CN203787099U - Flame-retardant fireproof aluminum-alloy cable - Google Patents
Flame-retardant fireproof aluminum-alloy cable Download PDFInfo
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- CN203787099U CN203787099U CN201420114021.1U CN201420114021U CN203787099U CN 203787099 U CN203787099 U CN 203787099U CN 201420114021 U CN201420114021 U CN 201420114021U CN 203787099 U CN203787099 U CN 203787099U
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- flame
- aluminum
- retardant
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- cable
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Abstract
The utility model discloses a flame-retardant fireproof aluminum-alloy cable which comprises a cable core composed of three internal cores. The cable core is wrapped in an aluminum-alloy linked armor layer, an oversheath is extruded outside the aluminum-alloy linked armor layer, and a flame-retardant glass fiber filling layer is filled between the cable core and the aluminum-alloy linked armor layer. Each internal core comprises an internal conductor, the internal conductor is lapped with a fireproof mica tape, the fireproof mica tape is wrapped in a copper wire layer, and a flame-retardant crosslinked polyethylene layer is extruded outside the copper wire layer. The flame-retardant fireproof aluminum-alloy cable is environmentally-protective and free of pollution; the flame-retardant fireproof aluminum-alloy cable can be continuously produced; the conductors are made of aluminum alloy, the current-carrying performance of aluminum alloy is higher than that of pure aluminum, and the anti-creeping performance of the aluminum alloy is 300% that of the pure aluminum; aluminum alloy tapes are used for linked armoring to ensure that the cable can bear a strong external collapsing force and improve the safety performance; and the flame-retardant fireproof aluminum-alloy cable can be applied to places with a relatively high fire safety level, and has good flame-retardant and fireproof effects during fire hazards.
Description
Technical field
The utility model relates to a kind of electric wire, is a kind of flame-retardant aluminium alloy cable specifically.
Background technology
At home, copper core cable is that people are known the most, and it has almost occupied more than half rivers and mountains in cable market.Copper core cable has the advantages that intensity is high, ampacity is large, can problem be that internal copper resource is congenital rare, market supply and demand contradiction in recent years highlights, and causes the price of copper also to soar all the way, and adds high, the easy robber of the large installation cost of copper cable construction and installation difficulty, the easy shortcoming such as aging.
Utility model content
The purpose of this utility model is in order to overcome the deficiencies in the prior art, provide a kind of rational in infrastructure, can improve useful life and the high aluminium alloy cable of flame-retardant security performance.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of flame-retardant aluminium alloy cable, comprise the cable core being formed by three inner cores, be coated with the chain armour of aluminium alloy in cable core outside, outside at the chain armour of aluminium alloy is extruded with oversheath, between cable core and the chain armour of aluminium alloy, is filled with combustion-proof glass fiber packed layer; Every described inner core comprises inner wire, is surrounded with fire-resistant isinglass belt in the outside of inner wire, is coated with copper wire layer in the outside of fire-resistant isinglass belt, is extruded with flame-retardant crosslinking polyethylene insulated layer in the outside of copper wire layer.
Beneficial effect: compared with prior art, the utility model is environment-friendly type, does not pollute in use procedure, can produce continuously, and production efficiency is high, and material is easy to obtain; Adopt aluminium alloy as conductor, ampacity is higher than fine aluminium, and creep-resistant property is fine aluminium 300%; , wrapped fire-resistant isinglass belt on conductor; Armouring is the chain armouring of aluminum alloy strip, and its linkage structure between layers ensures that cable can stand extraneous powerful destructive power, even when cable suffers larger pressure and impulsive force, cable is also difficult for breakdown, has improved security performance; Oversheath adopts low-smoke halide-free fireproof composite polyolefine material, reaches fire-retardant category-A, fire-resistant I level, applicable to the higher place of security against fire rank, has good flame-retardant effect when breaking out of fire.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of flame-retardant aluminium alloy cable, comprise the cable core being formed by three inner cores, be coated with the chain armour 6 of aluminium alloy in cable core outside, be extruded with corrugated fire retardant polyolefin oversheath 7 in the outside of the chain armour 6 of aluminium alloy, between cable core and the chain armour 6 of aluminium alloy, be filled with combustion-proof glass fiber packed layer 5;
Every described inner core comprises by the stranded aluminium alloy inner wire 1 forming that presses of many aluminum-alloy wires of root, be surrounded with fire-resistant isinglass belt 2 in the outside of aluminium alloy inner wire 1, be coated with the copper wire layer 3 being entwined by many copper wires in the outside of fire-resistant isinglass belt 2, be extruded with flame-retardant crosslinking polyethylene insulated layer 4 in the outside of copper wire layer 3.Wherein, fire-resistant isinglass belt 2 can increase the fire resistance of cable inside; The thickness of flame-retardant crosslinking polyethylene insulated layer 4 is 16.5mm.Though the volume conductance of aluminium alloy inner wire 1 is not as good as copper, in production technology, we adopt the unconventional technology of pressing, and make to press coefficient and reach 0.93, thereby made up the deficiency of aluminium alloy in volume conductance.Increase copper wire layer 3 and can effectively protect the effect of inner wire 1.
