CN204348373U - The fire-retardant aluminium alloy flexible cable of communication power supply - Google Patents
The fire-retardant aluminium alloy flexible cable of communication power supply Download PDFInfo
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- CN204348373U CN204348373U CN201520032585.5U CN201520032585U CN204348373U CN 204348373 U CN204348373 U CN 204348373U CN 201520032585 U CN201520032585 U CN 201520032585U CN 204348373 U CN204348373 U CN 204348373U
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Abstract
The fire-retardant aluminium alloy flexible cable of a kind of communication power supply, belongs to technical field of electric wires and cables.Comprise by conductor and the cable body that formed by the insulating barrier overlayed on outside conductor, described conductor be by the diameter through annealing in process be the naked aluminum-alloy wire of five classes of 0.20-0.45 ㎜ stranded form and sectional area is 1.5-500mm
2the naked aluminum-alloy wire stranded conductor of five classes, insulating barrier is flame-proof polyvinyl chloride, and when cable body is non-armored type cable body, the minimum bending radius of cable body is 4 times of the external diameter being greater than cable body, and when cable body is armored type cable body, the minimum bending radius of cable body is 12 times of the external diameter being greater than cable body.Flexibility improves, and has such as small space, the good adaptability in place of to talk in a roundabout way and so on when cable laying operation; Reduce transport and storage and construction operation cost, alleviate the operation intensity of workmen; Convenient connection; The corrosion resistance of aluminium alloy conductor is better than copper greatly; Ensure use safety.
Description
Technical field
The utility model belongs to technical field of electric wires and cables, is specifically related to the fire-retardant aluminium alloy flexible cable of a kind of communication power supply.
Background technology
Communication power supply flexible cable is a kind of confession electric connection line of communications facility, widely uses in the distribution system at telecommunication bureau station, distribution box cabinet and so on.Communication power supply flexible cable not only requires to have good flexibility, conveniently to lay in narrow space or when similar, and requires to have desirable anti-flammability, to adapt to the instructions for use under the harsh occasion of fire-protection rating.
Technical information about communication power supply flexible cable can be seen in disclosed Chinese patent literature, such as CN201247632Y recommends have that " communication power supply is with fire-retardant, fire-resistant, shielding anti-interference flexible cable ", CN201302849Y provides " a kind of communication power supply flame-retardant refractory flexible electric cable ", CN202230791Y discloses to be had " the flame-retardant crosslinking polyethylene insulated flexible cable of a kind of communication power supply ", CN202720953U introduces to be had " watt form drag combustion shielded flexible cable for communication power supply ", CN202855416U discloses " communication power supply fire-resistant shield flexible cable " and CN202601277U disclosed " a kind of communication power supply flame-retardant flexible electric cable ", etc..
Although the communication power supply flexible cable being not limited to exemplify above respectively has corresponding technique effect, but there is following common shortcoming: one, due to all using stranded thin copper wire as conductor, and this conductor is called five class copper conductors by industry, and thus softness can not meet the desired requirement.And due to pliability difference, bending radius is restricted, thus narrow space, to hinder by immovable object so the occasion at the place of talking in a roundabout way and so on is laid time, very easily affect speed of application; Its two, due to generally select under technology prejudice with copper as the conductor of flexible cable, thus not only there is the blindness of reasonable employment raw material aspect, and cause the manufacturing cost of flexible cable large; Its three, due to heavy weight, the cost thus not only in logistics transportation, storage link is high, and workmen's labour intensity is large in laid processes, to consume cost of labor high.
Substantially identical with the elongation at break of copper conductor based on aluminium alloy conductor, both allowable stress most diverse are little at normal temperatures, yield strength is roughly the same, thus mean that the croop property of aluminium alloy conductor and copper conductor is basically identical, corrosion resistance is better than copper greatly, so relative to copper wire twisting conductor, naked aluminum-alloy wire stranded conductor has higher cost performance, though the density of naked aluminum-alloy wire stranded conductor is about 1/3rd of copper wire stranded conductor, weight is far below copper conductor, but in the current-carrying situation of ad eundem, the cross section of aluminium conductor is larger than copper conductor.Adopt naked aluminum-alloy wire stranded conductor to cause the concern of industry as communication power supply flame retardant cable in view of this, technical scheme described below produces under this background.
