CN208690904U - The split type and compound cross-arm in entire body formula T-type section of distribution network overhead line - Google Patents
The split type and compound cross-arm in entire body formula T-type section of distribution network overhead line Download PDFInfo
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- CN208690904U CN208690904U CN201821371309.1U CN201821371309U CN208690904U CN 208690904 U CN208690904 U CN 208690904U CN 201821371309 U CN201821371309 U CN 201821371309U CN 208690904 U CN208690904 U CN 208690904U
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 76
- 238000009826 distribution Methods 0.000 title claims abstract description 47
- 238000009413 insulation Methods 0.000 claims abstract description 70
- 239000002184 metal Substances 0.000 claims abstract description 38
- 229910052751 metal Inorganic materials 0.000 claims abstract description 38
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000010931 gold Substances 0.000 claims abstract description 32
- 229910052737 gold Inorganic materials 0.000 claims abstract description 32
- 238000005452 bending Methods 0.000 claims abstract description 26
- 239000000725 suspension Substances 0.000 claims description 2
- 239000012212 insulator Substances 0.000 description 19
- 238000010276 construction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 244000000626 Daucus carota Species 0.000 description 2
- 235000005770 birds nest Nutrition 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000005765 wild carrot Nutrition 0.000 description 2
- 238000000338 in vitro Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model provides a kind of split type and compound cross-arm in entire body formula T-type section of distribution network overhead line, wherein the split type compound cross-arm in T-type section of the distribution network overhead line includes: insulation mandrel, and section is T-type；Housing is sheathed on outside insulation mandrel；End metal fitting, first end with the first end of insulation mandrel be connected, also, the second end of end metal fitting offers the threaded hole for installing pulley block and the fixation hole for fixing pulley block；Connection gold utensil, first end are connected with the second end of insulation mandrel, also, the second end of connection gold utensil with to connector for being connected.The end face of the utility model medial end portions fitting is reserved with threaded hole and fixation hole, may make that unwrapping wire is more convenient；Also, the section of insulation mandrel is T-type, in same cross-sectional area, has better section anti-bending strength and pressure stability energy.
Description
Technical field
The utility model relates to T & D Technology field, in particular to a kind of distribution network overhead line with split type and
The compound cross-arm in entire body formula T-type section.
Background technique
Thunder and lightning induction voltage is the principal element for causing distribution network overhead line to break.Line insulation horizontal is improved to improve
The resistance to Lei Shuiping of distribution network overhead line especially avoids the problem that the important hand that route trips and breaks by indirect lightning strike
Section.With the development of composite material manufacturing technology, electrical, the mechanical property of composite material, which have, significantly to be promoted, and use is compound
Insulator crossarm carries out Lightning Transformation to route and is increasingly concerned.The application of the compound cross-arm of distribution can increase substantially route
Resistance to Lei Shuiping.
Existing compound cross arm end fitting lower part is equipped with pulley block hitch point, and pulley is outstanding when payingoff construction is in compound cross
Load lower section need to lift conducting wire, due to leading when progress conducting wire is removed by pulley and is fixed to the process of compound cross-arm from the bottom to top
Line weight is larger, thus will affect the convenience of construction.In addition, the section of the common compound cross-arm of distribution be mainly filled circles,
Open circles, solid circles and hollow rectangle, solid composite cross-arm weight is relatively large, there is certain influence to installation convenience,
Then there is the problems such as interior insulation in Hollow Compound cross-arm, there is certain influence to the safe and stable operation of route.
Utility model content
In consideration of it, that the utility model proposes a kind of distribution network overhead lines is compound with split type and entire body formula T-shape section
Cross-arm, it is intended to solve current conducting wire be fixed on when cross-arm it is inconvenient, solid composite cross-arm weight is larger and Hollow Compound is horizontal
There is interior insulation in load.
