CN204156448U - A kind of support bridge line for photovoltaic plant lightning protection - Google Patents
A kind of support bridge line for photovoltaic plant lightning protection Download PDFInfo
- Publication number
- CN204156448U CN204156448U CN201420587376.2U CN201420587376U CN204156448U CN 204156448 U CN204156448 U CN 204156448U CN 201420587376 U CN201420587376 U CN 201420587376U CN 204156448 U CN204156448 U CN 204156448U
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- Prior art keywords
- bridge line
- bridge
- cable testing
- line body
- bur
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Abstract
The utility model relates to photovoltaic plant technical field, disclose a kind of support bridge line for photovoltaic plant lightning protection, for the connection of cable testing bridge, comprise sheet conductive bridge line body, the two ends of bridge line body are provided with connecting hole, the surrounding that bridge line body homonymy is positioned at connecting hole is provided with some burs, and bur place is facing to cable testing bridge, and bolt is connected with cable testing bridge through connecting hole; Bur is structure conically, and the outer surface plating of bur is provided with copper film, the contact-making surface of bridge line body and cable testing bridge also plates and is provided with copper film.When bridge line body is connected with cable testing bridge, the bur around connecting hole can insert cable testing bridge, ensures to connect reliably between the two, and can not form open circuit, long service life, lightning protection effect is good.
Description
Technical field
The utility model relates to photovoltaic plant technical field, particularly relates to a kind of support bridge line for photovoltaic plant lightning protection.
Background technology
Distributed roof photovoltaic power station, be power station form photovoltaic module being fixedly mounted on roof surface, its design and operation time is generally 25-35 years, has more mounting material to be metallic article in photovoltaic roof power station, and installation site is relatively high, photovoltaic plant has higher lightning protection requirement.At present, lightning protection link between cable testing bridge adopts copper facing core litzendraht wire usually, this kind of bridge line is easily corroded being chronically exposed to outdoor, litzendraht wire easy fracture, photovoltaic plant is made to there is certain potential safety hazard, these litzendraht wire two ends are the binding post of the zinc-plated stalloy of two panels or tagger in addition, relative with the ohmic contact between cable testing bridge poor.Cable testing bridge material common in the market has following three kinds: 1) zinc-plated crane span structure, 2) aluminum cable tray of surface oxidation treatment; 3) surface brush corrosion-inhibiting coating crane span structure.These three kinds of crane span structure surface conductance performance homogeneous phases are to poor, and all need thoroughly to remove crane span structure contact-making surface when installing lightning protection, higher to construction requirement, easily cause lightning protection poor wire connection, power station exists certain potential safety hazard.
Utility model content
The utility model, in order to overcome bridge line of the prior art and be connected unreliable between cable testing bridge, thus causes the deficiency of lightning protection properties difference, provides one and can ensure to connect between cable testing bridge reliable, long service life, the support bridge line that lightning protection effect is good.
To achieve these goals, the utility model adopts following technical scheme:
A kind of support bridge line for photovoltaic plant lightning protection, for the connection of cable testing bridge, comprise sheet conductive bridge line body, the two ends of described bridge line body are provided with connecting hole, the surrounding that bridge line body homonymy is positioned at connecting hole is provided with some burs, bur place is facing to cable testing bridge, and bolt is connected with cable testing bridge through connecting hole.When bridge line body is connected with cable testing bridge, the bur around connecting hole can insert cable testing bridge, ensures to connect reliably between the two, can not form open circuit, long service life.
As preferably, described bur conically structure, the outer surface plating of bur is provided with copper film, the contact-making surface of bridge line body and cable testing bridge also plates and is provided with copper film.Bur plated surface copper film gets on, and the resistivity of copper is low, ensures good ohmic contact; Copper plating film on contact-making surface between the two, owing to needing to remove its joint face place oxide layer before cable testing bridge connection, after cleaning, the roughness at joint face place is higher, and copper product matter is soft, copper film and the coarse surface of cable testing bridge are fitted after pressurized, and the outer surface of copper film can extend and to fit completely with cable testing bridge surface, connect more reliable between the two, almost gapless after connection, extraneous air, moisture also not easily enter joint face place, thus ensure good electrical connection.
As preferably, the resistivity of described bridge line body is less than or equal to 0.025 Ω .m.Bridge line body is stainless steel material, and self-strength is large, not easily getting rusty, adopting the material of this resistivity to be also to reduce resistance, reduces the heat produced when electric current flows through.
As preferably, be provided with metallic gasket between described bolt and bridge line body, the inner side of described metallic gasket is provided with bulge loop, and the radius of described bulge loop is equal to the distance at connecting hole center with bur, and the outside of metallic gasket is provided with location dimples.After bolt tightening, the opposite side of the contact-making surface of the bulge loop on metallic gasket and bridge line body is just in time the position that bur distributes, thus strengthens pressurized to bur, when making to connect, bur can thrust cable testing bridge surface smoothly, prevents the most advanced and sophisticated pressurized of bur and causes the body distortion of bridge line.
As preferably, be also provided with gasket seal between the medial surface of described metallic gasket and bridge line body, described gasket seal is teflon gasket.Gasket seal effectively can prevent extraneous air, moisture enters into joint face from connection hole, prevents joint face place be oxidized, gets rusty, corrosion etc., and both guarantees are stablized, connected reliably, long service life.
