CN202110870U - Seven segmentation conductor of cross section with an area of 3500 mm2 of cable copper core - Google Patents
Seven segmentation conductor of cross section with an area of 3500 mm2 of cable copper core Download PDFInfo
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- CN202110870U CN202110870U CN2011202177775U CN201120217777U CN202110870U CN 202110870 U CN202110870 U CN 202110870U CN 2011202177775 U CN2011202177775 U CN 2011202177775U CN 201120217777 U CN201120217777 U CN 201120217777U CN 202110870 U CN202110870 U CN 202110870U
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- conductor
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- cable
- copper core
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Abstract
The utility model discloses a seven segmentation conductor of a cross section with an area of 3500 mm2 of a cable copper core, comprising a conductor composed of six segmentation blocks of the same cross section area and a centrally intertwisted unit. Wrinkle insulation paper is arranged between the six segmentation blocks and the centrally intertwisted unit; the segmentation blocks surround the centrally intertwisted unit in combination in a left to right intertwisted cabling manner; and nylon belts of semiconduction are successively wound around a peripheral conductor. The problem of a bad usage effect under a relatively high environmental temperature is overcome by the utility model; a cable cross section area is increased, so that the cross section area of a cable copper core achieves 3500 mm2; at the same time, the segmentation conductor form is adopted; thus the structure of a large cross section conductor of a copper core is more disperse; loss heating of a conductor is effectively reduced; influence of skin effect on cable current transmission is reduced; current-carrying capacity of a conductor is increased; and practicality of a cable is thus increased.
Description
Technical field:
The utility model relates to the electric power transfer field, particularly a kind of cable copper core cross section 3500mm that is used for the conveying of big capacity high electric energy
27 milliken conductors.
Background technology:
In the at present domestic and international cable conductor standard, the copper max core stranded conductor of regulation is 2000 mm in the national standard (GB3956)
2, the copper max core stranded conductor of regulation is 2500 mm in the IEC standard (IEC60228)
2Along with Chinese national economy grows continuously and fast and the improving constantly of people's living standard, nowadays industry-by-industry is increasing to the demand of electric power, and electricity needs increases severely, and electric power facility is towards big capacity (high voltage, big electric current) transmission direction development.Therefore, improve transmission voltage grade and the sectional area that increases the transmission line cable conductor, become the common recognition of power industry.
When alternating current passes through conductor, electric current will concentrate on conductive surface and flow through, and this phenomenon is kelvin effect.Because the ac cable transmission is AC energy; So in the transmission course of energy, can produce " kelvin effect "; Be curtage when in conductor, conducting, can be gathered in total conductor top layer, but not be evenly distributed in the sectional area of whole conductor with the higher electronics of frequency.Thereby increased the electric energy loss of cable transmission line, reduced the transmission capacity of cable.Traditional milliken conductor is four to cut apart or five milliken conductors, and the milliken conductor of this structure is 2500 mm in copper core conductor cross section
2Can reduce " kelvin effect " of cable when following effectively.But when the cross section of conductor reaches 3000 mm
2And when above, four cut apart or the conductor of five segmenting structures is not clearly to the effect of restraining " kelvin effect ".
For example, application number is " 200920080645.5 ", and publication number is that the Chinese patent of " 201402665Y " discloses " mesohigh fire-resisting cable "; The utility model discloses a kind of mesohigh fire-resisting cable, aim to provide a kind of extraordinary mesohigh fire-resisting cable with good electric property and good fire-resistance property.The core of cable is coated with mica tape, band, flame-proof silicon rubber layer, vertical alclad alloy band and sheath outward successively; Between core and mica tape, flame-retardant filler is set.This kind cable is particularly suitable for skyscraper, underground railway, undergrond street, large-scale power station and the important places relevant with fire safety and fire-extinguishing and lifesaving such as industrial and mining enterprises, under the flame combustion situation, can keep 90 minutes safe operation.But this patent has been because the scope of application has received the high limit of carrying voltage, exists bad and receive the serious problem of " kelvin effect " influence in the higher use occasion result of use of ambient temperature.
The utility model content:
The purpose of the utility model is to overcome above-mentioned deficiency, proposes a kind of cable copper core cross section 3500mm
27 milliken conductors.The utility model has overcome in the higher bad problem of use occasion result of use of ambient temperature, has realized the increase cross-section of cable, makes cable copper core cross section reach 3500mm
2, adopt the milliken conductor form simultaneously, the structure of copper core large size conductor is more disperseed; Reduced the loss heating of conductor effectively; Reduced " kelvin effect " influence, increased the ampacity of conductor, thereby also improved the practicality of cable the cable current transmission.
