in case of fire, tries to gain time precious to one for emergency staffs life and property to greatest extent.
Showing from following fire-resistant detection project, BBTRZF irradiation type flexible mineral insulation fireproof cable corresponds with JG/T 313-2014 " rated voltage 0.6/1KV and following metal sheath inorganic mineral insulation cable and terminal " and BS 6387:2013 " performance requirement of the cable of holding circuit integrity under Fire Conditions " standard on fire-resistance property.
The report of its specialized experimental examination is taken passages as follows:
。
Show from above fire-resistant detection project, produce BBTRZF irradiation type flexible mineral insulation fireproof cable on fire-resistance property, correspond with JG/T 313-2014 " rated voltage 0.6/1KV and following metal sheath inorganic mineral insulation cable and terminal " and BS 6387:2013 " performance requirement of the cable of holding circuit integrity under Fire Conditions " standard.Show that the design of this novel process is rational with the selection of material, it is entirely capable of meeting the properties requirement of low pressure fire proof power cable, by client being installed and used the tracking of situation, and the checking of every testing inspection, irradiation type flexible mineral insulation fireproof cable properties is excellent, mounting and installation is convenient, can meet customer need.
The foregoing is only explanation embodiments of the present invention; be not limited to the present invention, for a person skilled in the art, all within the spirit and principles in the present invention; the any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (6)
1. an irradiation type flexible mineral matter insulated cable, including conductor, wrapped belt of preventing fires, irradiation insulating barrier, gasket for packing, fireprotection layer, oversheath, it is characterized in that: the wrapped belt of parcel fire prevention outside conductor, prevent fires and be extruded with irradiation insulating barrier outside wrapped belt, using ceramic fireproof gasket for packing to fill in the space that four cores surround, surrounding outside four cores has fireprotection layer and oversheath.
Irradiation type flexible mineral matter insulated cable the most according to claim 1, it is characterised in that: conductor uses many copper conductors stranded or presses and forms.
Irradiation type flexible mineral matter insulated cable the most according to claim 1, it is characterised in that: wrapped belt of preventing fires is that fluorophlogopite belt and ceramic fireproof composite tape layers are overlapping wrapped to be formed.
Irradiation type flexible mineral matter insulated cable the most according to claim 1, it is characterised in that: irradiation insulating barrier is that low smoke, zero halogen IXPE is made.
Irradiation type flexible mineral matter insulated cable the most according to claim 1, it is characterised in that: fireprotection layer uses ceramic fireproof silicone rubber, is particularly preferred as ceramic fireproof oxygen barrier mud.
Irradiation type flexible mineral matter insulated cable the most according to claim 1, it is characterised in that: oversheath uses ceramic low-smoke halogen-free polyolefin refractory matter to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610406264.6A CN105913956A (en) | 2016-06-12 | 2016-06-12 | Irradiation-type flexible mineral substance insulation fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610406264.6A CN105913956A (en) | 2016-06-12 | 2016-06-12 | Irradiation-type flexible mineral substance insulation fireproof cable |
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| Publication Number | Publication Date |
|---|---|
| CN105913956A true CN105913956A (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610406264.6A Pending CN105913956A (en) | 2016-06-12 | 2016-06-12 | Irradiation-type flexible mineral substance insulation fireproof cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110993156A (en) * | 2019-10-11 | 2020-04-10 | 重庆泰山电缆有限公司 | Intelligent flexible fireproof and fire-resistant cable |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202887805U (en) * | 2012-10-10 | 2013-04-17 | 河南华泰特种电缆有限公司 | High temperature and corrosion resistant mineral compound insulated fireproof cable |
| CN103102134A (en) * | 2013-02-20 | 2013-05-15 | 上海宏胜电线电缆有限公司 | Fireproof and flame retardant mineral compound filling material and cable containing the same |
| CN202976935U (en) * | 2012-11-28 | 2013-06-05 | 上海起帆电线电缆有限公司 | Novel low-smoke non-halogen fire-resisting flexible cable |
| CN204102605U (en) * | 2014-09-03 | 2015-01-14 | 太仓苏晟电气技术科技有限公司 | A kind of insulated compound halogen-free flame-retardant wire cable |
-
2016
- 2016-06-12 CN CN201610406264.6A patent/CN105913956A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202887805U (en) * | 2012-10-10 | 2013-04-17 | 河南华泰特种电缆有限公司 | High temperature and corrosion resistant mineral compound insulated fireproof cable |
| CN202976935U (en) * | 2012-11-28 | 2013-06-05 | 上海起帆电线电缆有限公司 | Novel low-smoke non-halogen fire-resisting flexible cable |
| CN103102134A (en) * | 2013-02-20 | 2013-05-15 | 上海宏胜电线电缆有限公司 | Fireproof and flame retardant mineral compound filling material and cable containing the same |
| CN204102605U (en) * | 2014-09-03 | 2015-01-14 | 太仓苏晟电气技术科技有限公司 | A kind of insulated compound halogen-free flame-retardant wire cable |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110993156A (en) * | 2019-10-11 | 2020-04-10 | 重庆泰山电缆有限公司 | Intelligent flexible fireproof and fire-resistant cable |
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Application publication date: 20160831 |