CN205046915U - Adopt two sides in two return circuits of V style of calligraphy combination cluster to cut -off steel pipe shaft tower - Google Patents
Adopt two sides in two return circuits of V style of calligraphy combination cluster to cut -off steel pipe shaft tower Download PDFInfo
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- CN205046915U CN205046915U CN201520685695.1U CN201520685695U CN205046915U CN 205046915 U CN205046915 U CN 205046915U CN 201520685695 U CN201520685695 U CN 201520685695U CN 205046915 U CN205046915 U CN 205046915U
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Abstract
The utility model provides an adopt two sides in two return circuits of V style of calligraphy combination cluster to cut -off steel pipe shaft tower. It includes body of the tower, top layer ground wire cross arm, upper wire cross arm, lower floor's wire cross arm, top layer ground wire cross arm cut -offs the side from the body of the tower dorsad to be arranged on one side the perpendicular to target and cut -offs the cross arm of circuit, arranges triumph cross arm on one side towards cut -offfing the side, upper strata wire cross arm divides the three -layer, and every layer is cut -off line arrangement both sides cross arm from the parallel target of body of the tower, cut -offs the perpendicular target of side dorsad from the body of the tower and cut -off line arrangement cross arm on one side, lower floor's wire cross arm divides the three -layer, and every layer is cut -off line arrangement both sides cross arm from the parallel target of body of the tower, cut -offs line arrangement cross arm on one side from the body of the tower towards cut -offfing the perpendicular target of side. The utility model discloses only adopt a basic shaft tower to realize the two sides in two return circuits and cut -off, reduced shaft tower quantity, form four return circuits after cut -offfing and continue to walk the line, avoid four return circuits to divide the use of branch, do not change the wire arrangement form of adjacent shaft tower, reduced the possibility that adjacent tower was reformed transform.
Description
technical field:
The utility model relates to ultra-high-tension power transmission line technical field, particularly relates to a kind of double loop bilateral adopting V-shape to combine string and cut-offs steel pipe tower.
background technology:
In existing High Voltage Transmission Line Engineering, often occur that double back transmission line cut-offs the situation accessing newly-built transformer station simultaneously, be typically employed in newly-built 2 base double loop strain rod towers below former double-circuit line, form 2 double-circuit lines and continue cabling, along with high pressure corridor, city is nervous gradually, after requiring line disconnection, form four loop line road cablings by four branch of a circuit bars, it is more to there is newly-built shaft tower quantity in this mode of cut-offfing, floor space is comparatively large, and the problems such as line corridor is wider implement difficulty larger.
summary of the invention:
The purpose of this utility model is to provide a kind of double loop bilateral adopting V-shape to combine string and cut-offs steel pipe tower, only adopts a base shaft tower to realize double loop bilateral and cut-offs, decrease shaft tower quantity; Cut-off rear formation four loop and continue cabling, avoid the use of four branch of a circuit bars; Do not change the wire arrangements mode of adjacent shaft tower, reduce the possibility of adjacent tower transformation.
In order to solve Problems existing in background technology, the utility model is by the following technical solutions: it comprises tower body, top layer ground wire cross-arm, topping wire cross-arm, lower layer conductor cross-arm, described tower body top is provided with top layer ground wire cross-arm, be provided with topping wire cross-arm below top layer ground wire cross-arm, below topping wire cross-arm, be provided with lower layer conductor cross-arm;
Described top layer ground wire cross-arm cut-offs side dorsad from tower body and arranges while cut-off the cross-arm of circuit perpendicular to target, triangular form cross-arm is on one side arranged towards cut-offfing side, three limit cross-arms of described triangle cross-arm are that isosceles triangle is arranged, from the drift angle of tower body fixed triangle shape cross-arm, the base parallel object of triangle cross-arm cut-offs line direction;
Described topping wire cross-arm divides three layers, and every layer is cut-off line arrangement both sides cross-arm from tower body parallel object, cut-offs side vertical target dorsad cut-off line arrangement cross-arm from tower body;
Described lower layer conductor cross-arm divides three layers, and every layer is cut-off line arrangement both sides cross-arm from tower body parallel object, cut-offs line arrangement cross-arm from tower body towards cut-offfing side vertical target;
The cross-arm cut-offfing line direction perpendicular to target in described topping wire cross-arm, lower layer conductor cross-arm every layer is arranged with V-type combined insulator string, described V-type combined insulator string is docked by two strain insulator-strings along line direction horizontal arrangement, on two strain insulator-string joint horizontal path directions, connect V-type simultaneously connect gold utensil, V-type connects gold utensil and is connected with cross-arm.
