CN204904898U - High conductibity lock armo environmental protection sheath aluminum alloy fire resisting cable - Google Patents
High conductibity lock armo environmental protection sheath aluminum alloy fire resisting cable Download PDFInfo
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- CN204904898U CN204904898U CN201520586343.0U CN201520586343U CN204904898U CN 204904898 U CN204904898 U CN 204904898U CN 201520586343 U CN201520586343 U CN 201520586343U CN 204904898 U CN204904898 U CN 204904898U
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Abstract
The utility model relates to a high conductibity lock armo environmental protection sheath aluminum alloy fire resisting cable, include the fire -resistant insulation core who forms by aluminum alloy conductor and outer wrap -around flame retardant coating in proper order and insulating layer, by the cable core that the transposition of several fire -resistant insulation core is formed, the fire -retardant gasket for packing of gap filling between the cable core, outside the cable core crowded package or around wrap at a distance from the oxygen layer, at wrap -around inner liner, lock armo, restrictive coating in proper order outside the oxygen layer. Compared with the prior art, the utility model discloses when reaching aluminium conductor electric conductive property, still improved ductility ability, corrosion resisting property, pliability and the creep resistance properties of conductor, make the connection safe and reliable of conductor, do not have steamed low cigarette flame retardant polyolefin sheath under high temperature, flame condition low cigarette, do not have steamed, environmental protection, safety, the cable have fire -retardantly go with fire resistance effect, advantages such as long service life, safe and reliable, low price. Safety, environmental protection are all made by nothing bittern, nontoxic material to this cable simultaneously.
Description
Technical field
The utility model relates to a kind of fire-resisting cable, especially relates to a kind of high conductivity lock armo environmental protection sheath aluminum alloy fire-resistant cable.
Background technology
Along with the development of domestic economy continued smooth, railway, highway, large-scale service facility etc. construction are also like a raging fire carrying out, governments at all levels, each unit and the requirement of the common people to safety and environmental protection are more and more higher, thereupon, also increase fast the demand of fire-resisting cable.But fire-resisting cable is in the market all copper core cable, expensive.And low-cost aluminium cable is because creep-resistant property is poor, pliability is poor, contact resistance is comparatively large, causes the connection reliability of aluminium cable joint and terminal poor, make aluminium cable can not meet the requirement of fire-resisting cable.In addition, the sheath of most fire-resisting cable adopts flame-proof polyvinyl chloride sheath, and degradation property is poor, resolves into hydrogen chloride and chlorine-containing compound under high temperature and flame environment, has severe toxicity and severe corrosive, can not meet the environmental requirement day by day improved.
Chinese patent CN204303442U discloses a kind of closed armouring smokeless halogen-free and does not fire power cable, comprise sheath, insulating barrier and the conductor from setting gradually outside to inside, between sheath and insulating barrier, be also provided with filler, sheath is welding embossing metal armouring sheath.The patented product fire resistance is good, smokelessly nontoxic when burning under flame, has higher temperature tolerance.But the patented product is a kind of flame retardant cable, does not have fire resistance, fire resistant requirements can not be met.And the patented product adopts copper conductor, expensive, add metallic sheath material expensive, equipment and the technical requirement of processing needs are also higher, make whole cable expensive.
Utility model content
The purpose of this utility model be exactly in order to overcome above-mentioned prior art exist defect and a kind of high conductivity lock armo environmental protection sheath aluminum alloy fire-resistant cable is provided, be made up of Halogen, non-toxic material, safety, environmental protection.Its performance can match in excellence or beauty with copper core fire-resisting cable, and when identical conduction ability, cost reduces 30% ~ 50% than copper core cable, is suitable for alternative copper core fire-resisting cable especially, investment reduction.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of high conductivity lock armo environmental protection sheath aluminum alloy fire-resistant cable, comprises
The hot-face insulation core be made up of aluminium alloy conductor and outer flame retardant coating coated successively thereof and insulating barrier,
The cable core be twisted into by several hot-face insulation core,
The flame resistant filler rope of cable core gap-fill,
Extrude or wrapped oxygen barrier layer outside the inner core that cable core and gasket for packing are formed,
The inner covering that oxygen barrier layer extrudes,
At the lock armo of inner covering outer cladding,
The restrictive coating extruded outside lock armo.
