CN102184761B - Mouse-proof, termite-proof, high-antiflaming, fireproof and environment-friendly concentric conductor cable - Google Patents
Mouse-proof, termite-proof, high-antiflaming, fireproof and environment-friendly concentric conductor cable Download PDFInfo
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- CN102184761B CN102184761B CN201010187000.9A CN201010187000A CN102184761B CN 102184761 B CN102184761 B CN 102184761B CN 201010187000 A CN201010187000 A CN 201010187000A CN 102184761 B CN102184761 B CN 102184761B
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Abstract
The invention discloses a mouse-proof, termite-proof, high-antiflaming, fireproof and environment-friendly concentric conductor cable. The concentric conductor cable comprises a fireproof insulation wire and an outer sheath, and is characterized by further comprising a zero line concentric conductive layer wrapped outside the fireproof insulation wire, an isolation layer wrapped outside the zero line concentric conductive layer and a protection wire concentric conductor layer wrapped outside the isolation layer; and the outer sheath is wrapped outside the protection wire concentric conductor layer. The mouse-proof, termite-proof, high-antiflaming, fireproof and environment-friendly concentric conductor cable has the advantages that: the cable can be applied to an environment capable of preventing mouse biting and termite gnawing, and all materials are environment-friendly, so various fireproof and antiflaming environment requirements can be met. By arranging the zero line concentric conductive layer and the protection wire concentric conductor layer, phase sequence impedance and zero sequence impedance can be matched. The concentric conductor cable is a very ideal power cable applied to public places and large engineering such as nuclear power stations, metros, airports and the like.
Description
Technical field
The present invention relates to cable technology field, particularly a kind of protection against rodents, anti-ant, the fire-resistant environment-friendly type concentric conductor cable of high flame retardant.
Background technology
Common five core lv power cables are general adopt five core circles, fan-shaped or watt type structure together stranding twist together, the cable phase sequence of this structure is larger, and each phase of impedance is unequal, can produce so the larger problem such as circuit loss and impedance unbalance.Simultaneously common protection against rodents, termite proof cable generally adopt and in cable jacket, add the additive such as dieldrite, the agent of Chinese mugwort formula that the toxicity of non-environmental protection is larger and heavy metal material as stabilizer, and these materials easily move, after a period of time, surrounding environment is caused to larger pollution.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of protection against rodents, anti-ant, the fire-resistant environment-friendly type concentric conductor cable of high flame retardant, to solve the existing weak point of prior art.
In order to realize foregoing invention object; protection against rodents of the present invention, anti-ant, the fire-resistant environment-friendly type concentric conductor cable of high flame retardant; comprise hot-face insulation core and oversheath; it is characterized in that; also comprise the zero line concentric conductor layer being coated on outside hot-face insulation core and be coated on the separator outside zero line concentric conductor layer and be coated on the protection core concentric conductor layer outside separator, oversheath is coated on outside protection core concentric conductor layer.
Wherein, oversheath adopts the termite-proof low-smoke and halogen-free flame retardant polyolefin jacket material of protection against rodents to extrude and forms, and its oxygen index should be not less than 36.
Protection core concentric conductor layer of the present invention by some copper cash dredge form around structure conductor layer, be coated on the fine copper belt outside conductor layer, the low smoke halogen-free electric wire glass fiber flame retardant belt being coated on outside fine copper belt forms; wherein the strand of conductor layer is to being left-hand, and pitch is 410-420mm.Copper cash material anaerobic cathode copper, cross section is 70mm
2, structure is 47/1.38mm.Duplication >=15% of glass fiber flame retardant belt for fine copper belt and low smoke halogen-free electric wire.
Separator of the present invention adopts low-smoke bittern-free highly fire-proof cable material of polyolefin to extrude and forms, oxygen index >=36 of described low-smoke bittern-free highly fire-proof cable material of polyolefin, and thickness is about 1.4mm.
Zero line concentric conductor layer of the present invention by some copper cash dredge form around structure zero line concentric conductor layer, be coated on the fine copper belt outside zero line concentric conductor layer, the low smoke halogen-free electric wire glass fiber flame retardant belt being coated on outside fine copper belt forms, wherein the strand of conductor layer is to being left-hand, and pitch is 350-360mm.Copper cash material anaerobic cathode copper, cross section is 140mm
2, structure is 55/1.67mm.Duplication >=15% of glass fiber flame retardant belt for fine copper belt and low smoke halogen-free electric wire.
