CN108520801A - A kind of skyscraper pressure crane cable and preparation method thereof in oxygen barrier cooling fire resisting - Google Patents
A kind of skyscraper pressure crane cable and preparation method thereof in oxygen barrier cooling fire resisting Download PDFInfo
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- CN108520801A CN108520801A CN201810404075.4A CN201810404075A CN108520801A CN 108520801 A CN108520801 A CN 108520801A CN 201810404075 A CN201810404075 A CN 201810404075A CN 108520801 A CN108520801 A CN 108520801A
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- polyolefin
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 42
- 239000001301 oxygen Substances 0.000 title claims abstract description 42
- 230000004888 barrier function Effects 0.000 title claims abstract description 36
- 238000001816 cooling Methods 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 239000010410 layer Substances 0.000 claims abstract description 68
- 229920000098 polyolefin Polymers 0.000 claims abstract description 44
- 235000019504 cigarettes Nutrition 0.000 claims abstract description 26
- 239000003365 glass fiber Substances 0.000 claims abstract description 18
- 239000000779 smoke Substances 0.000 claims abstract description 18
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 16
- 150000002367 halogens Chemical class 0.000 claims abstract description 16
- 230000005855 radiation Effects 0.000 claims abstract description 13
- 239000000919 ceramic Substances 0.000 claims abstract description 10
- 238000012856 packing Methods 0.000 claims abstract description 10
- 238000011049 filling Methods 0.000 claims abstract description 5
- 239000011247 coating layer Substances 0.000 claims abstract description 4
- 230000008029 eradication Effects 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims abstract description 3
- 238000009413 insulation Methods 0.000 claims description 45
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 32
- 239000004020 conductor Substances 0.000 claims description 30
- 229910052802 copper Inorganic materials 0.000 claims description 26
- 239000010949 copper Substances 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 13
- 239000003063 flame retardant Substances 0.000 claims description 12
- 238000012946 outsourcing Methods 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 6
- 239000002356 single layer Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 5
- 229910021389 graphene Inorganic materials 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000000137 annealing Methods 0.000 claims description 3
- 238000009749 continuous casting Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- -1 using extrusion die Substances 0.000 claims description 3
- 238000005491 wire drawing Methods 0.000 claims description 3
- 150000001336 alkenes Chemical class 0.000 claims description 2
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000009970 fire resistant effect Effects 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
-
- 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
-
- 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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
-
- 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
-
- 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
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
Abstract
The invention discloses a kind of skyscrapers with pressing crane cable and preparation method thereof, including cable core, the cable core to be formed by three eradication edge cable twists in oxygen barrier cooling fire resisting, and the gap filling section of the cable core is in cambered-surface fan-shaped packing；The low cigarette polyolefin band of high-strength halogen-free is bundled outside cable core and is tightened, and the double-deck modified form glass fibre belt that wrapped thickness is 0.6mm outside the low cigarette polyolefin band of the high-strength halogen-free, which cools down, layer and extrudes low smoke, zero halogen polyolefin oxygen barrier；Ceramic polyolefin outer jacket and coated with nano heat loss through radiation High tailored coating layer are extruded with outside the low smoke, zero halogen polyolefin oxygen barrier；Structure of the invention stabilization, compact, Halogen, low cigarette, radiating and cooling are fast, it is provided simultaneously with the midium voltage cable of long length Lifting Capacity and refractory ability, high-rise building power supply can be continued as when fire occurs, especially for fire-fighting equipment, emergency service and safety device provide power conveying.
Description
Technical field
The power cable in rated voltage 6-35kV medium-voltage power-transmissions more particularly to a kind of tool the present invention relates to one kind
There is skyscraper pressure crane cable and preparation method thereof in oxygen barrier cooling fire resisting.
Background technology
With the development of modern science and technology, building height is more and more high, builds speed and is getting faster.As skyscraper
Auxiliary facility cable industry it also obtained fast development.The non-skyscraper for being same as early stage of the skyscraper of today, height, moulding,
Material, structure, function have great change and progress, fire prevention, the complexity and difficulties put out a fire all to increase therewith.It is built in high level
While building quantity and increase sharply, the fire of skyscraper also increases therewith.How to accomplish in the event of a fire in a high-rise building, to continue
For high-rise building power supply, especially for fire-fighting equipment, emergency service and safety device provide power conveying, reduce casualties and
The loss of lives and properties is the project that people constantly probe into.