The utility model has the following advantages:
1) do not change target to cut-off line conductor and arrange, reduce target and cut-off the possibility that the adjacent shaft tower of circuit is difficult to meet electric clearance requirement;
2) only utilize a basic patent shaft tower can complete double loop bilateral to cut-off, newly-built shaft tower negligible amounts, investment reduction;
3) cut-off formation four loop line road and continue cabling, former four branch of a circuit towers can adopt straight line pole (or low-angle angle pole) to replace according to on-site actual situations, reduce shaft tower service condition, reduce line corridor;
4) triangle cross-arm is conducive to offsetting target and cut-offs circuit and cut-off stressed to cross-arm of rear formation circuit, and overall structure is more stable;
5) cut-off line side insulator string in target and adopt the design of V-type combined insulator string, do not change target and cut-off the overhanging feature of line direction circuit, compressible tower head width.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the structural representation of top layer ground wire cross-arm;
Fig. 4 is the structural representation of topping wire cross-arm;
Fig. 5 is the structural representation of lower layer conductor cross-arm;
Fig. 6 is the utility model wiring schematic diagram;
Fig. 7 is the structural representation of V-type combined insulator string;
Fig. 8 is the left view that in Fig. 7, V-type connects gold utensil.
detailed description of the invention:
With reference to Fig. 1-2, the utility model it comprise tower body 1, top layer ground wire cross-arm 2, topping wire cross-arm 3, lower layer conductor cross-arm 4, described tower body 1 top is provided with top layer ground wire cross-arm 2, be provided with topping wire cross-arm 3 below top layer ground wire cross-arm 2, below topping wire cross-arm 3, be provided with lower layer conductor cross-arm 4.
With reference to Fig. 3, described top layer ground wire cross-arm 2 cut-offs side dorsad from tower body 1 and arranges while cut-off the cross-arm of circuit perpendicular to target, triangular form cross-arm is on one side arranged towards cut-offfing side, three limit cross-arms of described triangle cross-arm are that isosceles triangle is arranged, from the drift angle of tower body 1 fixed triangle shape cross-arm, the base parallel object of triangle cross-arm cut-offs line direction.Described triangle cross-arm summit is cut-off line grounding wire perpendicular to the length that base is high by target and is arranged decision, and the length on described triangle cross-arm base arranges decision by cut-offfing the rear ground wire forming circuit.
With reference to Fig. 4, described topping wire cross-arm 3 points three layers, every layer is cut-off line arrangement both sides cross-arm from tower body 1 parallel object, cut-offs side vertical target dorsad cut-off line arrangement cross-arm from tower body 1.
With reference to Fig. 5, described lower layer conductor cross-arm 4 points three layers, every layer is cut-off line arrangement both sides cross-arm from tower body 1 parallel object, cut-offs line arrangement cross-arm from tower body 1 towards cut-offfing side vertical target.
With reference to Fig. 6-8, newly-built one basic invention shaft tower below circuit is cut-off in target, in topping wire cross-arm, lower layer conductor cross-arm, parallel object cut-offs four return wires that rear formation is cut-off in the suspension of line direction cross-arm, V-type combined insulator string 5 is hung under cut-offfing line direction cross-arm perpendicular to target at every layer, described V-type combined insulator string 5 is docked by two strain insulator-strings 6 along line direction horizontal arrangement, on two strain insulator-string 6 joint horizontal path directions, connect V-type simultaneously connect gold utensil 7, V-type connects gold utensil 7 and is connected with cross-arm.V-type combined insulator string hangs target and cut-offs line conductor, topping wire cross-arm, lower layer conductor cross-arm place are parallel to the cross-arm taper suspension jumper string that target cut-offs circuit, target is cut-off line conductor and is cut-off rear formation line conductor and utilizes jumper string, wire jumper to realize being communicated with, one side cross-arm cut-offfing line conductor perpendicular to target of top layer ground wire cross-arm hangs the ground wire that target cut-offs circuit, and the summit place of the base cross-arm of triangular form ground wire cross-arm hangs cut-offs line grounding wire and cut-off rear formation line grounding wire.
Be parallel to the cross-arm length that target cut-offs line direction in described topping wire cross-arm, lower layer conductor cross-arm to determine by cut-offfing the rear wire arrangements mode forming circuit, line direction is cut-off to cross-arm underhung V-type combined insulator string perpendicular to target, target is cut-off line conductor and is suspended on V-type combined insulator string, and cross-arm length is cut-off line conductor by V-type composite insulator string structure and target and arranged and determine.
Described top layer ground wire cross-arm, topping wire cross-arm, lower layer conductor cross-arm length and spacing need to be considered between wire and minimum level offset distance between lead wire and earth wire between the electrical distance of electrical distance, wire and tower body, levels adjacent wires.
Claims (1)
1. the double loop bilateral adopting V-shape to combine string cut-offs steel pipe tower, it is characterized in that, it comprises tower body, top layer ground wire cross-arm, topping wire cross-arm, lower layer conductor cross-arm, described tower body top is provided with top layer ground wire cross-arm, be provided with topping wire cross-arm below top layer ground wire cross-arm, below topping wire cross-arm, be provided with lower layer conductor cross-arm;
Described top layer ground wire cross-arm cut-offs side dorsad from tower body and arranges while cut-off the cross-arm of circuit perpendicular to target, triangular form cross-arm is on one side arranged towards cut-offfing side, three limit cross-arms of described triangle cross-arm are that isosceles triangle is arranged, from the drift angle of tower body fixed triangle shape cross-arm, the base parallel object of triangle cross-arm cut-offs line direction;
Described topping wire cross-arm divides three layers, and every layer is cut-off line arrangement both sides cross-arm from tower body parallel object, cut-offs side vertical target dorsad cut-off line arrangement cross-arm from tower body;
Described lower layer conductor cross-arm divides three layers, and every layer is cut-off line arrangement both sides cross-arm from tower body parallel object, cut-offs line arrangement cross-arm from tower body towards cut-offfing side vertical target;
The cross-arm cut-offfing line direction perpendicular to target in described topping wire cross-arm, lower layer conductor cross-arm every layer is arranged with V-type combined insulator string, described V-type combined insulator string is docked by two strain insulator-strings along line direction horizontal arrangement, on two strain insulator-string joint horizontal path directions, connect V-type simultaneously connect gold utensil, V-type connects gold utensil and is connected with cross-arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520685695.1U CN205046915U (en) | 2015-09-07 | 2015-09-07 | Adopt two sides in two return circuits of V style of calligraphy combination cluster to cut -off steel pipe shaft tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520685695.1U CN205046915U (en) | 2015-09-07 | 2015-09-07 | Adopt two sides in two return circuits of V style of calligraphy combination cluster to cut -off steel pipe shaft tower |
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| Publication Number | Publication Date |
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| CN205046915U true CN205046915U (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520685695.1U Active CN205046915U (en) | 2015-09-07 | 2015-09-07 | Adopt two sides in two return circuits of V style of calligraphy combination cluster to cut -off steel pipe shaft tower |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257067A (en) * | 2015-09-07 | 2016-01-20 | 安徽华电工程咨询设计有限公司 | Double-circuit double-sided breaking steel-tube tower using V-shaped combined strings |
| CN109914897A (en) * | 2019-03-31 | 2019-06-21 | 中国电建集团福建省电力勘测设计院有限公司 | Double back overhead transmission line is cut-off with three-dimensional cross-arm steel pipe pole |
-
2015
- 2015-09-07 CN CN201520685695.1U patent/CN205046915U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257067A (en) * | 2015-09-07 | 2016-01-20 | 安徽华电工程咨询设计有限公司 | Double-circuit double-sided breaking steel-tube tower using V-shaped combined strings |
| CN109914897A (en) * | 2019-03-31 | 2019-06-21 | 中国电建集团福建省电力勘测设计院有限公司 | Double back overhead transmission line is cut-off with three-dimensional cross-arm steel pipe pole |
| CN109914897B (en) * | 2019-03-31 | 2024-02-23 | 中国电建集团福建省电力勘测设计院有限公司 | Three-way cross arm steel pipe pole for cutting off double-circuit overhead line |
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