
What role does a route survey play in the design of an overhead distribution line?
2025-08-13A route survey is the foundational step of any overhead line project. It is a detailed site inspection and mapping of the proposed line's path, and it has a direct impact on the design. The survey provides engineers with vital data on:
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Terrain and Obstacles: The survey identifies variations in the landscape, such as hills, valleys, and river crossings, as well as obstacles like roads, buildings, and existing power lines. This information is used to select the optimal locations for utility poles.
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Span Lengths: The survey determines the distance between each support structure. This data is essential for calculating the correct sag and tension for each individual span.
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Right-of-Way: The survey defines the width of the corridor required for the line, ensuring that the finished project complies with legal requirements and maintains proper clearance from surrounding trees and structures.
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