CN203097395U - Electric transmission line steel pipe pole - Google Patents

Electric transmission line steel pipe pole Download PDF

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Publication number
CN203097395U
CN203097395U CN 201320070430 CN201320070430U CN203097395U CN 203097395 U CN203097395 U CN 203097395U CN 201320070430 CN201320070430 CN 201320070430 CN 201320070430 U CN201320070430 U CN 201320070430U CN 203097395 U CN203097395 U CN 203097395U
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China
Prior art keywords
arm
cross
hanging point
strain insulator
string hanging
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CN 201320070430
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Chinese (zh)
Inventor
何炜斌
章晓满
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GUANGDONG TIANLIAN ELECTRIC POWER DESIGN CO Ltd
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GUANGDONG TIANLIAN ELECTRIC POWER DESIGN CO Ltd
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Priority to CN 201320070430 priority Critical patent/CN203097395U/en
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Abstract

The utility model discloses an electric transmission line steel pipe pole. The electric transmission line steel pipe pole comprises a main pole body, ground wire cross arms and guide line cross arms. The ground wire cross arms and the guide line cross arms are fixedly connected on the main pole body respectively. The end portions of the ground wire cross arms and the end portions of the guide line cross arms are respectively provided with tension series-hanging points, and the tension series-hanging points are arranged in the middle of a position between the end portion of at least one guide line cross arm and the main pole body The electric transmission line steel pipe pole can effectively reduce the height of a pole head of the electric transmission line steel pipe pole on the basis that the nominal height of the electric transmission line steel pipe pole can be prevented from being reduced, and therefore the safety and the reliability can be improved beneficially, and the cost of construction or reconstruction is reduced.