Often rescue work is caused to be obstructed because cable fire poor flame retardant properties cause supply of electric power to be interrupted in a fire.
The flame-retardant poor performance of cable itself leads to flue gas light transmittance too low and discharges toxic gas to exacerbate the condition of a disaster, ultimately causes
Huge personnel, property loss.
The development of domestic fire resisting lifting midium voltage cable is started late, and the technical equipment test level of each producer is irregular not
Together, in addition the tight demand of fire-resisting cable is pressed in client's centering in recent years, and it is higher and higher to the requirement of the technology of cable, cause many
Producer cannot design since technical force is limited, produce the middle pressure fireproof power cable production for meeting the requirement of skyscraper technology
Product.
Invention content
Goal of the invention：The purpose of the invention is to overcome the deficiencies of the prior art and provide a kind of skyscraper with oxygen barrier
Crane cable is pressed in cooling fire resisting, stable structure, compact, bearing capacity is strong, substantially increases the tensile strength of cable entirety,
Has long length Lifting Capacity, it is ensured that cable is safely and effectively run, and enhances cable fire-proof performance.
The present invention also provides a kind of skyscraper preparation methods that crane cable is pressed in oxygen barrier cooling fire resisting.
Technical solution：In order to solve above-mentioned purpose, a kind of skyscraper of the present invention is pressed in oxygen barrier cooling fire resisting
Crane cable, including cable core, the cable core are formed by three eradication edge cable twists, and the gap filling section of the cable core is in
Cambered-surface fan-shaped packing；The low cigarette polyolefin band of high-strength halogen-free is bundled outside cable core and is tightened, the low cigarette of the high-strength halogen-free
Wrapped modified form bilayer glass fibre belt cooling layer and low smoke, zero halogen polyolefin oxygen barrier is extruded outside polyolefin band；The low smoke, zero halogen
Ceramic polyolefin outer jacket and coated with nano heat loss through radiation High tailored coating layer are extruded with outside polyolefin oxygen barrier；
The insulation cable includes insulated wire cores, and first wrapped anaerobic soft copper band metal screen layer changes further around packet outside insulated wire cores
Good figure single layer glass fibre belt heat insulation and heat control layer；The packing is carried flexible aircraft cable by circle and is carried in circle soft
Property aircraft cable outside wrapped section be in cambered-surface fan-shaped the low cigarette polyolefin jacket of high-strength halogen-free, the low cigarette of the high-strength halogen-free is poly-
The arc side of two isosceles of alkene sheath distinguishes the corresponding outermost nm radiation radiating and cooling coating of two insulation cables
Layer fits, and the inner layer surface of another arc side cigarette polyolefin high intensity band low with high-strength halogen-free fits.
Be further improved, the insulated wire cores by center conductor and three-layer co-extruded conductor shield outside conductor,
Insulating layer, insulation screen are constituted.
It is further improved, the modified form glass fibre belt heat insulation and heat control layer is to be coated with radiation protection on glass fibre band to apply
Material is constituted.
It is further improved, the conductor is to press copper conductor.
It is further improved, the conductor shield and insulation screen are by the compound semi-conductive screen of low resistance thermostabilization graphene
Material is constituted.
