CN102393554B - High voltage isolation insulation optical cable joint box - Google Patents
High voltage isolation insulation optical cable joint box Download PDFInfo
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- CN102393554B CN102393554B CN 201110365182 CN201110365182A CN102393554B CN 102393554 B CN102393554 B CN 102393554B CN 201110365182 CN201110365182 CN 201110365182 CN 201110365182 A CN201110365182 A CN 201110365182A CN 102393554 B CN102393554 B CN 102393554B
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Abstract
The invention provides a high voltage isolation insulation optical cable joint box, relating to an earth wire insulation joint box which is an optical cable joint box for power transmission wires of ultrahigh voltage and extra-high voltage. The high voltage isolation insulation optical cable joint box comprises an optical cable fixing clamp, a composite insulator, a sealing device, a discharge gap device, a connection sleeve, an optical fiber protection pipe and an optical fiber splice box; the composite insulator is provided with an insulator core bar out of which a petticoat is arranged; the sealing device comprises a sealing sleeve, a rubber cone and a screw cap; the connection sleeve is crimped and fixed at the lower part of the insulator core bar; the connection sleeve is provided with an optical fiber protection pipe connecting screw hole; the optical cable fixing clamp is provided with an optical cable fixing clamp body the upper part of which is provided with a fixing clamp, and a clamp block is arranged on the fixing clamp; an optical fiber protection pipe is arranged between the composite insulator and the optical fiber splice box, an optical fiber input joint and an optical fiber output joint are arranged at the bottom of the optical fiber splice box; the discharge gap device is arranged at two ends of the composite insulator; and the discharge gap device includes an upper electrode and a lower electrode.
Description
Technical field
What high voltage isolation insulation optical cable joint box of the present invention related to is a kind of ground wire insulation joint box, is a kind of for UHV (ultra-high voltage), UHV transmission line cable splice closure.
Background technology
The unbalanced long distance power transmission that determined that China's electrical production and load distribute is the inevitable choice of China's power grid construction.Along with China's expanding economy, electric power corridor growing tension; On the other hand, UHV (ultra-high voltage), UHV transmission line is increasing.The key electrical network of the extra-high voltage of trans-regional, large capacity, low-loss hundred ten thousand volts, to promote the power industry technology upgrading, realize most optimum distribution of resources in larger scope, realize trans-regional, as to stride basin two things diametrically opposed to each other, significant to energy-saving and emission-reduction and raising energy utilization rate.
The method of operation of the equal segmentation of common ground wire and OPGW insulation, the online induction current in ground is very little, and the ground wire loss is minimum, is the optimal selection of saving energy and decreasing loss therefore.Yet, the ground wire insulator arrangement is had higher requirement, the problem that mainly has following two aspects during insulation: 1) after the OPGW insulation is charged, requirement is in the place's photoelectricity reliable separation that continues, because being whole dish, installs OPGW, may all must change by whole dish optical cable in case break down, therefore high to the security requirement of equipment; 2) bring very large inconvenience for operation and the maintenance of circuit after two ground wires all insulate, particularly on OPGW continues tower, because OPGW will continue along steel tower draws under, will make after charged and step on the tower difficulty, the increase task difficulty.
Summary of the invention
The object of the present invention is to provide a kind of high voltage isolation insulation optical cable joint box, under the prerequisite that guarantees the OPGW properties of optical fiber cable, high voltage isolation insulation optical cable joint box is the Core equipment of realizing OPGW insulation operation, the OPGW electromagnetic induction voltage is very little when circuit normally moves, discharging gap can be not breakdown, and OPGW is by insulator and tower insulation; Discharging gap is breakdown when the thunderbolt optical cable; Induced voltage is also very high when line fault, and the gap is also with breakdown, thus protection circuit.
High voltage isolation insulation optical cable joint box is to take following technical scheme to realize:
High voltage isolation insulation optical cable joint box comprises cable fixing clip tool, composite insulator, packoff, discharging gap apparatus, adapter sleeve, optical fiber protective tube, fiber optic closure.Composite insulator has core rod of insulator, in the core rod of insulator outer setting full skirt is arranged, and core rod of insulator is provided with through hole, and described core rod of insulator adopts fiberglass insulation to make, and described full skirt adopts silastic material to make.
