CN204651023U - The halogen-free flameproof fireproof cable of modified node method - Google Patents
The halogen-free flameproof fireproof cable of modified node method Download PDFInfo
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- CN204651023U CN204651023U CN201520389726.9U CN201520389726U CN204651023U CN 204651023 U CN204651023 U CN 204651023U CN 201520389726 U CN201520389726 U CN 201520389726U CN 204651023 U CN204651023 U CN 204651023U
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Abstract
The utility model belongs to technical field of cables, relate to the halogen-free flameproof fireproof cable of modified node method, it be coated on the inner sheath of braid outside by many insulated wires, the aluminium-plastic tape enveloped by insulated wire, the braid be positioned at outside aluminium-plastic tape, extrusion molding, oversheath that the armour be coated on outside inner sheath, extrusion molding are coated on outside armour forms; Have a drainage heart yearn outside insulated wire, drainage heart yearn and insulated wire envelope by aluminium-plastic tape simultaneously; Many eradications edge linear diameter is equal and be mutual stranded rear placement; It is characterized in that the halogen-free flameproof layer that described every root insulated wire is coated on ceramic insulating barrier outside fireprotection layer by conductor, the voluble wrapping not conductive nonmetal fireprotection layer outside conductor, extrusion molding, extrusion molding is coated on outside ceramic insulating barrier is formed.The utility model has following main beneficial effect: cost is lower, easy to make, fire-retardant and fire protecting performance is better, be not easily short-circuited, more safe and reliable.
Description
Technical field
The utility model belongs to technical field of cables, especially relates to a kind of halogen-free flameproof fireproof cable of modified node method.
Background technology
Fire-retardant fireproof cable is generally laid in Along Railway, connection device and machine room.In prior art, the structure of typical fire-retardant fireproof cable as shown in Figure 1, it be coated on the polyethylene inner sheath 6 of braiding copper cash outside by the insulated wire of parallel or stranded placement, the aluminum-plastic composite membrane 4 enveloped by insulated wire, the braiding copper cash 5 be positioned at outside aluminum-plastic composite membrane, extrusion molding, the double-deck galvanized steel strip 7 be coated on outside polyethylene inner sheath, extrusion molding are coated on polyethylene outside double-deck galvanized steel strip or halogen-free and low-smoke flame-retardant polyolefin oversheath 8 is formed; Insulated wire is made up of copper conductor 1, the polyethylene layer 2 that envelopes copper conductor; Tinned wird 3 to be positioned at outside insulated wire and simultaneously coated by aluminum-plastic composite membrane institute with insulated wire.Thunder and lightning or forceful electric power power transfer ratio are easier to cause stray electrical current; And railway mostly is strong electric traction, thus stray electrical current is more, comparatively large, easily cause and catch fire, burn, therefore, partial cables needs to be designed to flame retardant type; In addition, when cable is in machine room, also need to adopt fire resistive construction.
In prior art, for the cable of transferring electric power, except employing LSOH anti-flaming sheath, also adopt and on conductor, be wound around mica tape do insulating barrier or adopt inorganic mineral to do insulating barrier; To signal of communication series products, mostly protect on sheath, general employing LSOH anti-flaming oversheath, for insulation, because the electric capacity of signal of communication class cable needs cable pair is less, therefore insulating material generally adopts polyethylene or polyethylene foamed.Because polyethylene heatproof is lower, once there is electric discharge burning, the high temperature of generation can melt polyethylene layer very soon, causes short circuit, causes major safety risks to driving.
Publication No. is CN103903772A, name is called: a kind of fire-retardant fireproof cable, be made up of insulated power core, proof copper-wire braided screen, steel-tape armouring layer and silicone rubber jacket, described insulated power core is from inside to outside extruded in successively on three tinned copper wire stranded conductors by aluminium-plastic tape lapping layer and pe sheath to form, three tinned copper wire stranded conductors are arranged on carbon nano-fiber inner core, and insulated power core internal clearance has been partially filled flame resistant filler rope; Fire-retardant fireproof lapping layer extrudes three eradication edge power wire core and becomes cable core; Flame-retardant packed layer is provided with in described cable core internal clearance; Described cable core is from inside to outside extruded with proof copper-wire braided screen, steel-tape armouring layer and silicone rubber jacket successively.Its multi-layer fireproofing Principle And Method of Flame Retardation Design also can not solve the problem.
Publication No. is CN203444840U, name is called: High-flame-retardancfireproof fireproof cable, sets gradually four floor height flame-retardant low-smoke halogen-free belting layers, copper strips and proof copper-wire braided double shield layer, thermostable fluorine plastics sheath and elastomer flame-retardant low-smoke halogen-free polyolefin sheath layer outside cable core; Cable core comprises four strand cores, and per share core comprises oxygen-free copper bundle strand conductor respectively, outside oxygen-free copper bundle strand conductor, set gradually four layers of refractory gold mica tape lapping layer and thermostable fluorine plastic insulating layer.It has fire-retardant and fireproof oxygen-separation physical property, and under the strong effect of outside burning things which may cause a fire disaster, cable surface can not prolong combustion, till the whole calcination charing of cable core peripheral material, the insulating barrier of cable conductor at all can not be sent out burnt because being heated, conductor still active load carries out work, but cost is quite high.
For this reason, applicant has carried out useful improvement to prior art, name is called: a kind of fireproof cable of new structure, Authorization Notice No. are the utility model patent of CN204102616U, disclose a kind of fireproof cable of new structure, it be coated on the inner sheath 6 of braid outside by two insulated wires, the aluminium-plastic tape 4 enveloped by insulated wire, the braid 5 be positioned at outside aluminium-plastic tape, extrusion molding, oversheath 8 that the armour 7 be coated on outside inner sheath, extrusion molding are coated on outside armour forms; It is characterized in that the ceramic insulating barrier 21 that described every root insulated wire is coated on outside polyethylene layer by conductor 1, the polyethylene layer 2 enveloping conductor, extrusion molding forms; Have a drainage heart yearn 3 outside insulated wire, drainage heart yearn and insulated wire envelope by aluminium-plastic tape simultaneously; Two insulated wires are a pair, are parallel placement or mutual stranded rear placement.It has following main beneficial effect: cost is lower, it is more convenient to make, Production Time is shorter, fire-retardant fireproof performance is better, be not easily short-circuited, cable control ability is stronger.But the cable of this structure is directly coated on outside conductor due to polyethylene layer, and during burning, after this polyethylene layer is burnt, the ghost that ceramic insulating barrier is formed is difficult to support conductor, and polyethylene layer is very fast for burning time.
Utility model content
In order to solve the problem, the purpose of this utility model discloses a kind of halogen-free flameproof fireproof cable of modified node method, and it realizes by the following technical solutions.
The halogen-free flameproof fireproof cable of modified node method, it be coated on the inner sheath of braid outside by many insulated wires, the aluminium-plastic tape enveloped by insulated wire, the braid be positioned at outside aluminium-plastic tape, extrusion molding, oversheath that the armour be coated on outside inner sheath, extrusion molding are coated on outside armour forms; Have a drainage heart yearn outside insulated wire, drainage heart yearn and insulated wire envelope by aluminium-plastic tape simultaneously; Many eradications edge linear diameter is equal and be mutual stranded rear placement; It is characterized in that the halogen-free flameproof layer that described every root insulated wire is coated on ceramic insulating barrier outside fireprotection layer by conductor, the voluble wrapping not conductive nonmetal fireprotection layer outside conductor, extrusion molding, extrusion molding is coated on outside ceramic insulating barrier is formed; The mutually stranded pitch of many insulated wires is 5 ~ 15 times of single insulated wire diameter; The thickness of fireprotection layer is 0.2 ~ 0.75mm, and the thickness of ceramic insulating barrier is 0.5 ~ 1.8mm, and the thickness of ceramic insulating barrier is more than 2 times of fireprotection layer thickness, and the thickness of halogen-free flameproof layer is 0.6 ~ 1.0mm.
