CN205637799U - Compound cross arm strain insulator tower in two return circuits of transmission line - Google Patents
Compound cross arm strain insulator tower in two return circuits of transmission line Download PDFInfo
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- CN205637799U CN205637799U CN201620442912.9U CN201620442912U CN205637799U CN 205637799 U CN205637799 U CN 205637799U CN 201620442912 U CN201620442912 U CN 201620442912U CN 205637799 U CN205637799 U CN 205637799U
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- cross arm
- transmission line
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Abstract
The utility model discloses a compound cross arm strain insulator tower in two return circuits of transmission line, its characterized in that: including body of the tower (1), to installing down in cross arm (3) on ground wire cross arm (2), the wire, the wire under cross arm (4) and the wire cross arm (5) in proper order on body of the tower (1) follow, in cross arm on the wire (3), the wire under cross arm (4) and the wire cross arm (5) all include with metal cross arm (6) that body of the tower (1) links to each other, metal cross arm (6) both ends symmetry formula is provided with combined material cross arm (7). The utility model provides a pair of compound cross arm strain insulator tower in two return circuits of transmission line, the line channel width is less, and is handsome in appearance, and convenient to use is nimble, can effectively reduce construction investment, reduction line channel width and tower head height, reduces the engineering construction external resistance, and is little to the environmental impact.
Description
Technical field
This utility model relates to a kind of transmission line of electricity double loop compound cross-arm anchor support, particularly relates to a kind of compound cross-arm anchor support at electric transmission line channel anxiety, belongs to allocated transmission electro-technical field.
Background technology
Along with national economy development, the rapid expansion of city size, the quantity establishing ultra-high-tension power transmission line is also being continuously increased, and high-tension line corridor is more and more nervous, place the most densely populated, that economy is more flourishing, above ground structure is many, the difficulty making process circuit corridor problem is increasing.Complicated for some regions, the situation that passage is narrow, the cross-arm of the conventional steel tower of domestic general employing is longer, busy line passage is wider, the house caused is crossed over and removal amount is big, cause that engineering construction is relatively costly, effect on environment big, part engineering even there will be the housing demolition expense situation much larger than engineering construction body expense.For reducing line channel width, reducing construction costs, therefore it is necessary the compound cross-arm strain resistant tower that designed lines channel width is less.
Utility model content
This utility model solves the technical problem that and is, there is provided a kind of line channel width less, handsome in appearance, easy to use and flexible, it is effectively reduced construction investment, reduction line channel width and tower head height, reduce engineering construction external drag, the transmission line of electricity double loop compound cross-arm anchor support that effect on environment is little.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is:
A kind of transmission line of electricity double loop compound cross-arm anchor support, it is characterised in that: including tower body, described tower body installs on ground wire cross-arm, wire in cross-arm, wire cross-arm under cross-arm and wire the most successively;On described wire, in cross-arm, wire, cross-arm all includes that with cross-arm under wire the metal cross arm being connected with described tower body, described metal cross arm two ends symmetrical expression are provided with composite material cross arm.
The material of described composite material cross arm includes glass fibre and epoxy resin.
Described metal cross arm is that hyphen carries on a shoulder pole structure, the 30%-50% of a length of conventional steel tower cross-arm.
Two termination lower surfaces of described metal cross arm are provided with hanging point, and wire is arranged on described hanging point by strain insulator-string.
It is provided with hard wire jumper fixing point on described composite material cross arm, coordinates flexible jumper to connect both sides wire with hard wire jumper.
The material of described tower body is metal.
The beneficial effect that this utility model is reached:
1, metal cross arm uses hyphen load structure, effectively reduction line channel width, reduces house and crosses over, removes, reduce engineering construction external drag, saves construction investment, reduces environmental effect;
2, metal cross arm uses hyphen load structure, shortens the metal cross arm stress arm of force, improves tower body stress, reduce tower material consumption, saves construction investment;
3, this utility model wire wire jumper is horizontally disposed, have compressed wire cross-arm interlamellar spacing, reduces tower head height, improves tower body stress, reduces tower material consumption, saves construction investment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
In conjunction with specific examples below and accompanying drawing, the utility model is described in further detail, and following instance is merely illustrative, and protection content of the present utility model is not limited to this.
As it is shown in figure 1, a kind of transmission line of electricity double loop compound cross-arm anchor support, it is characterised in that: including tower body 1, described tower body 1 installs on ground wire cross-arm 2, wire in cross-arm 3, wire cross-arm 5 under cross-arm 4 and wire the most successively;On described wire, in cross-arm 3, wire, cross-arm 4 all includes that with cross-arm under wire 5 metal cross arm 6 being connected with described tower body 1, described metal cross arm 6 two ends symmetrical expression are provided with composite material cross arm 7.