Therefore, it is reliable that the utility model has connection between guarantee cable testing bridge, long service life, the beneficial effect that lightning protection effect is good.
Accompanying drawing explanation
Fig. 1 is the connection diagram of support bridge line and cable testing bridge.
Fig. 2 is the structural representation of bridge line.
Fig. 3 is A-A place cutaway view in Fig. 1.
In figure: bridge line body 1 connecting hole 2 bur 3 bolt 4 copper film 5 metallic gasket 6 gasket seal 7 spherical nut 40 bulge loop 60 location dimples 61 cable testing bridge 8
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described:
A kind of support bridge line for photovoltaic plant lightning protection as depicted in figs. 1 and 2, comprise sheet conductive bridge line body 1, the two ends of bridge line body 1 are provided with connecting hole 2, the surrounding that bridge line body homonymy is positioned at connecting hole is provided with some burs 3, some burs are distributed on the concentric circles corresponding with connecting hole, bur 3 place is facing to cable testing bridge, and bolt 4 is connected with cable bridge 8 frame through connecting hole, and the outer end of bolt is locked by spherical nut 40; Bur 3 conically structure, the outer surface plating of bur is provided with copper film, the contact-making surface of bridge line body 1 and cable testing bridge also plates and is provided with copper film 5.The resistivity of bridge line body is less than or equal to 0.025 Ω .m, and in the present embodiment, bridge line body is made up of stainless steel material, and its resistivity is 0.02 Ω .m.
As shown in Figure 3, metallic gasket 6 is provided with between bolt 4 and bridge line body, the inner side of metallic gasket 6 is provided with bulge loop 60, the radius of bulge loop is equal to the distance at connecting hole center with bur, the outside of metallic gasket is provided with location dimples 61, and be also provided with gasket seal 7 between the medial surface of metallic gasket 6 and bridge line body, gasket seal is positioned at bulge loop, gasket seal is teflon gasket, and teflon gasket has good heat resistance.
Bridge line body is connected with cable testing bridge by bolt, during bolt tightening, bulge loop on metallic gasket is pressed in outside bridge line body, thus makes bur can insert cable testing bridge surface, and before cable testing bridge connects, its joint face place first clears up oxide layer, the joint face of cable testing bridge is more coarse, during bolt tightening, copper film is squeezed and fits completely with matsurface, thus causes both joint faces to seal very much, extraneous air, moisture cannot enter, and ensure good electrical connection between the two; Gasket seal 7 effectively can prevent extraneous air, moisture enters in joint face from connection hole, therefore can not be oxidized between joint face, gets rusty, corrode, and connects reliable.Therefore, it is reliable that the utility model has connection between guarantee cable testing bridge, long service life, the beneficial effect that lightning protection effect is good.
Claims (5)
1. the support bridge line for photovoltaic plant lightning protection, for the connection of cable testing bridge, it is characterized in that, comprise sheet conductive bridge line body, the two ends of described bridge line body are provided with connecting hole, the surrounding that bridge line body homonymy is positioned at connecting hole is provided with some burs, and bur place is facing to cable testing bridge, and bolt is connected with cable testing bridge through connecting hole.
2. a kind of support bridge line for photovoltaic plant lightning protection according to claim 1, is characterized in that, described bur conically structure, and the outer surface plating of bur is provided with copper film, the contact-making surface of bridge line body and cable testing bridge also plates and is provided with copper film.
3. a kind of support bridge line for photovoltaic plant lightning protection according to claim 1 and 2, it is characterized in that, the resistivity of described bridge line body is less than or equal to 0.025 Ω .m.
4. a kind of support bridge line for photovoltaic plant lightning protection according to claim 1 and 2, it is characterized in that, metallic gasket is provided with between described bolt and bridge line body, the inner side of described metallic gasket is provided with bulge loop, the radius of described bulge loop is equal to the distance at connecting hole center with bur, and the outside of metallic gasket is provided with location dimples.
5. a kind of support bridge line for photovoltaic plant lightning protection according to claim 4, it is characterized in that, be also provided with gasket seal between the medial surface of described metallic gasket and bridge line body, described gasket seal is teflon gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420587376.2U CN204156448U (en) | 2014-10-11 | 2014-10-11 | A kind of support bridge line for photovoltaic plant lightning protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420587376.2U CN204156448U (en) | 2014-10-11 | 2014-10-11 | A kind of support bridge line for photovoltaic plant lightning protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204156448U true CN204156448U (en) | 2015-02-11 |
Family
ID=52514537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420587376.2U Expired - Fee Related CN204156448U (en) | 2014-10-11 | 2014-10-11 | A kind of support bridge line for photovoltaic plant lightning protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204156448U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107546688A (en) * | 2017-08-21 | 2018-01-05 | 中车唐山机车车辆有限公司 | Sealing structure |
-
2014
- 2014-10-11 CN CN201420587376.2U patent/CN204156448U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107546688A (en) * | 2017-08-21 | 2018-01-05 | 中车唐山机车车辆有限公司 | Sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20171011 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |