Its most prominent characteristic is good ductility, with failure exhibiting plastic behavior. When subjected to extreme loads or accidental impacts (e.g., vehicle collisions), it bends and deforms instead of breaking suddenly in a brittle manner. This buys precious time for accident handling and power emergency repairs, providing high safety redundancy.
It adopts an ordinary reinforced concrete structure, with HRB400 threaded steel bars as the main reinforcement—these bars have stronger bonding with concrete. Due to its toughness-oriented design, its calculated load-bearing capacity is typically higher than that of prestressed poles of the same specification. A notable feature is its heavy self-weight.
Widely used in power lines alongside traffic arteries, densely populated urban areas, and near important crossing structures to minimize the risk of accidental collapse. It also serves as equipment supports (e.g., for switches and lightning arresters) in substations.
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