Hot-face insulation core of the present invention comprises that cable core and the cable core flame retardant coating being coated on outside cable core form, and wherein cable core is made up of some insulation core wires, filler, and the pitch of cable core is 45-47 times of laying up diameter; Described cable core flame retardant coating adopts synthetic mica tape wrapped, and the refractory temperature of mica tape is not less than 850 ℃, and wrapped mode repeats wrapped 2 layers to be not less than 50% Duplication, and mica tape thickness is 0.14-0.17mm.
Filler of the present invention is alkali-free glass wool gasket for packing or asbestos cord, and its oxygen index (OI) is more than 58.
Insulation core wire of the present invention is made up of conductor and the insulating barrier that is coated on the flame retardant coating outside conductor and be coated on outside flame retardant coating, and wherein conductor adopts annealed copper stranded conductor, and material is anaerobic cathode copper, and cross sectional shape is circular or fan-shaped; Flame retardant coating adopts synthetic mica tape wrapped, and the refractory temperature of mica tape is not less than 850 ℃. and wrapped mode repeats wrapped 2 layers to be not less than 50% Duplication, and mica tape thickness is 0.14-0.17mm; Insulating barrier adopts crosslinked polyethylene insulation material to squeeze tubular type and is coated.
Advantage of the present invention is that this cable can be applied to and has the damaged by rats of preventing and close termite and gnaw in the environment of biting, and all material all adopts ep-type material, can meet fire-resistant and fire-retardant multiple environmental requirement.The present invention, by zero line concentric conductor layer and protection core concentric conductor layer are set, makes cyclic impedance and zero sequence impedance coupling, and the present invention is a kind of public place and ideal power cable kind of heavy construction such as nuclear power station, subway, airport of being widely used in
Accompanying drawing explanation
Fig. 1 is the radial cross-section of protection against rodents of the present invention, anti-ant, the fire-resistant environment-friendly type concentric conductor cable of high flame retardant embodiment 1.
Fig. 2 is the radial cross-section of protection against rodents of the present invention, anti-ant, the fire-resistant environment-friendly type concentric conductor cable of high flame retardant embodiment 2.
Embodiment
Specific embodiments and the drawings further illustrate the present invention below.
Embodiment 1
Protection against rodents as described in Figure 1, anti-ant, the fire-resistant environment-friendly type concentric conductor cable of high flame retardant; comprise hot-face insulation core, be coated on zero line concentric conductor layer outside hot-face insulation core, be coated on separator 9 outside zero line concentric conductor layer, be coated on the protection core concentric conductor layer outside separator 9, be coated on the oversheath 13 outside protection core concentric conductor layer.
Oversheath 13 adopts the termite-proof low-smoke and halogen-free flame retardant polyolefin jacket material of protection against rodents to extrude and forms, and its oxygen index should be not less than 36, and thickness is about 2.5mm, and external diameter is 47.1-47.5mm.The color of oversheath 13 is generally black, can be adjusted into other color according to customer requirement.
Protection core concentric conductor layer by some copper cash dredge the conductor layer 10 that forms around structure, be coated on the fine copper belt 11 outside conductor layer, the low smoke halogen-free electric wire glass fiber flame retardant belt 12 being coated on outside fine copper belt 11 forms; wherein the strand of conductor layer 10 is to being left-hand; pitch is 410-420mm, and external diameter is 41.3-41.7mm.。Copper cash material anaerobic cathode copper, cross section is 70mm
2, structure is 47/1.38mm.Duplication >=15% of glass fiber flame retardant belt 12 for fine copper belt 11 and low smoke halogen-free electric wire.Low smoke halogen-free electric wire should be not less than 58 with the oxygen index of glass fiber flame retardant band.
Separator 9 adopts low-smoke bittern-free highly fire-proof cable material of polyolefin to extrude and forms, oxygen index >=36 of low-smoke bittern-free highly fire-proof cable material of polyolefin, and the thickness of separator 9 is about 1.4mm, and external diameter is 38.5-38.9.
Zero line concentric conductor layer by some copper cash dredge form around structure zero line concentric conductor layer 6, be coated on the fine copper belt 7 outside zero line concentric conductor layer 6, the low smoke halogen-free electric wire glass fiber flame retardant belt 8 being coated on outside fine copper belt 7 forms, wherein the strand of conductor layer 6 is to being left-hand, pitch is 350-360mm, and external diameter is 35.1-35.4mm.Copper cash material anaerobic cathode copper, cross section is 140mm
2, structure is 55/1.67mm.Duplication >=15% of glass fiber flame retardant belt 8 for fine copper belt 7 and low smoke halogen-free electric wire.Low smoke halogen-free electric wire should be not less than 58 with the oxygen index of glass fiber flame retardant band.
