Overhead transmission line
A high-altitude power transmission line and wire core technology, which is applied to circuits, insulated cables, electrical components, etc., can solve problems such as trouble in electric power construction departments, increased weight of power lines, and easy snow and ice accumulation on power lines.
Active Publication Date: 2014-12-10
江苏奇鹰电线电缆有限公司
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Problems solved by technology
[0004] High-altitude power transmission lines are the basic power facilities for long-distance power transmission; in the process of power transmission, they need to withstand the climate test of various regions. In rainy weather, at this time, the surface of the transmission line is very easy to accumulate snow and ice, resulting in a sharp increase in the weight of the transmission line, and then the power line is likely to break and fall when the wind blows
The current high-altitude transmission lines are made of steel wire cores, which basically face this kind of problem, causing great troubles to the power construction department
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[0018] Below in conjunction with accompanying drawing and embodiment the present invention is further described:
[0019] exist figure 1 , figure 2 In the illustrated embodiment, the high-altitude transmission line includes a non-conductive core 1; the non-conductive core 1 is wrapped with two layers of conductive layers 21, 22; the conductive layers 21, 22 are made of a continuous metal The wire is wound to form a tension spring, and the turns of the tension spring are close to each other.
[0020] Such as image 3 As shown, the metal wire 200 has a periodically and continuously changing cross section along the extending direction of the metal wire itself; the continuously changing cross section has the following characteristics: the upper and lower sides of any longitudinal section of the metal wire 200 The sideline of the road is a sinusoidal curve symmetrical about the wire axis, that is image 3 Among them, with respect to the straight line L, the upper and lower sid...
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The invention provides an overhead transmission line comprising at least one non-conductive wire core coated by at least one conductive layer. The conductive layer is composed of one continuous winded metal wire to form a tension spring, and the turns of the spring are pressed tightly; the metal wire has the cross sections changing periodically and continuously along the extending direction of the metal wire; preferably, the cross sections changing periodically and continuously are characterized in that the upper and lower edges of an optional longitudinal section of the metal wire are sine curves symmetrical about the axis of the metal wire. The overhead transmission line has the advantages that the surface of the transmission line is prevented from snow and ice in cold weather to the great extent, the gravity of the transmission line can be remained low, and the possibility of the transmission line breaking in the extreme weather can be reduced significantly.
Description
[0001] technical field [0002] The invention relates to the field of power facilities, in particular to a high-altitude transmission line. [0003] Background technique [0004] High-altitude power transmission lines are the basic power facilities for long-distance power transmission; in the process of power transmission, they need to withstand the climate test of various regions. In rainy weather, at this time, the surface of the transmission line is very easy to accumulate snow and ice, resulting in a sharp increase in the weight of the transmission line, and then the power line is likely to break and fall when the wind blows. Present high-altitude power transmission lines are made of twisted steel wire cores, which basically all face this problem, causing great trouble to the electric power construction department. [0005] Contents of the invention [0006] In view of the above problems, the object of the present invention is to provide a high-altitude transmission...
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IPC IPC(8): H01B7/17
Inventor 马根昌
Owner 江苏奇鹰电线电缆有限公司