CN104300476A - Optical unit direct guide down device for OPPC wire of 110 kV power supply circuit - Google Patents
Optical unit direct guide down device for OPPC wire of 110 kV power supply circuit Download PDFInfo
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- CN104300476A CN104300476A CN201410562756.5A CN201410562756A CN104300476A CN 104300476 A CN104300476 A CN 104300476A CN 201410562756 A CN201410562756 A CN 201410562756A CN 104300476 A CN104300476 A CN 104300476A
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- hole
- silicon rubber
- oppc
- sheath
- head
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Cable Accessories (AREA)
Abstract
The invention discloses an optical unit direct guide down device for an OPPC wire of a 110 kV power supply circuit. The device comprises a separation sleeve, a sealing ring, a hollow support, a PE protection cover, a steel gasket and a hollow bolt; a main through hole adapted to the outer diameter of the OPPC wire and a step hole formed in parallel with the main through hole are formed in the separation sleeve, the step hole is formed by a small diameter hole located in the inside and a large diameter hole located in the outside, the small diameter hole is communicated with the middle of the main through hole, the steel gasket presses a flange head, the hollow support and the sealing ring in the large diameter hole sequentially so that the sealing ring, the hollow support and the PE protection cover form a waterproof sealing cavity used for mounting an optical unit, the waterproof sealing cavity has high clamping force and excellent waterproof sealing performance on the optical unit led out of the OPPC wire, the implementation reliability is high, and requirements on borne wind power and swing amplitude competence when an optical unit of a 110 kV overhead line is guided down can be met.
Description
Technical field
The light unit that the present invention relates to a kind of 110kV power transmission sequence OPPC wire directly draws lower device.
Background technology
Current power network is large-scale, complex structure.Leave optical communication net, cannot normal operation.Optical communication has become the main flow of electrical network.The optical-fibre channel coverage rate of our province 110kV and above electrical network reaches 100%.But the optical channel of electrical network mainly realizes by Optical Fiber composite overhead Ground Wire (OPGW, Optical Power Grounding Wire).
OPGW optical communication weak point is exactly that all transmission towers must ground connection.Increase the electric energy loss of power transmission sequence significantly.This runs in the opposite direction with the strategy of sustainable development of energy-saving and emission-reduction.
The eighties in last century, electrical network starts to attempt using " photoreactivation phase conductor (OPPC, Optical Phase Conductor) ".Namely light unit is placed in phase conductor.Become the new way that the dependence to OPGW is broken away from power network optical communication.Originally, phase conductor doubled as optical channel, even if do not consider energy-conservation, also superior than OPGW economically.Unfortunately, the light unit of traditional OPPC draws lower trouble costliness, and fixed length distribution is wanted in construction, and to construction, run, particularly accident maintenance causes great obstacle.In addition, 110kV overhead wire mounting height more than the height of 10kV, light unit downlead than the length of 10kV, the wind-force born and amplitude of fluctuation larger.Require that being separated sleeve pipe light unit insulating sleeve has higher chucking power and anti-flexing power; 110kV overhead wire is more important than 10kV in electrical network, and the light unit of extraction is in the electric field more much better than than 10kV, requires that separation has higher watertightness performance under drawing.So up to the present the OPPC of 110kV power transmission sequence still can not promote the use of for a long time in electrical network.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of light unit of 110kV power transmission sequence OPPC wire directly to draw lower device.
Solve the problems of the technologies described above, the technical solution adopted in the present invention is as follows:
The light unit of 110kV power transmission sequence OPPC wire directly draws a lower device, it is characterized in that: described light unit directly draws lower device and comprises separation sleeve pipe, sealing ring, hollow stent, PE sheath, steel packing ring and hollow bolt, described separation sleeve pipe is provided with the main through hole adapting to OPPC outer diameter of cable and the shoulder hole being parallel to the setting of main through hole, described shoulder hole is made up of with the hole, large footpath being positioned at outside the diameter holes being positioned at inner side, described diameter holes is communicated to the middle part of main through hole, the outboard end hole wall in hole, described large footpath is provided with internal thread, the sheath body medial end of described PE sheath is formed with the flange head of evagination, described sealing ring, hollow stent and flange head adaptation are arranged in hole, large footpath, described steel packing ring and hollow bolt are all sleeved in the sheath body of PE sheath, wherein steel packing ring is between flange head and hollow bolt, the thread head of described hollow bolt is meshed with the internal thread in hole, large footpath, by steel packing ring successively by described flange head, hollow stent and sealing ring are pressed in hole, described large footpath, make described sealing ring, hollow stent and PE sheath form the waterproof sealing cavity for installing light unit.