Hot-face insulation core comprises that cable core and the cable core flame retardant coating 5 being coated on outside cable core form, cable core flame retardant coating 5 adopts synthetic mica tape wrapped, the refractory temperature of synthetic mica tape is not less than 850 ℃, and wrapped mode repeats wrapped 2 layers to be not less than 50% Duplication, and synthetic mica tape thickness is 0.14mm.
Cable core is made up of 3 insulation core wires, filler 4, and the pitch of cable core is 45 times of laying up diameter, is about 150mm.Filler 4 is alkali-free glass wool gasket for packing or asbestos cord, and its oxygen index (OI) is more than 58.Filling radical is that the central authorities of 4,3 insulation core wires of 4* Φ fill one, and peripheral clearance is filled respectively one.
Insulation core wire is made up of conductor 1 and the insulating barrier 3 that is coated on the flame retardant coating 2 outside conductor 1 and be coated on outside flame retardant coating 2, and wherein conductor 1 adopts annealed copper stranded conductor, and material is anaerobic cathode copper, and cross sectional shape is circular, and cross section is 120mm
2, structure is 36/2.1mm; Flame retardant coating 2 adopts synthetic mica tape wrapped, and the refractory temperature of synthetic mica tape is not less than 850 ℃.Wrapped mode repeats wrapped 2 layers to be not less than 50% Duplication, and mica tape thickness is 0.14mm; Insulating barrier 3 adopts crosslinked polyethylene insulation material, and insulating barrier 3 nominal thickness are: 1.2mm, outer insulation diameter is between 15.0-15.4mm.Insulating barrier 3 extrudes and adopts crowded tubular type coated, and guarantees that insulating barrier 3 is closely coated with flame retardant coating 2.Three insulated wire cores colors are respectively: red, yellow, and green.
Embodiment 2
Referring to Fig. 2, outside the cross sectional shape of the insulation core wire of the present embodiment is different from embodiment 1, all the other are identical with embodiment 1.The insulation core wire of the present embodiment is made up of conductor 1 and the insulating barrier 3 that is coated on the flame retardant coating 2 outside conductor 1 and be coated on outside flame retardant coating 2, and wherein conductor 1 adopts annealed copper stranded conductor, and material is anaerobic cathode copper, and cross sectional shape is the fan-shaped stranded structure of pressing.Fan-shaped height is 11.3 ± 0.1mm, first fan-shaped wide 18.8 ± 0.2mm. becomes conductor 1 by 36 annealed copper wires according to the arrangement mode concentric stranding of 6+12+18, amount to 3 layers of every layer of direction of lay contrary, every layer of strand direction of lay is followed successively by from the inside to the outside: dextrad, left-hand, dextrad.Flame retardant coating 2 adopts synthetic mica tape wrapped, and the refractory temperature of mica tape is not less than 850 ℃. and wrapped mode repeats wrapped 2 layers to be not less than 50% Duplication, and mica tape thickness is 0.14; Insulating barrier 3 adopts crosslinked polyethylene insulation material, and insulating barrier 3 nominal thickness are: 1.2mm, outer insulation diameter is between 15.0-15.4mm.Insulating barrier 3 extrudes and adopts crowded tubular type coated, and guarantees that insulating barrier 3 is closely coated with flame retardant coating 2.Three insulated wire cores colors are respectively: red, yellow, and green.
The advantage of protection against rodents of the present invention, anti-ant, the fire-resistant environment-friendly type concentric conductor cable of high flame retardant is compared with existing pressure common power cable, cyclic impedance and zero sequence impedance coupling are realized, and there is LSZH, protection against rodents, anti-ant, environmental protection, high flame retardant and the function such as fire-resistant, be a kind of public place and ideal power cable kinds of heavy construction such as nuclear power station, subway, airport of being widely used in.