Described aluminium alloy conductor is the 8000 serial rare-earth aluminium alloys of conductance 61%-62%IACS, is pressed the aluminium alloy conductor be twisted into by aluminium alloy single line through layering.
Described flame retardant coating is the flame retardant coating of the overlapping wrapped formation of multilayer synthetic mica tape reverse acting spiral.
Described insulating barrier is the insulating barrier that crosslinked polyethylene extrudes.
Described oxygen barrier layer is that Ceramic silicon rubber extrudes or the oxygen barrier layer of wrapped formation.
Described inner covering is halogen-free and low-smoke flame-retardant polyolefin inner covering.
Described lock armo is aluminum alloy strip lock armo.
Described restrictive coating is halogen-free and low-smoke flame-retardant polyolefin sheathed layer.
Compared with prior art, the utility model has the following advantages:
1, conductor adopts 8000 series alloys, by adding iron, copper, magnesium and rare earth element in aluminium, again by special annealing process, the conductance of aluminium alloy is made to reach more than 61.5%IACS, suitable with aluminium (conductance can reach 61%IACS); Simultaneously the creep-resistant property of aluminium alloy, pliability significantly improve, close with copper; Contact resistance reduces, suitable with copper.By above improvement, effectively improve the critical defect of aluminium cable, can significantly improve the reliability of conductor tab or terminal connection, the reliability that aluminium alloy electric cable joint or terminal are connected can match in excellence or beauty with copper, the flexible raising of conductor simultaneously, is convenient to produce, install and use.
2, cable cost performance is high, and than its conductive resistance of aluminium alloy conductor and ampacity that copper conductor cross section increases 60% and copper conductor quite, and cost declines to a great extent about 30%-50%.The proportion of copper is 3.3 times of aluminium alloy, and copper valency (by weight) is about 2.8 times of aluminium alloy, that is, the price of the copper conductor of same cross-sectional is about 9.2 times of aluminium alloy conductor, and the price of the copper conductor of identical conduction ability is about 5.5 times of aluminium alloy conductor.In the cost of Copper core power cable, more than 50% of cost is copper conductor cost, and the cable of large gauge can reach 80%, so aluminum alloy fire-resistant cable to decline to a great extent about 30%-50% than the copper core cable cost of identical conduction ability; In addition, about the light half of copper cable due to aluminium alloy cable weight ratio identical conduction ability, the installation cost of 30%-40% can also be saved for client.A large amount of uses of aluminum alloy fire-resistant cable, save a large amount of investments by for society.
3, flame retardant coating outside conductor adopts the synthetic mica tape of resistance to 1000 DEG C of high temperature, fire resistance and electrical insulation capability excellent, breakdown strength reaches 10kV/mm.Fire-resistant isinglass belt adopts spiral reverse to around-packing technology, and wrapped closed seamless gap is at high temperature not loose, can make fire-resistant more excellent with insulation property.
4, oxygen barrier layer adopts and extrudes or wrapped Ceramic silicon rubber oxygen barrier layer, fire resistance is good, the insulation duricrust of one deck sealing is become during high temperature more than 300 DEG C, stop the injury to built-in electrical insulation and conductor of high temperature and flame, the cable operating time is in case of fire extended greatly, the combustibility requirement of GB/T19666 can be met.
5, product has good chemical resistance and damp proof moisture resistance, is particularly suitable for humidity and rugged environment.
6, lock armo good seal performance, can prevent or reduce the damage of mechanical external force, has good insect protected, anti-ant, protection against rodents effect; Bending radius is little, is beneficial to mounting and installation.
7, halogen-free and low-smoke flame-retardant polyolefin sheathedly cigarette, Halogen is bent down at high temperature, flame condition, environmental protection, safety.