As a modification of the present invention, described light unit directly draws lower device and also comprises attaching nut, bended pipe and silicon rubber cold shrink sleeve, the bolt head of described hollow bolt is provided with the external screw thread adapting to described attaching nut, the upper end of described bended pipe is locked on the bolt head of hollow bolt by attaching nut, the upper end of described silicon rubber cold shrink sleeve is sleeved on the lower end of bended pipe, and the sheath body of described PE sheath is by stretching out from the lower end of silicon rubber cold shrink sleeve after bended pipe.
As a modification of the present invention, described silicon rubber cold shrink sleeve is made up of cylindrical shape silicon rubber cold shrink sleeve and the full cold-shrink cable terminal of multiple silicon rubber, described cylindrical shape silicon rubber cold shrink sleeve is sleeved on the lower end of bended pipe as the upper end of silicon rubber cold shrink sleeve, the full cold-shrink cable terminal of described multiple silicon rubber successively head and the tail connects, wherein the head end of the full cold-shrink cable terminal of the top silicon rubber is sleeved on cylindrical shape silicon rubber cold shrink sleeve, and the tail end of the full cold-shrink cable terminal of bottom silicon rubber is as the lower end of silicon rubber cold shrink sleeve.
Compared with prior art, the present invention has following beneficial effect:
First, the present invention is separated sleeve pipe, sealing ring, hollow stent, PE sheath, steel packing ring and hollow bolt by arranging, define the waterproof sealing cavity for installing light unit, this waterproof sealing cavity has high chucking power and anti-flexing power and good waterproof seal to the light unit of drawing from OPPC cable, it is high that it implements reliability, can meet 110kV make somebody a mere figurehead linear light unit draw under time requirement to the wind-force born and amplitude of fluctuation ability;
The second, the present invention, by arranging attaching nut, bended pipe and silicon rubber cold shrink sleeve, achieves under the drawing from the isolated smooth unit of OPPC cable, guarantees the light unit waterproof sealing under drawing;
3rd, silicon rubber cold shrink sleeve of the present invention is made up of cylindrical shape silicon rubber cold shrink sleeve and the full cold-shrink cable terminal of multiple silicon rubber, has larger creepage distance, can guarantee the stability of Signal transmissions in light unit;
Three, 110kV overhead wire is more important than 10kV in electrical network, and the light unit of extraction is in the electric field more much better than than 10kV, requires that separation has higher watertightness performance under drawing.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Fig. 1 is the structural representation that smooth unit of the present invention directly draws lower device;
Fig. 2 be separated sleeve pipe in the present invention partly cut open structural representation;
Fig. 3 is the structural representation of A portion band transparent effect in Fig. 1.
Embodiment
As shown in Figure 1 to Figure 3, the light unit of 110kV power transmission sequence OPPC wire of the present invention directly draws lower device, comprises and is separated sleeve pipe 1, sealing ring 2, hollow stent 3, PE sheath 4, steel packing ring 5 and hollow bolt 6, be separated sleeve pipe 1 and be provided with the main through hole 1a adapting to OPPC cable 7 external diameter and the shoulder hole 1b being parallel to main through hole 1a setting, shoulder hole 1b is made up of with the hole, large footpath being positioned at outside the diameter holes being positioned at inner side, diameter holes is communicated to the middle part of main through hole 1a, the outboard end hole wall in hole, large footpath is provided with internal thread, the sheath body medial end of PE sheath 4 is formed with the flange head 4a of evagination, sealing ring 2, hollow stent 3 and flange head 4a adaptation are arranged in hole, large footpath, steel packing ring 5 and hollow bolt 6 are all sleeved in the sheath body of PE sheath 4, wherein steel packing ring 5 is between flange head 4a and hollow bolt 6, the thread head of hollow bolt 6 is meshed with the internal thread in hole, large footpath, by steel packing ring 5 successively by flange head 4a, hollow stent 3 and sealing ring 2 are pressed in hole, large footpath, make sealing ring 2, hollow stent 3 and PE sheath 4 form the waterproof sealing cavity for installing light unit 8.
