CN105735731B - A kind of double T connection steel pipe poles in double loop - Google Patents
A kind of double T connection steel pipe poles in double loop Download PDFInfo
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- CN105735731B CN105735731B CN201610257729.6A CN201610257729A CN105735731B CN 105735731 B CN105735731 B CN 105735731B CN 201610257729 A CN201610257729 A CN 201610257729A CN 105735731 B CN105735731 B CN 105735731B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 61
- 239000010959 steel Substances 0.000 title claims abstract description 61
- 239000004020 conductor Substances 0.000 claims abstract description 45
- 230000002146 bilateral Effects 0.000 claims abstract description 11
- 239000012212 insulator Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 2
- 230000001131 transforming Effects 0.000 description 2
- 101700078171 KNTC1 Proteins 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/24—Cross arms
-
- 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
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/20—Spatial arrangements or dispositions of lines or cables on poles, posts, or towers
Abstract
A kind of double T connection steel pipe poles in double loop, including shaft, the shaft is disposed with four layers of bilateral cross-arm on major loop from top to bottom, wherein first layer is ground wire cross-arm, for hanging earthing conductor, second to the 4th layer is followed successively by topping wire cross-arm, middle layer conductor cross-arm and lower layer conductor cross-arm, is respectively used to upper phase, middle phase and the lower phase conductor of mounting major loop；The shaft is additionally provided with the cross-arm that at least three couples of T take back road, it is followed successively by branch's ground wire cross-arm, offset upper layer wire jumper cross-arm and offset lower layer wire jumper cross-arm from top to bottom, at least three couples of T take back the cross-arm of road perpendicular to the plane where four layers of bilateral cross-arm.
Description
Technical field
The present invention relates to ultra-high-tension power transmission lines to set up field, and in particular to a kind of double T connection steel pipe poles in double loop.
Background technology
With the rapid development of economy, the scale and density of transmission line of electricity are also continuing to increase, in order to economize the land resource,
Backbone mostly uses the erection of same tower (bar) double back in ultra-high-tension power transmission line, and branch line T is connected on basic routing line, and it is aerial that T connects double back
There are two types of circuit realization method is general：First, a base double loop cable T connection steel pipe poles are created below existing double back overhead transmission line,
Then two side loops are connect using cable pole-climbing T；It is connect second is that creating the double T in a base routine double loop below existing double back overhead transmission line
Then steel pipe pole takes back road using wire jumper around T is skipped to.First way, due to the use of cable, project cost can increase,
It has been additionally formed aerial cable composite electric network, had not only increased power grid O&M difficulty and cost, but also reducing operation of power networks can
By property；The second way, the double T steel pipe poles of conventional double back are on the basis of conventional four layers of main line cross-arm of double loop steel pipe pole, in T
It connecing direction and replaces with main line cross-arm and increase four layers of T and connect cross-arm, i.e. one layer of main line cross-arm, one layer of T connect cross-arm and are alternately arranged, due to
The double T steel pipe pole main lines upper layer cross-arm height of conventional double back are higher, to ensure line security, generally require to adjacent existing shaft tower into
Row increases transformation, and which not only adds engineering construction difficulty, have also raised project cost.