The halogen-free flameproof fireproof cable of modified node method, it be coated on the inner sheath of braid outside by the insulated wire of more than three, the aluminium-plastic tape enveloped by insulated wire, the braid be positioned at outside aluminium-plastic tape, extrusion molding, oversheath that the armour be coated on outside inner sheath, extrusion molding are coated on outside armour forms; More than three insulated wire composition inner space there is a drainage heart yearn, drainage heart yearn and insulated wire envelope by aluminium-plastic tape simultaneously; The insulated wire equal diameters of more than three and be mutual stranded rear placement; It is characterized in that the halogen-free flameproof layer that described every root insulated wire is coated on ceramic insulating barrier outside fireprotection layer by conductor 1, the voluble wrapping not conductive nonmetal fireprotection layer outside conductor, extrusion molding, extrusion molding is coated on outside ceramic insulating barrier is formed; The mutually stranded pitch of more than three insulated wires is 5 ~ 15 times of single insulated wire diameter; The thickness of fireprotection layer is 0.2 ~ 0.75mm, and the thickness of ceramic insulating barrier is 0.5 ~ 1.8mm, and the thickness of ceramic insulating barrier is more than 2 times of fireprotection layer thickness, and the thickness of halogen-free flameproof layer is 0.6 ~ 1.0mm.
The halogen-free flameproof fireproof cable of modified node method described above, is characterized in that the sectional area of described conductor is 1 ~ 10mm
2.
The halogen-free flameproof fireproof cable of modified node method described above, it is characterized in that described aluminium-plastic tape is one side film, the thickness of aluminium-plastic tape is 0.10 ~ 0.25mm, aluminium-plastic tape is longitudinally coated on drainage heart yearn and insulated wire outside, and aluminium-plastic tape mould face and braid is affixed; In lap-joint, the aluminium strip of aluminium-plastic tape welds mutually or welding is lived.
The halogen-free flameproof fireproof cable of modified node method described above, is characterized in that described braid is that 0.1 ~ 0.15mm copper wire woven forms by diameter, and braiding copper cash is the copper cash that bare copper wire or outside have tin coating, and count is 60% ~ 85%.
The halogen-free flameproof fireproof cable of modified node method described above, it is characterized in that described drainage heart yearn forms by 7 tinned copper wires are stranded, the diameter of intertwist body is 0.15 ~ 0.30mm; Or described drainage heart yearn forms by 7 zinc-plated aluminium wires are stranded, and the diameter of intertwist body is 0.25 ~ 0.50mm.
The halogen-free flameproof fireproof cable of modified node method described above, is characterized in that the material of described inner sheath is LSOH anti-flaming polyethylene, and the thickness of inner sheath is 0.7 ~ 1.2mm.
The halogen-free flameproof fireproof cable of modified node method described above, is characterized in that described armour is two-sided aluminum-plated steel strip; Aluminum-plated steel strip thickness is 0.1 ~ 0.5mm; Aluminum-plated steel strip is that spiral winding handbag overlays on outside inner sheath; There is between adjacent aluminum-plated steel strip overlapping overlap joint.
The halogen-free flameproof fireproof cable of modified node method described above, is characterized in that the material of described oversheath is LSOH anti-flaming polyethylene; Oversheath thickness is 1.4 ~ 2.0mm.
The halogen-free flameproof fireproof cable of modified node method described above, it is characterized in that the material of described ceramic insulating barrier can adopt commercially available prod, also can adopt notification number to be: CN103865166A, name are called: low smoke and zero halogen ceramic cable material of polyolefin and preparation method thereof; Or publication No.: CN103928157A, name are called: thermoplasticity ceramic low-smoke halogen-free polyolefin low-voltage insulation fire-resisting cable; Ceramic CABLE MATERIALS in two patents, these two patents are products that applicant researches and develops.
The halogen-free flameproof fireproof cable of modified node method described above, the material of not conductive nonmetal fireprotection layer described in it is characterized in that is glass fiber or fiberglass reinforced plastics band or aramid fiber yarn or mica tape or asbestos.
The halogen-free flameproof fireproof cable of modified node method described above, is characterized in that the material of described halogen-free flameproof layer is low-smoke non-halogen flame-retardant polyethylene or Halogen elastomer.
Therefore, the utility model has following main beneficial effect: cost is lower, easy to make, fire-retardant and fire protecting performance is better, be not easily short-circuited, more safe and reliable.
Accompanying drawing explanation
Fig. 1 is the cross-sectional structure schematic diagram of prior art.
Fig. 2 is the cross-sectional structure schematic diagram of the utility model embodiment 1.
Fig. 3 is the cross-sectional structure schematic diagram of the utility model embodiment 2.