Smooth unit of the present invention directly draws lower device and also comprises attaching nut 9, bended pipe 10 and silicon rubber cold shrink sleeve, the bolt head of hollow bolt 6 is provided with the external screw thread adapting to attaching nut 9, the upper end of bended pipe 10 is locked at by attaching nut 9 on the bolt head of hollow bolt 6, the upper end of silicon rubber cold shrink sleeve is sleeved on the lower end of bended pipe 10, and the sheath body of PE sheath 4 is by stretching out from the lower end of silicon rubber cold shrink sleeve after bended pipe 10.
Silicon rubber cold shrink sleeve of the present invention is made up of cylindrical shape silicon rubber cold shrink sleeve 11 and the full cold-shrink cable terminal 12 of multiple silicon rubber, cylindrical shape silicon rubber cold shrink sleeve 11 is sleeved on the lower end of bended pipe 10 as the upper end of silicon rubber cold shrink sleeve, the full cold-shrink cable terminal 12 of multiple silicon rubber successively head and the tail connects, wherein the head end of the full cold-shrink cable terminal 12 of the top silicon rubber is sleeved on cylindrical shape silicon rubber cold shrink sleeve 11, and the tail end of the full cold-shrink cable terminal 12 of bottom silicon rubber is as the lower end of silicon rubber cold shrink sleeve.
When using smooth unit of the present invention directly to draw lower device, separation sleeve pipe 1 is installed to the position that OPPC cable 7 needs to draw lower smooth unit 8, and will be installed in waterproof sealing cavity that sealing ring 2, hollow stent 3 and PE sheath 4 formed from the isolated smooth unit 8 of OPPC cable 7, again the light unit 8 be sleeved in PE sheath 4 is penetrated in silicon rubber cold shrink sleeve, thus light unit 8 is drawn lower to ground; OPPC cable 7 ' after separated light unit 8 then stretches out from the main through hole 1a being separated sleeve pipe 1.
Through test, smooth unit of the present invention directly draws lower device can reach the following basic class of insulation:
1, by national standard (GB-311.1-2012) 110kV outdoor insulative, must can tolerate 480kVp all-wave and impact and after 480kVp cuts wave impact, 230kV power-frequency voltage 1min can be tolerated.
2, by national standard, in the dirty district of III level, 110kV outdoor insulative creep distance, under highest operating voltage, (this project gets 121kV/
) palpus>=31mm/kV.I.e. total insulation creep distance palpus >=2166mm.
3, the field intensity 232kV/m in the light unit exit of sleeve pipe is separated.Must with anti-galvanic corrosion insulating material (silicon rubber umbrella skirt sheath).
In addition, the test circuit of this device is insulation (BPT) light unit OPPC.Working temperature≤150 DEG C of BPT.Feasibility analysis need be done to 110kV test circuit.Namely ensure that this circuit is when short circuit accident (Ik is often beyond 10000A), conductor temperature rises to≤150 DEG C before, short circuit current can reliably excise.Namely must calculate the short circuit current temperature rise to 150 DEG C of the actual maximum possible of this circuit time >=4s (110kV backup protection Outlet time far away).
The present invention does not limit to and above-mentioned embodiment; according to foregoing; according to ordinary technical knowledge and the customary means of this area; do not departing under the present invention's above-mentioned basic fundamental thought prerequisite; the present invention can also make the equivalent modifications of other various ways, replacement or change, all drops among protection scope of the present invention.
Claims (3)
1. the light unit of 110kV power transmission sequence OPPC wire directly draws a lower device, it is characterized in that: described light unit directly draws lower device and comprises separation sleeve pipe (1), sealing ring (2), hollow stent (3), PE sheath (4), steel packing ring (5) and hollow bolt (6), described separation sleeve pipe (1) is provided with the main through hole (1a) that adapts to OPPC cable (7) external diameter and is parallel to the shoulder hole (1b) that main through hole (1a) arranges, described shoulder hole (1b) is made up of with the hole, large footpath being positioned at outside the diameter holes being positioned at inner side, described diameter holes is communicated to the middle part of main through hole (1a), the outboard end hole wall in hole, described large footpath is provided with internal thread, the sheath body medial end of described PE sheath (4) is formed with the flange head (4a) of evagination, described sealing ring (2), hollow stent (3) and flange head (4a) adaptation are arranged in hole, large footpath, described steel packing ring (5) and hollow bolt (6) are all sleeved in the sheath body of PE sheath (4), wherein steel packing ring (5) is positioned between flange head (4a) and hollow bolt (6), the thread head of described hollow bolt (6) is meshed with the internal thread in hole, large footpath, by steel packing ring (5) successively by described flange head (4a), hollow stent (3) and sealing ring (2) are pressed in hole, described large footpath, make described sealing ring (2), hollow stent (3) and PE sheath (4) form the waterproof sealing cavity for installing light unit (8).
2. smooth unit according to claim 1 directly draws lower device, it is characterized in that: described light unit directly draws lower device and also comprises attaching nut (9), bended pipe (10) and silicon rubber cold shrink sleeve, the bolt head of described hollow bolt (6) is provided with the external screw thread adapting to described attaching nut (9), the upper end of described bended pipe (10) is locked on the bolt head of hollow bolt (6) by attaching nut (9), the upper end of described silicon rubber cold shrink sleeve is sleeved on the lower end of bended pipe (10), the sheath body of described PE sheath (4) is by stretching out from the lower end of silicon rubber cold shrink sleeve after bended pipe (10).
3. smooth unit according to claim 2 directly draws lower device, it is characterized in that: described silicon rubber cold shrink sleeve is made up of cylindrical shape silicon rubber cold shrink sleeve (11) and the full cold-shrink cable terminal of multiple silicon rubber (12), described cylindrical shape silicon rubber cold shrink sleeve (11) is sleeved on the lower end of bended pipe (10) as the upper end of silicon rubber cold shrink sleeve, the full cold-shrink cable terminal of described multiple silicon rubber (12) successively head and the tail connects, wherein the head end of the full cold-shrink cable terminal of the top silicon rubber (12) is sleeved on cylindrical shape silicon rubber cold shrink sleeve (11), the tail end of the full cold-shrink cable terminal of bottom silicon rubber (12) is as the lower end of silicon rubber cold shrink sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410562756.5A CN104300476B (en) | 2014-10-21 | 2014-10-21 | Optical unit direct guide down device for OPPC wire of 110 kV power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410562756.5A CN104300476B (en) | 2014-10-21 | 2014-10-21 | Optical unit direct guide down device for OPPC wire of 110 kV power supply circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104300476A true CN104300476A (en) | 2015-01-21 |
| CN104300476B CN104300476B (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410562756.5A Active CN104300476B (en) | 2014-10-21 | 2014-10-21 | Optical unit direct guide down device for OPPC wire of 110 kV power supply circuit |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202121265U (en) * | 2011-06-03 | 2012-01-18 | 广东岱敏电网技术咨询服务中心 | Optical phase conductor photoelectric separating apparatus used for live-line work |
| JP2012120333A (en) * | 2010-12-01 | 2012-06-21 | Kanefuji Sangyo Kk | Lead-in cable support |
| CN202772510U (en) * | 2012-07-13 | 2013-03-06 | 江门市新会新宝成电气工程有限公司 | Photoelectric separation device for leading-down of optical unit of OPPC (optical phase conductor) |
| CN204216548U (en) * | 2014-10-21 | 2015-03-18 | 广东电网有限责任公司电力调度控制中心 | The light unit of 110kV power transmission sequence OPPC wire directly draws lower device |
-
2014
- 2014-10-21 CN CN201410562756.5A patent/CN104300476B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012120333A (en) * | 2010-12-01 | 2012-06-21 | Kanefuji Sangyo Kk | Lead-in cable support |
| CN202121265U (en) * | 2011-06-03 | 2012-01-18 | 广东岱敏电网技术咨询服务中心 | Optical phase conductor photoelectric separating apparatus used for live-line work |
| CN202772510U (en) * | 2012-07-13 | 2013-03-06 | 江门市新会新宝成电气工程有限公司 | Photoelectric separation device for leading-down of optical unit of OPPC (optical phase conductor) |
| CN204216548U (en) * | 2014-10-21 | 2015-03-18 | 广东电网有限责任公司电力调度控制中心 | The light unit of 110kV power transmission sequence OPPC wire directly draws lower device |
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| CN104300476B (en) | 2015-07-15 |
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