CN103353643A - 8-shaped self-supporting multi-core optical cable - Google Patents
8-shaped self-supporting multi-core optical cable Download PDFInfo
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- CN103353643A CN103353643A CN2013102331803A CN201310233180A CN103353643A CN 103353643 A CN103353643 A CN 103353643A CN 2013102331803 A CN2013102331803 A CN 2013102331803A CN 201310233180 A CN201310233180 A CN 201310233180A CN 103353643 A CN103353643 A CN 103353643A
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Abstract
The invention relates to an 8-shaped self-supporting multi-core optical cable comprising an upper sheath (1), suspension wires (4), a lower sheath (2), cable cores (9) and a centre reinforcement core (7). The upper sheath (1) is internally filled with at least one suspension wires (4); the upper sheath (1) and the lower sheath (2) are connected to form an integral structure, the cross section of which is in an 8-shaped structure, through a connection portion (3); the upper sheath (1), the lower sheath (2) and the connection portion (3) are integrated through low-smoke zero-halogen flame-retardant materials; the center of the lower sheath (2) is provided with the centre reinforcement core (7); the lower sheath (2) is internally provided with a water-blocking layer (5), an armor layer (6) and a yarn layer (10) in sequence; a plurality of cable cores (9) are distributed between the inner wall of the yarn layer (10) and the centre reinforcement core (7) in a juxtaposition manner; and a loose tube (8) is coated outside each cable core (9). The advantages of the multi-core optical cable are that: the multi-core optical cable exhibits high self-supporting strength, and facilitates overhead or indoor laying; besides, signal transmission is stable.
Description
Technical field
The present invention relates to a kind of optical cable, particularly a kind of 8-shaped self supporting type multi-core optical cable.
Background technology
Fiber To The Building to FTTB(along with photoelectric communication), the FTTO(Fiber-To-The-Office), FTTH(fiber-to-the-home front yard) etc. the development of direction, butterfly optical cable is used in Access Network in a large number.For simplifying construction maintenance, a kind of self-bearing type butterfly optical cable that can use at indoor and outdoors simultaneously is widely used; Outdoor section its can be used as that self-support cable is built on stilts to be used; Before optical cable is registered one's residence the messenger wire element cut off and be fixed on the special-purpose fixator, the residue optical cable removes and becomes butterfly optical cable behind the messenger wire element and introduce indoorly, cooperates fast connecting joint or optical fiber cold joint to use.Traditional butterfly optical cable lays inconvenience, and difficulty of construction is higher, and self-supporting intensity is lower.
Chinese patent application number: 201220363366.1 disclose a kind of photoelectricity mixing ripple cable; comprise optical communication element, communication unit and oversheath; this optical communication element comprises at least one pair of fiber cores; this communication unit comprises at least one electronic communication link; its carrying of the ripple cable of this structure and resistance to tension are poor; the cable major part is exposed in the extraneous air, and after through long-term exposing to the sun and rain, the protective effect that the outer jacket of cable plays is little.
Chinese patent application number: the overcoat that the 97125428.1 reinforcement optical cables that disclose a kind of single tube structure have an optical fiber protective tube, some reinforcements and a surrounding tube is characterized in that described protection tube is a kind of bellows-like structure.This structure optical cable only has an optical fiber, be not suitable for integrated communication system, and optical signal transmission is unstable.
Summary of the invention
The object of the invention is to overcome the shortcoming of prior art, provide a kind of self-supporting intensity high, be convenient to the built on stilts or indoor 8-shaped self supporting type multi-core optical cable that lays with stable signal transmission.
Purpose of the present invention is achieved through the following technical solutions: a kind of 8-shaped self supporting type multi-core optical cable, it comprises upper jacket, messenger wire, lower jacket, cable core and middle strengthening core, upper jacket inside is filled with at least one messenger wire, upper jacket and lower jacket connect into the monolithic construction that xsect is the figure of eight by connecting portion, strengthening core in the middle of the center of lower jacket is provided with, the inside of lower jacket is set with water blocking layer, armor and bundle layer successively, pricks between layer inwall and the middle strengthening core and is distributed with side by side many cable cores.
The outside of described each root cable core is coated with loose sleeve pipe.
Described upper jacket, lower jacket and connecting portion are one-body molded through halogen-free low-smoke flame retardant material.
Described armor is by steel band or aluminium strip bundling shaping.
Described messenger wire is many stranded the forming of steel strand wires.
The present invention has the following advantages:
1, is provided with the many stranded messenger wires that form of steel strand wires in upper jacket inside, can bear the most of weight of optical cable, centre bit at lower jacket is equipped with middle strengthening core, and is provided with the armor of steel band or aluminium strip bundling shaping in lower jacket, and the self-supporting ability of optical cable increases substantially.
2, messenger wire and optical cable are combined with each other by sheath, when built on stilts laying, do not need to lay in addition messenger wire, and the messenger wire sheath of messenger wire outside can prevent effectively that messenger wire is by airborne moisture corrosion, and when indoor laying, armor can effectively prevent mouse destruction cable, lays conveniently.
3, the center strengthening core around be distributed with the optical fiber that multi-ribbon has loose sleeve pipe, it is complete that its signal keeps, the optical attenuation amplitude is little, stable signal transmission.
Description of drawings
Fig. 1 is structural representation of the present invention;
Among the figure: the 1-upper jacket, the 2-lower jacket, the 3-connecting portion, the 4-messenger wire, the 5-water blocking layer, strengthening core in the middle of the 6-armor, 7-, 8-pine sleeve pipe, the 9-cable core, 10-pricks layer.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing, but protection scope of the present invention is not limited to the following stated.
As shown in Figure 1, a kind of 8-shaped self supporting type multi-core optical cable, it comprises upper jacket 1, messenger wire 4, lower jacket 2, cable core 9 and middle strengthening core 7, upper jacket 1 inside is filled with at least one messenger wire 4, messenger wire 4 is many stranded the forming of steel strand wires, upper jacket 1 connects into the monolithic construction that xsect is the figure of eight with lower jacket 2 by connecting portion 3, strengthening core 7 in the middle of the center of lower jacket 2 is provided with, the inside of lower jacket 2 is set with successively water blocking layer 5, armor 6 and pricks layer 10, pricks between layer 10 inwalls and the middle strengthening core 7 and is distributed with side by side many cable cores 9.
The outside of described each root cable core 9 is coated with loose sleeve pipe 8.
Described upper jacket 1, lower jacket 2 and connecting portion 3 are one-body molded through halogen-free low-smoke flame retardant material.
Described armor 6 is by steel band or aluminium strip bundling shaping.
Optical cable is stretched, after the flattening, punching press, crooked every mechanical test whole optical fiber of (wherein testing tensile force is 500N, and flat pressure is 1200N/100mm) optical cable do not rupture, do not damage, unattenuated, protective sleeve is without visual visible crackle.In withstand voltage test, add and hold under the condition that voltage is the 1500V AC power, 1 minute duration, insulator is without punch-through.
Be the optical cable of 1310nm for operation wavelength, its optical attenuation is not more than 0.4dB/km, be the butterfly cable of 1550nm for operation wavelength, its optical attenuation is not more than 0.3dB/km, and operating temperature range is-20 ℃～40 ℃, can adapt to various abominable working environments, its dynamic minimum bending radius is 20 times of diameter lengths, and static minimum bending radius is 10 times of radius length, when butterfly optical cable is the self-bearing type structure, after branch, can arbitrarily make somebody a mere figurehead and lay 50m, not need blank pipe to guide again.
Claims (5)
1. 8-shaped self supporting type multi-core optical cable, it is characterized in that: it comprises upper jacket (1), messenger wire (4), lower jacket (2), cable core (9) and middle strengthening core (7), upper jacket (1) inside is filled with at least one messenger wire (4), upper jacket (1) connects into the monolithic construction that xsect is the figure of eight with lower jacket (2) by connecting portion (3), strengthening core (7) in the middle of the center of lower jacket (2) is provided with, the inside of lower jacket (2) is set with water blocking layer (5) successively, armor (6) and bundle layer (10) are pricked between layer (10) inwall and the middle strengthening core (7) and are distributed with side by side many cable cores (9).
2. a kind of 8-shaped self supporting type multi-core optical cable according to claim 1, it is characterized in that: the outside of described each root cable core (9) is coated with loose sleeve pipe (8).
3. a kind of 8-shaped self supporting type multi-core optical cable according to claim 1, it is characterized in that: described upper jacket (1), lower jacket (2) and connecting portion (3) are one-body molded through halogen-free low-smoke flame retardant material.
4. a kind of 8-shaped self supporting type multi-core optical cable according to claim 1, it is characterized in that: described armor (6) is by steel band or aluminium strip bundling shaping.
5. a kind of 8-shaped self supporting type multi-core optical cable according to claim 1 is characterized in that: described messenger wire (4) is many stranded the forming of steel strand wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102331803A CN103353643A (en) | 2013-06-13 | 2013-06-13 | 8-shaped self-supporting multi-core optical cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102331803A CN103353643A (en) | 2013-06-13 | 2013-06-13 | 8-shaped self-supporting multi-core optical cable |
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| Publication Number | Publication Date |
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| CN103353643A true CN103353643A (en) | 2013-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013102331803A Pending CN103353643A (en) | 2013-06-13 | 2013-06-13 | 8-shaped self-supporting multi-core optical cable |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104898228A (en) * | 2015-05-29 | 2015-09-09 | 成都亨通光通信有限公司 | Optical cable structure convenient to erect |
| CN104898223A (en) * | 2015-05-29 | 2015-09-09 | 成都亨通光通信有限公司 | Optical cable structure |
| CN108594376A (en) * | 2018-01-16 | 2018-09-28 | 山东太平洋光纤光缆有限公司 | A kind of multicore access net self-support cable and its manufacturing method |
| CN112731602A (en) * | 2020-12-23 | 2021-04-30 | 宏安集团有限公司 | Multi-rubber-wire branch leading-in armored optical cable |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2552023Y (en) * | 2002-06-29 | 2003-05-21 | 江苏亨通光电股份有限公司 | Fire-proof leading-in optical cable |
| CN201138383Y (en) * | 2007-11-30 | 2008-10-22 | 青岛汉缆股份有限公司 | 8 font style dry-type waterproof optic cable |
| CN201576121U (en) * | 2010-01-08 | 2010-09-08 | 北京康宁光缆有限公司 | Rat preservative optical cable |
| CN202145393U (en) * | 2011-04-21 | 2012-02-15 | 沈阳亨通光通信有限公司 | Self-supporting overhead fireproof aluminium core composite optical cable |
| CN102394135A (en) * | 2011-11-03 | 2012-03-28 | 成都亨通光通信有限公司 | Stranded double-sheath armored full dry-type self-supporting composite cable |
| CN202615874U (en) * | 2012-01-11 | 2012-12-19 | 安徽太平洋电缆集团有限公司 | Movable fireproof cable |
-
2013
- 2013-06-13 CN CN2013102331803A patent/CN103353643A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2552023Y (en) * | 2002-06-29 | 2003-05-21 | 江苏亨通光电股份有限公司 | Fire-proof leading-in optical cable |
| CN201138383Y (en) * | 2007-11-30 | 2008-10-22 | 青岛汉缆股份有限公司 | 8 font style dry-type waterproof optic cable |
| CN201576121U (en) * | 2010-01-08 | 2010-09-08 | 北京康宁光缆有限公司 | Rat preservative optical cable |
| CN202145393U (en) * | 2011-04-21 | 2012-02-15 | 沈阳亨通光通信有限公司 | Self-supporting overhead fireproof aluminium core composite optical cable |
| CN102394135A (en) * | 2011-11-03 | 2012-03-28 | 成都亨通光通信有限公司 | Stranded double-sheath armored full dry-type self-supporting composite cable |
| CN202615874U (en) * | 2012-01-11 | 2012-12-19 | 安徽太平洋电缆集团有限公司 | Movable fireproof cable |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104898228A (en) * | 2015-05-29 | 2015-09-09 | 成都亨通光通信有限公司 | Optical cable structure convenient to erect |
| CN104898223A (en) * | 2015-05-29 | 2015-09-09 | 成都亨通光通信有限公司 | Optical cable structure |
| CN108594376A (en) * | 2018-01-16 | 2018-09-28 | 山东太平洋光纤光缆有限公司 | A kind of multicore access net self-support cable and its manufacturing method |
| CN112731602A (en) * | 2020-12-23 | 2021-04-30 | 宏安集团有限公司 | Multi-rubber-wire branch leading-in armored optical cable |
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Application publication date: 20131016 |