The utility model adopts following technical scheme to realize:
Cable copper core cross section 3500mm
27 milliken conductors; It is characterized in that: include the conductor that the stranded unit combination of split share piece and center of six same cross-sectional forms; Be provided with the wrinkle insulating paper between said six split share pieces and the stranded unit, center; Said split share piece combination is pressed the stranded stranding of left-hand around stranded unit, center, and said conductor periphery is surrounded with semiconductive nylon tape successively.
Cross section, stranded unit, said center is 110-120mm
2, split share piece cross section is 560-570 mm
2
The radian of said split share piece is the 50-70 degree.
The cross section of said split share piece is fan-shaped.
The advantage of the utility model is:
1, the utility model adopts the conductor that the stranded unit combination of split share piece and center that six same cross-sectional are arranged forms, and has realized the increase cross-section of cable, makes cable copper core cross section reach 3500mm
2, adopt the milliken conductor form simultaneously, the structure of copper core large size conductor is more disperseed, reduced the loss heating of conductor effectively, reduced " kelvin effect " influence to the cable current transmission, increased the ampacity of conductor.
2, the utility model employing cross section, stranded unit, center is 110-120mm
2, split share piece cross section is 560-570 mm
2The radian of split share piece is the 50-70 degree, and the cross section of split share piece is fan-shaped; Make the single monomer all level and smooth stranded mould of entering when stranding of cutting apart, each tension force of cutting apart core can accurately be controlled, simultaneously when stranding each phase place of cutting apart core automatically adjustment make milliken conductor profile rounding more to guarantee the stranding precision.
Description of drawings
Fig. 1 is the utility model structural representation
Be labeled as among the figure: 1, split share piece, 2, stranded unit, center, 3, the wrinkle insulating paper, 4, semiconductive nylon tape.
Embodiment
Embodiment 1:
A kind of cable copper core cross section 3500mm
27 milliken conductors; Include the split share piece 1 of six same cross-sectional and the conductor that stranded unit 2, center combines; Said six split share pieces 1 and center are provided with wrinkle insulating paper 3 between the stranded unit 2; Said split share piece 1 combination is pressed the stranded stranding of left-hand around stranded unit 2, center, and said conductor periphery is surrounded with semiconductive nylon tape 4 successively.
In the utility model, 2 cross sections, stranded unit, said center are 110mm
2, split share piece 1 cross section is 560 mm
2The radian of said split share piece 1 is 50 degree; The cross section of said split share piece 1 is fan-shaped.
The utility model uses 91 dishes, 630 frame winch equipment in use, goes out stranded unit 2, center with the copper monofilament is stranded; Through this frame winch equipment; Utilize preparatory spiral to press wheel; The stranded fan-segmentation thigh piece 1 that goes out to have radian; Through 4000mm dish winch equipment, stranded unit, center 2 conductor draw drums are positioned over above the 1600mm rotation pay off rack, six fan-segmentation piece 1 conductor draw drums are positioned over above the 2240mm rotation pay off rack.Stranded unit, center 2 conductors are placed in the middle; Six fan-segmentation piece 1 combinations are pressed the stranded stranding of left-hand around stranded unit 2, center; Wrinkle insulating paper 3 is spaced apart with center stranded unit 2 conductors and six fan-segmentation pieces 1 through the paper tape guidance system; The correction of the phase tracking system through equipment, the wrapped successively semiconductive nylon tape of conductor periphery.
Embodiment 2:
A kind of cable copper core cross section 3500mm
27 milliken conductors; Include the split share piece 1 of six same cross-sectional and the conductor that stranded unit 2, center combines; Said six split share pieces 1 and center are provided with wrinkle insulating paper 3 between the stranded unit 2; Said split share piece 1 combination is pressed the stranded stranding of left-hand around stranded unit 2, center, and said conductor periphery is surrounded with semiconductive nylon tape 4 successively.
In the utility model, 2 cross sections, stranded unit, said center are 115mm
2, split share piece 1 cross section is 565 mm
2The radian of said split share piece 1 is 60 degree; The cross section of said split share piece 1 is fan-shaped.