8, high conductivity environmental protection aluminum alloy fire-resistant cable is suitable for using at large-scale public place, gymnasium, hospital, cinema, market, subway, station, mine, precision equipment, commercial and residential building especially, the power supply of the emergency sets such as fire-fighting, evacuation, escape is provided, substitute copper core fire-resisting cable, great amount of investment can be saved, have vast potential for future development, market potential is huge.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, 1-aluminium alloy conductor, 2-flame retardant coating, 3-insulating barrier, 4-flame resistant filler rope, 5-oxygen barrier layer, 6-inner covering, 7-lock armo, 8-restrictive coating.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Embodiment 1
A kind of high conductivity lock armo environmental protection sheath aluminum alloy fire-resistant cable; its structure as shown in Figure 1; this fire-resisting cable forms hot-face insulation core by aluminium alloy conductor 1 and the coated successively flame retardant coating 2 of skin thereof and insulating barrier 3; again by hot-face insulation core twisted synthesizing cable; extrude or wrapped oxygen barrier layer 5 outside cable core gap-fill flame resistant filler rope 4, cable core; outside extrudes inner covering 6, at inner covering 6 outer cladding lock armo 7, extrudes restrictive coating 8 outside lock armo 7.The material of conductor 1 is the high conductivity 8000 serial rare-earth aluminium alloy of conductance 61%-62%IACS, and conductor presses stranded forming by aluminium alloy single line through layering, and conductor adopts box type integral annealing; Flame retardant coating 2 adopts that synthetic mica tape reverse acting spiral is wrapped to be made; Insulating barrier 3 adopts connection polyethylene insulation to extrude and makes; Gasket for packing 4 adopts flame resistant filler rope; Oxygen barrier layer 5 adopts Ceramic silicon rubber to extrude or wrappedly to make; Inner covering 6 adopts halogen-free and low-smoke flame-retardant polyolefin sheathed material to extrude and makes; Armour 7 is made up of aluminum alloy strip lock armo; Restrictive coating 8 adopts halogen-free and low-smoke flame-retardant polyolefin sheathed material to extrude and makes.
When the utility model aluminum alloy fire-resistant cable runs into naked light, outermostly halogen-free and low-smoke flame-retardant polyolefin sheathedly can play good fire retardation, effective ground resistance can stop the intensity of a fire and prolong burning along cable itself, halogen-free and low-smoke flame-retardant polyolefin sheathedly just form ashes, melting drippage can not occur.Aluminum alloy strip lock armo under sheath can not burn, and the effective ground resistance of meeting is stopped the intensity of a fire and prolonged burning along cable itself, and due to lock armo good airproof performance, before armour fusing, flame can not burn cable internal layer.After armour fusing, halogen-free and low-smoke flame-retardant polyolefin inner covering can play good fire retardation, and the effective ground resistance of meeting is stopped the intensity of a fire and prolonged burning along cable itself.After halogen-free and low-smoke flame-retardant polyolefin inner covering is destroyed; the Ceramic silicon rubber oxygen barrier layer exposed can not be burnt; meet fire or more than 300 DEG C, the high temperature resistant duricrust of sealing during high temperature, can be formed; stop the injury to built-in electrical insulation and conductor of high temperature and flame; the cable operating time is in case of fire extended greatly, and not melting under the flame of oxygen barrier layer duricrust more than 1000 DEG C, does not drip; ensure circuit energising as usual in case of fire, firm protective effect is played to circuit.Flame retardant coating outside conductor adopts the synthetic mica tape of resistance to 1000 DEG C of high temperature, fire resistance and electrical insulation capability excellent.Fire-resistant isinglass belt outside conductor adopts spiral reverse to around-packing technology, and wrapped closed seamless gap is at high temperature not loose, can make fire-resistant more excellent with insulation property, makes cable when plastic insulation is destroyed by high temperature and flame, still can be energized for a long time.Above-mentioned measures makes the utility model aluminum alloy fire-resistant cable can meet the combustibility requirement of GB/T19666.This cable is all made up of Halogen, non-toxic material simultaneously, safety, environmental protection.