In view of the above-mentioned problems, Chinese patent application CN104563577A discloses a kind of double T bars of high-tension line, double T bars
It is horizontal including conducting wire on conducting wire cross-arm on montant and lightning-arrest line bracket, former circuit, middle conducting wire cross-arm, lower wire cross-arm, double T circuits
Load, middle conducting wire cross-arm, lower wire cross-arm are in symmetry shape from top to bottom on montant and are spaced the lightning-arrest line bracket of installation, former circuit
Conducting wire cross-arm on upper conducting wire cross-arm, double T circuits, conducting wire cross-arm, former circuit lower wire in conducting wire cross-arm, double T circuits in former circuit
Cross-arm and double T circuit lower wire cross-arms, on line bracket of taking shelter from the thunder, former circuit in conducting wire cross-arm, former circuit under conducting wire cross-arm, former circuit
Conducting wire cross-arm is with conducting wire cross-arm, double T circuits lower wire cross-arms in conducting wire cross-arm, double T circuits on double T circuits in right-angled intersection point
Cloth makes former circuit keep original arrangement mode constant, but vertical range doubles between line, and in former circuit cross-arm vertical direction
Upper setting cross-arm is connected to so that circuit draws on double directions T, is connected in the air with loop line road, different circuit circuit is connected in the air
It connects, the right-angled intersection in the air of different circuit circuit, although the program is solved connects two side loops with cable pole-climbing T, reduces work
The problem of journey cost, operation of power networks reliability is improved, but due in the case where the original arrangement mode of main line is constant, between line
Vertical range increases one times, causes upper layer cross-arm height and increases, increases the upper pulling force of conducting wire between steel pipe pole, to ensure line
Road safety, needs to carry out increasing transformation to adjacent existing shaft tower, also increases engineering construction difficulty and project cost cost.
Invention content
Therefore, the technical problem to be solved in the present invention is to overcome between the double T connection steel pipe pole cross-arms in double loop in the prior art
Gap extended height, makes that the upper pulling force between steel pipe pole between conducting wire constantly increases and engineering construction difficulty increases with project cost cost
Defect.
In view of this, the present invention provides a kind of double loop double T connection steel pipe poles, including shaft, the shaft from top to bottom according to
Secondary four be provided on major loop layer bilateral cross-arm, wherein first layer be ground wire cross-arm, be used for hanging earthing conductor, second to the 4th layer
Be followed successively by topping wire cross-arm, middle layer conductor cross-arm and lower layer conductor cross-arm, be respectively used to the mounting upper phase of major loop, middle phase and
Lower phase conductor；The shaft is additionally provided with the cross-arm that at least three couples of T take back road, and it is horizontal to be followed successively by branch's ground wire from top to bottom
Load, offset upper layer wire jumper cross-arm and offset lower layer wire jumper cross-arm, the cross-arm that at least three couples of T take back road hang down
Directly in the plane where four layers of bilateral cross-arm.
Further, branch's ground wire cross-arm is arranged in the upper end of the rod body of steel pipe rod.
Further, the offset upper layer wire jumper cross-arm is arranged in the ground wire cross-arm and the topping wire cross-arm
Between and close to ground wire cross-arm side.
Further, the offset lower layer wire jumper cross-arm is arranged below the lower layer conductor cross-arm, close to described
Lower layer conductor cross-arm side.
Further, the double T being connected on the steel pipe pole connect loop ground by branch's ground wire cross-arm, shaft and
Ground wire cross-arm is connected with major loop ground wire.
Further, by exhausted between the offset upper layer wire jumper cross-arm and the offset lower layer wire jumper cross-arm
The shunting busbar of edge and conducting wire composition vertical direction.
Further, the shunting that the major loop conducting wire being connected on the steel pipe pole skips to the vertical direction through wire jumper is female
On line and double T are connected through wire jumper by the shunting busbar and take back line conductor.
A kind of double T connection steel pipe poles in double loop of present invention offer are divided successively by the four layers of bilateral cross-arm of steel pipe pole from top to bottom
Other hanging earthing conductor, upper phase conductor, middle phase conductor and lower phase conductor, where four layers of bilateral cross-arm in the vertical plane of plane by
Top to bottm is disposed at least three cross-arms, is followed successively by branch's ground wire cross-arm, offset upper layer wire jumper cross-arm from top to bottom
And offset lower layer wire jumper cross-arm, road is taken back for meeting the double T of direction extraction to double T, is ensureing each phase conductor safe distance
Under state, the cross-arm quantity in direction is connect by reducing double T, utmostly reduces the double T connection steel pipe pole major loops of double back high-tension line
The height that road cross-arm is taken back with double T, to reduce upper pulling force, engineering construction difficulty and the project cost of conducting wire between steel pipe pole at
This.