The utility model is positioned over stranded unit, center 2 conductor draw drums above the 1600mm rotation pay off rack in use, and six fan-segmentation piece 1 conductor draw drums are positioned over above the 2240mm rotation pay off rack.
Embodiment 3:
A kind of cable copper core cross section 3500mm
27 milliken conductors; Include the split share piece 1 of six same cross-sectional and the conductor that stranded unit 2, center combines; Said six split share pieces 1 and center are provided with wrinkle insulating paper 3 between the stranded unit 2; Said split share piece 1 combination is pressed the stranded stranding of left-hand around stranded unit 2, center, and said conductor periphery is surrounded with semiconductive nylon tape 4 successively.
In the utility model, 2 cross sections, stranded unit, said center are 120mm
2, split share piece 1 cross section is 570 mm
2The radian of said split share piece 1 is 70 degree; The cross section of said split share piece 1 is fan-shaped.
The utility model is positioned over stranded unit, center 2 conductor draw drums above the 1600mm rotation pay off rack in use, and six fan-segmentation piece 1 conductor draw drums are positioned over above the 2240mm rotation pay off rack.
Claims (4)
1. cable copper core cross section 3500mm
27 milliken conductors; It is characterized in that: include the conductor that the stranded unit of split share piece (1) and center (2) of six same cross-sectional combines; Be provided with wrinkle insulating paper (3) between the stranded unit of said six split share pieces (1) and center (2); Said split share piece (1) combination is pressed the stranded stranding of left-hand around stranded unit, center (2), and said conductor periphery is surrounded with semiconductive nylon tape (4) successively.
2. cable copper core cross section 3500mm according to claim 1
27 milliken conductors, it is characterized in that: cross section, stranded unit, said center (2) is 110-120mm
2, split share piece (1) cross section is 560-570 mm
2
3. cable copper core cross section 3500mm according to claim 1
27 milliken conductors, it is characterized in that: the radian of said split share piece (1) is the 50-70 degree.
4. according to claim 2 or 3 described cable copper core cross section 3500mm
27 milliken conductors, it is characterized in that: the cross section of said split share piece (1) is fan-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202177775U CN202110870U (en) | 2011-06-24 | 2011-06-24 | Seven segmentation conductor of cross section with an area of 3500 mm2 of cable copper core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202177775U CN202110870U (en) | 2011-06-24 | 2011-06-24 | Seven segmentation conductor of cross section with an area of 3500 mm2 of cable copper core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202110870U true CN202110870U (en) | 2012-01-11 |
Family
ID=45436324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202177775U Expired - Lifetime CN202110870U (en) | 2011-06-24 | 2011-06-24 | Seven segmentation conductor of cross section with an area of 3500 mm2 of cable copper core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202110870U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347104A (en) * | 2011-06-24 | 2012-02-08 | 四川明星电缆股份有限公司 | 7 split conductor with cable copper core section of 3500mm<2> and manufacturing method thereof |
| CN104376912A (en) * | 2014-11-27 | 2015-02-25 | 国家电网公司 | Large-section power cable conductor low in skin effect |
| CN105632649A (en) * | 2014-10-30 | 2016-06-01 | 国家电网公司 | Preparation process of partitioned cable with large cross section |
-
2011
- 2011-06-24 CN CN2011202177775U patent/CN202110870U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347104A (en) * | 2011-06-24 | 2012-02-08 | 四川明星电缆股份有限公司 | 7 split conductor with cable copper core section of 3500mm<2> and manufacturing method thereof |
| CN102347104B (en) * | 2011-06-24 | 2013-06-12 | 四川明星电缆股份有限公司 | 7 split conductor with cable copper core section of 3500mm<2> and manufacturing method thereof |
| CN105632649A (en) * | 2014-10-30 | 2016-06-01 | 国家电网公司 | Preparation process of partitioned cable with large cross section |
| CN104376912A (en) * | 2014-11-27 | 2015-02-25 | 国家电网公司 | Large-section power cable conductor low in skin effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 18 Yingbin Avenue, Leshan Hi-tech Development Zone, Sichuan 614000 Patentee after: Shang Wei Limited by Share Ltd Address before: No. 18 Yingbin Avenue, Leshan Hi-tech Development Zone, Sichuan 614000 Patentee before: Sichuan Mingxing Cable Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120111 |
|
| CX01 | Expiry of patent term |