Claims (6)
1. protection against rodents, anti-ant, the fire-resistant environment-friendly type concentric conductor cable of high flame retardant, comprise hot-face insulation core and oversheath, it is characterized in that, also comprise the zero line concentric conductor layer being coated on outside hot-face insulation core and be coated on the separator outside zero line concentric conductor layer and be coated on the protection core concentric conductor layer outside separator, oversheath is coated on outside protection core concentric conductor layer;
Described protection core concentric conductor layer by some copper cash dredge form around structure conductor layer, be coated on the fine copper belt outside conductor layer, the low smoke halogen-free electric wire glass fiber flame retardant belt being coated on outside fine copper belt forms, wherein the strand of conductor layer is to being left-hand, and pitch is 410-420mm; Duplication >=15% of glass fiber flame retardant belt for fine copper belt and low smoke halogen-free electric wire;
Described zero line concentric conductor layer by some copper cash dredge form around structure zero line concentric conductor layer, be coated on the fine copper belt outside zero line concentric conductor layer, the low smoke halogen-free electric wire glass fiber flame retardant belt being coated on outside fine copper belt forms, wherein the strand of conductor layer is to being left-hand, and pitch is 350-360mm; Duplication >=15% of glass fiber flame retardant belt for fine copper belt and low smoke halogen-free electric wire;
Described oversheath adopts the termite-proof low-smoke and halogen-free flame retardant polyolefin jacket material of protection against rodents to extrude and forms, and its oxygen index should be not less than 36.
2. protection against rodents as claimed in claim 1, anti-ant, the fire-resistant environment-friendly type concentric conductor cable of high flame retardant, it is characterized in that, described separator adopts low-smoke bittern-free highly fire-proof cable material of polyolefin to extrude and forms, oxygen index >=36 of described low-smoke bittern-free highly fire-proof cable material of polyolefin.
3. protection against rodents as claimed in claim 1, anti-ant, the fire-resistant environment-friendly type concentric conductor cable of high flame retardant, it is characterized in that, described hot-face insulation core comprises cable core and is coated on the cable core flame retardant coating formation outside cable core, wherein cable core is made up of some insulation core wires, filler, and the pitch of cable core is 45-47 times of laying up diameter; Described cable core flame retardant coating adopts synthetic mica tape wrapped, and the refractory temperature of mica tape is not less than 850 ℃, and wrapped mode repeats wrapped 2 layers to be not less than 50% Duplication, and mica tape thickness is 0.14-0.17mm.
4. protection against rodents as claimed in claim 3, anti-ant, the fire-resistant environment-friendly type concentric conductor cable of high flame retardant, is characterized in that, described filler is alkali-free glass wool gasket for packing or asbestos cord, and its oxygen index (OI) is more than 58.
5. protection against rodents as claimed in claim 1, anti-ant, the fire-resistant environment-friendly type concentric conductor cable of high flame retardant, it is characterized in that, described hot-face insulation core is made up of conductor and the insulating barrier that is coated on the flame retardant coating outside conductor and be coated on outside flame retardant coating, wherein conductor adopts annealed copper stranded conductor, material is anaerobic cathode copper, and cross sectional shape is circular or fan-shaped; Flame retardant coating adopts synthetic mica tape wrapped, and the refractory temperature of mica tape is not less than 850 ℃. and wrapped mode repeats wrapped 2 layers to be not less than 50% Duplication, and mica tape thickness is 0.14-0.17mm.
6. protection against rodents as claimed in claim 5, anti-ant, the fire-resistant environment-friendly type concentric conductor cable of high flame retardant, is characterized in that, described insulating barrier adopts crosslinked polyethylene insulation material to squeeze tubular type and is coated.
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CN201010187000.9A CN102184761B (en) | 2010-05-28 | 2010-05-28 | Mouse-proof, termite-proof, high-antiflaming, fireproof and environment-friendly concentric conductor cable |
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CN201010187000.9A CN102184761B (en) | 2010-05-28 | 2010-05-28 | Mouse-proof, termite-proof, high-antiflaming, fireproof and environment-friendly concentric conductor cable |
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CN102184761B true CN102184761B (en) | 2014-07-09 |
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Families Citing this family (3)
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CN102637478A (en) * | 2012-05-04 | 2012-08-15 | 无锡市恒汇电缆有限公司 | Fire-resistant inflaming retarding high-voltage cable |
CN104810109A (en) * | 2015-03-23 | 2015-07-29 | 安徽贝特电缆科技有限公司 | Moisture-proof high-voltage-withstanding power cable |
CN105702329A (en) * | 2016-01-29 | 2016-06-22 | 四川明星电缆股份有限公司 | K3 fire-resisting cable and preparation technology thereof |
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CN2591713Y (en) * | 2002-12-21 | 2003-12-10 | 新疆特变电工股份有限公司 | Concentric five-core electrical cable |
CN2845116Y (en) * | 2005-11-20 | 2006-12-06 | 江苏亨通电力电缆有限公司 | Shielded cable for frequency control of motor working below 35 KV |
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