Description

The transmission line of electricity steel pipe pole
Technical field
The utility model relates to transmission facility, relates in particular to a kind of transmission line of electricity steel pipe pole.
Background technology
In short supply day by day along with land resources, the outlet of numerous newly-built projects of transmitting and converting electricity is the scheme that first-selected multiloop is joint used basically, intensive in power load and the circuit corridor is crowded city or industrial park, in order to save the area, the general requirements overhead wire adopts the form of steel pipe pole to build along road green belt or sidewalk.Along with the increase day by day of power load, the circuit that electrical network sets up is more and more, and the scissors crossing of circuit is inevasible.The overhead wire of high voltage grade should be striden the low overhead wire of electric pressure more in the electrical network in accordance with regulations, but because the overhead wire multiloop of low-voltage grade is total to tower, the situation of bar is common day by day altogether, the tower head height also increases and increases along with the feeder number of common tower, common bar, causes the difficulty of passing through the voltage levels overhead wire increasing.
The general employing reduced the method that shaft tower is exhaled height (the orlop cross-arm is to the height on ground) when current low-voltage grade overhead wire passed through the voltage levels overhead wire, minimum still can't pass through the time when exhaling height to be reduced to, then have to the transformation that raises of voltage levels overhead wire, there is the shortcoming of two aspects in this:
1. reduce shaft tower and exhale height promptly to reduce the lower wire distance to the ground, if online other leap things that exists down, then safe distance does not meet the demands;
2. rising voltage levels overhead wire need have a power failure for a long time to the higher overhead wire of importance, and investment cost increases, and has reduced the security reliability of electrical network, causes the electrical network economy loss.
Thereby, existing transmission line of electricity steel pipe pole generally as shown in Figure 3, its tower height is higher, it is more to be fixed on the mobile jib quantity of cross-arm, the length of cross-arm is shorter, and only is provided with the strain insulator-string hanging point at its two ends on the cross-arm.
Summary of the invention
Based on this, the utility model is to overcome the defective of prior art, and a kind of transmission line of electricity steel pipe pole is provided, and this steel pipe pole is exhaled on the higher baseline and can effectively be compressed its tower head height avoiding reducing it, thereby help improving security reliability, and reduce and build or improvement cost.
Its technical scheme is as follows:
A kind of transmission line of electricity steel pipe pole, comprise mobile jib, ground wire cross-arm and lead cross-arm, described ground wire cross-arm and lead cross-arm all are fixedly connected on the described mobile jib, the end of ground wire cross-arm and lead cross-arm is respectively arranged with the strain insulator-string hanging point, and has at least the medium position of a lead cross-arm between its end and described mobile jib also to be provided with the strain insulator-string hanging point.
Below further technical scheme is described:
Described ground wire cross-arm and lead cross-arm all are horizontally disposed with, and the lead cross-arm is located at the below of ground wire cross-arm.
Described lead cross-arm is made as three, and axially from top to bottom arranging along described mobile jib, the two ends of every lead cross-arm are provided with outside strain insulator-string hanging point respectively, and the medium position of every lead cross-arm between its end and described mobile jib is provided with inboard strain insulator-string hanging point.
Described three lead cross-arms are respectively upper conductor cross-arm, middle lead cross-arm and lower wire cross-arm, each side at described mobile jib, the outside strain insulator-string hanging point of the outside strain insulator-string hanging point of upper conductor cross-arm, inboard strain insulator-string hanging point and middle lead cross-arm cooperatively interacts and forms one group of loop strain insulator-string hanging point, and the inboard strain insulator-string hanging point of the outside strain insulator-string hanging point of lower wire cross-arm, inboard strain insulator-string hanging point and middle lead cross-arm cooperatively interacts and also forms one group of loop strain insulator-string hanging point.
Described lead cross-arm is made as two, and axially from top to bottom arranging along described mobile jib, the two ends of every lead cross-arm are provided with outside strain insulator-string hanging point, below the medium position of lead cross-arm between its end and described mobile jib be provided with inboard strain insulator-string hanging point.
Described two lead cross-arms are respectively upper conductor cross-arm and lower wire cross-arm, in each side of described mobile jib, the outside strain insulator-string hanging point of the outside strain insulator-string hanging point of lower wire cross-arm, inboard strain insulator-string hanging point and upper conductor cross-arm forms one group of loop strain insulator-string hanging point.
Advantage or principle to the aforementioned techniques scheme describes below:
1, have at least the medium position of a lead cross-arm between its end and described mobile jib that the strain insulator-string hanging point is set on the described transmission line of electricity steel pipe pole, be that the lead cross-arm can be set up the strain insulator-string hanging point by increasing length, this makes under this steel pipe pole or situation about increasing constant at the feeder number of the transmission line of electricity that it set up, can also effectively compress its tower height height, and need not to reduce it and exhale height, thereby help improving security reliability, and reduce and build or improvement cost.
2, described three lead cross-arms are respectively upper conductor cross-arm, middle lead cross-arm and lower wire cross-arm, outside strain insulator-string hanging point and inboard strain insulator-string hanging point all are set on these three lead cross-arms, and then described steel pipe pole can also effectively reduce the tower head height on the basis of having set up four loop transmission lines.
3, described two lead cross-arms are respectively upper conductor cross-arm and lower wire cross-arm, then described steel pipe pole can be by reducing the way of lead cross-arm number and change lead cross-arm length, make four loop transmission lines become the same bar in double loop, thereby can further reduce the tower head height with bar.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment one described transmission line of electricity steel pipe pole.
Fig. 2 is the structural representation of the utility model embodiment two described transmission line of electricity steel pipe poles.
Fig. 3 is the structural representation of traditional transmission line of electricity steel pipe pole.
Description of reference numerals:
10, mobile jib, 20, the upper conductor cross-arm, 30, middle lead cross-arm, 40, the lower wire cross-arm, 50, inboard strain insulator-string hanging point, 60, outside strain insulator-string hanging point, 70, the ground wire cross-arm.
The specific embodiment
Below embodiment of the present utility model is elaborated:
Embodiment one
As shown in Figure 1, a kind of transmission line of electricity steel pipe pole comprises mobile jib 10, ground wire cross-arm 70 and three lead cross-arms, and described ground wire cross-arm 70 all is fixedly connected on the described mobile jib 10 with the lead cross-arm.Wherein, described ground wire cross-arm 70 all is horizontally disposed with the lead cross-arm, and the lead cross-arm is located at the below of ground wire cross-arm 70.The two ends of described ground wire cross-arm 70 are provided with outside strain insulator-string hanging point 60.Described three lead cross-arms are respectively upper conductor cross-arm 20, middle lead cross-arm 30 and lower wire cross-arm 40, and these three lead cross-arms are axially from top to bottom arranged along described mobile jib 10.The two ends of every lead cross-arm are provided with outside strain insulator-string hanging point 60 respectively, and the medium position of every lead cross-arm between its end and described mobile jib 10 is provided with inboard strain insulator-string hanging point 50.Each side at described mobile jib 10, the outside strain insulator-string hanging point 60 of the outside strain insulator-string hanging point 60 of upper conductor cross-arm 20, inboard strain insulator-string hanging point 50 and middle lead cross-arm 30 cooperatively interacts and forms one group of loop strain insulator-string hanging point, and the inboard strain insulator-string hanging point 50 of the outside strain insulator-string hanging point 60 of lower wire cross-arm 40, inboard strain insulator-string hanging point 50 and middle lead cross-arm 30 cooperatively interacts and also forms one group of loop strain insulator-string hanging point.Every group of loop strain insulator-string hanging point arrangement mode all triangular in shape.
Present embodiment has the following advantages:
Described steel pipe pole by adding the long side traverse cross-arm length and on the lead cross-arm, set up inboard strain insulator-string hanging point 50, make this steel pipe pole on the basis of setting up its four loop transmission line, can effectively reduce the tower head height, it need not to reduce exhales height, thereby help improving security reliability, and reduce and build or improvement cost.
Embodiment two
The difference of present embodiment and embodiment one is, described lead cross-arm is made as two, be upper conductor cross-arm 20 and lower wire cross-arm 40, these two lead cross-arms are axially from top to bottom arranged along described mobile jib 10, the two ends of every lead cross-arm are provided with outside strain insulator-string hanging point 60, below the medium position of lead cross-arm between its end and described mobile jib 10 be provided with inboard strain insulator-string hanging point 50.In each side of described mobile jib 10, the outside strain insulator-string hanging point 60 of lower wire cross-arm 40, inboard strain insulator-string hanging point 50 form one group of loop strain insulator-string hanging point with the outside strain insulator-string hanging point 60 of upper conductor cross-arm 20.Every group of loop strain insulator-string hanging point arrangement mode all triangular in shape.Specifically as shown in Figure 2.
Present embodiment has been cancelled the middle lead cross-arm 30 among the embodiment one, and adjusted the length of upper conductor cross-arm 20, four loop transmission lines are become the same bar of dual loop transmission line with bar, thereby the further tower head height that reduces on the basis of dual loop transmission line can set up, also need not to reduce and exhale height, thereby can further reducing the construction costs or improvement cost, also help improving security reliability.
The above embodiment has only expressed the specific embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.

