The increased length improves the ability to cross obstacles and adapt to terrain height differences. Its reinforcement and structure have been strengthened to bear the unbalanced tension generated by the line at corners and when wires break, ensuring the stability of the line structure. It is a key node for building a strong and smart power grid.
The root diameter is larger, approximately 427mm, and the overall stiffness and stability are significantly better than those of 10m poles. Usually, higher-strength prestressed steel rods are used as main reinforcement to meet the requirements of bending moment of 100kN·m and above, with a high safety factor.
Mainly used in span sections of 10kV lines that require large crossings (such as crossing roads and rivers), corner poles, tension poles, and terminal poles of lines. It is also commonly used for overhead lines on main streets in townships and as incoming line poles for 35kV lines.
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