It is further improved, the copper conductor that presses is twisted by the soft copper silk of 60 2.52 mm of Φ, and outer diameter is
23.5mm, cross section 400mm2。
A kind of skyscraper preparation method that crane cable is pressed in oxygen barrier cooling fire resisting, includes the following steps：
1）It is electrolysed copper weld pool, continuous casting and rolling goes out 8.0 mm cathode copper bars of Φ；
2）8.0 mm cathode copper bars of Φ carry out the soft copper silk that Φ 2.52mm are made in wire drawing and annealing；
3）The soft copper silk of 60 2.52 mm of Φ is twisted, the 400mm that outer diameter is 23.5mm is twisted2Conductor；
4）Three-layer co-extruded conductor shield, insulating layer, insulation screen outside conductor, using extrusion die, conductor shield, insulation
Layer, insulation shielding layer thickness are respectively 0.4mm, 3.4 mm, 0.6mm, and insulation screen outer diameter is 32.3mm；
5）Wrapped soft copper band shielded layer, thickness 0.12mm, width 40mm are overlapped outside insulation screen, shielding outer diameter is
32.6mm；
6）Wrapped Duplication >=50% outside copper strip shielding layer, thickness are the modified form single layer glass fibre belt heat insulation and heat control layer of 0.6mm, around
Packet outer diameter is 35.6mm；
7）Totally 6 core dextrad stranding：3 core 400mm2Power wire core, the low cigarette of 3 core ribbon ф 16mm aircraft cable outsourcing high-strength halogen-frees
The packing of fire retardant polyolefin, laying up diameter 76.8mm, laying up pitch 1600mm；Stranding periphery band 2 × ф 1.2mm steel
Cord outsourcing high-strength halogen-free low-smoke flame-proof polyolefin, appearance and size are that width 15mm × thickness 3mm band left-hands binding tightens, band
Outer diameter is 82.8mm；
8）Wrapped Duplication >=50% outside band, thickness are the modified form single layer glass fibre belt heat insulation and heat control layer of 0.6mm, wrapped outer diameter
85.8mm；
9) oxygen index (OI) >=35% is extruded again, thickness is the ceramic halogen-free and low-smoke flame-retardant polyolefin oxygen barrier layer of 2.0mm, outside oxygen barrier layer
Diameter 89.8mm
10）Finally, oxygen index (OI) >=40% is extruded, the ceramic low smoke, zero halogen polyolefin and coating thickness that thickness is 3.8mm are
The nm radiation radiating and cooling dope layer of 0.5mm, cable finished product outer diameter are 98.4mm.
Advantageous effect：Compared with prior art, it is an advantage of the invention that：
1, present invention insulation is using three-layer co-extruded, the inside and outside shielding material selection compound semiconductive screen of low resistance thermostabilization graphene
Material is covered, thermal stability is strong, improves homo-effect of the shielded layer to electric field, and reduce the entire outer diameter of insulated wire cores, optimizes
Insulation performance enhances cable current-carrying capability, improves the safety and reliability of power circuit operation；
2, dual cooling layer is set in the present invention, fire-retardant using the wrapped formation collection of the improvement fiber type band for being coated with radiation shielding coating,
It is oxygen barrier, heat absorption in one fire resisting cool down layer, can effectively stop propagation of flame, flue gas content is small, light transmittance is high, Halogen, environmental protection,
Ensure that cable normal operation ensures effective transmission of dynamical system, reduces unnecessary economic and human loss；
3, the present invention selects the aircraft cable for extruding the low cigarette polyolefine material cladding of fan-shaped high-strength halogen-free, is filled in cable
Peripheral gap so that fan-shaped cambered surface and cable surface are in close contact, and single-core cable is by steel wire rope when such cable lifting
Lateral pressure, the surface of cable can be dispersed in, be not in pressure concentrate, and ensure cable reach A grades it is fire-retardant；
4, the low cigarette polyolefine material high intensity band binding of aircraft cable outsourcing high-strength halogen-free in periphery of the present invention tightens, and makes
Filling and unit cable are combined closely stablizes overall structure as one, substantially increases cable entirety tensile strength；Especially arc
Face sector supporting body and cable core adjacent contact area are big, substantially increase frictional force between the two, and auxiliary twisted synthesizing cable, binding are pricked
It is tightlier increased frictional force between the two and globality, thus greatly whole tensile strength can be born, makes it possible to adapt to
Skyscraper hanging is laid；
5, outer jacket of the present invention, oxygen barrier layer, which are all made of, extrudes new ceramics LSOH anti-flaming fire-resistant polyolefin environment-friendly materials,
There are flame, nonflame at 350-1600 DEG C, do not melt, does not drip, do not fall off, spot fire, crust speed will not be caused fast
And shell is hard closely knit, can effectively completely cut off flame, prevents propagation of flame, has the oxygen barrier effect of the heat-insulated thermal insulation of good fire insulation；
6, it is coated with level-one fire prevention coat on outer jacket of the present invention, changes the combustion characteristics of cable appearance, retardance fire is fast
Speed sprawling, slows down flame propagation velocity, fire resistant flame retardant performance；
7, structure of the invention is stable, compact, and bearing capacity is strong.Not only have the ability that vertical run is built more than high level, and
And Halogen, low cigarette, it is oxygen barrier, cooling, fire resisting fully meet use demand.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the process flow chart of the present invention.
Specific implementation mode
The present invention is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of skyscraper presses crane cable, including cable core, the cable core in oxygen barrier cooling fire resisting
It is formed by three eradication edge cable twists, the gap filling section of the cable core is in cambered-surface fan-shaped packing 7；It is bundled outside cable core
The low cigarette polyolefin band 8 of high-strength halogen-free simultaneously tightens, the wrapped double-deck modified form outside the low cigarette polyolefin band of the high-strength halogen-free
Glass fibre belt cooling layer 9 simultaneously extrudes low smoke, zero halogen polyolefin oxygen barrier 10；It is extruded with pottery outside the low smoke, zero halogen polyolefin oxygen barrier
Porcelain polyolefin outer jacket 11 and coated with nano heat loss through radiation High tailored coating layer 12；
The insulation cable includes insulated wire cores, and first wrapped anaerobic soft copper band metal screen layer 5 is further around packet outside insulated wire cores
Single layer modified form glass fibre belt heat insulation and heat control layer 6；The packing is carried flexible aircraft cable by circle and is held in circle
The low cigarette polyolefin jacket of high-strength halogen-free that wrapped section outside flexible aircraft cable is in cambered-surface fan-shaped is carried, the high-strength halogen-free is low
The arc side of two isosceles of cigarette polyolefin jacket distinguishes the corresponding outermost nm radiation radiating and cooling of two insulation cables
Dope layer fits, and the inner layer surface of another arc side cigarette polyolefin high intensity band low with high-strength halogen-free fits.
The insulated wire cores are by center conductor 1 and three-layer co-extruded conductor shield 2 outside conductor, insulating layer 3, absolutely
Edge shielded layer 4 is constituted, and conductor shield and insulation screen are by the compound semi-conductive shielding material of low resistance thermostabilization graphene
It constitutes；
The copper conductor that presses is twisted by the soft copper silk of 60 2.52 mm of Φ, and outer diameter 23.5mm, cross section is
400mm2。
As shown in Fig. 2, a kind of skyscraper of the present invention preparation side for pressing crane cable in oxygen barrier cooling fire resisting
Method includes the following steps：
1）It is electrolysed copper weld pool, continuous casting and rolling goes out 8.0 mm cathode copper bars of Φ；
2）8.0 mm cathode copper bars of Φ carry out the soft copper silk that Φ 2.52mm are made in wire drawing and annealing；
3）The soft copper silk of 60 2.52 mm of Φ is twisted, the 400mm that outer diameter is 23.5mm is twisted2Conductor；
4）Three-layer co-extruded conductor shield, insulating layer, insulation screen outside conductor, using extrusion die, conductor shield, insulation
Layer, insulation shielding layer thickness are respectively 0.4mm, 3.4 mm, 0.6mm, and insulation screen outer diameter is 32.3mm；
5）Wrapped soft copper band shielded layer, thickness 0.12mm, width 40mm are overlapped outside insulation screen, shielding outer diameter is
32.6mm；
6）Wrapped Duplication >=50% outside copper strip shielding layer, thickness are the single layer modified form glass fibre belt heat insulation and heat control layer of 0.6mm, around
Packet outer diameter is 35.6mm；
7）Totally 6 core dextrad stranding：3 core 400mm2Power wire core, the low cigarette of 3 core ribbon ф 16mm aircraft cable outsourcing high-strength halogen-frees
The packing of fire retardant polyolefin, laying up diameter 76.8mm, laying up pitch 1600mm；Stranding periphery band 2 × ф 1.2mm steel
Cord outsourcing high-strength halogen-free low-smoke flame-proof polyolefin, appearance and size are that width 15mm × thickness 3mm band left-hands binding tightens, band
Outer diameter is 82.8mm；
8）Wrapped Duplication >=50% outside band, thickness are the double-deck modified form glass fibre belt heat insulation and heat control layer of 0.6mm, wrapped outer diameter
85.8mm；
9) oxygen index (OI) >=35% is extruded again, thickness is the ceramic halogen-free and low-smoke flame-retardant polyolefin oxygen barrier layer of 2.0mm, outside oxygen barrier layer
Diameter 89.8mm
10）Finally, oxygen index (OI) >=40% is extruded, the ceramic low smoke, zero halogen polyolefin and coating thickness that thickness is 3.8mm are
The nm radiation radiating and cooling dope layer of 0.5mm, cable finished product outer diameter are 98.4mm, examine qualified storage.
Its conductor shielding and insulation shielding use the compound semi-conductive shielding material of low resistance thermostabilization graphene, thermostabilization
Property it is strong, enhancing shielded layer reduces the entire outer diameter of insulated wire cores to the homo-effect of electric field, reduces insulation tg δ, optimization
Insulation performance enhances cable current-carrying capability, ensures the safety and reliability of power circuit operation, improves the operation longevity of cable
Life；The layer that cools down uses modified form（0.6mm）Glass fiber tape integrates fire-retardant, oxygen barrier heat absorption, enhances cable fire performance.It is single
With three by the low cigarette polyolefine material of aircraft cable outsourcing high-strength halogen-free between core insulation cable, section is filled out in cambered-surface fan-shaped
It fills, the two twisted synthesizing cable, periphery is pricked by the low cigarette polyolefine material high intensity band binding of aircraft cable outsourcing high-strength halogen-free
Tightly, the tensile strength for substantially increasing cable entirety has long length Lifting Capacity, it is ensured that cable is safely and effectively run.Outer shield
It is coated with fire prevention coat on layer, changes the combustion characteristics of cable, retardance fire is spread rapidly, slows down flame propagation velocity,
Enhance cable fire-proof performance.
Structure of the invention is stable, compact, and Halogen, low cigarette, radiating and cooling is fast, is provided simultaneously with long length Lifting Capacity and fire resisting
The midium voltage cable of ability can continue as high-rise building power supply, especially for fire-fighting equipment, emergency service when fire occurs
Power conveying is provided with safety device.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
It for member, without departing from the principle of the present invention, can also make several improvements, these improvement also should be regarded as the present invention's
Protection domain.
Claims (7)
1. a kind of skyscraper presses crane cable in oxygen barrier cooling fire resisting, it is characterised in that：Including cable core, the cable core by
Three eradication edge cable twists form, and the gap filling section of the cable core is in cambered-surface fan-shaped packing；Height is bundled outside cable core
Intensity low smoke, zero halogen polyolefin band simultaneously tightens, and wrapped thickness is 0.6mm's outside the low cigarette polyolefin band of the high-strength halogen-free
The double-deck modified form glass fibre belt cooling layer simultaneously extrudes low smoke, zero halogen polyolefin oxygen barrier；It is squeezed outside the low smoke, zero halogen polyolefin oxygen barrier
It is surrounded by ceramic polyolefin outer jacket and coated with nano heat loss through radiation High tailored coating layer；
The insulation cable includes insulated wire cores, and first wrapped anaerobic soft copper band metal screen layer is further around Bao Dan outside insulated wire cores
Layer modified form glass fibre belt heat insulation and heat control layer；The packing is carried flexible aircraft cable by circle and is carried in circle soft
Property aircraft cable outside wrapped section be in cambered-surface fan-shaped the low cigarette polyolefin jacket of high-strength halogen-free, the low cigarette of the high-strength halogen-free is poly-
The arc side of two isosceles of alkene sheath distinguishes the corresponding outermost nm radiation radiating and cooling coating of two insulation cables
Layer fits, and the inner layer surface of another arc side cigarette polyolefin high intensity band low with high-strength halogen-free fits.
2. skyscraper according to claim 1 presses crane cable in oxygen barrier cooling fire resisting, it is characterised in that：Described
Insulated wire cores are made of center conductor and three-layer co-extruded conductor shield, insulating layer, insulation screen outside conductor.
3. skyscraper according to claim 1 presses crane cable in oxygen barrier cooling fire resisting, it is characterised in that：Described
Modified form glass fibre belt heat insulation and heat control layer is to be coated with radiation shielding coating on glass fibre band to constitute.
4. skyscraper according to claim 2 presses crane cable in oxygen barrier cooling fire resisting, it is characterised in that：It is described to lead
Body is to press copper conductor.
5. skyscraper according to claim 2 presses crane cable in oxygen barrier cooling fire resisting, it is characterised in that：It is described to lead
Body shielded layer and insulation screen are made of the compound semi-conductive shielding material of low resistance thermostabilization graphene.