Claims (6)

1. transmission line of electricity steel pipe pole, it is characterized in that, comprise mobile jib, ground wire cross-arm and lead cross-arm, described ground wire cross-arm and lead cross-arm all are fixedly connected on the described mobile jib, the end of ground wire cross-arm and lead cross-arm is respectively arranged with the strain insulator-string hanging point, and has at least the medium position of a lead cross-arm between its end and described mobile jib also to be provided with the strain insulator-string hanging point.
2. transmission line of electricity steel pipe pole according to claim 1 is characterized in that, described ground wire cross-arm and lead cross-arm all are horizontally disposed with, and the lead cross-arm is located at the below of ground wire cross-arm.
3. transmission line of electricity steel pipe pole according to claim 1 and 2, it is characterized in that, described lead cross-arm is made as three, and axially from top to bottom arranging along described mobile jib, the two ends of every lead cross-arm are provided with outside strain insulator-string hanging point respectively, and the medium position of every lead cross-arm between its end and described mobile jib is provided with inboard strain insulator-string hanging point.
4. transmission line of electricity steel pipe pole according to claim 3, it is characterized in that, described three lead cross-arms are respectively upper conductor cross-arm, middle lead cross-arm and lower wire cross-arm, each side at described mobile jib, outside strain insulator-string hanging point on outside strain insulator-string hanging point on the upper conductor cross-arm, inboard strain insulator-string hanging point and the middle lead cross-arm cooperatively interacts and forms one group of loop strain insulator-string hanging point, and the inboard strain insulator-string hanging point on the outside strain insulator-string hanging point on the lower wire cross-arm, inboard strain insulator-string hanging point and the middle lead cross-arm cooperatively interacts and also forms one group of loop strain insulator-string hanging point.
5. transmission line of electricity steel pipe pole according to claim 1 and 2, it is characterized in that, described lead cross-arm is made as two, and axially from top to bottom arranging along described mobile jib, the two ends of every lead cross-arm are provided with outside strain insulator-string hanging point, below the medium position of lead cross-arm between its end and described mobile jib be provided with inboard strain insulator-string hanging point.
6. transmission line of electricity steel pipe pole according to claim 5, it is characterized in that, described two lead cross-arms are respectively upper conductor cross-arm and lower wire cross-arm, in each side of described mobile jib, the outside strain insulator-string hanging point on the outside strain insulator-string hanging point on the lower wire cross-arm, inboard strain insulator-string hanging point and the upper conductor cross-arm forms one group of loop strain insulator-string hanging point.
CN 201320070430 2013-02-06 2013-02-06 Electric transmission line steel pipe pole Active CN203097395U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320070430 CN203097395U (en) 2013-02-06 2013-02-06 Electric transmission line steel pipe pole

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Application Number Priority Date Filing Date Title
CN 201320070430 CN203097395U (en) 2013-02-06 2013-02-06 Electric transmission line steel pipe pole

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103132765A (en) * 2013-02-06 2013-06-05 广东天联电力设计有限公司 Steel pipe pole for transmission lines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103132765A (en) * 2013-02-06 2013-06-05 广东天联电力设计有限公司 Steel pipe pole for transmission lines

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