Packoff comprises sealing shroud, rubber cone and nut, and sealing shroud top is provided with rubber cone collet threaded and carriage connecting thread.The rubber cone collet threaded matches with nut, rubber cone is provided with holes for optical cables, sealing shroud top is provided with into the cable hole, the sealing shroud crimping is fixed on core rod of insulator top, rubber cone is installed in advancing on the cable hole of sealing shroud top setting, by nut its rubber cone locking is encased optical cable, thereby reach the effect of sealing.
Described adapter sleeve crimping is fixed on the core rod of insulator bottom, and adapter sleeve is provided with the optical fiber protective tube connecting screw hole.
The cable fixing clip tool is provided with cable fixing clip tool body, and cable fixing clip tool body top is provided with geometrical clamp, and fixture block is installed on the geometrical clamp, and fixture block is fixed on the geometrical clamp by stainless steel screw, is used for installing fixedly optical cable.Cable fixing clip tool body bottom is provided with the optical cable analog bracket, optical cable analog bracket middle part is provided with the carriage connecting screw hole, the optical cable analog bracket matches with the carriage connecting thread that sealing shroud top arranges by the carriage connecting screw hole, is fixed on sealing shroud top.
Between composite insulator and fiber optic closure, optical fiber protective tube is installed; the fiber optic closure bottom is provided with optical fiber input interface and optical fiber output interface; optical fiber protective tube one end links to each other with the optical fiber protective tube connecting screw hole that adapter sleeve arranges, and the other end links to each other with the optical fiber input interface that fiber optic closure arranges.Optical fiber protective tube adopts plastic coated metal hose, and this protection tube flexibility is good, is convenient to install, and plays waterproof, the advantage such as anti-aging, is widely used in electric power; Supporting joint design is tight, pore-free, and intensity is high, and good airproof performance is shockproof, and is anticorrosion, waterproof, the advantage such as dustproof.
At the composite insulator two ends discharging gap apparatus is installed, discharging gap apparatus comprises top electrode and bottom electrode; Top electrode is fixed on the sealing shroud, and bottom electrode is fixed on the adapter sleeve of core rod of insulator bottom, is provided with the striking projection at bottom electrode.
Distance is 20～40mm between the striking projection of described top electrode and bottom electrode.
In the described fiber optic closure fusion joining disk is housed, fusion joining disk is provided with molten fine groove, the fine cover plate of dish.
Described cable fixing clip tool is that the fine aluminum alloy material is made, and the cable fixing clip tool adopts fixedly optical cable of stainless steel screw; Composite insulator sophistication, technical parameter meet foreign standard IEC 60071, and composite insulator is hollow-core construction; Advance between cable hole and the composite insulator packoff is housed, it is present domestic and international positiver sealing technology, fix by crimping between packoff and the composite insulator, packoff comprises sealing shroud, rubber cone and nut, by nut rubber cone locking is encased on optical cable, thereby reach the effect of sealing.
Principle of work:
High voltage isolation insulation optical cable joint box of the present invention, first the outer twisted wire of optical cable one end is peeled off during use, stay fiber unit, optical cable is by the cable fixing clip tool, and cable fixing clip tool top fixedly fixture block is fixed on optical cable on the cable fixing clip tool by stainless steel screw.Fiber unit seals with nut compressing by sealing shroud, pass simultaneously core rod of insulator, optical fiber protective tube cause in the fiber optic closure with output interface in the optical fiber of leading in cable carry out welding, introduce machine room.
The electrical isolation of the advanced horizontal high voltage end of composite insulator is adopted in this invention, under then outside of fiber unjacketed optical fiber protection tube draws along steel tower, carries out welding with fiber optic closure again.High voltage isolation insulation optical cable joint box is with discharging gap apparatus, and when normal operation, fiber optic closure insulate with the tower that continues and bears certain electromagnetic induction voltage; When thunderbolt and line fault, can discharge by discharging gap, large electric current is introduced the earth with stationary fixture through steel tower by tower.
High voltage isolation insulation optical cable joint box is equipped with packoff, adopt sealing shroud, rubber cone and nut to carry out the mechanical system sealing, rubber cone adopts can reusable silastic material, assurance can repeat to open and use, the fiber optic closure box body adopts stainless steel screw to fix, open operation is convenient, significantly the save operation time.
The high voltage isolation insulation optical cable joint box advantage:
1, this mode photodetachment is functional, and construction is simple, and is easy to maintenance, has also reserved fiber channel for later intelligent online monitoring.