The material of described composite material cross arm 7 includes glass fibre and epoxy resin.
Described metal cross arm 6 carries on a shoulder pole structure, the 30%-50% of a length of conventional steel tower cross-arm for hyphen.
Two termination lower surfaces of described metal cross arm 6 are provided with hanging point 8, and wire is arranged on described hanging point 8 by strain insulator-string.
It is provided with hard wire jumper fixing point on described composite material cross arm 7, coordinates flexible jumper to connect both sides wire with hard wire jumper.
The material of described tower body 1 is ferrum.
This utility model six phase conductor uses drum type arrangement mode, is followed successively by ground wire, upper phase conductor, middle phase conductor and lower phase conductor from top to bottom.Ground wire cross-arm 2 is used for carrying ground wire, on wire, cross-arm 3 is used for carrying phase conductor, cross-arm 4 phase conductor in carrying in wire, under wire, cross-arm 5 is used for carrying lower phase conductor, and on wire, in cross-arm 3, wire, under cross-arm 4 and wire, cross-arm 5 all includes metal cross arm 6 and composite material cross arm 7.On wire, in cross-arm 3, wire, under cross-arm 4 and wire, cross-arm 5 is metal and composite mixing cross-arm.
Tower body 1 carries all loads of wire, ground wire and steel tower;Metal cross arm 6 uses hyphen to carry on a shoulder pole structure, and this part undertakes the load of corresponding phase conductor, and the hanging point 8 of wire tension-resistant string is positioned at both sides, metal cross arm 6 termination;Composite material cross arm 7 is positioned at outside metal cross arm 6, and this part undertakes corresponding phase wire jumper load.
Of the present utility model lead, ground wire connection tower formula is strain resistant, and wire is arranged on both sides, metal cross arm 6 termination by strain insulator-string, and composite material cross arm 7 fixes hard wire jumper, with flexible jumper and hard wire jumper connection both sides wire.
This utility model shortens metal cross arm length and conductor layer spacing, decreases line channel width, reduces steel tower tower head height, saves construction investment, and its steel tower force way is simply, easily implement.
The above is only preferred implementation of the present utility model; it is noted that, for those skilled in the art; on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (5)
1. a transmission line of electricity double loop compound cross-arm anchor support, it is characterised in that: including tower body (1), described tower body (1) installs on ground wire cross-arm (2), wire in cross-arm (3), wire cross-arm (5) under cross-arm (4) and wire the most successively;On described wire, in cross-arm (3), wire, cross-arm (4) all includes the metal cross arm (6) being connected with described tower body (1) with cross-arm under wire (5), and described metal cross arm (6) two ends symmetrical expression is provided with composite material cross arm (7).
A kind of transmission line of electricity double loop the most according to claim 1 compound cross-arm anchor support, it is characterised in that: described metal cross arm (6) is that hyphen carries on a shoulder pole structure, the 30%-50% of a length of conventional steel tower cross-arm.
A kind of transmission line of electricity double loop the most according to claim 1 compound cross-arm anchor support, it is characterised in that: two termination lower surfaces of described metal cross arm (6) are provided with hanging point (8), and wire is arranged on described hanging point (8) by strain insulator-string.
A kind of transmission line of electricity double loop the most according to claim 1 compound cross-arm anchor support, it is characterised in that: it is provided with hard wire jumper fixing point on described composite material cross arm (7), coordinates flexible jumper to connect both sides wire with hard wire jumper.
A kind of transmission line of electricity double loop the most according to claim 1 compound cross-arm anchor support, it is characterised in that: the material of described tower body (1) is metal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201620442912.9U CN205637799U (en) | 2016-05-16 | 2016-05-16 | Compound cross arm strain insulator tower in two return circuits of transmission line |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201620442912.9U CN205637799U (en) | 2016-05-16 | 2016-05-16 | Compound cross arm strain insulator tower in two return circuits of transmission line |
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CN205637799U true CN205637799U (en) | 2016-10-12 |
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CN201620442912.9U Active CN205637799U (en) | 2016-05-16 | 2016-05-16 | Compound cross arm strain insulator tower in two return circuits of transmission line |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112431466A (en) * | 2020-11-27 | 2021-03-02 | 国网陕西省电力公司建设分公司 | Double-loop composite tower head tower |
-
2016
- 2016-05-16 CN CN201620442912.9U patent/CN205637799U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112431466A (en) * | 2020-11-27 | 2021-03-02 | 国网陕西省电力公司建设分公司 | Double-loop composite tower head tower |
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