Tangent Pole (Straight-line Pole)
The tangent pole is the primary type of pole used to connect transmission lines. Its main functions are to support and insulate the lines, maintain necessary tension, and withstand environmental factors such as wind loads and snow accumulation. These poles typically feature a circular cross-section and a tower-like or conical profile, with heights generally ranging from 10 to 60 meters. They are characterized by simple structures, high load-bearing capacity, and ease of installation and maintenance.
Angle Pole
Angle poles are installed where transmission lines change direction; they serve to alter the line's path while providing support and insulation. Although similar in appearance to tangent poles, they feature an angled configuration at one end. They are characterized by complex structures, significant tilt angles, and often require a two-pole installation setup.
Tension Pole (Strain Pole)
Tension poles are installed where transmission lines span wide ravines, deep valleys, or lakes, serving to extend the line's lifespan and ensure its safety. Their primary functions are to support and insulate the lines and to apply tension using tensioning equipment, thereby enhancing resistance to wind, seismic activity, and ice loads. They typically feature a Y-shaped or V-shaped profile with a shallow tilt angle. Key characteristics include complex structures, the use of diverse insulating materials and connectors, and high durability.
Terminal Pole
Terminal poles mark the end of a transmission line; their primary function is to anchor terminal insulators and other terminal equipment, ensuring the safe operation of the circuit. They typically utilize either a suspension or support configuration and appear as upright posts or C-shaped structures. They are characterized by simple structures, ease of installation, and minimal equipment requirements.
Branching Pole (Distribution Pole)
Branching poles are critical components for distributing power and facilitating supply and consumption along power lines. Their primary functions are to support and distribute electrical power from the transmission line while providing insulation and ensuring safe power transmission. They typically utilize support or suspension configurations and feature T-shaped or cross-shaped structures. They are characterized by complex structures, multiple equipment components, and high safety and reliability. Types of multifunctional utility poles