Fig. 4 is the cross-sectional structure schematic diagram of the utility model embodiment 3.
Fig. 5 is the cross-sectional structure schematic diagram of the utility model embodiment 4.
Fig. 6 is the cross-sectional structure schematic diagram of the utility model embodiment 5.
Embodiment
embodiment 1
Ask for an interview Fig. 2, the halogen-free flameproof fireproof cable of modified node method, it be coated on the inner sheath 8 of braid outside by two insulated wires, the aluminium-plastic tape 6 enveloped by insulated wire, the braid 7 be positioned at outside aluminium-plastic tape, extrusion molding, oversheath 10 that the armour 9 be coated on outside inner sheath, extrusion molding are coated on outside armour forms; Have a drainage heart yearn 5 outside insulated wire, drainage heart yearn and insulated wire envelope by aluminium-plastic tape simultaneously; Two to thoroughly do away with edge linear diameters equal and be mutual stranded rear placement; It is characterized in that the halogen-free flameproof layer 4 that described every root insulated wire is coated on ceramic insulating barrier 3 outside fireprotection layer by conductor 1, the voluble wrapping not conductive nonmetal fireprotection layer 2 outside conductor, extrusion molding, extrusion molding is coated on outside ceramic insulating barrier is formed; The mutually stranded pitch of two insulated wires is 5 ~ 15 times of single insulated wire diameter; The thickness of fireprotection layer is 0.2 ~ 0.75mm, and the thickness of ceramic insulating barrier is 0.5 ~ 1.8mm, and the thickness of ceramic insulating barrier is more than 2 times of fireprotection layer thickness, and the thickness of halogen-free flameproof layer is 0.6 ~ 1.0mm.
embodiment 2
Ask for an interview Fig. 3, the halogen-free flameproof fireproof cable of modified node method, it be coated on the inner sheath 8 of braid outside by three insulated wires, the aluminium-plastic tape 6 enveloped by insulated wire, the braid 7 be positioned at outside aluminium-plastic tape, extrusion molding, oversheath 10 that the armour 9 be coated on outside inner sheath, extrusion molding are coated on outside armour forms; Have a drainage heart yearn 5 outside insulated wire, drainage heart yearn and insulated wire envelope by aluminium-plastic tape simultaneously; Three to thoroughly do away with edge linear diameters equal and be mutual stranded rear placement; It is characterized in that the halogen-free flameproof layer 4 that described every root insulated wire is coated on ceramic insulating barrier 3 outside fireprotection layer by conductor 1, the voluble wrapping not conductive nonmetal fireprotection layer 2 outside conductor, extrusion molding, extrusion molding is coated on outside ceramic insulating barrier is formed; The mutually stranded pitch of three insulated wires is 5 ~ 15 times of single insulated wire diameter; The thickness of fireprotection layer is 0.2 ~ 0.75mm, and the thickness of ceramic insulating barrier is 0.5 ~ 1.8mm, and the thickness of ceramic insulating barrier is more than 2 times of fireprotection layer thickness, and the thickness of halogen-free flameproof layer is 0.6 ~ 1.0mm.
embodiment 3
Ask for an interview Fig. 4, the halogen-free flameproof fireproof cable of modified node method, it be coated on the inner sheath 8 of braid outside by three insulated wires, the aluminium-plastic tape 6 enveloped by insulated wire, the braid 7 be positioned at outside aluminium-plastic tape, extrusion molding, oversheath 10 that the armour 9 be coated on outside inner sheath, extrusion molding are coated on outside armour forms; The inner space of three insulated wire compositions has a drainage heart yearn 5, and drainage heart yearn and insulated wire envelope by aluminium-plastic tape simultaneously; Three to thoroughly do away with edge linear diameters equal and be mutual stranded rear placement; It is characterized in that the halogen-free flameproof layer 4 that described every root insulated wire is coated on ceramic insulating barrier 3 outside fireprotection layer by conductor 1, the voluble wrapping not conductive nonmetal fireprotection layer 2 outside conductor, extrusion molding, extrusion molding is coated on outside ceramic insulating barrier is formed; The mutually stranded pitch of three insulated wires is 5 ~ 15 times of single insulated wire diameter; The thickness of fireprotection layer is 0.2 ~ 0.75mm, and the thickness of ceramic insulating barrier is 0.5 ~ 1.8mm, and the thickness of ceramic insulating barrier is more than 2 times of fireprotection layer thickness, and the thickness of halogen-free flameproof layer is 0.6 ~ 1.0mm.