2, simple in structure, integral sealing is reliable, and mechanical property is high, corrosion resistance superior performance, operation, easy to maintenance.
3, since high voltage isolation insulation optical cable joint box with discharging gap apparatus, when normal operation, fiber optic closure with continue tower insulation and bear certain electromagnetic induction voltage; When thunderbolt and line fault, can discharge by discharging gap, large electric current is introduced the earth with stationary fixture through steel tower by tower.
4, when normal operation and installation and maintenance, because high voltage isolation insulation optical cable joint box is provided with composite insulator, optical fiber protective tube, fiber optic closure, can step on the tower hot line job.
Description of drawings
Below with reference to accompanying drawing invention is described further:
Fig. 1 is high voltage isolation insulation optical cable joint box one-piece construction schematic diagram.
Fig. 2 is the fiber optic closure one-piece construction sectional view of high voltage isolation insulation optical cable joint box.
Fig. 3 is cable fixing clip tool and the sealing device structure sectional view of high voltage isolation insulation optical cable joint box.
Fig. 4 is cable fixing clip tool and the packoff partial enlarged view of high voltage isolation insulation optical cable joint box.
Embodiment
With reference to accompanying drawing 1,2,3,4, high voltage isolation insulation optical cable joint box comprises cable fixing clip tool, composite insulator 4, packoff, discharging gap apparatus, adapter sleeve 5, optical fiber protective tube 6, fiber optic closure 8.Composite insulator 4 has core rod of insulator 21, in core rod of insulator 21 outer setting full skirt 22 is arranged, and core rod of insulator 21 is provided with through hole, and described core rod of insulator 21 adopts fiberglass insulation to make, and described full skirt 22 adopts silastic material to make.
Packoff comprises sealing shroud 3, rubber cone 18 and nut 17, and sealing shroud 3 tops are provided with rubber cone collet threaded 23 and carriage connecting thread 24.Rubber cone collet threaded 23 matches with nut 17, rubber cone 18 is provided with into cable hole 25, sealing shroud 3 tops are provided with into cable hole 25, sealing shroud 3 crimping are fixed on core rod of insulator 21 tops, rubber cone 18 is installed in advancing on the cable hole 25 of sealing shroud 3 tops setting, by nut 17 its rubber cone 18 lockings are encased fiber unit 26, thereby reach the effect of sealing.
Described adapter sleeve 5 crimping are fixed on core rod of insulator 21 bottoms, and adapter sleeve 5 is provided with optical fiber protective tube connecting screw hole 29.
The cable fixing clip tool is provided with cable fixing clip tool body 2, and cable fixing clip tool body 2 tops are provided with geometrical clamp 19, and fixture block 16 is installed on the geometrical clamp 19, and fixture block 16 is fixed on the geometrical clamp 19 by stainless steel screw, is used for installing fixedly optical cable 1.Cable fixing clip tool body 2 bottoms are provided with optical cable analog bracket 20, optical cable analog bracket 20 middle parts are provided with carriage connecting screw hole 28, optical cable analog bracket 20 matches with the carriage connecting thread 24 that sealing shroud top arranges by carriage connecting screw hole 28, is fixed on sealing shroud 3 tops.
Between composite insulator 4 and fiber optic closure 8, optical fiber protective tube 6 is installed; fiber optic closure 8 bottoms are provided with optical fiber input interface 7 and optical fiber output interface 9; optical fiber protective tube 6 one ends link to each other with the optical fiber protective tube connecting screw hole 27 that adapter sleeve 5 arranges, and the other end links to each other with the optical fiber input interface 7 that fiber optic closure 8 arranges.Optical fiber protective tube 6 adopts plastic coated metal hoses, and this protection tube flexibility is good, is convenient to install, and plays waterproof, the advantage such as anti-aging, is widely used in electric power; Supporting joint design is tight, pore-free, and intensity is high, and good airproof performance is shockproof, and is anticorrosion, waterproof, the advantage such as dustproof.
At composite insulator 4 two ends discharging gap apparatus is installed, discharging gap apparatus comprises top electrode 13 and bottom electrode 15; Top electrode 13 is fixed on the sealing shroud 3, and bottom electrode 15 is fixed on the core rod of insulator 21 bottom adapter sleeves 5, is provided with striking projection 14 at bottom electrode 15.
Distance is 20～40mm between the striking projection 14 of described top electrode 13 and bottom electrode 15.
In the described fiber optic closure 8 fusion joining disk 12 is housed, fusion joining disk is provided with molten fine groove 11, the fine cover plate 10 of dish.
Described cable fixing clip tool is that the fine aluminum alloy material is made, and the cable fixing clip tool adopts fixedly optical cable of stainless steel screw; Composite insulator 4 sophistications, technical parameter meets foreign standard IEC 60071, and composite insulator 4 is hollow-core construction; Rubber cone 18 is installed in advancing on the cable hole 25 of sealing shroud 3 tops setting, advance between cable hole 25 and the composite insulator 4 packoff is housed, it is present domestic and international positiver sealing technology, fix by crimping between packoff and the composite insulator 4, packoff comprises sealing shroud 3, rubber cone 18 and nut 17, by nut 17 rubber cone 18 locking is encased on fiber unit 26, thereby reach the effect of sealing.
The electrical isolation of the advanced horizontal high voltage end of insulator is adopted in this invention, under then connection optical fiber protective tube 6 in optical cable 1 outside draws along steel tower, carries out welding with fiber optic closure 8 again.
High voltage isolation insulation optical cable joint box is equipped with packoff, adopt sealing shroud 3, rubber cone 18 and nut 17 to carry out the mechanical system sealing, rubber cone 18 adopts can reusable silastic material, assurance can repeat to open and use, fiber optic closure 8 adopts stainless steel screw 27 fixing, open operation is convenient, significantly the save operation time.
Claims (6)
1. a high voltage isolation insulation optical cable joint box is characterized in that: comprise cable fixing clip tool, composite insulator, packoff, discharging gap apparatus, adapter sleeve, optical fiber protective tube, fiber optic closure;
Composite insulator has core rod of insulator, in the core rod of insulator outer setting full skirt is arranged, and core rod of insulator is provided with through hole;
Packoff comprises sealing shroud, rubber cone and nut, sealing shroud top is provided with rubber cone collet threaded and carriage connecting thread, the rubber cone collet threaded matches with nut, rubber cone is provided with holes for optical cables, sealing shroud top is provided with into the cable hole, the sealing shroud crimping is fixed on core rod of insulator top, and rubber cone is installed in advancing on the cable hole of sealing shroud top setting, by nut this rubber cone locking is encased optical cable;
Described adapter sleeve crimping is fixed on the core rod of insulator bottom, and adapter sleeve is provided with the optical fiber protective tube connecting screw hole;
The cable fixing clip tool is provided with cable fixing clip tool body, cable fixing clip tool body top is provided with geometrical clamp, fixture block is installed on the geometrical clamp, fixture block is fixed on the geometrical clamp by stainless steel screw, be used for fixedly optical cable is installed, cable fixing clip tool body bottom is provided with the optical cable analog bracket, and optical cable analog bracket middle part is provided with the carriage connecting screw hole, the optical cable analog bracket matches with the carriage connecting thread that sealing shroud top arranges by the carriage connecting screw hole, is fixed on sealing shroud top;
Between composite insulator and fiber optic closure, optical fiber protective tube is installed, the fiber optic closure bottom is provided with optical fiber input interface and optical fiber output interface, optical fiber protective tube one end links to each other with the optical fiber protective tube connecting screw hole that adapter sleeve arranges, and the other end links to each other with the optical fiber input interface that fiber optic closure arranges;
At the composite insulator two ends discharging gap apparatus is installed, discharging gap apparatus comprises top electrode and bottom electrode; Top electrode is fixed on the sealing shroud, and bottom electrode is fixed on the core rod of insulator bottom, is provided with the striking projection at bottom electrode.
2. high voltage isolation insulation optical cable joint box according to claim 1 is characterized in that: described core rod of insulator adopts fiberglass insulation to make.
3. high voltage isolation insulation optical cable joint box according to claim 1 is characterized in that: described full skirt adopts silastic material to make.
4. high voltage isolation insulation optical cable joint box according to claim 1, it is characterized in that: described cable fixing clip tool is that aluminum alloy materials is made.
5. high voltage isolation insulation optical cable joint box according to claim 1 is characterized in that: in the described fiber optic closure fusion joining disk is housed, fusion joining disk is provided with molten fine groove, the fine cover plate of dish.
