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Corner Tower, Power Transmission Device At The Corner

Short Description:

Corner tower is a tower used to change the horizontal direction of the line.
Why does angular displacement occur? In practice, the cross arm of the pole and tower has a certain width, and the hanging points on both sides of the cross arm have a certain distance. When the corner pole tower produces a certain angle, if the corner pole tower is still located on the center line of the line at this time , then the three-phase hanging point will deviate from the center line of the original line by a certain distance, so it is necessary to artificially move the center of the corner tower to overcome the offset distance and ensure that the three-phase wire can still return to the original direction or Minimize deviation as much as possible. This is what creates the angular displacement.

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In the design of the tension pole, the suspension point of the wire cross arm is usually offset from the outer corner by a distance to ensure the air gap distance between the jumper and the inner tower body (or main column). If the corner lever is turned to the right, the corner lever does not move. However, when there are straight rods in the front and rear of the corner rod, the hanging string on the right side of the straight rod will tilt to the left, especially the upper-shaped straight rod, because the upper cross arm is on the right side, the hanging string will lean more to the left. In order to avoid the above phenomenon, the center of the corner tower should be displaced toward the bisector of the inner and outer angles.

The voltage level and use of the corner tower are the same as those of the conventional tower, but the design scheme is different according to the geographical situation, and it has one more corner function than the conventional tower.

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