Description of the drawings
In order to make the content of the present invention more clearly understood, it below according to specific embodiments of the present invention and combines
Attached drawing, the present invention is described in further detail, wherein
Fig. 1 is a kind of double T connection steel pipe pole major loop front views in double loop provided in an embodiment of the present invention；
Fig. 2 is that a kind of double T connection steel pipe poles T in double loop provided in an embodiment of the present invention take back road front view；
Fig. 3 is a kind of double T connection steel pipe pole floor map in double loop provided in an embodiment of the present invention；
Fig. 4 is a kind of a-quadrant detail enlarged diagram of the double T connection steel pipe poles in double loop in Fig. 3.
Specific implementation mode
The embodiment of the present invention provides a kind of double loop double T connection steel pipe poles, as shown in Figure 1, including shaft 1, ground wire cross-arm 2,
Topping wire cross-arm 3, middle layer conductor cross-arm 4, lower layer conductor cross-arm 5, branch's ground wire cross-arm 6, offset upper layer wire jumper cross-arm 7
And offset lower layer wire jumper cross-arm 8,
Wherein, four layers of bilateral cross-arm on steel pipe pole major loop, ground wire cross-arm 2 are used for hanging earthing conductor, play lightning protection function,
Topping wire cross-arm 3 is used for for mounting phase conductor, middle layer conductor cross-arm 4 for phase conductor in mounting, lower layer conductor cross-arm 5
The lower phase conductor of mounting takes back road being disposed with double T where the four floor bilateral cross-arm in the vertical plane of plane from top to bottom
On at least three cross-arms, be followed successively by branch's ground wire cross-arm 6, offset upper layer wire jumper cross-arm 7 and offset from top to bottom
Lower layer's wire jumper cross-arm 8, at least three cross-arms that four layers of bilateral cross-arm on the major loop take back road with double T are in space
Vertical distribution.
The double T connection steel pipe poles in double loop provided in this embodiment are reduced double in the state of ensureing each phase conductor safe distance
T connects the cross-arm quantity in direction, the double T steel pipe pole cross-arm height of double back high-tension line is reduced, to reduce engineering construction difficulty, steel
The upper pulling force of high-voltage conducting wires between tube rod, has saved project cost cost.
Preferably, branch's ground wire cross-arm 6 is arranged on the upper end of the rod body of steel pipe rod 1, the offset upper layer
Wire jumper cross-arm 7 is arranged between the ground wire cross-arm 2 and the topping wire cross-arm 3 and close to 2 side of the ground wire cross-arm, institute
It states offset lower layer wire jumper cross-arm 8 to be arranged below the lower layer conductor cross-arm 5, close to lower 5 side of layer conductor cross-arm.
Specifically, as shown in Figure 1, Figure 2, each cross-arm horizontal length of the present embodiment setting and vertical range are in height
In the safety threshold degree that crimping road is powered, the cross-arm that major loop direction takes back road direction with double T is considering energization safety and steel pipe pole
In the case of 1 height of shaft, the spacing between major loop topping wire cross-arm 3, middle layer conductor cross-arm 4 and lower layer conductor cross-arm 5
Setting is identical as existing major loop steel pipe pole conducting wire cross-arm spacing；Double T take back each cross-arm in road direction, since ground wire is not charged,
There is no limit as long as ensure ground wire cross-arm 2 and 6 space of branch's ground wire cross-arm for the spacing of old place line cross-arm 2 and branch's ground wire cross-arm 6
Position Relative vertical, as long as the equally unlimited height at a distance from offset upper layer wire jumper cross-arm 7 of ground wire cross-arm 2 ensures sky
Between position Relative vertical, the spacing of offset lower layer wire jumper cross-arm 8 and lower layer conductor cross-arm 5 be in the steel pipe pole main line time
Exhaling for road claims in high scope, that is, is in the range of lower layer conductor cross-arm 5 and 1 distance from bottom of shaft of steel pipe pole, therefore branch leads
Line lower layer wire jumper cross-arm 8 does not interfere with the height of the present embodiment steel pipe pole main line cross-arm, this reality at a distance from lower layer conductor cross-arm 5
It is 3.5m at a distance from lower layer conductor cross-arm 5 to apply the preferred offset lower layer wire jumper cross-arm of example 8；Offset upper layer wire jumper cross-arm
7 with the spacing of topping wire cross-arm 3 because of voltage class difference or difference due to other factors, in order to which high-tension line is powered safety
And major loop conducting wire can be accurately jumped to by wire jumper on shunting busbar, while the height of steel pipe pole cross-arm can be reduced, reduce
The upper pulling force of conducting wire between steel pipe pole, the present embodiment preferred 2.5m when voltage class is the voltage class of 110kv.
The double T connection steel pipe poles in double loop provided in an embodiment of the present invention, ensure each conductive track in the case of safety threshold degree,
The whole height that each cross-arm in road direction is taken back by reducing double T, reduces the upper pulling force and work of conducting wire between the steel pipe pole of main line direction
Journey enforcement difficulty and project cost cost.
Preferably, as shown in figure 3, Fig. 4 is the a-quadrant partial enlarged view of Fig. 3, major loop steel pipe pole 13 and major loop steel pipe
Between bar 14 by the upper phase of major loop double-circuit line, middle phase is connected to form with lower phase conductor 18,19,20,21,22,23 that T is needed to connect
Major loop double-circuit line, double T take back road steel pipe pole 11 and connect to form double T and connect returning for direction again by conducting wire with steel pipe pole 12
Road.Double T connect loop ground and are connected with major loop ground wire by branch's ground wire cross-arm 6, shaft 1 and ground wire cross-arm 2, protect
The electrical perforation for demonstrate,proving ground wire, passes through between the offset upper layer wire jumper cross-arm 7 and the offset lower layer wire jumper cross-arm 8
The shunting busbar 9 of insulator 17 and conducting wire composition vertical direction, major loop conducting wire 18,19,20,21,22,23 are distinguished through wire jumper 15
It skips on the single shunting busbar 9 of the vertical direction, connecting double T through wire jumper by the shunting busbar takes back line conductor
Draw double back T links.
Specifically, shunting busbar is connected and composed by upper and lower insulator with conducting wire, and shunting busbar quantity can be 3 or 6
Root, according to the requirement of different ultra-high-tension power transmission lines, for example, being returned if T orders, the quantity that shunting busbar can be arranged is 3, from
Steel pipe pole uniform force considers, two shunting busbares and a shunting busbar can be respectively set in steel pipe pole both sides；It is connect if T
Double back then needs 6 shunting busbares of setting, and respectively three shunting busbares of setting are to ensure uniform force for steel pipe pole both sides, point per side
The phase conductor that busbar connects a major loop through wire jumper respectively is flowed, in the case where not considering cost, 6 shunting busbares are set
Steel pipe pole can equally utilize wherein 3 to be used for T to connect single back line, the preferred steel pipe pole of the present embodiment is arranged 6 and shunts busbares
Form.As shown in Fig. 2, being provided with 6 shunting busbares on steel pipe pole, 1 both sides of shaft are respectively symmetrically distributed in, it is double in order to ensure
T takes back the safety being powered between line conductor, ensures that electrified wire spacing, the preferred connection type of the present embodiment are：6 shunting busbares
From left to right, respectively through wire jumper connection major loop conducting wire 20,19,18,23,22,21, double T then is connected through wire jumper and are taken back
Line conductor.
