CN103390469B - The synchronous stranding method of Optical Fiber composite overhead Ground Wire stranding - Google Patents
The synchronous stranding method of Optical Fiber composite overhead Ground Wire stranding Download PDFInfo
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- CN103390469B CN103390469B CN201310319329.XA CN201310319329A CN103390469B CN 103390469 B CN103390469 B CN 103390469B CN 201310319329 A CN201310319329 A CN 201310319329A CN 103390469 B CN103390469 B CN 103390469B
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Abstract
<b> the invention discloses the synchronous stranding method of a kind of Optical Fiber composite overhead Ground Wire stranding, its stranding method is the common equidirectional strand outside line layer of internal layer cage and outer cage, forms the Optical Fiber composite overhead Ground Wire of three layers of super-section.The stranding of the present invention synchronously method of twisting can be used for the stranding of skin more than three layers of super-section </b><bGreatT.Gre aT.GTOPGW</b><bG reatT.GreaT.GT of </b><bGreatT.Gre aT.GT18</b><bGre atT.GreaT.GT root electric unit; With the structure comparison of prior art; three-decker can better protect </b><bGreatT.Gre aT.GTOP</b><bGre atT.GreaT.GT to manage; resist the damage of being struck by lightning and may causing, meet the requirement of superhigh pressure large span circuit high strength height short-circuit current capability.</b>
Description
Technical field
the present invention relates to communication technical field, be specifically related to a kind of optical cable, particularly the synchronous stranding method of Optical Fiber composite overhead Ground Wire stranding.
Background technology
optical cable, OpticalFiberCompositeOverheadGroundWire(also claims Optical Fiber composite overhead Ground Wire), optical fiber is placed in the ground wire of aerial high voltage power line, in order to form the fiber optic communication network on transmission line, this version has ground wire and communication dual-use function concurrently, is generally called OPGW optical cable.
along with the great development of world economy, energy strategy becomes the emphasis of various countries' development, and ultra high voltage is the important directions of energy conveying and electric power development.Ultra high voltage is compared with traditional electrical network, has obvious advantage, and its transmission capacity is larger, and fed distance is farther, and loss is also lower, builds extra high voltage line and can also save transmission of electricity corridor in a large number.And as UHV transmission line important composition part one of Optical Fiber composite overhead Ground Wire, superhigh pressure performance is by one of direction becoming Future Development.And Optical Fiber composite overhead Ground Wire design in little cable footpath can not meet the requirement of superhigh pressure project to short-circuit current capability, therefore in the type selecting of Optical Fiber composite overhead Ground Wire, the large short-circuit current capability of general selection, heavy in section have amassed the structure of OPGW.
oPGW stranding method of the prior art comprises the steps: that 1. release single, central reinforcement by center pay off rack; 2. central reinforce member is through internal layer cage central shaft, and mostly is 12 electric units most and light unit is twisted into interior twisted wire layer at internal layer stranded head place; 3. in, twisted wire layer is through outer cage central shaft, and mostly is 18 electric units most and is twisted into outer twisted wire layer at skin stranded head place.
existing stranding technology can only once the stranded OPGW(mostly being the little cable footpath of double-deck (outer electric unit quantity is no more than 18) most see Fig. 1), and can not meet the requirement of heavy in section OPGW.
oPGW for Fig. 3: if utilize existing stranding technology, its stranding step comprises: 1. by the first stranding of common process as the OPGW of Fig. 1 structure, 2. be interior twisted wire layer with this OPGW, at the outer twisted wire layer of stranded maximum 18 electric units of skin, (because skin is 20 electric units, also lack 2 electric units), 3. so the stranding twisted also will stranding again, to mend strand 2 electric units; Therefore, the heavy in section OPGW of art methods stranding preparation as Fig. 3 is adopted to need altogether just can complete through 3 strandings.Adopt prior art stranding heavy in section OPGW, not only extend manufacture cycle, expend more manpower and materials, and add the inconsistent hidden danger of quality of formed product rate.