Claims (9)
1. a high conductivity lock armo environmental protection sheath aluminum alloy fire-resistant cable, is characterized in that, this cable comprises:
The hot-face insulation core be made up of aluminium alloy conductor and outer flame retardant coating coated successively thereof and insulating barrier,
The cable core be twisted into by several hot-face insulation core,
The flame resistant filler rope of cable core gap-fill,
Extrude or wrapped oxygen barrier layer outside the inner core that cable core and gasket for packing are formed,
The inner covering that oxygen barrier layer extrudes,
At the lock armo of inner covering outer cladding,
The restrictive coating extruded outside lock armo.
2. a kind of high conductivity lock armo environmental protection sheath aluminum alloy fire-resistant cable according to claim 1, it is characterized in that, described aluminium alloy conductor is the 8000 serial rare-earth aluminium alloys of conductance 61%-62%IACS.
3. a kind of high conductivity lock armo environmental protection sheath aluminum alloy fire-resistant cable according to claim 1, it is characterized in that, described aluminium alloy conductor is that aluminium alloy single line presses the aluminium alloy conductor be twisted into through layering.
4. a kind of high conductivity lock armo environmental protection sheath aluminum alloy fire-resistant cable according to claim 1, is characterized in that, described flame retardant coating is the flame retardant coating of the overlapping wrapped formation of multilayer synthetic mica tape reverse acting spiral.
5. a kind of high conductivity lock armo environmental protection sheath aluminum alloy fire-resistant cable according to claim 1, it is characterized in that, described insulating barrier is the insulating barrier that crosslinked polyethylene extrudes.
6. a kind of high conductivity lock armo environmental protection sheath aluminum alloy fire-resistant cable according to claim 1, is characterized in that, described oxygen barrier layer is that Ceramic silicon rubber extrudes or the oxygen barrier layer of wrapped formation.
7., according to a kind of high conductivity lock armo environmental protection sheath aluminum alloy fire-resistant cable described in claim 1, it is characterized in that, described inner covering is halogen-free and low-smoke flame-retardant polyolefin inner covering.
8., according to a kind of high conductivity lock armo environmental protection sheath aluminum alloy fire-resistant cable described in claim 1, it is characterized in that, described lock armo is aluminum alloy strip lock armo.
9., according to a kind of high conductivity lock armo environmental protection sheath aluminum alloy fire-resistant cable described in claim 1, it is characterized in that, described restrictive coating is halogen-free and low-smoke flame-retardant polyolefin sheathed layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520586343.0U CN204904898U (en) | 2015-08-06 | 2015-08-06 | High conductibity lock armo environmental protection sheath aluminum alloy fire resisting cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520586343.0U CN204904898U (en) | 2015-08-06 | 2015-08-06 | High conductibity lock armo environmental protection sheath aluminum alloy fire resisting cable |
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| Publication Number | Publication Date |
|---|---|
| CN204904898U true CN204904898U (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520586343.0U Expired - Fee Related CN204904898U (en) | 2015-08-06 | 2015-08-06 | High conductibity lock armo environmental protection sheath aluminum alloy fire resisting cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113764117A (en) * | 2021-08-26 | 2021-12-07 | 贵州晟展峰新材料科技有限公司 | Nano rare earth aluminum alloy cable |
-
2015
- 2015-08-06 CN CN201520586343.0U patent/CN204904898U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113764117A (en) * | 2021-08-26 | 2021-12-07 | 贵州晟展峰新材料科技有限公司 | Nano rare earth aluminum alloy cable |
| CN113764117B (en) * | 2021-08-26 | 2023-05-16 | 贵州晟展峰新材料科技有限公司 | Nanometer rare earth aluminum alloy cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20190806 |
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| CF01 | Termination of patent right due to non-payment of annual fee |