CN206987468U

CN206987468U - A kind of OPGW optical cable transformer substation side frameworks with lightning protection component

Info

Publication number: CN206987468U
Application number: CN201720837230.2U
Authority: CN
Inventors: 何海波; 林正华
Original assignee: China Power Engineering Consulting Group East China Electric Power Design Institute Co Ltd
Current assignee: China Power Engineering Consulting Group East China Electric Power Design Institute Co Ltd
Priority date: 2017-07-11
Filing date: 2017-07-11
Publication date: 2018-02-09
Anticipated expiration: 2027-07-11

Abstract

It the utility model is related to a kind of OPGW optical cable transformer substation side frameworks with lightning protection component, the OPGW optical cables downlead laid from the top down including framework, along framework, the first the second ground wire and the 3rd ground wire and framework grounding copper bar for being grounded, being connected in OPGW optical cables downlead with framework bottom being connected in OPGW optical cable downlead upper ends with framework upper end, also include the first ground terminal and the second ground terminal, the described first ground wire is connected by the first ground terminal with framework；Described the second ground wire, the 3rd ground wire and grounding copper bar is connected by the second ground terminal with framework.The beneficial effects of the utility model are, enhance the bonding strength of OPGW optical cables Special grounding wire and framework, avoid and rubbed between OPGW optical cables and door framework, realize under OPGW optical cables draw the effective electrical isolation between door framework, safety-type height, it is simple in construction, it is easy to construct, facilitates later stage operation maintenance.

Description

A kind of OPGW optical cable transformer substation side frameworks with lightning protection component

Technical field

It the utility model is related to a kind of OPGW optical cable transformer substation side frameworks with lightning protection component.

Background technology

Basic support platform of the power telecom network as unified strong intelligent grid, is ensureing electric power netting safe running, market Marketing and company's modern management etc. play an important role.Fiber optic communication is high with its transmission frequency bandwidth, anti-interference With signal attenuation it is small the characteristics of, be much better than cable, the transmission means of microwave communication, it has also become Primary communication side in power communication Formula.

The cable resource that fiber optic communication is depended in power telecom network, in power telecom network, utilizes transmission line of electricity frame more If OPGW mode completes the erection of optical cable.In this mode, aerial earth wire and optical cable are complex as a whole, in transmission line of electricity both sides Transformer station, be utilized respectively gate framework in station and OPGW is drawn be connected in station, with guiding optical cable welding in station, and lay to machine Room, so as to form transformer station to the fiber channel of transformer station.Compared with setting up optical cable using other modes, which, which both shortened, to be applied The work duration saves operating expenses again, therefore, there is more application on newly-built circuit.

The interface that gate framework is constructed with interior guiding optical cable construction of standing as circuit OPGW in Substation Station, OPGW optical cables Into after gate framework, under drawing along framework.Because of construction technology and standard disunity, different substation OPGW optical cables are done under drawing Method differs greatly, often occur optical cable fix loosely, optical cable the potential safety hazard such as contact with framework, cause generation OPGW light after putting into operation Phenomena such as cable is burned out, punctured.

In the mounting design of OPGW optical cables, to consider to prevent because of the property of the cause influence optical fiber such as wire distortion and pressure Energy.Transformer station's gate framework is both the tie point that OPGW steps into transformer station from line terminal tower, while is also line side OPGW light The tie point of cable and guiding optical cable in station, the structure design of the interface and the quality of technique turn into the key for influenceing optical fiber quality One of point.

Generally, OPGW optical cables from framework draw under when, using anchor ear and match between framework in OPGW optical cables and station Holding clamp is fixed, and optical cable is insulated in framework flange by electro-insulating rubber, is no less than with frame member spacing 20mm；Optical cable in framework top, bottom fixing point (before remaining cable) and optical cable end respectively by the Special grounding wire of matching, three Point is reliably electrically connected with framework, needs to configure 4 ground terminals on transformer substation framework, as shown in Figure 1.Including application number " 201410171981.6 ", application publication number " CN103928896A " are entitled, and " OPGW optical cables access transformer substation framework is anti-lightning strike The invention of stranded method ", disclosed and this mounting structure.

In practice, have the following disadvantages：

(1) spacing of OPGW optical cables and framework is nearer, causes optical cable to occur with the situation that framework rubs, OPGW occurs Cable configuration damages, and then has influence on the quality of optical fiber.

(2) OPGW optical cables Special grounding wire is connected unreliable with the ground terminal reserved on framework, and single nut is fixed, joint Easily loosen, cause the security of OPGW optical cables hidden danger to be present.

(3) ground terminal is connected through door framework with grounding net of transformer substation, with the erosion of natural environment (air, rainwater), Earthing effect declines.

Utility model content

The purpose of this utility model is overcome the deficiencies in the prior art, prevents potential risk, there is provided a kind of new use The normalization integrated ground terminal of OPGW optical cables reliable ground at framework, and more reliable draw lower fixation for OPGW optical cables Mode.

To reach above-mentioned purpose, the utility model proposes a kind of OPGW optical cable transformer substation side structures with lightning protection component Frame, including framework, laid from the top down along framework OPGW optical cables downlead, in OPGW optical cable downlead upper ends and framework upper end First ground wire of connection, the second ground wire and the 3rd ground wire and structure being connected in OPGW optical cables downlead with framework bottom Frame grounding copper bar, in addition to the first ground terminal and the second ground terminal, the described first ground wire pass through the first ground terminal It is connected with framework；Described the second ground wire, the 3rd ground wire and grounding copper bar is connected by the second ground terminal with framework.

Framework ground terminal typically has four in the prior art, be respectively used to architecturally portion connection first ground wire, Connection second is grounded, connects framework grounding copper in the ground wire of framework middle and lower part connection the 3rd and in framework bottom in the middle part of framework Arrange (framework ground wire), this mode, which is grounded, easily causes wiring confusion, is arranged for installation personnel and reparation personnel Wire harness is all inconvenient, and everyone connection custom is different, and connection type is also very strange, is not quite similar, to follow-up dimension Shield causes certain difficulty.Framework ground terminal is optimized for two by scheme of the present utility model from 4, and physics of constructing O'clock it is optimized for 1 point by 3 points.That is OPGW in framework top ground terminal with conventional consistent, two in framework bottom of OPGW Ground terminal and framework ground terminal are arranged on the same physical points in framework bottom, i.e. the second ground terminal.

Preferably, the second described ground terminal, which is provided with, is used for the double thread hole of the ground wire of connection second, for connecting The double thread hole of grounding copper bar and the double thread hole for connecting the 3rd ground wire；Second ground wire is provided with diplopore line Folder, the diplopore wire clamp of the second screwed hole are connected by two bolts with the double thread hole for fixing the second ground wire；Described Three ground wires are provided with diplopore wire clamp, and the diplopore wire clamp of the 3rd screwed hole fixes the 3rd ground wire by two bolts with being used for Double thread hole connects；There are two bolts that grounding copper bar is fixed on into double spiral shells of second ground terminal for dead earth copper bar In pit.

Ground terminal is grounded using double screw ground terminals, two ground terminals of the OPGW optical cables in framework bottom with framework Copper bar is linked together by the second ground terminal, and more conventional ground terminal separates with framework grounding copper bar, is connected to The way of framework, earthing effect is more preferably.Because the second ground terminal is metal in the utility model, connect equivalent to by second Ground wire, the 3rd ground wire connect with grounding copper bar, have more preferable effect.

And found when considering and connecting simultaneously, only just being returned in conplane arrangement has more firm effect, because If in practice, it has been found that gathering into folds and fixing three, it is easy to cause to loosen, therefore of the present utility model be preferable to carry out It is that three are grounded as same plane and are fixed respectively to be handled in example.

Preferably, the second described ground terminal is welded in framework bottom.