embodiment 5
Ask for an interview Fig. 5, the halogen-free flameproof fireproof cable of modified node method, it be coated on the inner sheath 8 of braid outside by four insulated wires, the aluminium-plastic tape 6 enveloped by insulated wire, the braid 7 be positioned at outside aluminium-plastic tape, extrusion molding, oversheath 10 that the armour 9 be coated on outside inner sheath, extrusion molding are coated on outside armour forms; Have a drainage heart yearn 5 outside insulated wire, drainage heart yearn and insulated wire envelope by aluminium-plastic tape simultaneously; Four to thoroughly do away with edge linear diameters equal and be mutual stranded rear placement; It is characterized in that the halogen-free flameproof layer 4 that described every root insulated wire is coated on ceramic insulating barrier 3 outside fireprotection layer by conductor 1, the voluble wrapping not conductive nonmetal fireprotection layer 2 outside conductor, extrusion molding, extrusion molding is coated on outside ceramic insulating barrier is formed; The mutually stranded pitch of four insulated wires is 5 ~ 15 times of single insulated wire diameter; The thickness of fireprotection layer is 0.2 ~ 0.75mm, and the thickness of ceramic insulating barrier is 0.5 ~ 1.8mm, and the thickness of ceramic insulating barrier is more than 2 times of fireprotection layer thickness, and the thickness of halogen-free flameproof layer is 0.6 ~ 1.0mm.
embodiment 6
Ask for an interview Fig. 5, the halogen-free flameproof fireproof cable of modified node method, it be coated on the inner sheath 8 of braid outside by four insulated wires, the aluminium-plastic tape 6 enveloped by insulated wire, the braid 7 be positioned at outside aluminium-plastic tape, extrusion molding, oversheath 10 that the armour 9 be coated on outside inner sheath, extrusion molding are coated on outside armour forms; The inner space of four insulated wire compositions has a drainage heart yearn 5, and drainage heart yearn and insulated wire envelope by aluminium-plastic tape simultaneously; Four to thoroughly do away with edge linear diameters equal and be mutual stranded rear placement; It is characterized in that the halogen-free flameproof layer 4 that described every root insulated wire is coated on ceramic insulating barrier 3 outside fireprotection layer by conductor 1, the voluble wrapping not conductive nonmetal fireprotection layer 2 outside conductor, extrusion molding, extrusion molding is coated on outside ceramic insulating barrier is formed; The mutually stranded pitch of four insulated wires is 5 ~ 15 times of single insulated wire diameter; The thickness of fireprotection layer is 0.2 ~ 0.75mm, and the thickness of ceramic insulating barrier is 0.5 ~ 1.8mm, and the thickness of ceramic insulating barrier is more than 2 times of fireprotection layer thickness, and the thickness of halogen-free flameproof layer is 0.6 ~ 1.0mm.
The halogen-free flameproof fireproof cable of the modified node method described in above-mentioned arbitrary embodiment, is characterized in that the sectional area of described conductor is 1 ~ 10mm
2.
The halogen-free flameproof fireproof cable of the modified node method described in above-mentioned arbitrary embodiment, it is characterized in that described aluminium-plastic tape is one side film, the thickness of aluminium-plastic tape is 0.10 ~ 0.25mm, aluminium-plastic tape is longitudinally coated on drainage heart yearn and insulated wire outside, and aluminium-plastic tape mould face and braid is affixed; In lap-joint, the aluminium strip of aluminium-plastic tape welds mutually or welding is lived.
The halogen-free flameproof fireproof cable of the modified node method described in above-mentioned arbitrary embodiment, it is characterized in that described braid is that 0.1 ~ 0.15mm copper wire woven forms by diameter, braiding copper cash is the copper cash that bare copper wire or outside have tin coating, and count is 60% ~ 85%.
The halogen-free flameproof fireproof cable of the modified node method described in above-mentioned arbitrary embodiment, it is characterized in that described drainage heart yearn forms by 7 tinned copper wires are stranded, the diameter of intertwist body is 0.15 ~ 0.30mm; Or described drainage heart yearn forms by 7 zinc-plated aluminium wires are stranded, and the diameter of intertwist body is 0.25 ~ 0.50mm.
The halogen-free flameproof fireproof cable of the modified node method described in above-mentioned arbitrary embodiment, is characterized in that the material of described inner sheath is LSOH anti-flaming polyethylene, and the thickness of inner sheath is 0.7 ~ 1.2mm.
The halogen-free flameproof fireproof cable of the modified node method described in above-mentioned arbitrary embodiment, is characterized in that described armour is two-sided aluminum-plated steel strip; Aluminum-plated steel strip thickness is 0.1 ~ 0.5mm; Aluminum-plated steel strip is that spiral winding handbag overlays on outside inner sheath; There is between adjacent aluminum-plated steel strip overlapping overlap joint.
The halogen-free flameproof fireproof cable of the modified node method described in above-mentioned arbitrary embodiment, is characterized in that the material of described oversheath is LSOH anti-flaming polyethylene; Oversheath thickness is 1.4 ~ 2.0mm.
The halogen-free flameproof fireproof cable of the modified node method described in above-mentioned arbitrary embodiment, it is characterized in that the material of described ceramic insulating barrier can adopt commercially available prod, also can adopt notification number to be: CN103865166A, name are called: low smoke and zero halogen ceramic cable material of polyolefin and preparation method thereof; Or publication No.: CN103928157A, name are called: thermoplasticity ceramic low-smoke halogen-free polyolefin low-voltage insulation fire-resisting cable; Ceramic CABLE MATERIALS in two patents, these two patents are products that applicant researches and develops.
The halogen-free flameproof fireproof cable of the modified node method described in above-mentioned arbitrary embodiment, the material of not conductive nonmetal fireprotection layer described in it is characterized in that is glass fiber or fiberglass reinforced plastics band or aramid fiber yarn or mica tape or asbestos.
The halogen-free flameproof fireproof cable of the modified node method described in above-mentioned arbitrary embodiment, is characterized in that the material of described halogen-free flameproof layer is low-smoke non-halogen flame-retardant polyethylene or Halogen elastomer.
The halogen-free flameproof fireproof cable of the modified node method described in the utility model, it be coated on the inner sheath of braid outside by many insulated wires, the aluminium-plastic tape enveloped by insulated wire, the braid be positioned at outside aluminium-plastic tape, extrusion molding, oversheath that the armour be coated on outside inner sheath, extrusion molding are coated on outside armour forms; Have a drainage heart yearn outside insulated wire, drainage heart yearn and insulated wire envelope by aluminium-plastic tape simultaneously; Many eradications edge linear diameter is equal and be mutual stranded rear placement; It is characterized in that the halogen-free flameproof layer that described every root insulated wire is coated on ceramic insulating barrier outside fireprotection layer by conductor, the voluble wrapping not conductive nonmetal fireprotection layer outside conductor, extrusion molding, extrusion molding is coated on outside ceramic insulating barrier is formed; The mutually stranded pitch of many insulated wires is 5 ~ 15 times of single insulated wire diameter; The thickness of fireprotection layer is 0.2 ~ 0.75mm, and the thickness of ceramic insulating barrier is 0.5 ~ 1.8mm, and the thickness of ceramic insulating barrier is more than 2 times of fireprotection layer thickness, and the thickness of halogen-free flameproof layer is 0.6 ~ 1.0mm.
Or, the halogen-free flameproof fireproof cable of the modified node method described in the utility model, it be coated on the inner sheath of braid outside by the insulated wire of more than three, the aluminium-plastic tape enveloped by insulated wire, the braid be positioned at outside aluminium-plastic tape, extrusion molding, oversheath that the armour be coated on outside inner sheath, extrusion molding are coated on outside armour forms; More than three insulated wire composition inner space there is a drainage heart yearn, drainage heart yearn and insulated wire envelope by aluminium-plastic tape simultaneously; The insulated wire equal diameters of more than three and be mutual stranded rear placement; It is characterized in that the halogen-free flameproof layer that described every root insulated wire is coated on ceramic insulating barrier outside fireprotection layer by conductor 1, the voluble wrapping not conductive nonmetal fireprotection layer outside conductor, extrusion molding, extrusion molding is coated on outside ceramic insulating barrier is formed; The mutually stranded pitch of more than three insulated wires is 5 ~ 15 times of single insulated wire diameter; The thickness of fireprotection layer is 0.2 ~ 0.75mm, and the thickness of ceramic insulating barrier is 0.5 ~ 1.8mm, and the thickness of ceramic insulating barrier is more than 2 times of fireprotection layer thickness, and the thickness of halogen-free flameproof layer is 0.6 ~ 1.0mm.
The utility model and immediate prior art, namely the fireproof cable shown in Fig. 1 is compared, mainly do following improvement: (1) insulated wire is improved to four parts by three parts, by original conductor, polyethylene layer, ceramic insulating barrier, change to: conductor, fireprotection layer, ceramic insulating barrier, halogen-free flameproof layer; Above-mentioned improvement makes cable after combustion, and fireprotection layer not easily burns, even if through burning, can not burn conductor, conductor still can take out and recycle, and can not affect the quality of conductor; Ceramic insulating barrier is closer to conductor, and the protection for conductor is better, and the ghost that burning is formed is more broken compared to existing technology; It is longer that halogen-free flameproof layer makes insulated wire can bear time of burning; Even if after ceramic insulating barrier is boiled, many conductors also can not be collided formation short circuit; (2) inner sheath, jacket material adopt bittern-free flame-proof material, and the fire resistance for cable improves further; (3) aluminium-plastic tape lap-joint adopts the mode of welding or welding, and when making burning, aluminium-plastic tape internal structure is more nonflammable, must burn aluminium-plastic tape and could fire to inner.Therefore, the utility model has longer fire prevention, fire resistance, and refractory ability is stronger.
Therefore, the utility model has following main beneficial effect: cost is lower, easy to make, fire-retardant and fire protecting performance is better, be not easily short-circuited, more safe and reliable.
The utility model is not limited to above-mentioned preferred forms, and should be appreciated that design of the present utility model can be implemented to use by other various forms, they drop in protection range of the present utility model equally.
Claims (10)
1. the halogen-free flameproof fireproof cable of modified node method, it be coated on the inner sheath of braid outside by many insulated wires, the aluminium-plastic tape enveloped by insulated wire, the braid be positioned at outside aluminium-plastic tape, extrusion molding, oversheath that the armour be coated on outside inner sheath, extrusion molding are coated on outside armour forms; Have a drainage heart yearn outside insulated wire, drainage heart yearn and insulated wire envelope by aluminium-plastic tape simultaneously; Many eradications edge linear diameter is equal and be mutual stranded rear placement; It is characterized in that the halogen-free flameproof layer that described every root insulated wire is coated on ceramic insulating barrier outside fireprotection layer by conductor, the voluble wrapping not conductive nonmetal fireprotection layer outside conductor, extrusion molding, extrusion molding is coated on outside ceramic insulating barrier is formed; The mutually stranded pitch of many insulated wires is 5 ~ 15 times of single insulated wire diameter; The thickness of fireprotection layer is 0.2 ~ 0.75mm, and the thickness of ceramic insulating barrier is 0.5 ~ 1.8mm, and the thickness of ceramic insulating barrier is more than 2 times of fireprotection layer thickness, and the thickness of halogen-free flameproof layer is 0.6 ~ 1.0mm.
2. the halogen-free flameproof fireproof cable of modified node method, it be coated on the inner sheath of braid outside by the insulated wire of more than three, the aluminium-plastic tape enveloped by insulated wire, the braid be positioned at outside aluminium-plastic tape, extrusion molding, oversheath that the armour be coated on outside inner sheath, extrusion molding are coated on outside armour forms; More than three insulated wire composition inner space there is a drainage heart yearn, drainage heart yearn and insulated wire envelope by aluminium-plastic tape simultaneously; The insulated wire equal diameters of more than three and be mutual stranded rear placement; It is characterized in that the halogen-free flameproof layer that described every root insulated wire is coated on ceramic insulating barrier outside fireprotection layer by conductor 1, the voluble wrapping not conductive nonmetal fireprotection layer outside conductor, extrusion molding, extrusion molding is coated on outside ceramic insulating barrier is formed; The mutually stranded pitch of more than three insulated wires is 5 ~ 15 times of single insulated wire diameter; The thickness of fireprotection layer is 0.2 ~ 0.75mm, and the thickness of ceramic insulating barrier is 0.5 ~ 1.8mm, and the thickness of ceramic insulating barrier is more than 2 times of fireprotection layer thickness, and the thickness of halogen-free flameproof layer is 0.6 ~ 1.0mm.