Summary of the invention
Task of the present utility model be to provide a kind of contribute to significantly promoting flexibility and use embodiment conveniently lay and promote adaptability when small space is laid, be conducive to embodying excellent creep-resistant property and use and avoid causing lax because of cold flow or creep, be of value to remarkable weight reduction and use and save such as logistics, storage, cable laying operation expense and alleviate the labour intensity of workmen, have and be convenient to adapt with the expansion of cable connector and constriction coefficient and use to facilitate wiring and have and be good at embodying excellent fire resistance and use and ensure the fire-retardant aluminium alloy flexible cable of the communication power supply of use safety.
Task of the present utility model has been come like this, the fire-retardant aluminium alloy flexible cable of a kind of communication power supply, comprise by conductor and the cable body that formed by the insulating barrier overlayed on outside conductor, described conductor be by the diameter through annealing in process be the naked aluminum-alloy wire of five classes of 0.20-0.45 ㎜ stranded form and sectional area is 1.5-500mm
2the naked aluminum-alloy wire stranded conductor of five classes, described insulating barrier is flame-proof polyvinyl chloride, when described cable body is non-armored type cable body, the minimum bending radius of cable body is 4 times of the external diameter being greater than cable body, and when cable body is armored type cable body, the minimum bending radius of cable body is 12 times of the external diameter being greater than cable body.
The outermost layer of five class described in the utility model naked aluminum-alloy wire stranded conductor is that left-hand is stranded, and direction of lay is between layers contrary.
The twisting pitch of five class described in the utility model naked aluminum-alloy wire stranded conductor is 10 ~ 25 times of five classes naked aluminum-alloy wire stranded conductor diameter.
The thickness of insulating barrier described in the utility model is 0.7-2.8 ㎜.
One of technique effect of the technical scheme that the utility model provides, due to have employed by diameter be the naked aluminum-alloy wire of five classes of 0.2-0.45mm stranded form and sectional area is 1.5-500mm
2the naked aluminum-alloy wire stranded conductor of five classes as conductor, thus flexibility is significantly improved, when cable body is non-armored type cable body, minimum bending radius is greater than 4 times of the external diameter of cable body, when cable body is armored type cable body, minimum bending radius is 12 times of the external diameter being greater than cable body, has such as small space, the good adaptability in place of to talk in a roundabout way and so on when cable laying operation; Two, because overall weight is significantly alleviated for copper conductor, be thus conducive to reducing transport and storage and construction operation cost, and the operation intensity of workmen can be alleviated; Three, the Swelling and contraction coefficient being tending towards same cable connector due to Swelling and contraction coefficient matches, and thus can conveniently connect; Four, the corrosion resistance of aluminium alloy conductor is better than copper greatly; Five, because insulating barrier is flame-proof polyvinyl chloride, thus can ensure use safety.
Accompanying drawing explanation
Fig. 1 is the cross sectional representation of example structure of the present utility model.
Embodiment
Refer to Fig. 1, give by conductor 11 and the cable body 1 that formed by the insulating barrier 12 overlayed on outside conductor 11.Technical essential as the technical scheme that the utility model provides: conductor 11 be by the diameter through annealing in process be the naked aluminum-alloy wire of five classes of 0.2-0.45mm stranded form and sectional area is 1.5-500mm
2the naked aluminum-alloy wire stranded conductor of five classes, and insulating barrier 12 is flame-proof polyvinyl chloride, and thickness is 0.7-2.8 ㎜.
The direction of lay between layers of the naked aluminum-alloy wire stranded conductor of above mentioned five class is: it is stranded that outermost layer should be left-hand, and the direction of lay between each layer keeps contrary, be 10 ~ 25 times of five classes naked aluminum-alloy wire stranded conductor diameter by twisting pitch control in stranding process, be 15 ~ 25 times preferably, be 15 ~ 20 times better, be preferably 18 times, the present embodiment selects 18 times.
The communication power supply obtained by embodiment of the present utility model is 450 ~ 750V and 600 ~ 1000V with the rated operational voltage of fire-retardant aluminium alloy flexible cable; Long-term work adaptive temperature is :-20 DEG C ~ 70 DEG C; Minimum bending radius is four to ten five times of the outside diameter of cable, wherein, when cable body 1 is non-armored type cable body, then minimum bending radius is greater than 4 times of the external diameter of cable body 1, when cable body 1 is armored type cable body, then the minimum bending radius of cable body 1 is greater than 12 times of the external diameter of cable body 1.
A known class in the conductor 11 (i.e. five classes naked aluminum-alloy wire stranded conductor) that the utility model is recommended and wires and cables industry and two class aluminium conductors have substantial and are difficult to the difference come to realize by those of skill in the art, because a known class and two class aluminium conductors are commonly a class duralumin conductor and two class duralumin conductors in wires and cables industry.But, the utility model adopts 5 classes (five classes) ultrafine aluminum alloy monofilament is stranded and forms, namely aforesaid diameter is adopted to be the naked aluminum-alloy wire stranded conductor of five classes of 0.2-0.45 ㎜, the conductor 11 of this structure is in space state up to now in China's wires and cables industry, and there is no national standard and/or industry standard can be followed, the applicant is applied to the cable of communication power supply, has the positive effect being confirmed the technique effect referred in superincumbent technique effect hurdle.
The relation preferably but between the radical of the cross section of be not limited to 18 kinds of specifications, the naked aluminum-alloy wire of five classes, the diameter of the naked aluminum-alloy wire monofilament of five classes and the thickness of insulating barrier 12 of above-mentioned conductor 11 is by shown in following table:
The cable body 1 of above-described embodiment 1 to 18 is non-armored type cable body, and after tested, minimum bending radius is all greater than 4 times of the diameter of cable body 1.
Claims (4)
1. the fire-retardant aluminium alloy flexible cable of communication power supply, comprise by conductor (11) with by the cable body (1) overlaying on conductor (11) insulating barrier outward (12) and form, it is characterized in that described conductor (11) be by the diameter through annealing in process be the naked aluminum-alloy wire of five classes of 0.20-0.45 ㎜ stranded form and sectional area is 1.5-500mm
2the naked aluminum-alloy wire stranded conductor of five classes, described insulating barrier (12) is flame-proof polyvinyl chloride, when described cable body (1) is for non-armored type cable body, the minimum bending radius of cable body (1) is for being greater than 4 times of the external diameter of cable body (1), and when cable body (1) is for armored type cable body, the minimum bending radius of cable body (1) is for being greater than 12 times of the external diameter of cable body (1).
2. the fire-retardant aluminium alloy flexible cable of communication power supply according to claim 1, is characterized in that the outermost layer of described five classes naked aluminum-alloy wire stranded conductor is that left-hand is stranded, and direction of lay is between layers contrary.
3. the fire-retardant aluminium alloy flexible cable of communication power supply according to claim 1 and 2, is characterized in that the twisting pitch of described five classes naked aluminum-alloy wire stranded conductor is 10 ~ 25 times of five classes naked aluminum-alloy wire stranded conductor diameter.
4. the fire-retardant aluminium alloy flexible cable of communication power supply according to claim 1, is characterized in that the thickness of described insulating barrier (12) is 0.7-2.8 ㎜.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520032585.5U CN204348373U (en) | 2015-01-17 | 2015-01-17 | The fire-retardant aluminium alloy flexible cable of communication power supply |
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| CN201520032585.5U CN204348373U (en) | 2015-01-17 | 2015-01-17 | The fire-retardant aluminium alloy flexible cable of communication power supply |
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| CN204348373U true CN204348373U (en) | 2015-05-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104575732A (en) * | 2015-01-17 | 2015-04-29 | 中利科技集团股份有限公司 | Flame-retardant aluminum alloy flexible cable for communication power supply |
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2015
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104575732A (en) * | 2015-01-17 | 2015-04-29 | 中利科技集团股份有限公司 | Flame-retardant aluminum alloy flexible cable for communication power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningxia Zhongli Technology Co., Ltd. Assignor: Zhongli Science & Technology Group Co., Ltd. Contract record no.: 2016320000153 Denomination of utility model: Flame-retardant aluminum alloy flexible cable for communication power supply Granted publication date: 20150520 License type: Common License Record date: 20160527 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215542 Jiangsu city in Suzhou Province, Southeast of Changshu Economic Development Zone No. 8 Chang kunlu Patentee after: Jiangsu Zhongli group Limited by Share Ltd Address before: 215542 Jiangsu city in Suzhou Province, Southeast of Changshu Economic Development Zone No. 8 Chang kunlu Patentee before: Zhongli Science & Technology Group Co., Ltd. |