On one side, the utility model proposes a kind of split type compound cross-arm in T-type section of distribution network overhead line, this is matched
The split type compound cross-arm in T-type section of net overhead transmission line includes: insulation mandrel, and section is T-type；Housing is sheathed on insulation
Mandrel outer；End metal fitting, first end with the first end of insulation mandrel be connected, also, the second end of end metal fitting opens up
There are the threaded hole for installing pulley block and the fixation hole for fixing pulley block；Connection gold utensil, first end and insulation
The second end of plug is connected, also, the second end of connection gold utensil with to connector for being connected.
Further, above-mentioned distribution network overhead line is in the split type compound cross-arm in T-type section, and the second end of end metal fitting is also
Offer the hanging hole for pulley block suspension.
Further, above-mentioned distribution network overhead line is in the split type compound cross-arm in T-type section, and the second end of end metal fitting is also
Equipped with the first fixing groove for fixing conducting wire.
Further, above-mentioned distribution network overhead line is in the split type compound cross-arm in T-type section, end metal fitting and connection gold utensil
Section be T-type.
Further, above-mentioned distribution network overhead line is in the split type compound cross-arm in T-type section, the T-type section of insulation mandrel
Outer profile one or more straight line and and corresponding housing the curve of radian is provided with by predetermined curvature, also,
Each right angle of outer profile is set as circular arc chamfering.
Further, for above-mentioned distribution network overhead line in the split type compound cross-arm in T-type section, housing includes: both ends open
Body, be sheathed on outside insulation mandrel；Multiple full skirts, each full skirt are sheathed in vitro and along the length direction interval of body
Setting.
Further, in the split type compound cross-arm in T-type section, the second end of connection gold utensil is above-mentioned distribution network overhead line
Bending part, the first bending part of bending part and the second bending part of bending part offer the first mounting hole.
Further, in the split type compound cross-arm in T-type section, the second end of connection gold utensil is above-mentioned distribution network overhead line
Connecting plate, connecting plate offer the second mounting hole.
Further, above-mentioned distribution network overhead line is in the split type compound cross-arm in T-type section, the second end of end metal fitting
End face is provided with projection portion, and the end face of projection portion offers the second fixing groove for fixing conducting wire, the two sides difference of projection portion
It is provided with the binding slot for binding conducting wire.
In the utility model, one end of insulation mandrel is provided with end metal fitting, and the end face of end metal fitting is reserved with threaded hole
And fixation hole, in order to the end for being fitted and fixed to split type compound cross-arm of pulley block, then the conducting wire in payingoff construction
Position is higher than split type compound cross-arm, when the process that progress conducting wire is removed by pulley block and is fixed to split type compound cross-arm
When, conducting wire is from top to bottom placed on split type compound cross-arm, so that unwrapping wire is more convenient；Also, insulation mandrel
Section is T-type, can reduce product cross section area, weight under the premise of guaranteeing the anti-bending strength and interior insulation performance of itself
And cost, and compared with the rectangular section insulator crossarm of same cross-sectional area and circular cross-section insulator crossarm, the compound cross-arm in T-type section
Section anti-bending strength and pressure stability can be more excellent.
On the other hand, the utility model also proposed a kind of compound cross-arm in distribution network overhead line entire body formula T-type section, should
The compound cross-arm in distribution network overhead line entire body formula T-type section includes: the split type compound cross in T-type section of two distribution network overhead lines
Load, two distribution network overhead lines are oppositely arranged with the second end of the connection gold utensil of the split type compound cross-arm in T-type section, two distributions
Overhead transmission line is connected in series with the split type compound cross-arm in T-type section by connection gold utensil.
Since the split type compound cross-arm in T-type section of distribution network overhead line has said effect, then have the distribution aerial
The compound cross-arm in distribution network overhead line entire body formula T-type section of the split type compound cross-arm in T-type section of route should also have accordingly
Effect.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as practical to this
Novel limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is the cross-sectional view of insulation mandrel provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of level insulation cross-arm provided by the embodiment of the utility model；
Fig. 3 is the partial enlarged view of level insulation cross-arm provided by the embodiment of the utility model；
Fig. 4 is the structural schematic diagram of vertical insulator crossarm provided by the embodiment of the utility model；
Fig. 5 is the structure of the compound cross-arm in distribution network overhead line entire body formula T-type provided by the embodiment of the utility model section
Schematic diagram；
Fig. 6 is vertical insulator crossarm provided by the embodiment of the utility model and distribution network overhead line entire body formula T-type section
The arrangement schematic diagram that compound cross-arm combines.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.It should be noted that in the absence of conflict, the implementation in the utility model
Feature in example and embodiment can be combined with each other.It is below with reference to the accompanying drawings and in conjunction with the embodiments practical new this is described in detail
Type.
Level insulation cross-arm embodiment:
Referring to Fig. 1 to Fig. 3, the preferred structure of level insulation cross-arm provided in this embodiment is shown in figure.As shown,
The level insulation cross-arm includes: insulation mandrel 1, the first housing 2, end metal fitting 3 and connection gold utensil 4.Wherein, referring to Fig. 1, insulation
The section of plug 1 is T-type.Referring to fig. 2, the first housing 2 is sheathed on the outside of insulation mandrel 1, first end (Fig. 2 of end metal fitting 3
Shown in right end) be connected with the first end of insulation mandrel 1, also, referring to Fig. 3, the second end of end metal fitting 3 is (shown in Fig. 3
Left end) threaded hole 31 and fixation hole 32 are offered, pulley block is installed on end metal fitting 3 by threaded hole 31, and by solid
Determine hole 32 to be further secured on end metal fitting 3.When it is implemented, threaded hole 31 and fixation hole 32 are respectively positioned on end metal fitting 3
On the end face of second end, and threaded hole 31 is located at the top of fixation hole 32.The first end (left end shown in Fig. 2) of connection gold utensil 4
It is connected with the second end of insulation mandrel 1, the second end (right end shown in Fig. 2) of connection gold utensil 4 can be connected with to connector,
For example, being connected with power transmission rod.When it is implemented, the section of end metal fitting 3 and the section of connection gold utensil 4 are T-type, and the two
Sectional dimension and the sectional dimension of insulation mandrel 1 match.
In the present embodiment, one end of insulation mandrel 1 is provided with end metal fitting 3, and the end face of end metal fitting 3 is reserved with threaded hole
31 and fixation hole 32, in order to the end for being fitted and fixed to split type compound cross-arm of pulley block, then in payingoff construction
Lead location is higher than split type compound cross-arm, when progress conducting wire is removed by pulley block and is fixed to the work of split type compound cross-arm
When sequence, conducting wire is from top to bottom placed on split type compound cross-arm, so that unwrapping wire is more convenient；Also, insulation mandrel 1
Section be T-type, product cross section area, again can be reduced under the premise of guaranteeing itself anti-bending strength and interior insulation performance
Amount and cost, and compared with the rectangular section insulator crossarm of same cross-sectional area and circular cross-section insulator crossarm, the compound cross in T-type section
The section anti-bending strength and pressure stability of load can be more excellent.
The second end of end metal fitting 3 is also provided with hanging hole 33, and pulley block is hung in hanging hole 33, to be suspended on
On insulation mandrel 1, when it is implemented, hanging hole 33 is located at the side of the second end of end metal fitting 3.As it can be seen that hanging hole 33 is to put
Line pulley provides hitch point, and pulley block is hung in hanging hole 33 to make pulley block to avoid because of non-suspending hole 33
The problem of being suspended on cross-arm surface irregularity caused by 3 outside of end metal fitting.
Referring again to Fig. 1, one or more straight line and corresponding housing 2 of the outer profile in the T-type section of insulation mandrel 1
It is provided with the curve of radian by predetermined curvature, is accumulated to avoid external foreign matters such as bird's nests on cross-arm surface.Outer profile it is each
Right angle is set as circular arc chamfering, the problems in stress collection occurs to avoid insulation mandrel 1.When it is implemented, in order to adapt to insulate
Plug 1 has predetermined curvature, one or more straight line of the outer profile in the T-type section of end metal fitting 3 and the T of connection gold utensil 4
One or more straight line of the outer profile in type section is also provided with the curve of radian by identical predetermined curvature.End metal fitting
The top surface of 3 second end offers the first fixing groove 34 for fixing conducting wire, and the first fixing groove 34 is along the width of insulation mandrel 1
Degree direction opens up, and the first fixing groove 34 is also arc.It should be noted that predetermined curvature can determine according to actual needs,
The present embodiment does not do any row to it and limits.
Housing 2 may include: the body 21 and multiple full skirts 22 of both ends open.Wherein, body 21 is sheathed on insulation mandrel 1
Outside, multiple full skirts 22 are sheathed on outside body 21, also, each full skirt 22 is uniformly arranged along the length direction interval of body 21, full skirt
22 can increase the creepage distance of split type compound cross-arm, and have the function of separating water.When it is implemented, the section of housing 2, each
The section of full skirt 22 is T-type.
The second end of connection gold utensil 4 is bending part, the first bending part 41 of bending part and the second bending part 42 of bending part
Mounting hole 43 is offered, level insulation cross-arm can be installed on power transmission rod by each mounting hole 43.
To sum up, in the present embodiment, one end of insulation mandrel 1 is provided with end metal fitting 3, and the end face of end metal fitting 3 is reserved with
Threaded hole 31 and fixation hole 32, in order to the end for being fitted and fixed to split type compound cross-arm of pulley block, then in unwrapping wire
Lead location is higher than split type compound cross-arm when construction, when progress conducting wire is removed by pulley block and is fixed to split type compound cross
When the process of load, conducting wire is from top to bottom placed on split type compound cross-arm, so that unwrapping wire is more convenient；Also, absolutely
The section of edge plug 1 is T-type, can reduce product cross section under the premise of guaranteeing the anti-bending strength and interior insulation performance of itself
Area, weight and cost, and compared with the rectangular section insulator crossarm of same cross-sectional area and circular cross-section insulator crossarm, T-type is cut
The section anti-bending strength and pressure stability of the compound cross-arm in face can be more excellent.
Vertical insulator crossarm embodiment:
Referring to fig. 4, the preferred structure of vertical insulator crossarm provided in this embodiment is shown in figure.As shown, this point
The compound cross-arm of body formula includes: insulation mandrel 1, the first housing 2, end metal fitting 3 and connection gold utensil 4.Wherein, section of insulation mandrel 1
Face is T-type, and the first housing 2 is sheathed on the outside of insulation mandrel 1, the first end (lower end shown in Fig. 4) and insulation of end metal fitting 3
The first end (upper end shown in Fig. 4) of plug 1 is connected, also, second end (upper end shown in Fig. 4) setting of end metal fitting 3
There is projection portion 36, the end face of projection portion 36 offers the second fixing groove 37 for fixing conducting wire, two sides of projection portion 36
The binding slot 38 for binding conducting wire is then offered respectively.The first end (upper end shown in Fig. 4) and insulation mandrel of connection gold utensil 4
1 second end (lower end shown in Fig. 4) is connected, the second end (lower end shown in Fig. 4) of connection gold utensil 4 can with to connector phase
Connection.When it is implemented, the second end of connection gold utensil 4 is connecting plate 44, connecting plate 44 offers the second mounting hole 45, connecting plate
44 can be connected by the second mounting hole 45 with to connector.When it is implemented, section and the connection gold utensil 4 of end metal fitting 3
Section is T-type, and the cross sectional dimensions of the two and the cross sectional dimensions of insulation mandrel 1 match.
It should be noted that without opening up threaded hole 31, fixation hole 32 and first on the end metal fitting 3 of vertical insulator crossarm
Fixing groove 34.