3., according to the halogen-free flameproof fireproof cable of modified node method according to claim 1 or claim 2, it is characterized in that the sectional area of described conductor is 1 ~ 10mm
2.
4. the halogen-free flameproof fireproof cable of modified node method according to claim 3, it is characterized in that described aluminium-plastic tape is one side film, the thickness of aluminium-plastic tape is 0.10 ~ 0.25mm, aluminium-plastic tape is longitudinally coated on drainage heart yearn and insulated wire outside, and aluminium-plastic tape mould face and braid is affixed; In lap-joint, the aluminium strip of aluminium-plastic tape welds mutually or welding is lived.
5. the halogen-free flameproof fireproof cable of modified node method according to claim 4, is characterized in that described braid is that 0.1 ~ 0.15mm copper wire woven forms by diameter, and braiding copper cash is the copper cash that bare copper wire or outside have tin coating, and count is 60% ~ 85%.
6. the halogen-free flameproof fireproof cable of modified node method according to claim 5, it is characterized in that described drainage heart yearn forms by 7 tinned copper wires are stranded, the diameter of intertwist body is 0.15 ~ 0.30mm; Or described drainage heart yearn forms by 7 zinc-plated aluminium wires are stranded, and the diameter of intertwist body is 0.25 ~ 0.50mm.
7. the halogen-free flameproof fireproof cable of modified node method according to claim 6, is characterized in that the material of described inner sheath is LSOH anti-flaming polyethylene, and the thickness of inner sheath is 0.7 ~ 1.2mm.
8. the halogen-free flameproof fireproof cable of modified node method according to claim 7, is characterized in that described armour is two-sided aluminum-plated steel strip; Aluminum-plated steel strip thickness is 0.1 ~ 0.5mm; Aluminum-plated steel strip is that spiral winding handbag overlays on outside inner sheath; There is between adjacent aluminum-plated steel strip overlapping overlap joint.
9. the halogen-free flameproof fireproof cable of modified node method according to claim 8, is characterized in that the material of described oversheath is LSOH anti-flaming polyethylene; Oversheath thickness is 1.4 ~ 2.0mm.
10. the halogen-free flameproof fireproof cable of modified node method according to claim 9, the material of not conductive nonmetal fireprotection layer described in it is characterized in that is glass fiber or fiberglass reinforced plastics band or aramid fiber yarn or mica tape or asbestos; The material of described halogen-free flameproof layer is low-smoke non-halogen flame-retardant polyethylene or Halogen elastomer.
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| CN201520389726.9U CN204651023U (en) | 2015-06-09 | 2015-06-09 | The halogen-free flameproof fireproof cable of modified node method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109637731A (en) * | 2018-12-25 | 2019-04-16 | 新沂博瑞工业设计有限公司 | A kind of flame retardant cable |
| CN112151214A (en) * | 2020-09-29 | 2020-12-29 | 广东天虹电缆有限公司 | Fireproof flame-retardant cable with inner sheath |
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2015
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109637731A (en) * | 2018-12-25 | 2019-04-16 | 新沂博瑞工业设计有限公司 | A kind of flame retardant cable |
| CN109637731B (en) * | 2018-12-25 | 2020-08-11 | 哈尔滨交联电力电缆制造有限公司 | Flame-retardant cable |
| CN112151214A (en) * | 2020-09-29 | 2020-12-29 | 广东天虹电缆有限公司 | Fireproof flame-retardant cable with inner sheath |
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Address after: 215542 Jiangsu city of Suzhou province Changshou City Shajiabang town southeast of Changshu Development Zone, No. 8 Chang kunlu Patentee after: Jiangsu Zhongli group Limited by Share Ltd Address before: 215542 Jiangsu city of Suzhou province Changshou City Shajiabang town southeast of Changshu Development Zone, No. 8 Chang kunlu Patentee before: Zhongli Science & Technology Group Co., Ltd. |