Summary of the invention
technical problem to be solved by this invention is to overcome the technical problem existed in prior art, provides a kind of new Optical Fiber composite overhead Ground Wire stranding method.
in order to solve above-mentioned technical problem, technical scheme of the present invention is: the synchronous stranding method of a kind of Optical Fiber composite overhead Ground Wire stranding, is characterized in that, comprise the steps:
(1) by traction wheel, internal layer cage, the electric unit of ground floor and light unit are stranded in around central reinforce member clockwise, meanwhile by outer cage, second layer electric unit is stranded counterclockwise, form double-deck interior twisted wire layer; This interior twisted wire layer cross-sectional structure as shown in Figure 1,
(2) secondary stranding: released twisted wire layer and N root internal layer cage monofilament in the bilayer twisted in step (1) by center pay off rack and directly pass the central shaft of outer cage; Meanwhile, the outer electric unit K root monofilament that the stranded head of skin of outer cage draws and aforesaid internal layer cage monofilament merge in outer stranded head place, jointly the electric unit of more than 18 are twisted into outer twisted wire layer.
preferably, the internal layer cage in described step (2) and outer cage direction of lay are identical.
preferably, N=2 ~ 10 in described step (2).
preferably, K=10 ~ 18 in described step (2).
in the cabling process of prior art: internal layer cage strand internal layer, outer cage strand is outer, and direction of lay is contrary, and OPGW stranding method of the present invention to be internal layer cage and outer cage twist outside line layer jointly, so direction of lay must be identical, be therefore called synchronous strand.
technological difficulties of the present invention comprise:
1. stranding process overall cooperation before and after being, so the stranded synchronism of ectonexine cage must be consistent, slightly deviation, inside and outside asynchronous, then internal layer monofilament is stranded voluntarily, stressedly breaks.
should be noted the control of monofilament laying tension, back twist, preforming and twisting pitch, guarantee even tension, make the unlikely tensile elongation of stainless steel tube or distortion and even break.
utilize the monofilament of internal layer frame to have to pass through in the central shaft of outer cage, length about 30 meters, lead-in wire difficulty increases.
the advantage of the synchronous stranding method of stranding of the present invention is:
1. the OPGW skin of traditional handicraft stranding is all no more than 18 electric units; And stranding of the present invention synchronously the method for twisting can be used for the stranding of skin more than three layers of super-section OPGW of 18 electric units; With the structure comparison of prior art, three-decker can better protect OP to manage, and resists the damage of being struck by lightning and may causing, meets the requirement of superhigh pressure large span circuit high strength height short-circuit current capability.
when frame has damage, optical cable outer stranding in non-Hawser footpath also can use the synchronous twisted synthesizing cable of ectonexine.
Accompanying drawing explanation
fig. 1 is the OPGW structural representation of prior art.
fig. 2 is the cabler structural representation for the synchronous stranding method of Optical Fiber composite overhead Ground Wire stranding of the present invention.
fig. 3 is the stranded OPGW optical cable generalized section obtained of method of the present invention.
wherein, reinforcement centered by 1,2 is interior twisted wire layer, 21 is light unit, and 22 is ground floor electric unit, and 23 is second layer electric unit, 3 is outer twisted wire layer, and 31 is outer electric unit, pay off rack centered by 4,5 is traction wheel, 6 is internal layer cage, and 7 is the stranded head of internal layer, and 8 is outer cage, 9 is outer stranded head, and 10 is take-up stand.
Embodiment
below in conjunction with drawings and Examples, the invention will be further described: the synchronous stranding method of a kind of Optical Fiber composite overhead Ground Wire stranding, comprises step:
(1) by traction wheel, internal layer cage, the electric unit 22 of ground floor and light unit 21 are stranded in around central reinforce member 1 clockwise, meanwhile by outer cage, second layer electric unit 23 is stranded counterclockwise, form double-deck interior twisted wire layer 2; This interior twisted wire layer 2 cross-sectional structure as shown in Figure 1,
(2) secondary stranding: released electric unit monofilament in the bilayer twisted in step (1) on twisted wire layer and 6 internal layer cages 6 by center pay off rack 4 directly through the central shaft of outer cage 8; Meanwhile, on the skin stranded 9 of outer cage 8,14 outer electric unit monofilament of traction and 6 monofilament of aforesaid internal layer cage 6 merge in outer stranded 9 places, jointly the electric unit of 20 is twisted into outer twisted wire layer 3, and internal layer cage 6 and outer cage 8 direction of lay are identical, stranded good super-section OPGW is drawn to take-up stand 10 through traction wheel 5, and the stranded OPGW optical cable section obtained as shown in Figure 3.
more than show and describe general principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not by the restriction of above-mentioned example; what describe in above-mentioned example and specification just illustrates principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection range is defined by appending claims and equivalent thereof.