The double T connection steel pipe poles in double loop that above-described embodiment provides are reduced under the premise of ensureing high-tension line energization safety
Double T take back the cross-arm quantity in road direction, reduce between the height and major loop steel pipe pole conducting wire of steel pipe pole due to steel pipe pole height
It is increased and generate conducting wire upper pulling force, improve the reliability of operation of power networks.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (5)
1. a kind of double T connection steel pipe poles in double loop, which is characterized in that including shaft, the shaft is disposed with master from top to bottom
Four layers of bilateral cross-arm on circuit, wherein first layer are ground wire cross-arm, are used for hanging earthing conductor, second to the 4th layer is followed successively by upper layer
Conducting wire cross-arm, middle layer conductor cross-arm and lower layer conductor cross-arm are respectively used to upper phase, middle phase and the lower phase conductor of mounting major loop；
The shaft is additionally provided with the cross-arm that at least three couples of T take back road, is followed successively by branch's ground wire cross-arm, branch from top to bottom
Conducting wire upper layer wire jumper cross-arm and offset lower layer wire jumper cross-arm, at least three couples of T take back the cross-arm of road perpendicular to institute
The plane where four layers of bilateral cross-arm is stated, branch's ground wire cross-arm is arranged in the upper end of the rod body of steel pipe rod, the branch
Conducting wire upper layer wire jumper cross-arm is arranged between the ground wire cross-arm and the topping wire cross-arm and close to the ground wire cross-arm one
Side.
2. the double T connection steel pipe poles in double loop according to claim 1, which is characterized in that offset lower layer wire jumper is horizontal
Load is arranged below the lower layer conductor cross-arm, close to the lower layer conductor cross-arm side.
3. the double T connection steel pipe poles in double loop according to claim 2, which is characterized in that the double T being connected on the steel pipe pole
Loop ground is connect by branch's ground wire cross-arm, shaft and ground wire cross-arm to be connected with major loop ground wire.
4. the double T connection steel pipe poles in double loop according to claim 3, which is characterized in that offset upper layer wire jumper is horizontal
The shunting busbar of vertical direction is made up of between load and the offset lower layer wire jumper cross-arm insulator and conducting wire.
5. the double T connection steel pipe poles in double loop according to claim 4, which is characterized in that the master being connected on the steel pipe pole
Return wire skips on the shunting busbar of the vertical direction through wire jumper and connects double T through wire jumper by the shunting busbar and takes back
Line conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610257729.6A CN105735731B (en) | 2016-04-22 | 2016-04-22 | A kind of double T connection steel pipe poles in double loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610257729.6A CN105735731B (en) | 2016-04-22 | 2016-04-22 | A kind of double T connection steel pipe poles in double loop |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105735731A CN105735731A (en) | 2016-07-06 |
| CN105735731B true CN105735731B (en) | 2018-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610257729.6A Active CN105735731B (en) | 2016-04-22 | 2016-04-22 | A kind of double T connection steel pipe poles in double loop |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107386758B (en) * | 2017-06-21 | 2019-09-20 | 国核电力规划设计研究院有限公司 | A kind of double back transmission line cut-offs steel pipe tower and system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205577567U (en) * | 2016-04-22 | 2016-09-14 | 国网山东省电力公司青岛供电公司 | Two return circuits double T connects steel pipe pole |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2256049C2 (en) * | 2002-12-11 | 2005-07-10 | Новосибирский государственный архитектурно-строительный университет | Power transmission pile and assemblage method thereof |
| CN102094544A (en) * | 2009-12-09 | 2011-06-15 | 河南省电力公司安阳供电公司 | 110KV power line double-circuit linear double-T connection tower |
| CN202416965U (en) * | 2011-12-27 | 2012-09-05 | 江苏省电力设计院 | Mixed voltage multiloop cross-shaped crossover tower |
| CN103603536B (en) * | 2013-10-25 | 2016-02-10 | 国家电网公司 | Multiloop cross is handed over across steel pipe pole |
| CN104563577A (en) * | 2013-10-29 | 2015-04-29 | 国家电网公司 | High-voltage line dual-T rod |
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2016
- 2016-04-22 CN CN201610257729.6A patent/CN105735731B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205577567U (en) * | 2016-04-22 | 2016-09-14 | 国网山东省电力公司青岛供电公司 | Two return circuits double T connects steel pipe pole |
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