6. high voltage isolation insulation optical cable joint box according to claim 1 is characterized in that: distance is 20～40mm between the striking projection of described top electrode and bottom electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110365182 CN102393554B (en) | 2011-11-17 | 2011-11-17 | High voltage isolation insulation optical cable joint box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110365182 CN102393554B (en) | 2011-11-17 | 2011-11-17 | High voltage isolation insulation optical cable joint box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102393554A CN102393554A (en) | 2012-03-28 |
| CN102393554B true CN102393554B (en) | 2013-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110365182 Expired - Fee Related CN102393554B (en) | 2011-11-17 | 2011-11-17 | High voltage isolation insulation optical cable joint box |
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| CN (1) | CN102393554B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102706478B (en) * | 2012-06-27 | 2014-07-02 | 保定市五星光纤传感技术有限公司 | Optical fiber type temperature sensing system suitable for outdoor high-voltage contact |
| CN116826605A (en) * | 2023-04-24 | 2023-09-29 | 江苏亨通电力智网科技有限公司 | Terminal leading-out device and overhead insulated light unit composite wire installation scheme |
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| EP0297728A2 (en) * | 1987-06-03 | 1989-01-04 | Ngk Insulators, Ltd. | Optical fiber-containing insulators |
| CN2864716Y (en) * | 2005-12-08 | 2007-01-31 | 陈广生 | Terminal joint case for optical fiber composite phase wire |
| CN201122190Y (en) * | 2007-11-21 | 2008-09-24 | 江苏中天科技股份有限公司 | Optical fiber compound phase line joint box |
| CN101533134A (en) * | 2009-04-28 | 2009-09-16 | 江苏中天科技股份有限公司 | Terminal connection box for optical phase conductor |
| CN102033279A (en) * | 2010-12-20 | 2011-04-27 | 江东金具设备有限公司 | Optical fiber composite aerial earth wire (OPGW) energy-saving joint box |
| CN201917699U (en) * | 2011-02-23 | 2011-08-03 | 石家庄开发区华能电气有限公司 | Full-insulating joint box for optical fiber composite overhead ground wires |
| CN202033498U (en) * | 2011-03-24 | 2011-11-09 | 中国电力科学研究院 | 500kV line OPGW (Optical Fiber Composite Overhead Ground Wire) optical cable insulating joint box |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57111502A (en) * | 1980-12-29 | 1982-07-12 | Fujitsu Ltd | Optical fiber cable leading-in structure to watertight housing |
| JPH05273256A (en) * | 1992-03-24 | 1993-10-22 | Furukawa Electric Co Ltd:The | Insulator built-in type photo voltage sensor |
| CN202393950U (en) * | 2011-11-17 | 2012-08-22 | 江东金具设备有限公司 | High voltage isolating insulation optical cable joint box |
-
2011
- 2011-11-17 CN CN 201110365182 patent/CN102393554B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0297728A2 (en) * | 1987-06-03 | 1989-01-04 | Ngk Insulators, Ltd. | Optical fiber-containing insulators |
| CN2864716Y (en) * | 2005-12-08 | 2007-01-31 | 陈广生 | Terminal joint case for optical fiber composite phase wire |
| CN201122190Y (en) * | 2007-11-21 | 2008-09-24 | 江苏中天科技股份有限公司 | Optical fiber compound phase line joint box |
| CN101533134A (en) * | 2009-04-28 | 2009-09-16 | 江苏中天科技股份有限公司 | Terminal connection box for optical phase conductor |
| CN102033279A (en) * | 2010-12-20 | 2011-04-27 | 江东金具设备有限公司 | Optical fiber composite aerial earth wire (OPGW) energy-saving joint box |
| CN201917699U (en) * | 2011-02-23 | 2011-08-03 | 石家庄开发区华能电气有限公司 | Full-insulating joint box for optical fiber composite overhead ground wires |
| CN202033498U (en) * | 2011-03-24 | 2011-11-09 | 中国电力科学研究院 | 500kV line OPGW (Optical Fiber Composite Overhead Ground Wire) optical cable insulating joint box |
Non-Patent Citations (2)
| Title |
|---|
| JP昭57-111502A 1982.07.12 |
| JP特开平5-273256A 1993.10.22 |
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| CN102393554A (en) | 2012-03-28 |
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