Claims (4)
1. the synchronous stranding method of Optical Fiber composite overhead Ground Wire stranding, is characterized in that, comprise the steps:
(1) by traction wheel, internal layer cage, the electric unit of ground floor and light unit are stranded in around central reinforce member clockwise, meanwhile by outer cage, second layer electric unit is stranded counterclockwise, form double-deck interior twisted wire layer;
(2) secondary stranding: released twisted wire layer and N root internal layer cage monofilament in the bilayer twisted in step (1) by center pay off rack and directly pass the central shaft of outer cage; Meanwhile, the outer electric unit K root monofilament that the stranded head of skin of outer cage draws and aforesaid internal layer cage monofilament merge in outer stranded head place, jointly the electric unit of more than 18 are twisted into outer twisted wire layer.
2. the synchronous stranding method of Optical Fiber composite overhead Ground Wire stranding according to claim 1, is characterized in that, the internal layer cage in described step (2) and outer cage direction of lay are identical.
3. the synchronous stranding method of Optical Fiber composite overhead Ground Wire stranding according to claim 1, is characterized in that, N=2 ~ 10 in described step (2).
4. the synchronous stranding method of Optical Fiber composite overhead Ground Wire stranding according to claim 1, is characterized in that, K=10 ~ 18 in described step (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310319329.XA CN103390469B (en) | 2013-07-26 | 2013-07-26 | The synchronous stranding method of Optical Fiber composite overhead Ground Wire stranding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310319329.XA CN103390469B (en) | 2013-07-26 | 2013-07-26 | The synchronous stranding method of Optical Fiber composite overhead Ground Wire stranding |
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| CN103390469A CN103390469A (en) | 2013-11-13 |
| CN103390469B true CN103390469B (en) | 2016-01-13 |
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| CN111273414B (en) * | 2020-01-20 | 2021-04-13 | 杭州富通通信技术股份有限公司 | Method for manufacturing super multi-core optical cable and bundling equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3823536A (en) * | 1972-06-22 | 1974-07-16 | G Stricker | Method of twisting elements to form an electrical cable having a twist whose direction alternates from section to section |
| CN1969344A (en) * | 2004-06-17 | 2007-05-23 | 3M创新有限公司 | Cable and method of making the same |
| CN101572136A (en) * | 2009-03-18 | 2009-11-04 | 何如森 | Process for preparing signal transmission cable conductor of aeronautical equipment |
| CN101834012A (en) * | 2010-04-23 | 2010-09-15 | 无锡华能电缆有限公司 | High-conductivity hard aluminum wire and manufacture method thereof |
| CN201600934U (en) * | 2009-11-04 | 2010-10-06 | 特变电工股份有限公司 | Strengthened core expanded diameter conductor |
| CN201877158U (en) * | 2010-12-17 | 2011-06-22 | 广东吉青电缆实业有限公司 | High-conductivity and ultrahigh-strength 10kV overhead insulated cable |
-
2013
- 2013-07-26 CN CN201310319329.XA patent/CN103390469B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3823536A (en) * | 1972-06-22 | 1974-07-16 | G Stricker | Method of twisting elements to form an electrical cable having a twist whose direction alternates from section to section |
| CN1969344A (en) * | 2004-06-17 | 2007-05-23 | 3M创新有限公司 | Cable and method of making the same |
| CN101572136A (en) * | 2009-03-18 | 2009-11-04 | 何如森 | Process for preparing signal transmission cable conductor of aeronautical equipment |
| CN201600934U (en) * | 2009-11-04 | 2010-10-06 | 特变电工股份有限公司 | Strengthened core expanded diameter conductor |
| CN101834012A (en) * | 2010-04-23 | 2010-09-15 | 无锡华能电缆有限公司 | High-conductivity hard aluminum wire and manufacture method thereof |
| CN201877158U (en) * | 2010-12-17 | 2011-06-22 | 广东吉青电缆实业有限公司 | High-conductivity and ultrahigh-strength 10kV overhead insulated cable |
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