In the present embodiment, the section of insulation mandrel 1 is T-type, can be in the anti-bending strength and interior insulation performance for guaranteeing itself
Under the premise of, product cross section area, weight and cost are reduced, and cut with the rectangular section insulator crossarm of same cross-sectional area and circle
Face insulator crossarm is compared, and the section anti-bending strength and pressure stability of the compound cross-arm in T-type section can be more excellent.
One or more straight line of the outer profile in the T-type section of insulation mandrel 1 and and corresponding housing 2 by default song
Rate is provided with the curve of radian, accumulates to avoid external foreign matters such as bird's nests on cross-arm surface.Each right angle of outer profile is set as
There is the problems in stress collection to avoid insulation mandrel 1 in circular arc chamfering.When it is implemented, having in advance to adapt to insulation mandrel 1
If curvature, outside the T-type section of one or more straight line and connection gold utensil 4 of the outer profile in the T-type section of end metal fitting 3
One or more straight line of profile is also provided with the curve of radian by identical predetermined curvature.It should be noted that default
Curvature can determine that the present embodiment does not do any row to it and limits according to actual needs.
First housing 2 may include: the first body 21 and multiple first full skirts 22 of both ends open.Wherein, the first body
21 are sheathed on outside insulation mandrel 1, and multiple first full skirts 22 are sheathed on outside the first body 21, also, each first full skirt 22 is along first
The length direction interval of body 21 is uniformly arranged, and the first full skirt 22 can increase the creepage distance of split type compound cross-arm, and have
Separate the effect of water.When it is implemented, the cross-sectional shape of the cross-sectional shape of the first housing 2, each first full skirt 22 is " T "
Shape.
To sum up, in the present embodiment, the section of insulation mandrel 1 is T-type, can be in the anti-bending strength and interior insulation for guaranteeing itself
Under the premise of performance, product cross section area, weight and cost, and rectangular section insulator crossarm and circle with same cross-sectional area are reduced
Tee section insulator crossarm is compared, and the section anti-bending strength and pressure stability of the compound cross-arm in T-type section can be more excellent.
The distribution network overhead line compound cross-arm embodiment in entire body formula T-type section:
Referring to Fig. 5, the compound cross-arm in distribution network overhead line entire body formula T-type provided in this embodiment section is shown in figure
Preferred structure.As shown, the compound cross-arm of entire body formula includes: two concatenated level insulation cross-arms.When it is implemented, two
The second end of the connection gold utensil 4 of level insulation cross-arm is oppositely arranged and is connected, i.e. two level insulation cross-arms pass through connection gold
Have 4 phases just to connect, it can also be respectively two which, which can be the connection gold utensil 4 of any one level insulation cross-arm,
The connection gold utensil 4 of level insulation cross-arm.
It should be noted that the specific structure and embodiment of the level insulation cross-arm in the present embodiment are referring to level insulation
Cross-arm embodiment, details are not described herein for the present embodiment.
Since the split type compound cross-arm in T-type section of distribution network overhead line has said effect, then have the distribution aerial
The compound cross-arm in distribution network overhead line entire body formula T-type section of the split type compound cross-arm in T-type section of route should also have accordingly
Effect.
The cross-arm that actual track uses is level insulation cross-arm, vertical insulator crossarm, the compound cross-arm in entire body formula T-type section
Combination, mainly includes and is not limited to following form:
1.) 2 level insulation cross-arms are combined with vertical insulator crossarm；
2.) 3 or 6 level insulation cross-arms are combined；
3.) referring to Fig. 6, the compound cross-arm in entire body formula T-type section is combined with vertical insulator crossarm；
4.) 3 compound cross-arms in entire body formula T-type section (double loop) are combined.
Obviously, it is practical without departing from this can to carry out various modification and variations to the utility model by those skilled in the art
Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to include these modifications and variations.
Claims (10)
1. a kind of split type compound cross-arm in T-type section of distribution network overhead line characterized by comprising
Insulation mandrel (1), section are T-type；
Housing (2) is sheathed on the insulation mandrel (1) outside；
End metal fitting (3), first end is connected with the first end of the insulation mandrel (1), also, the end metal fitting
(3) second end offers the threaded hole (31) for installing pulley block and the fixation hole for fixing the pulley block
(32)；
Connection gold utensil (4), first end are connected with the second end of the insulation mandrel (1), also, the connection gold utensil (4)
Second end for being connected with to connector.
2. the split type compound cross-arm in T-type section of distribution network overhead line according to claim 1, which is characterized in that
The second end of the end metal fitting (3) is also provided with the hanging hole (33) for pulley block suspension.
3. the split type compound cross-arm in T-type section of distribution network overhead line according to claim 1, which is characterized in that
The second end of the end metal fitting (3) is additionally provided with the first fixing groove (34) for fixing conducting wire.
4. the split type compound cross-arm in T-type section of distribution network overhead line according to claim 1, which is characterized in that
The section of the end metal fitting (3) and the connection gold utensil (4) is T-type.
5. the split type compound cross-arm in T-type section of distribution network overhead line according to claim 1, which is characterized in that
One or more straight line of the outer profile in the T-type section of the insulation mandrel (1) and and the corresponding housing (2) it is equal
The curve of radian is provided with by predetermined curvature, also, each right angle of the outer profile is set as circular arc chamfering.
6. the split type compound cross-arm in T-type section of distribution network overhead line according to claim 1, which is characterized in that described
Housing (2) includes:
The body (21) of both ends open, is sheathed on the insulation mandrel (1) outside；
Multiple full skirts (22), each full skirt (22) are sheathed on the body (21) outside and along the length side of the body (21)
It is arranged to interval.
7. the split type compound cross-arm in T-type section of distribution network overhead line according to any one of claim 1 to 6, special
Sign is,
The second end of the connection gold utensil (4) is bending part, the first bending part (41) of the bending part and the bending part
Second bending part (42) offers the first mounting hole (43).
8. the split type compound cross-arm in T-type section of distribution network overhead line according to any one of claim 1 to 6, special
Sign is,
The second end of the connection gold utensil (4) is connecting plate (44), and the connecting plate (44) offers the second mounting hole (45).
9. the split type compound cross-arm in T-type section of distribution network overhead line according to claim 8, which is characterized in that
The end face of the second end of the end metal fitting (3) is provided with projection portion (36), and the end face of the projection portion (36) offers
For fixing the second fixing groove (37) of conducting wire, the two sides of the projection portion (36) are separately provided for the binding of binding conducting wire
Slot (38).
10. a kind of distribution network overhead line compound cross-arm in entire body formula T-type section characterized by comprising two such as claim
The split type compound cross-arm in T-type section of distribution network overhead line described in any one of 1-7,
Two distribution network overhead lines are oppositely arranged with the second end of the connection gold utensil (4) of the split type compound cross-arm in T-type section,
Two distribution network overhead lines are connected in series with the split type compound cross-arm in T-type section by the connection gold utensil (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821371309.1U CN208690904U (en) | 2018-08-23 | 2018-08-23 | The split type and compound cross-arm in entire body formula T-type section of distribution network overhead line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821371309.1U CN208690904U (en) | 2018-08-23 | 2018-08-23 | The split type and compound cross-arm in entire body formula T-type section of distribution network overhead line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208690904U true CN208690904U (en) | 2019-04-02 |
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ID=65886470
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|---|---|---|---|
| CN201821371309.1U Active CN208690904U (en) | 2018-08-23 | 2018-08-23 | The split type and compound cross-arm in entire body formula T-type section of distribution network overhead line |
Country Status (1)
| Country | Link |
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| CN (1) | CN208690904U (en) |
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2018
- 2018-08-23 CN CN201821371309.1U patent/CN208690904U/en active Active
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