6. skyscraper according to claim 3 presses crane cable in oxygen barrier cooling fire resisting, it is characterised in that：It is described tight
Pressure copper conductor is twisted by the soft copper silk of 60 2.52 mm of Φ, outer diameter 23.5mm, cross section 400mm2。
7. a kind of preparation for pressing crane cable in oxygen barrier cooling fire resisting of skyscraper as claimed in any one of claims 1 to 6
Method, it is characterised in that：Include the following steps：
1）It is electrolysed copper weld pool, continuous casting and rolling goes out 8.0 mm cathode copper bars of Φ；
2）8.0 mm cathode copper bars of Φ carry out the soft copper silk that Φ 2.52mm are made in wire drawing and annealing；
3）The soft copper silk of 60 2.52 mm of Φ is twisted, the 400mm that outer diameter is 23.5mm is twisted2Conductor；
4）Three-layer co-extruded conductor shield, insulating layer, insulation screen outside conductor, using extrusion die, conductor shield, insulation
Layer, insulation shielding layer thickness are respectively 0.4mm, 3.4 mm, 0.6mm, and insulation screen outer diameter is 32.3mm；
5）Wrapped soft copper band shielded layer, thickness 0.12mm, width 40mm are overlapped outside insulation screen, shielding outer diameter is
32.6mm；
6）Wrapped Duplication >=50% outside copper strip shielding layer, thickness are the single layer modified form glass fibre belt heat insulation and heat control layer of 0.6mm, around
Packet outer diameter is 35.6mm；
7）Totally 6 core dextrad stranding：3 core 400mm2Power wire core, the low cigarette of 3 core ribbon ф 16mm aircraft cable outsourcing high-strength halogen-frees
The packing of fire retardant polyolefin, laying up diameter 76.8mm, laying up pitch 1600mm；Stranding periphery band 2 × ф 1.2mm steel
Cord outsourcing high-strength halogen-free low-smoke flame-proof polyolefin, appearance and size are that width 15mm × thickness 3mm band left-hands binding tightens, band
Outer diameter is 82.8mm；
8）Wrapped Duplication >=50% outside band, thickness are the double-deck modified form glass fibre belt heat insulation and heat control layer of 0.6mm, wrapped outer diameter
85.8mm；
9) oxygen index (OI) >=35% is extruded again, thickness is the ceramic halogen-free and low-smoke flame-retardant polyolefin oxygen barrier layer of 2.0mm, outside oxygen barrier layer
Diameter 89.8mm
10）Finally, oxygen index (OI) >=40% is extruded, the ceramic low smoke, zero halogen polyolefin and coating thickness that thickness is 3.8mm are
The nm radiation radiating and cooling dope layer of 0.5mm, cable finished product outer diameter are 98.4mm.
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| CN201810404075.4A CN108520801A (en) | 2018-04-28 | 2018-04-28 | A kind of skyscraper pressure crane cable and preparation method thereof in oxygen barrier cooling fire resisting |
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| CN201810404075.4A CN108520801A (en) | 2018-04-28 | 2018-04-28 | A kind of skyscraper pressure crane cable and preparation method thereof in oxygen barrier cooling fire resisting |
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| CN108520801A true CN108520801A (en) | 2018-09-11 |
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| CN201810404075.4A Pending CN108520801A (en) | 2018-04-28 | 2018-04-28 | A kind of skyscraper pressure crane cable and preparation method thereof in oxygen barrier cooling fire resisting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111883304A (en) * | 2020-07-30 | 2020-11-03 | 开开电缆科技有限公司 | Fire-resistant medium voltage power cable |
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| CN106057344A (en) * | 2016-07-28 | 2016-10-26 | 江苏长峰电缆有限公司 | Impact-resistant spray-resistant, halogen-free, low-smoke flame-retardant medium voltage fire-resistant cable |
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| JP2008159406A (en) * | 2006-12-25 | 2008-07-10 | Yazaki Corp | Fire-resistant cable |
| CN203338853U (en) * | 2013-05-31 | 2013-12-11 | 远东电缆有限公司 | Fire-proof low smoke zero halogen medium voltage hoisting cable used for high-rise building |
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| CN111883304A (en) * | 2020-07-30 | 2020-11-03 | 开开电缆科技有限公司 | Fire-resistant medium voltage power cable |
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Application publication date: 20180911 |