
What are the key distinctions between tangent towers and deviation towers, and when is each used?
2025-08-13Our Answer: Supports, such as towers or poles, are fundamental to an overhead line, and their design varies based on their function.
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Tangent Towers: These are designed for straight runs of a power line. Their primary purpose is to support the conductors' weight and withstand wind and ice loads. They are the most common type of tower and are engineered to handle primarily vertical and minimal horizontal forces.
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Deviation Towers: These are used when the power line changes direction. Their design is more robust than a tangent tower because they must handle the significant horizontal forces created by the tension of the conductors as the line turns. They are also used at dead-end points or where the line terminates at a substation.