The utility model adopts combustion-proof glass fiber packed layer 5, makes cable more when rounding, has more increased the flame-retarding characteristic of cable.Adopt the chain armour 6 of aluminium alloy, its linkage structure between layers, ensures that cable can stand extraneous powerful destructive power, even when cable suffers larger pressure and impulsive force, cable is also difficult for breakdown, has improved security performance.Sheathed structure is isolated from the outside cable simultaneously, even in the time of fire, armour 6 has improved the flame-retardant rank of cable, has reduced the danger coefficient of fire.Adopt fire retardant polyolefin oversheath 7, fire resistance excellence, can reach low smoke and zero halogen rank.
The preferred aluminium alloy AA8030 material of aluminium alloy inner wire 1 in the utility model.
The above is only preferred implementation of the present utility model; it should be pointed out that for the person of ordinary skill of the art, do not departing under the prerequisite of the utility model principle; can also make some modification and improvement, these also should be considered as belonging to protection range of the present utility model.
Claims (6)
1. a flame-retardant aluminium alloy cable, it is characterized in that, comprise the cable core being formed by three inner cores, be coated with the chain armour of aluminium alloy in cable core outside, outside at the chain armour of aluminium alloy is extruded with oversheath, between cable core and the chain armour of aluminium alloy, is filled with combustion-proof glass fiber packed layer; Every described inner core comprises inner wire, is surrounded with fire-resistant isinglass belt in the outside of inner wire, is coated with copper wire layer in the outside of fire-resistant isinglass belt, is extruded with flame-retardant crosslinking polyethylene insulated layer in the outside of copper wire layer.
2. flame-retardant aluminium alloy cable according to claim 1, is characterized in that, described oversheath is corrugated oversheath.
3. flame-retardant aluminium alloy cable according to claim 1, is characterized in that, described oversheath is flame-retardant polyolefin sheathed.
4. flame-retardant aluminium alloy cable according to claim 1, is characterized in that, described inner wire is by the stranded aluminium alloy conductor pressing of many aluminum-alloy wires of root.
5. flame-retardant aluminium alloy cable according to claim 1, is characterized in that: the thickness of described flame-retardant crosslinking polyethylene insulated layer is 16.5mm.
6. flame-retardant aluminium alloy cable according to claim 1, is characterized in that: described copper wire layer is entwined by many copper wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420114021.1U CN203787099U (en) | 2014-03-14 | 2014-03-14 | Flame-retardant fireproof aluminum-alloy cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420114021.1U CN203787099U (en) | 2014-03-14 | 2014-03-14 | Flame-retardant fireproof aluminum-alloy cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203787099U true CN203787099U (en) | 2014-08-20 |
Family
ID=51323260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420114021.1U Expired - Fee Related CN203787099U (en) | 2014-03-14 | 2014-03-14 | Flame-retardant fireproof aluminum-alloy cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203787099U (en) |
-
2014
- 2014-03-14 CN CN201420114021.1U patent/CN203787099U/en not_active Expired - Fee Related
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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: 20140820 Termination date: 20160314 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |