CN102364609A - Method for manufacturing central-tube type single-sheath unarmored fully-dried type optical fiber composite optical cable - Google Patents
Method for manufacturing central-tube type single-sheath unarmored fully-dried type optical fiber composite optical cable Download PDFInfo
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- CN102364609A CN102364609A CN2011103501840A CN201110350184A CN102364609A CN 102364609 A CN102364609 A CN 102364609A CN 2011103501840 A CN2011103501840 A CN 2011103501840A CN 201110350184 A CN201110350184 A CN 201110350184A CN 102364609 A CN102364609 A CN 102364609A
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Abstract
The invention discloses a method for manufacturing a central-tube type single-sheath unarmored fully-dried type optical fiber composite optical cable. A fully-dried type (central-tube type) optical unit, a conductor on which an insulating layer is coated, a filling rope and the like are stranded and then externally coated by using a thermal insulation belt; a plurality of dried water blocking objects can be added into a clearance of a cable core so as to achieve effects of rounding the cable core and blocking water; a layer of outer sheath is extruded; and the insulating layer of the conductor, a filling material and the outer sheath adopt a flame retardant material which is polyvinyl chloride (PVC) or low smoke zero halogen (LSZH). Meanwhile, the optical unit is the central-tube type optical unit which has a loose-sleeve fully-dried type structure; and the interior of a sleeve or the cable core is made of a dried type water blocking material, so that water-proof and moisture-proof effects of total cross-section are achieved.
Description
Technical field
The application relates to the manufacture method of the absolutely dry type Optical Fiber Composite of a kind of non-armouring of central tubular list sheath optical cable.
Background technology
Along with national intelligent grid strategy requirements on Construction, national grid will carry out the intelligent grid construction in China.Intelligent grid is to be that the strong rack of key rack, electric network coordination at different levels development is the basis with extra-high voltage grid; With communication information platform is support; Have informationization, automation, interactive characteristic; The generating, transmission of electricity, power transformation, distribution, electricity consumption and the scheduling six big links that comprise electric power system; Cover all electric pressures, realize that many nets of " flow of power, information flow, Business Stream " merge, have the modern power network of strong reliable, economical and efficient, clean environment firendly, transparent opening and friendly interactive intension.Medium and high pressure section cable in the market; Utilize OPGW or ADSS and existing electrical lead to constitute the notion that many nets merge, and at middle pressure and low pressure stage, when promptly perhaps the user inserts in the metropolitan area network; Consider the city look and feel construction requirements; The cable system of laying is often underground by transferring on the road, and just pipeline and direct-buried mode become more general, the optical fiber that therefore will transmit information and electrical lead permeate bar Optical Fiber Composite cable will become intelligent grid build in the main force of middle pressure and low pressure stage.
The light unit adopts loose sleeve pipe dry type structure in the dry type Optical Fiber Composite cable newly developed, and just the interior perhaps cable core of sleeve pipe adopts the dry type material water-proof material to realize the effect of total cross-section waterproof retaining tide.This invention is mainly used in 10kV and the following power distribution network thereof, and system of laying is main with direct-burried or pipeline, and its major advantage is following:
(1) realizes the effect that blocks water because of light unit total cross-section adopts the dry type material water-proof material, do not have the vertical drip problem of ointment, so can effectively protect light unit total length section to block water in section or the vertical wirings significantly at drop;
(2) fill because of no ointment in the light unit, so such Optical Fiber Composite cable has better fire resistance;
(3) because of optical fiber by bale breaking the cover in; Be bound in the tight sleeve layer unlike the same optical fiber of tight sleeve optic cable; Therefore in broad temperature range, have the little characteristics of decay, be particularly suitable for long application apart from optical branching device in intermediate pressure section line construction and the low pressure stage circuit.
Summary of the invention
In structured design process, focus on the protection that the structural shape and the light unit of power cable are pressed in consideration.Consider cable long-term work temperature, the light unit can adopt high temperature resistant fine cream, high-temperature resistant optical fiber, or takes certain separator to guarantee the stable of Optical Fiber Transmission performance.
According to the networking requirement of this cable, dry type light unit can adopt central tubular structured light unit;
According to the cable laying demand, the oversheath form can adopt the non-armouring type of single sheath;
The manufacture method of the absolutely dry type Optical Fiber Composite of the non-armouring of the application's central tubular list sheath optical cable is following:
(1) the preparation conductor adopts single copper cash as conductor, is coated with insulating barrier in the periphery of conductor, and with the transmission performance of raising conductor, three conductors are as a conductor element; (2) preparing centre tubular type light unit installs to some optical fiber on the pay off rack, adjusts unwrapping wire and stretches power, and unwrapping wire is stretched power at 40～100g; (3) some optical fiber are drawn according to assigned direction, and be incorporated into plastic extruding machine, outside optical fiber, extrude and coated loose sleeve pipe, in the loose sleeve pipe of extruding, inject the dry type water-blocking material simultaneously, the injection rate of dry type water-blocking material is to send 92%～98% of cannula cavity cross section; (4) reinforcement of being processed by nonmetallic materials in a tubular form, is enclosed with the optical fiber that a loose sleeve pipe coats in the can reinforcement, to strengthen support force and tensile strength; (5) be extruded with light unit sheath in the outside of metal reinforcement; (6) conductor element and a central tubular light unit of three conductors being formed form cable core; Cable core is carried out optical fiber attenuation, surplus long the detection; The detection back that finishes is stranded and coat heat insulating belt and oversheath successively through stranding; And increase the dry type water-blocking material in the cable core gap, close and block-water effect to guarantee the cable core rounding.Wherein, wire insulation, filler and outer jacket adopt fire proofing.Wherein, fire proofing is PVC or LSZH.
The light unit of the composite rope of being designed and developed by said method has adopted the dry type structure, just in loose sleeve pipe and the cable core gap adopt the dry type material water-proof material to realize that total cross-section blocks water, the overall optical unit is nonmetal full dielectric structure.Because whole optical fiber composite cable has adopted outstanding raw material of performance and relatively more suitable structure; Therefore; Not only the light unit has the characteristics of heat insulation preferably, resistance to compression and tension, and whole cable has electric property and optical property preferably, satisfies the demand that intelligent grid is built fully.
Description of drawings
Fig. 1 composite rope cross-sectional view
Fig. 2 light cell cross-section figure
Fig. 3 is a method flow diagram
Wherein,
The 11-conductor
The 12-insulating barrier
13-light unit
The 14-heat insulating belt
The 15-oversheath
A1-light unit sheath
The A2 non-metal reinforcement member
A3-pine sleeve pipe
A4-dry type water-blocking material
A5-optical fiber
Embodiment
With reference to Fig. 1; 2 composite rope structure and the flow process of Fig. 3; The manufacture method of the absolutely dry type Optical Fiber Composite of the non-armouring of the application's central tubular list sheath optical cable is following: (1) preparation conductor, and adopt single copper cash as conductor, be coated with insulating barrier in the periphery of conductor; To improve the transmission performance of conductor, three conductors are as a conductor element; (2) preparing centre tubular type light unit installs to some optical fiber on the pay off rack, adjusts unwrapping wire and stretches power, and unwrapping wire is stretched power at 40～100g; (3) some optical fiber are drawn according to assigned direction, and be incorporated into plastic extruding machine, outside optical fiber, extrude and coated loose sleeve pipe, in the loose sleeve pipe of extruding, inject the dry type water-blocking material simultaneously, the injection rate of dry type water-blocking material is to send 92%～98% of cannula cavity cross section; (4) reinforcement of being processed by nonmetallic materials in a tubular form, is enclosed with the optical fiber that a loose sleeve pipe coats in the can reinforcement, to strengthen support force and tensile strength; (5) be extruded with light unit sheath in the outside of metal reinforcement; (6) conductor element and a central tubular light unit of three conductors being formed form cable core; Cable core is carried out optical fiber attenuation, surplus long the detection; The detection back that finishes is stranded and coat heat insulating belt and oversheath successively through stranding; And increase the dry type water-blocking material in the cable core gap, close and block-water effect to guarantee the cable core rounding.Wherein, wire insulation, filler and outer jacket adopt fire proofing.Wherein, fire proofing is PVC or LSZH.
Exploitation through new construction; Designed a kind of dry type Optical Fiber Composite cable; For middle pressure and low pressure stage in the intelligent grid construction provide a kind of brand-new product; Also solved the drawback that ointment filled type light unit exists in the vertical wirings application process, optical fiber and power conductor are gathered and in same cable, have also been practiced thrift construction cost in the Optical Fiber Composite low-voltage cable, and have alleviated the deficient circumstances of conduit resource to a certain extent.
Thereby reached following effect:
1, the telecommunication management of pressure and low pressure stage in solving in the intelligent grid is that four net fusions are laid a good foundation;
2, avoid the wiring that repeats of optical cable and cable, practice thrift construction cost;
3, avoid the vertical drip problem of ointment in the ointment filled type structure, guaranteed the wet requirement of the moistureproof retaining of light unit total length section.
4, because of not using ointment, so have the good flame performance.
Because of optical fiber by bale breaking the cover in; Be bound in the tight sleeve layer unlike the same optical fiber of tight sleeve optic cable; Therefore in broad temperature range, have the little characteristics of decay, be particularly suitable for long application apart from optical branching device in intermediate pressure section line construction and the low pressure stage circuit.
Claims (3)
1. the manufacture method of the absolutely dry type Optical Fiber Composite of the non-armouring of a central tubular list sheath optical cable is characterized in that this method may further comprise the steps:
(1) the preparation conductor adopts single copper cash as conductor, is coated with insulating barrier in the periphery of conductor, and with the transmission performance of raising conductor, three conductors are as a conductor element;
(2) preparing centre tubular type light unit installs to some optical fiber on the pay off rack, adjusts unwrapping wire and stretches power, and unwrapping wire is stretched power at 40～100g;
(3) some optical fiber are drawn according to assigned direction, and be incorporated into plastic extruding machine, outside optical fiber, extrude and coated loose sleeve pipe, in the loose sleeve pipe of extruding, inject the dry type water-blocking material simultaneously, the injection rate of dry type water-blocking material is to send 92%～98% of cannula cavity cross section;
(4) reinforcement of being processed by nonmetallic materials in a tubular form, is enclosed with the optical fiber that a loose sleeve pipe coats in the tubulose reinforcement, to strengthen support force and tensile strength;
(5) be extruded with light unit sheath in the outside of metal reinforcement;
(6) conductor element and a central tubular light unit of three conductors being formed form cable core; Cable core is carried out optical fiber attenuation, surplus long the detection; The detection back that finishes is stranded and coat heat insulating belt and oversheath successively through stranding; And increase the dry type water-blocking material in the cable core gap, close and block-water effect to guarantee the cable core rounding.
2. manufacture method as claimed in claim 1 is characterized in that, wherein, wire insulation, filler and outer jacket adopt fire proofing.
3. manufacture method as claimed in claim 2 is characterized in that, wherein, fire proofing is PVC or LSZH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103501840A CN102364609A (en) | 2011-11-08 | 2011-11-08 | Method for manufacturing central-tube type single-sheath unarmored fully-dried type optical fiber composite optical cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103501840A CN102364609A (en) | 2011-11-08 | 2011-11-08 | Method for manufacturing central-tube type single-sheath unarmored fully-dried type optical fiber composite optical cable |
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| CN102364609A true CN102364609A (en) | 2012-02-29 |
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| CN2011103501840A Pending CN102364609A (en) | 2011-11-08 | 2011-11-08 | Method for manufacturing central-tube type single-sheath unarmored fully-dried type optical fiber composite optical cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021547A (en) * | 2012-12-28 | 2013-04-03 | 江苏亨通光电股份有限公司 | Photoelectric fusion hybrid cable |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1862303A (en) * | 2006-06-20 | 2006-11-15 | 江苏中天科技股份有限公司 | Non-universal optical unit of submarine photoelectric composite cable and making method thereof |
| CN101029955A (en) * | 2007-04-03 | 2007-09-05 | 长飞光纤光缆有限公司 | Waterproof armoured optical fiber and grease injection coating machine in protecting-layer apparatus |
| CN201203683Y (en) * | 2008-02-29 | 2009-03-04 | 四川九洲线缆有限责任公司 | Communication optical cable for layer-twisted type coal mine |
| CN201853538U (en) * | 2010-11-12 | 2011-06-01 | 江苏亨通光电股份有限公司 | Full-dry optical fiber composite cable |
-
2011
- 2011-11-08 CN CN2011103501840A patent/CN102364609A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1862303A (en) * | 2006-06-20 | 2006-11-15 | 江苏中天科技股份有限公司 | Non-universal optical unit of submarine photoelectric composite cable and making method thereof |
| CN101029955A (en) * | 2007-04-03 | 2007-09-05 | 长飞光纤光缆有限公司 | Waterproof armoured optical fiber and grease injection coating machine in protecting-layer apparatus |
| CN201203683Y (en) * | 2008-02-29 | 2009-03-04 | 四川九洲线缆有限责任公司 | Communication optical cable for layer-twisted type coal mine |
| CN201853538U (en) * | 2010-11-12 | 2011-06-01 | 江苏亨通光电股份有限公司 | Full-dry optical fiber composite cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021547A (en) * | 2012-12-28 | 2013-04-03 | 江苏亨通光电股份有限公司 | Photoelectric fusion hybrid cable |
| CN103021547B (en) * | 2012-12-28 | 2016-01-20 | 江苏亨通光电股份有限公司 | Photoelectric fusion hybrid cable |
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Application publication date: 20120229 |