The ground terminal of transformer substation framework bottom normalizes earthing member using double screws, need to meet 2 points of OPGW optical cables simultaneously Grounding requirement and the framework grounding requirement of a bit.The ground terminal welds architecturally.When installing ground wire, OPGW is utilized Optical cable Special grounding wire is reliably connected with the ground terminal, is reliably connected with transformer station main grounding grid using framework Special grounding copper bar Connect.

Preferably, the second described ground terminal is provided with the screwed hole of two rows three row, between having between each column screwed hole Away from.

Preferably, the first described ground terminal, which is provided with, is used for the double thread hole that connection first is grounded, and described first Ground wire is provided with diplopore wire clamp, and the diplopore wire clamp of the first screwed hole passes through two bolts and pair for fixing the first ground wire Screwed hole connects.

Preferably, the section of the first described ground terminal and the second ground terminal is] shape.

Preferably, drop wire clip is arranged on described downlead, passes through tape insulation between described drop wire clip and framework The strain insulator-string connection of son.

Preferably, distance is more than 500mm between drop wire clip and framework.

OPGW optical cables strain hardware fitting using tape insulation strain insulator-string, optical cable draw under when and transformer substation framework component between Away from up to d=0.5m, to realize effective electrical isolation of OPGW optical cables and transformer substation framework, OPGW optical cables are prevented and have been rubbed with framework The phenomenon of wiping.

OPGW optical cable grounds terminal simple and beautiful of the present utility model, is combined with framework ground terminal, and using double spiral shells Hole is fixed, and effectively enhances the bonding strength of OPGW optical cables Special grounding wire and framework.Propose OPGW optical cables and transformer station By the fixed form of the strain insulator-string of the insulator type drop wire clip and tape insulation of matching between framework, prevent OPGW optical cables with Framework rubs.

Way under transformer station's gate framework OPGW optical cables draw does not have unified technological standards, causes optical cable often occur to consolidate It is fixed loosely, optical cable the potential safety hazard such as contact with framework.New OPGW optical cables transformer substation framework proposed by the present invention draw lower method with Lightning protection component, these problems are efficiently solved, realize being reliably connected for OPGW optical cables and transformer station's gate framework, it is real Show OPGW optical cables and draw lower electrical isolation effective between door framework.

The art of this patent advantage is as follows：

(1) it is same in the ground terminal of door framework bottom two and framework grounding copper bar to be arranged on framework bottom for OPGW optical cables Physical points, reduce ground terminal quantity, reduce difficulty of construction, meanwhile, improve the lightning protection effects of OPGW optical cables；

(2) OPGW optical cables draw the lower fixed form using strain hardware fitting, and OPGW optical cables draw lower reachable with door framework spacing 0.5m, effective electrical isolation is realized, and avoid and rubbed between OPGW optical cables and door framework；

(3) double screw ground terminals, are connected firmly, safe；

(4) OPGW optical cables are easy to later stage operation maintenance in the wiring of framework bottom.

The beneficial effects of the utility model are to enhance the bonding strength of OPGW optical cables Special grounding wire and framework, are avoided Rubbed between OPGW optical cables and door framework, realize under OPGW optical cables draw the effective electrical isolation between door framework, it is safety-type Height, it is simple in construction, it is easy to construct, facilitates later stage operation maintenance.

It should be understood that in the scope of the utility model, above-mentioned each technical characteristic of the present utility model and below (such as implementation Mode) in specifically describe each technical characteristic between can be combined with each other, so as to form new or preferable technical scheme.Limit In length, no longer tire out one by one state herein.

Brief description of the drawings

Fig. 1 is the structural representation of OPGW frameworks in the prior art；

Fig. 2 is the structural representation of OPGW frameworks in the utility model；

Fig. 3 a are the front views of the first ground terminal in the utility model；

Fig. 3 b are the side views of the first ground terminal in the utility model；

Fig. 4 a are the front views of the second ground terminal in the utility model；

Fig. 4 b are the side views of the second ground terminal in the utility model；

Wherein：

1 '-framework 2 '-the first is grounded 3 '-the first ground terminals

4 '-the second ground wire 5 '-the second ground terminals 6 '-the three ground wires

The ground terminal of 7 '-the three 8 '-framework of ground terminal grounding copper bar 9 '-the four

10 '-connector box 11 '-remaining cable 12 '-coating steel pipe of frame

13 '-optical cable

1- frameworks 2- first is grounded the ground terminals of 3- first

4- second is grounded 5- the 3rd and is grounded the ground terminals of 6- second

Cable frame more than 7- framework grounding copper bar 8- connector boxs 9-

10- coating steel pipe 11- downlead 12- parallel groove clamps

13- drop wire clip 14- strain insulator-strings

-

Embodiment

The utility model draw for transformer station's gate framework OPGW optical cables under when the optical cable that often occurs fix loosely, optical cable The present situation of potential safety hazard such as contact with framework, creatively invented new transformer substation framework OPGW optical cables draw lower method with it is anti- Thunder earthing component, improve the security reliability of the fixation between OPGW optical cables and framework.

Term is explained

OPGW：OPGW (Optical fiber composition overhead ground wires)。

Power telecom network：Power telecom network is the private network communication for serving power system, is the important composition portion of power network Point, mainly including fiber cable network, transmission network, business network, supporting network etc..

Transformer substation framework：A kind of supporting construction in transformer station, for hang conductor, support conductor or switchgear and its The braced frame combination of his electrical equipment.

Insulator：A kind of special insulation control, for supporting and fixed conductor, make to have between conductor and the earth enough Distance simultaneously keeps insulating.

A kind of OPGW optical cable transformer substation side frameworks with lightning protection component as described in Fig. 1 to 4, including framework 1, The downlead 11 of OPGW optical cables is laid from the top down along framework 1, and the downlead 11 of OPGW optical cables passes through parallel groove clamp on top It is connected with the first ground wire, and is fixed on by drop wire clip 13 and the strain insulator-string 14 with insulator on framework 1, framework 1 On from top to bottom each 3~5m one drop wire clip 13 is installed, ensure that the spacing d of OPGW optical cables downlead 1 and framework 1 exists More than 500mm.11 bottoms of OPGW optical cables downlead are unnecessary to be partially around on remaining cable frame 9, and remaining cable frame 9 should be guaranteed that OPGW light It is insulation between cable downlead 11 and framework 1.The connecting portion of the lower end of OPGW optical cables downlead 11 is by connector box 8 and without metal Optical cable connects, and above-mentioned connector box 8 should be ensured that what is insulated when between OPGW optical cables downlead 11 and framework 1.Under OPGW optical cables draw One first ground wire 2 is connected between the upper end of line 11 and the upper end of framework 1, second is connected between the bottom of OPGW optical cables downlead 11 The ground wire 5 of ground wire 4 and the 3rd.Put a section coating steel pipe 10 on metal free optical fiber cable, coating steel pipe 10 and metal free optical fiber cable it Between space in filling and blocking material.The line frame that OPGW optical cables correspond to side is connect with the grounded screen of transformer substation framework 1 by framework Ground copper bar 7 connects.Also include the first ground terminal 3 and the second ground terminal 6 welded with framework 1.The section of first ground terminal 3 For] shape, the double thread hole for connecting the first ground wire 2 is which is provided with, the first ground wire 2 is from for connecting the first ground wire Double thread hole is fixed by two bolts and the diplopore wire clamp on the first ground wire 2.The section of second ground terminal 6 is also] shape, its The screwed hole of two rows three row is provided with, there is spacing between each column screwed hole, is used to connect wherein the second ground terminal 6 is provided with Double thread hole, the double thread hole for connecting grounding copper bar 7 and the double spiral shells for connecting the 3rd ground wire 5 of second ground wire 4 Pit；Second ground wire is fixed the earthing clamp that second is grounded on 4 with Second terminal 6 by two bolts；It is described 3rd ground wire is fixed the earthing clamp that the 3rd is grounded on 5 with Second terminal 6 by two bolts.

Framework ground terminal typically has four in the prior art, be respectively used to architecturally portion connection first ground wire 2 ', The second ground wire 4 ' is connected at the middle part of framework 1 ', is connected in the ground wire 6 ' of the middle and lower part of framework 1 ' connection the 3rd and in framework bottom Framework grounding copper bar 8 ' (framework ground wire), this mode, which is grounded, easily causes wiring confusion, for installation personnel and reparation Arrange wire harness for personnel to be all inconvenient, and everyone connection custom is different, connection type is also very strange, phase not to the utmost Together, certain difficulty is caused to follow-up maintenance.Framework ground terminal is optimized for two by scheme of the present utility model from 4, And physical points of constructing are optimized for 1 point by 3 points.That is OPGW is in framework top ground terminal with conventional consistent, and OPGW is in structure Two ground terminals and framework ground terminal of frame bottom are arranged on the same physical points in framework bottom, i.e. the second ground terminal 6.

OPGW optical cables strain hardware fitting using tape insulation strain insulator-string, optical cable draw under when and transformer substation framework component between Away from up to 0.5m, to realize effective electrical isolation of OPGW optical cables and transformer substation framework, OPGW optical cables and framework friction are prevented Phenomenon.

Preferred embodiment of the present utility model is described in detail above, it is understood that understanding this practicality newly reading After the above-mentioned instruction content of type, those skilled in the art can make various changes or modifications to the utility model, and these are of equal value Form equally falls within the application appended claims limited range.

Claims

1. a kind of OPGW optical cable transformer substation side frameworks with lightning protection component, including framework, lay from the top down along framework OPGW optical cables downlead, be connected in OPGW optical cable downlead upper ends with framework upper end the first ground wire, draw in OPGW optical cables Offline the second ground wire and the 3rd ground wire and framework grounding copper bar being connected with framework bottom, it is characterised in that also include First ground terminal and the second ground terminal, the described first ground wire are connected by the first ground terminal with framework；Described Second ground wire, the 3rd ground wire and grounding copper bar are connected by the second ground terminal with framework.

2. the OPGW optical cable transformer substation side frameworks according to claim 1 with lightning protection component, it is characterised in that institute The second ground terminal stated is provided with double thread hole, the double thread hole for connecting grounding copper bar for being used for connecting the second ground wire With the double thread hole for connecting the 3rd ground wire；Second ground wire is provided with diplopore wire clamp, the diplopore of the second screwed hole Wire clamp is connected by two bolts with the double thread hole for fixing the second ground wire；3rd ground wire is provided with diplopore line Folder, the diplopore wire clamp of the 3rd screwed hole are connected by two bolts with the double thread hole for fixing the 3rd ground wire；There are two Grounding copper bar is fixed on second ground terminal and is used in the double thread hole of dead earth copper bar by bolt.

3. the OPGW optical cable transformer substation side frameworks according to claim 2 with lightning protection component, it is characterised in that institute The second ground terminal stated is welded in framework bottom.

4. the OPGW optical cable transformer substation side frameworks according to claim 2 with lightning protection component, it is characterised in that institute The second ground terminal stated is provided with the screwed hole of two rows three row, has spacing between each column screwed hole.

5. the OPGW optical cable transformer substation side frameworks according to claim 1 with lightning protection component, it is characterised in that institute The first ground terminal stated is provided with the double thread hole for being used for connecting the first ground wire, and first ground wire is provided with diplopore line Folder, the diplopore wire clamp of the first screwed hole are connected by two bolts with the double thread hole for fixing the first ground wire.

6. the OPGW optical cable transformer substation side frameworks according to any one of claims 1 to 4 with lightning protection component, its feature It is, the section of the first described ground terminal and the second ground terminal is] shape.

7. the OPGW optical cable transformer substation side frameworks according to any one of claims 1 to 4 with lightning protection component, its feature It is, drop wire clip is arranged on described downlead, passes through the strain insulator-string of tape insulation between described drop wire clip and framework Connection.

8. the OPGW optical cable transformer substation side frameworks according to claim 7 with lightning protection component, it is characterised in that draw Distance is more than 500mm between drop wire clip and framework.